R Under development (unstable) (2024-05-14 r86553 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> source("incl/start.R")
Loading required package: future
[10:55:39.618] plan(): Setting new future strategy stack:
[10:55:39.619] List of future strategies:
[10:55:39.619] 1. mirai_multisession:
[10:55:39.619]    - args: function (expr, substitute = TRUE, envir = parent.frame(), ..., workers = availableCores())
[10:55:39.619]    - tweaked: FALSE
[10:55:39.619]    - call: future::plan(future.mirai::mirai_multisession)
[10:55:39.633] plan(): plan_init() of 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function' ...
[10:55:39.633] < mirai | $data >
[10:55:39.639] getGlobalsAndPackages() ...
[10:55:39.639] Not searching for globals
[10:55:39.639] - globals: [0] <none>
[10:55:39.640] getGlobalsAndPackages() ... DONE
[10:55:39.640] getGlobalsAndPackages() ...
[10:55:39.640] 
[10:55:39.641] - globals: [0] <none>
[10:55:39.641] getGlobalsAndPackages() ... DONE
[10:55:39.972] Packages needed by the future expression (n = 0): <none>
[10:55:39.972] Packages needed by future strategies (n = 0): <none>
[10:55:39.973] {
[10:55:39.973]     {
[10:55:39.973]         {
[10:55:39.973]             ...future.startTime <- base::Sys.time()
[10:55:39.973]             {
[10:55:39.973]                 {
[10:55:39.973]                   {
[10:55:39.973]                     base::local({
[10:55:39.973]                       has_future <- base::requireNamespace("future", 
[10:55:39.973]                         quietly = TRUE)
[10:55:39.973]                       if (has_future) {
[10:55:39.973]                         ns <- base::getNamespace("future")
[10:55:39.973]                         version <- ns[[".package"]][["version"]]
[10:55:39.973]                         if (is.null(version)) 
[10:55:39.973]                           version <- utils::packageVersion("future")
[10:55:39.973]                       }
[10:55:39.973]                       else {
[10:55:39.973]                         version <- NULL
[10:55:39.973]                       }
[10:55:39.973]                       if (!has_future || version < "1.8.0") {
[10:55:39.973]                         info <- base::c(r_version = base::gsub("R version ", 
[10:55:39.973]                           "", base::R.version$version.string), 
[10:55:39.973]                           platform = base::sprintf("%s (%s-bit)", 
[10:55:39.973]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[10:55:39.973]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[10:55:39.973]                             "release", "version")], collapse = " "), 
[10:55:39.973]                           hostname = base::Sys.info()[["nodename"]])
[10:55:39.973]                         info <- base::sprintf("%s: %s", base::names(info), 
[10:55:39.973]                           info)
[10:55:39.973]                         info <- base::paste(info, collapse = "; ")
[10:55:39.973]                         if (!has_future) {
[10:55:39.973]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[10:55:39.973]                             info)
[10:55:39.973]                         }
[10:55:39.973]                         else {
[10:55:39.973]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[10:55:39.973]                             info, version)
[10:55:39.973]                         }
[10:55:39.973]                         base::stop(msg)
[10:55:39.973]                       }
[10:55:39.973]                     })
[10:55:39.973]                   }
[10:55:39.973]                   ...future.strategy.old <- future::plan("list")
[10:55:39.973]                   options(future.plan = NULL)
[10:55:39.973]                   Sys.unsetenv("R_FUTURE_PLAN")
[10:55:39.973]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[10:55:39.973]                 }
[10:55:39.973]                 ...future.workdir <- getwd()
[10:55:39.973]             }
[10:55:39.973]             ...future.oldOptions <- base::as.list(base::.Options)
[10:55:39.973]             ...future.oldEnvVars <- base::Sys.getenv()
[10:55:39.973]         }
[10:55:39.973]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[10:55:39.973]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[10:55:39.973]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[10:55:39.973]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[10:55:39.973]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[10:55:39.973]             future.stdout.windows.reencode = NULL, width = 80L)
[10:55:39.973]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[10:55:39.973]             base::names(...future.oldOptions))
[10:55:39.973]     }
[10:55:39.973]     if (FALSE) {
[10:55:39.973]     }
[10:55:39.973]     else {
[10:55:39.973]         if (TRUE) {
[10:55:39.973]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[10:55:39.973]                 open = "w")
[10:55:39.973]         }
[10:55:39.973]         else {
[10:55:39.973]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[10:55:39.973]                 windows = "NUL", "/dev/null"), open = "w")
[10:55:39.973]         }
[10:55:39.973]         base::sink(...future.stdout, type = "output", split = FALSE)
[10:55:39.973]         base::on.exit(if (!base::is.null(...future.stdout)) {
[10:55:39.973]             base::sink(type = "output", split = FALSE)
[10:55:39.973]             base::close(...future.stdout)
[10:55:39.973]         }, add = TRUE)
[10:55:39.973]     }
[10:55:39.973]     ...future.frame <- base::sys.nframe()
[10:55:39.973]     ...future.conditions <- base::list()
[10:55:39.973]     ...future.rng <- base::globalenv()$.Random.seed
[10:55:39.973]     if (FALSE) {
[10:55:39.973]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[10:55:39.973]             "...future.value", "...future.globalenv.names", ".Random.seed")
[10:55:39.973]     }
[10:55:39.973]     ...future.result <- base::tryCatch({
[10:55:39.973]         base::withCallingHandlers({
[10:55:39.973]             ...future.value <- base::withVisible(base::local(NA))
[10:55:39.973]             future::FutureResult(value = ...future.value$value, 
[10:55:39.973]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[10:55:39.973]                   ...future.rng), globalenv = if (FALSE) 
[10:55:39.973]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[10:55:39.973]                     ...future.globalenv.names))
[10:55:39.973]                 else NULL, started = ...future.startTime, version = "1.8")
[10:55:39.973]         }, condition = base::local({
[10:55:39.973]             c <- base::c
[10:55:39.973]             inherits <- base::inherits
[10:55:39.973]             invokeRestart <- base::invokeRestart
[10:55:39.973]             length <- base::length
[10:55:39.973]             list <- base::list
[10:55:39.973]             seq.int <- base::seq.int
[10:55:39.973]             signalCondition <- base::signalCondition
[10:55:39.973]             sys.calls <- base::sys.calls
[10:55:39.973]             `[[` <- base::`[[`
[10:55:39.973]             `+` <- base::`+`
[10:55:39.973]             `<<-` <- base::`<<-`
[10:55:39.973]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[10:55:39.973]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[10:55:39.973]                   3L)]
[10:55:39.973]             }
[10:55:39.973]             function(cond) {
[10:55:39.973]                 is_error <- inherits(cond, "error")
[10:55:39.973]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[10:55:39.973]                   NULL)
[10:55:39.973]                 if (is_error) {
[10:55:39.973]                   sessionInformation <- function() {
[10:55:39.973]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[10:55:39.973]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[10:55:39.973]                       search = base::search(), system = base::Sys.info())
[10:55:39.973]                   }
[10:55:39.973]                   ...future.conditions[[length(...future.conditions) + 
[10:55:39.973]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[10:55:39.973]                     cond$call), session = sessionInformation(), 
[10:55:39.973]                     timestamp = base::Sys.time(), signaled = 0L)
[10:55:39.973]                   signalCondition(cond)
[10:55:39.973]                 }
[10:55:39.973]                 else if (!ignore && TRUE && inherits(cond, "condition")) {
[10:55:39.973]                   signal <- FALSE && inherits(cond, character(0))
[10:55:39.973]                   ...future.conditions[[length(...future.conditions) + 
[10:55:39.973]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[10:55:39.973]                   if (FALSE && !signal) {
[10:55:39.973]                     muffleCondition <- function (cond, pattern = "^muffle") 
[10:55:39.973]                     {
[10:55:39.973]                       inherits <- base::inherits
[10:55:39.973]                       invokeRestart <- base::invokeRestart
[10:55:39.973]                       is.null <- base::is.null
[10:55:39.973]                       muffled <- FALSE
[10:55:39.973]                       if (inherits(cond, "message")) {
[10:55:39.973]                         muffled <- grepl(pattern, "muffleMessage")
[10:55:39.973]                         if (muffled) 
[10:55:39.973]                           invokeRestart("muffleMessage")
[10:55:39.973]                       }
[10:55:39.973]                       else if (inherits(cond, "warning")) {
[10:55:39.973]                         muffled <- grepl(pattern, "muffleWarning")
[10:55:39.973]                         if (muffled) 
[10:55:39.973]                           invokeRestart("muffleWarning")
[10:55:39.973]                       }
[10:55:39.973]                       else if (inherits(cond, "condition")) {
[10:55:39.973]                         if (!is.null(pattern)) {
[10:55:39.973]                           computeRestarts <- base::computeRestarts
[10:55:39.973]                           grepl <- base::grepl
[10:55:39.973]                           restarts <- computeRestarts(cond)
[10:55:39.973]                           for (restart in restarts) {
[10:55:39.973]                             name <- restart$name
[10:55:39.973]                             if (is.null(name)) 
[10:55:39.973]                               next
[10:55:39.973]                             if (!grepl(pattern, name)) 
[10:55:39.973]                               next
[10:55:39.973]                             invokeRestart(restart)
[10:55:39.973]                             muffled <- TRUE
[10:55:39.973]                             break
[10:55:39.973]                           }
[10:55:39.973]                         }
[10:55:39.973]                       }
[10:55:39.973]                       invisible(muffled)
[10:55:39.973]                     }
[10:55:39.973]                     muffleCondition(cond, pattern = "^muffle")
[10:55:39.973]                   }
[10:55:39.973]                 }
[10:55:39.973]                 else {
[10:55:39.973]                   if (TRUE) {
[10:55:39.973]                     muffleCondition <- function (cond, pattern = "^muffle") 
[10:55:39.973]                     {
[10:55:39.973]                       inherits <- base::inherits
[10:55:39.973]                       invokeRestart <- base::invokeRestart
[10:55:39.973]                       is.null <- base::is.null
[10:55:39.973]                       muffled <- FALSE
[10:55:39.973]                       if (inherits(cond, "message")) {
[10:55:39.973]                         muffled <- grepl(pattern, "muffleMessage")
[10:55:39.973]                         if (muffled) 
[10:55:39.973]                           invokeRestart("muffleMessage")
[10:55:39.973]                       }
[10:55:39.973]                       else if (inherits(cond, "warning")) {
[10:55:39.973]                         muffled <- grepl(pattern, "muffleWarning")
[10:55:39.973]                         if (muffled) 
[10:55:39.973]                           invokeRestart("muffleWarning")
[10:55:39.973]                       }
[10:55:39.973]                       else if (inherits(cond, "condition")) {
[10:55:39.973]                         if (!is.null(pattern)) {
[10:55:39.973]                           computeRestarts <- base::computeRestarts
[10:55:39.973]                           grepl <- base::grepl
[10:55:39.973]                           restarts <- computeRestarts(cond)
[10:55:39.973]                           for (restart in restarts) {
[10:55:39.973]                             name <- restart$name
[10:55:39.973]                             if (is.null(name)) 
[10:55:39.973]                               next
[10:55:39.973]                             if (!grepl(pattern, name)) 
[10:55:39.973]                               next
[10:55:39.973]                             invokeRestart(restart)
[10:55:39.973]                             muffled <- TRUE
[10:55:39.973]                             break
[10:55:39.973]                           }
[10:55:39.973]                         }
[10:55:39.973]                       }
[10:55:39.973]                       invisible(muffled)
[10:55:39.973]                     }
[10:55:39.973]                     muffleCondition(cond, pattern = "^muffle")
[10:55:39.973]                   }
[10:55:39.973]                 }
[10:55:39.973]             }
[10:55:39.973]         }))
[10:55:39.973]     }, error = function(ex) {
[10:55:39.973]         base::structure(base::list(value = NULL, visible = NULL, 
[10:55:39.973]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[10:55:39.973]                 ...future.rng), started = ...future.startTime, 
[10:55:39.973]             finished = Sys.time(), session_uuid = NA_character_, 
[10:55:39.973]             version = "1.8"), class = "FutureResult")
[10:55:39.973]     }, finally = {
[10:55:39.973]         if (!identical(...future.workdir, getwd())) 
[10:55:39.973]             setwd(...future.workdir)
[10:55:39.973]         {
[10:55:39.973]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[10:55:39.973]                 ...future.oldOptions$nwarnings <- NULL
[10:55:39.973]             }
[10:55:39.973]             base::options(...future.oldOptions)
[10:55:39.973]             if (.Platform$OS.type == "windows") {
[10:55:39.973]                 old_names <- names(...future.oldEnvVars)
[10:55:39.973]                 envs <- base::Sys.getenv()
[10:55:39.973]                 names <- names(envs)
[10:55:39.973]                 common <- intersect(names, old_names)
[10:55:39.973]                 added <- setdiff(names, old_names)
[10:55:39.973]                 removed <- setdiff(old_names, names)
[10:55:39.973]                 changed <- common[...future.oldEnvVars[common] != 
[10:55:39.973]                   envs[common]]
[10:55:39.973]                 NAMES <- toupper(changed)
[10:55:39.973]                 args <- list()
[10:55:39.973]                 for (kk in seq_along(NAMES)) {
[10:55:39.973]                   name <- changed[[kk]]
[10:55:39.973]                   NAME <- NAMES[[kk]]
[10:55:39.973]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:39.973]                     next
[10:55:39.973]                   args[[name]] <- ...future.oldEnvVars[[name]]
[10:55:39.973]                 }
[10:55:39.973]                 NAMES <- toupper(added)
[10:55:39.973]                 for (kk in seq_along(NAMES)) {
[10:55:39.973]                   name <- added[[kk]]
[10:55:39.973]                   NAME <- NAMES[[kk]]
[10:55:39.973]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:39.973]                     next
[10:55:39.973]                   args[[name]] <- ""
[10:55:39.973]                 }
[10:55:39.973]                 NAMES <- toupper(removed)
[10:55:39.973]                 for (kk in seq_along(NAMES)) {
[10:55:39.973]                   name <- removed[[kk]]
[10:55:39.973]                   NAME <- NAMES[[kk]]
[10:55:39.973]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:39.973]                     next
[10:55:39.973]                   args[[name]] <- ...future.oldEnvVars[[name]]
[10:55:39.973]                 }
[10:55:39.973]                 if (length(args) > 0) 
[10:55:39.973]                   base::do.call(base::Sys.setenv, args = args)
[10:55:39.973]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[10:55:39.973]             }
[10:55:39.973]             else {
[10:55:39.973]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[10:55:39.973]             }
[10:55:39.973]             {
[10:55:39.973]                 if (base::length(...future.futureOptionsAdded) > 
[10:55:39.973]                   0L) {
[10:55:39.973]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[10:55:39.973]                   base::names(opts) <- ...future.futureOptionsAdded
[10:55:39.973]                   base::options(opts)
[10:55:39.973]                 }
[10:55:39.973]                 {
[10:55:39.973]                   NULL
[10:55:39.973]                   options(future.plan = NULL)
[10:55:39.973]                   if (is.na(NA_character_)) 
[10:55:39.973]                     Sys.unsetenv("R_FUTURE_PLAN")
[10:55:39.973]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[10:55:39.973]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[10:55:39.973]                     .init = FALSE)
[10:55:39.973]                 }
[10:55:39.973]             }
[10:55:39.973]         }
[10:55:39.973]     })
[10:55:39.973]     if (TRUE) {
[10:55:39.973]         base::sink(type = "output", split = FALSE)
[10:55:39.973]         if (TRUE) {
[10:55:39.973]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[10:55:39.973]         }
[10:55:39.973]         else {
[10:55:39.973]             ...future.result["stdout"] <- base::list(NULL)
[10:55:39.973]         }
[10:55:39.973]         base::close(...future.stdout)
[10:55:39.973]         ...future.stdout <- NULL
[10:55:39.973]     }
[10:55:39.973]     ...future.result$conditions <- ...future.conditions
[10:55:39.973]     ...future.result$finished <- base::Sys.time()
[10:55:39.973]     ...future.result
[10:55:39.973] }
[10:55:40.109] plan(): plan_init() of 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function' ... DONE
[10:55:40.109] plan(): nbrOfWorkers() = 2
> 
> options(future.demo.mandelbrot.nrow = 2L)
> options(future.demo.mandelbrot.resolution = 50L)
