R Under development (unstable) (2023-12-20 r85713 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> source("incl/start,load-only.R")
[01:29:39.708] plan(): Setting new future strategy stack:
[01:29:39.710] List of future strategies:
[01:29:39.710] 1. sequential:
[01:29:39.710]    - args: function (..., envir = parent.frame(), workers = "<NULL>")
[01:29:39.710]    - tweaked: FALSE
[01:29:39.710]    - call: future::plan("sequential")
[01:29:39.739] plan(): nbrOfWorkers() = 1
> 
> message("*** Tweaking future strategies ...")
*** Tweaking future strategies ...
> 
> message("*** y <- tweak(future::sequential) ...")
*** y <- tweak(future::sequential) ...
> sequential2 <- future::tweak(future::sequential)
> print(args(sequential2))
function (..., envir = parent.frame()) 
NULL
> stopifnot(identical(sequential2, future::sequential))
> stopifnot(!inherits(sequential2, "tweaked"))
> 
> 
> message("*** y <- tweak(future::sequential, abc = FALSE) ...")
*** y <- tweak(future::sequential, abc = FALSE) ...
> sequential2 <- future::tweak(future::sequential, abc = FALSE)
Warning: Detected 1 unknown future arguments: 'abc'
> print(args(sequential2))
function (..., abc = FALSE, envir = parent.frame()) 
NULL
> stopifnot(!identical(sequential2, future::sequential))
> stopifnot(inherits(sequential2, "tweaked"))
> stopifnot(identical(formals(sequential2)$abc, FALSE))
> 
> 
> message("*** y <- tweak('sequential', abc = FALSE) ...")
*** y <- tweak('sequential', abc = FALSE) ...
> sequential2 <- future::tweak("sequential", abc = FALSE)
Warning: Detected 1 unknown future arguments: 'abc'
> print(args(sequential2))
function (..., abc = FALSE, envir = parent.frame()) 
NULL
> stopifnot(!identical(sequential2, future::sequential))
> stopifnot(inherits(sequential2, "tweaked"))
> stopifnot(identical(formals(sequential2)$abc, FALSE))
> 
> 
> library("future")
[01:29:39.755] Option 'future.startup.script': TRUE
[01:29:39.755] Future startup scripts considered: '.future.R', '~/.future.R'
[01:29:39.755] Future startup scripts found: <none>
> 
> message("*** y <- tweak(sequential, abc = FALSE) ...")
*** y <- tweak(sequential, abc = FALSE) ...
> sequential2 <- future::tweak(sequential, abc = FALSE)
Warning: Detected 1 unknown future arguments: 'abc'
> print(args(sequential2))
function (..., abc = FALSE, envir = parent.frame()) 
NULL
> stopifnot(!identical(sequential2, future::sequential))
> stopifnot(inherits(sequential2, "tweaked"))
> stopifnot(identical(formals(sequential2)$abc, FALSE))
> 
> message("*** y <- tweak('sequential', abc = FALSE) ...")
*** y <- tweak('sequential', abc = FALSE) ...
> sequential2 <- future::tweak('sequential', abc = FALSE)
Warning: Detected 1 unknown future arguments: 'abc'
> print(args(sequential2))
function (..., abc = FALSE, envir = parent.frame()) 
NULL
> stopifnot(!identical(sequential2, future::sequential))
> stopifnot(inherits(sequential2, "tweaked"))
> stopifnot(identical(formals(sequential2)$abc, FALSE))
> 
> 
> message("*** y <- tweak('sequential', abc = FALSE, abc = 1, def = TRUE) ...")
*** y <- tweak('sequential', abc = FALSE, abc = 1, def = TRUE) ...
> res <- tryCatch({
+   sequential2 <- future::tweak('sequential', abc = FALSE, abc = 1, def = TRUE)
+ }, warning = function(w) {
+   w
+ })
> stopifnot(inherits(res, "warning"))
> sequential2 <- future::tweak('sequential', abc = FALSE, abc = 1, def = TRUE)
Warning: Detected 2 unknown future arguments: 'abc', 'def'
> print(args(sequential2))
function (..., abc = FALSE, def = TRUE, envir = parent.frame()) 
NULL
> stopifnot(!identical(sequential2, future::sequential))
> stopifnot(inherits(sequential2, "tweaked"))
> stopifnot(identical(formals(sequential2)$abc, FALSE))
> 
> 
> 
> message("*** y <- tweak(cluster, rscript_startup = quote(...)) ...")
*** y <- tweak(cluster, rscript_startup = quote(...)) ...
> cl <- 42L
> cluster2 <- tweak(cluster, workers = cl, rscript_startup = quote(options(abc = 42L)))
> print(args(cluster2))
function (..., workers = 42L, rscript_startup = quote(options(abc = 42L)), 
    envir = parent.frame()) 
NULL
> stopifnot(!identical(cluster2, future::cluster))
> stopifnot(inherits(cluster2, "tweaked"))
> formals2 <- formals(cluster2)
> stopifnot(identical(formals2$workers, cl))
> stopifnot("rscript_startup" %in% names(formals2))
> rscript_startup <- formals2$rscript_startup
> stopifnot(!is.null(rscript_startup),
+           is.language(rscript_startup), is.call(rscript_startup))
> value <- eval(rscript_startup)
> stopifnot(is.language(value), is.call(value))
> 
> 
> message("*** plan() - tweak without introducting package dependencies ...")
*** plan() - tweak without introducting package dependencies ...
> 
> ## Requires a auxillary package that is available and not already loaded
> if (!covr_testing && requireNamespace("grid")) {
+   local({
+     cl <- makeClusterPSOCK(1L)
+     on.exit(parallel:::stopCluster(cl))
+     ns0 <- unlist(parallel::clusterEvalQ(cl, loadedNamespaces()))
+ 
+     ## When using futures, the 'future' package is loaded on the worker
+     ns0 <- c(ns0, c("tools", "parallelly",
+                     "codetools", "digest", "globals", "listenv", "future"))
+     if (!is.element("grid", ns0)) {
+       ## Assert that a global copy from a package does not trigger
+       ## that package from being loaded on the worker
+       dummy <- grid::depth
+       oplan <- future::plan(future::cluster, workers = cl)
+       on.exit(future::plan(oplan), add = TRUE)
+       ns <- unlist(parallel::clusterEvalQ(cl, loadedNamespaces()))
+       diff <- setdiff(ns, ns0)
+       if ("covr" %in% diff) diff <- setdiff(diff, c("lazyeval", "rex", "covr"))
+       if (length(diff) > 0) {
+         print(loadedNamespaces())
+         stop("plan() with a tweak() causes new packages to be loaded: ", sQuote(paste(diff, collapse = ", ")))
+       }
+     }
+   })
+ }
Loading required namespace: grid
[01:29:39.783] [local output] makeClusterPSOCK() ...
[01:29:39.851] [local output] Workers: [n = 1] 'localhost'
[01:29:39.858] [local output] Base port: 27464
[01:29:39.858] [local output] Getting setup options for 1 cluster nodes ...
[01:29:39.859] [local output]  - Node 1 of 1 ...
[01:29:39.859] [local output] localMachine=TRUE => revtunnel=FALSE

[01:29:39.861] Testing if worker's PID can be inferred: '"D:/RCompile/recent/R/bin/x64/Rscript" -e "try(suppressWarnings(cat(Sys.getpid(),file=\"D:/temp/RtmpiauStq/worker.rank=1.parallelly.parent=5224.1468372c37.pid\")), silent = TRUE)" -e "file.exists(\"D:/temp/RtmpiauStq/worker.rank=1.parallelly.parent=5224.1468372c37.pid\")"'
[01:29:40.082] - Possible to infer worker's PID: TRUE
[01:29:40.082] [local output] Rscript port: 27464

[01:29:40.083] [local output] Getting setup options for 1 cluster nodes ... done
[01:29:40.083] [local output]  - Parallel setup requested for some PSOCK nodes
[01:29:40.084] [local output] Setting up PSOCK nodes in parallel
[01:29:40.085] List of 36
[01:29:40.085]  $ worker          : chr "localhost"
[01:29:40.085]   ..- attr(*, "localhost")= logi TRUE
[01:29:40.085]  $ master          : chr "localhost"
[01:29:40.085]  $ port            : int 27464
[01:29:40.085]  $ connectTimeout  : num 120
[01:29:40.085]  $ timeout         : num 120
[01:29:40.085]  $ rscript         : chr "\"D:/RCompile/recent/R/bin/x64/Rscript\""
[01:29:40.085]  $ homogeneous     : logi TRUE
[01:29:40.085]  $ rscript_args    : chr "--default-packages=datasets,utils,grDevices,graphics,stats,methods -e \"#label=tweak.R:5224:CRANWIN3:CRAN\" -e "| __truncated__
[01:29:40.085]  $ rscript_envs    : NULL
[01:29:40.085]  $ rscript_libs    : NULL
[01:29:40.085]  $ rscript_startup : NULL
[01:29:40.085]  $ rscript_sh      : chr "cmd"
[01:29:40.085]  $ default_packages: chr [1:6] "datasets" "utils" "grDevices" "graphics" ...
[01:29:40.085]  $ methods         : logi TRUE
[01:29:40.085]  $ socketOptions   : chr "no-delay"
[01:29:40.085]  $ useXDR          : logi FALSE
[01:29:40.085]  $ outfile         : chr "/dev/null"
[01:29:40.085]  $ renice          : int NA
[01:29:40.085]  $ rshcmd          : NULL
[01:29:40.085]  $ user            : chr(0) 
[01:29:40.085]  $ revtunnel       : logi FALSE
[01:29:40.085]  $ rshlogfile      : NULL
[01:29:40.085]  $ rshopts         : chr(0) 
[01:29:40.085]  $ rank            : int 1
[01:29:40.085]  $ manual          : logi FALSE
[01:29:40.085]  $ dryrun          : logi FALSE
[01:29:40.085]  $ quiet           : logi FALSE
[01:29:40.085]  $ setup_strategy  : chr "parallel"
[01:29:40.085]  $ local_cmd       : chr "\"D:/RCompile/recent/R/bin/x64/Rscript\" --default-packages=datasets,utils,grDevices,graphics,stats,methods -e "| __truncated__
[01:29:40.085]  $ pidfile         : chr "D:/temp/RtmpiauStq/worker.rank=1.parallelly.parent=5224.1468372c37.pid"
[01:29:40.085]  $ rshcmd_label    : NULL
[01:29:40.085]  $ rsh_call        : NULL
[01:29:40.085]  $ cmd             : chr "\"D:/RCompile/recent/R/bin/x64/Rscript\" --default-packages=datasets,utils,grDevices,graphics,stats,methods -e "| __truncated__
[01:29:40.085]  $ localMachine    : logi TRUE
[01:29:40.085]  $ make_fcn        :function (worker = getOption2("parallelly.localhost.hostname", "localhost"), 
[01:29:40.085]     master = NULL, port, connectTimeout = getOption2("parallelly.makeNodePSOCK.connectTimeout", 
[01:29:40.085]         2 * 60), timeout = getOption2("parallelly.makeNodePSOCK.timeout", 
[01:29:40.085]         30 * 24 * 60 * 60), rscript = NULL, homogeneous = NULL, rscript_args = NULL, 
[01:29:40.085]     rscript_envs = NULL, rscript_libs = NULL, rscript_startup = NULL, rscript_sh = c("auto", 
[01:29:40.085]         "cmd", "sh"), default_packages = c("datasets", "utils", "grDevices", 
[01:29:40.085]         "graphics", "stats", if (methods) "methods"), methods = TRUE, socketOptions = getOption2("parallelly.makeNodePSOCK.socketOptions", 
[01:29:40.085]         "no-delay"), useXDR = getOption2("parallelly.makeNodePSOCK.useXDR", 
[01:29:40.085]         FALSE), outfile = "/dev/null", renice = NA_integer_, rshcmd = getOption2("parallelly.makeNodePSOCK.rshcmd", 
[01:29:40.085]         NULL), user = NULL, revtunnel = NA, rshlogfile = NULL, rshopts = getOption2("parallelly.makeNodePSOCK.rshopts", 
[01:29:40.085]         NULL), rank = 1L, manual = FALSE, dryrun = FALSE, quiet = FALSE, 
[01:29:40.085]     setup_strategy = getOption2("parallelly.makeNodePSOCK.setup_strategy", 
[01:29:40.085]         "parallel"), action = c("launch", "options"), verbose = FALSE)  
[01:29:40.085]  $ arguments       :List of 28
[01:29:40.085]   ..$ worker          : chr "localhost"
[01:29:40.085]   ..$ master          : NULL
[01:29:40.085]   ..$ port            : int 27464
[01:29:40.085]   ..$ connectTimeout  : num 120
[01:29:40.085]   ..$ timeout         : num 120
[01:29:40.085]   ..$ rscript         : NULL
[01:29:40.085]   ..$ homogeneous     : NULL
[01:29:40.085]   ..$ rscript_args    : NULL
[01:29:40.085]   ..$ rscript_envs    : NULL
[01:29:40.085]   ..$ rscript_libs    : NULL
[01:29:40.085]   ..$ rscript_startup : NULL
[01:29:40.085]   ..$ rscript_sh      : chr [1:3] "auto" "cmd" "sh"
[01:29:40.085]   ..$ default_packages: chr [1:6] "datasets" "utils" "grDevices" "graphics" ...
[01:29:40.085]   ..$ methods         : logi TRUE
[01:29:40.085]   ..$ socketOptions   : chr "no-delay"
[01:29:40.085]   ..$ useXDR          : logi FALSE
[01:29:40.085]   ..$ outfile         : chr "/dev/null"
[01:29:40.085]   ..$ renice          : int NA
[01:29:40.085]   ..$ rshcmd          : NULL
[01:29:40.085]   ..$ user            : NULL
[01:29:40.085]   ..$ revtunnel       : logi NA
[01:29:40.085]   ..$ rshlogfile      : NULL
[01:29:40.085]   ..$ rshopts         : NULL
[01:29:40.085]   ..$ rank            : int 1
[01:29:40.085]   ..$ manual          : logi FALSE
[01:29:40.085]   ..$ dryrun          : logi FALSE
[01:29:40.085]   ..$ quiet           : logi FALSE
[01:29:40.085]   ..$ setup_strategy  : chr "parallel"
[01:29:40.085]  - attr(*, "class")= chr [1:2] "makeNodePSOCKOptions" "makeNodeOptions"
[01:29:40.113] [local output] System call to launch all workers:
[01:29:40.114] [local output] "D:/RCompile/recent/R/bin/x64/Rscript" --default-packages=datasets,utils,grDevices,graphics,stats,methods -e "#label=tweak.R:5224:CRANWIN3:CRAN" -e "try(suppressWarnings(cat(Sys.getpid(),file=\"D:/temp/RtmpiauStq/worker.rank=1.parallelly.parent=5224.1468372c37.pid\")), silent = TRUE)" -e "options(socketOptions = \"no-delay\")" -e "workRSOCK <- tryCatch(parallel:::.workRSOCK, error=function(e) parallel:::.slaveRSOCK); workRSOCK()" MASTER=localhost PORT=27464 OUT=/dev/null TIMEOUT=120 XDR=FALSE SETUPTIMEOUT=120 SETUPSTRATEGY=parallel
[01:29:40.114] [local output] Starting PSOCK main server
[01:29:40.118] [local output] Workers launched
[01:29:40.118] [local output] Waiting for workers to connect back
[01:29:40.118]  - [local output] 0 workers out of 1 ready
[01:29:40.295]  - [local output] 0 workers out of 1 ready
[01:29:40.296]  - [local output] 1 workers out of 1 ready
[01:29:40.296] [local output] Launching of workers completed
[01:29:40.296] [local output] Collecting session information from workers
[01:29:40.297] [local output]  - Worker #1 of 1
[01:29:40.297] [local output] makeClusterPSOCK() ... done
[01:29:40.298] plan(): Setting new future strategy stack:
[01:29:40.298] List of future strategies:
[01:29:40.298] 1. cluster:
[01:29:40.298]    - args: function (..., workers = "<Socket cluster with 1 nodes where 1 node is on host 'localhost' (R Under development (unstable) (2023-12-20 r85713 ucrt), platform x86_64-w64-mingw32)>", envir = parent.frame())
[01:29:40.298]    - tweaked: TRUE
[01:29:40.298]    - call: future::plan(future::cluster, workers = cl)
[01:29:40.319] plan(): plan_init() of 'tweaked', 'cluster', 'multiprocess', 'future', 'function' ...
