R Under development (unstable) (2024-07-28 r86931 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> source("incl/start.R")
[17:27:57.843] plan(): Setting new future strategy stack:
[17:27:57.845] List of future strategies:
[17:27:57.845] 1. sequential:
[17:27:57.845]    - args: function (..., envir = parent.frame(), workers = "<NULL>")
[17:27:57.845]    - tweaked: FALSE
[17:27:57.845]    - call: future::plan("sequential")
[17:27:57.871] plan(): nbrOfWorkers() = 1
> library("listenv")
> 
> oopts <- c(oopts, options(future.globals.resolve = TRUE))
> setTimeLimit(cpu = 10, elapsed = 10, transient = TRUE)
> 
> message("*** Tricky use cases related to globals (part 2) ...")
*** Tricky use cases related to globals (part 2) ...
> 
> ## Allow for two background processes
> plan(multisession, workers = 2L)
[17:27:57.889] plan(): Setting new future strategy stack:
[17:27:57.889] List of future strategies:
[17:27:57.889] 1. multisession:
[17:27:57.889]    - args: function (..., workers = 2L, envir = parent.frame())
[17:27:57.889]    - tweaked: TRUE
[17:27:57.889]    - call: plan(multisession, workers = 2L)
[17:27:57.913] plan(): plan_init() of 'tweaked', 'multisession', 'cluster', 'multiprocess', 'future', 'function' ...
[17:27:57.913] multisession:
[17:27:57.913] - args: function (..., workers = 2L, envir = parent.frame())
[17:27:57.913] - tweaked: TRUE
[17:27:57.913] - call: plan(multisession, workers = 2L)
Warning in getGlobalsAndPackages(expr, envir = envir, tweak = tweakExpression,  :
  R option 'future.globals.resolve' may only be used for troubleshooting. It must not be used in production since it changes how futures are evaluated and there is a great risk that the results cannot be reproduced elsewhere: 'TRUE'
[17:27:57.916] getGlobalsAndPackages() ...
[17:27:57.916] Not searching for globals
[17:27:57.916] - globals: [0] <none>
[17:27:57.917] getGlobalsAndPackages() ... DONE
[17:27:57.917] [local output] makeClusterPSOCK() ...
[17:27:57.967] [local output] Workers: [n = 2] 'localhost', 'localhost'
[17:27:57.976] [local output] Base port: 31907
[17:27:57.977] [local output] Getting setup options for 2 cluster nodes ...
[17:27:57.977] [local output]  - Node #1 of 2 ...
[17:27:57.978] [local output] localMachine=TRUE => revtunnel=FALSE

[17:27:57.980] Testing if worker's PID can be inferred: '"D:/RCompile/recent/R/bin/x64/Rscript" -e "try(suppressWarnings(cat(Sys.getpid(),file=\"D:/temp/RtmpMDR7Y2/worker.rank=1.parallelly.parent=171488.29de065bf5.pid\")), silent = TRUE)" -e "file.exists(\"D:/temp/RtmpMDR7Y2/worker.rank=1.parallelly.parent=171488.29de065bf5.pid\")"'
[17:27:58.533] - Possible to infer worker's PID: TRUE
[17:27:58.535] [local output] Rscript port: 31907

[17:27:58.536] [local output]  - Node #2 of 2 ...
[17:27:58.537] [local output] localMachine=TRUE => revtunnel=FALSE

[17:27:58.539] [local output] Rscript port: 31907

[17:27:58.540] [local output] Getting setup options for 2 cluster nodes ... done
[17:27:58.540] [local output]  - Parallel setup requested for some PSOCK nodes
[17:27:58.541] [local output] Setting up PSOCK nodes in parallel
[17:27:58.542] List of 36
[17:27:58.542]  $ worker          : chr "localhost"
[17:27:58.542]   ..- attr(*, "localhost")= logi TRUE
[17:27:58.542]  $ master          : chr "localhost"
[17:27:58.542]  $ port            : int 31907
[17:27:58.542]  $ connectTimeout  : num 120
[17:27:58.542]  $ timeout         : num 120
[17:27:58.542]  $ rscript         : chr "\"D:/RCompile/recent/R/bin/x64/Rscript\""
[17:27:58.542]  $ homogeneous     : logi TRUE
[17:27:58.542]  $ rscript_args    : chr "--default-packages=datasets,utils,grDevices,graphics,stats,methods -e \"#label=globals,resolve.R:171488:CRANWIN"| __truncated__
[17:27:58.542]  $ rscript_envs    : NULL
[17:27:58.542]  $ rscript_libs    : chr [1:2] "D:/temp/RtmpsXpk4j/RLIBS_1097c668d2fda" "D:/RCompile/recent/R/library"
[17:27:58.542]  $ rscript_startup : NULL
[17:27:58.542]  $ rscript_sh      : chr [1:2] "cmd" "cmd"
[17:27:58.542]  $ default_packages: chr [1:6] "datasets" "utils" "grDevices" "graphics" ...
[17:27:58.542]  $ methods         : logi TRUE
[17:27:58.542]  $ socketOptions   : chr "no-delay"
[17:27:58.542]  $ useXDR          : logi FALSE
[17:27:58.542]  $ outfile         : chr "/dev/null"
[17:27:58.542]  $ renice          : int NA
[17:27:58.542]  $ rshcmd          : NULL
[17:27:58.542]  $ user            : chr(0) 
[17:27:58.542]  $ revtunnel       : logi FALSE
[17:27:58.542]  $ rshlogfile      : NULL
[17:27:58.542]  $ rshopts         : chr(0) 
[17:27:58.542]  $ rank            : int 1
[17:27:58.542]  $ manual          : logi FALSE
[17:27:58.542]  $ dryrun          : logi FALSE
[17:27:58.542]  $ quiet           : logi FALSE
[17:27:58.542]  $ setup_strategy  : chr "parallel"
[17:27:58.542]  $ local_cmd       : chr "\"D:/RCompile/recent/R/bin/x64/Rscript\" --default-packages=datasets,utils,grDevices,graphics,stats,methods -e "| __truncated__
[17:27:58.542]  $ pidfile         : chr "D:/temp/RtmpMDR7Y2/worker.rank=1.parallelly.parent=171488.29de065bf5.pid"
[17:27:58.542]  $ rshcmd_label    : NULL
[17:27:58.542]  $ rsh_call        : NULL
[17:27:58.542]  $ cmd             : chr "\"D:/RCompile/recent/R/bin/x64/Rscript\" --default-packages=datasets,utils,grDevices,graphics,stats,methods -e "| __truncated__
[17:27:58.542]  $ localMachine    : logi TRUE
[17:27:58.542]  $ make_fcn        :function (worker = getOption2("parallelly.localhost.hostname", "localhost"), 
[17:27:58.542]     master = NULL, port, connectTimeout = getOption2("parallelly.makeNodePSOCK.connectTimeout", 
[17:27:58.542]         2 * 60), timeout = getOption2("parallelly.makeNodePSOCK.timeout", 
[17:27:58.542]         30 * 24 * 60 * 60), rscript = NULL, homogeneous = NULL, rscript_args = NULL, 
[17:27:58.542]     rscript_envs = NULL, rscript_libs = NULL, rscript_startup = NULL, rscript_sh = c("auto", 
[17:27:58.542]         "cmd", "sh", "none"), default_packages = c("datasets", "utils", 
[17:27:58.542]         "grDevices", "graphics", "stats", if (methods) "methods"), methods = TRUE, 
[17:27:58.542]     socketOptions = getOption2("parallelly.makeNodePSOCK.socketOptions", 
[17:27:58.542]         "no-delay"), useXDR = getOption2("parallelly.makeNodePSOCK.useXDR", 
[17:27:58.542]         FALSE), outfile = "/dev/null", renice = NA_integer_, rshcmd = getOption2("parallelly.makeNodePSOCK.rshcmd", 
[17:27:58.542]         NULL), user = NULL, revtunnel = NA, rshlogfile = NULL, rshopts = getOption2("parallelly.makeNodePSOCK.rshopts", 
[17:27:58.542]         NULL), rank = 1L, manual = FALSE, dryrun = FALSE, quiet = FALSE, 
[17:27:58.542]     setup_strategy = getOption2("parallelly.makeNodePSOCK.setup_strategy", 
[17:27:58.542]         "parallel"), action = c("launch", "options"), verbose = FALSE)  
[17:27:58.542]  $ arguments       :List of 28
[17:27:58.542]   ..$ worker          : chr "localhost"
[17:27:58.542]   ..$ master          : NULL
[17:27:58.542]   ..$ port            : int 31907
[17:27:58.542]   ..$ connectTimeout  : num 120
[17:27:58.542]   ..$ timeout         : num 120
[17:27:58.542]   ..$ rscript         : NULL
[17:27:58.542]   ..$ homogeneous     : NULL
[17:27:58.542]   ..$ rscript_args    : NULL
[17:27:58.542]   ..$ rscript_envs    : NULL
[17:27:58.542]   ..$ rscript_libs    : chr [1:2] "D:/temp/RtmpsXpk4j/RLIBS_1097c668d2fda" "D:/RCompile/recent/R/library"
[17:27:58.542]   ..$ rscript_startup : NULL
[17:27:58.542]   ..$ rscript_sh      : chr "auto"
[17:27:58.542]   ..$ default_packages: chr [1:6] "datasets" "utils" "grDevices" "graphics" ...
[17:27:58.542]   ..$ methods         : logi TRUE
[17:27:58.542]   ..$ socketOptions   : chr "no-delay"
[17:27:58.542]   ..$ useXDR          : logi FALSE
[17:27:58.542]   ..$ outfile         : chr "/dev/null"
[17:27:58.542]   ..$ renice          : int NA
[17:27:58.542]   ..$ rshcmd          : NULL
[17:27:58.542]   ..$ user            : NULL
[17:27:58.542]   ..$ revtunnel       : logi NA
[17:27:58.542]   ..$ rshlogfile      : NULL
[17:27:58.542]   ..$ rshopts         : NULL
[17:27:58.542]   ..$ rank            : int 1
[17:27:58.542]   ..$ manual          : logi FALSE
[17:27:58.542]   ..$ dryrun          : logi FALSE
[17:27:58.542]   ..$ quiet           : logi FALSE
[17:27:58.542]   ..$ setup_strategy  : chr "parallel"
[17:27:58.542]  - attr(*, "class")= chr [1:2] "makeNodePSOCKOptions" "makeNodeOptions"
[17:27:58.577] [local output] System call to launch all workers:
[17:27:58.577] [local output] "D:/RCompile/recent/R/bin/x64/Rscript" --default-packages=datasets,utils,grDevices,graphics,stats,methods -e "#label=globals,resolve.R:171488:CRANWIN3:CRAN" -e "try(suppressWarnings(cat(Sys.getpid(),file=\"D:/temp/RtmpMDR7Y2/worker.rank=1.parallelly.parent=171488.29de065bf5.pid\")), silent = TRUE)" -e "options(socketOptions = \"no-delay\")" -e ".libPaths(c(\"D:/temp/RtmpsXpk4j/RLIBS_1097c668d2fda\",\"D:/RCompile/recent/R/library\"))" -e "workRSOCK <- tryCatch(parallel:::.workRSOCK, error=function(e) parallel:::.slaveRSOCK); workRSOCK()" MASTER=localhost PORT=31907 OUT=/dev/null TIMEOUT=120 XDR=FALSE SETUPTIMEOUT=120 SETUPSTRATEGY=parallel
[17:27:58.578] [local output] Starting PSOCK main server
[17:27:58.588] [local output] Workers launched
[17:27:58.588] [local output] Waiting for workers to connect back
[17:27:58.589]  - [local output] 0 workers out of 2 ready
[17:27:58.834]  - [local output] 0 workers out of 2 ready
[17:27:58.834]  - [local output] 1 workers out of 2 ready
[17:27:58.839]  - [local output] 1 workers out of 2 ready
[17:27:58.839]  - [local output] 2 workers out of 2 ready
[17:27:58.839] [local output] Launching of 2 workers completed
[17:27:58.840] [local output] Number of nodes in cluster: 2
[17:27:58.840] [local output] Collecting session information from 2 workers
[17:27:58.841] [local output]  - Worker #1 of 2
[17:27:58.842] [local output]  - Worker #2 of 2
[17:27:58.842] [local output] makeClusterPSOCK() ... done
[17:27:58.860] Packages needed by the future expression (n = 0): <none>
[17:27:58.860] Packages needed by future strategies (n = 0): <none>
[17:27:58.862] {
[17:27:58.862]     {
[17:27:58.862]         {
[17:27:58.862]             ...future.startTime <- base::Sys.time()
[17:27:58.862]             {
[17:27:58.862]                 {
[17:27:58.862]                   {
[17:27:58.862]                     {
[17:27:58.862]                       base::local({
[17:27:58.862]                         has_future <- base::requireNamespace("future", 
[17:27:58.862]                           quietly = TRUE)
[17:27:58.862]                         if (has_future) {
[17:27:58.862]                           ns <- base::getNamespace("future")
[17:27:58.862]                           version <- ns[[".package"]][["version"]]
[17:27:58.862]                           if (is.null(version)) 
[17:27:58.862]                             version <- utils::packageVersion("future")
[17:27:58.862]                         }
[17:27:58.862]                         else {
[17:27:58.862]                           version <- NULL
[17:27:58.862]                         }
[17:27:58.862]                         if (!has_future || version < "1.8.0") {
[17:27:58.862]                           info <- base::c(r_version = base::gsub("R version ", 
[17:27:58.862]                             "", base::R.version$version.string), 
[17:27:58.862]                             platform = base::sprintf("%s (%s-bit)", 
[17:27:58.862]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[17:27:58.862]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[17:27:58.862]                               "release", "version")], collapse = " "), 
[17:27:58.862]                             hostname = base::Sys.info()[["nodename"]])
[17:27:58.862]                           info <- base::sprintf("%s: %s", base::names(info), 
[17:27:58.862]                             info)
[17:27:58.862]                           info <- base::paste(info, collapse = "; ")
[17:27:58.862]                           if (!has_future) {
[17:27:58.862]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[17:27:58.862]                               info)
[17:27:58.862]                           }
[17:27:58.862]                           else {
[17:27:58.862]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[17:27:58.862]                               info, version)
[17:27:58.862]                           }
[17:27:58.862]                           base::stop(msg)
[17:27:58.862]                         }
[17:27:58.862]                       })
[17:27:58.862]                     }
[17:27:58.862]                     ...future.mc.cores.old <- base::getOption("mc.cores")
[17:27:58.862]                     base::options(mc.cores = 1L)
[17:27:58.862]                   }
[17:27:58.862]                   ...future.strategy.old <- future::plan("list")
[17:27:58.862]                   options(future.plan = NULL)
[17:27:58.862]                   Sys.unsetenv("R_FUTURE_PLAN")
[17:27:58.862]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[17:27:58.862]                 }
[17:27:58.862]                 ...future.workdir <- getwd()
[17:27:58.862]             }
[17:27:58.862]             ...future.oldOptions <- base::as.list(base::.Options)
[17:27:58.862]             ...future.oldEnvVars <- base::Sys.getenv()
[17:27:58.862]         }
[17:27:58.862]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[17:27:58.862]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[17:27:58.862]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[17:27:58.862]             future.globals.resolve = TRUE, future.resolve.recursive = NULL, 
[17:27:58.862]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[17:27:58.862]             future.stdout.windows.reencode = NULL, width = 80L)
[17:27:58.862]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[17:27:58.862]             base::names(...future.oldOptions))
[17:27:58.862]     }
[17:27:58.862]     if (FALSE) {
[17:27:58.862]     }
[17:27:58.862]     else {
[17:27:58.862]         if (TRUE) {
[17:27:58.862]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[17:27:58.862]                 open = "w")
[17:27:58.862]         }
[17:27:58.862]         else {
[17:27:58.862]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[17:27:58.862]                 windows = "NUL", "/dev/null"), open = "w")
[17:27:58.862]         }
[17:27:58.862]         base::sink(...future.stdout, type = "output", split = FALSE)
[17:27:58.862]         base::on.exit(if (!base::is.null(...future.stdout)) {
[17:27:58.862]             base::sink(type = "output", split = FALSE)
[17:27:58.862]             base::close(...future.stdout)
[17:27:58.862]         }, add = TRUE)
[17:27:58.862]     }
[17:27:58.862]     ...future.frame <- base::sys.nframe()
[17:27:58.862]     ...future.conditions <- base::list()
[17:27:58.862]     ...future.rng <- base::globalenv()$.Random.seed
[17:27:58.862]     if (FALSE) {
[17:27:58.862]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[17:27:58.862]             "...future.value", "...future.globalenv.names", ".Random.seed")
[17:27:58.862]     }
[17:27:58.862]     ...future.result <- base::tryCatch({
[17:27:58.862]         base::withCallingHandlers({
[17:27:58.862]             ...future.value <- base::withVisible(base::local({
[17:27:58.862]                 ...future.makeSendCondition <- base::local({
[17:27:58.862]                   sendCondition <- NULL
[17:27:58.862]                   function(frame = 1L) {
[17:27:58.862]                     if (is.function(sendCondition)) 
[17:27:58.862]                       return(sendCondition)
[17:27:58.862]                     ns <- getNamespace("parallel")
[17:27:58.862]                     if (exists("sendData", mode = "function", 
[17:27:58.862]                       envir = ns)) {
[17:27:58.862]                       parallel_sendData <- get("sendData", mode = "function", 
[17:27:58.862]                         envir = ns)
[17:27:58.862]                       envir <- sys.frame(frame)
[17:27:58.862]                       master <- NULL
[17:27:58.862]                       while (!identical(envir, .GlobalEnv) && 
[17:27:58.862]                         !identical(envir, emptyenv())) {
[17:27:58.862]                         if (exists("master", mode = "list", envir = envir, 
[17:27:58.862]                           inherits = FALSE)) {
[17:27:58.862]                           master <- get("master", mode = "list", 
[17:27:58.862]                             envir = envir, inherits = FALSE)
[17:27:58.862]                           if (inherits(master, c("SOCKnode", 
[17:27:58.862]                             "SOCK0node"))) {
[17:27:58.862]                             sendCondition <<- function(cond) {
[17:27:58.862]                               data <- list(type = "VALUE", value = cond, 
[17:27:58.862]                                 success = TRUE)
[17:27:58.862]                               parallel_sendData(master, data)
[17:27:58.862]                             }
[17:27:58.862]                             return(sendCondition)
[17:27:58.862]                           }
[17:27:58.862]                         }
[17:27:58.862]                         frame <- frame + 1L
[17:27:58.862]                         envir <- sys.frame(frame)
[17:27:58.862]                       }
[17:27:58.862]                     }
[17:27:58.862]                     sendCondition <<- function(cond) NULL
[17:27:58.862]                   }
[17:27:58.862]                 })
[17:27:58.862]                 withCallingHandlers({
[17:27:58.862]                   NA
[17:27:58.862]                 }, immediateCondition = function(cond) {
