R Under development (unstable) (2023-06-30 r84625 ucrt) -- "Unsuffered Consequences"
Copyright (C) 2023 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> source("incl/start,load-only.R")
[18:03:27.543] plan(): Setting new future strategy stack:
[18:03:27.545] List of future strategies:
[18:03:27.545] 1. sequential:
[18:03:27.545]    - args: function (..., envir = parent.frame())
[18:03:27.545]    - tweaked: FALSE
[18:03:27.545]    - call: future::plan("sequential")
[18:03:27.561] 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")
[18:03:27.573] Option 'future.startup.script': TRUE
[18:03:27.574] Future startup scripts considered: '.future.R', '~/.future.R'
[18:03:27.574] 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
[18:03:27.596] [local output] makeClusterPSOCK() ...
[18:03:27.625] [local output] Workers: [n = 1] 'localhost'
[18:03:27.632] [local output] Base port: 20092
[18:03:27.632] [local output] Getting setup options for 1 cluster nodes ...
[18:03:27.632] [local output]  - Node 1 of 1 ...
[18:03:27.633] [local output] localMachine=TRUE => revtunnel=FALSE

[18:03:27.634] Testing if worker's PID can be inferred: '"D:/RCompile/recent/R/bin/x64/Rscript" -e "try(suppressWarnings(cat(Sys.getpid(),file=\"D:/temp/RtmpYjwq4Y/worker.rank=1.parallelly.parent=27768.6c7878404c58.pid\")), silent = TRUE)" -e "file.exists(\"D:/temp/RtmpYjwq4Y/worker.rank=1.parallelly.parent=27768.6c7878404c58.pid\")"'
[18:03:28.083] - Possible to infer worker's PID: TRUE
[18:03:28.084] [local output] Rscript port: 20092

[18:03:28.084] [local output] Getting setup options for 1 cluster nodes ... done
[18:03:28.084] [local output]  - Parallel setup requested for some PSOCK nodes
[18:03:28.085] [local output] Setting up PSOCK nodes in parallel
[18:03:28.085] List of 36
[18:03:28.085]  $ worker          : chr "localhost"
[18:03:28.085]   ..- attr(*, "localhost")= logi TRUE
[18:03:28.085]  $ master          : chr "localhost"
[18:03:28.085]  $ port            : int 20092
[18:03:28.085]  $ connectTimeout  : num 120
[18:03:28.085]  $ timeout         : num 120
[18:03:28.085]  $ rscript         : chr "\"D:/RCompile/recent/R/bin/x64/Rscript\""
[18:03:28.085]  $ homogeneous     : logi TRUE
[18:03:28.085]  $ rscript_args    : chr "--default-packages=datasets,utils,grDevices,graphics,stats,methods -e \"#label=tweak.R:27768:CRANWIN3:CRAN\" -e"| __truncated__
[18:03:28.085]  $ rscript_envs    : NULL
[18:03:28.085]  $ rscript_libs    : NULL
[18:03:28.085]  $ rscript_startup : NULL
[18:03:28.085]  $ rscript_sh      : chr "cmd"
[18:03:28.085]  $ default_packages: chr [1:6] "datasets" "utils" "grDevices" "graphics" ...
[18:03:28.085]  $ methods         : logi TRUE
[18:03:28.085]  $ socketOptions   : chr "no-delay"
[18:03:28.085]  $ useXDR          : logi FALSE
[18:03:28.085]  $ outfile         : chr "/dev/null"
[18:03:28.085]  $ renice          : int NA
[18:03:28.085]  $ rshcmd          : NULL
[18:03:28.085]  $ user            : chr(0) 
[18:03:28.085]  $ revtunnel       : logi FALSE
[18:03:28.085]  $ rshlogfile      : NULL
[18:03:28.085]  $ rshopts         : chr(0) 
[18:03:28.085]  $ rank            : int 1
[18:03:28.085]  $ manual          : logi FALSE
[18:03:28.085]  $ dryrun          : logi FALSE
[18:03:28.085]  $ quiet           : logi FALSE
[18:03:28.085]  $ setup_strategy  : chr "parallel"
[18:03:28.085]  $ local_cmd       : chr "\"D:/RCompile/recent/R/bin/x64/Rscript\" --default-packages=datasets,utils,grDevices,graphics,stats,methods -e "| __truncated__
[18:03:28.085]  $ pidfile         : chr "D:/temp/RtmpYjwq4Y/worker.rank=1.parallelly.parent=27768.6c7878404c58.pid"
[18:03:28.085]  $ rshcmd_label    : NULL
[18:03:28.085]  $ rsh_call        : NULL
[18:03:28.085]  $ cmd             : chr "\"D:/RCompile/recent/R/bin/x64/Rscript\" --default-packages=datasets,utils,grDevices,graphics,stats,methods -e "| __truncated__
[18:03:28.085]  $ localMachine    : logi TRUE
[18:03:28.085]  $ make_fcn        :function (worker = getOption2("parallelly.localhost.hostname", "localhost"), 
[18:03:28.085]     master = NULL, port, connectTimeout = getOption2("parallelly.makeNodePSOCK.connectTimeout", 
[18:03:28.085]         2 * 60), timeout = getOption2("parallelly.makeNodePSOCK.timeout", 
[18:03:28.085]         30 * 24 * 60 * 60), rscript = NULL, homogeneous = NULL, rscript_args = NULL, 
[18:03:28.085]     rscript_envs = NULL, rscript_libs = NULL, rscript_startup = NULL, rscript_sh = c("auto", 
[18:03:28.085]         "cmd", "sh"), default_packages = c("datasets", "utils", "grDevices", 
[18:03:28.085]         "graphics", "stats", if (methods) "methods"), methods = TRUE, socketOptions = getOption2("parallelly.makeNodePSOCK.socketOptions", 
[18:03:28.085]         "no-delay"), useXDR = getOption2("parallelly.makeNodePSOCK.useXDR", 
[18:03:28.085]         FALSE), outfile = "/dev/null", renice = NA_integer_, rshcmd = getOption2("parallelly.makeNodePSOCK.rshcmd", 
[18:03:28.085]         NULL), user = NULL, revtunnel = NA, rshlogfile = NULL, rshopts = getOption2("parallelly.makeNodePSOCK.rshopts", 
[18:03:28.085]         NULL), rank = 1L, manual = FALSE, dryrun = FALSE, quiet = FALSE, 
[18:03:28.085]     setup_strategy = getOption2("parallelly.makeNodePSOCK.setup_strategy", 
[18:03:28.085]         "parallel"), action = c("launch", "options"), verbose = FALSE)  
[18:03:28.085]  $ arguments       :List of 28
[18:03:28.085]   ..$ worker          : chr "localhost"
[18:03:28.085]   ..$ master          : NULL
[18:03:28.085]   ..$ port            : int 20092
[18:03:28.085]   ..$ connectTimeout  : num 120
[18:03:28.085]   ..$ timeout         : num 120
[18:03:28.085]   ..$ rscript         : NULL
[18:03:28.085]   ..$ homogeneous     : NULL
[18:03:28.085]   ..$ rscript_args    : NULL
[18:03:28.085]   ..$ rscript_envs    : NULL
[18:03:28.085]   ..$ rscript_libs    : NULL
[18:03:28.085]   ..$ rscript_startup : NULL
[18:03:28.085]   ..$ rscript_sh      : chr [1:3] "auto" "cmd" "sh"
[18:03:28.085]   ..$ default_packages: chr [1:6] "datasets" "utils" "grDevices" "graphics" ...
[18:03:28.085]   ..$ methods         : logi TRUE
[18:03:28.085]   ..$ socketOptions   : chr "no-delay"
[18:03:28.085]   ..$ useXDR          : logi FALSE
[18:03:28.085]   ..$ outfile         : chr "/dev/null"
[18:03:28.085]   ..$ renice          : int NA
[18:03:28.085]   ..$ rshcmd          : NULL
[18:03:28.085]   ..$ user            : NULL
[18:03:28.085]   ..$ revtunnel       : logi NA
[18:03:28.085]   ..$ rshlogfile      : NULL
[18:03:28.085]   ..$ rshopts         : NULL
[18:03:28.085]   ..$ rank            : int 1
[18:03:28.085]   ..$ manual          : logi FALSE
[18:03:28.085]   ..$ dryrun          : logi FALSE
[18:03:28.085]   ..$ quiet           : logi FALSE
[18:03:28.085]   ..$ setup_strategy  : chr "parallel"
[18:03:28.085]  - attr(*, "class")= chr [1:2] "makeNodePSOCKOptions" "makeNodeOptions"
[18:03:28.109] [local output] System call to launch all workers:
[18:03:28.110] [local output] "D:/RCompile/recent/R/bin/x64/Rscript" --default-packages=datasets,utils,grDevices,graphics,stats,methods -e "#label=tweak.R:27768:CRANWIN3:CRAN" -e "try(suppressWarnings(cat(Sys.getpid(),file=\"D:/temp/RtmpYjwq4Y/worker.rank=1.parallelly.parent=27768.6c7878404c58.pid\")), silent = TRUE)" -e "options(socketOptions = \"no-delay\")" -e "workRSOCK <- tryCatch(parallel:::.workRSOCK, error=function(e) parallel:::.slaveRSOCK); workRSOCK()" MASTER=localhost PORT=20092 OUT=/dev/null TIMEOUT=120 XDR=FALSE SETUPTIMEOUT=120 SETUPSTRATEGY=parallel
[18:03:28.110] [local output] Starting PSOCK main server
[18:03:28.114] [local output] Workers launched
[18:03:28.115] [local output] Waiting for workers to connect back
[18:03:28.115]  - [local output] 0 workers out of 1 ready
[18:03:28.285]  - [local output] 0 workers out of 1 ready
[18:03:28.286]  - [local output] 1 workers out of 1 ready
[18:03:28.286] [local output] Launching of workers completed
[18:03:28.286] [local output] Collecting session information from workers
[18:03:28.287] [local output]  - Worker #1 of 1
[18:03:28.287] [local output] makeClusterPSOCK() ... done
[18:03:28.288] plan(): Setting new future strategy stack:
[18:03:28.288] List of future strategies:
[18:03:28.288] 1. cluster:
[18:03:28.288]    - args: function (..., workers = "<Socket cluster with 1 nodes where 1 node is on host 'localhost' (R Under development (unstable) (2023-06-30 r84625 ucrt), platform x86_64-w64-mingw32)>", envir = parent.frame())
[18:03:28.288]    - tweaked: TRUE
[18:03:28.288]    - call: future::plan(future::cluster, workers = cl)
[18:03:28.309] plan(): plan_init() of 'tweaked', 'cluster', 'multiprocess', 'future', 'function' ...
[18:03:28.309] cluster:
[18:03:28.309] - args: function (..., workers = "<Socket cluster with 1 nodes where 1 node is on host 'localhost' (R Under development (unstable) (2023-06-30 r84625 ucrt), platform x86_64-w64-mingw32)>", envir = parent.frame())
[18:03:28.309] - tweaked: TRUE
[18:03:28.309] - call: future::plan(future::cluster, workers = cl)
[18:03:28.313] getGlobalsAndPackages() ...