[01:29:40.319] cluster:
[01:29:40.319] - args: function (..., workers = "<Socket cluster with 1 nodes where 1 node is on host 'localhost' (R Under development (unstable) (2023-12-20 r85713 ucrt), platform x86_64-w64-mingw32)>", envir = parent.frame())
[01:29:40.319] - tweaked: TRUE
[01:29:40.319] - call: future::plan(future::cluster, workers = cl)
[01:29:40.323] getGlobalsAndPackages() ...
[01:29:40.323] Not searching for globals
[01:29:40.324] - globals: [0] <none>
[01:29:40.324] getGlobalsAndPackages() ... DONE
[01:29:40.332] Packages needed by the future expression (n = 0): <none>
[01:29:40.332] Packages needed by future strategies (n = 0): <none>
[01:29:40.334] {
[01:29:40.334]     {
[01:29:40.334]         {
[01:29:40.334]             ...future.startTime <- base::Sys.time()
[01:29:40.334]             {
[01:29:40.334]                 {
[01:29:40.334]                   {
[01:29:40.334]                     base::local({
[01:29:40.334]                       has_future <- base::requireNamespace("future", 
[01:29:40.334]                         quietly = TRUE)
[01:29:40.334]                       if (has_future) {
[01:29:40.334]                         ns <- base::getNamespace("future")
[01:29:40.334]                         version <- ns[[".package"]][["version"]]
[01:29:40.334]                         if (is.null(version)) 
[01:29:40.334]                           version <- utils::packageVersion("future")
[01:29:40.334]                       }
[01:29:40.334]                       else {
[01:29:40.334]                         version <- NULL
[01:29:40.334]                       }
[01:29:40.334]                       if (!has_future || version < "1.8.0") {
[01:29:40.334]                         info <- base::c(r_version = base::gsub("R version ", 
[01:29:40.334]                           "", base::R.version$version.string), 
[01:29:40.334]                           platform = base::sprintf("%s (%s-bit)", 
[01:29:40.334]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[01:29:40.334]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[01:29:40.334]                             "release", "version")], collapse = " "), 
[01:29:40.334]                           hostname = base::Sys.info()[["nodename"]])
[01:29:40.334]                         info <- base::sprintf("%s: %s", base::names(info), 
[01:29:40.334]                           info)
[01:29:40.334]                         info <- base::paste(info, collapse = "; ")
[01:29:40.334]                         if (!has_future) {
[01:29:40.334]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[01:29:40.334]                             info)
[01:29:40.334]                         }
[01:29:40.334]                         else {
[01:29:40.334]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[01:29:40.334]                             info, version)
[01:29:40.334]                         }
[01:29:40.334]                         base::stop(msg)
[01:29:40.334]                       }
[01:29:40.334]                     })
[01:29:40.334]                   }
[01:29:40.334]                   options(future.plan = NULL)
[01:29:40.334]                   Sys.unsetenv("R_FUTURE_PLAN")
[01:29:40.334]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[01:29:40.334]                 }
[01:29:40.334]                 ...future.workdir <- getwd()
[01:29:40.334]             }
[01:29:40.334]             ...future.oldOptions <- base::as.list(base::.Options)
[01:29:40.334]             ...future.oldEnvVars <- base::Sys.getenv()
[01:29:40.334]         }
[01:29:40.334]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[01:29:40.334]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[01:29:40.334]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[01:29:40.334]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[01:29:40.334]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[01:29:40.334]             future.stdout.windows.reencode = NULL, width = 80L)
[01:29:40.334]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[01:29:40.334]             base::names(...future.oldOptions))
[01:29:40.334]     }
[01:29:40.334]     if (FALSE) {
[01:29:40.334]     }
[01:29:40.334]     else {
[01:29:40.334]         if (TRUE) {
[01:29:40.334]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[01:29:40.334]                 open = "w")
[01:29:40.334]         }
[01:29:40.334]         else {
[01:29:40.334]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[01:29:40.334]                 windows = "NUL", "/dev/null"), open = "w")
[01:29:40.334]         }
[01:29:40.334]         base::sink(...future.stdout, type = "output", split = FALSE)
[01:29:40.334]         base::on.exit(if (!base::is.null(...future.stdout)) {
[01:29:40.334]             base::sink(type = "output", split = FALSE)
[01:29:40.334]             base::close(...future.stdout)
[01:29:40.334]         }, add = TRUE)
[01:29:40.334]     }
[01:29:40.334]     ...future.frame <- base::sys.nframe()
[01:29:40.334]     ...future.conditions <- base::list()
[01:29:40.334]     ...future.rng <- base::globalenv()$.Random.seed
[01:29:40.334]     if (FALSE) {
[01:29:40.334]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[01:29:40.334]             "...future.value", "...future.globalenv.names", ".Random.seed")
[01:29:40.334]     }
[01:29:40.334]     ...future.result <- base::tryCatch({
[01:29:40.334]         base::withCallingHandlers({
[01:29:40.334]             ...future.value <- base::withVisible(base::local({
[01:29:40.334]                 ...future.makeSendCondition <- base::local({
[01:29:40.334]                   sendCondition <- NULL
[01:29:40.334]                   function(frame = 1L) {
[01:29:40.334]                     if (is.function(sendCondition)) 
[01:29:40.334]                       return(sendCondition)
[01:29:40.334]                     ns <- getNamespace("parallel")
[01:29:40.334]                     if (exists("sendData", mode = "function", 
[01:29:40.334]                       envir = ns)) {
[01:29:40.334]                       parallel_sendData <- get("sendData", mode = "function", 
[01:29:40.334]                         envir = ns)
[01:29:40.334]                       envir <- sys.frame(frame)
[01:29:40.334]                       master <- NULL
[01:29:40.334]                       while (!identical(envir, .GlobalEnv) && 
[01:29:40.334]                         !identical(envir, emptyenv())) {
[01:29:40.334]                         if (exists("master", mode = "list", envir = envir, 
[01:29:40.334]                           inherits = FALSE)) {
[01:29:40.334]                           master <- get("master", mode = "list", 
[01:29:40.334]                             envir = envir, inherits = FALSE)
[01:29:40.334]                           if (inherits(master, c("SOCKnode", 
[01:29:40.334]                             "SOCK0node"))) {
[01:29:40.334]                             sendCondition <<- function(cond) {
[01:29:40.334]                               data <- list(type = "VALUE", value = cond, 
[01:29:40.334]                                 success = TRUE)
[01:29:40.334]                               parallel_sendData(master, data)
[01:29:40.334]                             }
[01:29:40.334]                             return(sendCondition)
[01:29:40.334]                           }
[01:29:40.334]                         }
[01:29:40.334]                         frame <- frame + 1L
[01:29:40.334]                         envir <- sys.frame(frame)
[01:29:40.334]                       }
[01:29:40.334]                     }
[01:29:40.334]                     sendCondition <<- function(cond) NULL
[01:29:40.334]                   }
[01:29:40.334]                 })
[01:29:40.334]                 withCallingHandlers({
[01:29:40.334]                   NA
[01:29:40.334]                 }, immediateCondition = function(cond) {
[01:29:40.334]                   sendCondition <- ...future.makeSendCondition()
[01:29:40.334]                   sendCondition(cond)
[01:29:40.334]                   muffleCondition <- function (cond, pattern = "^muffle") 
[01:29:40.334]                   {
[01:29:40.334]                     inherits <- base::inherits
[01:29:40.334]                     invokeRestart <- base::invokeRestart
[01:29:40.334]                     is.null <- base::is.null
[01:29:40.334]                     muffled <- FALSE
[01:29:40.334]                     if (inherits(cond, "message")) {
[01:29:40.334]                       muffled <- grepl(pattern, "muffleMessage")
[01:29:40.334]                       if (muffled) 
[01:29:40.334]                         invokeRestart("muffleMessage")
[01:29:40.334]                     }
[01:29:40.334]                     else if (inherits(cond, "warning")) {
[01:29:40.334]                       muffled <- grepl(pattern, "muffleWarning")
[01:29:40.334]                       if (muffled) 
[01:29:40.334]                         invokeRestart("muffleWarning")
[01:29:40.334]                     }
[01:29:40.334]                     else if (inherits(cond, "condition")) {
[01:29:40.334]                       if (!is.null(pattern)) {
[01:29:40.334]                         computeRestarts <- base::computeRestarts
[01:29:40.334]                         grepl <- base::grepl
[01:29:40.334]                         restarts <- computeRestarts(cond)
[01:29:40.334]                         for (restart in restarts) {
[01:29:40.334]                           name <- restart$name
[01:29:40.334]                           if (is.null(name)) 
[01:29:40.334]                             next
[01:29:40.334]                           if (!grepl(pattern, name)) 
[01:29:40.334]                             next
[01:29:40.334]                           invokeRestart(restart)
[01:29:40.334]                           muffled <- TRUE
[01:29:40.334]                           break
[01:29:40.334]                         }
[01:29:40.334]                       }
[01:29:40.334]                     }
[01:29:40.334]                     invisible(muffled)
[01:29:40.334]                   }
[01:29:40.334]                   muffleCondition(cond)
[01:29:40.334]                 })
[01:29:40.334]             }))
[01:29:40.334]             future::FutureResult(value = ...future.value$value, 
[01:29:40.334]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[01:29:40.334]                   ...future.rng), globalenv = if (FALSE) 
[01:29:40.334]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[01:29:40.334]                     ...future.globalenv.names))
[01:29:40.334]                 else NULL, started = ...future.startTime, version = "1.8")
[01:29:40.334]         }, condition = base::local({
[01:29:40.334]             c <- base::c
[01:29:40.334]             inherits <- base::inherits
[01:29:40.334]             invokeRestart <- base::invokeRestart
[01:29:40.334]             length <- base::length
[01:29:40.334]             list <- base::list
[01:29:40.334]             seq.int <- base::seq.int
[01:29:40.334]             signalCondition <- base::signalCondition
[01:29:40.334]             sys.calls <- base::sys.calls
[01:29:40.334]             `[[` <- base::`[[`
[01:29:40.334]             `+` <- base::`+`
[01:29:40.334]             `<<-` <- base::`<<-`
[01:29:40.334]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[01:29:40.334]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[01:29:40.334]                   3L)]
[01:29:40.334]             }
[01:29:40.334]             function(cond) {
[01:29:40.334]                 is_error <- inherits(cond, "error")
[01:29:40.334]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[01:29:40.334]                   NULL)
[01:29:40.334]                 if (is_error) {
[01:29:40.334]                   sessionInformation <- function() {
[01:29:40.334]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[01:29:40.334]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[01:29:40.334]                       search = base::search(), system = base::Sys.info())
[01:29:40.334]                   }
[01:29:40.334]                   ...future.conditions[[length(...future.conditions) + 
[01:29:40.334]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[01:29:40.334]                     cond$call), session = sessionInformation(), 
[01:29:40.334]                     timestamp = base::Sys.time(), signaled = 0L)
[01:29:40.334]                   signalCondition(cond)
[01:29:40.334]                 }
[01:29:40.334]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[01:29:40.334]                 "immediateCondition"))) {
[01:29:40.334]                   signal <- TRUE && inherits(cond, "immediateCondition")
[01:29:40.334]                   ...future.conditions[[length(...future.conditions) + 
[01:29:40.334]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[01:29:40.334]                   if (TRUE && !signal) {
[01:29:40.334]                     muffleCondition <- function (cond, pattern = "^muffle") 
[01:29:40.334]                     {
[01:29:40.334]                       inherits <- base::inherits
[01:29:40.334]                       invokeRestart <- base::invokeRestart
[01:29:40.334]                       is.null <- base::is.null
[01:29:40.334]                       muffled <- FALSE
[01:29:40.334]                       if (inherits(cond, "message")) {
[01:29:40.334]                         muffled <- grepl(pattern, "muffleMessage")
[01:29:40.334]                         if (muffled) 
[01:29:40.334]                           invokeRestart("muffleMessage")
[01:29:40.334]                       }
[01:29:40.334]                       else if (inherits(cond, "warning")) {