[17:27:58.862]                   sendCondition <- ...future.makeSendCondition()
[17:27:58.862]                   sendCondition(cond)
[17:27:58.862]                   muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:58.862]                   {
[17:27:58.862]                     inherits <- base::inherits
[17:27:58.862]                     invokeRestart <- base::invokeRestart
[17:27:58.862]                     is.null <- base::is.null
[17:27:58.862]                     muffled <- FALSE
[17:27:58.862]                     if (inherits(cond, "message")) {
[17:27:58.862]                       muffled <- grepl(pattern, "muffleMessage")
[17:27:58.862]                       if (muffled) 
[17:27:58.862]                         invokeRestart("muffleMessage")
[17:27:58.862]                     }
[17:27:58.862]                     else if (inherits(cond, "warning")) {
[17:27:58.862]                       muffled <- grepl(pattern, "muffleWarning")
[17:27:58.862]                       if (muffled) 
[17:27:58.862]                         invokeRestart("muffleWarning")
[17:27:58.862]                     }
[17:27:58.862]                     else if (inherits(cond, "condition")) {
[17:27:58.862]                       if (!is.null(pattern)) {
[17:27:58.862]                         computeRestarts <- base::computeRestarts
[17:27:58.862]                         grepl <- base::grepl
[17:27:58.862]                         restarts <- computeRestarts(cond)
[17:27:58.862]                         for (restart in restarts) {
[17:27:58.862]                           name <- restart$name
[17:27:58.862]                           if (is.null(name)) 
[17:27:58.862]                             next
[17:27:58.862]                           if (!grepl(pattern, name)) 
[17:27:58.862]                             next
[17:27:58.862]                           invokeRestart(restart)
[17:27:58.862]                           muffled <- TRUE
[17:27:58.862]                           break
[17:27:58.862]                         }
[17:27:58.862]                       }
[17:27:58.862]                     }
[17:27:58.862]                     invisible(muffled)
[17:27:58.862]                   }
[17:27:58.862]                   muffleCondition(cond)
[17:27:58.862]                 })
[17:27:58.862]             }))
[17:27:58.862]             future::FutureResult(value = ...future.value$value, 
[17:27:58.862]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[17:27:58.862]                   ...future.rng), globalenv = if (FALSE) 
[17:27:58.862]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[17:27:58.862]                     ...future.globalenv.names))
[17:27:58.862]                 else NULL, started = ...future.startTime, version = "1.8")
[17:27:58.862]         }, condition = base::local({
[17:27:58.862]             c <- base::c
[17:27:58.862]             inherits <- base::inherits
[17:27:58.862]             invokeRestart <- base::invokeRestart
[17:27:58.862]             length <- base::length
[17:27:58.862]             list <- base::list
[17:27:58.862]             seq.int <- base::seq.int
[17:27:58.862]             signalCondition <- base::signalCondition
[17:27:58.862]             sys.calls <- base::sys.calls
[17:27:58.862]             `[[` <- base::`[[`
[17:27:58.862]             `+` <- base::`+`
[17:27:58.862]             `<<-` <- base::`<<-`
[17:27:58.862]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[17:27:58.862]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[17:27:58.862]                   3L)]
[17:27:58.862]             }
[17:27:58.862]             function(cond) {
[17:27:58.862]                 is_error <- inherits(cond, "error")
[17:27:58.862]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[17:27:58.862]                   NULL)
[17:27:58.862]                 if (is_error) {
[17:27:58.862]                   sessionInformation <- function() {
[17:27:58.862]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[17:27:58.862]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[17:27:58.862]                       search = base::search(), system = base::Sys.info())
[17:27:58.862]                   }
[17:27:58.862]                   ...future.conditions[[length(...future.conditions) + 
[17:27:58.862]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[17:27:58.862]                     cond$call), session = sessionInformation(), 
[17:27:58.862]                     timestamp = base::Sys.time(), signaled = 0L)
[17:27:58.862]                   signalCondition(cond)
[17:27:58.862]                 }
[17:27:58.862]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[17:27:58.862]                 "immediateCondition"))) {
[17:27:58.862]                   signal <- TRUE && inherits(cond, "immediateCondition")
[17:27:58.862]                   ...future.conditions[[length(...future.conditions) + 
[17:27:58.862]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[17:27:58.862]                   if (TRUE && !signal) {
[17:27:58.862]                     muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:58.862]                     {
[17:27:58.862]                       inherits <- base::inherits
[17:27:58.862]                       invokeRestart <- base::invokeRestart
[17:27:58.862]                       is.null <- base::is.null
[17:27:58.862]                       muffled <- FALSE
[17:27:58.862]                       if (inherits(cond, "message")) {
[17:27:58.862]                         muffled <- grepl(pattern, "muffleMessage")
[17:27:58.862]                         if (muffled) 
[17:27:58.862]                           invokeRestart("muffleMessage")
[17:27:58.862]                       }
[17:27:58.862]                       else if (inherits(cond, "warning")) {
[17:27:58.862]                         muffled <- grepl(pattern, "muffleWarning")
[17:27:58.862]                         if (muffled) 
[17:27:58.862]                           invokeRestart("muffleWarning")
[17:27:58.862]                       }
[17:27:58.862]                       else if (inherits(cond, "condition")) {
[17:27:58.862]                         if (!is.null(pattern)) {
[17:27:58.862]                           computeRestarts <- base::computeRestarts
[17:27:58.862]                           grepl <- base::grepl
[17:27:58.862]                           restarts <- computeRestarts(cond)
[17:27:58.862]                           for (restart in restarts) {
[17:27:58.862]                             name <- restart$name
[17:27:58.862]                             if (is.null(name)) 
[17:27:58.862]                               next
[17:27:58.862]                             if (!grepl(pattern, name)) 
[17:27:58.862]                               next
[17:27:58.862]                             invokeRestart(restart)
[17:27:58.862]                             muffled <- TRUE
[17:27:58.862]                             break
[17:27:58.862]                           }
[17:27:58.862]                         }
[17:27:58.862]                       }
[17:27:58.862]                       invisible(muffled)
[17:27:58.862]                     }
[17:27:58.862]                     muffleCondition(cond, pattern = "^muffle")
[17:27:58.862]                   }
[17:27:58.862]                 }
[17:27:58.862]                 else {
[17:27:58.862]                   if (TRUE) {
[17:27:58.862]                     muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:58.862]                     {
[17:27:58.862]                       inherits <- base::inherits
[17:27:58.862]                       invokeRestart <- base::invokeRestart
[17:27:58.862]                       is.null <- base::is.null
[17:27:58.862]                       muffled <- FALSE
[17:27:58.862]                       if (inherits(cond, "message")) {
[17:27:58.862]                         muffled <- grepl(pattern, "muffleMessage")
[17:27:58.862]                         if (muffled) 
[17:27:58.862]                           invokeRestart("muffleMessage")
[17:27:58.862]                       }
[17:27:58.862]                       else if (inherits(cond, "warning")) {
[17:27:58.862]                         muffled <- grepl(pattern, "muffleWarning")
[17:27:58.862]                         if (muffled) 
[17:27:58.862]                           invokeRestart("muffleWarning")
[17:27:58.862]                       }
[17:27:58.862]                       else if (inherits(cond, "condition")) {
[17:27:58.862]                         if (!is.null(pattern)) {
[17:27:58.862]                           computeRestarts <- base::computeRestarts
[17:27:58.862]                           grepl <- base::grepl
[17:27:58.862]                           restarts <- computeRestarts(cond)
[17:27:58.862]                           for (restart in restarts) {
[17:27:58.862]                             name <- restart$name
[17:27:58.862]                             if (is.null(name)) 
[17:27:58.862]                               next
[17:27:58.862]                             if (!grepl(pattern, name)) 
[17:27:58.862]                               next
[17:27:58.862]                             invokeRestart(restart)
[17:27:58.862]                             muffled <- TRUE
[17:27:58.862]                             break
[17:27:58.862]                           }
[17:27:58.862]                         }
[17:27:58.862]                       }
[17:27:58.862]                       invisible(muffled)
[17:27:58.862]                     }
[17:27:58.862]                     muffleCondition(cond, pattern = "^muffle")
[17:27:58.862]                   }
[17:27:58.862]                 }
[17:27:58.862]             }
[17:27:58.862]         }))
[17:27:58.862]     }, error = function(ex) {
[17:27:58.862]         base::structure(base::list(value = NULL, visible = NULL, 
[17:27:58.862]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[17:27:58.862]                 ...future.rng), started = ...future.startTime, 
[17:27:58.862]             finished = Sys.time(), session_uuid = NA_character_, 
[17:27:58.862]             version = "1.8"), class = "FutureResult")
[17:27:58.862]     }, finally = {
[17:27:58.862]         if (!identical(...future.workdir, getwd())) 
[17:27:58.862]             setwd(...future.workdir)
[17:27:58.862]         {
[17:27:58.862]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[17:27:58.862]                 ...future.oldOptions$nwarnings <- NULL
[17:27:58.862]             }
[17:27:58.862]             base::options(...future.oldOptions)
[17:27:58.862]             if (.Platform$OS.type == "windows") {
[17:27:58.862]                 old_names <- names(...future.oldEnvVars)
[17:27:58.862]                 envs <- base::Sys.getenv()
[17:27:58.862]                 names <- names(envs)
[17:27:58.862]                 common <- intersect(names, old_names)
[17:27:58.862]                 added <- setdiff(names, old_names)
[17:27:58.862]                 removed <- setdiff(old_names, names)
[17:27:58.862]                 changed <- common[...future.oldEnvVars[common] != 
[17:27:58.862]                   envs[common]]
[17:27:58.862]                 NAMES <- toupper(changed)
[17:27:58.862]                 args <- list()
[17:27:58.862]                 for (kk in seq_along(NAMES)) {
[17:27:58.862]                   name <- changed[[kk]]
[17:27:58.862]                   NAME <- NAMES[[kk]]
[17:27:58.862]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:58.862]                     next
[17:27:58.862]                   args[[name]] <- ...future.oldEnvVars[[name]]
[17:27:58.862]                 }
[17:27:58.862]                 NAMES <- toupper(added)
[17:27:58.862]                 for (kk in seq_along(NAMES)) {
[17:27:58.862]                   name <- added[[kk]]
[17:27:58.862]                   NAME <- NAMES[[kk]]
[17:27:58.862]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:58.862]                     next
[17:27:58.862]                   args[[name]] <- ""
[17:27:58.862]                 }
[17:27:58.862]                 NAMES <- toupper(removed)
[17:27:58.862]                 for (kk in seq_along(NAMES)) {
[17:27:58.862]                   name <- removed[[kk]]
[17:27:58.862]                   NAME <- NAMES[[kk]]
[17:27:58.862]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:58.862]                     next
[17:27:58.862]                   args[[name]] <- ...future.oldEnvVars[[name]]
[17:27:58.862]                 }
[17:27:58.862]                 if (length(args) > 0) 
[17:27:58.862]                   base::do.call(base::Sys.setenv, args = args)
[17:27:58.862]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[17:27:58.862]             }
[17:27:58.862]             else {
[17:27:58.862]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[17:27:58.862]             }
[17:27:58.862]             {
[17:27:58.862]                 if (base::length(...future.futureOptionsAdded) > 
[17:27:58.862]                   0L) {
[17:27:58.862]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[17:27:58.862]                   base::names(opts) <- ...future.futureOptionsAdded
[17:27:58.862]                   base::options(opts)
[17:27:58.862]                 }
[17:27:58.862]                 {
[17:27:58.862]                   {
[17:27:58.862]                     base::options(mc.cores = ...future.mc.cores.old)
[17:27:58.862]                     NULL
[17:27:58.862]                   }
[17:27:58.862]                   options(future.plan = NULL)
[17:27:58.862]                   if (is.na(NA_character_)) 
[17:27:58.862]                     Sys.unsetenv("R_FUTURE_PLAN")
[17:27:58.862]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[17:27:58.862]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[17:27:58.862]                     .init = FALSE)
[17:27:58.862]                 }
[17:27:58.862]             }
[17:27:58.862]         }
[17:27:58.862]     })
[17:27:58.862]     if (TRUE) {
[17:27:58.862]         base::sink(type = "output", split = FALSE)
[17:27:58.862]         if (TRUE) {
[17:27:58.862]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[17:27:58.862]         }
[17:27:58.862]         else {
[17:27:58.862]             ...future.result["stdout"] <- base::list(NULL)
[17:27:58.862]         }
[17:27:58.862]         base::close(...future.stdout)
[17:27:58.862]         ...future.stdout <- NULL
[17:27:58.862]     }
[17:27:58.862]     ...future.result$conditions <- ...future.conditions
[17:27:58.862]     ...future.result$finished <- base::Sys.time()
[17:27:58.862]     ...future.result
[17:27:58.862] }
[17:27:59.022] MultisessionFuture started
[17:27:59.023] result() for ClusterFuture ...
[17:27:59.023] receiveMessageFromWorker() for ClusterFuture ...
[17:27:59.024] - Validating connection of MultisessionFuture
[17:27:59.091] - received message: FutureResult
[17:27:59.092] - Received FutureResult
[17:27:59.097] - Erased future from FutureRegistry
[17:27:59.098] result() for ClusterFuture ...
[17:27:59.098] - result already collected: FutureResult
[17:27:59.098] result() for ClusterFuture ... done
[17:27:59.099] receiveMessageFromWorker() for ClusterFuture ... done
[17:27:59.099] result() for ClusterFuture ... done
[17:27:59.099] result() for ClusterFuture ...
[17:27:59.100] - result already collected: FutureResult
[17:27:59.100] result() for ClusterFuture ... done
[17:27:59.100] plan(): plan_init() of 'tweaked', 'multisession', 'cluster', 'multiprocess', 'future', 'function' ... DONE
[17:27:59.101] plan(): nbrOfWorkers() = 2
> 
> env <- new.env()
> 
> ## Create future #1 (consumes background process #1)
> env$a %<-% { 5 }
Warning in getGlobalsAndPackages(expr, envir = envir, tweak = tweakExpression,  :
  R option 'future.globals.resolve' may only be used for troubleshooting. It must not be used in production since it changes how futures are evaluated and there is a great risk that the results cannot be reproduced elsewhere: 'TRUE'
[17:27:59.103] getGlobalsAndPackages() ...
[17:27:59.104] Searching for globals...
[17:27:59.109] - globals found: [1] '{'
[17:27:59.110] Searching for globals ... DONE
[17:27:59.110] Resolving globals: TRUE
[17:27:59.110] Resolving any globals that are futures ...
[17:27:59.111] - globals: [1] '{'
[17:27:59.111] Resolving any globals that are futures ... DONE
[17:27:59.112] 
[17:27:59.112] 
[17:27:59.113] getGlobalsAndPackages() ... DONE
[17:27:59.113] run() for 'Future' ...
[17:27:59.114] - state: 'created'
[17:27:59.114] - Future backend: 'FutureStrategy', 'tweaked', 'multisession', 'cluster', 'multiprocess', 'future', 'function'
[17:27:59.131] - Future class: 'MultisessionFuture', 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
[17:27:59.132] - Copy elements of temporary 'MultisessionFuture' to final 'Future' object ...
[17:27:59.132]   - Field: 'node'
[17:27:59.132]   - Field: 'label'
[17:27:59.133]   - Field: 'local'
[17:27:59.133]   - Field: 'owner'
[17:27:59.133]   - Field: 'envir'
[17:27:59.134]   - Field: 'workers'
[17:27:59.134]   - Field: 'packages'
[17:27:59.134]   - Field: 'gc'
[17:27:59.134]   - Field: 'conditions'
[17:27:59.135]   - Field: 'persistent'
[17:27:59.135]   - Field: 'expr'
[17:27:59.135]   - Field: 'uuid'
[17:27:59.136]   - Field: 'seed'
[17:27:59.136]   - Field: 'version'
[17:27:59.136]   - Field: 'result'
[17:27:59.137]   - Field: 'asynchronous'
[17:27:59.137]   - Field: 'calls'
[17:27:59.138]   - Field: 'globals'
[17:27:59.138]   - Field: 'stdout'
[17:27:59.138]   - Field: 'earlySignal'
[17:27:59.139]   - Field: 'lazy'
[17:27:59.139]   - Field: 'state'
[17:27:59.139] - Copy elements of temporary 'MultisessionFuture' to final 'Future' object ... done
[17:27:59.139] - Launch lazy future ...