[18:03:28.313] Not searching for globals
[18:03:28.313] - globals: [0] <none>
[18:03:28.313] getGlobalsAndPackages() ... DONE
[18:03:28.321] Packages needed by the future expression (n = 0): <none>
[18:03:28.321] Packages needed by future strategies (n = 0): <none>
[18:03:28.322] {
[18:03:28.322]     {
[18:03:28.322]         {
[18:03:28.322]             ...future.startTime <- base::Sys.time()
[18:03:28.322]             {
[18:03:28.322]                 {
[18:03:28.322]                   {
[18:03:28.322]                     base::local({
[18:03:28.322]                       has_future <- base::requireNamespace("future", 
[18:03:28.322]                         quietly = TRUE)
[18:03:28.322]                       if (has_future) {
[18:03:28.322]                         ns <- base::getNamespace("future")
[18:03:28.322]                         version <- ns[[".package"]][["version"]]
[18:03:28.322]                         if (is.null(version)) 
[18:03:28.322]                           version <- utils::packageVersion("future")
[18:03:28.322]                       }
[18:03:28.322]                       else {
[18:03:28.322]                         version <- NULL
[18:03:28.322]                       }
[18:03:28.322]                       if (!has_future || version < "1.8.0") {
[18:03:28.322]                         info <- base::c(r_version = base::gsub("R version ", 
[18:03:28.322]                           "", base::R.version$version.string), 
[18:03:28.322]                           platform = base::sprintf("%s (%s-bit)", 
[18:03:28.322]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[18:03:28.322]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[18:03:28.322]                             "release", "version")], collapse = " "), 
[18:03:28.322]                           hostname = base::Sys.info()[["nodename"]])
[18:03:28.322]                         info <- base::sprintf("%s: %s", base::names(info), 
[18:03:28.322]                           info)
[18:03:28.322]                         info <- base::paste(info, collapse = "; ")
[18:03:28.322]                         if (!has_future) {
[18:03:28.322]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[18:03:28.322]                             info)
[18:03:28.322]                         }
[18:03:28.322]                         else {
[18:03:28.322]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[18:03:28.322]                             info, version)
[18:03:28.322]                         }
[18:03:28.322]                         base::stop(msg)
[18:03:28.322]                       }
[18:03:28.322]                     })
[18:03:28.322]                   }
[18:03:28.322]                   options(future.plan = NULL)
[18:03:28.322]                   Sys.unsetenv("R_FUTURE_PLAN")
[18:03:28.322]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[18:03:28.322]                 }
[18:03:28.322]                 ...future.workdir <- getwd()
[18:03:28.322]             }
[18:03:28.322]             ...future.oldOptions <- base::as.list(base::.Options)
[18:03:28.322]             ...future.oldEnvVars <- base::Sys.getenv()
[18:03:28.322]         }
[18:03:28.322]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[18:03:28.322]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[18:03:28.322]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[18:03:28.322]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[18:03:28.322]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[18:03:28.322]             future.stdout.windows.reencode = NULL, width = 80L)
[18:03:28.322]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[18:03:28.322]             base::names(...future.oldOptions))
[18:03:28.322]     }
[18:03:28.322]     if (FALSE) {
[18:03:28.322]     }
[18:03:28.322]     else {
[18:03:28.322]         if (TRUE) {
[18:03:28.322]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[18:03:28.322]                 open = "w")
[18:03:28.322]         }
[18:03:28.322]         else {
[18:03:28.322]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[18:03:28.322]                 windows = "NUL", "/dev/null"), open = "w")
[18:03:28.322]         }
[18:03:28.322]         base::sink(...future.stdout, type = "output", split = FALSE)
[18:03:28.322]         base::on.exit(if (!base::is.null(...future.stdout)) {
[18:03:28.322]             base::sink(type = "output", split = FALSE)
[18:03:28.322]             base::close(...future.stdout)
[18:03:28.322]         }, add = TRUE)
[18:03:28.322]     }
[18:03:28.322]     ...future.frame <- base::sys.nframe()
[18:03:28.322]     ...future.conditions <- base::list()
[18:03:28.322]     ...future.rng <- base::globalenv()$.Random.seed
[18:03:28.322]     if (FALSE) {
[18:03:28.322]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[18:03:28.322]             "...future.value", "...future.globalenv.names", ".Random.seed")
[18:03:28.322]     }
[18:03:28.322]     ...future.result <- base::tryCatch({
[18:03:28.322]         base::withCallingHandlers({
[18:03:28.322]             ...future.value <- base::withVisible(base::local({
[18:03:28.322]                 ...future.makeSendCondition <- local({
[18:03:28.322]                   sendCondition <- NULL
[18:03:28.322]                   function(frame = 1L) {
[18:03:28.322]                     if (is.function(sendCondition)) 
[18:03:28.322]                       return(sendCondition)
[18:03:28.322]                     ns <- getNamespace("parallel")
[18:03:28.322]                     if (exists("sendData", mode = "function", 
[18:03:28.322]                       envir = ns)) {
[18:03:28.322]                       parallel_sendData <- get("sendData", mode = "function", 
[18:03:28.322]                         envir = ns)
[18:03:28.322]                       envir <- sys.frame(frame)
[18:03:28.322]                       master <- NULL
[18:03:28.322]                       while (!identical(envir, .GlobalEnv) && 
[18:03:28.322]                         !identical(envir, emptyenv())) {
[18:03:28.322]                         if (exists("master", mode = "list", envir = envir, 
[18:03:28.322]                           inherits = FALSE)) {
[18:03:28.322]                           master <- get("master", mode = "list", 
[18:03:28.322]                             envir = envir, inherits = FALSE)
[18:03:28.322]                           if (inherits(master, c("SOCKnode", 
[18:03:28.322]                             "SOCK0node"))) {
[18:03:28.322]                             sendCondition <<- function(cond) {
[18:03:28.322]                               data <- list(type = "VALUE", value = cond, 
[18:03:28.322]                                 success = TRUE)
[18:03:28.322]                               parallel_sendData(master, data)
[18:03:28.322]                             }
[18:03:28.322]                             return(sendCondition)
[18:03:28.322]                           }
[18:03:28.322]                         }
[18:03:28.322]                         frame <- frame + 1L
[18:03:28.322]                         envir <- sys.frame(frame)
[18:03:28.322]                       }
[18:03:28.322]                     }
[18:03:28.322]                     sendCondition <<- function(cond) NULL
[18:03:28.322]                   }
[18:03:28.322]                 })
[18:03:28.322]                 withCallingHandlers({
[18:03:28.322]                   NA
[18:03:28.322]                 }, immediateCondition = function(cond) {
[18:03:28.322]                   sendCondition <- ...future.makeSendCondition()
[18:03:28.322]                   sendCondition(cond)
[18:03:28.322]                   muffleCondition <- function (cond, pattern = "^muffle") 
[18:03:28.322]                   {
[18:03:28.322]                     inherits <- base::inherits
[18:03:28.322]                     invokeRestart <- base::invokeRestart
[18:03:28.322]                     is.null <- base::is.null
[18:03:28.322]                     muffled <- FALSE
[18:03:28.322]                     if (inherits(cond, "message")) {
[18:03:28.322]                       muffled <- grepl(pattern, "muffleMessage")
[18:03:28.322]                       if (muffled) 
[18:03:28.322]                         invokeRestart("muffleMessage")
[18:03:28.322]                     }
[18:03:28.322]                     else if (inherits(cond, "warning")) {
[18:03:28.322]                       muffled <- grepl(pattern, "muffleWarning")
[18:03:28.322]                       if (muffled) 
[18:03:28.322]                         invokeRestart("muffleWarning")
[18:03:28.322]                     }
[18:03:28.322]                     else if (inherits(cond, "condition")) {
[18:03:28.322]                       if (!is.null(pattern)) {
[18:03:28.322]                         computeRestarts <- base::computeRestarts
[18:03:28.322]                         grepl <- base::grepl
[18:03:28.322]                         restarts <- computeRestarts(cond)
[18:03:28.322]                         for (restart in restarts) {
[18:03:28.322]                           name <- restart$name
[18:03:28.322]                           if (is.null(name)) 
[18:03:28.322]                             next
[18:03:28.322]                           if (!grepl(pattern, name)) 
[18:03:28.322]                             next
[18:03:28.322]                           invokeRestart(restart)
[18:03:28.322]                           muffled <- TRUE
[18:03:28.322]                           break
[18:03:28.322]                         }
[18:03:28.322]                       }
[18:03:28.322]                     }
[18:03:28.322]                     invisible(muffled)
[18:03:28.322]                   }
[18:03:28.322]                   muffleCondition(cond)
[18:03:28.322]                 })
[18:03:28.322]             }))
[18:03:28.322]             future::FutureResult(value = ...future.value$value, 
[18:03:28.322]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[18:03:28.322]                   ...future.rng), globalenv = if (FALSE) 
[18:03:28.322]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[18:03:28.322]                     ...future.globalenv.names))
[18:03:28.322]                 else NULL, started = ...future.startTime, version = "1.8")
[18:03:28.322]         }, condition = base::local({
[18:03:28.322]             c <- base::c
[18:03:28.322]             inherits <- base::inherits
[18:03:28.322]             invokeRestart <- base::invokeRestart
[18:03:28.322]             length <- base::length
[18:03:28.322]             list <- base::list
[18:03:28.322]             seq.int <- base::seq.int
[18:03:28.322]             signalCondition <- base::signalCondition
[18:03:28.322]             sys.calls <- base::sys.calls
[18:03:28.322]             `[[` <- base::`[[`
[18:03:28.322]             `+` <- base::`+`
[18:03:28.322]             `<<-` <- base::`<<-`
[18:03:28.322]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[18:03:28.322]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[18:03:28.322]                   3L)]
[18:03:28.322]             }
[18:03:28.322]             function(cond) {
[18:03:28.322]                 is_error <- inherits(cond, "error")
[18:03:28.322]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[18:03:28.322]                   NULL)
[18:03:28.322]                 if (is_error) {
[18:03:28.322]                   sessionInformation <- function() {
[18:03:28.322]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[18:03:28.322]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[18:03:28.322]                       search = base::search(), system = base::Sys.info())
[18:03:28.322]                   }
[18:03:28.322]                   ...future.conditions[[length(...future.conditions) + 
[18:03:28.322]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[18:03:28.322]                     cond$call), session = sessionInformation(), 
[18:03:28.322]                     timestamp = base::Sys.time(), signaled = 0L)
[18:03:28.322]                   signalCondition(cond)
[18:03:28.322]                 }
[18:03:28.322]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[18:03:28.322]                 "immediateCondition"))) {
[18:03:28.322]                   signal <- TRUE && inherits(cond, "immediateCondition")
[18:03:28.322]                   ...future.conditions[[length(...future.conditions) + 
[18:03:28.322]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[18:03:28.322]                   if (TRUE && !signal) {
[18:03:28.322]                     muffleCondition <- function (cond, pattern = "^muffle") 
[18:03:28.322]                     {
[18:03:28.322]                       inherits <- base::inherits
[18:03:28.322]                       invokeRestart <- base::invokeRestart
[18:03:28.322]                       is.null <- base::is.null
[18:03:28.322]                       muffled <- FALSE
[18:03:28.322]                       if (inherits(cond, "message")) {
[18:03:28.322]                         muffled <- grepl(pattern, "muffleMessage")
[18:03:28.322]                         if (muffled) 
[18:03:28.322]                           invokeRestart("muffleMessage")
[18:03:28.322]                       }
[18:03:28.322]                       else if (inherits(cond, "warning")) {
[18:03:28.322]                         muffled <- grepl(pattern, "muffleWarning")
[18:03:28.322]                         if (muffled) 
[18:03:28.322]                           invokeRestart("muffleWarning")
[18:03:28.322]                       }
[18:03:28.322]                       else if (inherits(cond, "condition")) {
[18:03:28.322]                         if (!is.null(pattern)) {
[18:03:28.322]                           computeRestarts <- base::computeRestarts
[18:03:28.322]                           grepl <- base::grepl
[18:03:28.322]                           restarts <- computeRestarts(cond)
[18:03:28.322]                           for (restart in restarts) {
[18:03:28.322]                             name <- restart$name
[18:03:28.322]                             if (is.null(name)) 
[18:03:28.322]                               next
[18:03:28.322]                             if (!grepl(pattern, name)) 
[18:03:28.322]                               next
[18:03:28.322]                             invokeRestart(restart)
[18:03:28.322]                             muffled <- TRUE
[18:03:28.322]                             break
[18:03:28.322]                           }
[18:03:28.322]                         }
[18:03:28.322]                       }
[18:03:28.322]                       invisible(muffled)
[18:03:28.322]                     }
[18:03:28.322]                     muffleCondition(cond, pattern = "^muffle")
[18:03:28.322]                   }
[18:03:28.322]                 }
[18:03:28.322]                 else {
[18:03:28.322]                   if (TRUE) {
[18:03:28.322]                     muffleCondition <- function (cond, pattern = "^muffle") 
[18:03:28.322]                     {
[18:03:28.322]                       inherits <- base::inherits
[18:03:28.322]                       invokeRestart <- base::invokeRestart
[18:03:28.322]                       is.null <- base::is.null
[18:03:28.322]                       muffled <- FALSE
[18:03:28.322]                       if (inherits(cond, "message")) {
[18:03:28.322]                         muffled <- grepl(pattern, "muffleMessage")
[18:03:28.322]                         if (muffled) 
[18:03:28.322]                           invokeRestart("muffleMessage")
[18:03:28.322]                       }
[18:03:28.322]                       else if (inherits(cond, "warning")) {
[18:03:28.322]                         muffled <- grepl(pattern, "muffleWarning")
[18:03:28.322]                         if (muffled) 
[18:03:28.322]                           invokeRestart("muffleWarning")
[18:03:28.322]                       }
[18:03:28.322]                       else if (inherits(cond, "condition")) {
[18:03:28.322]                         if (!is.null(pattern)) {
[18:03:28.322]                           computeRestarts <- base::computeRestarts
[18:03:28.322]                           grepl <- base::grepl
[18:03:28.322]                           restarts <- computeRestarts(cond)
[18:03:28.322]                           for (restart in restarts) {
[18:03:28.322]                             name <- restart$name
[18:03:28.322]                             if (is.null(name)) 
[18:03:28.322]                               next
[18:03:28.322]                             if (!grepl(pattern, name)) 
[18:03:28.322]                               next
[18:03:28.322]                             invokeRestart(restart)
[18:03:28.322]                             muffled <- TRUE
[18:03:28.322]                             break
[18:03:28.322]                           }
[18:03:28.322]                         }
[18:03:28.322]                       }
[18:03:28.322]                       invisible(muffled)
[18:03:28.322]                     }
[18:03:28.322]                     muffleCondition(cond, pattern = "^muffle")
[18:03:28.322]                   }
[18:03:28.322]                 }
[18:03:28.322]             }
[18:03:28.322]         }))
[18:03:28.322]     }, error = function(ex) {
[18:03:28.322]         base::structure(base::list(value = NULL, visible = NULL, 
[18:03:28.322]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[18:03:28.322]                 ...future.rng), started = ...future.startTime, 
[18:03:28.322]             finished = Sys.time(), session_uuid = NA_character_, 
[18:03:28.322]             version = "1.8"), class = "FutureResult")
[18:03:28.322]     }, finally = {
[18:03:28.322]         if (!identical(...future.workdir, getwd())) 
[18:03:28.322]             setwd(...future.workdir)
[18:03:28.322]         {
[18:03:28.322]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[18:03:28.322]                 ...future.oldOptions$nwarnings <- NULL
[18:03:28.322]             }
[18:03:28.322]             base::options(...future.oldOptions)
[18:03:28.322]             if (.Platform$OS.type == "windows") {
[18:03:28.322]                 old_names <- names(...future.oldEnvVars)
[18:03:28.322]                 envs <- base::Sys.getenv()
[18:03:28.322]                 names <- names(envs)
[18:03:28.322]                 common <- intersect(names, old_names)
[18:03:28.322]                 added <- setdiff(names, old_names)
[18:03:28.322]                 removed <- setdiff(old_names, names)
[18:03:28.322]                 changed <- common[...future.oldEnvVars[common] != 
[18:03:28.322]                   envs[common]]
[18:03:28.322]                 NAMES <- toupper(changed)
[18:03:28.322]                 args <- list()
[18:03:28.322]                 for (kk in seq_along(NAMES)) {
[18:03:28.322]                   name <- changed[[kk]]
[18:03:28.322]                   NAME <- NAMES[[kk]]
[18:03:28.322]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.322]                     next
[18:03:28.322]                   args[[name]] <- ...future.oldEnvVars[[name]]
[18:03:28.322]                 }
[18:03:28.322]                 NAMES <- toupper(added)
[18:03:28.322]                 for (kk in seq_along(NAMES)) {
[18:03:28.322]                   name <- added[[kk]]
[18:03:28.322]                   NAME <- NAMES[[kk]]
[18:03:28.322]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.322]                     next
[18:03:28.322]                   args[[name]] <- ""
[18:03:28.322]                 }
[18:03:28.322]                 NAMES <- toupper(removed)
[18:03:28.322]                 for (kk in seq_along(NAMES)) {
[18:03:28.322]                   name <- removed[[kk]]
[18:03:28.322]                   NAME <- NAMES[[kk]]
[18:03:28.322]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.322]                     next
[18:03:28.322]                   args[[name]] <- ...future.oldEnvVars[[name]]
[18:03:28.322]                 }
[18:03:28.322]                 if (length(args) > 0) 
[18:03:28.322]                   base::do.call(base::Sys.setenv, args = args)
[18:03:28.322]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[18:03:28.322]             }
[18:03:28.322]             else {
[18:03:28.322]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[18:03:28.322]             }
[18:03:28.322]             {
[18:03:28.322]                 if (base::length(...future.futureOptionsAdded) > 
[18:03:28.322]                   0L) {
[18:03:28.322]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[18:03:28.322]                   base::names(opts) <- ...future.futureOptionsAdded
[18:03:28.322]                   base::options(opts)
[18:03:28.322]                 }
[18:03:28.322]                 {
[18:03:28.322]                   NULL
[18:03:28.322]                   options(future.plan = NULL)
[18:03:28.322]                   if (is.na(NA_character_)) 
[18:03:28.322]                     Sys.unsetenv("R_FUTURE_PLAN")
[18:03:28.322]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[18:03:28.322]                   future::plan(list(function (..., workers = list(
[18:03:28.322]                     list(con = 4L, host = "localhost", rank = 0L, 
[18:03:28.322]                       session_info = list(r = list(platform = "x86_64-w64-mingw32", 
[18:03:28.322]                         arch = "x86_64", os = "mingw32", crt = "ucrt", 
[18:03:28.322]                         system = "x86_64, mingw32", status = "Under development (unstable)", 
[18:03:28.322]                         major = "4", minor = "4.0", year = "2023", 
[18:03:28.322]                         month = "06", day = "30", `svn rev` = "84625", 
[18:03:28.322]                         language = "R", version.string = "R Under development (unstable) (2023-06-30 r84625 ucrt)", 
[18:03:28.322]                         nickname = "Unsuffered Consequences", 
[18:03:28.322]                         os.type = "windows"), system = list(sysname = "Windows", 
[18:03:28.322]                         release = "Server x64", version = "build 20348", 
[18:03:28.322]                         nodename = "CRANWIN3", machine = "x86-64", 
[18:03:28.322]                         login = "CRAN", user = "CRAN", effective_user = "CRAN"), 
[18:03:28.322]                         libs = c("D:/temp/Rtmp67Lu9b/RLIBS_19fe819742e2c", 
[18:03:28.322]                         "D:/RCompile/recent/R/library"), pkgs = NULL, 
[18:03:28.322]                         pwd = "d:/RCompile/CRANincoming/R-devel/future.Rcheck/tests", 
[18:03:28.322]                         process = list(pid = 119656L)))), envir = parent.frame()) 
[18:03:28.322]                   strategy(..., workers = workers, envir = envir)), 
[18:03:28.322]                     .cleanup = FALSE, .init = FALSE)
[18:03:28.322]                 }
[18:03:28.322]             }
[18:03:28.322]         }
[18:03:28.322]     })
[18:03:28.322]     if (TRUE) {
[18:03:28.322]         base::sink(type = "output", split = FALSE)
[18:03:28.322]         if (TRUE) {
[18:03:28.322]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[18:03:28.322]         }
[18:03:28.322]         else {
[18:03:28.322]             ...future.result["stdout"] <- base::list(NULL)
[18:03:28.322]         }
[18:03:28.322]         base::close(...future.stdout)
[18:03:28.322]         ...future.stdout <- NULL
[18:03:28.322]     }
[18:03:28.322]     ...future.result$conditions <- ...future.conditions
[18:03:28.322]     ...future.result$finished <- base::Sys.time()
[18:03:28.322]     ...future.result
[18:03:28.322] }
[18:03:28.417] ClusterFuture started
[18:03:28.418] result() for ClusterFuture ...