[01:29:40.334]                         muffled <- grepl(pattern, "muffleWarning")
[01:29:40.334]                         if (muffled) 
[01:29:40.334]                           invokeRestart("muffleWarning")
[01:29:40.334]                       }
[01:29:40.334]                       else if (inherits(cond, "condition")) {
[01:29:40.334]                         if (!is.null(pattern)) {
[01:29:40.334]                           computeRestarts <- base::computeRestarts
[01:29:40.334]                           grepl <- base::grepl
[01:29:40.334]                           restarts <- computeRestarts(cond)
[01:29:40.334]                           for (restart in restarts) {
[01:29:40.334]                             name <- restart$name
[01:29:40.334]                             if (is.null(name)) 
[01:29:40.334]                               next
[01:29:40.334]                             if (!grepl(pattern, name)) 
[01:29:40.334]                               next
[01:29:40.334]                             invokeRestart(restart)
[01:29:40.334]                             muffled <- TRUE
[01:29:40.334]                             break
[01:29:40.334]                           }
[01:29:40.334]                         }
[01:29:40.334]                       }
[01:29:40.334]                       invisible(muffled)
[01:29:40.334]                     }
[01:29:40.334]                     muffleCondition(cond, pattern = "^muffle")
[01:29:40.334]                   }
[01:29:40.334]                 }
[01:29:40.334]                 else {
[01:29:40.334]                   if (TRUE) {
[01:29:40.334]                     muffleCondition <- function (cond, pattern = "^muffle") 
[01:29:40.334]                     {
[01:29:40.334]                       inherits <- base::inherits
[01:29:40.334]                       invokeRestart <- base::invokeRestart
[01:29:40.334]                       is.null <- base::is.null
[01:29:40.334]                       muffled <- FALSE
[01:29:40.334]                       if (inherits(cond, "message")) {
[01:29:40.334]                         muffled <- grepl(pattern, "muffleMessage")
[01:29:40.334]                         if (muffled) 
[01:29:40.334]                           invokeRestart("muffleMessage")
[01:29:40.334]                       }
[01:29:40.334]                       else if (inherits(cond, "warning")) {
[01:29:40.334]                         muffled <- grepl(pattern, "muffleWarning")
[01:29:40.334]                         if (muffled) 
[01:29:40.334]                           invokeRestart("muffleWarning")
[01:29:40.334]                       }
[01:29:40.334]                       else if (inherits(cond, "condition")) {
[01:29:40.334]                         if (!is.null(pattern)) {
[01:29:40.334]                           computeRestarts <- base::computeRestarts
[01:29:40.334]                           grepl <- base::grepl
[01:29:40.334]                           restarts <- computeRestarts(cond)
[01:29:40.334]                           for (restart in restarts) {
[01:29:40.334]                             name <- restart$name
[01:29:40.334]                             if (is.null(name)) 
[01:29:40.334]                               next
[01:29:40.334]                             if (!grepl(pattern, name)) 
[01:29:40.334]                               next
[01:29:40.334]                             invokeRestart(restart)
[01:29:40.334]                             muffled <- TRUE
[01:29:40.334]                             break
[01:29:40.334]                           }
[01:29:40.334]                         }
[01:29:40.334]                       }
[01:29:40.334]                       invisible(muffled)
[01:29:40.334]                     }
[01:29:40.334]                     muffleCondition(cond, pattern = "^muffle")
[01:29:40.334]                   }
[01:29:40.334]                 }
[01:29:40.334]             }
[01:29:40.334]         }))
[01:29:40.334]     }, error = function(ex) {
[01:29:40.334]         base::structure(base::list(value = NULL, visible = NULL, 
[01:29:40.334]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[01:29:40.334]                 ...future.rng), started = ...future.startTime, 
[01:29:40.334]             finished = Sys.time(), session_uuid = NA_character_, 
[01:29:40.334]             version = "1.8"), class = "FutureResult")
[01:29:40.334]     }, finally = {
[01:29:40.334]         if (!identical(...future.workdir, getwd())) 
[01:29:40.334]             setwd(...future.workdir)
[01:29:40.334]         {
[01:29:40.334]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[01:29:40.334]                 ...future.oldOptions$nwarnings <- NULL
[01:29:40.334]             }
[01:29:40.334]             base::options(...future.oldOptions)
[01:29:40.334]             if (.Platform$OS.type == "windows") {
[01:29:40.334]                 old_names <- names(...future.oldEnvVars)
[01:29:40.334]                 envs <- base::Sys.getenv()
[01:29:40.334]                 names <- names(envs)
[01:29:40.334]                 common <- intersect(names, old_names)
[01:29:40.334]                 added <- setdiff(names, old_names)
[01:29:40.334]                 removed <- setdiff(old_names, names)
[01:29:40.334]                 changed <- common[...future.oldEnvVars[common] != 
[01:29:40.334]                   envs[common]]
[01:29:40.334]                 NAMES <- toupper(changed)
[01:29:40.334]                 args <- list()
[01:29:40.334]                 for (kk in seq_along(NAMES)) {
[01:29:40.334]                   name <- changed[[kk]]
[01:29:40.334]                   NAME <- NAMES[[kk]]
[01:29:40.334]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.334]                     next
[01:29:40.334]                   args[[name]] <- ...future.oldEnvVars[[name]]
[01:29:40.334]                 }
[01:29:40.334]                 NAMES <- toupper(added)
[01:29:40.334]                 for (kk in seq_along(NAMES)) {
[01:29:40.334]                   name <- added[[kk]]
[01:29:40.334]                   NAME <- NAMES[[kk]]
[01:29:40.334]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.334]                     next
[01:29:40.334]                   args[[name]] <- ""
[01:29:40.334]                 }
[01:29:40.334]                 NAMES <- toupper(removed)
[01:29:40.334]                 for (kk in seq_along(NAMES)) {
[01:29:40.334]                   name <- removed[[kk]]
[01:29:40.334]                   NAME <- NAMES[[kk]]
[01:29:40.334]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.334]                     next
[01:29:40.334]                   args[[name]] <- ...future.oldEnvVars[[name]]
[01:29:40.334]                 }
[01:29:40.334]                 if (length(args) > 0) 
[01:29:40.334]                   base::do.call(base::Sys.setenv, args = args)
[01:29:40.334]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[01:29:40.334]             }
[01:29:40.334]             else {
[01:29:40.334]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[01:29:40.334]             }
[01:29:40.334]             {
[01:29:40.334]                 if (base::length(...future.futureOptionsAdded) > 
[01:29:40.334]                   0L) {
[01:29:40.334]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[01:29:40.334]                   base::names(opts) <- ...future.futureOptionsAdded
[01:29:40.334]                   base::options(opts)
[01:29:40.334]                 }
[01:29:40.334]                 {
[01:29:40.334]                   NULL
[01:29:40.334]                   options(future.plan = NULL)
[01:29:40.334]                   if (is.na(NA_character_)) 
[01:29:40.334]                     Sys.unsetenv("R_FUTURE_PLAN")
[01:29:40.334]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[01:29:40.334]                   future::plan(list(function (..., workers = list(
[01:29:40.334]                     list(con = 4L, host = "localhost", rank = 0L, 
[01:29:40.334]                       session_info = list(r = list(platform = "x86_64-w64-mingw32", 
[01:29:40.334]                         arch = "x86_64", os = "mingw32", crt = "ucrt", 
[01:29:40.334]                         system = "x86_64, mingw32", status = "Under development (unstable)", 
[01:29:40.334]                         major = "4", minor = "4.0", year = "2023", 
[01:29:40.334]                         month = "12", day = "20", `svn rev` = "85713", 
[01:29:40.334]                         language = "R", version.string = "R Under development (unstable) (2023-12-20 r85713 ucrt)", 
[01:29:40.334]                         nickname = "Unsuffered Consequences", 
[01:29:40.334]                         os.type = "windows"), system = list(sysname = "Windows", 
[01:29:40.334]                         release = "Server x64", version = "build 20348", 
[01:29:40.334]                         nodename = "CRANWIN3", machine = "x86-64", 
[01:29:40.334]                         login = "CRAN", user = "CRAN", effective_user = "CRAN"), 
[01:29:40.334]                         libs = c("D:/temp/RtmpCIb4qz/RLIBS_32fc52ae7b47", 
[01:29:40.334]                         "D:/RCompile/recent/R/library"), pkgs = NULL, 
[01:29:40.334]                         pwd = "d:/RCompile/CRANincoming/R-devel/future.Rcheck/tests", 
[01:29:40.334]                         process = list(pid = 12068L)))), envir = parent.frame()) 
[01:29:40.334]                   strategy(..., workers = workers, envir = envir)), 
[01:29:40.334]                     .cleanup = FALSE, .init = FALSE)
[01:29:40.334]                 }
[01:29:40.334]             }
[01:29:40.334]         }
[01:29:40.334]     })
[01:29:40.334]     if (TRUE) {
[01:29:40.334]         base::sink(type = "output", split = FALSE)
[01:29:40.334]         if (TRUE) {
[01:29:40.334]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[01:29:40.334]         }
[01:29:40.334]         else {
[01:29:40.334]             ...future.result["stdout"] <- base::list(NULL)
[01:29:40.334]         }
[01:29:40.334]         base::close(...future.stdout)
[01:29:40.334]         ...future.stdout <- NULL
[01:29:40.334]     }
[01:29:40.334]     ...future.result$conditions <- ...future.conditions
[01:29:40.334]     ...future.result$finished <- base::Sys.time()
[01:29:40.334]     ...future.result
[01:29:40.334] }
[01:29:40.419] ClusterFuture started
[01:29:40.419] result() for ClusterFuture ...
[01:29:40.420] receiveMessageFromWorker() for ClusterFuture ...
[01:29:40.420] - Validating connection of ClusterFuture
[01:29:40.473] - received message: FutureResult
[01:29:40.474] - Received FutureResult
[01:29:40.477] - Erased future from FutureRegistry
[01:29:40.477] result() for ClusterFuture ...
[01:29:40.478] - result already collected: FutureResult
[01:29:40.478] result() for ClusterFuture ... done
[01:29:40.478] receiveMessageFromWorker() for ClusterFuture ... done
[01:29:40.478] result() for ClusterFuture ... done
[01:29:40.478] result() for ClusterFuture ...
[01:29:40.479] - result already collected: FutureResult
[01:29:40.479] result() for ClusterFuture ... done
[01:29:40.479] plan(): plan_init() of 'tweaked', 'cluster', 'multiprocess', 'future', 'function' ... DONE
[01:29:40.479] plan(): nbrOfWorkers() = 1
[01:29:40.480] plan(): Setting new future strategy stack:
[01:29:40.480] List of future strategies:
[01:29:40.480] 1. sequential:
[01:29:40.480]    - args: function (..., envir = parent.frame(), workers = "<NULL>")
[01:29:40.480]    - tweaked: FALSE
[01:29:40.480]    - call: future::plan("sequential")
[01:29:40.481] plan(): nbrOfWorkers() = 1
> 
> message("*** plan() - tweak without introducting package dependencies ... DONE")
*** plan() - tweak without introducting package dependencies ... DONE
> 
> 
> message("*** y %<-% { expr } %tweak% tweaks ...")
*** y %<-% { expr } %tweak% tweaks ...
> 
> plan(sequential)
[01:29:40.482] plan(): Setting new future strategy stack:
[01:29:40.482] List of future strategies:
[01:29:40.482] 1. sequential:
[01:29:40.482]    - args: function (..., envir = parent.frame(), workers = "<NULL>")
[01:29:40.482]    - tweaked: FALSE
[01:29:40.482]    - call: plan(sequential)
[01:29:40.483] plan(): nbrOfWorkers() = 1
> 
> a <- 0
> x %<-% { a <- 1; a }
[01:29:40.484] getGlobalsAndPackages() ...
[01:29:40.485] Searching for globals...
[01:29:40.491] - globals found: [2] '{', '<-'
[01:29:40.492] Searching for globals ... DONE
[01:29:40.492] Resolving globals: FALSE
[01:29:40.493] 
[01:29:40.497] 
[01:29:40.497] getGlobalsAndPackages() ... DONE
[01:29:40.497] run() for 'Future' ...
[01:29:40.498] - state: 'created'
[01:29:40.498] - Future backend: 'FutureStrategy', 'sequential', 'uniprocess', 'future', 'function'
[01:29:40.498] - Future class: 'SequentialFuture', 'UniprocessFuture', 'Future', 'environment'
[01:29:40.499] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ...
[01:29:40.499]   - Field: 'label'
[01:29:40.499]   - Field: 'local'
[01:29:40.499]   - Field: 'owner'
[01:29:40.499]   - Field: 'envir'
[01:29:40.499]   - Field: 'packages'
[01:29:40.500]   - Field: 'gc'
[01:29:40.500]   - Field: 'conditions'
[01:29:40.500]   - Field: 'expr'
[01:29:40.500]   - Field: 'uuid'
[01:29:40.500]   - Field: 'seed'
[01:29:40.501]   - Field: 'version'
[01:29:40.501]   - Field: 'result'
[01:29:40.501]   - Field: 'asynchronous'
[01:29:40.501]   - Field: 'calls'
[01:29:40.501]   - Field: 'globals'
[01:29:40.501]   - Field: 'stdout'
[01:29:40.502]   - Field: 'earlySignal'
[01:29:40.502]   - Field: 'lazy'
[01:29:40.502]   - Field: 'state'
[01:29:40.502] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ... done
[01:29:40.502] - Launch lazy future ...