> options(future.demo.mandelbrot.delay = FALSE)
> 
> message("*** Demos ...")
*** Demos ...
> 
> message("*** Mandelbrot demo of the 'future' package ...")
*** Mandelbrot demo of the 'future' package ...
> 
> plan(mirai_multisession, workers = 2)
[10:55:40.111] plan(): Setting new future strategy stack:
[10:55:40.111] List of future strategies:
[10:55:40.111] 1. mirai_multisession:
[10:55:40.111]    - args: function (..., workers = 2, envir = parent.frame())
[10:55:40.111]    - tweaked: TRUE
[10:55:40.111]    - call: plan(mirai_multisession, workers = 2)
[10:55:40.124] plan(): plan_init() of 'tweaked', 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function' ...
[10:55:40.125] < mirai | $data >
[10:55:40.125] getGlobalsAndPackages() ...
[10:55:40.125] Not searching for globals
[10:55:40.125] - globals: [0] <none>
[10:55:40.126] getGlobalsAndPackages() ... DONE
[10:55:40.126] getGlobalsAndPackages() ...
[10:55:40.126] 
[10:55:40.126] - globals: [0] <none>
[10:55:40.126] getGlobalsAndPackages() ... DONE
[10:55:40.127] Packages needed by the future expression (n = 0): <none>
[10:55:40.127] Packages needed by future strategies (n = 0): <none>
[10:55:40.127] {
[10:55:40.127]     {
[10:55:40.127]         {
[10:55:40.127]             ...future.startTime <- base::Sys.time()
[10:55:40.127]             {
[10:55:40.127]                 {
[10:55:40.127]                   {
[10:55:40.127]                     base::local({
[10:55:40.127]                       has_future <- base::requireNamespace("future", 
[10:55:40.127]                         quietly = TRUE)
[10:55:40.127]                       if (has_future) {
[10:55:40.127]                         ns <- base::getNamespace("future")
[10:55:40.127]                         version <- ns[[".package"]][["version"]]
[10:55:40.127]                         if (is.null(version)) 
[10:55:40.127]                           version <- utils::packageVersion("future")
[10:55:40.127]                       }
[10:55:40.127]                       else {
[10:55:40.127]                         version <- NULL
[10:55:40.127]                       }
[10:55:40.127]                       if (!has_future || version < "1.8.0") {
[10:55:40.127]                         info <- base::c(r_version = base::gsub("R version ", 
[10:55:40.127]                           "", base::R.version$version.string), 
[10:55:40.127]                           platform = base::sprintf("%s (%s-bit)", 
[10:55:40.127]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[10:55:40.127]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[10:55:40.127]                             "release", "version")], collapse = " "), 
[10:55:40.127]                           hostname = base::Sys.info()[["nodename"]])
[10:55:40.127]                         info <- base::sprintf("%s: %s", base::names(info), 
[10:55:40.127]                           info)
[10:55:40.127]                         info <- base::paste(info, collapse = "; ")
[10:55:40.127]                         if (!has_future) {
[10:55:40.127]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[10:55:40.127]                             info)
[10:55:40.127]                         }
[10:55:40.127]                         else {
[10:55:40.127]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[10:55:40.127]                             info, version)
[10:55:40.127]                         }
[10:55:40.127]                         base::stop(msg)
[10:55:40.127]                       }
[10:55:40.127]                     })
[10:55:40.127]                   }
[10:55:40.127]                   ...future.strategy.old <- future::plan("list")
[10:55:40.127]                   options(future.plan = NULL)
[10:55:40.127]                   Sys.unsetenv("R_FUTURE_PLAN")
[10:55:40.127]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[10:55:40.127]                 }
[10:55:40.127]                 ...future.workdir <- getwd()
[10:55:40.127]             }
[10:55:40.127]             ...future.oldOptions <- base::as.list(base::.Options)
[10:55:40.127]             ...future.oldEnvVars <- base::Sys.getenv()
[10:55:40.127]         }
[10:55:40.127]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[10:55:40.127]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[10:55:40.127]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[10:55:40.127]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[10:55:40.127]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[10:55:40.127]             future.stdout.windows.reencode = NULL, width = 80L)
[10:55:40.127]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[10:55:40.127]             base::names(...future.oldOptions))
[10:55:40.127]     }
[10:55:40.127]     if (FALSE) {
[10:55:40.127]     }
[10:55:40.127]     else {
[10:55:40.127]         if (TRUE) {
[10:55:40.127]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[10:55:40.127]                 open = "w")
[10:55:40.127]         }
[10:55:40.127]         else {
[10:55:40.127]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[10:55:40.127]                 windows = "NUL", "/dev/null"), open = "w")
[10:55:40.127]         }
[10:55:40.127]         base::sink(...future.stdout, type = "output", split = FALSE)
[10:55:40.127]         base::on.exit(if (!base::is.null(...future.stdout)) {
[10:55:40.127]             base::sink(type = "output", split = FALSE)
[10:55:40.127]             base::close(...future.stdout)
[10:55:40.127]         }, add = TRUE)
[10:55:40.127]     }
[10:55:40.127]     ...future.frame <- base::sys.nframe()
[10:55:40.127]     ...future.conditions <- base::list()
[10:55:40.127]     ...future.rng <- base::globalenv()$.Random.seed
[10:55:40.127]     if (FALSE) {
[10:55:40.127]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[10:55:40.127]             "...future.value", "...future.globalenv.names", ".Random.seed")
[10:55:40.127]     }
[10:55:40.127]     ...future.result <- base::tryCatch({
[10:55:40.127]         base::withCallingHandlers({
[10:55:40.127]             ...future.value <- base::withVisible(base::local(NA))
[10:55:40.127]             future::FutureResult(value = ...future.value$value, 
[10:55:40.127]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[10:55:40.127]                   ...future.rng), globalenv = if (FALSE) 
[10:55:40.127]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[10:55:40.127]                     ...future.globalenv.names))
[10:55:40.127]                 else NULL, started = ...future.startTime, version = "1.8")
[10:55:40.127]         }, condition = base::local({
[10:55:40.127]             c <- base::c
[10:55:40.127]             inherits <- base::inherits
[10:55:40.127]             invokeRestart <- base::invokeRestart
[10:55:40.127]             length <- base::length
[10:55:40.127]             list <- base::list
[10:55:40.127]             seq.int <- base::seq.int
[10:55:40.127]             signalCondition <- base::signalCondition
[10:55:40.127]             sys.calls <- base::sys.calls
[10:55:40.127]             `[[` <- base::`[[`
[10:55:40.127]             `+` <- base::`+`
[10:55:40.127]             `<<-` <- base::`<<-`
[10:55:40.127]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[10:55:40.127]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[10:55:40.127]                   3L)]
[10:55:40.127]             }
[10:55:40.127]             function(cond) {
[10:55:40.127]                 is_error <- inherits(cond, "error")
[10:55:40.127]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[10:55:40.127]                   NULL)
[10:55:40.127]                 if (is_error) {
[10:55:40.127]                   sessionInformation <- function() {
[10:55:40.127]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[10:55:40.127]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[10:55:40.127]                       search = base::search(), system = base::Sys.info())
[10:55:40.127]                   }
[10:55:40.127]                   ...future.conditions[[length(...future.conditions) + 
[10:55:40.127]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[10:55:40.127]                     cond$call), session = sessionInformation(), 
[10:55:40.127]                     timestamp = base::Sys.time(), signaled = 0L)
[10:55:40.127]                   signalCondition(cond)
[10:55:40.127]                 }
[10:55:40.127]                 else if (!ignore && TRUE && inherits(cond, "condition")) {
[10:55:40.127]                   signal <- FALSE && inherits(cond, character(0))
[10:55:40.127]                   ...future.conditions[[length(...future.conditions) + 
[10:55:40.127]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[10:55:40.127]                   if (FALSE && !signal) {
[10:55:40.127]                     muffleCondition <- function (cond, pattern = "^muffle") 
[10:55:40.127]                     {
[10:55:40.127]                       inherits <- base::inherits
[10:55:40.127]                       invokeRestart <- base::invokeRestart
[10:55:40.127]                       is.null <- base::is.null
[10:55:40.127]                       muffled <- FALSE
[10:55:40.127]                       if (inherits(cond, "message")) {
[10:55:40.127]                         muffled <- grepl(pattern, "muffleMessage")
[10:55:40.127]                         if (muffled) 
[10:55:40.127]                           invokeRestart("muffleMessage")
[10:55:40.127]                       }
[10:55:40.127]                       else if (inherits(cond, "warning")) {
[10:55:40.127]                         muffled <- grepl(pattern, "muffleWarning")
[10:55:40.127]                         if (muffled) 
[10:55:40.127]                           invokeRestart("muffleWarning")
[10:55:40.127]                       }
[10:55:40.127]                       else if (inherits(cond, "condition")) {
[10:55:40.127]                         if (!is.null(pattern)) {
[10:55:40.127]                           computeRestarts <- base::computeRestarts
[10:55:40.127]                           grepl <- base::grepl
[10:55:40.127]                           restarts <- computeRestarts(cond)
[10:55:40.127]                           for (restart in restarts) {
[10:55:40.127]                             name <- restart$name
[10:55:40.127]                             if (is.null(name)) 
[10:55:40.127]                               next
[10:55:40.127]                             if (!grepl(pattern, name)) 
[10:55:40.127]                               next
[10:55:40.127]                             invokeRestart(restart)
[10:55:40.127]                             muffled <- TRUE
[10:55:40.127]                             break
[10:55:40.127]                           }
[10:55:40.127]                         }
[10:55:40.127]                       }
[10:55:40.127]                       invisible(muffled)
[10:55:40.127]                     }
[10:55:40.127]                     muffleCondition(cond, pattern = "^muffle")
[10:55:40.127]                   }
[10:55:40.127]                 }
[10:55:40.127]                 else {
[10:55:40.127]                   if (TRUE) {
[10:55:40.127]                     muffleCondition <- function (cond, pattern = "^muffle") 
[10:55:40.127]                     {
[10:55:40.127]                       inherits <- base::inherits
[10:55:40.127]                       invokeRestart <- base::invokeRestart
[10:55:40.127]                       is.null <- base::is.null
[10:55:40.127]                       muffled <- FALSE
[10:55:40.127]                       if (inherits(cond, "message")) {
[10:55:40.127]                         muffled <- grepl(pattern, "muffleMessage")
[10:55:40.127]                         if (muffled) 
[10:55:40.127]                           invokeRestart("muffleMessage")
[10:55:40.127]                       }
[10:55:40.127]                       else if (inherits(cond, "warning")) {
[10:55:40.127]                         muffled <- grepl(pattern, "muffleWarning")
[10:55:40.127]                         if (muffled) 
[10:55:40.127]                           invokeRestart("muffleWarning")
[10:55:40.127]                       }
[10:55:40.127]                       else if (inherits(cond, "condition")) {
[10:55:40.127]                         if (!is.null(pattern)) {
[10:55:40.127]                           computeRestarts <- base::computeRestarts
[10:55:40.127]                           grepl <- base::grepl
[10:55:40.127]                           restarts <- computeRestarts(cond)
[10:55:40.127]                           for (restart in restarts) {
[10:55:40.127]                             name <- restart$name
[10:55:40.127]                             if (is.null(name)) 
[10:55:40.127]                               next
[10:55:40.127]                             if (!grepl(pattern, name)) 
[10:55:40.127]                               next
[10:55:40.127]                             invokeRestart(restart)
[10:55:40.127]                             muffled <- TRUE
[10:55:40.127]                             break
[10:55:40.127]                           }
[10:55:40.127]                         }
[10:55:40.127]                       }
[10:55:40.127]                       invisible(muffled)
[10:55:40.127]                     }
[10:55:40.127]                     muffleCondition(cond, pattern = "^muffle")
[10:55:40.127]                   }
[10:55:40.127]                 }
[10:55:40.127]             }
[10:55:40.127]         }))
[10:55:40.127]     }, error = function(ex) {
[10:55:40.127]         base::structure(base::list(value = NULL, visible = NULL, 
[10:55:40.127]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[10:55:40.127]                 ...future.rng), started = ...future.startTime, 
[10:55:40.127]             finished = Sys.time(), session_uuid = NA_character_, 
[10:55:40.127]             version = "1.8"), class = "FutureResult")
[10:55:40.127]     }, finally = {
[10:55:40.127]         if (!identical(...future.workdir, getwd())) 
[10:55:40.127]             setwd(...future.workdir)
[10:55:40.127]         {
[10:55:40.127]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[10:55:40.127]                 ...future.oldOptions$nwarnings <- NULL
[10:55:40.127]             }
[10:55:40.127]             base::options(...future.oldOptions)
[10:55:40.127]             if (.Platform$OS.type == "windows") {
[10:55:40.127]                 old_names <- names(...future.oldEnvVars)
[10:55:40.127]                 envs <- base::Sys.getenv()
[10:55:40.127]                 names <- names(envs)
[10:55:40.127]                 common <- intersect(names, old_names)
[10:55:40.127]                 added <- setdiff(names, old_names)
[10:55:40.127]                 removed <- setdiff(old_names, names)
[10:55:40.127]                 changed <- common[...future.oldEnvVars[common] != 
[10:55:40.127]                   envs[common]]
[10:55:40.127]                 NAMES <- toupper(changed)
[10:55:40.127]                 args <- list()
[10:55:40.127]                 for (kk in seq_along(NAMES)) {
[10:55:40.127]                   name <- changed[[kk]]
[10:55:40.127]                   NAME <- NAMES[[kk]]
[10:55:40.127]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.127]                     next
[10:55:40.127]                   args[[name]] <- ...future.oldEnvVars[[name]]
[10:55:40.127]                 }
[10:55:40.127]                 NAMES <- toupper(added)
[10:55:40.127]                 for (kk in seq_along(NAMES)) {
[10:55:40.127]                   name <- added[[kk]]
[10:55:40.127]                   NAME <- NAMES[[kk]]
[10:55:40.127]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.127]                     next
[10:55:40.127]                   args[[name]] <- ""
[10:55:40.127]                 }
[10:55:40.127]                 NAMES <- toupper(removed)
[10:55:40.127]                 for (kk in seq_along(NAMES)) {
[10:55:40.127]                   name <- removed[[kk]]
[10:55:40.127]                   NAME <- NAMES[[kk]]
[10:55:40.127]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.127]                     next
[10:55:40.127]                   args[[name]] <- ...future.oldEnvVars[[name]]
[10:55:40.127]                 }
[10:55:40.127]                 if (length(args) > 0) 
[10:55:40.127]                   base::do.call(base::Sys.setenv, args = args)
[10:55:40.127]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[10:55:40.127]             }
[10:55:40.127]             else {
[10:55:40.127]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[10:55:40.127]             }
[10:55:40.127]             {
[10:55:40.127]                 if (base::length(...future.futureOptionsAdded) > 
[10:55:40.127]                   0L) {
[10:55:40.127]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[10:55:40.127]                   base::names(opts) <- ...future.futureOptionsAdded
[10:55:40.127]                   base::options(opts)
[10:55:40.127]                 }
[10:55:40.127]                 {
[10:55:40.127]                   NULL
[10:55:40.127]                   options(future.plan = NULL)
[10:55:40.127]                   if (is.na(NA_character_)) 
[10:55:40.127]                     Sys.unsetenv("R_FUTURE_PLAN")
[10:55:40.127]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[10:55:40.127]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[10:55:40.127]                     .init = FALSE)
[10:55:40.127]                 }
[10:55:40.127]             }
[10:55:40.127]         }
[10:55:40.127]     })
[10:55:40.127]     if (TRUE) {
[10:55:40.127]         base::sink(type = "output", split = FALSE)
[10:55:40.127]         if (TRUE) {
[10:55:40.127]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[10:55:40.127]         }
[10:55:40.127]         else {
[10:55:40.127]             ...future.result["stdout"] <- base::list(NULL)
[10:55:40.127]         }
[10:55:40.127]         base::close(...future.stdout)
[10:55:40.127]         ...future.stdout <- NULL
[10:55:40.127]     }
[10:55:40.127]     ...future.result$conditions <- ...future.conditions
[10:55:40.127]     ...future.result$finished <- base::Sys.time()
[10:55:40.127]     ...future.result
[10:55:40.127] }
[10:55:40.282] plan(): plan_init() of 'tweaked', 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function' ... DONE
[10:55:40.283] plan(): nbrOfWorkers() = 2
> demo("mandelbrot", package = "future", ask = FALSE)