[18:03:28.419] receiveMessageFromWorker() for ClusterFuture ...
[18:03:28.419] - Validating connection of ClusterFuture
[18:03:28.476] - received message: FutureResult
[18:03:28.476] - Received FutureResult
[18:03:28.480] - Erased future from FutureRegistry
[18:03:28.481] result() for ClusterFuture ...
[18:03:28.481] - result already collected: FutureResult
[18:03:28.481] result() for ClusterFuture ... done
[18:03:28.481] receiveMessageFromWorker() for ClusterFuture ... done
[18:03:28.481] result() for ClusterFuture ... done
[18:03:28.482] result() for ClusterFuture ...
[18:03:28.482] - result already collected: FutureResult
[18:03:28.482] result() for ClusterFuture ... done
[18:03:28.482] plan(): plan_init() of 'tweaked', 'cluster', 'multiprocess', 'future', 'function' ... DONE
[18:03:28.483] plan(): nbrOfWorkers() = 1
[18:03:28.484] plan(): Setting new future strategy stack:
[18:03:28.484] List of future strategies:
[18:03:28.484] 1. sequential:
[18:03:28.484]    - args: function (..., envir = parent.frame())
[18:03:28.484]    - tweaked: FALSE
[18:03:28.484]    - call: future::plan("sequential")
[18:03:28.485] 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)
[18:03:28.485] plan(): Setting new future strategy stack:
[18:03:28.486] List of future strategies:
[18:03:28.486] 1. sequential:
[18:03:28.486]    - args: function (..., envir = parent.frame())
[18:03:28.486]    - tweaked: FALSE
[18:03:28.486]    - call: plan(sequential)
[18:03:28.486] plan(): nbrOfWorkers() = 1
> 
> a <- 0
> x %<-% { a <- 1; a }
[18:03:28.488] getGlobalsAndPackages() ...
[18:03:28.488] Searching for globals...
[18:03:28.497] - globals found: [2] '{', '<-'
[18:03:28.498] Searching for globals ... DONE
[18:03:28.498] Resolving globals: FALSE
[18:03:28.499] 
[18:03:28.499] 
[18:03:28.499] getGlobalsAndPackages() ... DONE
[18:03:28.499] run() for 'Future' ...
[18:03:28.500] - state: 'created'
[18:03:28.500] - Future backend: 'FutureStrategy', 'sequential', 'uniprocess', 'future', 'function'
[18:03:28.500] - Future class: 'SequentialFuture', 'UniprocessFuture', 'Future', 'environment'
[18:03:28.500] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ...
[18:03:28.501]   - Field: 'label'
[18:03:28.501]   - Field: 'local'
[18:03:28.501]   - Field: 'owner'
[18:03:28.501]   - Field: 'envir'
[18:03:28.501]   - Field: 'packages'
[18:03:28.502]   - Field: 'gc'
[18:03:28.502]   - Field: 'conditions'
[18:03:28.502]   - Field: 'expr'
[18:03:28.502]   - Field: 'uuid'
[18:03:28.502]   - Field: 'seed'
[18:03:28.502]   - Field: 'version'
[18:03:28.503]   - Field: 'result'
[18:03:28.503]   - Field: 'asynchronous'
[18:03:28.503]   - Field: 'calls'
[18:03:28.503]   - Field: 'globals'
[18:03:28.503]   - Field: 'stdout'
[18:03:28.504]   - Field: 'earlySignal'
[18:03:28.504]   - Field: 'lazy'
[18:03:28.504]   - Field: 'state'
[18:03:28.504] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ... done
[18:03:28.504] - Launch lazy future ...
[18:03:28.505] Packages needed by the future expression (n = 0): <none>
[18:03:28.505] Packages needed by future strategies (n = 0): <none>
[18:03:28.506] {
[18:03:28.506]     {
[18:03:28.506]         {
[18:03:28.506]             ...future.startTime <- base::Sys.time()
[18:03:28.506]             {
[18:03:28.506]                 {
[18:03:28.506]                   {
[18:03:28.506]                     base::local({
[18:03:28.506]                       has_future <- base::requireNamespace("future", 
[18:03:28.506]                         quietly = TRUE)
[18:03:28.506]                       if (has_future) {
[18:03:28.506]                         ns <- base::getNamespace("future")
[18:03:28.506]                         version <- ns[[".package"]][["version"]]
[18:03:28.506]                         if (is.null(version)) 
[18:03:28.506]                           version <- utils::packageVersion("future")
[18:03:28.506]                       }
[18:03:28.506]                       else {
[18:03:28.506]                         version <- NULL
[18:03:28.506]                       }
[18:03:28.506]                       if (!has_future || version < "1.8.0") {
[18:03:28.506]                         info <- base::c(r_version = base::gsub("R version ", 
[18:03:28.506]                           "", base::R.version$version.string), 
[18:03:28.506]                           platform = base::sprintf("%s (%s-bit)", 
[18:03:28.506]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[18:03:28.506]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[18:03:28.506]                             "release", "version")], collapse = " "), 
[18:03:28.506]                           hostname = base::Sys.info()[["nodename"]])
[18:03:28.506]                         info <- base::sprintf("%s: %s", base::names(info), 
[18:03:28.506]                           info)
[18:03:28.506]                         info <- base::paste(info, collapse = "; ")
[18:03:28.506]                         if (!has_future) {
[18:03:28.506]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[18:03:28.506]                             info)
[18:03:28.506]                         }
[18:03:28.506]                         else {
[18:03:28.506]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[18:03:28.506]                             info, version)
[18:03:28.506]                         }
[18:03:28.506]                         base::stop(msg)
[18:03:28.506]                       }
[18:03:28.506]                     })
[18:03:28.506]                   }
[18:03:28.506]                   options(future.plan = NULL)
[18:03:28.506]                   Sys.unsetenv("R_FUTURE_PLAN")
[18:03:28.506]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[18:03:28.506]                 }
[18:03:28.506]                 ...future.workdir <- getwd()
[18:03:28.506]             }
[18:03:28.506]             ...future.oldOptions <- base::as.list(base::.Options)
[18:03:28.506]             ...future.oldEnvVars <- base::Sys.getenv()
[18:03:28.506]         }
[18:03:28.506]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[18:03:28.506]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[18:03:28.506]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[18:03:28.506]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[18:03:28.506]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[18:03:28.506]             future.stdout.windows.reencode = NULL, width = 80L)
[18:03:28.506]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[18:03:28.506]             base::names(...future.oldOptions))
[18:03:28.506]     }
[18:03:28.506]     if (FALSE) {
[18:03:28.506]     }
[18:03:28.506]     else {
[18:03:28.506]         if (TRUE) {
[18:03:28.506]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[18:03:28.506]                 open = "w")
[18:03:28.506]         }
[18:03:28.506]         else {
[18:03:28.506]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[18:03:28.506]                 windows = "NUL", "/dev/null"), open = "w")
[18:03:28.506]         }
[18:03:28.506]         base::sink(...future.stdout, type = "output", split = FALSE)
[18:03:28.506]         base::on.exit(if (!base::is.null(...future.stdout)) {
[18:03:28.506]             base::sink(type = "output", split = FALSE)
[18:03:28.506]             base::close(...future.stdout)
[18:03:28.506]         }, add = TRUE)
[18:03:28.506]     }
[18:03:28.506]     ...future.frame <- base::sys.nframe()
[18:03:28.506]     ...future.conditions <- base::list()
[18:03:28.506]     ...future.rng <- base::globalenv()$.Random.seed
[18:03:28.506]     if (FALSE) {
[18:03:28.506]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[18:03:28.506]             "...future.value", "...future.globalenv.names", ".Random.seed")
[18:03:28.506]     }
[18:03:28.506]     ...future.result <- base::tryCatch({
[18:03:28.506]         base::withCallingHandlers({
[18:03:28.506]             ...future.value <- base::withVisible(base::local({
[18:03:28.506]                 a <- 1
[18:03:28.506]                 a
[18:03:28.506]             }))
[18:03:28.506]             future::FutureResult(value = ...future.value$value, 
[18:03:28.506]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[18:03:28.506]                   ...future.rng), globalenv = if (FALSE) 
[18:03:28.506]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[18:03:28.506]                     ...future.globalenv.names))
[18:03:28.506]                 else NULL, started = ...future.startTime, version = "1.8")
[18:03:28.506]         }, condition = base::local({
[18:03:28.506]             c <- base::c
[18:03:28.506]             inherits <- base::inherits
[18:03:28.506]             invokeRestart <- base::invokeRestart
[18:03:28.506]             length <- base::length
[18:03:28.506]             list <- base::list
[18:03:28.506]             seq.int <- base::seq.int
[18:03:28.506]             signalCondition <- base::signalCondition
[18:03:28.506]             sys.calls <- base::sys.calls
[18:03:28.506]             `[[` <- base::`[[`
[18:03:28.506]             `+` <- base::`+`
[18:03:28.506]             `<<-` <- base::`<<-`
[18:03:28.506]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[18:03:28.506]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[18:03:28.506]                   3L)]
[18:03:28.506]             }
[18:03:28.506]             function(cond) {
[18:03:28.506]                 is_error <- inherits(cond, "error")
[18:03:28.506]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[18:03:28.506]                   NULL)
[18:03:28.506]                 if (is_error) {
[18:03:28.506]                   sessionInformation <- function() {
[18:03:28.506]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[18:03:28.506]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[18:03:28.506]                       search = base::search(), system = base::Sys.info())
[18:03:28.506]                   }
[18:03:28.506]                   ...future.conditions[[length(...future.conditions) + 
[18:03:28.506]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[18:03:28.506]                     cond$call), session = sessionInformation(), 
[18:03:28.506]                     timestamp = base::Sys.time(), signaled = 0L)
[18:03:28.506]                   signalCondition(cond)
[18:03:28.506]                 }
[18:03:28.506]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[18:03:28.506]                 "immediateCondition"))) {
[18:03:28.506]                   signal <- TRUE && inherits(cond, "immediateCondition")
[18:03:28.506]                   ...future.conditions[[length(...future.conditions) + 
[18:03:28.506]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[18:03:28.506]                   if (TRUE && !signal) {
[18:03:28.506]                     muffleCondition <- function (cond, pattern = "^muffle") 
[18:03:28.506]                     {
[18:03:28.506]                       inherits <- base::inherits
[18:03:28.506]                       invokeRestart <- base::invokeRestart
[18:03:28.506]                       is.null <- base::is.null
[18:03:28.506]                       muffled <- FALSE
[18:03:28.506]                       if (inherits(cond, "message")) {
[18:03:28.506]                         muffled <- grepl(pattern, "muffleMessage")
[18:03:28.506]                         if (muffled) 
[18:03:28.506]                           invokeRestart("muffleMessage")
[18:03:28.506]                       }
[18:03:28.506]                       else if (inherits(cond, "warning")) {
[18:03:28.506]                         muffled <- grepl(pattern, "muffleWarning")
[18:03:28.506]                         if (muffled) 
[18:03:28.506]                           invokeRestart("muffleWarning")
[18:03:28.506]                       }