[01:29:40.503] Packages needed by the future expression (n = 0): <none>
[01:29:40.503] Packages needed by future strategies (n = 0): <none>
[01:29:40.504] {
[01:29:40.504]     {
[01:29:40.504]         {
[01:29:40.504]             ...future.startTime <- base::Sys.time()
[01:29:40.504]             {
[01:29:40.504]                 {
[01:29:40.504]                   {
[01:29:40.504]                     base::local({
[01:29:40.504]                       has_future <- base::requireNamespace("future", 
[01:29:40.504]                         quietly = TRUE)
[01:29:40.504]                       if (has_future) {
[01:29:40.504]                         ns <- base::getNamespace("future")
[01:29:40.504]                         version <- ns[[".package"]][["version"]]
[01:29:40.504]                         if (is.null(version)) 
[01:29:40.504]                           version <- utils::packageVersion("future")
[01:29:40.504]                       }
[01:29:40.504]                       else {
[01:29:40.504]                         version <- NULL
[01:29:40.504]                       }
[01:29:40.504]                       if (!has_future || version < "1.8.0") {
[01:29:40.504]                         info <- base::c(r_version = base::gsub("R version ", 
[01:29:40.504]                           "", base::R.version$version.string), 
[01:29:40.504]                           platform = base::sprintf("%s (%s-bit)", 
[01:29:40.504]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[01:29:40.504]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[01:29:40.504]                             "release", "version")], collapse = " "), 
[01:29:40.504]                           hostname = base::Sys.info()[["nodename"]])
[01:29:40.504]                         info <- base::sprintf("%s: %s", base::names(info), 
[01:29:40.504]                           info)
[01:29:40.504]                         info <- base::paste(info, collapse = "; ")
[01:29:40.504]                         if (!has_future) {
[01:29:40.504]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[01:29:40.504]                             info)
[01:29:40.504]                         }
[01:29:40.504]                         else {
[01:29:40.504]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[01:29:40.504]                             info, version)
[01:29:40.504]                         }
[01:29:40.504]                         base::stop(msg)
[01:29:40.504]                       }
[01:29:40.504]                     })
[01:29:40.504]                   }
[01:29:40.504]                   options(future.plan = NULL)
[01:29:40.504]                   Sys.unsetenv("R_FUTURE_PLAN")
[01:29:40.504]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[01:29:40.504]                 }
[01:29:40.504]                 ...future.workdir <- getwd()
[01:29:40.504]             }
[01:29:40.504]             ...future.oldOptions <- base::as.list(base::.Options)
[01:29:40.504]             ...future.oldEnvVars <- base::Sys.getenv()
[01:29:40.504]         }
[01:29:40.504]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[01:29:40.504]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[01:29:40.504]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[01:29:40.504]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[01:29:40.504]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[01:29:40.504]             future.stdout.windows.reencode = NULL, width = 80L)
[01:29:40.504]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[01:29:40.504]             base::names(...future.oldOptions))
[01:29:40.504]     }
[01:29:40.504]     if (FALSE) {
[01:29:40.504]     }
[01:29:40.504]     else {
[01:29:40.504]         if (TRUE) {
[01:29:40.504]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[01:29:40.504]                 open = "w")
[01:29:40.504]         }
[01:29:40.504]         else {
[01:29:40.504]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[01:29:40.504]                 windows = "NUL", "/dev/null"), open = "w")
[01:29:40.504]         }
[01:29:40.504]         base::sink(...future.stdout, type = "output", split = FALSE)
[01:29:40.504]         base::on.exit(if (!base::is.null(...future.stdout)) {
[01:29:40.504]             base::sink(type = "output", split = FALSE)
[01:29:40.504]             base::close(...future.stdout)
[01:29:40.504]         }, add = TRUE)
[01:29:40.504]     }
[01:29:40.504]     ...future.frame <- base::sys.nframe()
[01:29:40.504]     ...future.conditions <- base::list()
[01:29:40.504]     ...future.rng <- base::globalenv()$.Random.seed
[01:29:40.504]     if (FALSE) {
[01:29:40.504]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[01:29:40.504]             "...future.value", "...future.globalenv.names", ".Random.seed")
[01:29:40.504]     }
[01:29:40.504]     ...future.result <- base::tryCatch({
[01:29:40.504]         base::withCallingHandlers({
[01:29:40.504]             ...future.value <- base::withVisible(base::local({
[01:29:40.504]                 a <- 1
[01:29:40.504]                 a
[01:29:40.504]             }))
[01:29:40.504]             future::FutureResult(value = ...future.value$value, 
[01:29:40.504]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[01:29:40.504]                   ...future.rng), globalenv = if (FALSE) 
[01:29:40.504]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[01:29:40.504]                     ...future.globalenv.names))
[01:29:40.504]                 else NULL, started = ...future.startTime, version = "1.8")
[01:29:40.504]         }, condition = base::local({
[01:29:40.504]             c <- base::c
[01:29:40.504]             inherits <- base::inherits
[01:29:40.504]             invokeRestart <- base::invokeRestart
[01:29:40.504]             length <- base::length
[01:29:40.504]             list <- base::list
[01:29:40.504]             seq.int <- base::seq.int
[01:29:40.504]             signalCondition <- base::signalCondition
[01:29:40.504]             sys.calls <- base::sys.calls
[01:29:40.504]             `[[` <- base::`[[`
[01:29:40.504]             `+` <- base::`+`
[01:29:40.504]             `<<-` <- base::`<<-`
[01:29:40.504]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[01:29:40.504]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[01:29:40.504]                   3L)]
[01:29:40.504]             }
[01:29:40.504]             function(cond) {
[01:29:40.504]                 is_error <- inherits(cond, "error")
[01:29:40.504]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[01:29:40.504]                   NULL)
[01:29:40.504]                 if (is_error) {
[01:29:40.504]                   sessionInformation <- function() {
[01:29:40.504]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[01:29:40.504]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[01:29:40.504]                       search = base::search(), system = base::Sys.info())
[01:29:40.504]                   }
[01:29:40.504]                   ...future.conditions[[length(...future.conditions) + 
[01:29:40.504]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[01:29:40.504]                     cond$call), session = sessionInformation(), 
[01:29:40.504]                     timestamp = base::Sys.time(), signaled = 0L)
[01:29:40.504]                   signalCondition(cond)
[01:29:40.504]                 }
[01:29:40.504]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[01:29:40.504]                 "immediateCondition"))) {
[01:29:40.504]                   signal <- TRUE && inherits(cond, "immediateCondition")
[01:29:40.504]                   ...future.conditions[[length(...future.conditions) + 
[01:29:40.504]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[01:29:40.504]                   if (TRUE && !signal) {
[01:29:40.504]                     muffleCondition <- function (cond, pattern = "^muffle") 
[01:29:40.504]                     {
[01:29:40.504]                       inherits <- base::inherits
[01:29:40.504]                       invokeRestart <- base::invokeRestart
[01:29:40.504]                       is.null <- base::is.null
[01:29:40.504]                       muffled <- FALSE
[01:29:40.504]                       if (inherits(cond, "message")) {
[01:29:40.504]                         muffled <- grepl(pattern, "muffleMessage")
[01:29:40.504]                         if (muffled) 
[01:29:40.504]                           invokeRestart("muffleMessage")
[01:29:40.504]                       }
[01:29:40.504]                       else if (inherits(cond, "warning")) {
[01:29:40.504]                         muffled <- grepl(pattern, "muffleWarning")
[01:29:40.504]                         if (muffled) 
[01:29:40.504]                           invokeRestart("muffleWarning")
[01:29:40.504]                       }
[01:29:40.504]                       else if (inherits(cond, "condition")) {
[01:29:40.504]                         if (!is.null(pattern)) {
[01:29:40.504]                           computeRestarts <- base::computeRestarts
[01:29:40.504]                           grepl <- base::grepl
[01:29:40.504]                           restarts <- computeRestarts(cond)
[01:29:40.504]                           for (restart in restarts) {
[01:29:40.504]                             name <- restart$name
[01:29:40.504]                             if (is.null(name)) 
[01:29:40.504]                               next
[01:29:40.504]                             if (!grepl(pattern, name)) 
[01:29:40.504]                               next
[01:29:40.504]                             invokeRestart(restart)
[01:29:40.504]                             muffled <- TRUE
[01:29:40.504]                             break
[01:29:40.504]                           }
[01:29:40.504]                         }
[01:29:40.504]                       }
[01:29:40.504]                       invisible(muffled)
[01:29:40.504]                     }
[01:29:40.504]                     muffleCondition(cond, pattern = "^muffle")
[01:29:40.504]                   }
[01:29:40.504]                 }
[01:29:40.504]                 else {
[01:29:40.504]                   if (TRUE) {
[01:29:40.504]                     muffleCondition <- function (cond, pattern = "^muffle") 
[01:29:40.504]                     {
[01:29:40.504]                       inherits <- base::inherits
[01:29:40.504]                       invokeRestart <- base::invokeRestart
[01:29:40.504]                       is.null <- base::is.null
[01:29:40.504]                       muffled <- FALSE
[01:29:40.504]                       if (inherits(cond, "message")) {
[01:29:40.504]                         muffled <- grepl(pattern, "muffleMessage")
[01:29:40.504]                         if (muffled) 
[01:29:40.504]                           invokeRestart("muffleMessage")
[01:29:40.504]                       }
[01:29:40.504]                       else if (inherits(cond, "warning")) {
[01:29:40.504]                         muffled <- grepl(pattern, "muffleWarning")
[01:29:40.504]                         if (muffled) 
[01:29:40.504]                           invokeRestart("muffleWarning")
[01:29:40.504]                       }
[01:29:40.504]                       else if (inherits(cond, "condition")) {
[01:29:40.504]                         if (!is.null(pattern)) {
[01:29:40.504]                           computeRestarts <- base::computeRestarts
[01:29:40.504]                           grepl <- base::grepl
[01:29:40.504]                           restarts <- computeRestarts(cond)
[01:29:40.504]                           for (restart in restarts) {
[01:29:40.504]                             name <- restart$name
[01:29:40.504]                             if (is.null(name)) 
[01:29:40.504]                               next
[01:29:40.504]                             if (!grepl(pattern, name)) 
[01:29:40.504]                               next
[01:29:40.504]                             invokeRestart(restart)
[01:29:40.504]                             muffled <- TRUE
[01:29:40.504]                             break
[01:29:40.504]                           }
[01:29:40.504]                         }
[01:29:40.504]                       }
[01:29:40.504]                       invisible(muffled)
[01:29:40.504]                     }
[01:29:40.504]                     muffleCondition(cond, pattern = "^muffle")
[01:29:40.504]                   }
[01:29:40.504]                 }
[01:29:40.504]             }
[01:29:40.504]         }))
[01:29:40.504]     }, error = function(ex) {
[01:29:40.504]         base::structure(base::list(value = NULL, visible = NULL, 
[01:29:40.504]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[01:29:40.504]                 ...future.rng), started = ...future.startTime, 
[01:29:40.504]             finished = Sys.time(), session_uuid = NA_character_, 
[01:29:40.504]             version = "1.8"), class = "FutureResult")
[01:29:40.504]     }, finally = {
[01:29:40.504]         if (!identical(...future.workdir, getwd())) 
[01:29:40.504]             setwd(...future.workdir)
[01:29:40.504]         {
[01:29:40.504]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[01:29:40.504]                 ...future.oldOptions$nwarnings <- NULL
[01:29:40.504]             }
[01:29:40.504]             base::options(...future.oldOptions)
[01:29:40.504]             if (.Platform$OS.type == "windows") {
[01:29:40.504]                 old_names <- names(...future.oldEnvVars)
[01:29:40.504]                 envs <- base::Sys.getenv()
[01:29:40.504]                 names <- names(envs)
[01:29:40.504]                 common <- intersect(names, old_names)
[01:29:40.504]                 added <- setdiff(names, old_names)
[01:29:40.504]                 removed <- setdiff(old_names, names)
[01:29:40.504]                 changed <- common[...future.oldEnvVars[common] != 
[01:29:40.504]                   envs[common]]
[01:29:40.504]                 NAMES <- toupper(changed)
[01:29:40.504]                 args <- list()
[01:29:40.504]                 for (kk in seq_along(NAMES)) {
[01:29:40.504]                   name <- changed[[kk]]
[01:29:40.504]                   NAME <- NAMES[[kk]]
[01:29:40.504]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.504]                     next
[01:29:40.504]                   args[[name]] <- ...future.oldEnvVars[[name]]
[01:29:40.504]                 }
[01:29:40.504]                 NAMES <- toupper(added)
[01:29:40.504]                 for (kk in seq_along(NAMES)) {
[01:29:40.504]                   name <- added[[kk]]
[01:29:40.504]                   NAME <- NAMES[[kk]]
[01:29:40.504]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.504]                     next
[01:29:40.504]                   args[[name]] <- ""
[01:29:40.504]                 }
[01:29:40.504]                 NAMES <- toupper(removed)
[01:29:40.504]                 for (kk in seq_along(NAMES)) {
[01:29:40.504]                   name <- removed[[kk]]
[01:29:40.504]                   NAME <- NAMES[[kk]]
[01:29:40.504]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.504]                     next
[01:29:40.504]                   args[[name]] <- ...future.oldEnvVars[[name]]
[01:29:40.504]                 }
[01:29:40.504]                 if (length(args) > 0) 
[01:29:40.504]                   base::do.call(base::Sys.setenv, args = args)
[01:29:40.504]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[01:29:40.504]             }
[01:29:40.504]             else {
[01:29:40.504]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[01:29:40.504]             }
[01:29:40.504]             {
[01:29:40.504]                 if (base::length(...future.futureOptionsAdded) > 
[01:29:40.504]                   0L) {
[01:29:40.504]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[01:29:40.504]                   base::names(opts) <- ...future.futureOptionsAdded
[01:29:40.504]                   base::options(opts)
[01:29:40.504]                 }
[01:29:40.504]                 {
[01:29:40.504]                   {
[01:29:40.504]                     NULL
[01:29:40.504]                     RNGkind("Mersenne-Twister")
[01:29:40.504]                     base::rm(list = ".Random.seed", envir = base::globalenv(), 
[01:29:40.504]                       inherits = FALSE)
[01:29:40.504]                   }
[01:29:40.504]                   options(future.plan = NULL)
[01:29:40.504]                   if (is.na(NA_character_)) 
[01:29:40.504]                     Sys.unsetenv("R_FUTURE_PLAN")
[01:29:40.504]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[01:29:40.504]                   future::plan(list(function (..., envir = parent.frame()) 
[01:29:40.504]                   {
[01:29:40.504]                     future <- SequentialFuture(..., envir = envir)
[01:29:40.504]                     if (!future$lazy) 
[01:29:40.504]                       future <- run(future)
[01:29:40.504]                     invisible(future)
[01:29:40.504]                   }), .cleanup = FALSE, .init = FALSE)
[01:29:40.504]                 }
[01:29:40.504]             }
[01:29:40.504]         }
[01:29:40.504]     })
[01:29:40.504]     if (TRUE) {
[01:29:40.504]         base::sink(type = "output", split = FALSE)
[01:29:40.504]         if (TRUE) {
[01:29:40.504]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[01:29:40.504]         }
[01:29:40.504]         else {
[01:29:40.504]             ...future.result["stdout"] <- base::list(NULL)
[01:29:40.504]         }
[01:29:40.504]         base::close(...future.stdout)
[01:29:40.504]         ...future.stdout <- NULL
[01:29:40.504]     }
[01:29:40.504]     ...future.result$conditions <- ...future.conditions
[01:29:40.504]     ...future.result$finished <- base::Sys.time()
[01:29:40.504]     ...future.result
[01:29:40.504] }
[01:29:40.508] plan(): Setting new future strategy stack:
[01:29:40.508] List of future strategies:
[01:29:40.508] 1. sequential:
[01:29:40.508]    - args: function (..., envir = parent.frame(), workers = "<NULL>")
[01:29:40.508]    - tweaked: FALSE
[01:29:40.508]    - call: NULL
[01:29:40.509] plan(): nbrOfWorkers() = 1
[01:29:40.511] plan(): Setting new future strategy stack:
[01:29:40.511] List of future strategies:
[01:29:40.511] 1. sequential:
[01:29:40.511]    - args: function (..., envir = parent.frame(), workers = "<NULL>")
[01:29:40.511]    - tweaked: FALSE
[01:29:40.511]    - call: plan(sequential)
[01:29:40.512] plan(): nbrOfWorkers() = 1
[01:29:40.512] SequentialFuture started (and completed)
[01:29:40.512] - Launch lazy future ... done
[01:29:40.512] run() for 'SequentialFuture' ... done
> print(x)
[1] 1
> stopifnot(a == 0, x == 1)
> 
> 
> plan(sequential, abc = FALSE)
Warning: Detected 1 unknown future arguments: 'abc'
[01:29:40.513] plan(): Setting new future strategy stack:
[01:29:40.513] List of future strategies:
[01:29:40.513] 1. sequential:
[01:29:40.513]    - args: function (..., abc = FALSE, envir = parent.frame(), workers = "<NULL>")
[01:29:40.513]    - tweaked: TRUE
[01:29:40.513]    - call: plan(sequential, abc = FALSE)
[01:29:40.514] plan(): nbrOfWorkers() = 1
> 
> a <- 0
> x %<-% { a <- 1; a }
[01:29:40.515] getGlobalsAndPackages() ...
[01:29:40.515] Searching for globals...
[01:29:40.516] - globals found: [2] '{', '<-'
[01:29:40.516] Searching for globals ... DONE
[01:29:40.516] Resolving globals: FALSE
[01:29:40.517] 
[01:29:40.517] 
[01:29:40.517] getGlobalsAndPackages() ... DONE
[01:29:40.517] run() for 'Future' ...
[01:29:40.518] - state: 'created'
[01:29:40.518] - Future backend: 'FutureStrategy', 'tweaked', 'sequential', 'uniprocess', 'future', 'function'
[01:29:40.518] - Future class: 'SequentialFuture', 'UniprocessFuture', 'Future', 'environment'
[01:29:40.518] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ...
[01:29:40.519]   - Field: 'label'
[01:29:40.519]   - Field: 'local'
[01:29:40.519]   - Field: 'owner'
[01:29:40.519]   - Field: 'envir'
[01:29:40.519]   - Field: 'packages'
[01:29:40.520]   - Field: 'gc'
[01:29:40.520]   - Field: 'conditions'
[01:29:40.520]   - Field: 'expr'
[01:29:40.520]   - Field: 'uuid'
[01:29:40.520]   - Field: 'seed'
[01:29:40.520]   - Field: 'version'
[01:29:40.521]   - Field: 'result'
[01:29:40.521]   - Field: 'asynchronous'
[01:29:40.521]   - Field: 'calls'
[01:29:40.521]   - Field: 'abc'
[01:29:40.521]   - Field: 'globals'
[01:29:40.522]   - Field: 'stdout'
[01:29:40.522]   - Field: 'earlySignal'
[01:29:40.522]   - Field: 'lazy'
[01:29:40.522]   - Field: 'state'
[01:29:40.522] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ... done
[01:29:40.522] - Launch lazy future ...