	demo(mandelbrot)
	---- ~~~~~~~~~~

> library("future")

> library("graphics")

> plot_what_is_done <- function(counts) {
+   for (kk in seq_along(counts)) {
+     f <- counts[[kk]]
+ 
+     ## Already plotted?
+     if (!inherits(f, "Future")) next
+ 
+     ## Not resolved?
+     if (!resolved(f)) next
+ 
+     message(sprintf("Plotting tile #%d of %d ...", kk, n))
+     counts[[kk]] <- value(f)
+     screen(kk)
+     plot(counts[[kk]])
+   }
+ 
+   counts
+ }

> ## Options
> region <- getOption("future.demo.mandelbrot.region", 1L)

> if (!is.list(region)) {
+   if (region == 1L) {
+     region <- list(xmid = -0.75, ymid = 0.0, side = 3.0)
+   } else if (region == 2L) {
+     region <- list(xmid = 0.283, ymid = -0.0095, side = 0.00026)
+   } else if (region == 3L) {
+     region <- list(xmid = 0.282989, ymid = -0.01, side = 3e-8)
+   }
+ }

> nrow <- getOption("future.demo.mandelbrot.nrow", 3L)

> resolution <- getOption("future.demo.mandelbrot.resolution", 400L)

> delay <- getOption("future.demo.mandelbrot.delay", interactive())

> if (isTRUE(delay)) {
+   delay <- function(counts) Sys.sleep(1.0)
+ } else if (!is.function(delay)) {
+   delay <- function(counts) {}
+ }

> ## Generate Mandelbrot tiles to be computed
> Cs <- mandelbrot_tiles(xmid = region$xmid, ymid = region$ymid,
+                        side = region$side, nrow = nrow,
+                        resolution = resolution)

> if (interactive()) {
+   dev.new()
+   plot.new()
+   split.screen(dim(Cs))
+   for (ii in seq_along(Cs)) {
+     screen(ii)
+     par(mar = c(0, 0, 0, 0))
+     text(x = 1 / 2, y = 1 / 2, sprintf("Future #%d\nunresolved", ii), cex = 2)
+   }
+ } else {
+   split.screen(dim(Cs))
+ }
[1] 1 2 3 4

> ## Create all Mandelbrot tiles via lazy futures
> n <- length(Cs)

> message(sprintf("Creating %d Mandelbrot tiles:", n), appendLF = FALSE)
Creating 4 Mandelbrot tiles:
> counts <- lapply(seq_along(Cs), FUN=function(ii) {
+   message(" ", ii, appendLF = FALSE)
+   C <- Cs[[ii]]
+   future({
+     message(sprintf("Calculating tile #%d of %d ...", ii, n), appendLF = FALSE)
+     fit <- mandelbrot(C)
+ 
+     ## Emulate slowness
+     delay(fit)
+ 
+     message(" done")
+     fit
+   }, lazy = TRUE)
+ })
 1[10:55:40.382] getGlobalsAndPackages() ...
[10:55:40.382] Searching for globals...
[10:55:40.399] - globals found: [9] '{', 'message', 'sprintf', 'ii', 'n', '<-', 'mandelbrot', 'C', 'delay'
[10:55:40.399] Searching for globals ... DONE
[10:55:40.400] Resolving globals: FALSE
[10:55:40.402] The total size of the 4 globals is 14.24 KiB (14584 bytes)
[10:55:40.403] The total size of the 4 globals exported for future expression ('{; message(sprintf("Calculating tile #%d of %d ...", ii, n),; appendLF = FALSE); fit <- mandelbrot(C); delay(fit); message(" done"); fit; }') is 14.24 KiB.. This exceeds the maximum allowed size of 500.00 MiB (option 'future.globals.maxSize'). The three largest globals are 'C' (10.72 KiB of class 'complex'), 'delay' (3.41 KiB of class 'function') and 'ii' (56 bytes of class 'numeric')
[10:55:40.403] - globals: [4] 'ii', 'n', 'C', 'delay'
[10:55:40.404] - packages: [1] 'future'
[10:55:40.404] getGlobalsAndPackages() ... DONE
 2[10:55:40.411] getGlobalsAndPackages() ...
[10:55:40.412] Searching for globals...
[10:55:40.422] - globals found: [9] '{', 'message', 'sprintf', 'ii', 'n', '<-', 'mandelbrot', 'C', 'delay'
[10:55:40.422] Searching for globals ... DONE
[10:55:40.422] Resolving globals: FALSE
[10:55:40.423] The total size of the 4 globals is 14.24 KiB (14584 bytes)
[10:55:40.424] The total size of the 4 globals exported for future expression ('{; message(sprintf("Calculating tile #%d of %d ...", ii, n),; appendLF = FALSE); fit <- mandelbrot(C); delay(fit); message(" done"); fit; }') is 14.24 KiB.. This exceeds the maximum allowed size of 500.00 MiB (option 'future.globals.maxSize'). The three largest globals are 'C' (10.72 KiB of class 'complex'), 'delay' (3.41 KiB of class 'function') and 'ii' (56 bytes of class 'numeric')
[10:55:40.424] - globals: [4] 'ii', 'n', 'C', 'delay'
[10:55:40.425] - packages: [1] 'future'
[10:55:40.425] getGlobalsAndPackages() ... DONE
 3[10:55:40.426] getGlobalsAndPackages() ...
[10:55:40.426] Searching for globals...
[10:55:40.433] - globals found: [9] '{', 'message', 'sprintf', 'ii', 'n', '<-', 'mandelbrot', 'C', 'delay'
[10:55:40.433] Searching for globals ... DONE
[10:55:40.433] Resolving globals: FALSE
[10:55:40.434] The total size of the 4 globals is 14.24 KiB (14584 bytes)
[10:55:40.435] The total size of the 4 globals exported for future expression ('{; message(sprintf("Calculating tile #%d of %d ...", ii, n),; appendLF = FALSE); fit <- mandelbrot(C); delay(fit); message(" done"); fit; }') is 14.24 KiB.. This exceeds the maximum allowed size of 500.00 MiB (option 'future.globals.maxSize'). The three largest globals are 'C' (10.72 KiB of class 'complex'), 'delay' (3.41 KiB of class 'function') and 'ii' (56 bytes of class 'numeric')
[10:55:40.436] - globals: [4] 'ii', 'n', 'C', 'delay'
[10:55:40.436] - packages: [1] 'future'
[10:55:40.436] getGlobalsAndPackages() ... DONE
 4[10:55:40.437] getGlobalsAndPackages() ...
[10:55:40.437] Searching for globals...
[10:55:40.444] - globals found: [9] '{', 'message', 'sprintf', 'ii', 'n', '<-', 'mandelbrot', 'C', 'delay'
[10:55:40.444] Searching for globals ... DONE
[10:55:40.444] Resolving globals: FALSE
[10:55:40.445] The total size of the 4 globals is 14.24 KiB (14584 bytes)
[10:55:40.446] The total size of the 4 globals exported for future expression ('{; message(sprintf("Calculating tile #%d of %d ...", ii, n),; appendLF = FALSE); fit <- mandelbrot(C); delay(fit); message(" done"); fit; }') is 14.24 KiB.. This exceeds the maximum allowed size of 500.00 MiB (option 'future.globals.maxSize'). The three largest globals are 'C' (10.72 KiB of class 'complex'), 'delay' (3.41 KiB of class 'function') and 'ii' (56 bytes of class 'numeric')
[10:55:40.447] - globals: [4] 'ii', 'n', 'C', 'delay'
[10:55:40.447] - packages: [1] 'future'
[10:55:40.447] getGlobalsAndPackages() ... DONE

> message(".")
.