[18:03:28.506]                       else if (inherits(cond, "condition")) {
[18:03:28.506]                         if (!is.null(pattern)) {
[18:03:28.506]                           computeRestarts <- base::computeRestarts
[18:03:28.506]                           grepl <- base::grepl
[18:03:28.506]                           restarts <- computeRestarts(cond)
[18:03:28.506]                           for (restart in restarts) {
[18:03:28.506]                             name <- restart$name
[18:03:28.506]                             if (is.null(name)) 
[18:03:28.506]                               next
[18:03:28.506]                             if (!grepl(pattern, name)) 
[18:03:28.506]                               next
[18:03:28.506]                             invokeRestart(restart)
[18:03:28.506]                             muffled <- TRUE
[18:03:28.506]                             break
[18:03:28.506]                           }
[18:03:28.506]                         }
[18:03:28.506]                       }
[18:03:28.506]                       invisible(muffled)
[18:03:28.506]                     }
[18:03:28.506]                     muffleCondition(cond, pattern = "^muffle")
[18:03:28.506]                   }
[18:03:28.506]                 }
[18:03:28.506]                 else {
[18:03:28.506]                   if (TRUE) {
[18:03:28.506]                     muffleCondition <- function (cond, pattern = "^muffle") 
[18:03:28.506]                     {
[18:03:28.506]                       inherits <- base::inherits
[18:03:28.506]                       invokeRestart <- base::invokeRestart
[18:03:28.506]                       is.null <- base::is.null
[18:03:28.506]                       muffled <- FALSE
[18:03:28.506]                       if (inherits(cond, "message")) {
[18:03:28.506]                         muffled <- grepl(pattern, "muffleMessage")
[18:03:28.506]                         if (muffled) 
[18:03:28.506]                           invokeRestart("muffleMessage")
[18:03:28.506]                       }
[18:03:28.506]                       else if (inherits(cond, "warning")) {
[18:03:28.506]                         muffled <- grepl(pattern, "muffleWarning")
[18:03:28.506]                         if (muffled) 
[18:03:28.506]                           invokeRestart("muffleWarning")
[18:03:28.506]                       }
[18:03:28.506]                       else if (inherits(cond, "condition")) {
[18:03:28.506]                         if (!is.null(pattern)) {
[18:03:28.506]                           computeRestarts <- base::computeRestarts
[18:03:28.506]                           grepl <- base::grepl
[18:03:28.506]                           restarts <- computeRestarts(cond)
[18:03:28.506]                           for (restart in restarts) {
[18:03:28.506]                             name <- restart$name
[18:03:28.506]                             if (is.null(name)) 
[18:03:28.506]                               next
[18:03:28.506]                             if (!grepl(pattern, name)) 
[18:03:28.506]                               next
[18:03:28.506]                             invokeRestart(restart)
[18:03:28.506]                             muffled <- TRUE
[18:03:28.506]                             break
[18:03:28.506]                           }
[18:03:28.506]                         }
[18:03:28.506]                       }
[18:03:28.506]                       invisible(muffled)
[18:03:28.506]                     }
[18:03:28.506]                     muffleCondition(cond, pattern = "^muffle")
[18:03:28.506]                   }
[18:03:28.506]                 }
[18:03:28.506]             }
[18:03:28.506]         }))
[18:03:28.506]     }, error = function(ex) {
[18:03:28.506]         base::structure(base::list(value = NULL, visible = NULL, 
[18:03:28.506]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[18:03:28.506]                 ...future.rng), started = ...future.startTime, 
[18:03:28.506]             finished = Sys.time(), session_uuid = NA_character_, 
[18:03:28.506]             version = "1.8"), class = "FutureResult")
[18:03:28.506]     }, finally = {
[18:03:28.506]         if (!identical(...future.workdir, getwd())) 
[18:03:28.506]             setwd(...future.workdir)
[18:03:28.506]         {
[18:03:28.506]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[18:03:28.506]                 ...future.oldOptions$nwarnings <- NULL
[18:03:28.506]             }
[18:03:28.506]             base::options(...future.oldOptions)
[18:03:28.506]             if (.Platform$OS.type == "windows") {
[18:03:28.506]                 old_names <- names(...future.oldEnvVars)
[18:03:28.506]                 envs <- base::Sys.getenv()
[18:03:28.506]                 names <- names(envs)
[18:03:28.506]                 common <- intersect(names, old_names)
[18:03:28.506]                 added <- setdiff(names, old_names)
[18:03:28.506]                 removed <- setdiff(old_names, names)
[18:03:28.506]                 changed <- common[...future.oldEnvVars[common] != 
[18:03:28.506]                   envs[common]]
[18:03:28.506]                 NAMES <- toupper(changed)
[18:03:28.506]                 args <- list()
[18:03:28.506]                 for (kk in seq_along(NAMES)) {
[18:03:28.506]                   name <- changed[[kk]]
[18:03:28.506]                   NAME <- NAMES[[kk]]
[18:03:28.506]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.506]                     next
[18:03:28.506]                   args[[name]] <- ...future.oldEnvVars[[name]]
[18:03:28.506]                 }
[18:03:28.506]                 NAMES <- toupper(added)
[18:03:28.506]                 for (kk in seq_along(NAMES)) {
[18:03:28.506]                   name <- added[[kk]]
[18:03:28.506]                   NAME <- NAMES[[kk]]
[18:03:28.506]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.506]                     next
[18:03:28.506]                   args[[name]] <- ""
[18:03:28.506]                 }
[18:03:28.506]                 NAMES <- toupper(removed)
[18:03:28.506]                 for (kk in seq_along(NAMES)) {
[18:03:28.506]                   name <- removed[[kk]]
[18:03:28.506]                   NAME <- NAMES[[kk]]
[18:03:28.506]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.506]                     next
[18:03:28.506]                   args[[name]] <- ...future.oldEnvVars[[name]]
[18:03:28.506]                 }
[18:03:28.506]                 if (length(args) > 0) 
[18:03:28.506]                   base::do.call(base::Sys.setenv, args = args)
[18:03:28.506]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[18:03:28.506]             }
[18:03:28.506]             else {
[18:03:28.506]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[18:03:28.506]             }
[18:03:28.506]             {
[18:03:28.506]                 if (base::length(...future.futureOptionsAdded) > 
[18:03:28.506]                   0L) {
[18:03:28.506]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[18:03:28.506]                   base::names(opts) <- ...future.futureOptionsAdded
[18:03:28.506]                   base::options(opts)
[18:03:28.506]                 }
[18:03:28.506]                 {
[18:03:28.506]                   {
[18:03:28.506]                     NULL
[18:03:28.506]                     RNGkind("Mersenne-Twister")
[18:03:28.506]                     base::rm(list = ".Random.seed", envir = base::globalenv(), 
[18:03:28.506]                       inherits = FALSE)
[18:03:28.506]                   }
[18:03:28.506]                   options(future.plan = NULL)
[18:03:28.506]                   if (is.na(NA_character_)) 
[18:03:28.506]                     Sys.unsetenv("R_FUTURE_PLAN")
[18:03:28.506]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[18:03:28.506]                   future::plan(list(function (..., envir = parent.frame()) 
[18:03:28.506]                   {
[18:03:28.506]                     future <- SequentialFuture(..., envir = envir)
[18:03:28.506]                     if (!future$lazy) 
[18:03:28.506]                       future <- run(future)
[18:03:28.506]                     invisible(future)
[18:03:28.506]                   }), .cleanup = FALSE, .init = FALSE)
[18:03:28.506]                 }
[18:03:28.506]             }
[18:03:28.506]         }
[18:03:28.506]     })
[18:03:28.506]     if (TRUE) {
[18:03:28.506]         base::sink(type = "output", split = FALSE)
[18:03:28.506]         if (TRUE) {
[18:03:28.506]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[18:03:28.506]         }
[18:03:28.506]         else {
[18:03:28.506]             ...future.result["stdout"] <- base::list(NULL)
[18:03:28.506]         }
[18:03:28.506]         base::close(...future.stdout)
[18:03:28.506]         ...future.stdout <- NULL
[18:03:28.506]     }
[18:03:28.506]     ...future.result$conditions <- ...future.conditions
[18:03:28.506]     ...future.result$finished <- base::Sys.time()
[18:03:28.506]     ...future.result
[18:03:28.506] }
[18:03:28.510] plan(): Setting new future strategy stack:
[18:03:28.510] List of future strategies:
[18:03:28.510] 1. sequential:
[18:03:28.510]    - args: function (..., envir = parent.frame())
[18:03:28.510]    - tweaked: FALSE
[18:03:28.510]    - call: NULL
[18:03:28.510] plan(): nbrOfWorkers() = 1
[18:03:28.512] plan(): Setting new future strategy stack:
[18:03:28.512] List of future strategies:
[18:03:28.512] 1. sequential:
[18:03:28.512]    - args: function (..., envir = parent.frame())
[18:03:28.512]    - tweaked: FALSE
[18:03:28.512]    - call: plan(sequential)
[18:03:28.513] plan(): nbrOfWorkers() = 1
[18:03:28.513] SequentialFuture started (and completed)
[18:03:28.513] - Launch lazy future ... done
[18:03:28.514] run() for 'SequentialFuture' ... done
> print(x)
[1] 1
> stopifnot(a == 0, x == 1)
> 
> 
> plan(sequential, abc = FALSE)
Warning: Detected 1 unknown future arguments: 'abc'
[18:03:28.515] plan(): Setting new future strategy stack:
[18:03:28.515] List of future strategies:
[18:03:28.515] 1. sequential:
[18:03:28.515]    - args: function (..., abc = FALSE, envir = parent.frame())
[18:03:28.515]    - tweaked: TRUE
[18:03:28.515]    - call: plan(sequential, abc = FALSE)
[18:03:28.515] plan(): nbrOfWorkers() = 1
> 
> a <- 0
> x %<-% { a <- 1; a }
[18:03:28.516] getGlobalsAndPackages() ...
[18:03:28.516] Searching for globals...
[18:03:28.517] - globals found: [2] '{', '<-'
[18:03:28.517] Searching for globals ... DONE
[18:03:28.518] Resolving globals: FALSE
[18:03:28.518] 
[18:03:28.518] 
[18:03:28.518] getGlobalsAndPackages() ... DONE
[18:03:28.519] run() for 'Future' ...
[18:03:28.519] - state: 'created'
[18:03:28.519] - Future backend: 'FutureStrategy', 'tweaked', 'sequential', 'uniprocess', 'future', 'function'
[18:03:28.519] - Future class: 'SequentialFuture', 'UniprocessFuture', 'Future', 'environment'
[18:03:28.520] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ...
[18:03:28.520]   - Field: 'label'
[18:03:28.520]   - Field: 'local'
[18:03:28.520]   - Field: 'owner'
[18:03:28.520]   - Field: 'envir'
[18:03:28.520]   - Field: 'packages'
[18:03:28.521]   - Field: 'gc'
[18:03:28.521]   - Field: 'conditions'
[18:03:28.521]   - Field: 'expr'
[18:03:28.521]   - Field: 'uuid'
[18:03:28.521]   - Field: 'seed'
[18:03:28.522]   - Field: 'version'
[18:03:28.522]   - Field: 'result'
[18:03:28.522]   - Field: 'asynchronous'
[18:03:28.522]   - Field: 'calls'
[18:03:28.522]   - Field: 'abc'
[18:03:28.522]   - Field: 'globals'
[18:03:28.523]   - Field: 'stdout'
[18:03:28.523]   - Field: 'earlySignal'
[18:03:28.523]   - Field: 'lazy'
[18:03:28.523]   - Field: 'state'
[18:03:28.523] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ... done
[18:03:28.524] - Launch lazy future ...