[17:27:59.140] Packages needed by the future expression (n = 0): <none>
[17:27:59.140] Packages needed by future strategies (n = 0): <none>
[17:27:59.141] {
[17:27:59.141]     {
[17:27:59.141]         {
[17:27:59.141]             ...future.startTime <- base::Sys.time()
[17:27:59.141]             {
[17:27:59.141]                 {
[17:27:59.141]                   {
[17:27:59.141]                     {
[17:27:59.141]                       base::local({
[17:27:59.141]                         has_future <- base::requireNamespace("future", 
[17:27:59.141]                           quietly = TRUE)
[17:27:59.141]                         if (has_future) {
[17:27:59.141]                           ns <- base::getNamespace("future")
[17:27:59.141]                           version <- ns[[".package"]][["version"]]
[17:27:59.141]                           if (is.null(version)) 
[17:27:59.141]                             version <- utils::packageVersion("future")
[17:27:59.141]                         }
[17:27:59.141]                         else {
[17:27:59.141]                           version <- NULL
[17:27:59.141]                         }
[17:27:59.141]                         if (!has_future || version < "1.8.0") {
[17:27:59.141]                           info <- base::c(r_version = base::gsub("R version ", 
[17:27:59.141]                             "", base::R.version$version.string), 
[17:27:59.141]                             platform = base::sprintf("%s (%s-bit)", 
[17:27:59.141]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[17:27:59.141]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[17:27:59.141]                               "release", "version")], collapse = " "), 
[17:27:59.141]                             hostname = base::Sys.info()[["nodename"]])
[17:27:59.141]                           info <- base::sprintf("%s: %s", base::names(info), 
[17:27:59.141]                             info)
[17:27:59.141]                           info <- base::paste(info, collapse = "; ")
[17:27:59.141]                           if (!has_future) {
[17:27:59.141]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[17:27:59.141]                               info)
[17:27:59.141]                           }
[17:27:59.141]                           else {
[17:27:59.141]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[17:27:59.141]                               info, version)
[17:27:59.141]                           }
[17:27:59.141]                           base::stop(msg)
[17:27:59.141]                         }
[17:27:59.141]                       })
[17:27:59.141]                     }
[17:27:59.141]                     ...future.mc.cores.old <- base::getOption("mc.cores")
[17:27:59.141]                     base::options(mc.cores = 1L)
[17:27:59.141]                   }
[17:27:59.141]                   ...future.strategy.old <- future::plan("list")
[17:27:59.141]                   options(future.plan = NULL)
[17:27:59.141]                   Sys.unsetenv("R_FUTURE_PLAN")
[17:27:59.141]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[17:27:59.141]                 }
[17:27:59.141]                 ...future.workdir <- getwd()
[17:27:59.141]             }
[17:27:59.141]             ...future.oldOptions <- base::as.list(base::.Options)
[17:27:59.141]             ...future.oldEnvVars <- base::Sys.getenv()
[17:27:59.141]         }
[17:27:59.141]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[17:27:59.141]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[17:27:59.141]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[17:27:59.141]             future.globals.resolve = TRUE, future.resolve.recursive = NULL, 
[17:27:59.141]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[17:27:59.141]             future.stdout.windows.reencode = NULL, width = 80L)
[17:27:59.141]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[17:27:59.141]             base::names(...future.oldOptions))
[17:27:59.141]     }
[17:27:59.141]     if (FALSE) {
[17:27:59.141]     }
[17:27:59.141]     else {
[17:27:59.141]         if (TRUE) {
[17:27:59.141]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[17:27:59.141]                 open = "w")
[17:27:59.141]         }
[17:27:59.141]         else {
[17:27:59.141]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[17:27:59.141]                 windows = "NUL", "/dev/null"), open = "w")
[17:27:59.141]         }
[17:27:59.141]         base::sink(...future.stdout, type = "output", split = FALSE)
[17:27:59.141]         base::on.exit(if (!base::is.null(...future.stdout)) {
[17:27:59.141]             base::sink(type = "output", split = FALSE)
[17:27:59.141]             base::close(...future.stdout)
[17:27:59.141]         }, add = TRUE)
[17:27:59.141]     }
[17:27:59.141]     ...future.frame <- base::sys.nframe()
[17:27:59.141]     ...future.conditions <- base::list()
[17:27:59.141]     ...future.rng <- base::globalenv()$.Random.seed
[17:27:59.141]     if (FALSE) {
[17:27:59.141]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[17:27:59.141]             "...future.value", "...future.globalenv.names", ".Random.seed")
[17:27:59.141]     }
[17:27:59.141]     ...future.result <- base::tryCatch({
[17:27:59.141]         base::withCallingHandlers({
[17:27:59.141]             ...future.value <- base::withVisible(base::local({
[17:27:59.141]                 ...future.makeSendCondition <- base::local({
[17:27:59.141]                   sendCondition <- NULL
[17:27:59.141]                   function(frame = 1L) {
[17:27:59.141]                     if (is.function(sendCondition)) 
[17:27:59.141]                       return(sendCondition)
[17:27:59.141]                     ns <- getNamespace("parallel")
[17:27:59.141]                     if (exists("sendData", mode = "function", 
[17:27:59.141]                       envir = ns)) {
[17:27:59.141]                       parallel_sendData <- get("sendData", mode = "function", 
[17:27:59.141]                         envir = ns)
[17:27:59.141]                       envir <- sys.frame(frame)
[17:27:59.141]                       master <- NULL
[17:27:59.141]                       while (!identical(envir, .GlobalEnv) && 
[17:27:59.141]                         !identical(envir, emptyenv())) {
[17:27:59.141]                         if (exists("master", mode = "list", envir = envir, 
[17:27:59.141]                           inherits = FALSE)) {
[17:27:59.141]                           master <- get("master", mode = "list", 
[17:27:59.141]                             envir = envir, inherits = FALSE)
[17:27:59.141]                           if (inherits(master, c("SOCKnode", 
[17:27:59.141]                             "SOCK0node"))) {
[17:27:59.141]                             sendCondition <<- function(cond) {
[17:27:59.141]                               data <- list(type = "VALUE", value = cond, 
[17:27:59.141]                                 success = TRUE)
[17:27:59.141]                               parallel_sendData(master, data)
[17:27:59.141]                             }
[17:27:59.141]                             return(sendCondition)
[17:27:59.141]                           }
[17:27:59.141]                         }
[17:27:59.141]                         frame <- frame + 1L
[17:27:59.141]                         envir <- sys.frame(frame)
[17:27:59.141]                       }
[17:27:59.141]                     }
[17:27:59.141]                     sendCondition <<- function(cond) NULL
[17:27:59.141]                   }
[17:27:59.141]                 })
[17:27:59.141]                 withCallingHandlers({
[17:27:59.141]                   {
[17:27:59.141]                     5
[17:27:59.141]                   }
[17:27:59.141]                 }, immediateCondition = function(cond) {
[17:27:59.141]                   sendCondition <- ...future.makeSendCondition()
[17:27:59.141]                   sendCondition(cond)
[17:27:59.141]                   muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:59.141]                   {
[17:27:59.141]                     inherits <- base::inherits
[17:27:59.141]                     invokeRestart <- base::invokeRestart
[17:27:59.141]                     is.null <- base::is.null
[17:27:59.141]                     muffled <- FALSE
[17:27:59.141]                     if (inherits(cond, "message")) {
[17:27:59.141]                       muffled <- grepl(pattern, "muffleMessage")
[17:27:59.141]                       if (muffled) 
[17:27:59.141]                         invokeRestart("muffleMessage")
[17:27:59.141]                     }
[17:27:59.141]                     else if (inherits(cond, "warning")) {
[17:27:59.141]                       muffled <- grepl(pattern, "muffleWarning")
[17:27:59.141]                       if (muffled) 
[17:27:59.141]                         invokeRestart("muffleWarning")
[17:27:59.141]                     }
[17:27:59.141]                     else if (inherits(cond, "condition")) {
[17:27:59.141]                       if (!is.null(pattern)) {
[17:27:59.141]                         computeRestarts <- base::computeRestarts
[17:27:59.141]                         grepl <- base::grepl
[17:27:59.141]                         restarts <- computeRestarts(cond)
[17:27:59.141]                         for (restart in restarts) {
[17:27:59.141]                           name <- restart$name
[17:27:59.141]                           if (is.null(name)) 
[17:27:59.141]                             next
[17:27:59.141]                           if (!grepl(pattern, name)) 
[17:27:59.141]                             next
[17:27:59.141]                           invokeRestart(restart)
[17:27:59.141]                           muffled <- TRUE
[17:27:59.141]                           break
[17:27:59.141]                         }
[17:27:59.141]                       }
[17:27:59.141]                     }
[17:27:59.141]                     invisible(muffled)
[17:27:59.141]                   }
[17:27:59.141]                   muffleCondition(cond)
[17:27:59.141]                 })
[17:27:59.141]             }))
[17:27:59.141]             future::FutureResult(value = ...future.value$value, 
[17:27:59.141]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[17:27:59.141]                   ...future.rng), globalenv = if (FALSE) 
[17:27:59.141]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[17:27:59.141]                     ...future.globalenv.names))
[17:27:59.141]                 else NULL, started = ...future.startTime, version = "1.8")
[17:27:59.141]         }, condition = base::local({
[17:27:59.141]             c <- base::c
[17:27:59.141]             inherits <- base::inherits
[17:27:59.141]             invokeRestart <- base::invokeRestart
[17:27:59.141]             length <- base::length
[17:27:59.141]             list <- base::list
[17:27:59.141]             seq.int <- base::seq.int
[17:27:59.141]             signalCondition <- base::signalCondition
[17:27:59.141]             sys.calls <- base::sys.calls
[17:27:59.141]             `[[` <- base::`[[`
[17:27:59.141]             `+` <- base::`+`
[17:27:59.141]             `<<-` <- base::`<<-`
[17:27:59.141]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[17:27:59.141]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[17:27:59.141]                   3L)]
[17:27:59.141]             }
[17:27:59.141]             function(cond) {
[17:27:59.141]                 is_error <- inherits(cond, "error")
[17:27:59.141]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[17:27:59.141]                   NULL)
[17:27:59.141]                 if (is_error) {
[17:27:59.141]                   sessionInformation <- function() {
[17:27:59.141]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[17:27:59.141]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[17:27:59.141]                       search = base::search(), system = base::Sys.info())
[17:27:59.141]                   }
[17:27:59.141]                   ...future.conditions[[length(...future.conditions) + 
[17:27:59.141]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[17:27:59.141]                     cond$call), session = sessionInformation(), 
[17:27:59.141]                     timestamp = base::Sys.time(), signaled = 0L)
[17:27:59.141]                   signalCondition(cond)
[17:27:59.141]                 }
[17:27:59.141]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[17:27:59.141]                 "immediateCondition"))) {
[17:27:59.141]                   signal <- TRUE && inherits(cond, "immediateCondition")
[17:27:59.141]                   ...future.conditions[[length(...future.conditions) + 
[17:27:59.141]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[17:27:59.141]                   if (TRUE && !signal) {
[17:27:59.141]                     muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:59.141]                     {
[17:27:59.141]                       inherits <- base::inherits
[17:27:59.141]                       invokeRestart <- base::invokeRestart
[17:27:59.141]                       is.null <- base::is.null
[17:27:59.141]                       muffled <- FALSE
[17:27:59.141]                       if (inherits(cond, "message")) {
[17:27:59.141]                         muffled <- grepl(pattern, "muffleMessage")
[17:27:59.141]                         if (muffled) 
[17:27:59.141]                           invokeRestart("muffleMessage")
[17:27:59.141]                       }
[17:27:59.141]                       else if (inherits(cond, "warning")) {
[17:27:59.141]                         muffled <- grepl(pattern, "muffleWarning")
[17:27:59.141]                         if (muffled) 
[17:27:59.141]                           invokeRestart("muffleWarning")
[17:27:59.141]                       }
[17:27:59.141]                       else if (inherits(cond, "condition")) {
[17:27:59.141]                         if (!is.null(pattern)) {
[17:27:59.141]                           computeRestarts <- base::computeRestarts
[17:27:59.141]                           grepl <- base::grepl
[17:27:59.141]                           restarts <- computeRestarts(cond)
[17:27:59.141]                           for (restart in restarts) {
[17:27:59.141]                             name <- restart$name
[17:27:59.141]                             if (is.null(name)) 
[17:27:59.141]                               next
[17:27:59.141]                             if (!grepl(pattern, name)) 
[17:27:59.141]                               next
[17:27:59.141]                             invokeRestart(restart)
[17:27:59.141]                             muffled <- TRUE
[17:27:59.141]                             break
[17:27:59.141]                           }
[17:27:59.141]                         }
[17:27:59.141]                       }
[17:27:59.141]                       invisible(muffled)
[17:27:59.141]                     }
[17:27:59.141]                     muffleCondition(cond, pattern = "^muffle")
[17:27:59.141]                   }
[17:27:59.141]                 }
[17:27:59.141]                 else {
[17:27:59.141]                   if (TRUE) {
[17:27:59.141]                     muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:59.141]                     {
[17:27:59.141]                       inherits <- base::inherits
[17:27:59.141]                       invokeRestart <- base::invokeRestart
[17:27:59.141]                       is.null <- base::is.null
[17:27:59.141]                       muffled <- FALSE
[17:27:59.141]                       if (inherits(cond, "message")) {
[17:27:59.141]                         muffled <- grepl(pattern, "muffleMessage")
[17:27:59.141]                         if (muffled) 
[17:27:59.141]                           invokeRestart("muffleMessage")
[17:27:59.141]                       }
[17:27:59.141]                       else if (inherits(cond, "warning")) {
[17:27:59.141]                         muffled <- grepl(pattern, "muffleWarning")
[17:27:59.141]                         if (muffled) 
[17:27:59.141]                           invokeRestart("muffleWarning")
[17:27:59.141]                       }
[17:27:59.141]                       else if (inherits(cond, "condition")) {
[17:27:59.141]                         if (!is.null(pattern)) {
[17:27:59.141]                           computeRestarts <- base::computeRestarts
[17:27:59.141]                           grepl <- base::grepl
[17:27:59.141]                           restarts <- computeRestarts(cond)
[17:27:59.141]                           for (restart in restarts) {
[17:27:59.141]                             name <- restart$name
[17:27:59.141]                             if (is.null(name)) 
[17:27:59.141]                               next
[17:27:59.141]                             if (!grepl(pattern, name)) 
[17:27:59.141]                               next
[17:27:59.141]                             invokeRestart(restart)
[17:27:59.141]                             muffled <- TRUE
[17:27:59.141]                             break
[17:27:59.141]                           }
[17:27:59.141]                         }
[17:27:59.141]                       }
[17:27:59.141]                       invisible(muffled)
[17:27:59.141]                     }
[17:27:59.141]                     muffleCondition(cond, pattern = "^muffle")
[17:27:59.141]                   }
[17:27:59.141]                 }
[17:27:59.141]             }
[17:27:59.141]         }))
[17:27:59.141]     }, error = function(ex) {
[17:27:59.141]         base::structure(base::list(value = NULL, visible = NULL, 
[17:27:59.141]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[17:27:59.141]                 ...future.rng), started = ...future.startTime, 
[17:27:59.141]             finished = Sys.time(), session_uuid = NA_character_, 
[17:27:59.141]             version = "1.8"), class = "FutureResult")
[17:27:59.141]     }, finally = {
[17:27:59.141]         if (!identical(...future.workdir, getwd())) 
[17:27:59.141]             setwd(...future.workdir)
[17:27:59.141]         {
[17:27:59.141]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[17:27:59.141]                 ...future.oldOptions$nwarnings <- NULL
[17:27:59.141]             }
[17:27:59.141]             base::options(...future.oldOptions)
[17:27:59.141]             if (.Platform$OS.type == "windows") {
[17:27:59.141]                 old_names <- names(...future.oldEnvVars)
[17:27:59.141]                 envs <- base::Sys.getenv()
[17:27:59.141]                 names <- names(envs)
[17:27:59.141]                 common <- intersect(names, old_names)
[17:27:59.141]                 added <- setdiff(names, old_names)
[17:27:59.141]                 removed <- setdiff(old_names, names)
[17:27:59.141]                 changed <- common[...future.oldEnvVars[common] != 
[17:27:59.141]                   envs[common]]
[17:27:59.141]                 NAMES <- toupper(changed)
[17:27:59.141]                 args <- list()
[17:27:59.141]                 for (kk in seq_along(NAMES)) {
[17:27:59.141]                   name <- changed[[kk]]
[17:27:59.141]                   NAME <- NAMES[[kk]]
[17:27:59.141]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:59.141]                     next
[17:27:59.141]                   args[[name]] <- ...future.oldEnvVars[[name]]
[17:27:59.141]                 }
[17:27:59.141]                 NAMES <- toupper(added)
[17:27:59.141]                 for (kk in seq_along(NAMES)) {
[17:27:59.141]                   name <- added[[kk]]
[17:27:59.141]                   NAME <- NAMES[[kk]]
[17:27:59.141]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:59.141]                     next
[17:27:59.141]                   args[[name]] <- ""
[17:27:59.141]                 }
[17:27:59.141]                 NAMES <- toupper(removed)
[17:27:59.141]                 for (kk in seq_along(NAMES)) {
[17:27:59.141]                   name <- removed[[kk]]
[17:27:59.141]                   NAME <- NAMES[[kk]]
[17:27:59.141]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:59.141]                     next
[17:27:59.141]                   args[[name]] <- ...future.oldEnvVars[[name]]
[17:27:59.141]                 }
[17:27:59.141]                 if (length(args) > 0) 
[17:27:59.141]                   base::do.call(base::Sys.setenv, args = args)
[17:27:59.141]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[17:27:59.141]             }
[17:27:59.141]             else {
[17:27:59.141]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[17:27:59.141]             }
[17:27:59.141]             {
[17:27:59.141]                 if (base::length(...future.futureOptionsAdded) > 
[17:27:59.141]                   0L) {
[17:27:59.141]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[17:27:59.141]                   base::names(opts) <- ...future.futureOptionsAdded
[17:27:59.141]                   base::options(opts)
[17:27:59.141]                 }
[17:27:59.141]                 {
[17:27:59.141]                   {
[17:27:59.141]                     base::options(mc.cores = ...future.mc.cores.old)
[17:27:59.141]                     NULL
[17:27:59.141]                   }
[17:27:59.141]                   options(future.plan = NULL)
[17:27:59.141]                   if (is.na(NA_character_)) 
[17:27:59.141]                     Sys.unsetenv("R_FUTURE_PLAN")
[17:27:59.141]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[17:27:59.141]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[17:27:59.141]                     .init = FALSE)
[17:27:59.141]                 }
[17:27:59.141]             }
[17:27:59.141]         }
[17:27:59.141]     })
[17:27:59.141]     if (TRUE) {
[17:27:59.141]         base::sink(type = "output", split = FALSE)
[17:27:59.141]         if (TRUE) {
[17:27:59.141]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[17:27:59.141]         }
[17:27:59.141]         else {
[17:27:59.141]             ...future.result["stdout"] <- base::list(NULL)
[17:27:59.141]         }
[17:27:59.141]         base::close(...future.stdout)
[17:27:59.141]         ...future.stdout <- NULL
[17:27:59.141]     }
[17:27:59.141]     ...future.result$conditions <- ...future.conditions
[17:27:59.141]     ...future.result$finished <- base::Sys.time()
[17:27:59.141]     ...future.result
[17:27:59.141] }
[17:27:59.153] MultisessionFuture started
[17:27:59.153] - Launch lazy future ... done
[17:27:59.154] run() for 'MultisessionFuture' ... done
> 
> ## Create future #2 (consumes background process #2)
> b %<-% { "a" }
Warning in getGlobalsAndPackages(expr, envir = envir, tweak = tweakExpression,  :
  R option 'future.globals.resolve' may only be used for troubleshooting. It must not be used in production since it changes how futures are evaluated and there is a great risk that the results cannot be reproduced elsewhere: 'TRUE'
[17:27:59.155] getGlobalsAndPackages() ...