> ## Calculate and plot tiles
> repeat {
+   counts <- plot_what_is_done(counts)
+   if (!any(sapply(counts, FUN = inherits, "Future"))) break
+ }
[10:55:40.468] resolved() for 'Future' ...
[10:55:40.468] - state: 'created'
[10:55:40.468] - run: TRUE
[10:55:40.469] - run() ...
[10:55:40.469] run() for 'Future' ...
[10:55:40.469] - state: 'created'
[10:55:40.470] - Future backend: 'FutureStrategy', 'tweaked', 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function'
[10:55:40.471] - Future class: 'MiraiFuture', 'MultiprocessFuture', 'Future', 'environment'
[10:55:40.471] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ...
[10:55:40.471]   - Field: 'label'
[10:55:40.472]   - Field: 'local'
[10:55:40.472]   - Field: 'owner'
[10:55:40.472]   - Field: 'envir'
[10:55:40.473]   - Field: 'packages'
[10:55:40.473]   - Field: 'gc'
[10:55:40.473]   - Field: 'conditions'
[10:55:40.473]   - Field: 'expr'
[10:55:40.474]   - Field: 'uuid'
[10:55:40.474]   - Field: 'seed'
[10:55:40.474]   - Field: 'version'
[10:55:40.475]   - Field: 'result'
[10:55:40.475]   - Field: 'asynchronous'
[10:55:40.475]   - Field: 'calls'
[10:55:40.475]   - Field: 'globals'
[10:55:40.476]   - Field: 'stdout'
[10:55:40.476]   - Field: 'earlySignal'
[10:55:40.476]   - Field: 'lazy'
[10:55:40.476]   - Field: 'state'
[10:55:40.477]   - Field: '.cluster'
[10:55:40.477] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ... done
[10:55:40.477] - Launch lazy future ...
[10:55:40.478] Packages needed by the future expression (n = 1): 'future'
[10:55:40.478] Packages needed by future strategies (n = 0): <none>
[10:55:40.479] {
[10:55:40.479]     {
[10:55:40.479]         {
[10:55:40.479]             ...future.startTime <- base::Sys.time()
[10:55:40.479]             {
[10:55:40.479]                 {
[10:55:40.479]                   {
[10:55:40.479]                     {
[10:55:40.479]                       base::local({
[10:55:40.479]                         has_future <- base::requireNamespace("future", 
[10:55:40.479]                           quietly = TRUE)
[10:55:40.479]                         if (has_future) {
[10:55:40.479]                           ns <- base::getNamespace("future")
[10:55:40.479]                           version <- ns[[".package"]][["version"]]
[10:55:40.479]                           if (is.null(version)) 
[10:55:40.479]                             version <- utils::packageVersion("future")
[10:55:40.479]                         }
[10:55:40.479]                         else {
[10:55:40.479]                           version <- NULL
[10:55:40.479]                         }
[10:55:40.479]                         if (!has_future || version < "1.8.0") {
[10:55:40.479]                           info <- base::c(r_version = base::gsub("R version ", 
[10:55:40.479]                             "", base::R.version$version.string), 
[10:55:40.479]                             platform = base::sprintf("%s (%s-bit)", 
[10:55:40.479]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[10:55:40.479]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[10:55:40.479]                               "release", "version")], collapse = " "), 
[10:55:40.479]                             hostname = base::Sys.info()[["nodename"]])
[10:55:40.479]                           info <- base::sprintf("%s: %s", base::names(info), 
[10:55:40.479]                             info)
[10:55:40.479]                           info <- base::paste(info, collapse = "; ")
[10:55:40.479]                           if (!has_future) {
[10:55:40.479]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[10:55:40.479]                               info)
[10:55:40.479]                           }
[10:55:40.479]                           else {
[10:55:40.479]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[10:55:40.479]                               info, version)
[10:55:40.479]                           }
[10:55:40.479]                           base::stop(msg)
[10:55:40.479]                         }
[10:55:40.479]                       })
[10:55:40.479]                     }
[10:55:40.479]                     base::local({
[10:55:40.479]                       for (pkg in "future") {
[10:55:40.479]                         base::loadNamespace(pkg)
[10:55:40.479]                         base::library(pkg, character.only = TRUE)
[10:55:40.479]                       }
[10:55:40.479]                     })
[10:55:40.479]                   }
[10:55:40.479]                   ...future.strategy.old <- future::plan("list")
[10:55:40.479]                   options(future.plan = NULL)
[10:55:40.479]                   Sys.unsetenv("R_FUTURE_PLAN")
[10:55:40.479]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[10:55:40.479]                 }
[10:55:40.479]                 ...future.workdir <- getwd()
[10:55:40.479]             }
[10:55:40.479]             ...future.oldOptions <- base::as.list(base::.Options)
[10:55:40.479]             ...future.oldEnvVars <- base::Sys.getenv()
[10:55:40.479]         }
[10:55:40.479]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[10:55:40.479]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[10:55:40.479]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[10:55:40.479]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[10:55:40.479]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[10:55:40.479]             future.stdout.windows.reencode = NULL, width = 80L)
[10:55:40.479]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[10:55:40.479]             base::names(...future.oldOptions))
[10:55:40.479]     }
[10:55:40.479]     if (FALSE) {
[10:55:40.479]     }
[10:55:40.479]     else {
[10:55:40.479]         if (TRUE) {
[10:55:40.479]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[10:55:40.479]                 open = "w")
[10:55:40.479]         }
[10:55:40.479]         else {
[10:55:40.479]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[10:55:40.479]                 windows = "NUL", "/dev/null"), open = "w")
[10:55:40.479]         }
[10:55:40.479]         base::sink(...future.stdout, type = "output", split = FALSE)
[10:55:40.479]         base::on.exit(if (!base::is.null(...future.stdout)) {
[10:55:40.479]             base::sink(type = "output", split = FALSE)
[10:55:40.479]             base::close(...future.stdout)
[10:55:40.479]         }, add = TRUE)
[10:55:40.479]     }
[10:55:40.479]     ...future.frame <- base::sys.nframe()
[10:55:40.479]     ...future.conditions <- base::list()
[10:55:40.479]     ...future.rng <- base::globalenv()$.Random.seed
[10:55:40.479]     if (FALSE) {
[10:55:40.479]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[10:55:40.479]             "...future.value", "...future.globalenv.names", ".Random.seed")
[10:55:40.479]     }
[10:55:40.479]     ...future.result <- base::tryCatch({
[10:55:40.479]         base::withCallingHandlers({
[10:55:40.479]             ...future.value <- base::withVisible(base::local({
[10:55:40.479]                 message(sprintf("Calculating tile #%d of %d ...", 
[10:55:40.479]                   ii, n), appendLF = FALSE)
[10:55:40.479]                 fit <- mandelbrot(C)
[10:55:40.479]                 delay(fit)
[10:55:40.479]                 message(" done")
[10:55:40.479]                 fit
[10:55:40.479]             }))
[10:55:40.479]             future::FutureResult(value = ...future.value$value, 
[10:55:40.479]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[10:55:40.479]                   ...future.rng), globalenv = if (FALSE) 
[10:55:40.479]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[10:55:40.479]                     ...future.globalenv.names))
[10:55:40.479]                 else NULL, started = ...future.startTime, version = "1.8")
[10:55:40.479]         }, condition = base::local({
[10:55:40.479]             c <- base::c
[10:55:40.479]             inherits <- base::inherits
[10:55:40.479]             invokeRestart <- base::invokeRestart
[10:55:40.479]             length <- base::length
[10:55:40.479]             list <- base::list
[10:55:40.479]             seq.int <- base::seq.int
[10:55:40.479]             signalCondition <- base::signalCondition
[10:55:40.479]             sys.calls <- base::sys.calls
[10:55:40.479]             `[[` <- base::`[[`
[10:55:40.479]             `+` <- base::`+`
[10:55:40.479]             `<<-` <- base::`<<-`
[10:55:40.479]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[10:55:40.479]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[10:55:40.479]                   3L)]
[10:55:40.479]             }
[10:55:40.479]             function(cond) {
[10:55:40.479]                 is_error <- inherits(cond, "error")
[10:55:40.479]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[10:55:40.479]                   NULL)
[10:55:40.479]                 if (is_error) {
[10:55:40.479]                   sessionInformation <- function() {
[10:55:40.479]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[10:55:40.479]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[10:55:40.479]                       search = base::search(), system = base::Sys.info())
[10:55:40.479]                   }
[10:55:40.479]                   ...future.conditions[[length(...future.conditions) + 
[10:55:40.479]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[10:55:40.479]                     cond$call), session = sessionInformation(), 
[10:55:40.479]                     timestamp = base::Sys.time(), signaled = 0L)
[10:55:40.479]                   signalCondition(cond)
[10:55:40.479]                 }
[10:55:40.479]                 else if (!ignore && TRUE && inherits(cond, "condition")) {
[10:55:40.479]                   signal <- FALSE && inherits(cond, character(0))
[10:55:40.479]                   ...future.conditions[[length(...future.conditions) + 
[10:55:40.479]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[10:55:40.479]                   if (FALSE && !signal) {
[10:55:40.479]                     muffleCondition <- function (cond, pattern = "^muffle") 
[10:55:40.479]                     {
[10:55:40.479]                       inherits <- base::inherits
[10:55:40.479]                       invokeRestart <- base::invokeRestart
[10:55:40.479]                       is.null <- base::is.null
[10:55:40.479]                       muffled <- FALSE
[10:55:40.479]                       if (inherits(cond, "message")) {
[10:55:40.479]                         muffled <- grepl(pattern, "muffleMessage")
[10:55:40.479]                         if (muffled) 
[10:55:40.479]                           invokeRestart("muffleMessage")
[10:55:40.479]                       }
[10:55:40.479]                       else if (inherits(cond, "warning")) {
[10:55:40.479]                         muffled <- grepl(pattern, "muffleWarning")
[10:55:40.479]                         if (muffled) 
[10:55:40.479]                           invokeRestart("muffleWarning")
[10:55:40.479]                       }
[10:55:40.479]                       else if (inherits(cond, "condition")) {
[10:55:40.479]                         if (!is.null(pattern)) {
[10:55:40.479]                           computeRestarts <- base::computeRestarts
[10:55:40.479]                           grepl <- base::grepl
[10:55:40.479]                           restarts <- computeRestarts(cond)
[10:55:40.479]                           for (restart in restarts) {
[10:55:40.479]                             name <- restart$name
[10:55:40.479]                             if (is.null(name)) 
[10:55:40.479]                               next
[10:55:40.479]                             if (!grepl(pattern, name)) 
[10:55:40.479]                               next
[10:55:40.479]                             invokeRestart(restart)
[10:55:40.479]                             muffled <- TRUE
[10:55:40.479]                             break
[10:55:40.479]                           }
[10:55:40.479]                         }
[10:55:40.479]                       }
[10:55:40.479]                       invisible(muffled)
[10:55:40.479]                     }
[10:55:40.479]                     muffleCondition(cond, pattern = "^muffle")
[10:55:40.479]                   }
[10:55:40.479]                 }
[10:55:40.479]                 else {
[10:55:40.479]                   if (TRUE) {
[10:55:40.479]                     muffleCondition <- function (cond, pattern = "^muffle") 
[10:55:40.479]                     {
[10:55:40.479]                       inherits <- base::inherits
[10:55:40.479]                       invokeRestart <- base::invokeRestart
[10:55:40.479]                       is.null <- base::is.null
[10:55:40.479]                       muffled <- FALSE
[10:55:40.479]                       if (inherits(cond, "message")) {
[10:55:40.479]                         muffled <- grepl(pattern, "muffleMessage")
[10:55:40.479]                         if (muffled) 
[10:55:40.479]                           invokeRestart("muffleMessage")
[10:55:40.479]                       }
[10:55:40.479]                       else if (inherits(cond, "warning")) {
[10:55:40.479]                         muffled <- grepl(pattern, "muffleWarning")
[10:55:40.479]                         if (muffled) 
[10:55:40.479]                           invokeRestart("muffleWarning")
[10:55:40.479]                       }
[10:55:40.479]                       else if (inherits(cond, "condition")) {
[10:55:40.479]                         if (!is.null(pattern)) {
[10:55:40.479]                           computeRestarts <- base::computeRestarts
[10:55:40.479]                           grepl <- base::grepl
[10:55:40.479]                           restarts <- computeRestarts(cond)
[10:55:40.479]                           for (restart in restarts) {
[10:55:40.479]                             name <- restart$name
[10:55:40.479]                             if (is.null(name)) 
[10:55:40.479]                               next
[10:55:40.479]                             if (!grepl(pattern, name)) 
[10:55:40.479]                               next
[10:55:40.479]                             invokeRestart(restart)
[10:55:40.479]                             muffled <- TRUE
[10:55:40.479]                             break
[10:55:40.479]                           }
[10:55:40.479]                         }
[10:55:40.479]                       }
[10:55:40.479]                       invisible(muffled)
[10:55:40.479]                     }
[10:55:40.479]                     muffleCondition(cond, pattern = "^muffle")
[10:55:40.479]                   }
[10:55:40.479]                 }
[10:55:40.479]             }
[10:55:40.479]         }))
[10:55:40.479]     }, error = function(ex) {
[10:55:40.479]         base::structure(base::list(value = NULL, visible = NULL, 
[10:55:40.479]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[10:55:40.479]                 ...future.rng), started = ...future.startTime, 
[10:55:40.479]             finished = Sys.time(), session_uuid = NA_character_, 
[10:55:40.479]             version = "1.8"), class = "FutureResult")
[10:55:40.479]     }, finally = {
[10:55:40.479]         if (!identical(...future.workdir, getwd())) 
[10:55:40.479]             setwd(...future.workdir)
[10:55:40.479]         {
[10:55:40.479]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[10:55:40.479]                 ...future.oldOptions$nwarnings <- NULL
[10:55:40.479]             }
[10:55:40.479]             base::options(...future.oldOptions)
[10:55:40.479]             if (.Platform$OS.type == "windows") {
[10:55:40.479]                 old_names <- names(...future.oldEnvVars)
[10:55:40.479]                 envs <- base::Sys.getenv()
[10:55:40.479]                 names <- names(envs)
[10:55:40.479]                 common <- intersect(names, old_names)
[10:55:40.479]                 added <- setdiff(names, old_names)
[10:55:40.479]                 removed <- setdiff(old_names, names)
[10:55:40.479]                 changed <- common[...future.oldEnvVars[common] != 
[10:55:40.479]                   envs[common]]
[10:55:40.479]                 NAMES <- toupper(changed)
[10:55:40.479]                 args <- list()
[10:55:40.479]                 for (kk in seq_along(NAMES)) {
[10:55:40.479]                   name <- changed[[kk]]
[10:55:40.479]                   NAME <- NAMES[[kk]]
[10:55:40.479]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.479]                     next
[10:55:40.479]                   args[[name]] <- ...future.oldEnvVars[[name]]
[10:55:40.479]                 }
[10:55:40.479]                 NAMES <- toupper(added)
[10:55:40.479]                 for (kk in seq_along(NAMES)) {
[10:55:40.479]                   name <- added[[kk]]
[10:55:40.479]                   NAME <- NAMES[[kk]]
[10:55:40.479]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.479]                     next
[10:55:40.479]                   args[[name]] <- ""
[10:55:40.479]                 }
[10:55:40.479]                 NAMES <- toupper(removed)