[18:03:28.524] Packages needed by the future expression (n = 0): <none>
[18:03:28.524] Packages needed by future strategies (n = 0): <none>
[18:03:28.525] {
[18:03:28.525]     {
[18:03:28.525]         {
[18:03:28.525]             ...future.startTime <- base::Sys.time()
[18:03:28.525]             {
[18:03:28.525]                 {
[18:03:28.525]                   {
[18:03:28.525]                     base::local({
[18:03:28.525]                       has_future <- base::requireNamespace("future", 
[18:03:28.525]                         quietly = TRUE)
[18:03:28.525]                       if (has_future) {
[18:03:28.525]                         ns <- base::getNamespace("future")
[18:03:28.525]                         version <- ns[[".package"]][["version"]]
[18:03:28.525]                         if (is.null(version)) 
[18:03:28.525]                           version <- utils::packageVersion("future")
[18:03:28.525]                       }
[18:03:28.525]                       else {
[18:03:28.525]                         version <- NULL
[18:03:28.525]                       }
[18:03:28.525]                       if (!has_future || version < "1.8.0") {
[18:03:28.525]                         info <- base::c(r_version = base::gsub("R version ", 
[18:03:28.525]                           "", base::R.version$version.string), 
[18:03:28.525]                           platform = base::sprintf("%s (%s-bit)", 
[18:03:28.525]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[18:03:28.525]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[18:03:28.525]                             "release", "version")], collapse = " "), 
[18:03:28.525]                           hostname = base::Sys.info()[["nodename"]])
[18:03:28.525]                         info <- base::sprintf("%s: %s", base::names(info), 
[18:03:28.525]                           info)
[18:03:28.525]                         info <- base::paste(info, collapse = "; ")
[18:03:28.525]                         if (!has_future) {
[18:03:28.525]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[18:03:28.525]                             info)
[18:03:28.525]                         }
[18:03:28.525]                         else {
[18:03:28.525]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[18:03:28.525]                             info, version)
[18:03:28.525]                         }
[18:03:28.525]                         base::stop(msg)
[18:03:28.525]                       }
[18:03:28.525]                     })
[18:03:28.525]                   }
[18:03:28.525]                   options(future.plan = NULL)
[18:03:28.525]                   Sys.unsetenv("R_FUTURE_PLAN")
[18:03:28.525]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[18:03:28.525]                 }
[18:03:28.525]                 ...future.workdir <- getwd()
[18:03:28.525]             }
[18:03:28.525]             ...future.oldOptions <- base::as.list(base::.Options)
[18:03:28.525]             ...future.oldEnvVars <- base::Sys.getenv()
[18:03:28.525]         }
[18:03:28.525]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[18:03:28.525]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[18:03:28.525]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[18:03:28.525]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[18:03:28.525]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[18:03:28.525]             future.stdout.windows.reencode = NULL, width = 80L)
[18:03:28.525]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[18:03:28.525]             base::names(...future.oldOptions))
[18:03:28.525]     }
[18:03:28.525]     if (FALSE) {
[18:03:28.525]     }
[18:03:28.525]     else {
[18:03:28.525]         if (TRUE) {
[18:03:28.525]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[18:03:28.525]                 open = "w")
[18:03:28.525]         }
[18:03:28.525]         else {
[18:03:28.525]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[18:03:28.525]                 windows = "NUL", "/dev/null"), open = "w")
[18:03:28.525]         }
[18:03:28.525]         base::sink(...future.stdout, type = "output", split = FALSE)
[18:03:28.525]         base::on.exit(if (!base::is.null(...future.stdout)) {
[18:03:28.525]             base::sink(type = "output", split = FALSE)
[18:03:28.525]             base::close(...future.stdout)
[18:03:28.525]         }, add = TRUE)
[18:03:28.525]     }
[18:03:28.525]     ...future.frame <- base::sys.nframe()
[18:03:28.525]     ...future.conditions <- base::list()
[18:03:28.525]     ...future.rng <- base::globalenv()$.Random.seed
[18:03:28.525]     if (FALSE) {
[18:03:28.525]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[18:03:28.525]             "...future.value", "...future.globalenv.names", ".Random.seed")
[18:03:28.525]     }
[18:03:28.525]     ...future.result <- base::tryCatch({
[18:03:28.525]         base::withCallingHandlers({
[18:03:28.525]             ...future.value <- base::withVisible(base::local({
[18:03:28.525]                 a <- 1
[18:03:28.525]                 a
[18:03:28.525]             }))
[18:03:28.525]             future::FutureResult(value = ...future.value$value, 
[18:03:28.525]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[18:03:28.525]                   ...future.rng), globalenv = if (FALSE) 
[18:03:28.525]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[18:03:28.525]                     ...future.globalenv.names))
[18:03:28.525]                 else NULL, started = ...future.startTime, version = "1.8")
[18:03:28.525]         }, condition = base::local({
[18:03:28.525]             c <- base::c
[18:03:28.525]             inherits <- base::inherits
[18:03:28.525]             invokeRestart <- base::invokeRestart
[18:03:28.525]             length <- base::length
[18:03:28.525]             list <- base::list
[18:03:28.525]             seq.int <- base::seq.int
[18:03:28.525]             signalCondition <- base::signalCondition
[18:03:28.525]             sys.calls <- base::sys.calls
[18:03:28.525]             `[[` <- base::`[[`
[18:03:28.525]             `+` <- base::`+`
[18:03:28.525]             `<<-` <- base::`<<-`
[18:03:28.525]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[18:03:28.525]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[18:03:28.525]                   3L)]
[18:03:28.525]             }
[18:03:28.525]             function(cond) {
[18:03:28.525]                 is_error <- inherits(cond, "error")
[18:03:28.525]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[18:03:28.525]                   NULL)
[18:03:28.525]                 if (is_error) {
[18:03:28.525]                   sessionInformation <- function() {
[18:03:28.525]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[18:03:28.525]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[18:03:28.525]                       search = base::search(), system = base::Sys.info())
[18:03:28.525]                   }
[18:03:28.525]                   ...future.conditions[[length(...future.conditions) + 
[18:03:28.525]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[18:03:28.525]                     cond$call), session = sessionInformation(), 
[18:03:28.525]                     timestamp = base::Sys.time(), signaled = 0L)
[18:03:28.525]                   signalCondition(cond)
[18:03:28.525]                 }
[18:03:28.525]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[18:03:28.525]                 "immediateCondition"))) {
[18:03:28.525]                   signal <- TRUE && inherits(cond, "immediateCondition")
[18:03:28.525]                   ...future.conditions[[length(...future.conditions) + 
[18:03:28.525]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[18:03:28.525]                   if (TRUE && !signal) {
[18:03:28.525]                     muffleCondition <- function (cond, pattern = "^muffle") 
[18:03:28.525]                     {
[18:03:28.525]                       inherits <- base::inherits
[18:03:28.525]                       invokeRestart <- base::invokeRestart
[18:03:28.525]                       is.null <- base::is.null
[18:03:28.525]                       muffled <- FALSE
[18:03:28.525]                       if (inherits(cond, "message")) {
[18:03:28.525]                         muffled <- grepl(pattern, "muffleMessage")
[18:03:28.525]                         if (muffled) 
[18:03:28.525]                           invokeRestart("muffleMessage")
[18:03:28.525]                       }
[18:03:28.525]                       else if (inherits(cond, "warning")) {
[18:03:28.525]                         muffled <- grepl(pattern, "muffleWarning")
[18:03:28.525]                         if (muffled) 
[18:03:28.525]                           invokeRestart("muffleWarning")
[18:03:28.525]                       }
[18:03:28.525]                       else if (inherits(cond, "condition")) {
[18:03:28.525]                         if (!is.null(pattern)) {
[18:03:28.525]                           computeRestarts <- base::computeRestarts
[18:03:28.525]                           grepl <- base::grepl
[18:03:28.525]                           restarts <- computeRestarts(cond)
[18:03:28.525]                           for (restart in restarts) {
[18:03:28.525]                             name <- restart$name
[18:03:28.525]                             if (is.null(name)) 
[18:03:28.525]                               next
[18:03:28.525]                             if (!grepl(pattern, name)) 
[18:03:28.525]                               next
[18:03:28.525]                             invokeRestart(restart)
[18:03:28.525]                             muffled <- TRUE
[18:03:28.525]                             break
[18:03:28.525]                           }
[18:03:28.525]                         }
[18:03:28.525]                       }
[18:03:28.525]                       invisible(muffled)
[18:03:28.525]                     }
[18:03:28.525]                     muffleCondition(cond, pattern = "^muffle")
[18:03:28.525]                   }
[18:03:28.525]                 }
[18:03:28.525]                 else {
[18:03:28.525]                   if (TRUE) {
[18:03:28.525]                     muffleCondition <- function (cond, pattern = "^muffle") 
[18:03:28.525]                     {
[18:03:28.525]                       inherits <- base::inherits
[18:03:28.525]                       invokeRestart <- base::invokeRestart
[18:03:28.525]                       is.null <- base::is.null
[18:03:28.525]                       muffled <- FALSE
[18:03:28.525]                       if (inherits(cond, "message")) {
[18:03:28.525]                         muffled <- grepl(pattern, "muffleMessage")
[18:03:28.525]                         if (muffled) 
[18:03:28.525]                           invokeRestart("muffleMessage")
[18:03:28.525]                       }
[18:03:28.525]                       else if (inherits(cond, "warning")) {
[18:03:28.525]                         muffled <- grepl(pattern, "muffleWarning")
[18:03:28.525]                         if (muffled) 
[18:03:28.525]                           invokeRestart("muffleWarning")
[18:03:28.525]                       }
[18:03:28.525]                       else if (inherits(cond, "condition")) {
[18:03:28.525]                         if (!is.null(pattern)) {
[18:03:28.525]                           computeRestarts <- base::computeRestarts
[18:03:28.525]                           grepl <- base::grepl
[18:03:28.525]                           restarts <- computeRestarts(cond)
[18:03:28.525]                           for (restart in restarts) {
[18:03:28.525]                             name <- restart$name
[18:03:28.525]                             if (is.null(name)) 
[18:03:28.525]                               next
[18:03:28.525]                             if (!grepl(pattern, name)) 
[18:03:28.525]                               next
[18:03:28.525]                             invokeRestart(restart)
[18:03:28.525]                             muffled <- TRUE
[18:03:28.525]                             break
[18:03:28.525]                           }
[18:03:28.525]                         }
[18:03:28.525]                       }
[18:03:28.525]                       invisible(muffled)
[18:03:28.525]                     }
[18:03:28.525]                     muffleCondition(cond, pattern = "^muffle")
[18:03:28.525]                   }
[18:03:28.525]                 }
[18:03:28.525]             }
[18:03:28.525]         }))
[18:03:28.525]     }, error = function(ex) {
[18:03:28.525]         base::structure(base::list(value = NULL, visible = NULL, 
[18:03:28.525]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[18:03:28.525]                 ...future.rng), started = ...future.startTime, 
[18:03:28.525]             finished = Sys.time(), session_uuid = NA_character_, 
[18:03:28.525]             version = "1.8"), class = "FutureResult")
[18:03:28.525]     }, finally = {
[18:03:28.525]         if (!identical(...future.workdir, getwd())) 
[18:03:28.525]             setwd(...future.workdir)
[18:03:28.525]         {
[18:03:28.525]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[18:03:28.525]                 ...future.oldOptions$nwarnings <- NULL
[18:03:28.525]             }
[18:03:28.525]             base::options(...future.oldOptions)
[18:03:28.525]             if (.Platform$OS.type == "windows") {
[18:03:28.525]                 old_names <- names(...future.oldEnvVars)
[18:03:28.525]                 envs <- base::Sys.getenv()
[18:03:28.525]                 names <- names(envs)
[18:03:28.525]                 common <- intersect(names, old_names)
[18:03:28.525]                 added <- setdiff(names, old_names)
[18:03:28.525]                 removed <- setdiff(old_names, names)
[18:03:28.525]                 changed <- common[...future.oldEnvVars[common] != 
[18:03:28.525]                   envs[common]]
[18:03:28.525]                 NAMES <- toupper(changed)
[18:03:28.525]                 args <- list()
[18:03:28.525]                 for (kk in seq_along(NAMES)) {
[18:03:28.525]                   name <- changed[[kk]]
[18:03:28.525]                   NAME <- NAMES[[kk]]
[18:03:28.525]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.525]                     next
[18:03:28.525]                   args[[name]] <- ...future.oldEnvVars[[name]]
[18:03:28.525]                 }
[18:03:28.525]                 NAMES <- toupper(added)
[18:03:28.525]                 for (kk in seq_along(NAMES)) {
[18:03:28.525]                   name <- added[[kk]]
[18:03:28.525]                   NAME <- NAMES[[kk]]
[18:03:28.525]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.525]                     next
[18:03:28.525]                   args[[name]] <- ""
[18:03:28.525]                 }
[18:03:28.525]                 NAMES <- toupper(removed)
[18:03:28.525]                 for (kk in seq_along(NAMES)) {
[18:03:28.525]                   name <- removed[[kk]]
[18:03:28.525]                   NAME <- NAMES[[kk]]
[18:03:28.525]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.525]                     next
[18:03:28.525]                   args[[name]] <- ...future.oldEnvVars[[name]]
[18:03:28.525]                 }
[18:03:28.525]                 if (length(args) > 0) 
[18:03:28.525]                   base::do.call(base::Sys.setenv, args = args)
[18:03:28.525]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[18:03:28.525]             }
[18:03:28.525]             else {
[18:03:28.525]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[18:03:28.525]             }
[18:03:28.525]             {
[18:03:28.525]                 if (base::length(...future.futureOptionsAdded) > 
[18:03:28.525]                   0L) {
[18:03:28.525]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[18:03:28.525]                   base::names(opts) <- ...future.futureOptionsAdded
[18:03:28.525]                   base::options(opts)
[18:03:28.525]                 }
[18:03:28.525]                 {
[18:03:28.525]                   {
[18:03:28.525]                     NULL
[18:03:28.525]                     RNGkind("Mersenne-Twister")
[18:03:28.525]                     base::rm(list = ".Random.seed", envir = base::globalenv(), 
[18:03:28.525]                       inherits = FALSE)
[18:03:28.525]                   }
[18:03:28.525]                   options(future.plan = NULL)
[18:03:28.525]                   if (is.na(NA_character_)) 
[18:03:28.525]                     Sys.unsetenv("R_FUTURE_PLAN")
[18:03:28.525]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[18:03:28.525]                   future::plan(list(function (..., abc = FALSE, 
[18:03:28.525]                     envir = parent.frame()) 
[18:03:28.525]                   strategy(..., abc = abc, envir = envir)), .cleanup = FALSE, 
[18:03:28.525]                     .init = FALSE)
[18:03:28.525]                 }
[18:03:28.525]             }
[18:03:28.525]         }
[18:03:28.525]     })
[18:03:28.525]     if (TRUE) {
[18:03:28.525]         base::sink(type = "output", split = FALSE)
[18:03:28.525]         if (TRUE) {
[18:03:28.525]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[18:03:28.525]         }
[18:03:28.525]         else {
[18:03:28.525]             ...future.result["stdout"] <- base::list(NULL)
[18:03:28.525]         }
[18:03:28.525]         base::close(...future.stdout)
[18:03:28.525]         ...future.stdout <- NULL
[18:03:28.525]     }
[18:03:28.525]     ...future.result$conditions <- ...future.conditions
[18:03:28.525]     ...future.result$finished <- base::Sys.time()
[18:03:28.525]     ...future.result
[18:03:28.525] }
[18:03:28.529] plan(): Setting new future strategy stack:
[18:03:28.529] List of future strategies:
[18:03:28.529] 1. sequential:
[18:03:28.529]    - args: function (..., envir = parent.frame())
[18:03:28.529]    - tweaked: FALSE
[18:03:28.529]    - call: NULL
[18:03:28.529] plan(): nbrOfWorkers() = 1
[18:03:28.530] plan(): Setting new future strategy stack:
[18:03:28.531] List of future strategies:
[18:03:28.531] 1. sequential:
[18:03:28.531]    - args: function (..., abc = FALSE, envir = parent.frame())
[18:03:28.531]    - tweaked: TRUE
[18:03:28.531]    - call: plan(sequential, abc = FALSE)
[18:03:28.531] plan(): nbrOfWorkers() = 1
[18:03:28.531] SequentialFuture started (and completed)
[18:03:28.532] - Launch lazy future ... done
[18:03:28.532] run() for 'SequentialFuture' ... done
> print(x)
[1] 1
> stopifnot(a == 0, x == 1)
> 
> x %<-% { a <- 2; a } %tweak% list(abc = TRUE)
[18:03:28.533] plan(): Setting new future strategy stack:
[18:03:28.533] List of future strategies:
[18:03:28.533] 1. sequential:
[18:03:28.533]    - args: function (..., abc = TRUE, envir = parent.frame())
[18:03:28.533]    - tweaked: TRUE
[18:03:28.533]    - call: plan(sequential, abc = FALSE)
[18:03:28.533] plan(): nbrOfWorkers() = 1
[18:03:28.534] getGlobalsAndPackages() ...