[01:29:40.523] Packages needed by the future expression (n = 0): <none>
[01:29:40.523] Packages needed by future strategies (n = 0): <none>
[01:29:40.523] {
[01:29:40.523]     {
[01:29:40.523]         {
[01:29:40.523]             ...future.startTime <- base::Sys.time()
[01:29:40.523]             {
[01:29:40.523]                 {
[01:29:40.523]                   {
[01:29:40.523]                     base::local({
[01:29:40.523]                       has_future <- base::requireNamespace("future", 
[01:29:40.523]                         quietly = TRUE)
[01:29:40.523]                       if (has_future) {
[01:29:40.523]                         ns <- base::getNamespace("future")
[01:29:40.523]                         version <- ns[[".package"]][["version"]]
[01:29:40.523]                         if (is.null(version)) 
[01:29:40.523]                           version <- utils::packageVersion("future")
[01:29:40.523]                       }
[01:29:40.523]                       else {
[01:29:40.523]                         version <- NULL
[01:29:40.523]                       }
[01:29:40.523]                       if (!has_future || version < "1.8.0") {
[01:29:40.523]                         info <- base::c(r_version = base::gsub("R version ", 
[01:29:40.523]                           "", base::R.version$version.string), 
[01:29:40.523]                           platform = base::sprintf("%s (%s-bit)", 
[01:29:40.523]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[01:29:40.523]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[01:29:40.523]                             "release", "version")], collapse = " "), 
[01:29:40.523]                           hostname = base::Sys.info()[["nodename"]])
[01:29:40.523]                         info <- base::sprintf("%s: %s", base::names(info), 
[01:29:40.523]                           info)
[01:29:40.523]                         info <- base::paste(info, collapse = "; ")
[01:29:40.523]                         if (!has_future) {
[01:29:40.523]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[01:29:40.523]                             info)
[01:29:40.523]                         }
[01:29:40.523]                         else {
[01:29:40.523]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[01:29:40.523]                             info, version)
[01:29:40.523]                         }
[01:29:40.523]                         base::stop(msg)
[01:29:40.523]                       }
[01:29:40.523]                     })
[01:29:40.523]                   }
[01:29:40.523]                   options(future.plan = NULL)
[01:29:40.523]                   Sys.unsetenv("R_FUTURE_PLAN")
[01:29:40.523]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[01:29:40.523]                 }
[01:29:40.523]                 ...future.workdir <- getwd()
[01:29:40.523]             }
[01:29:40.523]             ...future.oldOptions <- base::as.list(base::.Options)
[01:29:40.523]             ...future.oldEnvVars <- base::Sys.getenv()
[01:29:40.523]         }
[01:29:40.523]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[01:29:40.523]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[01:29:40.523]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[01:29:40.523]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[01:29:40.523]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[01:29:40.523]             future.stdout.windows.reencode = NULL, width = 80L)
[01:29:40.523]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[01:29:40.523]             base::names(...future.oldOptions))
[01:29:40.523]     }
[01:29:40.523]     if (FALSE) {
[01:29:40.523]     }
[01:29:40.523]     else {
[01:29:40.523]         if (TRUE) {
[01:29:40.523]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[01:29:40.523]                 open = "w")
[01:29:40.523]         }
[01:29:40.523]         else {
[01:29:40.523]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[01:29:40.523]                 windows = "NUL", "/dev/null"), open = "w")
[01:29:40.523]         }
[01:29:40.523]         base::sink(...future.stdout, type = "output", split = FALSE)
[01:29:40.523]         base::on.exit(if (!base::is.null(...future.stdout)) {
[01:29:40.523]             base::sink(type = "output", split = FALSE)
[01:29:40.523]             base::close(...future.stdout)
[01:29:40.523]         }, add = TRUE)
[01:29:40.523]     }
[01:29:40.523]     ...future.frame <- base::sys.nframe()
[01:29:40.523]     ...future.conditions <- base::list()
[01:29:40.523]     ...future.rng <- base::globalenv()$.Random.seed
[01:29:40.523]     if (FALSE) {
[01:29:40.523]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[01:29:40.523]             "...future.value", "...future.globalenv.names", ".Random.seed")
[01:29:40.523]     }
[01:29:40.523]     ...future.result <- base::tryCatch({
[01:29:40.523]         base::withCallingHandlers({
[01:29:40.523]             ...future.value <- base::withVisible(base::local({
[01:29:40.523]                 a <- 1
[01:29:40.523]                 a
[01:29:40.523]             }))
[01:29:40.523]             future::FutureResult(value = ...future.value$value, 
[01:29:40.523]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[01:29:40.523]                   ...future.rng), globalenv = if (FALSE) 
[01:29:40.523]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[01:29:40.523]                     ...future.globalenv.names))
[01:29:40.523]                 else NULL, started = ...future.startTime, version = "1.8")
[01:29:40.523]         }, condition = base::local({
[01:29:40.523]             c <- base::c
[01:29:40.523]             inherits <- base::inherits
[01:29:40.523]             invokeRestart <- base::invokeRestart
[01:29:40.523]             length <- base::length
[01:29:40.523]             list <- base::list
[01:29:40.523]             seq.int <- base::seq.int
[01:29:40.523]             signalCondition <- base::signalCondition
[01:29:40.523]             sys.calls <- base::sys.calls
[01:29:40.523]             `[[` <- base::`[[`
[01:29:40.523]             `+` <- base::`+`
[01:29:40.523]             `<<-` <- base::`<<-`
[01:29:40.523]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[01:29:40.523]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[01:29:40.523]                   3L)]
[01:29:40.523]             }
[01:29:40.523]             function(cond) {
[01:29:40.523]                 is_error <- inherits(cond, "error")
[01:29:40.523]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[01:29:40.523]                   NULL)
[01:29:40.523]                 if (is_error) {
[01:29:40.523]                   sessionInformation <- function() {
[01:29:40.523]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[01:29:40.523]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[01:29:40.523]                       search = base::search(), system = base::Sys.info())
[01:29:40.523]                   }
[01:29:40.523]                   ...future.conditions[[length(...future.conditions) + 
[01:29:40.523]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[01:29:40.523]                     cond$call), session = sessionInformation(), 
[01:29:40.523]                     timestamp = base::Sys.time(), signaled = 0L)
[01:29:40.523]                   signalCondition(cond)
[01:29:40.523]                 }
[01:29:40.523]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[01:29:40.523]                 "immediateCondition"))) {
[01:29:40.523]                   signal <- TRUE && inherits(cond, "immediateCondition")
[01:29:40.523]                   ...future.conditions[[length(...future.conditions) + 
[01:29:40.523]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[01:29:40.523]                   if (TRUE && !signal) {
[01:29:40.523]                     muffleCondition <- function (cond, pattern = "^muffle") 
[01:29:40.523]                     {
[01:29:40.523]                       inherits <- base::inherits
[01:29:40.523]                       invokeRestart <- base::invokeRestart
[01:29:40.523]                       is.null <- base::is.null
[01:29:40.523]                       muffled <- FALSE
[01:29:40.523]                       if (inherits(cond, "message")) {
[01:29:40.523]                         muffled <- grepl(pattern, "muffleMessage")
[01:29:40.523]                         if (muffled) 
[01:29:40.523]                           invokeRestart("muffleMessage")
[01:29:40.523]                       }
[01:29:40.523]                       else if (inherits(cond, "warning")) {
[01:29:40.523]                         muffled <- grepl(pattern, "muffleWarning")
[01:29:40.523]                         if (muffled) 
[01:29:40.523]                           invokeRestart("muffleWarning")
[01:29:40.523]                       }
[01:29:40.523]                       else if (inherits(cond, "condition")) {
[01:29:40.523]                         if (!is.null(pattern)) {
[01:29:40.523]                           computeRestarts <- base::computeRestarts
[01:29:40.523]                           grepl <- base::grepl
[01:29:40.523]                           restarts <- computeRestarts(cond)
[01:29:40.523]                           for (restart in restarts) {
[01:29:40.523]                             name <- restart$name
[01:29:40.523]                             if (is.null(name)) 
[01:29:40.523]                               next
[01:29:40.523]                             if (!grepl(pattern, name)) 
[01:29:40.523]                               next
[01:29:40.523]                             invokeRestart(restart)
[01:29:40.523]                             muffled <- TRUE
[01:29:40.523]                             break
[01:29:40.523]                           }
[01:29:40.523]                         }
[01:29:40.523]                       }
[01:29:40.523]                       invisible(muffled)
[01:29:40.523]                     }
[01:29:40.523]                     muffleCondition(cond, pattern = "^muffle")
[01:29:40.523]                   }
[01:29:40.523]                 }
[01:29:40.523]                 else {
[01:29:40.523]                   if (TRUE) {
[01:29:40.523]                     muffleCondition <- function (cond, pattern = "^muffle") 
[01:29:40.523]                     {
[01:29:40.523]                       inherits <- base::inherits
[01:29:40.523]                       invokeRestart <- base::invokeRestart
[01:29:40.523]                       is.null <- base::is.null
[01:29:40.523]                       muffled <- FALSE
[01:29:40.523]                       if (inherits(cond, "message")) {
[01:29:40.523]                         muffled <- grepl(pattern, "muffleMessage")
[01:29:40.523]                         if (muffled) 
[01:29:40.523]                           invokeRestart("muffleMessage")
[01:29:40.523]                       }
[01:29:40.523]                       else if (inherits(cond, "warning")) {
[01:29:40.523]                         muffled <- grepl(pattern, "muffleWarning")
[01:29:40.523]                         if (muffled) 
[01:29:40.523]                           invokeRestart("muffleWarning")
[01:29:40.523]                       }
[01:29:40.523]                       else if (inherits(cond, "condition")) {
[01:29:40.523]                         if (!is.null(pattern)) {
[01:29:40.523]                           computeRestarts <- base::computeRestarts
[01:29:40.523]                           grepl <- base::grepl
[01:29:40.523]                           restarts <- computeRestarts(cond)
[01:29:40.523]                           for (restart in restarts) {
[01:29:40.523]                             name <- restart$name
[01:29:40.523]                             if (is.null(name)) 
[01:29:40.523]                               next
[01:29:40.523]                             if (!grepl(pattern, name)) 
[01:29:40.523]                               next
[01:29:40.523]                             invokeRestart(restart)
[01:29:40.523]                             muffled <- TRUE
[01:29:40.523]                             break
[01:29:40.523]                           }
[01:29:40.523]                         }
[01:29:40.523]                       }
[01:29:40.523]                       invisible(muffled)
[01:29:40.523]                     }
[01:29:40.523]                     muffleCondition(cond, pattern = "^muffle")
[01:29:40.523]                   }
[01:29:40.523]                 }
[01:29:40.523]             }
[01:29:40.523]         }))
[01:29:40.523]     }, error = function(ex) {
[01:29:40.523]         base::structure(base::list(value = NULL, visible = NULL, 
[01:29:40.523]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[01:29:40.523]                 ...future.rng), started = ...future.startTime, 
[01:29:40.523]             finished = Sys.time(), session_uuid = NA_character_, 
[01:29:40.523]             version = "1.8"), class = "FutureResult")
[01:29:40.523]     }, finally = {
[01:29:40.523]         if (!identical(...future.workdir, getwd())) 
[01:29:40.523]             setwd(...future.workdir)
[01:29:40.523]         {
[01:29:40.523]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[01:29:40.523]                 ...future.oldOptions$nwarnings <- NULL
[01:29:40.523]             }
[01:29:40.523]             base::options(...future.oldOptions)
[01:29:40.523]             if (.Platform$OS.type == "windows") {
[01:29:40.523]                 old_names <- names(...future.oldEnvVars)
[01:29:40.523]                 envs <- base::Sys.getenv()
[01:29:40.523]                 names <- names(envs)
[01:29:40.523]                 common <- intersect(names, old_names)
[01:29:40.523]                 added <- setdiff(names, old_names)
[01:29:40.523]                 removed <- setdiff(old_names, names)
[01:29:40.523]                 changed <- common[...future.oldEnvVars[common] != 
[01:29:40.523]                   envs[common]]
[01:29:40.523]                 NAMES <- toupper(changed)
[01:29:40.523]                 args <- list()
[01:29:40.523]                 for (kk in seq_along(NAMES)) {
[01:29:40.523]                   name <- changed[[kk]]
[01:29:40.523]                   NAME <- NAMES[[kk]]
[01:29:40.523]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.523]                     next
[01:29:40.523]                   args[[name]] <- ...future.oldEnvVars[[name]]
[01:29:40.523]                 }
[01:29:40.523]                 NAMES <- toupper(added)
[01:29:40.523]                 for (kk in seq_along(NAMES)) {
[01:29:40.523]                   name <- added[[kk]]
[01:29:40.523]                   NAME <- NAMES[[kk]]
[01:29:40.523]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.523]                     next
[01:29:40.523]                   args[[name]] <- ""
[01:29:40.523]                 }
[01:29:40.523]                 NAMES <- toupper(removed)
[01:29:40.523]                 for (kk in seq_along(NAMES)) {
[01:29:40.523]                   name <- removed[[kk]]
[01:29:40.523]                   NAME <- NAMES[[kk]]
[01:29:40.523]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.523]                     next
[01:29:40.523]                   args[[name]] <- ...future.oldEnvVars[[name]]
[01:29:40.523]                 }
[01:29:40.523]                 if (length(args) > 0) 
[01:29:40.523]                   base::do.call(base::Sys.setenv, args = args)
[01:29:40.523]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[01:29:40.523]             }
[01:29:40.523]             else {
[01:29:40.523]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[01:29:40.523]             }
[01:29:40.523]             {
[01:29:40.523]                 if (base::length(...future.futureOptionsAdded) > 
[01:29:40.523]                   0L) {
[01:29:40.523]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[01:29:40.523]                   base::names(opts) <- ...future.futureOptionsAdded
[01:29:40.523]                   base::options(opts)
[01:29:40.523]                 }
[01:29:40.523]                 {
[01:29:40.523]                   {
[01:29:40.523]                     NULL
[01:29:40.523]                     RNGkind("Mersenne-Twister")
[01:29:40.523]                     base::rm(list = ".Random.seed", envir = base::globalenv(), 
[01:29:40.523]                       inherits = FALSE)
[01:29:40.523]                   }
[01:29:40.523]                   options(future.plan = NULL)
[01:29:40.523]                   if (is.na(NA_character_)) 
[01:29:40.523]                     Sys.unsetenv("R_FUTURE_PLAN")
[01:29:40.523]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[01:29:40.523]                   future::plan(list(function (..., abc = FALSE, 
[01:29:40.523]                     envir = parent.frame()) 
[01:29:40.523]                   strategy(..., abc = abc, envir = envir)), .cleanup = FALSE, 
[01:29:40.523]                     .init = FALSE)
[01:29:40.523]                 }
[01:29:40.523]             }
[01:29:40.523]         }
[01:29:40.523]     })
[01:29:40.523]     if (TRUE) {
[01:29:40.523]         base::sink(type = "output", split = FALSE)
[01:29:40.523]         if (TRUE) {
[01:29:40.523]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[01:29:40.523]         }
[01:29:40.523]         else {
[01:29:40.523]             ...future.result["stdout"] <- base::list(NULL)
[01:29:40.523]         }
[01:29:40.523]         base::close(...future.stdout)
[01:29:40.523]         ...future.stdout <- NULL
[01:29:40.523]     }
[01:29:40.523]     ...future.result$conditions <- ...future.conditions
[01:29:40.523]     ...future.result$finished <- base::Sys.time()
[01:29:40.523]     ...future.result
[01:29:40.523] }
[01:29:40.528] plan(): Setting new future strategy stack:
[01:29:40.528] List of future strategies:
[01:29:40.528] 1. sequential:
[01:29:40.528]    - args: function (..., envir = parent.frame(), workers = "<NULL>")
[01:29:40.528]    - tweaked: FALSE
[01:29:40.528]    - call: NULL
[01:29:40.528] plan(): nbrOfWorkers() = 1
[01:29:40.530] plan(): Setting new future strategy stack:
[01:29:40.530] List of future strategies:
[01:29:40.530] 1. sequential:
[01:29:40.530]    - args: function (..., abc = FALSE, envir = parent.frame(), workers = "<NULL>")
[01:29:40.530]    - tweaked: TRUE
[01:29:40.530]    - call: plan(sequential, abc = FALSE)
[01:29:40.530] plan(): nbrOfWorkers() = 1
[01:29:40.531] SequentialFuture started (and completed)
[01:29:40.531] - Launch lazy future ... done
[01:29:40.531] run() for 'SequentialFuture' ... done
> print(x)
[1] 1
> stopifnot(a == 0, x == 1)
> 
> x %<-% { a <- 2; a } %tweak% list(abc = TRUE)
[01:29:40.532] plan(): Setting new future strategy stack:
[01:29:40.532] List of future strategies:
[01:29:40.532] 1. sequential:
[01:29:40.532]    - args: function (..., abc = TRUE, envir = parent.frame(), workers = "<NULL>")
[01:29:40.532]    - tweaked: TRUE
[01:29:40.532]    - call: plan(sequential, abc = FALSE)
[01:29:40.533] plan(): nbrOfWorkers() = 1
[01:29:40.533] getGlobalsAndPackages() ...