[10:55:40.479]                 for (kk in seq_along(NAMES)) {
[10:55:40.479]                   name <- removed[[kk]]
[10:55:40.479]                   NAME <- NAMES[[kk]]
[10:55:40.479]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.479]                     next
[10:55:40.479]                   args[[name]] <- ...future.oldEnvVars[[name]]
[10:55:40.479]                 }
[10:55:40.479]                 if (length(args) > 0) 
[10:55:40.479]                   base::do.call(base::Sys.setenv, args = args)
[10:55:40.479]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[10:55:40.479]             }
[10:55:40.479]             else {
[10:55:40.479]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[10:55:40.479]             }
[10:55:40.479]             {
[10:55:40.479]                 if (base::length(...future.futureOptionsAdded) > 
[10:55:40.479]                   0L) {
[10:55:40.479]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[10:55:40.479]                   base::names(opts) <- ...future.futureOptionsAdded
[10:55:40.479]                   base::options(opts)
[10:55:40.479]                 }
[10:55:40.479]                 {
[10:55:40.479]                   NULL
[10:55:40.479]                   options(future.plan = NULL)
[10:55:40.479]                   if (is.na(NA_character_)) 
[10:55:40.479]                     Sys.unsetenv("R_FUTURE_PLAN")
[10:55:40.479]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[10:55:40.479]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[10:55:40.479]                     .init = FALSE)
[10:55:40.479]                 }
[10:55:40.479]             }
[10:55:40.479]         }
[10:55:40.479]     })
[10:55:40.479]     if (TRUE) {
[10:55:40.479]         base::sink(type = "output", split = FALSE)
[10:55:40.479]         if (TRUE) {
[10:55:40.479]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[10:55:40.479]         }
[10:55:40.479]         else {
[10:55:40.479]             ...future.result["stdout"] <- base::list(NULL)
[10:55:40.479]         }
[10:55:40.479]         base::close(...future.stdout)
[10:55:40.479]         ...future.stdout <- NULL
[10:55:40.479]     }
[10:55:40.479]     ...future.result$conditions <- ...future.conditions
[10:55:40.479]     ...future.result$finished <- base::Sys.time()
[10:55:40.479]     ...future.result
[10:55:40.479] }
[10:55:40.486] - Launch lazy future ... done
[10:55:40.487] run() for 'MiraiFuture' ... done
[10:55:40.487] - run() ... done
[10:55:40.487] - resolved() ...
[10:55:40.488] resolved() for 'MiraiFuture' ...
[10:55:40.488] - state: 'running'
[10:55:40.488] - run: TRUE
[10:55:40.489] - result: 'NULL'
[10:55:40.489] - resolved: FALSE
[10:55:40.489] resolved() for 'MiraiFuture' ... done
[10:55:40.490] - resolved: FALSE
[10:55:40.490] - resolved() ... done
[10:55:40.490] resolved() for 'MiraiFuture' ... done
[10:55:40.491] resolved() for 'Future' ...
[10:55:40.491] - state: 'created'
[10:55:40.491] - run: TRUE
[10:55:40.492] - run() ...
[10:55:40.492] run() for 'Future' ...
[10:55:40.492] - state: 'created'
[10:55:40.492] - Future backend: 'FutureStrategy', 'tweaked', 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function'
[10:55:40.493] - Future class: 'MiraiFuture', 'MultiprocessFuture', 'Future', 'environment'
[10:55:40.494] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ...
[10:55:40.494]   - Field: 'label'
[10:55:40.494]   - Field: 'local'
[10:55:40.494]   - Field: 'owner'
[10:55:40.495]   - Field: 'envir'
[10:55:40.495]   - Field: 'packages'
[10:55:40.495]   - Field: 'gc'
[10:55:40.496]   - Field: 'conditions'
[10:55:40.496]   - Field: 'expr'
[10:55:40.496]   - Field: 'uuid'
[10:55:40.496]   - Field: 'seed'
[10:55:40.497]   - Field: 'version'
[10:55:40.497]   - Field: 'result'
[10:55:40.497]   - Field: 'asynchronous'
[10:55:40.498]   - Field: 'calls'
[10:55:40.498]   - Field: 'globals'
[10:55:40.498]   - Field: 'stdout'
[10:55:40.498]   - Field: 'earlySignal'
[10:55:40.499]   - Field: 'lazy'
[10:55:40.499]   - Field: 'state'
[10:55:40.499]   - Field: '.cluster'
[10:55:40.500] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ... done
[10:55:40.503] - Launch lazy future ...
[10:55:40.503] Packages needed by the future expression (n = 1): 'future'
[10:55:40.503] Packages needed by future strategies (n = 0): <none>
[10:55:40.505] {
[10:55:40.505]     {
[10:55:40.505]         {
[10:55:40.505]             ...future.startTime <- base::Sys.time()
[10:55:40.505]             {
[10:55:40.505]                 {
[10:55:40.505]                   {
[10:55:40.505]                     {
[10:55:40.505]                       base::local({
[10:55:40.505]                         has_future <- base::requireNamespace("future", 
[10:55:40.505]                           quietly = TRUE)
[10:55:40.505]                         if (has_future) {
[10:55:40.505]                           ns <- base::getNamespace("future")
[10:55:40.505]                           version <- ns[[".package"]][["version"]]
[10:55:40.505]                           if (is.null(version)) 
[10:55:40.505]                             version <- utils::packageVersion("future")
[10:55:40.505]                         }
[10:55:40.505]                         else {
[10:55:40.505]                           version <- NULL
[10:55:40.505]                         }
[10:55:40.505]                         if (!has_future || version < "1.8.0") {
[10:55:40.505]                           info <- base::c(r_version = base::gsub("R version ", 
[10:55:40.505]                             "", base::R.version$version.string), 
[10:55:40.505]                             platform = base::sprintf("%s (%s-bit)", 
[10:55:40.505]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[10:55:40.505]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[10:55:40.505]                               "release", "version")], collapse = " "), 
[10:55:40.505]                             hostname = base::Sys.info()[["nodename"]])
[10:55:40.505]                           info <- base::sprintf("%s: %s", base::names(info), 
[10:55:40.505]                             info)
[10:55:40.505]                           info <- base::paste(info, collapse = "; ")
[10:55:40.505]                           if (!has_future) {
[10:55:40.505]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[10:55:40.505]                               info)
[10:55:40.505]                           }
[10:55:40.505]                           else {
[10:55:40.505]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[10:55:40.505]                               info, version)
[10:55:40.505]                           }
[10:55:40.505]                           base::stop(msg)
[10:55:40.505]                         }
[10:55:40.505]                       })
[10:55:40.505]                     }
[10:55:40.505]                     base::local({
[10:55:40.505]                       for (pkg in "future") {
[10:55:40.505]                         base::loadNamespace(pkg)
[10:55:40.505]                         base::library(pkg, character.only = TRUE)
[10:55:40.505]                       }
[10:55:40.505]                     })
[10:55:40.505]                   }
[10:55:40.505]                   ...future.strategy.old <- future::plan("list")
[10:55:40.505]                   options(future.plan = NULL)
[10:55:40.505]                   Sys.unsetenv("R_FUTURE_PLAN")
[10:55:40.505]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[10:55:40.505]                 }
[10:55:40.505]                 ...future.workdir <- getwd()
[10:55:40.505]             }
[10:55:40.505]             ...future.oldOptions <- base::as.list(base::.Options)
[10:55:40.505]             ...future.oldEnvVars <- base::Sys.getenv()
[10:55:40.505]         }
[10:55:40.505]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[10:55:40.505]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[10:55:40.505]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[10:55:40.505]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[10:55:40.505]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[10:55:40.505]             future.stdout.windows.reencode = NULL, width = 80L)
[10:55:40.505]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[10:55:40.505]             base::names(...future.oldOptions))
[10:55:40.505]     }
[10:55:40.505]     if (FALSE) {
[10:55:40.505]     }
[10:55:40.505]     else {
[10:55:40.505]         if (TRUE) {
[10:55:40.505]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[10:55:40.505]                 open = "w")
[10:55:40.505]         }
[10:55:40.505]         else {
[10:55:40.505]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[10:55:40.505]                 windows = "NUL", "/dev/null"), open = "w")
[10:55:40.505]         }
[10:55:40.505]         base::sink(...future.stdout, type = "output", split = FALSE)
[10:55:40.505]         base::on.exit(if (!base::is.null(...future.stdout)) {
[10:55:40.505]             base::sink(type = "output", split = FALSE)
[10:55:40.505]             base::close(...future.stdout)
[10:55:40.505]         }, add = TRUE)
[10:55:40.505]     }
[10:55:40.505]     ...future.frame <- base::sys.nframe()
[10:55:40.505]     ...future.conditions <- base::list()
[10:55:40.505]     ...future.rng <- base::globalenv()$.Random.seed
[10:55:40.505]     if (FALSE) {
[10:55:40.505]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[10:55:40.505]             "...future.value", "...future.globalenv.names", ".Random.seed")
[10:55:40.505]     }
[10:55:40.505]     ...future.result <- base::tryCatch({
[10:55:40.505]         base::withCallingHandlers({
[10:55:40.505]             ...future.value <- base::withVisible(base::local({
[10:55:40.505]                 message(sprintf("Calculating tile #%d of %d ...", 
[10:55:40.505]                   ii, n), appendLF = FALSE)
[10:55:40.505]                 fit <- mandelbrot(C)
[10:55:40.505]                 delay(fit)
[10:55:40.505]                 message(" done")
[10:55:40.505]                 fit
[10:55:40.505]             }))
[10:55:40.505]             future::FutureResult(value = ...future.value$value, 
[10:55:40.505]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[10:55:40.505]                   ...future.rng), globalenv = if (FALSE) 
[10:55:40.505]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[10:55:40.505]                     ...future.globalenv.names))
[10:55:40.505]                 else NULL, started = ...future.startTime, version = "1.8")
[10:55:40.505]         }, condition = base::local({
[10:55:40.505]             c <- base::c
[10:55:40.505]             inherits <- base::inherits
[10:55:40.505]             invokeRestart <- base::invokeRestart
[10:55:40.505]             length <- base::length
[10:55:40.505]             list <- base::list
[10:55:40.505]             seq.int <- base::seq.int
[10:55:40.505]             signalCondition <- base::signalCondition
[10:55:40.505]             sys.calls <- base::sys.calls
[10:55:40.505]             `[[` <- base::`[[`
[10:55:40.505]             `+` <- base::`+`
[10:55:40.505]             `<<-` <- base::`<<-`
[10:55:40.505]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[10:55:40.505]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[10:55:40.505]                   3L)]
[10:55:40.505]             }
[10:55:40.505]             function(cond) {
[10:55:40.505]                 is_error <- inherits(cond, "error")
[10:55:40.505]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[10:55:40.505]                   NULL)
[10:55:40.505]                 if (is_error) {
[10:55:40.505]                   sessionInformation <- function() {
[10:55:40.505]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[10:55:40.505]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[10:55:40.505]                       search = base::search(), system = base::Sys.info())
[10:55:40.505]                   }
[10:55:40.505]                   ...future.conditions[[length(...future.conditions) + 
[10:55:40.505]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[10:55:40.505]                     cond$call), session = sessionInformation(), 
[10:55:40.505]                     timestamp = base::Sys.time(), signaled = 0L)
[10:55:40.505]                   signalCondition(cond)
[10:55:40.505]                 }
[10:55:40.505]                 else if (!ignore && TRUE && inherits(cond, "condition")) {
[10:55:40.505]                   signal <- FALSE && inherits(cond, character(0))
[10:55:40.505]                   ...future.conditions[[length(...future.conditions) + 
[10:55:40.505]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[10:55:40.505]                   if (FALSE && !signal) {
[10:55:40.505]                     muffleCondition <- function (cond, pattern = "^muffle") 
[10:55:40.505]                     {
[10:55:40.505]                       inherits <- base::inherits
[10:55:40.505]                       invokeRestart <- base::invokeRestart
[10:55:40.505]                       is.null <- base::is.null
[10:55:40.505]                       muffled <- FALSE
[10:55:40.505]                       if (inherits(cond, "message")) {
[10:55:40.505]                         muffled <- grepl(pattern, "muffleMessage")
[10:55:40.505]                         if (muffled) 
[10:55:40.505]                           invokeRestart("muffleMessage")
[10:55:40.505]                       }
[10:55:40.505]                       else if (inherits(cond, "warning")) {
[10:55:40.505]                         muffled <- grepl(pattern, "muffleWarning")
[10:55:40.505]                         if (muffled) 
[10:55:40.505]                           invokeRestart("muffleWarning")
[10:55:40.505]                       }
[10:55:40.505]                       else if (inherits(cond, "condition")) {
[10:55:40.505]                         if (!is.null(pattern)) {
[10:55:40.505]                           computeRestarts <- base::computeRestarts
[10:55:40.505]                           grepl <- base::grepl
[10:55:40.505]                           restarts <- computeRestarts(cond)
[10:55:40.505]                           for (restart in restarts) {
[10:55:40.505]                             name <- restart$name
[10:55:40.505]                             if (is.null(name)) 
[10:55:40.505]                               next
[10:55:40.505]                             if (!grepl(pattern, name)) 
[10:55:40.505]                               next
[10:55:40.505]                             invokeRestart(restart)
[10:55:40.505]                             muffled <- TRUE
[10:55:40.505]                             break
[10:55:40.505]                           }
[10:55:40.505]                         }
[10:55:40.505]                       }
[10:55:40.505]                       invisible(muffled)
[10:55:40.505]                     }
[10:55:40.505]                     muffleCondition(cond, pattern = "^muffle")
[10:55:40.505]                   }
[10:55:40.505]                 }
[10:55:40.505]                 else {
[10:55:40.505]                   if (TRUE) {
[10:55:40.505]                     muffleCondition <- function (cond, pattern = "^muffle") 
[10:55:40.505]                     {
[10:55:40.505]                       inherits <- base::inherits
[10:55:40.505]                       invokeRestart <- base::invokeRestart
[10:55:40.505]                       is.null <- base::is.null
[10:55:40.505]                       muffled <- FALSE
[10:55:40.505]                       if (inherits(cond, "message")) {
[10:55:40.505]                         muffled <- grepl(pattern, "muffleMessage")
[10:55:40.505]                         if (muffled) 
[10:55:40.505]                           invokeRestart("muffleMessage")
[10:55:40.505]                       }
[10:55:40.505]                       else if (inherits(cond, "warning")) {
[10:55:40.505]                         muffled <- grepl(pattern, "muffleWarning")
[10:55:40.505]                         if (muffled) 
[10:55:40.505]                           invokeRestart("muffleWarning")
[10:55:40.505]                       }
[10:55:40.505]                       else if (inherits(cond, "condition")) {
[10:55:40.505]                         if (!is.null(pattern)) {
[10:55:40.505]                           computeRestarts <- base::computeRestarts
[10:55:40.505]                           grepl <- base::grepl
[10:55:40.505]                           restarts <- computeRestarts(cond)
[10:55:40.505]                           for (restart in restarts) {
[10:55:40.505]                             name <- restart$name
[10:55:40.505]                             if (is.null(name)) 
[10:55:40.505]                               next
[10:55:40.505]                             if (!grepl(pattern, name)) 
[10:55:40.505]                               next
[10:55:40.505]                             invokeRestart(restart)
[10:55:40.505]                             muffled <- TRUE
[10:55:40.505]                             break
[10:55:40.505]                           }
[10:55:40.505]                         }