[18:03:28.534] Searching for globals...
[18:03:28.535] - globals found: [2] '{', '<-'
[18:03:28.535] Searching for globals ... DONE
[18:03:28.535] Resolving globals: FALSE
[18:03:28.536] 
[18:03:28.536] 
[18:03:28.536] getGlobalsAndPackages() ... DONE
[18:03:28.536] run() for 'Future' ...
[18:03:28.537] - state: 'created'
[18:03:28.537] - Future backend: 'FutureStrategy', 'tweaked', 'tweaked', 'sequential', 'uniprocess', 'future', 'function'
[18:03:28.537] - Future class: 'SequentialFuture', 'UniprocessFuture', 'Future', 'environment'
[18:03:28.537] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ...
[18:03:28.538]   - Field: 'label'
[18:03:28.538]   - Field: 'local'
[18:03:28.538]   - Field: 'owner'
[18:03:28.538]   - Field: 'envir'
[18:03:28.538]   - Field: 'packages'
[18:03:28.539]   - Field: 'gc'
[18:03:28.539]   - Field: 'conditions'
[18:03:28.539]   - Field: 'expr'
[18:03:28.539]   - Field: 'uuid'
[18:03:28.539]   - Field: 'seed'
[18:03:28.539]   - Field: 'version'
[18:03:28.540]   - Field: 'result'
[18:03:28.540]   - Field: 'asynchronous'
[18:03:28.540]   - Field: 'calls'
[18:03:28.540]   - Field: 'abc'
[18:03:28.540]   - Field: 'globals'
[18:03:28.541]   - Field: 'stdout'
[18:03:28.541]   - Field: 'earlySignal'
[18:03:28.541]   - Field: 'lazy'
[18:03:28.541]   - Field: 'state'
[18:03:28.541] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ... done
[18:03:28.541] - Launch lazy future ...
[18:03:28.542] Packages needed by the future expression (n = 0): <none>
[18:03:28.542] Packages needed by future strategies (n = 0): <none>
[18:03:28.543] {
[18:03:28.543]     {
[18:03:28.543]         {
[18:03:28.543]             ...future.startTime <- base::Sys.time()
[18:03:28.543]             {
[18:03:28.543]                 {
[18:03:28.543]                   {
[18:03:28.543]                     base::local({
[18:03:28.543]                       has_future <- base::requireNamespace("future", 
[18:03:28.543]                         quietly = TRUE)
[18:03:28.543]                       if (has_future) {
[18:03:28.543]                         ns <- base::getNamespace("future")
[18:03:28.543]                         version <- ns[[".package"]][["version"]]
[18:03:28.543]                         if (is.null(version)) 
[18:03:28.543]                           version <- utils::packageVersion("future")
[18:03:28.543]                       }
[18:03:28.543]                       else {
[18:03:28.543]                         version <- NULL
[18:03:28.543]                       }
[18:03:28.543]                       if (!has_future || version < "1.8.0") {
[18:03:28.543]                         info <- base::c(r_version = base::gsub("R version ", 
[18:03:28.543]                           "", base::R.version$version.string), 
[18:03:28.543]                           platform = base::sprintf("%s (%s-bit)", 
[18:03:28.543]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[18:03:28.543]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[18:03:28.543]                             "release", "version")], collapse = " "), 
[18:03:28.543]                           hostname = base::Sys.info()[["nodename"]])
[18:03:28.543]                         info <- base::sprintf("%s: %s", base::names(info), 
[18:03:28.543]                           info)
[18:03:28.543]                         info <- base::paste(info, collapse = "; ")
[18:03:28.543]                         if (!has_future) {
[18:03:28.543]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[18:03:28.543]                             info)
[18:03:28.543]                         }
[18:03:28.543]                         else {
[18:03:28.543]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[18:03:28.543]                             info, version)
[18:03:28.543]                         }
[18:03:28.543]                         base::stop(msg)
[18:03:28.543]                       }
[18:03:28.543]                     })
[18:03:28.543]                   }
[18:03:28.543]                   options(future.plan = NULL)
[18:03:28.543]                   Sys.unsetenv("R_FUTURE_PLAN")
[18:03:28.543]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[18:03:28.543]                 }
[18:03:28.543]                 ...future.workdir <- getwd()
[18:03:28.543]             }
[18:03:28.543]             ...future.oldOptions <- base::as.list(base::.Options)
[18:03:28.543]             ...future.oldEnvVars <- base::Sys.getenv()
[18:03:28.543]         }
[18:03:28.543]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[18:03:28.543]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[18:03:28.543]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[18:03:28.543]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[18:03:28.543]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[18:03:28.543]             future.stdout.windows.reencode = NULL, width = 80L)
[18:03:28.543]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[18:03:28.543]             base::names(...future.oldOptions))
[18:03:28.543]     }
[18:03:28.543]     if (FALSE) {
[18:03:28.543]     }
[18:03:28.543]     else {
[18:03:28.543]         if (TRUE) {
[18:03:28.543]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[18:03:28.543]                 open = "w")
[18:03:28.543]         }
[18:03:28.543]         else {
[18:03:28.543]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[18:03:28.543]                 windows = "NUL", "/dev/null"), open = "w")
[18:03:28.543]         }
[18:03:28.543]         base::sink(...future.stdout, type = "output", split = FALSE)
[18:03:28.543]         base::on.exit(if (!base::is.null(...future.stdout)) {
[18:03:28.543]             base::sink(type = "output", split = FALSE)
[18:03:28.543]             base::close(...future.stdout)
[18:03:28.543]         }, add = TRUE)
[18:03:28.543]     }
[18:03:28.543]     ...future.frame <- base::sys.nframe()
[18:03:28.543]     ...future.conditions <- base::list()
[18:03:28.543]     ...future.rng <- base::globalenv()$.Random.seed
[18:03:28.543]     if (FALSE) {
[18:03:28.543]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[18:03:28.543]             "...future.value", "...future.globalenv.names", ".Random.seed")
[18:03:28.543]     }
[18:03:28.543]     ...future.result <- base::tryCatch({
[18:03:28.543]         base::withCallingHandlers({
[18:03:28.543]             ...future.value <- base::withVisible(base::local({
[18:03:28.543]                 a <- 2
[18:03:28.543]                 a
[18:03:28.543]             }))
[18:03:28.543]             future::FutureResult(value = ...future.value$value, 
[18:03:28.543]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[18:03:28.543]                   ...future.rng), globalenv = if (FALSE) 
[18:03:28.543]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[18:03:28.543]                     ...future.globalenv.names))
[18:03:28.543]                 else NULL, started = ...future.startTime, version = "1.8")
[18:03:28.543]         }, condition = base::local({
[18:03:28.543]             c <- base::c
[18:03:28.543]             inherits <- base::inherits
[18:03:28.543]             invokeRestart <- base::invokeRestart
[18:03:28.543]             length <- base::length
[18:03:28.543]             list <- base::list
[18:03:28.543]             seq.int <- base::seq.int
[18:03:28.543]             signalCondition <- base::signalCondition
[18:03:28.543]             sys.calls <- base::sys.calls
[18:03:28.543]             `[[` <- base::`[[`
[18:03:28.543]             `+` <- base::`+`
[18:03:28.543]             `<<-` <- base::`<<-`
[18:03:28.543]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[18:03:28.543]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[18:03:28.543]                   3L)]
[18:03:28.543]             }
[18:03:28.543]             function(cond) {
[18:03:28.543]                 is_error <- inherits(cond, "error")
[18:03:28.543]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[18:03:28.543]                   NULL)
[18:03:28.543]                 if (is_error) {
[18:03:28.543]                   sessionInformation <- function() {
[18:03:28.543]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[18:03:28.543]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[18:03:28.543]                       search = base::search(), system = base::Sys.info())
[18:03:28.543]                   }
[18:03:28.543]                   ...future.conditions[[length(...future.conditions) + 
[18:03:28.543]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[18:03:28.543]                     cond$call), session = sessionInformation(), 
[18:03:28.543]                     timestamp = base::Sys.time(), signaled = 0L)
[18:03:28.543]                   signalCondition(cond)
[18:03:28.543]                 }
[18:03:28.543]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[18:03:28.543]                 "immediateCondition"))) {
[18:03:28.543]                   signal <- TRUE && inherits(cond, "immediateCondition")
[18:03:28.543]                   ...future.conditions[[length(...future.conditions) + 
[18:03:28.543]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[18:03:28.543]                   if (TRUE && !signal) {
[18:03:28.543]                     muffleCondition <- function (cond, pattern = "^muffle") 
[18:03:28.543]                     {
[18:03:28.543]                       inherits <- base::inherits
[18:03:28.543]                       invokeRestart <- base::invokeRestart
[18:03:28.543]                       is.null <- base::is.null
[18:03:28.543]                       muffled <- FALSE
[18:03:28.543]                       if (inherits(cond, "message")) {
[18:03:28.543]                         muffled <- grepl(pattern, "muffleMessage")
[18:03:28.543]                         if (muffled) 
[18:03:28.543]                           invokeRestart("muffleMessage")
[18:03:28.543]                       }
[18:03:28.543]                       else if (inherits(cond, "warning")) {
[18:03:28.543]                         muffled <- grepl(pattern, "muffleWarning")
[18:03:28.543]                         if (muffled) 
[18:03:28.543]                           invokeRestart("muffleWarning")
[18:03:28.543]                       }
[18:03:28.543]                       else if (inherits(cond, "condition")) {
[18:03:28.543]                         if (!is.null(pattern)) {
[18:03:28.543]                           computeRestarts <- base::computeRestarts
[18:03:28.543]                           grepl <- base::grepl
[18:03:28.543]                           restarts <- computeRestarts(cond)
[18:03:28.543]                           for (restart in restarts) {
[18:03:28.543]                             name <- restart$name
[18:03:28.543]                             if (is.null(name)) 
[18:03:28.543]                               next
[18:03:28.543]                             if (!grepl(pattern, name)) 
[18:03:28.543]                               next
[18:03:28.543]                             invokeRestart(restart)
[18:03:28.543]                             muffled <- TRUE
[18:03:28.543]                             break
[18:03:28.543]                           }
[18:03:28.543]                         }
[18:03:28.543]                       }
[18:03:28.543]                       invisible(muffled)
[18:03:28.543]                     }
[18:03:28.543]                     muffleCondition(cond, pattern = "^muffle")
[18:03:28.543]                   }
[18:03:28.543]                 }
[18:03:28.543]                 else {
[18:03:28.543]                   if (TRUE) {
[18:03:28.543]                     muffleCondition <- function (cond, pattern = "^muffle") 
[18:03:28.543]                     {
[18:03:28.543]                       inherits <- base::inherits
[18:03:28.543]                       invokeRestart <- base::invokeRestart
[18:03:28.543]                       is.null <- base::is.null
[18:03:28.543]                       muffled <- FALSE
[18:03:28.543]                       if (inherits(cond, "message")) {
[18:03:28.543]                         muffled <- grepl(pattern, "muffleMessage")
[18:03:28.543]                         if (muffled) 
[18:03:28.543]                           invokeRestart("muffleMessage")
[18:03:28.543]                       }
[18:03:28.543]                       else if (inherits(cond, "warning")) {
[18:03:28.543]                         muffled <- grepl(pattern, "muffleWarning")
[18:03:28.543]                         if (muffled) 
[18:03:28.543]                           invokeRestart("muffleWarning")
[18:03:28.543]                       }
[18:03:28.543]                       else if (inherits(cond, "condition")) {
[18:03:28.543]                         if (!is.null(pattern)) {
[18:03:28.543]                           computeRestarts <- base::computeRestarts
[18:03:28.543]                           grepl <- base::grepl
[18:03:28.543]                           restarts <- computeRestarts(cond)
[18:03:28.543]                           for (restart in restarts) {
[18:03:28.543]                             name <- restart$name
[18:03:28.543]                             if (is.null(name)) 
[18:03:28.543]                               next
[18:03:28.543]                             if (!grepl(pattern, name)) 
[18:03:28.543]                               next
[18:03:28.543]                             invokeRestart(restart)
[18:03:28.543]                             muffled <- TRUE
[18:03:28.543]                             break
[18:03:28.543]                           }
[18:03:28.543]                         }
[18:03:28.543]                       }
[18:03:28.543]                       invisible(muffled)
[18:03:28.543]                     }
[18:03:28.543]                     muffleCondition(cond, pattern = "^muffle")
[18:03:28.543]                   }
[18:03:28.543]                 }
[18:03:28.543]             }
[18:03:28.543]         }))
[18:03:28.543]     }, error = function(ex) {
[18:03:28.543]         base::structure(base::list(value = NULL, visible = NULL, 
[18:03:28.543]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[18:03:28.543]                 ...future.rng), started = ...future.startTime, 
[18:03:28.543]             finished = Sys.time(), session_uuid = NA_character_, 
[18:03:28.543]             version = "1.8"), class = "FutureResult")
[18:03:28.543]     }, finally = {
[18:03:28.543]         if (!identical(...future.workdir, getwd())) 
[18:03:28.543]             setwd(...future.workdir)
[18:03:28.543]         {
[18:03:28.543]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[18:03:28.543]                 ...future.oldOptions$nwarnings <- NULL
[18:03:28.543]             }
[18:03:28.543]             base::options(...future.oldOptions)