[17:27:59.155] Searching for globals...
[17:27:59.157] - globals found: [1] '{'
[17:27:59.157] Searching for globals ... DONE
[17:27:59.157] Resolving globals: TRUE
[17:27:59.158] Resolving any globals that are futures ...
[17:27:59.158] - globals: [1] '{'
[17:27:59.158] Resolving any globals that are futures ... DONE
[17:27:59.159] 
[17:27:59.159] 
[17:27:59.159] getGlobalsAndPackages() ... DONE
[17:27:59.160] run() for 'Future' ...
[17:27:59.160] - state: 'created'
[17:27:59.161] - Future backend: 'FutureStrategy', 'tweaked', 'multisession', 'cluster', 'multiprocess', 'future', 'function'
[17:27:59.178] - Future class: 'MultisessionFuture', 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
[17:27:59.178] - Copy elements of temporary 'MultisessionFuture' to final 'Future' object ...
[17:27:59.179]   - Field: 'node'
[17:27:59.179]   - Field: 'label'
[17:27:59.179]   - Field: 'local'
[17:27:59.180]   - Field: 'owner'
[17:27:59.180]   - Field: 'envir'
[17:27:59.180]   - Field: 'workers'
[17:27:59.181]   - Field: 'packages'
[17:27:59.181]   - Field: 'gc'
[17:27:59.181]   - Field: 'conditions'
[17:27:59.182]   - Field: 'persistent'
[17:27:59.182]   - Field: 'expr'
[17:27:59.182]   - Field: 'uuid'
[17:27:59.183]   - Field: 'seed'
[17:27:59.183]   - Field: 'version'
[17:27:59.183]   - Field: 'result'
[17:27:59.184]   - Field: 'asynchronous'
[17:27:59.184]   - Field: 'calls'
[17:27:59.185]   - Field: 'globals'
[17:27:59.185]   - Field: 'stdout'
[17:27:59.185]   - Field: 'earlySignal'
[17:27:59.186]   - Field: 'lazy'
[17:27:59.186]   - Field: 'state'
[17:27:59.186] - Copy elements of temporary 'MultisessionFuture' to final 'Future' object ... done
[17:27:59.187] - Launch lazy future ...
[17:27:59.187] Packages needed by the future expression (n = 0): <none>
[17:27:59.188] Packages needed by future strategies (n = 0): <none>
[17:27:59.189] {
[17:27:59.189]     {
[17:27:59.189]         {
[17:27:59.189]             ...future.startTime <- base::Sys.time()
[17:27:59.189]             {
[17:27:59.189]                 {
[17:27:59.189]                   {
[17:27:59.189]                     {
[17:27:59.189]                       base::local({
[17:27:59.189]                         has_future <- base::requireNamespace("future", 
[17:27:59.189]                           quietly = TRUE)
[17:27:59.189]                         if (has_future) {
[17:27:59.189]                           ns <- base::getNamespace("future")
[17:27:59.189]                           version <- ns[[".package"]][["version"]]
[17:27:59.189]                           if (is.null(version)) 
[17:27:59.189]                             version <- utils::packageVersion("future")
[17:27:59.189]                         }
[17:27:59.189]                         else {
[17:27:59.189]                           version <- NULL
[17:27:59.189]                         }
[17:27:59.189]                         if (!has_future || version < "1.8.0") {
[17:27:59.189]                           info <- base::c(r_version = base::gsub("R version ", 
[17:27:59.189]                             "", base::R.version$version.string), 
[17:27:59.189]                             platform = base::sprintf("%s (%s-bit)", 
[17:27:59.189]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[17:27:59.189]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[17:27:59.189]                               "release", "version")], collapse = " "), 
[17:27:59.189]                             hostname = base::Sys.info()[["nodename"]])
[17:27:59.189]                           info <- base::sprintf("%s: %s", base::names(info), 
[17:27:59.189]                             info)
[17:27:59.189]                           info <- base::paste(info, collapse = "; ")
[17:27:59.189]                           if (!has_future) {
[17:27:59.189]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[17:27:59.189]                               info)
[17:27:59.189]                           }
[17:27:59.189]                           else {
[17:27:59.189]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[17:27:59.189]                               info, version)
[17:27:59.189]                           }
[17:27:59.189]                           base::stop(msg)
[17:27:59.189]                         }
[17:27:59.189]                       })
[17:27:59.189]                     }
[17:27:59.189]                     ...future.mc.cores.old <- base::getOption("mc.cores")
[17:27:59.189]                     base::options(mc.cores = 1L)
[17:27:59.189]                   }
[17:27:59.189]                   ...future.strategy.old <- future::plan("list")
[17:27:59.189]                   options(future.plan = NULL)
[17:27:59.189]                   Sys.unsetenv("R_FUTURE_PLAN")
[17:27:59.189]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[17:27:59.189]                 }
[17:27:59.189]                 ...future.workdir <- getwd()
[17:27:59.189]             }
[17:27:59.189]             ...future.oldOptions <- base::as.list(base::.Options)
[17:27:59.189]             ...future.oldEnvVars <- base::Sys.getenv()
[17:27:59.189]         }
[17:27:59.189]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[17:27:59.189]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[17:27:59.189]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[17:27:59.189]             future.globals.resolve = TRUE, future.resolve.recursive = NULL, 
[17:27:59.189]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[17:27:59.189]             future.stdout.windows.reencode = NULL, width = 80L)
[17:27:59.189]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[17:27:59.189]             base::names(...future.oldOptions))
[17:27:59.189]     }
[17:27:59.189]     if (FALSE) {
[17:27:59.189]     }
[17:27:59.189]     else {
[17:27:59.189]         if (TRUE) {
[17:27:59.189]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[17:27:59.189]                 open = "w")
[17:27:59.189]         }
[17:27:59.189]         else {
[17:27:59.189]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[17:27:59.189]                 windows = "NUL", "/dev/null"), open = "w")
[17:27:59.189]         }
[17:27:59.189]         base::sink(...future.stdout, type = "output", split = FALSE)
[17:27:59.189]         base::on.exit(if (!base::is.null(...future.stdout)) {
[17:27:59.189]             base::sink(type = "output", split = FALSE)
[17:27:59.189]             base::close(...future.stdout)
[17:27:59.189]         }, add = TRUE)
[17:27:59.189]     }
[17:27:59.189]     ...future.frame <- base::sys.nframe()
[17:27:59.189]     ...future.conditions <- base::list()
[17:27:59.189]     ...future.rng <- base::globalenv()$.Random.seed
[17:27:59.189]     if (FALSE) {
[17:27:59.189]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[17:27:59.189]             "...future.value", "...future.globalenv.names", ".Random.seed")
[17:27:59.189]     }
[17:27:59.189]     ...future.result <- base::tryCatch({
[17:27:59.189]         base::withCallingHandlers({
[17:27:59.189]             ...future.value <- base::withVisible(base::local({
[17:27:59.189]                 ...future.makeSendCondition <- base::local({
[17:27:59.189]                   sendCondition <- NULL
[17:27:59.189]                   function(frame = 1L) {
[17:27:59.189]                     if (is.function(sendCondition)) 
[17:27:59.189]                       return(sendCondition)
[17:27:59.189]                     ns <- getNamespace("parallel")
[17:27:59.189]                     if (exists("sendData", mode = "function", 
[17:27:59.189]                       envir = ns)) {
[17:27:59.189]                       parallel_sendData <- get("sendData", mode = "function", 
[17:27:59.189]                         envir = ns)
[17:27:59.189]                       envir <- sys.frame(frame)
[17:27:59.189]                       master <- NULL
[17:27:59.189]                       while (!identical(envir, .GlobalEnv) && 
[17:27:59.189]                         !identical(envir, emptyenv())) {
[17:27:59.189]                         if (exists("master", mode = "list", envir = envir, 
[17:27:59.189]                           inherits = FALSE)) {
[17:27:59.189]                           master <- get("master", mode = "list", 
[17:27:59.189]                             envir = envir, inherits = FALSE)
[17:27:59.189]                           if (inherits(master, c("SOCKnode", 
[17:27:59.189]                             "SOCK0node"))) {
[17:27:59.189]                             sendCondition <<- function(cond) {
[17:27:59.189]                               data <- list(type = "VALUE", value = cond, 
[17:27:59.189]                                 success = TRUE)
[17:27:59.189]                               parallel_sendData(master, data)
[17:27:59.189]                             }
[17:27:59.189]                             return(sendCondition)
[17:27:59.189]                           }
[17:27:59.189]                         }
[17:27:59.189]                         frame <- frame + 1L
[17:27:59.189]                         envir <- sys.frame(frame)
[17:27:59.189]                       }
[17:27:59.189]                     }
[17:27:59.189]                     sendCondition <<- function(cond) NULL
[17:27:59.189]                   }
[17:27:59.189]                 })
[17:27:59.189]                 withCallingHandlers({
[17:27:59.189]                   {
[17:27:59.189]                     "a"
[17:27:59.189]                   }
[17:27:59.189]                 }, immediateCondition = function(cond) {
[17:27:59.189]                   sendCondition <- ...future.makeSendCondition()
[17:27:59.189]                   sendCondition(cond)
[17:27:59.189]                   muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:59.189]                   {
[17:27:59.189]                     inherits <- base::inherits
[17:27:59.189]                     invokeRestart <- base::invokeRestart
[17:27:59.189]                     is.null <- base::is.null
[17:27:59.189]                     muffled <- FALSE
[17:27:59.189]                     if (inherits(cond, "message")) {
[17:27:59.189]                       muffled <- grepl(pattern, "muffleMessage")
[17:27:59.189]                       if (muffled) 
[17:27:59.189]                         invokeRestart("muffleMessage")
[17:27:59.189]                     }
[17:27:59.189]                     else if (inherits(cond, "warning")) {
[17:27:59.189]                       muffled <- grepl(pattern, "muffleWarning")
[17:27:59.189]                       if (muffled) 
[17:27:59.189]                         invokeRestart("muffleWarning")
[17:27:59.189]                     }
[17:27:59.189]                     else if (inherits(cond, "condition")) {
[17:27:59.189]                       if (!is.null(pattern)) {
[17:27:59.189]                         computeRestarts <- base::computeRestarts
[17:27:59.189]                         grepl <- base::grepl
[17:27:59.189]                         restarts <- computeRestarts(cond)
[17:27:59.189]                         for (restart in restarts) {
[17:27:59.189]                           name <- restart$name
[17:27:59.189]                           if (is.null(name)) 
[17:27:59.189]                             next
[17:27:59.189]                           if (!grepl(pattern, name)) 
[17:27:59.189]                             next
[17:27:59.189]                           invokeRestart(restart)
[17:27:59.189]                           muffled <- TRUE
[17:27:59.189]                           break
[17:27:59.189]                         }
[17:27:59.189]                       }
[17:27:59.189]                     }
[17:27:59.189]                     invisible(muffled)
[17:27:59.189]                   }
[17:27:59.189]                   muffleCondition(cond)
[17:27:59.189]                 })
[17:27:59.189]             }))
[17:27:59.189]             future::FutureResult(value = ...future.value$value, 
[17:27:59.189]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[17:27:59.189]                   ...future.rng), globalenv = if (FALSE) 
[17:27:59.189]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[17:27:59.189]                     ...future.globalenv.names))
[17:27:59.189]                 else NULL, started = ...future.startTime, version = "1.8")
[17:27:59.189]         }, condition = base::local({
[17:27:59.189]             c <- base::c
[17:27:59.189]             inherits <- base::inherits
[17:27:59.189]             invokeRestart <- base::invokeRestart
[17:27:59.189]             length <- base::length
[17:27:59.189]             list <- base::list
[17:27:59.189]             seq.int <- base::seq.int
[17:27:59.189]             signalCondition <- base::signalCondition
[17:27:59.189]             sys.calls <- base::sys.calls
[17:27:59.189]             `[[` <- base::`[[`
[17:27:59.189]             `+` <- base::`+`
[17:27:59.189]             `<<-` <- base::`<<-`
[17:27:59.189]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[17:27:59.189]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[17:27:59.189]                   3L)]
[17:27:59.189]             }
[17:27:59.189]             function(cond) {
[17:27:59.189]                 is_error <- inherits(cond, "error")
[17:27:59.189]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[17:27:59.189]                   NULL)
[17:27:59.189]                 if (is_error) {
[17:27:59.189]                   sessionInformation <- function() {
[17:27:59.189]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[17:27:59.189]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[17:27:59.189]                       search = base::search(), system = base::Sys.info())
[17:27:59.189]                   }
[17:27:59.189]                   ...future.conditions[[length(...future.conditions) + 
[17:27:59.189]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[17:27:59.189]                     cond$call), session = sessionInformation(), 
[17:27:59.189]                     timestamp = base::Sys.time(), signaled = 0L)
[17:27:59.189]                   signalCondition(cond)
[17:27:59.189]                 }
[17:27:59.189]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[17:27:59.189]                 "immediateCondition"))) {
[17:27:59.189]                   signal <- TRUE && inherits(cond, "immediateCondition")
[17:27:59.189]                   ...future.conditions[[length(...future.conditions) + 
[17:27:59.189]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[17:27:59.189]                   if (TRUE && !signal) {
[17:27:59.189]                     muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:59.189]                     {
[17:27:59.189]                       inherits <- base::inherits
[17:27:59.189]                       invokeRestart <- base::invokeRestart