[10:55:40.505]                       }
[10:55:40.505]                       invisible(muffled)
[10:55:40.505]                     }
[10:55:40.505]                     muffleCondition(cond, pattern = "^muffle")
[10:55:40.505]                   }
[10:55:40.505]                 }
[10:55:40.505]             }
[10:55:40.505]         }))
[10:55:40.505]     }, error = function(ex) {
[10:55:40.505]         base::structure(base::list(value = NULL, visible = NULL, 
[10:55:40.505]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[10:55:40.505]                 ...future.rng), started = ...future.startTime, 
[10:55:40.505]             finished = Sys.time(), session_uuid = NA_character_, 
[10:55:40.505]             version = "1.8"), class = "FutureResult")
[10:55:40.505]     }, finally = {
[10:55:40.505]         if (!identical(...future.workdir, getwd())) 
[10:55:40.505]             setwd(...future.workdir)
[10:55:40.505]         {
[10:55:40.505]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[10:55:40.505]                 ...future.oldOptions$nwarnings <- NULL
[10:55:40.505]             }
[10:55:40.505]             base::options(...future.oldOptions)
[10:55:40.505]             if (.Platform$OS.type == "windows") {
[10:55:40.505]                 old_names <- names(...future.oldEnvVars)
[10:55:40.505]                 envs <- base::Sys.getenv()
[10:55:40.505]                 names <- names(envs)
[10:55:40.505]                 common <- intersect(names, old_names)
[10:55:40.505]                 added <- setdiff(names, old_names)
[10:55:40.505]                 removed <- setdiff(old_names, names)
[10:55:40.505]                 changed <- common[...future.oldEnvVars[common] != 
[10:55:40.505]                   envs[common]]
[10:55:40.505]                 NAMES <- toupper(changed)
[10:55:40.505]                 args <- list()
[10:55:40.505]                 for (kk in seq_along(NAMES)) {
[10:55:40.505]                   name <- changed[[kk]]
[10:55:40.505]                   NAME <- NAMES[[kk]]
[10:55:40.505]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.505]                     next
[10:55:40.505]                   args[[name]] <- ...future.oldEnvVars[[name]]
[10:55:40.505]                 }
[10:55:40.505]                 NAMES <- toupper(added)
[10:55:40.505]                 for (kk in seq_along(NAMES)) {
[10:55:40.505]                   name <- added[[kk]]
[10:55:40.505]                   NAME <- NAMES[[kk]]
[10:55:40.505]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.505]                     next
[10:55:40.505]                   args[[name]] <- ""
[10:55:40.505]                 }
[10:55:40.505]                 NAMES <- toupper(removed)
[10:55:40.505]                 for (kk in seq_along(NAMES)) {
[10:55:40.505]                   name <- removed[[kk]]
[10:55:40.505]                   NAME <- NAMES[[kk]]
[10:55:40.505]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.505]                     next
[10:55:40.505]                   args[[name]] <- ...future.oldEnvVars[[name]]
[10:55:40.505]                 }
[10:55:40.505]                 if (length(args) > 0) 
[10:55:40.505]                   base::do.call(base::Sys.setenv, args = args)
[10:55:40.505]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[10:55:40.505]             }
[10:55:40.505]             else {
[10:55:40.505]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[10:55:40.505]             }
[10:55:40.505]             {
[10:55:40.505]                 if (base::length(...future.futureOptionsAdded) > 
[10:55:40.505]                   0L) {
[10:55:40.505]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[10:55:40.505]                   base::names(opts) <- ...future.futureOptionsAdded
[10:55:40.505]                   base::options(opts)
[10:55:40.505]                 }
[10:55:40.505]                 {
[10:55:40.505]                   NULL
[10:55:40.505]                   options(future.plan = NULL)
[10:55:40.505]                   if (is.na(NA_character_)) 
[10:55:40.505]                     Sys.unsetenv("R_FUTURE_PLAN")
[10:55:40.505]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[10:55:40.505]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[10:55:40.505]                     .init = FALSE)
[10:55:40.505]                 }
[10:55:40.505]             }
[10:55:40.505]         }
[10:55:40.505]     })
[10:55:40.505]     if (TRUE) {
[10:55:40.505]         base::sink(type = "output", split = FALSE)
[10:55:40.505]         if (TRUE) {
[10:55:40.505]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[10:55:40.505]         }
[10:55:40.505]         else {
[10:55:40.505]             ...future.result["stdout"] <- base::list(NULL)
[10:55:40.505]         }
[10:55:40.505]         base::close(...future.stdout)
[10:55:40.505]         ...future.stdout <- NULL
[10:55:40.505]     }
[10:55:40.505]     ...future.result$conditions <- ...future.conditions
[10:55:40.505]     ...future.result$finished <- base::Sys.time()
[10:55:40.505]     ...future.result
[10:55:40.505] }
[10:55:40.512] - Launch lazy future ... done
[10:55:40.512] run() for 'MiraiFuture' ... done
[10:55:40.512] - run() ... done
[10:55:40.513] - resolved() ...
[10:55:40.513] resolved() for 'MiraiFuture' ...
[10:55:40.513] - state: 'running'
[10:55:40.514] - run: TRUE
[10:55:40.514] - result: 'NULL'
[10:55:40.514] - resolved: FALSE
[10:55:40.514] resolved() for 'MiraiFuture' ... done
[10:55:40.515] - resolved: FALSE
[10:55:40.515] - resolved() ... done
[10:55:40.515] resolved() for 'MiraiFuture' ... done
[10:55:40.516] resolved() for 'Future' ...
[10:55:40.516] - state: 'created'
[10:55:40.516] - run: TRUE
[10:55:40.516] - run() ...
[10:55:40.517] run() for 'Future' ...
[10:55:40.517] - state: 'created'
[10:55:40.517] - Future backend: 'FutureStrategy', 'tweaked', 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function'
[10:55:40.518] - Future class: 'MiraiFuture', 'MultiprocessFuture', 'Future', 'environment'
[10:55:40.518] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ...
[10:55:40.519]   - Field: 'label'
[10:55:40.519]   - Field: 'local'
[10:55:40.520]   - Field: 'owner'
[10:55:40.520]   - Field: 'envir'
[10:55:40.520]   - Field: 'packages'
[10:55:40.520]   - Field: 'gc'
[10:55:40.521]   - Field: 'conditions'
[10:55:40.521]   - Field: 'expr'
[10:55:40.521]   - Field: 'uuid'
[10:55:40.522]   - Field: 'seed'
[10:55:40.522]   - Field: 'version'
[10:55:40.522]   - Field: 'result'
[10:55:40.522]   - Field: 'asynchronous'
[10:55:40.523]   - Field: 'calls'
[10:55:40.523]   - Field: 'globals'
[10:55:40.523]   - Field: 'stdout'
[10:55:40.524]   - Field: 'earlySignal'
[10:55:40.524]   - Field: 'lazy'
[10:55:40.524]   - Field: 'state'
[10:55:40.525]   - Field: '.cluster'
[10:55:40.525] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ... done
[10:55:40.525] - Launch lazy future ...
[10:55:40.525] Packages needed by the future expression (n = 1): 'future'
[10:55:40.526] Packages needed by future strategies (n = 0): <none>
[10:55:40.527] {
[10:55:40.527]     {
[10:55:40.527]         {
[10:55:40.527]             ...future.startTime <- base::Sys.time()
[10:55:40.527]             {
[10:55:40.527]                 {
[10:55:40.527]                   {
[10:55:40.527]                     {
[10:55:40.527]                       base::local({
[10:55:40.527]                         has_future <- base::requireNamespace("future", 
[10:55:40.527]                           quietly = TRUE)
[10:55:40.527]                         if (has_future) {
[10:55:40.527]                           ns <- base::getNamespace("future")
[10:55:40.527]                           version <- ns[[".package"]][["version"]]
[10:55:40.527]                           if (is.null(version)) 
[10:55:40.527]                             version <- utils::packageVersion("future")
[10:55:40.527]                         }
[10:55:40.527]                         else {
[10:55:40.527]                           version <- NULL
[10:55:40.527]                         }
[10:55:40.527]                         if (!has_future || version < "1.8.0") {
[10:55:40.527]                           info <- base::c(r_version = base::gsub("R version ", 
[10:55:40.527]                             "", base::R.version$version.string), 
[10:55:40.527]                             platform = base::sprintf("%s (%s-bit)", 
[10:55:40.527]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[10:55:40.527]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[10:55:40.527]                               "release", "version")], collapse = " "), 
[10:55:40.527]                             hostname = base::Sys.info()[["nodename"]])
[10:55:40.527]                           info <- base::sprintf("%s: %s", base::names(info), 
[10:55:40.527]                             info)
[10:55:40.527]                           info <- base::paste(info, collapse = "; ")
[10:55:40.527]                           if (!has_future) {
[10:55:40.527]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[10:55:40.527]                               info)
[10:55:40.527]                           }
[10:55:40.527]                           else {
[10:55:40.527]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[10:55:40.527]                               info, version)
[10:55:40.527]                           }
[10:55:40.527]                           base::stop(msg)
[10:55:40.527]                         }
[10:55:40.527]                       })
[10:55:40.527]                     }
[10:55:40.527]                     base::local({
[10:55:40.527]                       for (pkg in "future") {
[10:55:40.527]                         base::loadNamespace(pkg)
[10:55:40.527]                         base::library(pkg, character.only = TRUE)
[10:55:40.527]                       }
[10:55:40.527]                     })
[10:55:40.527]                   }
[10:55:40.527]                   ...future.strategy.old <- future::plan("list")
[10:55:40.527]                   options(future.plan = NULL)
[10:55:40.527]                   Sys.unsetenv("R_FUTURE_PLAN")
[10:55:40.527]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[10:55:40.527]                 }
[10:55:40.527]                 ...future.workdir <- getwd()
[10:55:40.527]             }
[10:55:40.527]             ...future.oldOptions <- base::as.list(base::.Options)
[10:55:40.527]             ...future.oldEnvVars <- base::Sys.getenv()
[10:55:40.527]         }
[10:55:40.527]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[10:55:40.527]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[10:55:40.527]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[10:55:40.527]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[10:55:40.527]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[10:55:40.527]             future.stdout.windows.reencode = NULL, width = 80L)
[10:55:40.527]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[10:55:40.527]             base::names(...future.oldOptions))
[10:55:40.527]     }
[10:55:40.527]     if (FALSE) {
[10:55:40.527]     }
[10:55:40.527]     else {
[10:55:40.527]         if (TRUE) {
[10:55:40.527]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[10:55:40.527]                 open = "w")
[10:55:40.527]         }
[10:55:40.527]         else {
[10:55:40.527]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[10:55:40.527]                 windows = "NUL", "/dev/null"), open = "w")
[10:55:40.527]         }
[10:55:40.527]         base::sink(...future.stdout, type = "output", split = FALSE)
[10:55:40.527]         base::on.exit(if (!base::is.null(...future.stdout)) {
[10:55:40.527]             base::sink(type = "output", split = FALSE)
[10:55:40.527]             base::close(...future.stdout)
[10:55:40.527]         }, add = TRUE)
[10:55:40.527]     }
[10:55:40.527]     ...future.frame <- base::sys.nframe()
[10:55:40.527]     ...future.conditions <- base::list()
[10:55:40.527]     ...future.rng <- base::globalenv()$.Random.seed
[10:55:40.527]     if (FALSE) {
[10:55:40.527]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[10:55:40.527]             "...future.value", "...future.globalenv.names", ".Random.seed")
[10:55:40.527]     }
[10:55:40.527]     ...future.result <- base::tryCatch({
[10:55:40.527]         base::withCallingHandlers({
[10:55:40.527]             ...future.value <- base::withVisible(base::local({
[10:55:40.527]                 message(sprintf("Calculating tile #%d of %d ...", 
[10:55:40.527]                   ii, n), appendLF = FALSE)
[10:55:40.527]                 fit <- mandelbrot(C)
[10:55:40.527]                 delay(fit)
[10:55:40.527]                 message(" done")
[10:55:40.527]                 fit
[10:55:40.527]             }))
[10:55:40.527]             future::FutureResult(value = ...future.value$value, 
[10:55:40.527]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[10:55:40.527]                   ...future.rng), globalenv = if (FALSE) 
[10:55:40.527]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[10:55:40.527]                     ...future.globalenv.names))
[10:55:40.527]                 else NULL, started = ...future.startTime, version = "1.8")
[10:55:40.527]         }, condition = base::local({
[10:55:40.527]             c <- base::c
[10:55:40.527]             inherits <- base::inherits
[10:55:40.527]             invokeRestart <- base::invokeRestart
[10:55:40.527]             length <- base::length
[10:55:40.527]             list <- base::list
[10:55:40.527]             seq.int <- base::seq.int
[10:55:40.527]             signalCondition <- base::signalCondition
[10:55:40.527]             sys.calls <- base::sys.calls
[10:55:40.527]             `[[` <- base::`[[`
[10:55:40.527]             `+` <- base::`+`
[10:55:40.527]             `<<-` <- base::`<<-`
[10:55:40.527]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[10:55:40.527]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[10:55:40.527]                   3L)]
[10:55:40.527]             }
[10:55:40.527]             function(cond) {
[10:55:40.527]                 is_error <- inherits(cond, "error")
[10:55:40.527]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[10:55:40.527]                   NULL)
[10:55:40.527]                 if (is_error) {
[10:55:40.527]                   sessionInformation <- function() {
[10:55:40.527]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[10:55:40.527]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[10:55:40.527]                       search = base::search(), system = base::Sys.info())
[10:55:40.527]                   }
[10:55:40.527]                   ...future.conditions[[length(...future.conditions) + 
[10:55:40.527]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[10:55:40.527]                     cond$call), session = sessionInformation(), 
[10:55:40.527]                     timestamp = base::Sys.time(), signaled = 0L)
[10:55:40.527]                   signalCondition(cond)
[10:55:40.527]                 }
[10:55:40.527]                 else if (!ignore && TRUE && inherits(cond, "condition")) {
[10:55:40.527]                   signal <- FALSE && inherits(cond, character(0))
[10:55:40.527]                   ...future.conditions[[length(...future.conditions) + 
[10:55:40.527]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[10:55:40.527]                   if (FALSE && !signal) {
[10:55:40.527]                     muffleCondition <- function (cond, pattern = "^muffle") 
[10:55:40.527]                     {
[10:55:40.527]                       inherits <- base::inherits
[10:55:40.527]                       invokeRestart <- base::invokeRestart
[10:55:40.527]                       is.null <- base::is.null
[10:55:40.527]                       muffled <- FALSE
[10:55:40.527]                       if (inherits(cond, "message")) {
[10:55:40.527]                         muffled <- grepl(pattern, "muffleMessage")
[10:55:40.527]                         if (muffled) 
[10:55:40.527]                           invokeRestart("muffleMessage")
[10:55:40.527]                       }
[10:55:40.527]                       else if (inherits(cond, "warning")) {
[10:55:40.527]                         muffled <- grepl(pattern, "muffleWarning")
[10:55:40.527]                         if (muffled) 
[10:55:40.527]                           invokeRestart("muffleWarning")
[10:55:40.527]                       }
[10:55:40.527]                       else if (inherits(cond, "condition")) {
[10:55:40.527]                         if (!is.null(pattern)) {
[10:55:40.527]                           computeRestarts <- base::computeRestarts
[10:55:40.527]                           grepl <- base::grepl
[10:55:40.527]                           restarts <- computeRestarts(cond)
[10:55:40.527]                           for (restart in restarts) {
[10:55:40.527]                             name <- restart$name
[10:55:40.527]                             if (is.null(name)) 
[10:55:40.527]                               next
[10:55:40.527]                             if (!grepl(pattern, name)) 