[18:03:28.543]             if (.Platform$OS.type == "windows") {
[18:03:28.543]                 old_names <- names(...future.oldEnvVars)
[18:03:28.543]                 envs <- base::Sys.getenv()
[18:03:28.543]                 names <- names(envs)
[18:03:28.543]                 common <- intersect(names, old_names)
[18:03:28.543]                 added <- setdiff(names, old_names)
[18:03:28.543]                 removed <- setdiff(old_names, names)
[18:03:28.543]                 changed <- common[...future.oldEnvVars[common] != 
[18:03:28.543]                   envs[common]]
[18:03:28.543]                 NAMES <- toupper(changed)
[18:03:28.543]                 args <- list()
[18:03:28.543]                 for (kk in seq_along(NAMES)) {
[18:03:28.543]                   name <- changed[[kk]]
[18:03:28.543]                   NAME <- NAMES[[kk]]
[18:03:28.543]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.543]                     next
[18:03:28.543]                   args[[name]] <- ...future.oldEnvVars[[name]]
[18:03:28.543]                 }
[18:03:28.543]                 NAMES <- toupper(added)
[18:03:28.543]                 for (kk in seq_along(NAMES)) {
[18:03:28.543]                   name <- added[[kk]]
[18:03:28.543]                   NAME <- NAMES[[kk]]
[18:03:28.543]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.543]                     next
[18:03:28.543]                   args[[name]] <- ""
[18:03:28.543]                 }
[18:03:28.543]                 NAMES <- toupper(removed)
[18:03:28.543]                 for (kk in seq_along(NAMES)) {
[18:03:28.543]                   name <- removed[[kk]]
[18:03:28.543]                   NAME <- NAMES[[kk]]
[18:03:28.543]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.543]                     next
[18:03:28.543]                   args[[name]] <- ...future.oldEnvVars[[name]]
[18:03:28.543]                 }
[18:03:28.543]                 if (length(args) > 0) 
[18:03:28.543]                   base::do.call(base::Sys.setenv, args = args)
[18:03:28.543]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[18:03:28.543]             }
[18:03:28.543]             else {
[18:03:28.543]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[18:03:28.543]             }
[18:03:28.543]             {
[18:03:28.543]                 if (base::length(...future.futureOptionsAdded) > 
[18:03:28.543]                   0L) {
[18:03:28.543]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[18:03:28.543]                   base::names(opts) <- ...future.futureOptionsAdded
[18:03:28.543]                   base::options(opts)
[18:03:28.543]                 }
[18:03:28.543]                 {
[18:03:28.543]                   {
[18:03:28.543]                     NULL
[18:03:28.543]                     RNGkind("Mersenne-Twister")
[18:03:28.543]                     base::rm(list = ".Random.seed", envir = base::globalenv(), 
[18:03:28.543]                       inherits = FALSE)
[18:03:28.543]                   }
[18:03:28.543]                   options(future.plan = NULL)
[18:03:28.543]                   if (is.na(NA_character_)) 
[18:03:28.543]                     Sys.unsetenv("R_FUTURE_PLAN")
[18:03:28.543]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[18:03:28.543]                   future::plan(list(function (..., abc = TRUE, 
[18:03:28.543]                     envir = parent.frame()) 
[18:03:28.543]                   strategy(..., abc = abc, envir = envir)), .cleanup = FALSE, 
[18:03:28.543]                     .init = FALSE)
[18:03:28.543]                 }
[18:03:28.543]             }
[18:03:28.543]         }
[18:03:28.543]     })
[18:03:28.543]     if (TRUE) {
[18:03:28.543]         base::sink(type = "output", split = FALSE)
[18:03:28.543]         if (TRUE) {
[18:03:28.543]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[18:03:28.543]         }
[18:03:28.543]         else {
[18:03:28.543]             ...future.result["stdout"] <- base::list(NULL)
[18:03:28.543]         }
[18:03:28.543]         base::close(...future.stdout)
[18:03:28.543]         ...future.stdout <- NULL
[18:03:28.543]     }
[18:03:28.543]     ...future.result$conditions <- ...future.conditions
[18:03:28.543]     ...future.result$finished <- base::Sys.time()
[18:03:28.543]     ...future.result
[18:03:28.543] }
[18:03:28.547] plan(): Setting new future strategy stack:
[18:03:28.547] List of future strategies:
[18:03:28.547] 1. sequential:
[18:03:28.547]    - args: function (..., envir = parent.frame())
[18:03:28.547]    - tweaked: FALSE
[18:03:28.547]    - call: NULL
[18:03:28.547] plan(): nbrOfWorkers() = 1
[18:03:28.548] plan(): Setting new future strategy stack:
[18:03:28.549] List of future strategies:
[18:03:28.549] 1. sequential:
[18:03:28.549]    - args: function (..., abc = TRUE, envir = parent.frame())
[18:03:28.549]    - tweaked: TRUE
[18:03:28.549]    - call: plan(sequential, abc = FALSE)
[18:03:28.549] plan(): nbrOfWorkers() = 1
[18:03:28.549] SequentialFuture started (and completed)
[18:03:28.550] - Launch lazy future ... done
[18:03:28.550] run() for 'SequentialFuture' ... done
[18:03:28.550] plan(): Setting new future strategy stack:
[18:03:28.550] List of future strategies:
[18:03:28.550] 1. sequential:
[18:03:28.550]    - args: function (..., abc = FALSE, envir = parent.frame())
[18:03:28.550]    - tweaked: TRUE
[18:03:28.550]    - call: plan(sequential, abc = FALSE)
[18:03:28.551] 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'
[18:03:28.551] plan(): Setting new future strategy stack:
[18:03:28.552] List of future strategies:
[18:03:28.552] 1. sequential:
[18:03:28.552]    - args: function (..., envir = parent.frame())
[18:03:28.552]    - tweaked: FALSE
[18:03:28.552]    - call: plan(list(A = sequential, B = tweak(sequential, abc = FALSE)))
[18:03:28.552] 2. sequential:
[18:03:28.552]    - args: function (..., abc = FALSE, envir = parent.frame())
[18:03:28.552]    - tweaked: TRUE
[18:03:28.552]    - call: plan(list(A = sequential, B = tweak(sequential, abc = FALSE)))
[18:03:28.552] plan(): nbrOfWorkers() = 1
> a <- 0
> 
> x %<-% {
+   stopifnot(identical(names(plan("list")), "B"))
+   a <- 1
+   a
+ }
[18:03:28.553] getGlobalsAndPackages() ...
[18:03:28.553] Searching for globals...
[18:03:28.557] - globals found: [6] '{', 'stopifnot', 'identical', 'names', 'plan', '<-'
[18:03:28.558] Searching for globals ... DONE
[18:03:28.558] Resolving globals: FALSE
[18:03:28.559] The total size of the 1 globals is 403.23 KiB (412912 bytes)
[18:03:28.560] 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')
[18:03:28.560] - globals: [1] 'plan'
[18:03:28.560] 
[18:03:28.560] getGlobalsAndPackages() ... DONE
[18:03:28.561] run() for 'Future' ...
[18:03:28.561] - state: 'created'
[18:03:28.561] - Future backend: 'FutureStrategy', 'sequential', 'uniprocess', 'future', 'function'
[18:03:28.561] - Future class: 'SequentialFuture', 'UniprocessFuture', 'Future', 'environment'
[18:03:28.562] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ...
[18:03:28.562]   - Field: 'label'
[18:03:28.562]   - Field: 'local'
[18:03:28.562]   - Field: 'owner'
[18:03:28.562]   - Field: 'envir'
[18:03:28.563]   - Field: 'packages'
[18:03:28.563]   - Field: 'gc'
[18:03:28.563]   - Field: 'conditions'
[18:03:28.563]   - Field: 'expr'
[18:03:28.563]   - Field: 'uuid'
[18:03:28.564]   - Field: 'seed'
[18:03:28.564]   - Field: 'version'
[18:03:28.564]   - Field: 'result'
[18:03:28.564]   - Field: 'asynchronous'
[18:03:28.564]   - Field: 'calls'
[18:03:28.564]   - Field: 'globals'
[18:03:28.565]   - Field: 'stdout'
[18:03:28.565]   - Field: 'earlySignal'
[18:03:28.565]   - Field: 'lazy'
[18:03:28.565]   - Field: 'state'
[18:03:28.565] - Copy elements of temporary 'SequentialFuture' to final 'Future' object ... done
[18:03:28.566] - Launch lazy future ...
[18:03:28.566] Packages needed by the future expression (n = 0): <none>
[18:03:28.566] Packages needed by future strategies (n = 0): 
[18:03:28.567] {
[18:03:28.567]     {
[18:03:28.567]         {
[18:03:28.567]             ...future.startTime <- base::Sys.time()
[18:03:28.567]             {
[18:03:28.567]                 {
[18:03:28.567]                   {
[18:03:28.567]                     base::local({
[18:03:28.567]                       has_future <- base::requireNamespace("future", 
[18:03:28.567]                         quietly = TRUE)
[18:03:28.567]                       if (has_future) {
[18:03:28.567]                         ns <- base::getNamespace("future")
[18:03:28.567]                         version <- ns[[".package"]][["version"]]
[18:03:28.567]                         if (is.null(version)) 
[18:03:28.567]                           version <- utils::packageVersion("future")
[18:03:28.567]                       }
[18:03:28.567]                       else {
[18:03:28.567]                         version <- NULL
[18:03:28.567]                       }
[18:03:28.567]                       if (!has_future || version < "1.8.0") {
[18:03:28.567]                         info <- base::c(r_version = base::gsub("R version ", 
[18:03:28.567]                           "", base::R.version$version.string), 
[18:03:28.567]                           platform = base::sprintf("%s (%s-bit)", 
[18:03:28.567]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[18:03:28.567]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[18:03:28.567]                             "release", "version")], collapse = " "), 
[18:03:28.567]                           hostname = base::Sys.info()[["nodename"]])
[18:03:28.567]                         info <- base::sprintf("%s: %s", base::names(info), 
[18:03:28.567]                           info)
[18:03:28.567]                         info <- base::paste(info, collapse = "; ")
[18:03:28.567]                         if (!has_future) {
[18:03:28.567]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[18:03:28.567]                             info)
[18:03:28.567]                         }
[18:03:28.567]                         else {
[18:03:28.567]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[18:03:28.567]                             info, version)
[18:03:28.567]                         }
[18:03:28.567]                         base::stop(msg)
[18:03:28.567]                       }
[18:03:28.567]                     })
[18:03:28.567]                   }
[18:03:28.567]                   options(future.plan = NULL)
[18:03:28.567]                   Sys.unsetenv("R_FUTURE_PLAN")
[18:03:28.567]                   future::plan(list(B = function (..., abc = FALSE, 
[18:03:28.567]                     envir = parent.frame()) 
[18:03:28.567]                   strategy(..., abc = abc, envir = envir)), .cleanup = FALSE, 
[18:03:28.567]                     .init = FALSE)
[18:03:28.567]                 }
[18:03:28.567]                 ...future.workdir <- getwd()
[18:03:28.567]             }
[18:03:28.567]             ...future.oldOptions <- base::as.list(base::.Options)
[18:03:28.567]             ...future.oldEnvVars <- base::Sys.getenv()
[18:03:28.567]         }
[18:03:28.567]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[18:03:28.567]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[18:03:28.567]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[18:03:28.567]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[18:03:28.567]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[18:03:28.567]             future.stdout.windows.reencode = NULL, width = 80L)
[18:03:28.567]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[18:03:28.567]             base::names(...future.oldOptions))
[18:03:28.567]     }
[18:03:28.567]     if (FALSE) {
[18:03:28.567]     }
[18:03:28.567]     else {
[18:03:28.567]         if (TRUE) {
[18:03:28.567]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[18:03:28.567]                 open = "w")
[18:03:28.567]         }
[18:03:28.567]         else {
[18:03:28.567]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[18:03:28.567]                 windows = "NUL", "/dev/null"), open = "w")
[18:03:28.567]         }
[18:03:28.567]         base::sink(...future.stdout, type = "output", split = FALSE)
[18:03:28.567]         base::on.exit(if (!base::is.null(...future.stdout)) {
[18:03:28.567]             base::sink(type = "output", split = FALSE)
[18:03:28.567]             base::close(...future.stdout)
[18:03:28.567]         }, add = TRUE)
[18:03:28.567]     }
[18:03:28.567]     ...future.frame <- base::sys.nframe()
[18:03:28.567]     ...future.conditions <- base::list()
[18:03:28.567]     ...future.rng <- base::globalenv()$.Random.seed
[18:03:28.567]     if (FALSE) {
[18:03:28.567]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[18:03:28.567]             "...future.value", "...future.globalenv.names", ".Random.seed")
[18:03:28.567]     }
[18:03:28.567]     ...future.result <- base::tryCatch({
[18:03:28.567]         base::withCallingHandlers({
[18:03:28.567]             ...future.value <- base::withVisible(base::local({
[18:03:28.567]                 stopifnot(identical(names(plan("list")), "B"))
[18:03:28.567]                 a <- 1
[18:03:28.567]                 a
[18:03:28.567]             }))
[18:03:28.567]             future::FutureResult(value = ...future.value$value, 
[18:03:28.567]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[18:03:28.567]                   ...future.rng), globalenv = if (FALSE) 
[18:03:28.567]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[18:03:28.567]                     ...future.globalenv.names))
[18:03:28.567]                 else NULL, started = ...future.startTime, version = "1.8")
[18:03:28.567]         }, condition = base::local({
[18:03:28.567]             c <- base::c
[18:03:28.567]             inherits <- base::inherits
[18:03:28.567]             invokeRestart <- base::invokeRestart
[18:03:28.567]             length <- base::length
[18:03:28.567]             list <- base::list
[18:03:28.567]             seq.int <- base::seq.int
[18:03:28.567]             signalCondition <- base::signalCondition
[18:03:28.567]             sys.calls <- base::sys.calls
[18:03:28.567]             `[[` <- base::`[[`
[18:03:28.567]             `+` <- base::`+`
[18:03:28.567]             `<<-` <- base::`<<-`
[18:03:28.567]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[18:03:28.567]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[18:03:28.567]                   3L)]
[18:03:28.567]             }
[18:03:28.567]             function(cond) {
[18:03:28.567]                 is_error <- inherits(cond, "error")
[18:03:28.567]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[18:03:28.567]                   NULL)