[17:27:59.189]                       is.null <- base::is.null
[17:27:59.189]                       muffled <- FALSE
[17:27:59.189]                       if (inherits(cond, "message")) {
[17:27:59.189]                         muffled <- grepl(pattern, "muffleMessage")
[17:27:59.189]                         if (muffled) 
[17:27:59.189]                           invokeRestart("muffleMessage")
[17:27:59.189]                       }
[17:27:59.189]                       else if (inherits(cond, "warning")) {
[17:27:59.189]                         muffled <- grepl(pattern, "muffleWarning")
[17:27:59.189]                         if (muffled) 
[17:27:59.189]                           invokeRestart("muffleWarning")
[17:27:59.189]                       }
[17:27:59.189]                       else if (inherits(cond, "condition")) {
[17:27:59.189]                         if (!is.null(pattern)) {
[17:27:59.189]                           computeRestarts <- base::computeRestarts
[17:27:59.189]                           grepl <- base::grepl
[17:27:59.189]                           restarts <- computeRestarts(cond)
[17:27:59.189]                           for (restart in restarts) {
[17:27:59.189]                             name <- restart$name
[17:27:59.189]                             if (is.null(name)) 
[17:27:59.189]                               next
[17:27:59.189]                             if (!grepl(pattern, name)) 
[17:27:59.189]                               next
[17:27:59.189]                             invokeRestart(restart)
[17:27:59.189]                             muffled <- TRUE
[17:27:59.189]                             break
[17:27:59.189]                           }
[17:27:59.189]                         }
[17:27:59.189]                       }
[17:27:59.189]                       invisible(muffled)
[17:27:59.189]                     }
[17:27:59.189]                     muffleCondition(cond, pattern = "^muffle")
[17:27:59.189]                   }
[17:27:59.189]                 }
[17:27:59.189]                 else {
[17:27:59.189]                   if (TRUE) {
[17:27:59.189]                     muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:59.189]                     {
[17:27:59.189]                       inherits <- base::inherits
[17:27:59.189]                       invokeRestart <- base::invokeRestart
[17:27:59.189]                       is.null <- base::is.null
[17:27:59.189]                       muffled <- FALSE
[17:27:59.189]                       if (inherits(cond, "message")) {
[17:27:59.189]                         muffled <- grepl(pattern, "muffleMessage")
[17:27:59.189]                         if (muffled) 
[17:27:59.189]                           invokeRestart("muffleMessage")
[17:27:59.189]                       }
[17:27:59.189]                       else if (inherits(cond, "warning")) {
[17:27:59.189]                         muffled <- grepl(pattern, "muffleWarning")
[17:27:59.189]                         if (muffled) 
[17:27:59.189]                           invokeRestart("muffleWarning")
[17:27:59.189]                       }
[17:27:59.189]                       else if (inherits(cond, "condition")) {
[17:27:59.189]                         if (!is.null(pattern)) {
[17:27:59.189]                           computeRestarts <- base::computeRestarts
[17:27:59.189]                           grepl <- base::grepl
[17:27:59.189]                           restarts <- computeRestarts(cond)
[17:27:59.189]                           for (restart in restarts) {
[17:27:59.189]                             name <- restart$name
[17:27:59.189]                             if (is.null(name)) 
[17:27:59.189]                               next
[17:27:59.189]                             if (!grepl(pattern, name)) 
[17:27:59.189]                               next
[17:27:59.189]                             invokeRestart(restart)
[17:27:59.189]                             muffled <- TRUE
[17:27:59.189]                             break
[17:27:59.189]                           }
[17:27:59.189]                         }
[17:27:59.189]                       }
[17:27:59.189]                       invisible(muffled)
[17:27:59.189]                     }
[17:27:59.189]                     muffleCondition(cond, pattern = "^muffle")
[17:27:59.189]                   }
[17:27:59.189]                 }
[17:27:59.189]             }
[17:27:59.189]         }))
[17:27:59.189]     }, error = function(ex) {
[17:27:59.189]         base::structure(base::list(value = NULL, visible = NULL, 
[17:27:59.189]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[17:27:59.189]                 ...future.rng), started = ...future.startTime, 
[17:27:59.189]             finished = Sys.time(), session_uuid = NA_character_, 
[17:27:59.189]             version = "1.8"), class = "FutureResult")
[17:27:59.189]     }, finally = {
[17:27:59.189]         if (!identical(...future.workdir, getwd())) 
[17:27:59.189]             setwd(...future.workdir)
[17:27:59.189]         {
[17:27:59.189]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[17:27:59.189]                 ...future.oldOptions$nwarnings <- NULL
[17:27:59.189]             }
[17:27:59.189]             base::options(...future.oldOptions)
[17:27:59.189]             if (.Platform$OS.type == "windows") {
[17:27:59.189]                 old_names <- names(...future.oldEnvVars)
[17:27:59.189]                 envs <- base::Sys.getenv()
[17:27:59.189]                 names <- names(envs)
[17:27:59.189]                 common <- intersect(names, old_names)
[17:27:59.189]                 added <- setdiff(names, old_names)
[17:27:59.189]                 removed <- setdiff(old_names, names)
[17:27:59.189]                 changed <- common[...future.oldEnvVars[common] != 
[17:27:59.189]                   envs[common]]
[17:27:59.189]                 NAMES <- toupper(changed)
[17:27:59.189]                 args <- list()
[17:27:59.189]                 for (kk in seq_along(NAMES)) {
[17:27:59.189]                   name <- changed[[kk]]
[17:27:59.189]                   NAME <- NAMES[[kk]]
[17:27:59.189]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:59.189]                     next
[17:27:59.189]                   args[[name]] <- ...future.oldEnvVars[[name]]
[17:27:59.189]                 }
[17:27:59.189]                 NAMES <- toupper(added)
[17:27:59.189]                 for (kk in seq_along(NAMES)) {
[17:27:59.189]                   name <- added[[kk]]
[17:27:59.189]                   NAME <- NAMES[[kk]]
[17:27:59.189]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:59.189]                     next
[17:27:59.189]                   args[[name]] <- ""
[17:27:59.189]                 }
[17:27:59.189]                 NAMES <- toupper(removed)
[17:27:59.189]                 for (kk in seq_along(NAMES)) {
[17:27:59.189]                   name <- removed[[kk]]
[17:27:59.189]                   NAME <- NAMES[[kk]]
[17:27:59.189]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:59.189]                     next
[17:27:59.189]                   args[[name]] <- ...future.oldEnvVars[[name]]
[17:27:59.189]                 }
[17:27:59.189]                 if (length(args) > 0) 
[17:27:59.189]                   base::do.call(base::Sys.setenv, args = args)
[17:27:59.189]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[17:27:59.189]             }
[17:27:59.189]             else {
[17:27:59.189]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[17:27:59.189]             }
[17:27:59.189]             {
[17:27:59.189]                 if (base::length(...future.futureOptionsAdded) > 
[17:27:59.189]                   0L) {
[17:27:59.189]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[17:27:59.189]                   base::names(opts) <- ...future.futureOptionsAdded
[17:27:59.189]                   base::options(opts)
[17:27:59.189]                 }
[17:27:59.189]                 {
[17:27:59.189]                   {
[17:27:59.189]                     base::options(mc.cores = ...future.mc.cores.old)
[17:27:59.189]                     NULL
[17:27:59.189]                   }
[17:27:59.189]                   options(future.plan = NULL)
[17:27:59.189]                   if (is.na(NA_character_)) 
[17:27:59.189]                     Sys.unsetenv("R_FUTURE_PLAN")
[17:27:59.189]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[17:27:59.189]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[17:27:59.189]                     .init = FALSE)
[17:27:59.189]                 }
[17:27:59.189]             }
[17:27:59.189]         }
[17:27:59.189]     })
[17:27:59.189]     if (TRUE) {
[17:27:59.189]         base::sink(type = "output", split = FALSE)
[17:27:59.189]         if (TRUE) {
[17:27:59.189]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[17:27:59.189]         }
[17:27:59.189]         else {
[17:27:59.189]             ...future.result["stdout"] <- base::list(NULL)
[17:27:59.189]         }
[17:27:59.189]         base::close(...future.stdout)
[17:27:59.189]         ...future.stdout <- NULL
[17:27:59.189]     }
[17:27:59.189]     ...future.result$conditions <- ...future.conditions
[17:27:59.189]     ...future.result$finished <- base::Sys.time()
[17:27:59.189]     ...future.result
[17:27:59.189] }
[17:27:59.331] MultisessionFuture started
[17:27:59.331] - Launch lazy future ... done
[17:27:59.331] run() for 'MultisessionFuture' ... done
> 
> ## Resolve future #2 (frees up background process #2)
> message(sprintf("b = %s\n", sQuote(b)))
[17:27:59.332] result() for ClusterFuture ...
[17:27:59.332] receiveMessageFromWorker() for ClusterFuture ...
[17:27:59.333] - Validating connection of MultisessionFuture
[17:27:59.427] - received message: FutureResult
[17:27:59.428] - Received FutureResult
[17:27:59.428] - Erased future from FutureRegistry
[17:27:59.429] result() for ClusterFuture ...
[17:27:59.429] - result already collected: FutureResult
[17:27:59.429] result() for ClusterFuture ... done
[17:27:59.429] receiveMessageFromWorker() for ClusterFuture ... done
[17:27:59.430] result() for ClusterFuture ... done
[17:27:59.430] result() for ClusterFuture ...
[17:27:59.430] - result already collected: FutureResult
[17:27:59.430] result() for ClusterFuture ... done
b = 'a'

> 
> ## Create future #3 (consumes background process #2)
> ## THIS IS THE TRICKY PART:
> ## Two globals are identified `env` and `b` and both are resolved.
> ## However, object `env[[b]]` (here element `a` of environment `env`)
> ## is not touched and therefore not resolved (since it is a future)
> ## unless environment `env` is resolved recursively. (Issue #49)
> y %<-% { env[[b]] }
Warning in getGlobalsAndPackages(expr, envir = envir, tweak = tweakExpression,  :
  R option 'future.globals.resolve' may only be used for troubleshooting. It must not be used in production since it changes how futures are evaluated and there is a great risk that the results cannot be reproduced elsewhere: 'TRUE'
[17:27:59.432] getGlobalsAndPackages() ...
[17:27:59.432] Searching for globals...
[17:27:59.444] - globals found: [4] '{', '[[', 'env', 'b'
[17:27:59.445] Searching for globals ... DONE
[17:27:59.445] Resolving globals: TRUE
[17:27:59.445] Resolving any globals that are futures ...
[17:27:59.445] - globals: [4] '{', '[[', 'env', 'b'
[17:27:59.445] Resolving any globals that are futures ... DONE
[17:27:59.446] Resolving futures part of globals (recursively) ...
[17:27:59.447] resolve() on list ...
[17:27:59.447]  recursive: 99
[17:27:59.448]  length: 2
[17:27:59.448]  elements: 'env', 'b'
[17:27:59.449] resolve() on environment ...
[17:27:59.449]  recursive: 98
[17:27:59.450]  elements: [1] '.future_a', 'a'
[17:27:59.451] receiveMessageFromWorker() for ClusterFuture ...
[17:27:59.451] - Validating connection of MultisessionFuture
[17:27:59.452] - received message: FutureResult
[17:27:59.452] - Received FutureResult
[17:27:59.452] - Erased future from FutureRegistry
[17:27:59.453] result() for ClusterFuture ...
[17:27:59.453] - result already collected: FutureResult
[17:27:59.453] result() for ClusterFuture ... done
[17:27:59.453] receiveMessageFromWorker() for ClusterFuture ... done
[17:27:59.454] Future #1
[17:27:59.454] result() for ClusterFuture ...
[17:27:59.454] - result already collected: FutureResult
[17:27:59.455] result() for ClusterFuture ... done
[17:27:59.455] result() for ClusterFuture ...
[17:27:59.455] - result already collected: FutureResult
[17:27:59.456] result() for ClusterFuture ... done
[17:27:59.456] A MultisessionFuture was resolved
[17:27:59.456]  length: 0 (resolved future 1)
[17:27:59.457] resolve() on environment ... DONE
[17:27:59.457]  length: 1 (resolved future 1)
[17:27:59.457]  length: 0 (resolved future 2)
[17:27:59.458] resolve() on list ... DONE
[17:27:59.458] - globals: [2] 'env', 'b'
[17:27:59.458] Resolving futures part of globals (recursively) ... DONE
[17:27:59.472] The total size of the 2 globals is 326.96 KiB (334807 bytes)
[17:27:59.473] The total size of the 2 globals exported for future expression ('{; env[[b]]; }') is 326.96 KiB.. This exceeds the maximum allowed size of 500.00 MiB (option 'future.globals.maxSize'). There are two globals: 'env' (326.92 KiB of class 'environment') and 'b' (40 bytes of class 'character')
[17:27:59.473] - globals: [2] 'env', 'b'
[17:27:59.474] 
[17:27:59.474] getGlobalsAndPackages() ... DONE
[17:27:59.474] run() for 'Future' ...
[17:27:59.475] - state: 'created'
[17:27:59.475] - Future backend: 'FutureStrategy', 'tweaked', 'multisession', 'cluster', 'multiprocess', 'future', 'function'
[17:27:59.490] - Future class: 'MultisessionFuture', 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
[17:27:59.491] - Copy elements of temporary 'MultisessionFuture' to final 'Future' object ...
[17:27:59.491]   - Field: 'node'
[17:27:59.491]   - Field: 'label'
[17:27:59.492]   - Field: 'local'
[17:27:59.492]   - Field: 'owner'
[17:27:59.492]   - Field: 'envir'
[17:27:59.492]   - Field: 'workers'
[17:27:59.492]   - Field: 'packages'
[17:27:59.492]   - Field: 'gc'
[17:27:59.493]   - Field: 'conditions'
[17:27:59.493]   - Field: 'persistent'
[17:27:59.493]   - Field: 'expr'
[17:27:59.493]   - Field: 'uuid'
[17:27:59.493]   - Field: 'seed'
[17:27:59.494]   - Field: 'version'
[17:27:59.494]   - Field: 'result'
[17:27:59.494]   - Field: 'asynchronous'
[17:27:59.494]   - Field: 'calls'
[17:27:59.494]   - Field: 'globals'
[17:27:59.494]   - Field: 'stdout'
[17:27:59.495]   - Field: 'earlySignal'
[17:27:59.495]   - Field: 'lazy'
[17:27:59.495]   - Field: 'state'
[17:27:59.495] - Copy elements of temporary 'MultisessionFuture' to final 'Future' object ... done
[17:27:59.495] - Launch lazy future ...