[01:29:40.533] Searching for globals...
[01:29:40.535] - globals found: [2] '{', '<-'
[01:29:40.535] Searching for globals ... DONE
[01:29:40.535] Resolving globals: FALSE
[01:29:40.535] 
[01:29:40.536] 
[01:29:40.536] getGlobalsAndPackages() ... DONE
[01:29:40.536] run() for 'Future' ...
[01:29:40.536] - state: 'created'
[01:29:40.536] - Future backend: 'FutureStrategy', 'tweaked', 'tweaked', 'sequential', 'uniprocess', 'future', 'function'
[01:29:40.537] - Future class: 'SequentialFuture', 'UniprocessFuture', 'Future', 'environment'
[01:29:40.537] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ...
[01:29:40.537]   - Field: 'label'
[01:29:40.537]   - Field: 'local'
[01:29:40.538]   - Field: 'owner'
[01:29:40.538]   - Field: 'envir'
[01:29:40.538]   - Field: 'packages'
[01:29:40.538]   - Field: 'gc'
[01:29:40.538]   - Field: 'conditions'
[01:29:40.539]   - Field: 'expr'
[01:29:40.539]   - Field: 'uuid'
[01:29:40.539]   - Field: 'seed'
[01:29:40.539]   - Field: 'version'
[01:29:40.539]   - Field: 'result'
[01:29:40.539]   - Field: 'asynchronous'
[01:29:40.540]   - Field: 'calls'
[01:29:40.540]   - Field: 'abc'
[01:29:40.540]   - Field: 'globals'
[01:29:40.540]   - Field: 'stdout'
[01:29:40.540]   - Field: 'earlySignal'
[01:29:40.541]   - Field: 'lazy'
[01:29:40.541]   - Field: 'state'
[01:29:40.541] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ... done
[01:29:40.541] - Launch lazy future ...
[01:29:40.541] Packages needed by the future expression (n = 0): <none>
[01:29:40.541] Packages needed by future strategies (n = 0): <none>
[01:29:40.542] {
[01:29:40.542]     {
[01:29:40.542]         {
[01:29:40.542]             ...future.startTime <- base::Sys.time()
[01:29:40.542]             {
[01:29:40.542]                 {
[01:29:40.542]                   {
[01:29:40.542]                     base::local({
[01:29:40.542]                       has_future <- base::requireNamespace("future", 
[01:29:40.542]                         quietly = TRUE)
[01:29:40.542]                       if (has_future) {
[01:29:40.542]                         ns <- base::getNamespace("future")
[01:29:40.542]                         version <- ns[[".package"]][["version"]]
[01:29:40.542]                         if (is.null(version)) 
[01:29:40.542]                           version <- utils::packageVersion("future")
[01:29:40.542]                       }
[01:29:40.542]                       else {
[01:29:40.542]                         version <- NULL
[01:29:40.542]                       }
[01:29:40.542]                       if (!has_future || version < "1.8.0") {
[01:29:40.542]                         info <- base::c(r_version = base::gsub("R version ", 
[01:29:40.542]                           "", base::R.version$version.string), 
[01:29:40.542]                           platform = base::sprintf("%s (%s-bit)", 
[01:29:40.542]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[01:29:40.542]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[01:29:40.542]                             "release", "version")], collapse = " "), 
[01:29:40.542]                           hostname = base::Sys.info()[["nodename"]])
[01:29:40.542]                         info <- base::sprintf("%s: %s", base::names(info), 
[01:29:40.542]                           info)
[01:29:40.542]                         info <- base::paste(info, collapse = "; ")
[01:29:40.542]                         if (!has_future) {
[01:29:40.542]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[01:29:40.542]                             info)
[01:29:40.542]                         }
[01:29:40.542]                         else {
[01:29:40.542]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[01:29:40.542]                             info, version)
[01:29:40.542]                         }
[01:29:40.542]                         base::stop(msg)
[01:29:40.542]                       }
[01:29:40.542]                     })
[01:29:40.542]                   }
[01:29:40.542]                   options(future.plan = NULL)
[01:29:40.542]                   Sys.unsetenv("R_FUTURE_PLAN")
[01:29:40.542]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[01:29:40.542]                 }
[01:29:40.542]                 ...future.workdir <- getwd()
[01:29:40.542]             }
[01:29:40.542]             ...future.oldOptions <- base::as.list(base::.Options)
[01:29:40.542]             ...future.oldEnvVars <- base::Sys.getenv()
[01:29:40.542]         }
[01:29:40.542]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[01:29:40.542]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[01:29:40.542]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[01:29:40.542]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[01:29:40.542]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[01:29:40.542]             future.stdout.windows.reencode = NULL, width = 80L)
[01:29:40.542]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[01:29:40.542]             base::names(...future.oldOptions))
[01:29:40.542]     }
[01:29:40.542]     if (FALSE) {
[01:29:40.542]     }
[01:29:40.542]     else {
[01:29:40.542]         if (TRUE) {
[01:29:40.542]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[01:29:40.542]                 open = "w")
[01:29:40.542]         }
[01:29:40.542]         else {
[01:29:40.542]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[01:29:40.542]                 windows = "NUL", "/dev/null"), open = "w")
[01:29:40.542]         }
[01:29:40.542]         base::sink(...future.stdout, type = "output", split = FALSE)
[01:29:40.542]         base::on.exit(if (!base::is.null(...future.stdout)) {
[01:29:40.542]             base::sink(type = "output", split = FALSE)
[01:29:40.542]             base::close(...future.stdout)
[01:29:40.542]         }, add = TRUE)
[01:29:40.542]     }
[01:29:40.542]     ...future.frame <- base::sys.nframe()
[01:29:40.542]     ...future.conditions <- base::list()
[01:29:40.542]     ...future.rng <- base::globalenv()$.Random.seed
[01:29:40.542]     if (FALSE) {
[01:29:40.542]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[01:29:40.542]             "...future.value", "...future.globalenv.names", ".Random.seed")
[01:29:40.542]     }
[01:29:40.542]     ...future.result <- base::tryCatch({
[01:29:40.542]         base::withCallingHandlers({
[01:29:40.542]             ...future.value <- base::withVisible(base::local({
[01:29:40.542]                 a <- 2
[01:29:40.542]                 a
[01:29:40.542]             }))
[01:29:40.542]             future::FutureResult(value = ...future.value$value, 
[01:29:40.542]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[01:29:40.542]                   ...future.rng), globalenv = if (FALSE) 
[01:29:40.542]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[01:29:40.542]                     ...future.globalenv.names))
[01:29:40.542]                 else NULL, started = ...future.startTime, version = "1.8")
[01:29:40.542]         }, condition = base::local({
[01:29:40.542]             c <- base::c
[01:29:40.542]             inherits <- base::inherits
[01:29:40.542]             invokeRestart <- base::invokeRestart
[01:29:40.542]             length <- base::length
[01:29:40.542]             list <- base::list
[01:29:40.542]             seq.int <- base::seq.int
[01:29:40.542]             signalCondition <- base::signalCondition
[01:29:40.542]             sys.calls <- base::sys.calls
[01:29:40.542]             `[[` <- base::`[[`
[01:29:40.542]             `+` <- base::`+`
[01:29:40.542]             `<<-` <- base::`<<-`
[01:29:40.542]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[01:29:40.542]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[01:29:40.542]                   3L)]
[01:29:40.542]             }
[01:29:40.542]             function(cond) {
[01:29:40.542]                 is_error <- inherits(cond, "error")
[01:29:40.542]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[01:29:40.542]                   NULL)
[01:29:40.542]                 if (is_error) {
[01:29:40.542]                   sessionInformation <- function() {
[01:29:40.542]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[01:29:40.542]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[01:29:40.542]                       search = base::search(), system = base::Sys.info())
[01:29:40.542]                   }
[01:29:40.542]                   ...future.conditions[[length(...future.conditions) + 
[01:29:40.542]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[01:29:40.542]                     cond$call), session = sessionInformation(), 
[01:29:40.542]                     timestamp = base::Sys.time(), signaled = 0L)
[01:29:40.542]                   signalCondition(cond)
[01:29:40.542]                 }
[01:29:40.542]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[01:29:40.542]                 "immediateCondition"))) {
[01:29:40.542]                   signal <- TRUE && inherits(cond, "immediateCondition")
[01:29:40.542]                   ...future.conditions[[length(...future.conditions) + 
[01:29:40.542]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[01:29:40.542]                   if (TRUE && !signal) {
[01:29:40.542]                     muffleCondition <- function (cond, pattern = "^muffle") 
[01:29:40.542]                     {
[01:29:40.542]                       inherits <- base::inherits
[01:29:40.542]                       invokeRestart <- base::invokeRestart
[01:29:40.542]                       is.null <- base::is.null
[01:29:40.542]                       muffled <- FALSE
[01:29:40.542]                       if (inherits(cond, "message")) {
[01:29:40.542]                         muffled <- grepl(pattern, "muffleMessage")
[01:29:40.542]                         if (muffled) 
[01:29:40.542]                           invokeRestart("muffleMessage")
[01:29:40.542]                       }
[01:29:40.542]                       else if (inherits(cond, "warning")) {
[01:29:40.542]                         muffled <- grepl(pattern, "muffleWarning")
[01:29:40.542]                         if (muffled) 
[01:29:40.542]                           invokeRestart("muffleWarning")
[01:29:40.542]                       }
[01:29:40.542]                       else if (inherits(cond, "condition")) {
[01:29:40.542]                         if (!is.null(pattern)) {
[01:29:40.542]                           computeRestarts <- base::computeRestarts
[01:29:40.542]                           grepl <- base::grepl
[01:29:40.542]                           restarts <- computeRestarts(cond)
[01:29:40.542]                           for (restart in restarts) {
[01:29:40.542]                             name <- restart$name
[01:29:40.542]                             if (is.null(name)) 
[01:29:40.542]                               next
[01:29:40.542]                             if (!grepl(pattern, name)) 
[01:29:40.542]                               next
[01:29:40.542]                             invokeRestart(restart)
[01:29:40.542]                             muffled <- TRUE
[01:29:40.542]                             break
[01:29:40.542]                           }
[01:29:40.542]                         }
[01:29:40.542]                       }
[01:29:40.542]                       invisible(muffled)
[01:29:40.542]                     }
[01:29:40.542]                     muffleCondition(cond, pattern = "^muffle")
[01:29:40.542]                   }
[01:29:40.542]                 }
[01:29:40.542]                 else {
[01:29:40.542]                   if (TRUE) {
[01:29:40.542]                     muffleCondition <- function (cond, pattern = "^muffle") 
[01:29:40.542]                     {
[01:29:40.542]                       inherits <- base::inherits
[01:29:40.542]                       invokeRestart <- base::invokeRestart
[01:29:40.542]                       is.null <- base::is.null
[01:29:40.542]                       muffled <- FALSE
[01:29:40.542]                       if (inherits(cond, "message")) {
[01:29:40.542]                         muffled <- grepl(pattern, "muffleMessage")
[01:29:40.542]                         if (muffled) 
[01:29:40.542]                           invokeRestart("muffleMessage")
[01:29:40.542]                       }
[01:29:40.542]                       else if (inherits(cond, "warning")) {
[01:29:40.542]                         muffled <- grepl(pattern, "muffleWarning")
[01:29:40.542]                         if (muffled) 
[01:29:40.542]                           invokeRestart("muffleWarning")
[01:29:40.542]                       }
[01:29:40.542]                       else if (inherits(cond, "condition")) {
[01:29:40.542]                         if (!is.null(pattern)) {
[01:29:40.542]                           computeRestarts <- base::computeRestarts
[01:29:40.542]                           grepl <- base::grepl
[01:29:40.542]                           restarts <- computeRestarts(cond)
[01:29:40.542]                           for (restart in restarts) {
[01:29:40.542]                             name <- restart$name
[01:29:40.542]                             if (is.null(name)) 
[01:29:40.542]                               next
[01:29:40.542]                             if (!grepl(pattern, name)) 
[01:29:40.542]                               next
[01:29:40.542]                             invokeRestart(restart)
[01:29:40.542]                             muffled <- TRUE
[01:29:40.542]                             break
[01:29:40.542]                           }
[01:29:40.542]                         }
[01:29:40.542]                       }
[01:29:40.542]                       invisible(muffled)
[01:29:40.542]                     }
[01:29:40.542]                     muffleCondition(cond, pattern = "^muffle")
[01:29:40.542]                   }
[01:29:40.542]                 }
[01:29:40.542]             }
[01:29:40.542]         }))
[01:29:40.542]     }, error = function(ex) {
[01:29:40.542]         base::structure(base::list(value = NULL, visible = NULL, 
[01:29:40.542]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[01:29:40.542]                 ...future.rng), started = ...future.startTime, 
[01:29:40.542]             finished = Sys.time(), session_uuid = NA_character_, 
[01:29:40.542]             version = "1.8"), class = "FutureResult")
[01:29:40.542]     }, finally = {
[01:29:40.542]         if (!identical(...future.workdir, getwd())) 
[01:29:40.542]             setwd(...future.workdir)
[01:29:40.542]         {
[01:29:40.542]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[01:29:40.542]                 ...future.oldOptions$nwarnings <- NULL
[01:29:40.542]             }
[01:29:40.542]             base::options(...future.oldOptions)
[01:29:40.542]             if (.Platform$OS.type == "windows") {
[01:29:40.542]                 old_names <- names(...future.oldEnvVars)
[01:29:40.542]                 envs <- base::Sys.getenv()
[01:29:40.542]                 names <- names(envs)
[01:29:40.542]                 common <- intersect(names, old_names)
[01:29:40.542]                 added <- setdiff(names, old_names)
[01:29:40.542]                 removed <- setdiff(old_names, names)
[01:29:40.542]                 changed <- common[...future.oldEnvVars[common] != 
[01:29:40.542]                   envs[common]]
[01:29:40.542]                 NAMES <- toupper(changed)
[01:29:40.542]                 args <- list()
[01:29:40.542]                 for (kk in seq_along(NAMES)) {
[01:29:40.542]                   name <- changed[[kk]]
[01:29:40.542]                   NAME <- NAMES[[kk]]