[18:03:28.567]                 if (is_error) {
[18:03:28.567]                   sessionInformation <- function() {
[18:03:28.567]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[18:03:28.567]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[18:03:28.567]                       search = base::search(), system = base::Sys.info())
[18:03:28.567]                   }
[18:03:28.567]                   ...future.conditions[[length(...future.conditions) + 
[18:03:28.567]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[18:03:28.567]                     cond$call), session = sessionInformation(), 
[18:03:28.567]                     timestamp = base::Sys.time(), signaled = 0L)
[18:03:28.567]                   signalCondition(cond)
[18:03:28.567]                 }
[18:03:28.567]                 else if (!ignore && TRUE && inherits(cond, c("condition", 
[18:03:28.567]                 "immediateCondition"))) {
[18:03:28.567]                   signal <- TRUE && inherits(cond, "immediateCondition")
[18:03:28.567]                   ...future.conditions[[length(...future.conditions) + 
[18:03:28.567]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[18:03:28.567]                   if (TRUE && !signal) {
[18:03:28.567]                     muffleCondition <- function (cond, pattern = "^muffle") 
[18:03:28.567]                     {
[18:03:28.567]                       inherits <- base::inherits
[18:03:28.567]                       invokeRestart <- base::invokeRestart
[18:03:28.567]                       is.null <- base::is.null
[18:03:28.567]                       muffled <- FALSE
[18:03:28.567]                       if (inherits(cond, "message")) {
[18:03:28.567]                         muffled <- grepl(pattern, "muffleMessage")
[18:03:28.567]                         if (muffled) 
[18:03:28.567]                           invokeRestart("muffleMessage")
[18:03:28.567]                       }
[18:03:28.567]                       else if (inherits(cond, "warning")) {
[18:03:28.567]                         muffled <- grepl(pattern, "muffleWarning")
[18:03:28.567]                         if (muffled) 
[18:03:28.567]                           invokeRestart("muffleWarning")
[18:03:28.567]                       }
[18:03:28.567]                       else if (inherits(cond, "condition")) {
[18:03:28.567]                         if (!is.null(pattern)) {
[18:03:28.567]                           computeRestarts <- base::computeRestarts
[18:03:28.567]                           grepl <- base::grepl
[18:03:28.567]                           restarts <- computeRestarts(cond)
[18:03:28.567]                           for (restart in restarts) {
[18:03:28.567]                             name <- restart$name
[18:03:28.567]                             if (is.null(name)) 
[18:03:28.567]                               next
[18:03:28.567]                             if (!grepl(pattern, name)) 
[18:03:28.567]                               next
[18:03:28.567]                             invokeRestart(restart)
[18:03:28.567]                             muffled <- TRUE
[18:03:28.567]                             break
[18:03:28.567]                           }
[18:03:28.567]                         }
[18:03:28.567]                       }
[18:03:28.567]                       invisible(muffled)
[18:03:28.567]                     }
[18:03:28.567]                     muffleCondition(cond, pattern = "^muffle")
[18:03:28.567]                   }
[18:03:28.567]                 }
[18:03:28.567]                 else {
[18:03:28.567]                   if (TRUE) {
[18:03:28.567]                     muffleCondition <- function (cond, pattern = "^muffle") 
[18:03:28.567]                     {
[18:03:28.567]                       inherits <- base::inherits
[18:03:28.567]                       invokeRestart <- base::invokeRestart
[18:03:28.567]                       is.null <- base::is.null
[18:03:28.567]                       muffled <- FALSE
[18:03:28.567]                       if (inherits(cond, "message")) {
[18:03:28.567]                         muffled <- grepl(pattern, "muffleMessage")
[18:03:28.567]                         if (muffled) 
[18:03:28.567]                           invokeRestart("muffleMessage")
[18:03:28.567]                       }
[18:03:28.567]                       else if (inherits(cond, "warning")) {
[18:03:28.567]                         muffled <- grepl(pattern, "muffleWarning")
[18:03:28.567]                         if (muffled) 
[18:03:28.567]                           invokeRestart("muffleWarning")
[18:03:28.567]                       }
[18:03:28.567]                       else if (inherits(cond, "condition")) {
[18:03:28.567]                         if (!is.null(pattern)) {
[18:03:28.567]                           computeRestarts <- base::computeRestarts
[18:03:28.567]                           grepl <- base::grepl
[18:03:28.567]                           restarts <- computeRestarts(cond)
[18:03:28.567]                           for (restart in restarts) {
[18:03:28.567]                             name <- restart$name
[18:03:28.567]                             if (is.null(name)) 
[18:03:28.567]                               next
[18:03:28.567]                             if (!grepl(pattern, name)) 
[18:03:28.567]                               next
[18:03:28.567]                             invokeRestart(restart)
[18:03:28.567]                             muffled <- TRUE
[18:03:28.567]                             break
[18:03:28.567]                           }
[18:03:28.567]                         }
[18:03:28.567]                       }
[18:03:28.567]                       invisible(muffled)
[18:03:28.567]                     }
[18:03:28.567]                     muffleCondition(cond, pattern = "^muffle")
[18:03:28.567]                   }
[18:03:28.567]                 }
[18:03:28.567]             }
[18:03:28.567]         }))
[18:03:28.567]     }, error = function(ex) {
[18:03:28.567]         base::structure(base::list(value = NULL, visible = NULL, 
[18:03:28.567]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[18:03:28.567]                 ...future.rng), started = ...future.startTime, 
[18:03:28.567]             finished = Sys.time(), session_uuid = NA_character_, 
[18:03:28.567]             version = "1.8"), class = "FutureResult")
[18:03:28.567]     }, finally = {
[18:03:28.567]         if (!identical(...future.workdir, getwd())) 
[18:03:28.567]             setwd(...future.workdir)
[18:03:28.567]         {
[18:03:28.567]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[18:03:28.567]                 ...future.oldOptions$nwarnings <- NULL
[18:03:28.567]             }
[18:03:28.567]             base::options(...future.oldOptions)
[18:03:28.567]             if (.Platform$OS.type == "windows") {
[18:03:28.567]                 old_names <- names(...future.oldEnvVars)
[18:03:28.567]                 envs <- base::Sys.getenv()
[18:03:28.567]                 names <- names(envs)
[18:03:28.567]                 common <- intersect(names, old_names)
[18:03:28.567]                 added <- setdiff(names, old_names)
[18:03:28.567]                 removed <- setdiff(old_names, names)
[18:03:28.567]                 changed <- common[...future.oldEnvVars[common] != 
[18:03:28.567]                   envs[common]]
[18:03:28.567]                 NAMES <- toupper(changed)
[18:03:28.567]                 args <- list()
[18:03:28.567]                 for (kk in seq_along(NAMES)) {
[18:03:28.567]                   name <- changed[[kk]]
[18:03:28.567]                   NAME <- NAMES[[kk]]
[18:03:28.567]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.567]                     next
[18:03:28.567]                   args[[name]] <- ...future.oldEnvVars[[name]]
[18:03:28.567]                 }
[18:03:28.567]                 NAMES <- toupper(added)
[18:03:28.567]                 for (kk in seq_along(NAMES)) {
[18:03:28.567]                   name <- added[[kk]]
[18:03:28.567]                   NAME <- NAMES[[kk]]
[18:03:28.567]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.567]                     next
[18:03:28.567]                   args[[name]] <- ""
[18:03:28.567]                 }
[18:03:28.567]                 NAMES <- toupper(removed)
[18:03:28.567]                 for (kk in seq_along(NAMES)) {
[18:03:28.567]                   name <- removed[[kk]]
[18:03:28.567]                   NAME <- NAMES[[kk]]
[18:03:28.567]                   if (name != NAME && is.element(NAME, old_names)) 
[18:03:28.567]                     next
[18:03:28.567]                   args[[name]] <- ...future.oldEnvVars[[name]]
[18:03:28.567]                 }
[18:03:28.567]                 if (length(args) > 0) 
[18:03:28.567]                   base::do.call(base::Sys.setenv, args = args)
[18:03:28.567]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[18:03:28.567]             }
[18:03:28.567]             else {
[18:03:28.567]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[18:03:28.567]             }
[18:03:28.567]             {
[18:03:28.567]                 if (base::length(...future.futureOptionsAdded) > 
[18:03:28.567]                   0L) {
[18:03:28.567]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[18:03:28.567]                   base::names(opts) <- ...future.futureOptionsAdded
[18:03:28.567]                   base::options(opts)
[18:03:28.567]                 }
[18:03:28.567]                 {
[18:03:28.567]                   {
[18:03:28.567]                     NULL
[18:03:28.567]                     RNGkind("Mersenne-Twister")
[18:03:28.567]                     base::rm(list = ".Random.seed", envir = base::globalenv(), 
[18:03:28.567]                       inherits = FALSE)
[18:03:28.567]                   }
[18:03:28.567]                   options(future.plan = NULL)
[18:03:28.567]                   if (is.na(NA_character_)) 
[18:03:28.567]                     Sys.unsetenv("R_FUTURE_PLAN")
[18:03:28.567]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[18:03:28.567]                   future::plan(list(A = function (..., envir = parent.frame()) 
[18:03:28.567]                   {
[18:03:28.567]                     future <- SequentialFuture(..., envir = envir)
[18:03:28.567]                     if (!future$lazy) 
[18:03:28.567]                       future <- run(future)
[18:03:28.567]                     invisible(future)
[18:03:28.567]                   }, B = function (..., abc = FALSE, envir = parent.frame()) 
[18:03:28.567]                   strategy(..., abc = abc, envir = envir)), .cleanup = FALSE, 
[18:03:28.567]                     .init = FALSE)
[18:03:28.567]                 }
[18:03:28.567]             }
[18:03:28.567]         }
[18:03:28.567]     })
[18:03:28.567]     if (TRUE) {
[18:03:28.567]         base::sink(type = "output", split = FALSE)
[18:03:28.567]         if (TRUE) {
[18:03:28.567]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[18:03:28.567]         }
[18:03:28.567]         else {
[18:03:28.567]             ...future.result["stdout"] <- base::list(NULL)
[18:03:28.567]         }
[18:03:28.567]         base::close(...future.stdout)
[18:03:28.567]         ...future.stdout <- NULL
[18:03:28.567]     }
[18:03:28.567]     ...future.result$conditions <- ...future.conditions
[18:03:28.567]     ...future.result$finished <- base::Sys.time()
[18:03:28.567]     ...future.result
[18:03:28.567] }
[18:03:28.571] assign_globals() ...
[18:03:28.571] List of 1
[18:03:28.571]  $ plan:function (strategy = NULL, ..., substitute = TRUE, .skip = FALSE, .call = TRUE, 
[18:03:28.571]     .cleanup = TRUE, .init = TRUE)  
[18:03:28.571]  - attr(*, "where")=List of 1
[18:03:28.571]   ..$ plan:<environment: R_EmptyEnv> 
[18:03:28.571]  - attr(*, "class")= chr [1:3] "FutureGlobals" "Globals" "list"
[18:03:28.571]  - attr(*, "resolved")= logi FALSE
[18:03:28.571]  - attr(*, "total_size")= num 412912
[18:03:28.571]  - attr(*, "already-done")= logi TRUE
[18:03:28.574] - copied 'plan' to environment
[18:03:28.574] assign_globals() ... done
[18:03:28.575] plan(): Setting new future strategy stack:
[18:03:28.575] List of future strategies:
[18:03:28.575] 1. sequential:
[18:03:28.575]    - args: function (..., abc = FALSE, envir = parent.frame())
[18:03:28.575]    - tweaked: TRUE
[18:03:28.575]    - call: plan(list(A = sequential, B = tweak(sequential, abc = FALSE)))
[18:03:28.575] plan(): nbrOfWorkers() = 1
[18:03:28.577] plan(): Setting new future strategy stack:
[18:03:28.577] List of future strategies:
[18:03:28.577] 1. sequential:
[18:03:28.577]    - args: function (..., envir = parent.frame())
[18:03:28.577]    - tweaked: FALSE
[18:03:28.577]    - call: plan(list(A = sequential, B = tweak(sequential, abc = FALSE)))
[18:03:28.577] 2. sequential:
[18:03:28.577]    - args: function (..., abc = FALSE, envir = parent.frame())
[18:03:28.577]    - tweaked: TRUE
[18:03:28.577]    - call: plan(list(A = sequential, B = tweak(sequential, abc = FALSE)))
[18:03:28.577] plan(): nbrOfWorkers() = 1
[18:03:28.578] SequentialFuture started (and completed)
[18:03:28.578] - Launch lazy future ... done
[18:03:28.578] 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)
[18:03:28.580] getGlobalsAndPackages() ...
[18:03:28.580] Searching for globals...
[18:03:28.583] - globals found: [4] '{', 'y', 'x', '~'
[18:03:28.583] Searching for globals ... DONE
[18:03:28.583] Resolving globals: FALSE
[18:03:28.584] The total size of the 1 globals is 56 bytes (56 bytes)
[18:03:28.584] 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')
[18:03:28.584] - globals: [1] 'x'
[18:03:28.585] 
[18:03:28.585] 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")
[18:03:28.632] plan(): Setting new future strategy stack:
[18:03:28.632] List of future strategies:
[18:03:28.632] 1. FutureStrategy:
[18:03:28.632]    - args: function (..., envir = parent.frame())
[18:03:28.632]    - tweaked: FALSE
[18:03:28.632]    - call: future::plan(oplan)
[18:03:28.633] plan(): nbrOfWorkers() = 1
Failed to undo environment variables:
 - Expected environment variables: [n=201] '!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', 'OMP_THREAD_LIMIT', 'OS', 'PATH', 'PATHEXT', 'PROCESSOR_ARCHITECTURE', 'PROCESSOR_IDENTIFIER', 'PROCESSOR_LEVEL', 'PROCESSOR_REVISION', 'PROGRAMFILES', 'PROMPT', 'PSModulePath', 'PUBLIC', 'PWD', 'ProgramData', 'ProgramFiles(x86)', 'ProgramW6432', 'RETICULATE_AUTOCONFIGURE', '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_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_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_', '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 
   0.50    0.10    1.35