[10:55:40.527]                               next
[10:55:40.527]                             invokeRestart(restart)
[10:55:40.527]                             muffled <- TRUE
[10:55:40.527]                             break
[10:55:40.527]                           }
[10:55:40.527]                         }
[10:55:40.527]                       }
[10:55:40.527]                       invisible(muffled)
[10:55:40.527]                     }
[10:55:40.527]                     muffleCondition(cond, pattern = "^muffle")
[10:55:40.527]                   }
[10:55:40.527]                 }
[10:55:40.527]                 else {
[10:55:40.527]                   if (TRUE) {
[10:55:40.527]                     muffleCondition <- function (cond, pattern = "^muffle") 
[10:55:40.527]                     {
[10:55:40.527]                       inherits <- base::inherits
[10:55:40.527]                       invokeRestart <- base::invokeRestart
[10:55:40.527]                       is.null <- base::is.null
[10:55:40.527]                       muffled <- FALSE
[10:55:40.527]                       if (inherits(cond, "message")) {
[10:55:40.527]                         muffled <- grepl(pattern, "muffleMessage")
[10:55:40.527]                         if (muffled) 
[10:55:40.527]                           invokeRestart("muffleMessage")
[10:55:40.527]                       }
[10:55:40.527]                       else if (inherits(cond, "warning")) {
[10:55:40.527]                         muffled <- grepl(pattern, "muffleWarning")
[10:55:40.527]                         if (muffled) 
[10:55:40.527]                           invokeRestart("muffleWarning")
[10:55:40.527]                       }
[10:55:40.527]                       else if (inherits(cond, "condition")) {
[10:55:40.527]                         if (!is.null(pattern)) {
[10:55:40.527]                           computeRestarts <- base::computeRestarts
[10:55:40.527]                           grepl <- base::grepl
[10:55:40.527]                           restarts <- computeRestarts(cond)
[10:55:40.527]                           for (restart in restarts) {
[10:55:40.527]                             name <- restart$name
[10:55:40.527]                             if (is.null(name)) 
[10:55:40.527]                               next
[10:55:40.527]                             if (!grepl(pattern, name)) 
[10:55:40.527]                               next
[10:55:40.527]                             invokeRestart(restart)
[10:55:40.527]                             muffled <- TRUE
[10:55:40.527]                             break
[10:55:40.527]                           }
[10:55:40.527]                         }
[10:55:40.527]                       }
[10:55:40.527]                       invisible(muffled)
[10:55:40.527]                     }
[10:55:40.527]                     muffleCondition(cond, pattern = "^muffle")
[10:55:40.527]                   }
[10:55:40.527]                 }
[10:55:40.527]             }
[10:55:40.527]         }))
[10:55:40.527]     }, error = function(ex) {
[10:55:40.527]         base::structure(base::list(value = NULL, visible = NULL, 
[10:55:40.527]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[10:55:40.527]                 ...future.rng), started = ...future.startTime, 
[10:55:40.527]             finished = Sys.time(), session_uuid = NA_character_, 
[10:55:40.527]             version = "1.8"), class = "FutureResult")
[10:55:40.527]     }, finally = {
[10:55:40.527]         if (!identical(...future.workdir, getwd())) 
[10:55:40.527]             setwd(...future.workdir)
[10:55:40.527]         {
[10:55:40.527]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[10:55:40.527]                 ...future.oldOptions$nwarnings <- NULL
[10:55:40.527]             }
[10:55:40.527]             base::options(...future.oldOptions)
[10:55:40.527]             if (.Platform$OS.type == "windows") {
[10:55:40.527]                 old_names <- names(...future.oldEnvVars)
[10:55:40.527]                 envs <- base::Sys.getenv()
[10:55:40.527]                 names <- names(envs)
[10:55:40.527]                 common <- intersect(names, old_names)
[10:55:40.527]                 added <- setdiff(names, old_names)
[10:55:40.527]                 removed <- setdiff(old_names, names)
[10:55:40.527]                 changed <- common[...future.oldEnvVars[common] != 
[10:55:40.527]                   envs[common]]
[10:55:40.527]                 NAMES <- toupper(changed)
[10:55:40.527]                 args <- list()
[10:55:40.527]                 for (kk in seq_along(NAMES)) {
[10:55:40.527]                   name <- changed[[kk]]
[10:55:40.527]                   NAME <- NAMES[[kk]]
[10:55:40.527]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.527]                     next
[10:55:40.527]                   args[[name]] <- ...future.oldEnvVars[[name]]
[10:55:40.527]                 }
[10:55:40.527]                 NAMES <- toupper(added)
[10:55:40.527]                 for (kk in seq_along(NAMES)) {
[10:55:40.527]                   name <- added[[kk]]
[10:55:40.527]                   NAME <- NAMES[[kk]]
[10:55:40.527]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.527]                     next
[10:55:40.527]                   args[[name]] <- ""
[10:55:40.527]                 }
[10:55:40.527]                 NAMES <- toupper(removed)
[10:55:40.527]                 for (kk in seq_along(NAMES)) {
[10:55:40.527]                   name <- removed[[kk]]
[10:55:40.527]                   NAME <- NAMES[[kk]]
[10:55:40.527]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.527]                     next
[10:55:40.527]                   args[[name]] <- ...future.oldEnvVars[[name]]
[10:55:40.527]                 }
[10:55:40.527]                 if (length(args) > 0) 
[10:55:40.527]                   base::do.call(base::Sys.setenv, args = args)
[10:55:40.527]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[10:55:40.527]             }
[10:55:40.527]             else {
[10:55:40.527]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[10:55:40.527]             }
[10:55:40.527]             {
[10:55:40.527]                 if (base::length(...future.futureOptionsAdded) > 
[10:55:40.527]                   0L) {
[10:55:40.527]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[10:55:40.527]                   base::names(opts) <- ...future.futureOptionsAdded
[10:55:40.527]                   base::options(opts)
[10:55:40.527]                 }
[10:55:40.527]                 {
[10:55:40.527]                   NULL
[10:55:40.527]                   options(future.plan = NULL)
[10:55:40.527]                   if (is.na(NA_character_)) 
[10:55:40.527]                     Sys.unsetenv("R_FUTURE_PLAN")
[10:55:40.527]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[10:55:40.527]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[10:55:40.527]                     .init = FALSE)
[10:55:40.527]                 }
[10:55:40.527]             }
[10:55:40.527]         }
[10:55:40.527]     })
[10:55:40.527]     if (TRUE) {
[10:55:40.527]         base::sink(type = "output", split = FALSE)
[10:55:40.527]         if (TRUE) {
[10:55:40.527]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[10:55:40.527]         }
[10:55:40.527]         else {
[10:55:40.527]             ...future.result["stdout"] <- base::list(NULL)
[10:55:40.527]         }
[10:55:40.527]         base::close(...future.stdout)
[10:55:40.527]         ...future.stdout <- NULL
[10:55:40.527]     }
[10:55:40.527]     ...future.result$conditions <- ...future.conditions
[10:55:40.527]     ...future.result$finished <- base::Sys.time()
[10:55:40.527]     ...future.result
[10:55:40.527] }
[10:55:40.534] - Launch lazy future ... done
[10:55:40.534] run() for 'MiraiFuture' ... done
[10:55:40.535] - run() ... done
[10:55:40.535] - resolved() ...
[10:55:40.535] resolved() for 'MiraiFuture' ...
[10:55:40.535] - state: 'running'
[10:55:40.536] - run: TRUE
[10:55:40.536] - result: 'NULL'
[10:55:40.536] - resolved: FALSE
[10:55:40.537] resolved() for 'MiraiFuture' ... done
[10:55:40.537] - resolved: FALSE
[10:55:40.537] - resolved() ... done
[10:55:40.537] resolved() for 'MiraiFuture' ... done
[10:55:40.538] resolved() for 'Future' ...
[10:55:40.538] - state: 'created'
[10:55:40.538] - run: TRUE
[10:55:40.539] - run() ...
[10:55:40.539] run() for 'Future' ...
[10:55:40.539] - state: 'created'
[10:55:40.540] - Future backend: 'FutureStrategy', 'tweaked', 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function'
[10:55:40.540] - Future class: 'MiraiFuture', 'MultiprocessFuture', 'Future', 'environment'
[10:55:40.541] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ...
[10:55:40.541]   - Field: 'label'
[10:55:40.541]   - Field: 'local'
[10:55:40.542]   - Field: 'owner'
[10:55:40.542]   - Field: 'envir'
[10:55:40.542]   - Field: 'packages'
[10:55:40.542]   - Field: 'gc'
[10:55:40.543]   - Field: 'conditions'
[10:55:40.543]   - Field: 'expr'
[10:55:40.543]   - Field: 'uuid'
[10:55:40.544]   - Field: 'seed'
[10:55:40.544]   - Field: 'version'
[10:55:40.544]   - Field: 'result'
[10:55:40.544]   - Field: 'asynchronous'
[10:55:40.545]   - Field: 'calls'
[10:55:40.545]   - Field: 'globals'
[10:55:40.545]   - Field: 'stdout'
[10:55:40.545]   - Field: 'earlySignal'
[10:55:40.546]   - Field: 'lazy'
[10:55:40.546]   - Field: 'state'
[10:55:40.546]   - Field: '.cluster'
[10:55:40.547] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ... done
[10:55:40.547] - Launch lazy future ...
[10:55:40.547] Packages needed by the future expression (n = 1): 'future'
[10:55:40.548] Packages needed by future strategies (n = 0): <none>
[10:55:40.549] {
[10:55:40.549]     {
[10:55:40.549]         {
[10:55:40.549]             ...future.startTime <- base::Sys.time()
[10:55:40.549]             {
[10:55:40.549]                 {
[10:55:40.549]                   {
[10:55:40.549]                     {
[10:55:40.549]                       base::local({
[10:55:40.549]                         has_future <- base::requireNamespace("future", 
[10:55:40.549]                           quietly = TRUE)
[10:55:40.549]                         if (has_future) {
[10:55:40.549]                           ns <- base::getNamespace("future")
[10:55:40.549]                           version <- ns[[".package"]][["version"]]
[10:55:40.549]                           if (is.null(version)) 
[10:55:40.549]                             version <- utils::packageVersion("future")
[10:55:40.549]                         }
[10:55:40.549]                         else {
[10:55:40.549]                           version <- NULL
[10:55:40.549]                         }
[10:55:40.549]                         if (!has_future || version < "1.8.0") {
[10:55:40.549]                           info <- base::c(r_version = base::gsub("R version ", 
[10:55:40.549]                             "", base::R.version$version.string), 
[10:55:40.549]                             platform = base::sprintf("%s (%s-bit)", 
[10:55:40.549]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[10:55:40.549]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[10:55:40.549]                               "release", "version")], collapse = " "), 
[10:55:40.549]                             hostname = base::Sys.info()[["nodename"]])
[10:55:40.549]                           info <- base::sprintf("%s: %s", base::names(info), 
[10:55:40.549]                             info)
[10:55:40.549]                           info <- base::paste(info, collapse = "; ")
[10:55:40.549]                           if (!has_future) {
[10:55:40.549]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[10:55:40.549]                               info)
[10:55:40.549]                           }
[10:55:40.549]                           else {
[10:55:40.549]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[10:55:40.549]                               info, version)
[10:55:40.549]                           }
[10:55:40.549]                           base::stop(msg)
[10:55:40.549]                         }
[10:55:40.549]                       })
[10:55:40.549]                     }
[10:55:40.549]                     base::local({
[10:55:40.549]                       for (pkg in "future") {
[10:55:40.549]                         base::loadNamespace(pkg)
[10:55:40.549]                         base::library(pkg, character.only = TRUE)
[10:55:40.549]                       }
[10:55:40.549]                     })
[10:55:40.549]                   }
[10:55:40.549]                   ...future.strategy.old <- future::plan("list")
[10:55:40.549]                   options(future.plan = NULL)
[10:55:40.549]                   Sys.unsetenv("R_FUTURE_PLAN")
[10:55:40.549]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[10:55:40.549]                 }
[10:55:40.549]                 ...future.workdir <- getwd()
[10:55:40.549]             }
[10:55:40.549]             ...future.oldOptions <- base::as.list(base::.Options)
[10:55:40.549]             ...future.oldEnvVars <- base::Sys.getenv()
[10:55:40.549]         }
[10:55:40.549]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[10:55:40.549]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[10:55:40.549]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[10:55:40.549]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[10:55:40.549]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[10:55:40.549]             future.stdout.windows.reencode = NULL, width = 80L)
[10:55:40.549]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[10:55:40.549]             base::names(...future.oldOptions))
[10:55:40.549]     }
[10:55:40.549]     if (FALSE) {
[10:55:40.549]     }
[10:55:40.549]     else {
[10:55:40.549]         if (TRUE) {
[10:55:40.549]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[10:55:40.549]                 open = "w")
[10:55:40.549]         }
[10:55:40.549]         else {
[10:55:40.549]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[10:55:40.549]                 windows = "NUL", "/dev/null"), open = "w")
[10:55:40.549]         }
[10:55:40.549]         base::sink(...future.stdout, type = "output", split = FALSE)
[10:55:40.549]         base::on.exit(if (!base::is.null(...future.stdout)) {
[10:55:40.549]             base::sink(type = "output", split = FALSE)
[10:55:40.549]             base::close(...future.stdout)
[10:55:40.549]         }, add = TRUE)
[10:55:40.549]     }
[10:55:40.549]     ...future.frame <- base::sys.nframe()
[10:55:40.549]     ...future.conditions <- base::list()
[10:55:40.549]     ...future.rng <- base::globalenv()$.Random.seed
[10:55:40.549]     if (FALSE) {
[10:55:40.549]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[10:55:40.549]             "...future.value", "...future.globalenv.names", ".Random.seed")
[10:55:40.549]     }
[10:55:40.549]     ...future.result <- base::tryCatch({
[10:55:40.549]         base::withCallingHandlers({
[10:55:40.549]             ...future.value <- base::withVisible(base::local({
[10:55:40.549]                 message(sprintf("Calculating tile #%d of %d ...", 
[10:55:40.549]                   ii, n), appendLF = FALSE)
[10:55:40.549]                 fit <- mandelbrot(C)
[10:55:40.549]                 delay(fit)
[10:55:40.549]                 message(" done")
[10:55:40.549]                 fit
[10:55:40.549]             }))
[10:55:40.549]             future::FutureResult(value = ...future.value$value, 
[10:55:40.549]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[10:55:40.549]                   ...future.rng), globalenv = if (FALSE) 
[10:55:40.549]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[10:55:40.549]                     ...future.globalenv.names))
[10:55:40.549]                 else NULL, started = ...future.startTime, version = "1.8")
[10:55:40.549]         }, condition = base::local({
[10:55:40.549]             c <- base::c
[10:55:40.549]             inherits <- base::inherits
[10:55:40.549]             invokeRestart <- base::invokeRestart
[10:55:40.549]             length <- base::length
[10:55:40.549]             list <- base::list
[10:55:40.549]             seq.int <- base::seq.int
[10:55:40.549]             signalCondition <- base::signalCondition
[10:55:40.549]             sys.calls <- base::sys.calls
[10:55:40.549]             `[[` <- base::`[[`
[10:55:40.549]             `+` <- base::`+`
[10:55:40.549]             `<<-` <- base::`<<-`
[10:55:40.549]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[10:55:40.549]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[10:55:40.549]                   3L)]
[10:55:40.549]             }
[10:55:40.549]             function(cond) {
[10:55:40.549]                 is_error <- inherits(cond, "error")
[10:55:40.549]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[10:55:40.549]                   NULL)
[10:55:40.549]                 if (is_error) {
[10:55:40.549]                   sessionInformation <- function() {