[17:27:59.496] Packages needed by the future expression (n = 0): <none>
[17:27:59.496] Packages needed by future strategies (n = 0): <none>
[17:27:59.497] {
[17:27:59.497]     {
[17:27:59.497]         {
[17:27:59.497]             ...future.startTime <- base::Sys.time()
[17:27:59.497]             {
[17:27:59.497]                 {
[17:27:59.497]                   {
[17:27:59.497]                     {
[17:27:59.497]                       base::local({
[17:27:59.497]                         has_future <- base::requireNamespace("future", 
[17:27:59.497]                           quietly = TRUE)
[17:27:59.497]                         if (has_future) {
[17:27:59.497]                           ns <- base::getNamespace("future")
[17:27:59.497]                           version <- ns[[".package"]][["version"]]
[17:27:59.497]                           if (is.null(version)) 
[17:27:59.497]                             version <- utils::packageVersion("future")
[17:27:59.497]                         }
[17:27:59.497]                         else {
[17:27:59.497]                           version <- NULL
[17:27:59.497]                         }
[17:27:59.497]                         if (!has_future || version < "1.8.0") {
[17:27:59.497]                           info <- base::c(r_version = base::gsub("R version ", 
[17:27:59.497]                             "", base::R.version$version.string), 
[17:27:59.497]                             platform = base::sprintf("%s (%s-bit)", 
[17:27:59.497]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[17:27:59.497]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[17:27:59.497]                               "release", "version")], collapse = " "), 
[17:27:59.497]                             hostname = base::Sys.info()[["nodename"]])
[17:27:59.497]                           info <- base::sprintf("%s: %s", base::names(info), 
[17:27:59.497]                             info)
[17:27:59.497]                           info <- base::paste(info, collapse = "; ")
[17:27:59.497]                           if (!has_future) {
[17:27:59.497]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[17:27:59.497]                               info)
[17:27:59.497]                           }
[17:27:59.497]                           else {
[17:27:59.497]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[17:27:59.497]                               info, version)
[17:27:59.497]                           }
[17:27:59.497]                           base::stop(msg)
[17:27:59.497]                         }
[17:27:59.497]                       })
[17:27:59.497]                     }
[17:27:59.497]                     ...future.mc.cores.old <- base::getOption("mc.cores")
[17:27:59.497]                     base::options(mc.cores = 1L)
[17:27:59.497]                   }
[17:27:59.497]                   ...future.strategy.old <- future::plan("list")
[17:27:59.497]                   options(future.plan = NULL)
[17:27:59.497]                   Sys.unsetenv("R_FUTURE_PLAN")
[17:27:59.497]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[17:27:59.497]                 }
[17:27:59.497]                 ...future.workdir <- getwd()
[17:27:59.497]             }
[17:27:59.497]             ...future.oldOptions <- base::as.list(base::.Options)
[17:27:59.497]             ...future.oldEnvVars <- base::Sys.getenv()
[17:27:59.497]         }
[17:27:59.497]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[17:27:59.497]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[17:27:59.497]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[17:27:59.497]             future.globals.resolve = TRUE, future.resolve.recursive = NULL, 
[17:27:59.497]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[17:27:59.497]             future.stdout.windows.reencode = NULL, width = 80L)
[17:27:59.497]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[17:27:59.497]             base::names(...future.oldOptions))
[17:27:59.497]     }
[17:27:59.497]     if (FALSE) {
[17:27:59.497]     }
[17:27:59.497]     else {
[17:27:59.497]         if (TRUE) {
[17:27:59.497]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[17:27:59.497]                 open = "w")
[17:27:59.497]         }
[17:27:59.497]         else {
[17:27:59.497]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[17:27:59.497]                 windows = "NUL", "/dev/null"), open = "w")
[17:27:59.497]         }
[17:27:59.497]         base::sink(...future.stdout, type = "output", split = FALSE)
[17:27:59.497]         base::on.exit(if (!base::is.null(...future.stdout)) {
[17:27:59.497]             base::sink(type = "output", split = FALSE)
[17:27:59.497]             base::close(...future.stdout)
[17:27:59.497]         }, add = TRUE)
[17:27:59.497]     }
[17:27:59.497]     ...future.frame <- base::sys.nframe()
[17:27:59.497]     ...future.conditions <- base::list()
[17:27:59.497]     ...future.rng <- base::globalenv()$.Random.seed
[17:27:59.497]     if (FALSE) {
[17:27:59.497]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[17:27:59.497]             "...future.value", "...future.globalenv.names", ".Random.seed")
[17:27:59.497]     }
[17:27:59.497]     ...future.result <- base::tryCatch({
[17:27:59.497]         base::withCallingHandlers({
[17:27:59.497]             ...future.value <- base::withVisible(base::local({
[17:27:59.497]                 ...future.makeSendCondition <- base::local({
[17:27:59.497]                   sendCondition <- NULL
[17:27:59.497]                   function(frame = 1L) {
[17:27:59.497]                     if (is.function(sendCondition)) 
[17:27:59.497]                       return(sendCondition)
[17:27:59.497]                     ns <- getNamespace("parallel")
[17:27:59.497]                     if (exists("sendData", mode = "function", 
[17:27:59.497]                       envir = ns)) {
[17:27:59.497]                       parallel_sendData <- get("sendData", mode = "function", 
[17:27:59.497]                         envir = ns)
[17:27:59.497]                       envir <- sys.frame(frame)
[17:27:59.497]                       master <- NULL
[17:27:59.497]                       while (!identical(envir, .GlobalEnv) && 
[17:27:59.497]                         !identical(envir, emptyenv())) {
[17:27:59.497]                         if (exists("master", mode = "list", envir = envir, 
[17:27:59.497]                           inherits = FALSE)) {
[17:27:59.497]                           master <- get("master", mode = "list", 
[17:27:59.497]                             envir = envir, inherits = FALSE)
[17:27:59.497]                           if (inherits(master, c("SOCKnode", 
[17:27:59.497]                             "SOCK0node"))) {
[17:27:59.497]                             sendCondition <<- function(cond) {
[17:27:59.497]                               data <- list(type = "VALUE", value = cond, 
[17:27:59.497]                                 success = TRUE)
[17:27:59.497]                               parallel_sendData(master, data)
[17:27:59.497]                             }
[17:27:59.497]                             return(sendCondition)
[17:27:59.497]                           }
[17:27:59.497]                         }
[17:27:59.497]                         frame <- frame + 1L
[17:27:59.497]                         envir <- sys.frame(frame)
[17:27:59.497]                       }
[17:27:59.497]                     }
[17:27:59.497]                     sendCondition <<- function(cond) NULL
[17:27:59.497]                   }
[17:27:59.497]                 })
[17:27:59.497]                 withCallingHandlers({
[17:27:59.497]                   {
[17:27:59.497]                     env[[b]]
[17:27:59.497]                   }
[17:27:59.497]                 }, immediateCondition = function(cond) {
[17:27:59.497]                   sendCondition <- ...future.makeSendCondition()
[17:27:59.497]                   sendCondition(cond)
[17:27:59.497]                   muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:59.497]                   {
[17:27:59.497]                     inherits <- base::inherits
[17:27:59.497]                     invokeRestart <- base::invokeRestart
[17:27:59.497]                     is.null <- base::is.null
[17:27:59.497]                     muffled <- FALSE
[17:27:59.497]                     if (inherits(cond, "message")) {
[17:27:59.497]                       muffled <- grepl(pattern, "muffleMessage")
[17:27:59.497]                       if (muffled) 
[17:27:59.497]                         invokeRestart("muffleMessage")
[17:27:59.497]                     }
[17:27:59.497]                     else if (inherits(cond, "warning")) {
[17:27:59.497]                       muffled <- grepl(pattern, "muffleWarning")
[17:27:59.497]                       if (muffled) 
[17:27:59.497]                         invokeRestart("muffleWarning")
[17:27:59.497]                     }
[17:27:59.497]                     else if (inherits(cond, "condition")) {
[17:27:59.497]                       if (!is.null(pattern)) {
[17:27:59.497]                         computeRestarts <- base::computeRestarts
[17:27:59.497]                         grepl <- base::grepl
[17:27:59.497]                         restarts <- computeRestarts(cond)
[17:27:59.497]                         for (restart in restarts) {
[17:27:59.497]                           name <- restart$name
[17:27:59.497]                           if (is.null(name)) 
[17:27:59.497]                             next
[17:27:59.497]                           if (!grepl(pattern, name)) 
[17:27:59.497]                             next
[17:27:59.497]                           invokeRestart(restart)
[17:27:59.497]                           muffled <- TRUE
[17:27:59.497]                           break
[17:27:59.497]                         }
[17:27:59.497]                       }
[17:27:59.497]                     }
[17:27:59.497]                     invisible(muffled)
[17:27:59.497]                   }
[17:27:59.497]                   muffleCondition(cond)
[17:27:59.497]                 })
[17:27:59.497]             }))
[17:27:59.497]             future::FutureResult(value = ...future.value$value, 
[17:27:59.497]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[17:27:59.497]                   ...future.rng), globalenv = if (FALSE) 
[17:27:59.497]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[17:27:59.497]                     ...future.globalenv.names))
[17:27:59.497]                 else NULL, started = ...future.startTime, version = "1.8")
[17:27:59.497]         }, condition = base::local({
[17:27:59.497]             c <- base::c
[17:27:59.497]             inherits <- base::inherits
[17:27:59.497]             invokeRestart <- base::invokeRestart
[17:27:59.497]             length <- base::length
[17:27:59.497]             list <- base::list
[17:27:59.497]             seq.int <- base::seq.int
[17:27:59.497]             signalCondition <- base::signalCondition
[17:27:59.497]             sys.calls <- base::sys.calls
[17:27:59.497]             `[[` <- base::`[[`
[17:27:59.497]             `+` <- base::`+`
[17:27:59.497]             `<<-` <- base::`<<-`
[17:27:59.497]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[17:27:59.497]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[17:27:59.497]                   3L)]
[17:27:59.497]             }
[17:27:59.497]             function(cond) {
[17:27:59.497]                 is_error <- inherits(cond, "error")
[17:27:59.497]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[17:27:59.497]                   NULL)
[17:27:59.497]                 if (is_error) {
[17:27:59.497]                   sessionInformation <- function() {
[17:27:59.497]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[17:27:59.497]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[17:27:59.497]                       search = base::search(), system = base::Sys.info())
[17:27:59.497]                   }
[17:27:59.497]                   ...future.conditions[[length(...future.conditions) + 
[17:27:59.497]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[17:27:59.497]                     cond$call), session = sessionInformation(), 
[17:27:59.497]                     timestamp = base::Sys.time(), signaled = 0L)
[17:27:59.497]                   signalCondition(cond)
[17:27:59.497]                 }
[17:27:59.497]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[17:27:59.497]                 "immediateCondition"))) {
[17:27:59.497]                   signal <- TRUE && inherits(cond, "immediateCondition")
[17:27:59.497]                   ...future.conditions[[length(...future.conditions) + 
[17:27:59.497]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[17:27:59.497]                   if (TRUE && !signal) {
[17:27:59.497]                     muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:59.497]                     {
[17:27:59.497]                       inherits <- base::inherits
[17:27:59.497]                       invokeRestart <- base::invokeRestart
[17:27:59.497]                       is.null <- base::is.null
[17:27:59.497]                       muffled <- FALSE
[17:27:59.497]                       if (inherits(cond, "message")) {
[17:27:59.497]                         muffled <- grepl(pattern, "muffleMessage")
[17:27:59.497]                         if (muffled) 
[17:27:59.497]                           invokeRestart("muffleMessage")
[17:27:59.497]                       }
[17:27:59.497]                       else if (inherits(cond, "warning")) {
[17:27:59.497]                         muffled <- grepl(pattern, "muffleWarning")
[17:27:59.497]                         if (muffled) 
[17:27:59.497]                           invokeRestart("muffleWarning")
[17:27:59.497]                       }
[17:27:59.497]                       else if (inherits(cond, "condition")) {
[17:27:59.497]                         if (!is.null(pattern)) {
[17:27:59.497]                           computeRestarts <- base::computeRestarts
[17:27:59.497]                           grepl <- base::grepl
[17:27:59.497]                           restarts <- computeRestarts(cond)
[17:27:59.497]                           for (restart in restarts) {
[17:27:59.497]                             name <- restart$name
[17:27:59.497]                             if (is.null(name)) 
[17:27:59.497]                               next
[17:27:59.497]                             if (!grepl(pattern, name)) 
[17:27:59.497]                               next
[17:27:59.497]                             invokeRestart(restart)
[17:27:59.497]                             muffled <- TRUE
[17:27:59.497]                             break
[17:27:59.497]                           }
[17:27:59.497]                         }
[17:27:59.497]                       }
[17:27:59.497]                       invisible(muffled)
[17:27:59.497]                     }
[17:27:59.497]                     muffleCondition(cond, pattern = "^muffle")
[17:27:59.497]                   }
[17:27:59.497]                 }
[17:27:59.497]                 else {
[17:27:59.497]                   if (TRUE) {
[17:27:59.497]                     muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:59.497]                     {
[17:27:59.497]                       inherits <- base::inherits
[17:27:59.497]                       invokeRestart <- base::invokeRestart
[17:27:59.497]                       is.null <- base::is.null
[17:27:59.497]                       muffled <- FALSE
[17:27:59.497]                       if (inherits(cond, "message")) {
[17:27:59.497]                         muffled <- grepl(pattern, "muffleMessage")
[17:27:59.497]                         if (muffled) 
[17:27:59.497]                           invokeRestart("muffleMessage")
[17:27:59.497]                       }
[17:27:59.497]                       else if (inherits(cond, "warning")) {
[17:27:59.497]                         muffled <- grepl(pattern, "muffleWarning")
[17:27:59.497]                         if (muffled) 
[17:27:59.497]                           invokeRestart("muffleWarning")
[17:27:59.497]                       }
[17:27:59.497]                       else if (inherits(cond, "condition")) {
[17:27:59.497]                         if (!is.null(pattern)) {
[17:27:59.497]                           computeRestarts <- base::computeRestarts
[17:27:59.497]                           grepl <- base::grepl
[17:27:59.497]                           restarts <- computeRestarts(cond)
[17:27:59.497]                           for (restart in restarts) {
[17:27:59.497]                             name <- restart$name
[17:27:59.497]                             if (is.null(name)) 
[17:27:59.497]                               next
[17:27:59.497]                             if (!grepl(pattern, name)) 
[17:27:59.497]                               next
[17:27:59.497]                             invokeRestart(restart)
[17:27:59.497]                             muffled <- TRUE
[17:27:59.497]                             break
[17:27:59.497]                           }
[17:27:59.497]                         }
[17:27:59.497]                       }
[17:27:59.497]                       invisible(muffled)
[17:27:59.497]                     }
[17:27:59.497]                     muffleCondition(cond, pattern = "^muffle")
[17:27:59.497]                   }
[17:27:59.497]                 }
[17:27:59.497]             }
[17:27:59.497]         }))
[17:27:59.497]     }, error = function(ex) {
[17:27:59.497]         base::structure(base::list(value = NULL, visible = NULL, 
[17:27:59.497]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[17:27:59.497]                 ...future.rng), started = ...future.startTime, 
[17:27:59.497]             finished = Sys.time(), session_uuid = NA_character_, 
[17:27:59.497]             version = "1.8"), class = "FutureResult")
[17:27:59.497]     }, finally = {
[17:27:59.497]         if (!identical(...future.workdir, getwd())) 
[17:27:59.497]             setwd(...future.workdir)
[17:27:59.497]         {
[17:27:59.497]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[17:27:59.497]                 ...future.oldOptions$nwarnings <- NULL
[17:27:59.497]             }
[17:27:59.497]             base::options(...future.oldOptions)
[17:27:59.497]             if (.Platform$OS.type == "windows") {
[17:27:59.497]                 old_names <- names(...future.oldEnvVars)
[17:27:59.497]                 envs <- base::Sys.getenv()
[17:27:59.497]                 names <- names(envs)
[17:27:59.497]                 common <- intersect(names, old_names)
[17:27:59.497]                 added <- setdiff(names, old_names)
[17:27:59.497]                 removed <- setdiff(old_names, names)
[17:27:59.497]                 changed <- common[...future.oldEnvVars[common] != 
[17:27:59.497]                   envs[common]]
[17:27:59.497]                 NAMES <- toupper(changed)
[17:27:59.497]                 args <- list()
[17:27:59.497]                 for (kk in seq_along(NAMES)) {
[17:27:59.497]                   name <- changed[[kk]]
[17:27:59.497]                   NAME <- NAMES[[kk]]
[17:27:59.497]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:59.497]                     next
[17:27:59.497]                   args[[name]] <- ...future.oldEnvVars[[name]]
[17:27:59.497]                 }
[17:27:59.497]                 NAMES <- toupper(added)
[17:27:59.497]                 for (kk in seq_along(NAMES)) {
[17:27:59.497]                   name <- added[[kk]]
[17:27:59.497]                   NAME <- NAMES[[kk]]
[17:27:59.497]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:59.497]                     next
[17:27:59.497]                   args[[name]] <- ""
[17:27:59.497]                 }
[17:27:59.497]                 NAMES <- toupper(removed)
[17:27:59.497]                 for (kk in seq_along(NAMES)) {
[17:27:59.497]                   name <- removed[[kk]]
[17:27:59.497]                   NAME <- NAMES[[kk]]
[17:27:59.497]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:59.497]                     next
[17:27:59.497]                   args[[name]] <- ...future.oldEnvVars[[name]]
[17:27:59.497]                 }
[17:27:59.497]                 if (length(args) > 0) 
[17:27:59.497]                   base::do.call(base::Sys.setenv, args = args)
[17:27:59.497]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[17:27:59.497]             }
[17:27:59.497]             else {
[17:27:59.497]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[17:27:59.497]             }
[17:27:59.497]             {
[17:27:59.497]                 if (base::length(...future.futureOptionsAdded) > 
[17:27:59.497]                   0L) {
[17:27:59.497]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[17:27:59.497]                   base::names(opts) <- ...future.futureOptionsAdded
[17:27:59.497]                   base::options(opts)
[17:27:59.497]                 }
[17:27:59.497]                 {
[17:27:59.497]                   {
[17:27:59.497]                     base::options(mc.cores = ...future.mc.cores.old)
[17:27:59.497]                     NULL
[17:27:59.497]                   }
[17:27:59.497]                   options(future.plan = NULL)
[17:27:59.497]                   if (is.na(NA_character_)) 
[17:27:59.497]                     Sys.unsetenv("R_FUTURE_PLAN")
[17:27:59.497]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[17:27:59.497]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[17:27:59.497]                     .init = FALSE)
[17:27:59.497]                 }
[17:27:59.497]             }
[17:27:59.497]         }
[17:27:59.497]     })
[17:27:59.497]     if (TRUE) {
[17:27:59.497]         base::sink(type = "output", split = FALSE)
[17:27:59.497]         if (TRUE) {
[17:27:59.497]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[17:27:59.497]         }
[17:27:59.497]         else {
[17:27:59.497]             ...future.result["stdout"] <- base::list(NULL)
[17:27:59.497]         }
[17:27:59.497]         base::close(...future.stdout)
[17:27:59.497]         ...future.stdout <- NULL
[17:27:59.497]     }
[17:27:59.497]     ...future.result$conditions <- ...future.conditions
[17:27:59.497]     ...future.result$finished <- base::Sys.time()
[17:27:59.497]     ...future.result
[17:27:59.497] }
[17:27:59.517] Exporting 2 global objects (327.17 KiB) to cluster node #1 ...
[17:27:59.529] Exporting 'env' (326.92 KiB) to cluster node #1 ...
[17:27:59.545] Exporting 'env' (326.92 KiB) to cluster node #1 ... DONE
[17:27:59.545] Exporting 'b' (40 bytes) to cluster node #1 ...
[17:27:59.546] Exporting 'b' (40 bytes) to cluster node #1 ... DONE
[17:27:59.546] Exporting 2 global objects (327.17 KiB) to cluster node #1 ... DONE
[17:27:59.547] MultisessionFuture started
[17:27:59.548] - Launch lazy future ... done
[17:27:59.548] run() for 'MultisessionFuture' ... done
> 
> ## Resolve future #3
> message(sprintf("y = %s\n", y))
[17:27:59.549] result() for ClusterFuture ...
[17:27:59.549] receiveMessageFromWorker() for ClusterFuture ...
[17:27:59.549] - Validating connection of MultisessionFuture
[17:27:59.566] - received message: FutureResult
[17:27:59.566] - Received FutureResult
[17:27:59.566] - Erased future from FutureRegistry
[17:27:59.566] result() for ClusterFuture ...
[17:27:59.567] - result already collected: FutureResult
[17:27:59.567] result() for ClusterFuture ... done
[17:27:59.567] receiveMessageFromWorker() for ClusterFuture ... done
[17:27:59.567] result() for ClusterFuture ... done
[17:27:59.567] result() for ClusterFuture ...
[17:27:59.567] - result already collected: FutureResult
[17:27:59.568] result() for ClusterFuture ... done
y = 5

> 
> ## Resolve future #1 if not already done
> str(as.list(env))
[17:27:59.568] result() for ClusterFuture ...
[17:27:59.568] - result already collected: FutureResult
[17:27:59.568] result() for ClusterFuture ... done
[17:27:59.569] result() for ClusterFuture ...
[17:27:59.569] - result already collected: FutureResult
[17:27:59.569] result() for ClusterFuture ... done
List of 1
 $ a: num 5
> 
> ## Create future #4
> ## Since future #1 is resolved it will work at this point
> y %<-% { env[[b]] }
Warning in getGlobalsAndPackages(expr, envir = envir, tweak = tweakExpression,  :
  R option 'future.globals.resolve' may only be used for troubleshooting. It must not be used in production since it changes how futures are evaluated and there is a great risk that the results cannot be reproduced elsewhere: 'TRUE'
[17:27:59.570] getGlobalsAndPackages() ...
[17:27:59.571] Searching for globals...