[01:29:40.542]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.542]                     next
[01:29:40.542]                   args[[name]] <- ...future.oldEnvVars[[name]]
[01:29:40.542]                 }
[01:29:40.542]                 NAMES <- toupper(added)
[01:29:40.542]                 for (kk in seq_along(NAMES)) {
[01:29:40.542]                   name <- added[[kk]]
[01:29:40.542]                   NAME <- NAMES[[kk]]
[01:29:40.542]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.542]                     next
[01:29:40.542]                   args[[name]] <- ""
[01:29:40.542]                 }
[01:29:40.542]                 NAMES <- toupper(removed)
[01:29:40.542]                 for (kk in seq_along(NAMES)) {
[01:29:40.542]                   name <- removed[[kk]]
[01:29:40.542]                   NAME <- NAMES[[kk]]
[01:29:40.542]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.542]                     next
[01:29:40.542]                   args[[name]] <- ...future.oldEnvVars[[name]]
[01:29:40.542]                 }
[01:29:40.542]                 if (length(args) > 0) 
[01:29:40.542]                   base::do.call(base::Sys.setenv, args = args)
[01:29:40.542]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[01:29:40.542]             }
[01:29:40.542]             else {
[01:29:40.542]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[01:29:40.542]             }
[01:29:40.542]             {
[01:29:40.542]                 if (base::length(...future.futureOptionsAdded) > 
[01:29:40.542]                   0L) {
[01:29:40.542]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[01:29:40.542]                   base::names(opts) <- ...future.futureOptionsAdded
[01:29:40.542]                   base::options(opts)
[01:29:40.542]                 }
[01:29:40.542]                 {
[01:29:40.542]                   {
[01:29:40.542]                     NULL
[01:29:40.542]                     RNGkind("Mersenne-Twister")
[01:29:40.542]                     base::rm(list = ".Random.seed", envir = base::globalenv(), 
[01:29:40.542]                       inherits = FALSE)
[01:29:40.542]                   }
[01:29:40.542]                   options(future.plan = NULL)
[01:29:40.542]                   if (is.na(NA_character_)) 
[01:29:40.542]                     Sys.unsetenv("R_FUTURE_PLAN")
[01:29:40.542]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[01:29:40.542]                   future::plan(list(function (..., abc = TRUE, 
[01:29:40.542]                     envir = parent.frame()) 
[01:29:40.542]                   strategy(..., abc = abc, envir = envir)), .cleanup = FALSE, 
[01:29:40.542]                     .init = FALSE)
[01:29:40.542]                 }
[01:29:40.542]             }
[01:29:40.542]         }
[01:29:40.542]     })
[01:29:40.542]     if (TRUE) {
[01:29:40.542]         base::sink(type = "output", split = FALSE)
[01:29:40.542]         if (TRUE) {
[01:29:40.542]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[01:29:40.542]         }
[01:29:40.542]         else {
[01:29:40.542]             ...future.result["stdout"] <- base::list(NULL)
[01:29:40.542]         }
[01:29:40.542]         base::close(...future.stdout)
[01:29:40.542]         ...future.stdout <- NULL
[01:29:40.542]     }
[01:29:40.542]     ...future.result$conditions <- ...future.conditions
[01:29:40.542]     ...future.result$finished <- base::Sys.time()
[01:29:40.542]     ...future.result
[01:29:40.542] }
[01:29:40.546] plan(): Setting new future strategy stack:
[01:29:40.546] List of future strategies:
[01:29:40.546] 1. sequential:
[01:29:40.546]    - args: function (..., envir = parent.frame(), workers = "<NULL>")
[01:29:40.546]    - tweaked: FALSE
[01:29:40.546]    - call: NULL
[01:29:40.547] plan(): nbrOfWorkers() = 1
[01:29:40.548] plan(): Setting new future strategy stack:
[01:29:40.548] List of future strategies:
[01:29:40.548] 1. sequential:
[01:29:40.548]    - args: function (..., abc = TRUE, envir = parent.frame(), workers = "<NULL>")
[01:29:40.548]    - tweaked: TRUE
[01:29:40.548]    - call: plan(sequential, abc = FALSE)
[01:29:40.549] plan(): nbrOfWorkers() = 1
[01:29:40.549] SequentialFuture started (and completed)
[01:29:40.549] - Launch lazy future ... done
[01:29:40.550] run() for 'SequentialFuture' ... done
[01:29:40.550] plan(): Setting new future strategy stack:
[01:29:40.550] List of future strategies:
[01:29:40.550] 1. sequential:
[01:29:40.550]    - args: function (..., abc = FALSE, envir = parent.frame(), workers = "<NULL>")
[01:29:40.550]    - tweaked: TRUE
[01:29:40.550]    - call: plan(sequential, abc = FALSE)
[01:29:40.551] plan(): nbrOfWorkers() = 1
> print(x)
[1] 2
> stopifnot(a == 0, x == 2)
> 
> 
> # Preserve nested futures
> plan(list(A = sequential, B = tweak(sequential, abc = FALSE)))
Warning: Detected 1 unknown future arguments: 'abc'
[01:29:40.552] plan(): Setting new future strategy stack:
[01:29:40.552] List of future strategies:
[01:29:40.552] 1. sequential:
[01:29:40.552]    - args: function (..., envir = parent.frame(), workers = "<NULL>")
[01:29:40.552]    - tweaked: FALSE
[01:29:40.552]    - call: plan(list(A = sequential, B = tweak(sequential, abc = FALSE)))
[01:29:40.552] 2. sequential:
[01:29:40.552]    - args: function (..., abc = FALSE, envir = parent.frame(), workers = "<NULL>")
[01:29:40.552]    - tweaked: TRUE
[01:29:40.552]    - call: plan(list(A = sequential, B = tweak(sequential, abc = FALSE)))
[01:29:40.553] plan(): nbrOfWorkers() = 1
> a <- 0
> 
> x %<-% {
+   stopifnot(identical(names(plan("list")), "B"))
+   a <- 1
+   a
+ }
[01:29:40.554] getGlobalsAndPackages() ...
[01:29:40.554] Searching for globals...
[01:29:40.558] - globals found: [6] '{', 'stopifnot', 'identical', 'names', 'plan', '<-'
[01:29:40.559] Searching for globals ... DONE
[01:29:40.559] Resolving globals: FALSE
[01:29:40.560] The total size of the 1 globals is 403.23 KiB (412912 bytes)
[01:29:40.561] The total size of the 1 globals exported for future expression ('{; stopifnot(identical(names(plan("list")), "B")); a <- 1; a; }') is 403.23 KiB.. This exceeds the maximum allowed size of 500.00 MiB (option 'future.globals.maxSize'). There is one global: 'plan' (403.23 KiB of class 'function')
[01:29:40.561] - globals: [1] 'plan'
[01:29:40.561] 
[01:29:40.561] getGlobalsAndPackages() ... DONE
[01:29:40.562] run() for 'Future' ...
[01:29:40.562] - state: 'created'
[01:29:40.562] - Future backend: 'FutureStrategy', 'sequential', 'uniprocess', 'future', 'function'
[01:29:40.562] - Future class: 'SequentialFuture', 'UniprocessFuture', 'Future', 'environment'
[01:29:40.563] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ...
[01:29:40.563]   - Field: 'label'
[01:29:40.563]   - Field: 'local'
[01:29:40.563]   - Field: 'owner'
[01:29:40.563]   - Field: 'envir'
[01:29:40.563]   - Field: 'packages'
[01:29:40.564]   - Field: 'gc'
[01:29:40.564]   - Field: 'conditions'
[01:29:40.564]   - Field: 'expr'
[01:29:40.564]   - Field: 'uuid'
[01:29:40.564]   - Field: 'seed'
[01:29:40.565]   - Field: 'version'
[01:29:40.565]   - Field: 'result'
[01:29:40.565]   - Field: 'asynchronous'
[01:29:40.565]   - Field: 'calls'
[01:29:40.565]   - Field: 'globals'
[01:29:40.566]   - Field: 'stdout'
[01:29:40.566]   - Field: 'earlySignal'
[01:29:40.566]   - Field: 'lazy'
[01:29:40.566]   - Field: 'state'
[01:29:40.566] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ... done
[01:29:40.567] - Launch lazy future ...
[01:29:40.567] Packages needed by the future expression (n = 0): <none>
[01:29:40.567] Packages needed by future strategies (n = 0): 
[01:29:40.568] {
[01:29:40.568]     {
[01:29:40.568]         {
[01:29:40.568]             ...future.startTime <- base::Sys.time()
[01:29:40.568]             {
[01:29:40.568]                 {
[01:29:40.568]                   {
[01:29:40.568]                     base::local({
[01:29:40.568]                       has_future <- base::requireNamespace("future", 
[01:29:40.568]                         quietly = TRUE)
[01:29:40.568]                       if (has_future) {
[01:29:40.568]                         ns <- base::getNamespace("future")
[01:29:40.568]                         version <- ns[[".package"]][["version"]]
[01:29:40.568]                         if (is.null(version)) 
[01:29:40.568]                           version <- utils::packageVersion("future")
[01:29:40.568]                       }
[01:29:40.568]                       else {
[01:29:40.568]                         version <- NULL
[01:29:40.568]                       }
[01:29:40.568]                       if (!has_future || version < "1.8.0") {
[01:29:40.568]                         info <- base::c(r_version = base::gsub("R version ", 
[01:29:40.568]                           "", base::R.version$version.string), 
[01:29:40.568]                           platform = base::sprintf("%s (%s-bit)", 
[01:29:40.568]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[01:29:40.568]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[01:29:40.568]                             "release", "version")], collapse = " "), 
[01:29:40.568]                           hostname = base::Sys.info()[["nodename"]])
[01:29:40.568]                         info <- base::sprintf("%s: %s", base::names(info), 
[01:29:40.568]                           info)
[01:29:40.568]                         info <- base::paste(info, collapse = "; ")
[01:29:40.568]                         if (!has_future) {
[01:29:40.568]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[01:29:40.568]                             info)
[01:29:40.568]                         }
[01:29:40.568]                         else {
[01:29:40.568]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[01:29:40.568]                             info, version)
[01:29:40.568]                         }
[01:29:40.568]                         base::stop(msg)
[01:29:40.568]                       }
[01:29:40.568]                     })
[01:29:40.568]                   }
[01:29:40.568]                   options(future.plan = NULL)
[01:29:40.568]                   Sys.unsetenv("R_FUTURE_PLAN")
[01:29:40.568]                   future::plan(list(B = function (..., abc = FALSE, 
[01:29:40.568]                     envir = parent.frame()) 
[01:29:40.568]                   strategy(..., abc = abc, envir = envir)), .cleanup = FALSE, 
[01:29:40.568]                     .init = FALSE)
[01:29:40.568]                 }
[01:29:40.568]                 ...future.workdir <- getwd()
[01:29:40.568]             }
[01:29:40.568]             ...future.oldOptions <- base::as.list(base::.Options)
[01:29:40.568]             ...future.oldEnvVars <- base::Sys.getenv()
[01:29:40.568]         }
[01:29:40.568]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[01:29:40.568]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[01:29:40.568]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[01:29:40.568]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[01:29:40.568]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[01:29:40.568]             future.stdout.windows.reencode = NULL, width = 80L)
[01:29:40.568]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[01:29:40.568]             base::names(...future.oldOptions))
[01:29:40.568]     }
[01:29:40.568]     if (FALSE) {
[01:29:40.568]     }
[01:29:40.568]     else {
[01:29:40.568]         if (TRUE) {
[01:29:40.568]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[01:29:40.568]                 open = "w")
[01:29:40.568]         }
[01:29:40.568]         else {
[01:29:40.568]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[01:29:40.568]                 windows = "NUL", "/dev/null"), open = "w")
[01:29:40.568]         }
[01:29:40.568]         base::sink(...future.stdout, type = "output", split = FALSE)
[01:29:40.568]         base::on.exit(if (!base::is.null(...future.stdout)) {
[01:29:40.568]             base::sink(type = "output", split = FALSE)
[01:29:40.568]             base::close(...future.stdout)
[01:29:40.568]         }, add = TRUE)
[01:29:40.568]     }
[01:29:40.568]     ...future.frame <- base::sys.nframe()
[01:29:40.568]     ...future.conditions <- base::list()
[01:29:40.568]     ...future.rng <- base::globalenv()$.Random.seed
[01:29:40.568]     if (FALSE) {
[01:29:40.568]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[01:29:40.568]             "...future.value", "...future.globalenv.names", ".Random.seed")
[01:29:40.568]     }
[01:29:40.568]     ...future.result <- base::tryCatch({
[01:29:40.568]         base::withCallingHandlers({
[01:29:40.568]             ...future.value <- base::withVisible(base::local({
[01:29:40.568]                 stopifnot(identical(names(plan("list")), "B"))
[01:29:40.568]                 a <- 1
[01:29:40.568]                 a
[01:29:40.568]             }))
[01:29:40.568]             future::FutureResult(value = ...future.value$value, 
[01:29:40.568]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[01:29:40.568]                   ...future.rng), globalenv = if (FALSE) 
[01:29:40.568]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[01:29:40.568]                     ...future.globalenv.names))
[01:29:40.568]                 else NULL, started = ...future.startTime, version = "1.8")
[01:29:40.568]         }, condition = base::local({
[01:29:40.568]             c <- base::c
[01:29:40.568]             inherits <- base::inherits
[01:29:40.568]             invokeRestart <- base::invokeRestart
[01:29:40.568]             length <- base::length
[01:29:40.568]             list <- base::list
[01:29:40.568]             seq.int <- base::seq.int
[01:29:40.568]             signalCondition <- base::signalCondition
[01:29:40.568]             sys.calls <- base::sys.calls
[01:29:40.568]             `[[` <- base::`[[`
[01:29:40.568]             `+` <- base::`+`
[01:29:40.568]             `<<-` <- base::`<<-`
[01:29:40.568]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[01:29:40.568]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[01:29:40.568]                   3L)]
[01:29:40.568]             }
[01:29:40.568]             function(cond) {
[01:29:40.568]                 is_error <- inherits(cond, "error")
[01:29:40.568]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[01:29:40.568]                   NULL)
[01:29:40.568]                 if (is_error) {
[01:29:40.568]                   sessionInformation <- function() {
[01:29:40.568]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[01:29:40.568]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[01:29:40.568]                       search = base::search(), system = base::Sys.info())
[01:29:40.568]                   }
[01:29:40.568]                   ...future.conditions[[length(...future.conditions) + 
[01:29:40.568]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[01:29:40.568]                     cond$call), session = sessionInformation(), 
[01:29:40.568]                     timestamp = base::Sys.time(), signaled = 0L)
[01:29:40.568]                   signalCondition(cond)
[01:29:40.568]                 }
[01:29:40.568]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[01:29:40.568]                 "immediateCondition"))) {
[01:29:40.568]                   signal <- TRUE && inherits(cond, "immediateCondition")
[01:29:40.568]                   ...future.conditions[[length(...future.conditions) + 
[01:29:40.568]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[01:29:40.568]                   if (TRUE && !signal) {
[01:29:40.568]                     muffleCondition <- function (cond, pattern = "^muffle") 
[01:29:40.568]                     {
[01:29:40.568]                       inherits <- base::inherits