[10:55:40.549]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[10:55:40.549]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[10:55:40.549]                       search = base::search(), system = base::Sys.info())
[10:55:40.549]                   }
[10:55:40.549]                   ...future.conditions[[length(...future.conditions) + 
[10:55:40.549]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[10:55:40.549]                     cond$call), session = sessionInformation(), 
[10:55:40.549]                     timestamp = base::Sys.time(), signaled = 0L)
[10:55:40.549]                   signalCondition(cond)
[10:55:40.549]                 }
[10:55:40.549]                 else if (!ignore && TRUE && inherits(cond, "condition")) {
[10:55:40.549]                   signal <- FALSE && inherits(cond, character(0))
[10:55:40.549]                   ...future.conditions[[length(...future.conditions) + 
[10:55:40.549]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[10:55:40.549]                   if (FALSE && !signal) {
[10:55:40.549]                     muffleCondition <- function (cond, pattern = "^muffle") 
[10:55:40.549]                     {
[10:55:40.549]                       inherits <- base::inherits
[10:55:40.549]                       invokeRestart <- base::invokeRestart
[10:55:40.549]                       is.null <- base::is.null
[10:55:40.549]                       muffled <- FALSE
[10:55:40.549]                       if (inherits(cond, "message")) {
[10:55:40.549]                         muffled <- grepl(pattern, "muffleMessage")
[10:55:40.549]                         if (muffled) 
[10:55:40.549]                           invokeRestart("muffleMessage")
[10:55:40.549]                       }
[10:55:40.549]                       else if (inherits(cond, "warning")) {
[10:55:40.549]                         muffled <- grepl(pattern, "muffleWarning")
[10:55:40.549]                         if (muffled) 
[10:55:40.549]                           invokeRestart("muffleWarning")
[10:55:40.549]                       }
[10:55:40.549]                       else if (inherits(cond, "condition")) {
[10:55:40.549]                         if (!is.null(pattern)) {
[10:55:40.549]                           computeRestarts <- base::computeRestarts
[10:55:40.549]                           grepl <- base::grepl
[10:55:40.549]                           restarts <- computeRestarts(cond)
[10:55:40.549]                           for (restart in restarts) {
[10:55:40.549]                             name <- restart$name
[10:55:40.549]                             if (is.null(name)) 
[10:55:40.549]                               next
[10:55:40.549]                             if (!grepl(pattern, name)) 
[10:55:40.549]                               next
[10:55:40.549]                             invokeRestart(restart)
[10:55:40.549]                             muffled <- TRUE
[10:55:40.549]                             break
[10:55:40.549]                           }
[10:55:40.549]                         }
[10:55:40.549]                       }
[10:55:40.549]                       invisible(muffled)
[10:55:40.549]                     }
[10:55:40.549]                     muffleCondition(cond, pattern = "^muffle")
[10:55:40.549]                   }
[10:55:40.549]                 }
[10:55:40.549]                 else {
[10:55:40.549]                   if (TRUE) {
[10:55:40.549]                     muffleCondition <- function (cond, pattern = "^muffle") 
[10:55:40.549]                     {
[10:55:40.549]                       inherits <- base::inherits
[10:55:40.549]                       invokeRestart <- base::invokeRestart
[10:55:40.549]                       is.null <- base::is.null
[10:55:40.549]                       muffled <- FALSE
[10:55:40.549]                       if (inherits(cond, "message")) {
[10:55:40.549]                         muffled <- grepl(pattern, "muffleMessage")
[10:55:40.549]                         if (muffled) 
[10:55:40.549]                           invokeRestart("muffleMessage")
[10:55:40.549]                       }
[10:55:40.549]                       else if (inherits(cond, "warning")) {
[10:55:40.549]                         muffled <- grepl(pattern, "muffleWarning")
[10:55:40.549]                         if (muffled) 
[10:55:40.549]                           invokeRestart("muffleWarning")
[10:55:40.549]                       }
[10:55:40.549]                       else if (inherits(cond, "condition")) {
[10:55:40.549]                         if (!is.null(pattern)) {
[10:55:40.549]                           computeRestarts <- base::computeRestarts
[10:55:40.549]                           grepl <- base::grepl
[10:55:40.549]                           restarts <- computeRestarts(cond)
[10:55:40.549]                           for (restart in restarts) {
[10:55:40.549]                             name <- restart$name
[10:55:40.549]                             if (is.null(name)) 
[10:55:40.549]                               next
[10:55:40.549]                             if (!grepl(pattern, name)) 
[10:55:40.549]                               next
[10:55:40.549]                             invokeRestart(restart)
[10:55:40.549]                             muffled <- TRUE
[10:55:40.549]                             break
[10:55:40.549]                           }
[10:55:40.549]                         }
[10:55:40.549]                       }
[10:55:40.549]                       invisible(muffled)
[10:55:40.549]                     }
[10:55:40.549]                     muffleCondition(cond, pattern = "^muffle")
[10:55:40.549]                   }
[10:55:40.549]                 }
[10:55:40.549]             }
[10:55:40.549]         }))
[10:55:40.549]     }, error = function(ex) {
[10:55:40.549]         base::structure(base::list(value = NULL, visible = NULL, 
[10:55:40.549]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[10:55:40.549]                 ...future.rng), started = ...future.startTime, 
[10:55:40.549]             finished = Sys.time(), session_uuid = NA_character_, 
[10:55:40.549]             version = "1.8"), class = "FutureResult")
[10:55:40.549]     }, finally = {
[10:55:40.549]         if (!identical(...future.workdir, getwd())) 
[10:55:40.549]             setwd(...future.workdir)
[10:55:40.549]         {
[10:55:40.549]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[10:55:40.549]                 ...future.oldOptions$nwarnings <- NULL
[10:55:40.549]             }
[10:55:40.549]             base::options(...future.oldOptions)
[10:55:40.549]             if (.Platform$OS.type == "windows") {
[10:55:40.549]                 old_names <- names(...future.oldEnvVars)
[10:55:40.549]                 envs <- base::Sys.getenv()
[10:55:40.549]                 names <- names(envs)
[10:55:40.549]                 common <- intersect(names, old_names)
[10:55:40.549]                 added <- setdiff(names, old_names)
[10:55:40.549]                 removed <- setdiff(old_names, names)
[10:55:40.549]                 changed <- common[...future.oldEnvVars[common] != 
[10:55:40.549]                   envs[common]]
[10:55:40.549]                 NAMES <- toupper(changed)
[10:55:40.549]                 args <- list()
[10:55:40.549]                 for (kk in seq_along(NAMES)) {
[10:55:40.549]                   name <- changed[[kk]]
[10:55:40.549]                   NAME <- NAMES[[kk]]
[10:55:40.549]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.549]                     next
[10:55:40.549]                   args[[name]] <- ...future.oldEnvVars[[name]]
[10:55:40.549]                 }
[10:55:40.549]                 NAMES <- toupper(added)
[10:55:40.549]                 for (kk in seq_along(NAMES)) {
[10:55:40.549]                   name <- added[[kk]]
[10:55:40.549]                   NAME <- NAMES[[kk]]
[10:55:40.549]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.549]                     next
[10:55:40.549]                   args[[name]] <- ""
[10:55:40.549]                 }
[10:55:40.549]                 NAMES <- toupper(removed)
[10:55:40.549]                 for (kk in seq_along(NAMES)) {
[10:55:40.549]                   name <- removed[[kk]]
[10:55:40.549]                   NAME <- NAMES[[kk]]
[10:55:40.549]                   if (name != NAME && is.element(NAME, old_names)) 
[10:55:40.549]                     next
[10:55:40.549]                   args[[name]] <- ...future.oldEnvVars[[name]]
[10:55:40.549]                 }
[10:55:40.549]                 if (length(args) > 0) 
[10:55:40.549]                   base::do.call(base::Sys.setenv, args = args)
[10:55:40.549]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[10:55:40.549]             }
[10:55:40.549]             else {
[10:55:40.549]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[10:55:40.549]             }
[10:55:40.549]             {
[10:55:40.549]                 if (base::length(...future.futureOptionsAdded) > 
[10:55:40.549]                   0L) {
[10:55:40.549]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[10:55:40.549]                   base::names(opts) <- ...future.futureOptionsAdded
[10:55:40.549]                   base::options(opts)
[10:55:40.549]                 }
[10:55:40.549]                 {
[10:55:40.549]                   NULL
[10:55:40.549]                   options(future.plan = NULL)
[10:55:40.549]                   if (is.na(NA_character_)) 
[10:55:40.549]                     Sys.unsetenv("R_FUTURE_PLAN")
[10:55:40.549]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[10:55:40.549]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[10:55:40.549]                     .init = FALSE)
[10:55:40.549]                 }
[10:55:40.549]             }
[10:55:40.549]         }
[10:55:40.549]     })
[10:55:40.549]     if (TRUE) {
[10:55:40.549]         base::sink(type = "output", split = FALSE)
[10:55:40.549]         if (TRUE) {
[10:55:40.549]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[10:55:40.549]         }
[10:55:40.549]         else {
[10:55:40.549]             ...future.result["stdout"] <- base::list(NULL)
[10:55:40.549]         }
[10:55:40.549]         base::close(...future.stdout)
[10:55:40.549]         ...future.stdout <- NULL
[10:55:40.549]     }
[10:55:40.549]     ...future.result$conditions <- ...future.conditions
[10:55:40.549]     ...future.result$finished <- base::Sys.time()
[10:55:40.549]     ...future.result
[10:55:40.549] }
[10:55:40.556] - Launch lazy future ... done
[10:55:40.556] run() for 'MiraiFuture' ... done
[10:55:40.556] - run() ... done
[10:55:40.557] - resolved() ...
[10:55:40.557] resolved() for 'MiraiFuture' ...
[10:55:40.557] - state: 'running'
[10:55:40.558] - run: TRUE
[10:55:40.558] - result: 'NULL'
[10:55:40.558] - resolved: FALSE
[10:55:40.559] resolved() for 'MiraiFuture' ... done
[10:55:40.559] - resolved: FALSE
[10:55:40.559] - resolved() ... done
[10:55:40.559] resolved() for 'MiraiFuture' ... done
[10:55:40.560] resolved() for 'MiraiFuture' ...
[10:55:40.560] - state: 'running'
[10:55:40.560] - run: TRUE
[10:55:40.561] - result: 'NULL'
[10:55:40.561] - resolved: FALSE
[10:55:40.561] resolved() for 'MiraiFuture' ... done
Plotting tile #1 of 4 ...
[10:55:40.562] signalConditions() ...
[10:55:40.562]  - include = 'immediateCondition'
[10:55:40.563]  - exclude = 
[10:55:40.563]  - resignal = FALSE
[10:55:40.563]  - Number of conditions: 2
[10:55:40.564] signalConditions() ... done
[10:55:40.564] Future state: 'finished'
[10:55:40.564] signalConditions() ...
[10:55:40.564]  - include = 'condition'
[10:55:40.565]  - exclude = 'immediateCondition'
[10:55:40.565]  - resignal = TRUE
[10:55:40.565]  - Number of conditions: 2
[10:55:40.566]  - Condition #1: 'simpleMessage', 'message', 'condition'
Calculating tile #1 of 4 ...[10:55:40.566]  - Condition #2: 'simpleMessage', 'message', 'condition'
 done
[10:55:40.566] signalConditions() ... done
[10:55:40.569] resolved() for 'MiraiFuture' ...
[10:55:40.570] - state: 'running'
[10:55:40.570] - run: TRUE
[10:55:40.570] - result: 'NULL'
[10:55:40.570] - resolved: FALSE
[10:55:40.571] resolved() for 'MiraiFuture' ... done
Plotting tile #2 of 4 ...
[10:55:40.572] signalConditions() ...
[10:55:40.575]  - include = 'immediateCondition'
[10:55:40.575]  - exclude = 
[10:55:40.575]  - resignal = FALSE
[10:55:40.576]  - Number of conditions: 2
[10:55:40.576] signalConditions() ... done
[10:55:40.576] Future state: 'finished'
[10:55:40.577] signalConditions() ...
[10:55:40.577]  - include = 'condition'
[10:55:40.577]  - exclude = 'immediateCondition'
[10:55:40.577]  - resignal = TRUE
[10:55:40.578]  - Number of conditions: 2
[10:55:40.578]  - Condition #1: 'simpleMessage', 'message', 'condition'
Calculating tile #2 of 4 ...[10:55:40.578]  - Condition #2: 'simpleMessage', 'message', 'condition'
 done
[10:55:40.579] signalConditions() ... done
[10:55:40.580] resolved() for 'MiraiFuture' ...
[10:55:40.580] - state: 'running'
[10:55:40.580] - run: TRUE
[10:55:40.581] - result: 'NULL'
[10:55:40.581] - resolved: FALSE
[10:55:40.581] resolved() for 'MiraiFuture' ... done
[10:55:40.582] resolved() for 'MiraiFuture' ...
[10:55:40.582] - state: 'running'
[10:55:40.582] - run: TRUE
[10:55:40.583] - result: 'NULL'
[10:55:40.583] - resolved: FALSE
[10:55:40.583] resolved() for 'MiraiFuture' ... done
[10:55:40.584] resolved() for 'MiraiFuture' ...
[10:55:40.584] - state: 'running'
[10:55:40.584] - run: TRUE
[10:55:40.585] - result: 'NULL'
[10:55:40.585] - resolved: FALSE
[10:55:40.585] resolved() for 'MiraiFuture' ... done
[10:55:40.585] resolved() for 'MiraiFuture' ...
[10:55:40.586] - state: 'running'
[10:55:40.586] - run: TRUE
[10:55:40.586] - result: 'NULL'
[10:55:40.587] - resolved: FALSE
[10:55:40.587] resolved() for 'MiraiFuture' ... done
[10:55:40.587] resolved() for 'MiraiFuture' ...
[10:55:40.588] - state: 'running'
[10:55:40.588] - run: TRUE
[10:55:40.588] - result: 'NULL'
[10:55:40.588] - resolved: FALSE
[10:55:40.589] resolved() for 'MiraiFuture' ... done
[10:55:40.589] resolved() for 'MiraiFuture' ...
[10:55:40.589] - state: 'running'
[10:55:40.590] - run: TRUE
[10:55:40.590] - result: 'NULL'
[10:55:40.590] - resolved: FALSE
[10:55:40.590] resolved() for 'MiraiFuture' ... done
[10:55:40.591] resolved() for 'MiraiFuture' ...
[10:55:40.591] - state: 'running'
[10:55:40.591] - run: TRUE
[10:55:40.592] - result: 'NULL'
[10:55:40.592] - resolved: FALSE
[10:55:40.592] resolved() for 'MiraiFuture' ... done
Plotting tile #3 of 4 ...
[10:55:40.593] signalConditions() ...
[10:55:40.593]  - include = 'immediateCondition'
[10:55:40.594]  - exclude = 
[10:55:40.594]  - resignal = FALSE
[10:55:40.594]  - Number of conditions: 2
[10:55:40.594] signalConditions() ... done
[10:55:40.595] Future state: 'finished'
[10:55:40.595] signalConditions() ...
[10:55:40.595]  - include = 'condition'
[10:55:40.596]  - exclude = 'immediateCondition'
[10:55:40.596]  - resignal = TRUE
[10:55:40.596]  - Number of conditions: 2
[10:55:40.596]  - Condition #1: 'simpleMessage', 'message', 'condition'
Calculating tile #3 of 4 ...[10:55:40.597]  - Condition #2: 'simpleMessage', 'message', 'condition'
 done
[10:55:40.597] signalConditions() ... done
[10:55:40.598] resolved() for 'MiraiFuture' ...
[10:55:40.598] - state: 'running'
[10:55:40.599] - run: TRUE
[10:55:40.599] - result: 'NULL'
[10:55:40.599] - resolved: FALSE
[10:55:40.600] resolved() for 'MiraiFuture' ... done
[10:55:40.600] resolved() for 'MiraiFuture' ...
[10:55:40.600] - state: 'running'
[10:55:40.601] - run: TRUE
[10:55:40.601] - result: 'NULL'
[10:55:40.601] - resolved: FALSE
[10:55:40.601] resolved() for 'MiraiFuture' ... done
[10:55:40.602] resolved() for 'MiraiFuture' ...
[10:55:40.602] - state: 'running'
[10:55:40.602] - run: TRUE
[10:55:40.603] - result: 'NULL'
[10:55:40.603] - resolved: FALSE
[10:55:40.603] resolved() for 'MiraiFuture' ... done
Plotting tile #4 of 4 ...
[10:55:40.604] signalConditions() ...
[10:55:40.604]  - include = 'immediateCondition'
[10:55:40.605]  - exclude = 
[10:55:40.605]  - resignal = FALSE
[10:55:40.605]  - Number of conditions: 2
[10:55:40.605] signalConditions() ... done
[10:55:40.606] Future state: 'finished'
[10:55:40.606] signalConditions() ...
[10:55:40.606]  - include = 'condition'
[10:55:40.607]  - exclude = 'immediateCondition'
[10:55:40.607]  - resignal = TRUE
[10:55:40.607]  - Number of conditions: 2
[10:55:40.607]  - Condition #1: 'simpleMessage', 'message', 'condition'
Calculating tile #4 of 4 ...[10:55:40.608]  - Condition #2: 'simpleMessage', 'message', 'condition'
 done
[10:55:40.608] signalConditions() ... done

> close.screen()
[1] 1 2 3 4

> message("SUGGESTION: Try to rerun this demo after changing strategy for how futures are resolved, e.g. plan(multisession).\n")
SUGGESTION: Try to rerun this demo after changing strategy for how futures are resolved, e.g. plan(multisession).

> 
> message("*** Demos ... DONE")
*** Demos ... DONE
> 
> source("incl/end.R")
> 
> proc.time()
   user  system elapsed 
   0.59    0.17    1.31