[17:27:59.572] - globals found: [4] '{', '[[', 'env', 'b'
[17:27:59.572] Searching for globals ... DONE
[17:27:59.572] Resolving globals: TRUE
[17:27:59.572] Resolving any globals that are futures ...
[17:27:59.573] - globals: [4] '{', '[[', 'env', 'b'
[17:27:59.573] Resolving any globals that are futures ... DONE
[17:27:59.573] Resolving futures part of globals (recursively) ...
[17:27:59.574] resolve() on list ...
[17:27:59.574]  recursive: 99
[17:27:59.574]  length: 2
[17:27:59.574]  elements: 'env', 'b'
[17:27:59.574] resolve() on environment ...
[17:27:59.575]  recursive: 98
[17:27:59.575]  elements: [1] 'a'
[17:27:59.575]  length: 0 (resolved future 1)
[17:27:59.575] resolve() on environment ... DONE
[17:27:59.576]  length: 1 (resolved future 1)
[17:27:59.576]  length: 0 (resolved future 2)
[17:27:59.576] resolve() on list ... DONE
[17:27:59.576] - globals: [2] 'env', 'b'
[17:27:59.576] Resolving futures part of globals (recursively) ... DONE
[17:27:59.576] The total size of the 2 globals is 499 bytes (499 bytes)
[17:27:59.577] The total size of the 2 globals exported for future expression ('{; env[[b]]; }') is 499 bytes.. This exceeds the maximum allowed size of 500.00 MiB (option 'future.globals.maxSize'). There are two globals: 'env' (459 bytes of class 'environment') and 'b' (40 bytes of class 'character')
[17:27:59.577] - globals: [2] 'env', 'b'
[17:27:59.577] 
[17:27:59.577] getGlobalsAndPackages() ... DONE
[17:27:59.578] run() for 'Future' ...
[17:27:59.578] - state: 'created'
[17:27:59.578] - Future backend: 'FutureStrategy', 'tweaked', 'multisession', 'cluster', 'multiprocess', 'future', 'function'
[17:27:59.592] - Future class: 'MultisessionFuture', 'ClusterFuture', 'MultiprocessFuture', 'Future', 'environment'
[17:27:59.592] - Copy elements of temporary 'MultisessionFuture' to final 'Future' object ...
[17:27:59.592]   - Field: 'node'
[17:27:59.593]   - Field: 'label'
[17:27:59.593]   - Field: 'local'
[17:27:59.593]   - Field: 'owner'
[17:27:59.593]   - Field: 'envir'
[17:27:59.593]   - Field: 'workers'
[17:27:59.594]   - Field: 'packages'
[17:27:59.594]   - Field: 'gc'
[17:27:59.594]   - Field: 'conditions'
[17:27:59.594]   - Field: 'persistent'
[17:27:59.594]   - Field: 'expr'
[17:27:59.595]   - Field: 'uuid'
[17:27:59.595]   - Field: 'seed'
[17:27:59.595]   - Field: 'version'
[17:27:59.595]   - Field: 'result'
[17:27:59.596]   - Field: 'asynchronous'
[17:27:59.596]   - Field: 'calls'
[17:27:59.597]   - Field: 'globals'
[17:27:59.597]   - Field: 'stdout'
[17:27:59.597]   - Field: 'earlySignal'
[17:27:59.598]   - Field: 'lazy'
[17:27:59.598]   - Field: 'state'
[17:27:59.598] - Copy elements of temporary 'MultisessionFuture' to final 'Future' object ... done
[17:27:59.598] - Launch lazy future ...
[17:27:59.599] Packages needed by the future expression (n = 0): <none>
[17:27:59.599] Packages needed by future strategies (n = 0): <none>
[17:27:59.600] {
[17:27:59.600]     {
[17:27:59.600]         {
[17:27:59.600]             ...future.startTime <- base::Sys.time()
[17:27:59.600]             {
[17:27:59.600]                 {
[17:27:59.600]                   {
[17:27:59.600]                     {
[17:27:59.600]                       base::local({
[17:27:59.600]                         has_future <- base::requireNamespace("future", 
[17:27:59.600]                           quietly = TRUE)
[17:27:59.600]                         if (has_future) {
[17:27:59.600]                           ns <- base::getNamespace("future")
[17:27:59.600]                           version <- ns[[".package"]][["version"]]
[17:27:59.600]                           if (is.null(version)) 
[17:27:59.600]                             version <- utils::packageVersion("future")
[17:27:59.600]                         }
[17:27:59.600]                         else {
[17:27:59.600]                           version <- NULL
[17:27:59.600]                         }
[17:27:59.600]                         if (!has_future || version < "1.8.0") {
[17:27:59.600]                           info <- base::c(r_version = base::gsub("R version ", 
[17:27:59.600]                             "", base::R.version$version.string), 
[17:27:59.600]                             platform = base::sprintf("%s (%s-bit)", 
[17:27:59.600]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[17:27:59.600]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[17:27:59.600]                               "release", "version")], collapse = " "), 
[17:27:59.600]                             hostname = base::Sys.info()[["nodename"]])
[17:27:59.600]                           info <- base::sprintf("%s: %s", base::names(info), 
[17:27:59.600]                             info)
[17:27:59.600]                           info <- base::paste(info, collapse = "; ")
[17:27:59.600]                           if (!has_future) {
[17:27:59.600]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[17:27:59.600]                               info)
[17:27:59.600]                           }
[17:27:59.600]                           else {
[17:27:59.600]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[17:27:59.600]                               info, version)
[17:27:59.600]                           }
[17:27:59.600]                           base::stop(msg)
[17:27:59.600]                         }
[17:27:59.600]                       })
[17:27:59.600]                     }
[17:27:59.600]                     ...future.mc.cores.old <- base::getOption("mc.cores")
[17:27:59.600]                     base::options(mc.cores = 1L)
[17:27:59.600]                   }
[17:27:59.600]                   ...future.strategy.old <- future::plan("list")
[17:27:59.600]                   options(future.plan = NULL)
[17:27:59.600]                   Sys.unsetenv("R_FUTURE_PLAN")
[17:27:59.600]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[17:27:59.600]                 }
[17:27:59.600]                 ...future.workdir <- getwd()
[17:27:59.600]             }
[17:27:59.600]             ...future.oldOptions <- base::as.list(base::.Options)
[17:27:59.600]             ...future.oldEnvVars <- base::Sys.getenv()
[17:27:59.600]         }
[17:27:59.600]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[17:27:59.600]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[17:27:59.600]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[17:27:59.600]             future.globals.resolve = TRUE, future.resolve.recursive = NULL, 
[17:27:59.600]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[17:27:59.600]             future.stdout.windows.reencode = NULL, width = 80L)
[17:27:59.600]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[17:27:59.600]             base::names(...future.oldOptions))
[17:27:59.600]     }
[17:27:59.600]     if (FALSE) {
[17:27:59.600]     }
[17:27:59.600]     else {
[17:27:59.600]         if (TRUE) {
[17:27:59.600]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[17:27:59.600]                 open = "w")
[17:27:59.600]         }
[17:27:59.600]         else {
[17:27:59.600]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[17:27:59.600]                 windows = "NUL", "/dev/null"), open = "w")
[17:27:59.600]         }
[17:27:59.600]         base::sink(...future.stdout, type = "output", split = FALSE)
[17:27:59.600]         base::on.exit(if (!base::is.null(...future.stdout)) {
[17:27:59.600]             base::sink(type = "output", split = FALSE)
[17:27:59.600]             base::close(...future.stdout)
[17:27:59.600]         }, add = TRUE)
[17:27:59.600]     }
[17:27:59.600]     ...future.frame <- base::sys.nframe()
[17:27:59.600]     ...future.conditions <- base::list()
[17:27:59.600]     ...future.rng <- base::globalenv()$.Random.seed
[17:27:59.600]     if (FALSE) {
[17:27:59.600]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[17:27:59.600]             "...future.value", "...future.globalenv.names", ".Random.seed")
[17:27:59.600]     }
[17:27:59.600]     ...future.result <- base::tryCatch({
[17:27:59.600]         base::withCallingHandlers({
[17:27:59.600]             ...future.value <- base::withVisible(base::local({
[17:27:59.600]                 ...future.makeSendCondition <- base::local({
[17:27:59.600]                   sendCondition <- NULL
[17:27:59.600]                   function(frame = 1L) {
[17:27:59.600]                     if (is.function(sendCondition)) 
[17:27:59.600]                       return(sendCondition)
[17:27:59.600]                     ns <- getNamespace("parallel")
[17:27:59.600]                     if (exists("sendData", mode = "function", 
[17:27:59.600]                       envir = ns)) {
[17:27:59.600]                       parallel_sendData <- get("sendData", mode = "function", 
[17:27:59.600]                         envir = ns)
[17:27:59.600]                       envir <- sys.frame(frame)
[17:27:59.600]                       master <- NULL
[17:27:59.600]                       while (!identical(envir, .GlobalEnv) && 
[17:27:59.600]                         !identical(envir, emptyenv())) {
[17:27:59.600]                         if (exists("master", mode = "list", envir = envir, 
[17:27:59.600]                           inherits = FALSE)) {
[17:27:59.600]                           master <- get("master", mode = "list", 
[17:27:59.600]                             envir = envir, inherits = FALSE)
[17:27:59.600]                           if (inherits(master, c("SOCKnode", 
[17:27:59.600]                             "SOCK0node"))) {
[17:27:59.600]                             sendCondition <<- function(cond) {
[17:27:59.600]                               data <- list(type = "VALUE", value = cond, 
[17:27:59.600]                                 success = TRUE)
[17:27:59.600]                               parallel_sendData(master, data)
[17:27:59.600]                             }
[17:27:59.600]                             return(sendCondition)
[17:27:59.600]                           }
[17:27:59.600]                         }
[17:27:59.600]                         frame <- frame + 1L
[17:27:59.600]                         envir <- sys.frame(frame)
[17:27:59.600]                       }
[17:27:59.600]                     }
[17:27:59.600]                     sendCondition <<- function(cond) NULL
[17:27:59.600]                   }
[17:27:59.600]                 })
[17:27:59.600]                 withCallingHandlers({
[17:27:59.600]                   {
[17:27:59.600]                     env[[b]]
[17:27:59.600]                   }
[17:27:59.600]                 }, immediateCondition = function(cond) {
[17:27:59.600]                   sendCondition <- ...future.makeSendCondition()
[17:27:59.600]                   sendCondition(cond)
[17:27:59.600]                   muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:59.600]                   {
[17:27:59.600]                     inherits <- base::inherits
[17:27:59.600]                     invokeRestart <- base::invokeRestart
[17:27:59.600]                     is.null <- base::is.null
[17:27:59.600]                     muffled <- FALSE
[17:27:59.600]                     if (inherits(cond, "message")) {
[17:27:59.600]                       muffled <- grepl(pattern, "muffleMessage")
[17:27:59.600]                       if (muffled) 
[17:27:59.600]                         invokeRestart("muffleMessage")
[17:27:59.600]                     }
[17:27:59.600]                     else if (inherits(cond, "warning")) {
[17:27:59.600]                       muffled <- grepl(pattern, "muffleWarning")
[17:27:59.600]                       if (muffled) 
[17:27:59.600]                         invokeRestart("muffleWarning")
[17:27:59.600]                     }
[17:27:59.600]                     else if (inherits(cond, "condition")) {
[17:27:59.600]                       if (!is.null(pattern)) {
[17:27:59.600]                         computeRestarts <- base::computeRestarts
[17:27:59.600]                         grepl <- base::grepl
[17:27:59.600]                         restarts <- computeRestarts(cond)
[17:27:59.600]                         for (restart in restarts) {
[17:27:59.600]                           name <- restart$name
[17:27:59.600]                           if (is.null(name)) 
[17:27:59.600]                             next
[17:27:59.600]                           if (!grepl(pattern, name)) 
[17:27:59.600]                             next
[17:27:59.600]                           invokeRestart(restart)
[17:27:59.600]                           muffled <- TRUE
[17:27:59.600]                           break
[17:27:59.600]                         }
[17:27:59.600]                       }
[17:27:59.600]                     }
[17:27:59.600]                     invisible(muffled)
[17:27:59.600]                   }
[17:27:59.600]                   muffleCondition(cond)
[17:27:59.600]                 })
[17:27:59.600]             }))
[17:27:59.600]             future::FutureResult(value = ...future.value$value, 
[17:27:59.600]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[17:27:59.600]                   ...future.rng), globalenv = if (FALSE) 
[17:27:59.600]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[17:27:59.600]                     ...future.globalenv.names))
[17:27:59.600]                 else NULL, started = ...future.startTime, version = "1.8")
[17:27:59.600]         }, condition = base::local({
[17:27:59.600]             c <- base::c
[17:27:59.600]             inherits <- base::inherits
[17:27:59.600]             invokeRestart <- base::invokeRestart
[17:27:59.600]             length <- base::length
[17:27:59.600]             list <- base::list
[17:27:59.600]             seq.int <- base::seq.int
[17:27:59.600]             signalCondition <- base::signalCondition
[17:27:59.600]             sys.calls <- base::sys.calls
[17:27:59.600]             `[[` <- base::`[[`
[17:27:59.600]             `+` <- base::`+`
[17:27:59.600]             `<<-` <- base::`<<-`
[17:27:59.600]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[17:27:59.600]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[17:27:59.600]                   3L)]
[17:27:59.600]             }
[17:27:59.600]             function(cond) {
[17:27:59.600]                 is_error <- inherits(cond, "error")
[17:27:59.600]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[17:27:59.600]                   NULL)
[17:27:59.600]                 if (is_error) {
[17:27:59.600]                   sessionInformation <- function() {
[17:27:59.600]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[17:27:59.600]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[17:27:59.600]                       search = base::search(), system = base::Sys.info())
[17:27:59.600]                   }
[17:27:59.600]                   ...future.conditions[[length(...future.conditions) + 
[17:27:59.600]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[17:27:59.600]                     cond$call), session = sessionInformation(), 
[17:27:59.600]                     timestamp = base::Sys.time(), signaled = 0L)
[17:27:59.600]                   signalCondition(cond)
[17:27:59.600]                 }
[17:27:59.600]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[17:27:59.600]                 "immediateCondition"))) {
[17:27:59.600]                   signal <- TRUE && inherits(cond, "immediateCondition")
[17:27:59.600]                   ...future.conditions[[length(...future.conditions) + 
[17:27:59.600]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[17:27:59.600]                   if (TRUE && !signal) {
[17:27:59.600]                     muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:59.600]                     {
[17:27:59.600]                       inherits <- base::inherits
[17:27:59.600]                       invokeRestart <- base::invokeRestart
[17:27:59.600]                       is.null <- base::is.null
[17:27:59.600]                       muffled <- FALSE
[17:27:59.600]                       if (inherits(cond, "message")) {
[17:27:59.600]                         muffled <- grepl(pattern, "muffleMessage")