[01:29:40.568]                       invokeRestart <- base::invokeRestart
[01:29:40.568]                       is.null <- base::is.null
[01:29:40.568]                       muffled <- FALSE
[01:29:40.568]                       if (inherits(cond, "message")) {
[01:29:40.568]                         muffled <- grepl(pattern, "muffleMessage")
[01:29:40.568]                         if (muffled) 
[01:29:40.568]                           invokeRestart("muffleMessage")
[01:29:40.568]                       }
[01:29:40.568]                       else if (inherits(cond, "warning")) {
[01:29:40.568]                         muffled <- grepl(pattern, "muffleWarning")
[01:29:40.568]                         if (muffled) 
[01:29:40.568]                           invokeRestart("muffleWarning")
[01:29:40.568]                       }
[01:29:40.568]                       else if (inherits(cond, "condition")) {
[01:29:40.568]                         if (!is.null(pattern)) {
[01:29:40.568]                           computeRestarts <- base::computeRestarts
[01:29:40.568]                           grepl <- base::grepl
[01:29:40.568]                           restarts <- computeRestarts(cond)
[01:29:40.568]                           for (restart in restarts) {
[01:29:40.568]                             name <- restart$name
[01:29:40.568]                             if (is.null(name)) 
[01:29:40.568]                               next
[01:29:40.568]                             if (!grepl(pattern, name)) 
[01:29:40.568]                               next
[01:29:40.568]                             invokeRestart(restart)
[01:29:40.568]                             muffled <- TRUE
[01:29:40.568]                             break
[01:29:40.568]                           }
[01:29:40.568]                         }
[01:29:40.568]                       }
[01:29:40.568]                       invisible(muffled)
[01:29:40.568]                     }
[01:29:40.568]                     muffleCondition(cond, pattern = "^muffle")
[01:29:40.568]                   }
[01:29:40.568]                 }
[01:29:40.568]                 else {
[01:29:40.568]                   if (TRUE) {
[01:29:40.568]                     muffleCondition <- function (cond, pattern = "^muffle") 
[01:29:40.568]                     {
[01:29:40.568]                       inherits <- base::inherits
[01:29:40.568]                       invokeRestart <- base::invokeRestart
[01:29:40.568]                       is.null <- base::is.null
[01:29:40.568]                       muffled <- FALSE
[01:29:40.568]                       if (inherits(cond, "message")) {
[01:29:40.568]                         muffled <- grepl(pattern, "muffleMessage")
[01:29:40.568]                         if (muffled) 
[01:29:40.568]                           invokeRestart("muffleMessage")
[01:29:40.568]                       }
[01:29:40.568]                       else if (inherits(cond, "warning")) {
[01:29:40.568]                         muffled <- grepl(pattern, "muffleWarning")
[01:29:40.568]                         if (muffled) 
[01:29:40.568]                           invokeRestart("muffleWarning")
[01:29:40.568]                       }
[01:29:40.568]                       else if (inherits(cond, "condition")) {
[01:29:40.568]                         if (!is.null(pattern)) {
[01:29:40.568]                           computeRestarts <- base::computeRestarts
[01:29:40.568]                           grepl <- base::grepl
[01:29:40.568]                           restarts <- computeRestarts(cond)
[01:29:40.568]                           for (restart in restarts) {
[01:29:40.568]                             name <- restart$name
[01:29:40.568]                             if (is.null(name)) 
[01:29:40.568]                               next
[01:29:40.568]                             if (!grepl(pattern, name)) 
[01:29:40.568]                               next
[01:29:40.568]                             invokeRestart(restart)
[01:29:40.568]                             muffled <- TRUE
[01:29:40.568]                             break
[01:29:40.568]                           }
[01:29:40.568]                         }
[01:29:40.568]                       }
[01:29:40.568]                       invisible(muffled)
[01:29:40.568]                     }
[01:29:40.568]                     muffleCondition(cond, pattern = "^muffle")
[01:29:40.568]                   }
[01:29:40.568]                 }
[01:29:40.568]             }
[01:29:40.568]         }))
[01:29:40.568]     }, error = function(ex) {
[01:29:40.568]         base::structure(base::list(value = NULL, visible = NULL, 
[01:29:40.568]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[01:29:40.568]                 ...future.rng), started = ...future.startTime, 
[01:29:40.568]             finished = Sys.time(), session_uuid = NA_character_, 
[01:29:40.568]             version = "1.8"), class = "FutureResult")
[01:29:40.568]     }, finally = {
[01:29:40.568]         if (!identical(...future.workdir, getwd())) 
[01:29:40.568]             setwd(...future.workdir)
[01:29:40.568]         {
[01:29:40.568]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[01:29:40.568]                 ...future.oldOptions$nwarnings <- NULL
[01:29:40.568]             }
[01:29:40.568]             base::options(...future.oldOptions)
[01:29:40.568]             if (.Platform$OS.type == "windows") {
[01:29:40.568]                 old_names <- names(...future.oldEnvVars)
[01:29:40.568]                 envs <- base::Sys.getenv()
[01:29:40.568]                 names <- names(envs)
[01:29:40.568]                 common <- intersect(names, old_names)
[01:29:40.568]                 added <- setdiff(names, old_names)
[01:29:40.568]                 removed <- setdiff(old_names, names)
[01:29:40.568]                 changed <- common[...future.oldEnvVars[common] != 
[01:29:40.568]                   envs[common]]
[01:29:40.568]                 NAMES <- toupper(changed)
[01:29:40.568]                 args <- list()
[01:29:40.568]                 for (kk in seq_along(NAMES)) {
[01:29:40.568]                   name <- changed[[kk]]
[01:29:40.568]                   NAME <- NAMES[[kk]]
[01:29:40.568]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.568]                     next
[01:29:40.568]                   args[[name]] <- ...future.oldEnvVars[[name]]
[01:29:40.568]                 }
[01:29:40.568]                 NAMES <- toupper(added)
[01:29:40.568]                 for (kk in seq_along(NAMES)) {
[01:29:40.568]                   name <- added[[kk]]
[01:29:40.568]                   NAME <- NAMES[[kk]]
[01:29:40.568]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.568]                     next
[01:29:40.568]                   args[[name]] <- ""
[01:29:40.568]                 }
[01:29:40.568]                 NAMES <- toupper(removed)
[01:29:40.568]                 for (kk in seq_along(NAMES)) {
[01:29:40.568]                   name <- removed[[kk]]
[01:29:40.568]                   NAME <- NAMES[[kk]]
[01:29:40.568]                   if (name != NAME && is.element(NAME, old_names)) 
[01:29:40.568]                     next
[01:29:40.568]                   args[[name]] <- ...future.oldEnvVars[[name]]
[01:29:40.568]                 }
[01:29:40.568]                 if (length(args) > 0) 
[01:29:40.568]                   base::do.call(base::Sys.setenv, args = args)
[01:29:40.568]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[01:29:40.568]             }
[01:29:40.568]             else {
[01:29:40.568]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[01:29:40.568]             }
[01:29:40.568]             {
[01:29:40.568]                 if (base::length(...future.futureOptionsAdded) > 
[01:29:40.568]                   0L) {
[01:29:40.568]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[01:29:40.568]                   base::names(opts) <- ...future.futureOptionsAdded
[01:29:40.568]                   base::options(opts)
[01:29:40.568]                 }
[01:29:40.568]                 {
[01:29:40.568]                   {
[01:29:40.568]                     NULL
[01:29:40.568]                     RNGkind("Mersenne-Twister")
[01:29:40.568]                     base::rm(list = ".Random.seed", envir = base::globalenv(), 
[01:29:40.568]                       inherits = FALSE)
[01:29:40.568]                   }
[01:29:40.568]                   options(future.plan = NULL)
[01:29:40.568]                   if (is.na(NA_character_)) 
[01:29:40.568]                     Sys.unsetenv("R_FUTURE_PLAN")
[01:29:40.568]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[01:29:40.568]                   future::plan(list(A = function (..., envir = parent.frame()) 
[01:29:40.568]                   {
[01:29:40.568]                     future <- SequentialFuture(..., envir = envir)
[01:29:40.568]                     if (!future$lazy) 
[01:29:40.568]                       future <- run(future)
[01:29:40.568]                     invisible(future)
[01:29:40.568]                   }, B = function (..., abc = FALSE, envir = parent.frame()) 
[01:29:40.568]                   strategy(..., abc = abc, envir = envir)), .cleanup = FALSE, 
[01:29:40.568]                     .init = FALSE)
[01:29:40.568]                 }
[01:29:40.568]             }
[01:29:40.568]         }
[01:29:40.568]     })
[01:29:40.568]     if (TRUE) {
[01:29:40.568]         base::sink(type = "output", split = FALSE)
[01:29:40.568]         if (TRUE) {
[01:29:40.568]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[01:29:40.568]         }
[01:29:40.568]         else {
[01:29:40.568]             ...future.result["stdout"] <- base::list(NULL)
[01:29:40.568]         }
[01:29:40.568]         base::close(...future.stdout)
[01:29:40.568]         ...future.stdout <- NULL
[01:29:40.568]     }
[01:29:40.568]     ...future.result$conditions <- ...future.conditions
[01:29:40.568]     ...future.result$finished <- base::Sys.time()
[01:29:40.568]     ...future.result
[01:29:40.568] }
[01:29:40.572] assign_globals() ...
[01:29:40.572] List of 1
[01:29:40.572]  $ plan:function (strategy = NULL, ..., substitute = TRUE, .skip = FALSE, .call = TRUE, 
[01:29:40.572]     .cleanup = TRUE, .init = TRUE)  
[01:29:40.572]  - attr(*, "where")=List of 1
[01:29:40.572]   ..$ plan:<environment: R_EmptyEnv> 
[01:29:40.572]  - attr(*, "class")= chr [1:3] "FutureGlobals" "Globals" "list"
[01:29:40.572]  - attr(*, "resolved")= logi FALSE
[01:29:40.572]  - attr(*, "total_size")= num 412912
[01:29:40.572]  - attr(*, "already-done")= logi TRUE
[01:29:40.575] - copied 'plan' to environment
[01:29:40.575] assign_globals() ... done
[01:29:40.576] plan(): Setting new future strategy stack:
[01:29:40.576] List of future strategies:
[01:29:40.576] 1. sequential:
[01:29:40.576]    - args: function (..., abc = FALSE, envir = parent.frame(), workers = "<NULL>")
[01:29:40.576]    - tweaked: TRUE
[01:29:40.576]    - call: plan(list(A = sequential, B = tweak(sequential, abc = FALSE)))
[01:29:40.577] plan(): nbrOfWorkers() = 1
[01:29:40.578] plan(): Setting new future strategy stack:
[01:29:40.578] List of future strategies:
[01:29:40.578] 1. sequential:
[01:29:40.578]    - args: function (..., envir = parent.frame(), workers = "<NULL>")
[01:29:40.578]    - tweaked: FALSE
[01:29:40.578]    - call: plan(list(A = sequential, B = tweak(sequential, abc = FALSE)))
[01:29:40.578] 2. sequential:
[01:29:40.578]    - args: function (..., abc = FALSE, envir = parent.frame(), workers = "<NULL>")
[01:29:40.578]    - tweaked: TRUE
[01:29:40.578]    - call: plan(list(A = sequential, B = tweak(sequential, abc = FALSE)))
[01:29:40.579] plan(): nbrOfWorkers() = 1
[01:29:40.579] SequentialFuture started (and completed)
[01:29:40.579] - Launch lazy future ... done
[01:29:40.580] run() for 'SequentialFuture' ... done
> print(x)
[1] 1
> stopifnot(a == 0, x == 1)
> 
> 
> message("*** y %<-% { expr } %tweak% tweaks ... DONE")
*** y %<-% { expr } %tweak% tweaks ... DONE
> 
> 
> message("*** tweak() - abc = TRUE ...")
*** tweak() - abc = TRUE ...
> 
> res <- tryCatch(tweak(multisession, gc = TRUE), condition = identity)
> stopifnot(inherits(res, "tweaked"))
> 
> ## Argument 'gc' is unknown
> res <- tryCatch(tweak(sequential, abc = TRUE), condition = identity)
> stopifnot(inherits(res, "warning"))
> 
> res <- tryCatch(tweak(multicore, abc = TRUE), condition = identity)
> stopifnot(inherits(res, "warning"))
> 
> message("*** tweak() - abc = TRUE ... DONE")
*** tweak() - abc = TRUE ... DONE
> 
> 
> message("*** tweak() - odds and ends ...")
*** tweak() - odds and ends ...
> 
> ## BUG: getGlobalsAndPackages(Formula::Formula(~ x)) would produce
> ## "the condition has length > 1" warnings.
> ## https://github.com/HenrikBengtsson/future/issues/395
> length.Formula <- function(x) c(1L, 1L)
> expr <- structure(y ~ x, class = "Formula")
> stopifnot(length(length(expr)) == 2L)
> gp <- future::getGlobalsAndPackages(expr)
[01:29:40.581] getGlobalsAndPackages() ...
[01:29:40.582] Searching for globals...
[01:29:40.584] - globals found: [4] '{', 'y', 'x', '~'
[01:29:40.584] Searching for globals ... DONE
[01:29:40.585] Resolving globals: FALSE
[01:29:40.585] The total size of the 1 globals is 56 bytes (56 bytes)
[01:29:40.586] The total size of the 1 globals exported for future expression ('y ~ x') is 56 bytes.. This exceeds the maximum allowed size of 500.00 MiB (option 'future.globals.maxSize'). There is one global: 'x' (56 bytes of class 'numeric')
[01:29:40.586] - globals: [1] 'x'
[01:29:40.586] 
[01:29:40.586] getGlobalsAndPackages() ... DONE
> stopifnot(
+   !inherits(gp, "error"),
+   is.list(gp),
+   all(c("expr", "globals", "packages") %in% names(gp))
+ )
> 
> message("*** tweak() - odds and ends ... DONE")
*** tweak() - odds and ends ... DONE
> 
> 
> message("*** tweak() - exceptions ...")
*** tweak() - exceptions ...
> 
> res <- try(tweak("<unknown-future-strategy>"), silent = TRUE)
> stopifnot(inherits(res, "try-error"))
> 
> res <- try(tweak(base::eval), silent = TRUE)
> stopifnot(inherits(res, "try-error"))
> 
> res <- try(tweak(sequential, "unnamed-argument"), silent = TRUE)
> stopifnot(inherits(res, "try-error"))
> 
> ## Arguments that must not be tweaked
> res <- try(tweak(sequential, lazy = TRUE), silent = TRUE)
> stopifnot(inherits(res, "try-error"))
> 
> res <- try(tweak(sequential, asynchronous = FALSE), silent = TRUE)
> stopifnot(inherits(res, "try-error"))
> 
> res <- try(tweak(sequential, seed = 42L), silent = TRUE)
> stopifnot(inherits(res, "try-error"))
> 
> message("*** tweak() - exceptions ... DONE")
*** tweak() - exceptions ... DONE
> 
> 
> message("*** Tweaking future strategies ... DONE")
*** Tweaking future strategies ... DONE
> 
> source("incl/end.R")
[01:29:40.634] plan(): Setting new future strategy stack:
[01:29:40.634] List of future strategies:
[01:29:40.634] 1. FutureStrategy:
[01:29:40.634]    - args: function (..., envir = parent.frame(), workers = "<NULL>")
[01:29:40.634]    - tweaked: FALSE
[01:29:40.634]    - call: future::plan(oplan)
[01:29:40.635] plan(): nbrOfWorkers() = 1
Failed to undo environment variables:
 - Expected environment variables: [n=204] '!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', '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_RTOOLS43_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_SUBDIRS_STRICT_', '_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_USE_ALIASES_FROM_CRAN_', '_R_CLASS_MATRIX_ARRAY_', '_R_INSTALL_TIME_PATCHES_', '_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 
   0.65    0.04    1.25