[17:27:59.600]                         if (muffled) 
[17:27:59.600]                           invokeRestart("muffleMessage")
[17:27:59.600]                       }
[17:27:59.600]                       else if (inherits(cond, "warning")) {
[17:27:59.600]                         muffled <- grepl(pattern, "muffleWarning")
[17:27:59.600]                         if (muffled) 
[17:27:59.600]                           invokeRestart("muffleWarning")
[17:27:59.600]                       }
[17:27:59.600]                       else if (inherits(cond, "condition")) {
[17:27:59.600]                         if (!is.null(pattern)) {
[17:27:59.600]                           computeRestarts <- base::computeRestarts
[17:27:59.600]                           grepl <- base::grepl
[17:27:59.600]                           restarts <- computeRestarts(cond)
[17:27:59.600]                           for (restart in restarts) {
[17:27:59.600]                             name <- restart$name
[17:27:59.600]                             if (is.null(name)) 
[17:27:59.600]                               next
[17:27:59.600]                             if (!grepl(pattern, name)) 
[17:27:59.600]                               next
[17:27:59.600]                             invokeRestart(restart)
[17:27:59.600]                             muffled <- TRUE
[17:27:59.600]                             break
[17:27:59.600]                           }
[17:27:59.600]                         }
[17:27:59.600]                       }
[17:27:59.600]                       invisible(muffled)
[17:27:59.600]                     }
[17:27:59.600]                     muffleCondition(cond, pattern = "^muffle")
[17:27:59.600]                   }
[17:27:59.600]                 }
[17:27:59.600]                 else {
[17:27:59.600]                   if (TRUE) {
[17:27:59.600]                     muffleCondition <- function (cond, pattern = "^muffle") 
[17:27:59.600]                     {
[17:27:59.600]                       inherits <- base::inherits
[17:27:59.600]                       invokeRestart <- base::invokeRestart
[17:27:59.600]                       is.null <- base::is.null
[17:27:59.600]                       muffled <- FALSE
[17:27:59.600]                       if (inherits(cond, "message")) {
[17:27:59.600]                         muffled <- grepl(pattern, "muffleMessage")
[17:27:59.600]                         if (muffled) 
[17:27:59.600]                           invokeRestart("muffleMessage")
[17:27:59.600]                       }
[17:27:59.600]                       else if (inherits(cond, "warning")) {
[17:27:59.600]                         muffled <- grepl(pattern, "muffleWarning")
[17:27:59.600]                         if (muffled) 
[17:27:59.600]                           invokeRestart("muffleWarning")
[17:27:59.600]                       }
[17:27:59.600]                       else if (inherits(cond, "condition")) {
[17:27:59.600]                         if (!is.null(pattern)) {
[17:27:59.600]                           computeRestarts <- base::computeRestarts
[17:27:59.600]                           grepl <- base::grepl
[17:27:59.600]                           restarts <- computeRestarts(cond)
[17:27:59.600]                           for (restart in restarts) {
[17:27:59.600]                             name <- restart$name
[17:27:59.600]                             if (is.null(name)) 
[17:27:59.600]                               next
[17:27:59.600]                             if (!grepl(pattern, name)) 
[17:27:59.600]                               next
[17:27:59.600]                             invokeRestart(restart)
[17:27:59.600]                             muffled <- TRUE
[17:27:59.600]                             break
[17:27:59.600]                           }
[17:27:59.600]                         }
[17:27:59.600]                       }
[17:27:59.600]                       invisible(muffled)
[17:27:59.600]                     }
[17:27:59.600]                     muffleCondition(cond, pattern = "^muffle")
[17:27:59.600]                   }
[17:27:59.600]                 }
[17:27:59.600]             }
[17:27:59.600]         }))
[17:27:59.600]     }, error = function(ex) {
[17:27:59.600]         base::structure(base::list(value = NULL, visible = NULL, 
[17:27:59.600]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[17:27:59.600]                 ...future.rng), started = ...future.startTime, 
[17:27:59.600]             finished = Sys.time(), session_uuid = NA_character_, 
[17:27:59.600]             version = "1.8"), class = "FutureResult")
[17:27:59.600]     }, finally = {
[17:27:59.600]         if (!identical(...future.workdir, getwd())) 
[17:27:59.600]             setwd(...future.workdir)
[17:27:59.600]         {
[17:27:59.600]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[17:27:59.600]                 ...future.oldOptions$nwarnings <- NULL
[17:27:59.600]             }
[17:27:59.600]             base::options(...future.oldOptions)
[17:27:59.600]             if (.Platform$OS.type == "windows") {
[17:27:59.600]                 old_names <- names(...future.oldEnvVars)
[17:27:59.600]                 envs <- base::Sys.getenv()
[17:27:59.600]                 names <- names(envs)
[17:27:59.600]                 common <- intersect(names, old_names)
[17:27:59.600]                 added <- setdiff(names, old_names)
[17:27:59.600]                 removed <- setdiff(old_names, names)
[17:27:59.600]                 changed <- common[...future.oldEnvVars[common] != 
[17:27:59.600]                   envs[common]]
[17:27:59.600]                 NAMES <- toupper(changed)
[17:27:59.600]                 args <- list()
[17:27:59.600]                 for (kk in seq_along(NAMES)) {
[17:27:59.600]                   name <- changed[[kk]]
[17:27:59.600]                   NAME <- NAMES[[kk]]
[17:27:59.600]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:59.600]                     next
[17:27:59.600]                   args[[name]] <- ...future.oldEnvVars[[name]]
[17:27:59.600]                 }
[17:27:59.600]                 NAMES <- toupper(added)
[17:27:59.600]                 for (kk in seq_along(NAMES)) {
[17:27:59.600]                   name <- added[[kk]]
[17:27:59.600]                   NAME <- NAMES[[kk]]
[17:27:59.600]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:59.600]                     next
[17:27:59.600]                   args[[name]] <- ""
[17:27:59.600]                 }
[17:27:59.600]                 NAMES <- toupper(removed)
[17:27:59.600]                 for (kk in seq_along(NAMES)) {
[17:27:59.600]                   name <- removed[[kk]]
[17:27:59.600]                   NAME <- NAMES[[kk]]
[17:27:59.600]                   if (name != NAME && is.element(NAME, old_names)) 
[17:27:59.600]                     next
[17:27:59.600]                   args[[name]] <- ...future.oldEnvVars[[name]]
[17:27:59.600]                 }
[17:27:59.600]                 if (length(args) > 0) 
[17:27:59.600]                   base::do.call(base::Sys.setenv, args = args)
[17:27:59.600]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[17:27:59.600]             }
[17:27:59.600]             else {
[17:27:59.600]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[17:27:59.600]             }
[17:27:59.600]             {
[17:27:59.600]                 if (base::length(...future.futureOptionsAdded) > 
[17:27:59.600]                   0L) {
[17:27:59.600]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[17:27:59.600]                   base::names(opts) <- ...future.futureOptionsAdded
[17:27:59.600]                   base::options(opts)
[17:27:59.600]                 }
[17:27:59.600]                 {
[17:27:59.600]                   {
[17:27:59.600]                     base::options(mc.cores = ...future.mc.cores.old)
[17:27:59.600]                     NULL
[17:27:59.600]                   }
[17:27:59.600]                   options(future.plan = NULL)
[17:27:59.600]                   if (is.na(NA_character_)) 
[17:27:59.600]                     Sys.unsetenv("R_FUTURE_PLAN")
[17:27:59.600]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[17:27:59.600]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[17:27:59.600]                     .init = FALSE)
[17:27:59.600]                 }
[17:27:59.600]             }
[17:27:59.600]         }
[17:27:59.600]     })
[17:27:59.600]     if (TRUE) {
[17:27:59.600]         base::sink(type = "output", split = FALSE)
[17:27:59.600]         if (TRUE) {
[17:27:59.600]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[17:27:59.600]         }
[17:27:59.600]         else {
[17:27:59.600]             ...future.result["stdout"] <- base::list(NULL)
[17:27:59.600]         }
[17:27:59.600]         base::close(...future.stdout)
[17:27:59.600]         ...future.stdout <- NULL
[17:27:59.600]     }
[17:27:59.600]     ...future.result$conditions <- ...future.conditions
[17:27:59.600]     ...future.result$finished <- base::Sys.time()
[17:27:59.600]     ...future.result
[17:27:59.600] }
[17:27:59.609] Exporting 2 global objects (805 bytes) to cluster node #1 ...
[17:27:59.610] Exporting 'env' (459 bytes) to cluster node #1 ...
[17:27:59.610] Exporting 'env' (459 bytes) to cluster node #1 ... DONE
[17:27:59.611] Exporting 'b' (40 bytes) to cluster node #1 ...
[17:27:59.611] Exporting 'b' (40 bytes) to cluster node #1 ... DONE
[17:27:59.612] Exporting 2 global objects (805 bytes) to cluster node #1 ... DONE
[17:27:59.613] MultisessionFuture started
[17:27:59.613] - Launch lazy future ... done
[17:27:59.613] run() for 'MultisessionFuture' ... done
> ## Resolve future #4
> message(sprintf("y = %s\n", y))
[17:27:59.614] result() for ClusterFuture ...
[17:27:59.614] receiveMessageFromWorker() for ClusterFuture ...
[17:27:59.614] - Validating connection of MultisessionFuture
[17:27:59.628] - received message: FutureResult
[17:27:59.628] - Received FutureResult
[17:27:59.629] - Erased future from FutureRegistry
[17:27:59.629] result() for ClusterFuture ...
[17:27:59.629] - result already collected: FutureResult
[17:27:59.630] result() for ClusterFuture ... done
[17:27:59.630] receiveMessageFromWorker() for ClusterFuture ... done
[17:27:59.630] result() for ClusterFuture ... done
[17:27:59.630] result() for ClusterFuture ...
[17:27:59.631] - result already collected: FutureResult
[17:27:59.631] result() for ClusterFuture ... done
y = 5

> 
> message("*** Tricky use cases related to globals (part 2) ... DONE")
*** Tricky use cases related to globals (part 2) ... DONE
> 
> ## Cleanup
> setTimeLimit()
> source("incl/end.R")
[17:27:59.633] plan(): Setting new future strategy stack:
[17:27:59.633] List of future strategies:
[17:27:59.633] 1. FutureStrategy:
[17:27:59.633]    - args: function (..., envir = parent.frame(), workers = "<NULL>")
[17:27:59.633]    - tweaked: FALSE
[17:27:59.633]    - call: future::plan(oplan)
[17:27:59.640] plan(): nbrOfWorkers() = 1
Failed to undo environment variables:
 - Expected environment variables: [n=205] '!ExitCode', 'ALLUSERSPROFILE', 'APPDATA', 'BIBINPUTS', 'BINDIR', 'BSTINPUTS', 'COMMONPROGRAMFILES', 'COMPUTERNAME', 'COMSPEC', 'CURL_CA_BUNDLE', 'CYGWIN', 'CommonProgramFiles(x86)', 'CommonProgramW6432', 'DriverData', 'HOME', 'HOMEDRIVE', 'HOMEPATH', 'JAGS_ROOT', 'JAVA_HOME', 'LANGUAGE', 'LC_COLLATE', 'LC_MONETARY', 'LC_TIME', 'LOCALAPPDATA', 'LOGONSERVER', 'LS_HOME', 'LS_LICENSE_PATH', 'MAKE', 'MAKEFLAGS', 'MAKELEVEL', 'MFLAGS', 'MSMPI_BENCHMARKS', 'MSMPI_BIN', 'MSYS2_ENV_CONV_EXCL', 'NUMBER_OF_PROCESSORS', 'OCL', 'OMP_THREAD_LIMIT', 'OS', 'PATH', 'PATHEXT', 'PROCESSOR_ARCHITECTURE', 'PROCESSOR_IDENTIFIER', 'PROCESSOR_LEVEL', 'PROCESSOR_REVISION', 'PROGRAMFILES', 'PROMPT', 'PSModulePath', 'PUBLIC', 'PWD', 'ProgramData', 'ProgramFiles(x86)', 'ProgramW6432', 'RTOOLS43_HOME', 'RTOOLS44_HOME', 'R_ARCH', 'R_BROWSER', 'R_BZIPCMD', 'R_CMD', 'R_COMPILED_BY', 'R_CRAN_WEB', 'R_CUSTOM_TOOLS_PATH', 'R_CUSTOM_TOOLS_SOFT', 'R_DOC_DIR', 'R_ENVIRON_USER', 'R_GSCMD', 'R_GZIPCMD', 'R_HOME', 'R_INCLUDE_DIR', 'R_INSTALL_TAR', 'R_LIBS', 'R_LIBS_SITE', 'R_LIBS_USER', 'R_MAX_NUM_DLLS', 'R_OSTYPE', 'R_PAPERSIZE', 'R_PAPERSIZE_USER', 'R_PARALLELLY_MAKENODEPSOCK_AUTOKILL', 'R_PARALLELLY_MAKENODEPSOCK_CONNECTTIMEOUT', 'R_PARALLELLY_MAKENODEPSOCK_RSCRIPT_LABEL', 'R_PARALLELLY_MAKENODEPSOCK_SESSIONINFO_PKGS', 'R_PARALLELLY_MAKENODEPSOCK_TIMEOUT', 'R_PARALLELLY_RANDOM_PORTS', 'R_PARALLEL_PORT', 'R_RD4PDF', 'R_RTOOLS44_PATH', 'R_SCRIPT_LEGACY', 'R_SHARE_DIR', 'R_TESTS', 'R_UNZIPCMD', 'R_USER', 'R_VERSION', 'R_ZIPCMD', 'SED', 'SHLVL', 'SYSTEMDRIVE', 'SYSTEMROOT', 'TAR', 'TAR_OPTIONS', 'TEMP', 'TERM', 'TEXINPUTS', 'TMP', 'TMPDIR', 'USERDOMAIN', 'USERDOMAIN_ROAMINGPROFILE', 'USERNAME', 'USERPROFILE', 'WINDIR', '_', '_R_CHECK_AUTOCONF_', '_R_CHECK_BOGUS_RETURN_', '_R_CHECK_BROWSER_NONINTERACTIVE_', '_R_CHECK_BUILD_VIGNETTES_SEPARATELY_', '_R_CHECK_CODETOOLS_PROFILE_', '_R_CHECK_CODE_ASSIGN_TO_GLOBALENV_', '_R_CHECK_CODE_ATTACH_', '_R_CHECK_CODE_CLASS_IS_STRING_', '_R_CHECK_CODE_DATA_INTO_GLOBALENV_', '_R_CHECK_CODE_USAGE_VIA_NAMESPACES_', '_R_CHECK_CODE_USAGE_WITHOUT_LOADING_', '_R_CHECK_CODE_USAGE_WITH_ONLY_BASE_ATTACHED_', '_R_CHECK_CODOC_VARIABLES_IN_USAGES_', '_R_CHECK_COMPACT_DATA2_', '_R_CHECK_COMPILATION_FLAGS_', '_R_CHECK_CONNECTIONS_LEFT_OPEN_', '_R_CHECK_CRAN_INCOMING_', '_R_CHECK_CRAN_INCOMING_CHECK_FILE_URIS_', '_R_CHECK_CRAN_INCOMING_CHECK_URLS_IN_PARALLEL_', '_R_CHECK_CRAN_INCOMING_NOTE_GNU_MAKE_', '_R_CHECK_CRAN_INCOMING_REMOTE_', '_R_CHECK_CRAN_INCOMING_USE_ASPELL_', '_R_CHECK_DATALIST_', '_R_CHECK_DEPRECATED_DEFUNCT_', '_R_CHECK_DOC_SIZES2_', '_R_CHECK_DOT_FIRSTLIB_', '_R_CHECK_DOT_INTERNAL_', '_R_CHECK_EXAMPLE_TIMING_THRESHOLD_', '_R_CHECK_EXECUTABLES_', '_R_CHECK_EXECUTABLES_EXCLUSIONS_', '_R_CHECK_FF_CALLS_', '_R_CHECK_FF_DUP_', '_R_CHECK_FORCE_SUGGESTS_', '_R_CHECK_FUTURE_FILE_TIMESTAMPS_', '_R_CHECK_FUTURE_FILE_TIMESTAMPS_LEEWAY_', '_R_CHECK_HAVE_MYSQL_', '_R_CHECK_HAVE_ODBC_', '_R_CHECK_HAVE_PERL_', '_R_CHECK_HAVE_POSTGRES_', '_R_CHECK_INSTALL_DEPENDS_', '_R_CHECK_INTERNALS2_', '_R_CHECK_LENGTH_1_CONDITION_', '_R_CHECK_LICENSE_', '_R_CHECK_LIMIT_CORES_', '_R_CHECK_MATRIX_DATA_', '_R_CHECK_MBCS_CONVERSION_FAILURE_', '_R_CHECK_NATIVE_ROUTINE_REGISTRATION_', '_R_CHECK_NEWS_IN_PLAIN_TEXT_', '_R_CHECK_NO_RECOMMENDED_', '_R_CHECK_NO_STOP_ON_TEST_ERROR_', '_R_CHECK_ORPHANED_', '_R_CHECK_OVERWRITE_REGISTERED_S3_METHODS_', '_R_CHECK_PACKAGES_USED_IGNORE_UNUSED_IMPORTS_', '_R_CHECK_PACKAGES_USED_IN_TESTS_USE_SUBDIRS_', '_R_CHECK_PACKAGE_DATASETS_SUPPRESS_NOTES_', '_R_CHECK_PACKAGE_NAME_', '_R_CHECK_PKG_SIZES_', '_R_CHECK_PKG_SIZES_THRESHOLD_', '_R_CHECK_PRAGMAS_', '_R_CHECK_RD_EXAMPLES_T_AND_F_', '_R_CHECK_RD_LINE_WIDTHS_', '_R_CHECK_RD_MATH_RENDERING_', '_R_CHECK_RD_NOTE_LOST_BRACES_', '_R_CHECK_RD_VALIDATE_RD2HTML_', '_R_CHECK_REPLACING_IMPORTS_', '_R_CHECK_R_DEPENDS_', '_R_CHECK_S3_METHODS_SHOW_POSSIBLE_ISSUES_', '_R_CHECK_SCREEN_DEVICE_', '_R_CHECK_SERIALIZATION_', '_R_CHECK_SHLIB_OPENMP_FLAGS_', '_R_CHECK_SRC_MINUS_W_IMPLICIT_', '_R_CHECK_SUBDIRS_NOCASE_', '_R_CHECK_SUGGESTS_ONLY_', '_R_CHECK_SYSTEM_CLOCK_', '_R_CHECK_TESTS_NLINES_', '_R_CHECK_TEST_TIMING_', '_R_CHECK_TIMINGS_', '_R_CHECK_TOPLEVEL_FILES_', '_R_CHECK_UNDOC_USE_ALL_NAMES_', '_R_CHECK_UNSAFE_CALLS_', '_R_CHECK_URLS_SHOW_301_STATUS_', '_R_CHECK_VC_DIRS_', '_R_CHECK_VIGNETTES_NLINES_', '_R_CHECK_VIGNETTES_SKIP_RUN_MAYBE_', '_R_CHECK_VIGNETTE_TIMING_', '_R_CHECK_VIGNETTE_TITLES_', '_R_CHECK_WINDOWS_DEVICE_', '_R_CHECK_XREFS_NOTE_MISSING_PACKAGE_ANCHORS_', '_R_CHECK_XREFS_USE_ALIASES_FROM_CRAN_', '_R_CLASS_MATRIX_ARRAY_', '_R_DEPRECATED_IS_R_', '_R_S3_METHOD_LOOKUP_BASEENV_AFTER_GLOBALENV_', '_R_SHLIB_BUILD_OBJECTS_SYMBOL_TABLES_', '__R_CHECK_DOC_FILES_NOTE_IF_ALL_SPECIAL__', 'maj.version', 'nextArg--timingsnextArg--install'
 - Environment variables still there: [n=0] 
 - Environment variables missing: [n=1] 'MAKEFLAGS'
Differences environment variable by environment variable:
List of 3
 $ name    : chr "MAKEFLAGS"
 $ expected: 'Dlist' chr ""
 $ actual  : 'Dlist' chr NA
> 
> proc.time()
   user  system elapsed 
   0.82    0.15    2.21