R Under development (unstable) (2024-07-02 r86866 ucrt) -- "Unsuffered Consequences"
Copyright (C) 2024 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64

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

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

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

> source("incl/start.R")
Loading required package: future
[13:30:36.557] plan(): Setting new future strategy stack:
[13:30:36.558] List of future strategies:
[13:30:36.558] 1. mirai_multisession:
[13:30:36.558]    - args: function (expr, substitute = TRUE, envir = parent.frame(), ..., workers = availableCores())
[13:30:36.558]    - tweaked: FALSE
[13:30:36.558]    - call: future::plan(future.mirai::mirai_multisession)
[13:30:36.571] plan(): plan_init() of 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function' ...
[13:30:36.571] < mirai [$data] >
[13:30:36.576] getGlobalsAndPackages() ...
[13:30:36.576] Not searching for globals
[13:30:36.576] - globals: [0] <none>
[13:30:36.577] getGlobalsAndPackages() ... DONE
[13:30:36.577] getGlobalsAndPackages() ...
[13:30:36.577] 
[13:30:36.577] - globals: [0] <none>
[13:30:36.578] getGlobalsAndPackages() ... DONE
[13:30:36.833] Packages needed by the future expression (n = 0): <none>
[13:30:36.833] Packages needed by future strategies (n = 0): <none>
[13:30:36.834] {
[13:30:36.834]     {
[13:30:36.834]         {
[13:30:36.834]             ...future.startTime <- base::Sys.time()
[13:30:36.834]             {
[13:30:36.834]                 {
[13:30:36.834]                   {
[13:30:36.834]                     base::local({
[13:30:36.834]                       has_future <- base::requireNamespace("future", 
[13:30:36.834]                         quietly = TRUE)
[13:30:36.834]                       if (has_future) {
[13:30:36.834]                         ns <- base::getNamespace("future")
[13:30:36.834]                         version <- ns[[".package"]][["version"]]
[13:30:36.834]                         if (is.null(version)) 
[13:30:36.834]                           version <- utils::packageVersion("future")
[13:30:36.834]                       }
[13:30:36.834]                       else {
[13:30:36.834]                         version <- NULL
[13:30:36.834]                       }
[13:30:36.834]                       if (!has_future || version < "1.8.0") {
[13:30:36.834]                         info <- base::c(r_version = base::gsub("R version ", 
[13:30:36.834]                           "", base::R.version$version.string), 
[13:30:36.834]                           platform = base::sprintf("%s (%s-bit)", 
[13:30:36.834]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[13:30:36.834]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[13:30:36.834]                             "release", "version")], collapse = " "), 
[13:30:36.834]                           hostname = base::Sys.info()[["nodename"]])
[13:30:36.834]                         info <- base::sprintf("%s: %s", base::names(info), 
[13:30:36.834]                           info)
[13:30:36.834]                         info <- base::paste(info, collapse = "; ")
[13:30:36.834]                         if (!has_future) {
[13:30:36.834]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[13:30:36.834]                             info)
[13:30:36.834]                         }
[13:30:36.834]                         else {
[13:30:36.834]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[13:30:36.834]                             info, version)
[13:30:36.834]                         }
[13:30:36.834]                         base::stop(msg)
[13:30:36.834]                       }
[13:30:36.834]                     })
[13:30:36.834]                   }
[13:30:36.834]                   ...future.strategy.old <- future::plan("list")
[13:30:36.834]                   options(future.plan = NULL)
[13:30:36.834]                   Sys.unsetenv("R_FUTURE_PLAN")
[13:30:36.834]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[13:30:36.834]                 }
[13:30:36.834]                 ...future.workdir <- getwd()
[13:30:36.834]             }
[13:30:36.834]             ...future.oldOptions <- base::as.list(base::.Options)
[13:30:36.834]             ...future.oldEnvVars <- base::Sys.getenv()
[13:30:36.834]         }
[13:30:36.834]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[13:30:36.834]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[13:30:36.834]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[13:30:36.834]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[13:30:36.834]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[13:30:36.834]             future.stdout.windows.reencode = NULL, width = 80L)
[13:30:36.834]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[13:30:36.834]             base::names(...future.oldOptions))
[13:30:36.834]     }
[13:30:36.834]     if (FALSE) {
[13:30:36.834]     }
[13:30:36.834]     else {
[13:30:36.834]         if (TRUE) {
[13:30:36.834]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[13:30:36.834]                 open = "w")
[13:30:36.834]         }
[13:30:36.834]         else {
[13:30:36.834]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[13:30:36.834]                 windows = "NUL", "/dev/null"), open = "w")
[13:30:36.834]         }
[13:30:36.834]         base::sink(...future.stdout, type = "output", split = FALSE)
[13:30:36.834]         base::on.exit(if (!base::is.null(...future.stdout)) {
[13:30:36.834]             base::sink(type = "output", split = FALSE)
[13:30:36.834]             base::close(...future.stdout)
[13:30:36.834]         }, add = TRUE)
[13:30:36.834]     }
[13:30:36.834]     ...future.frame <- base::sys.nframe()
[13:30:36.834]     ...future.conditions <- base::list()
[13:30:36.834]     ...future.rng <- base::globalenv()$.Random.seed
[13:30:36.834]     if (FALSE) {
[13:30:36.834]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[13:30:36.834]             "...future.value", "...future.globalenv.names", ".Random.seed")
[13:30:36.834]     }
[13:30:36.834]     ...future.result <- base::tryCatch({
[13:30:36.834]         base::withCallingHandlers({
[13:30:36.834]             ...future.value <- base::withVisible(base::local(NA))
[13:30:36.834]             future::FutureResult(value = ...future.value$value, 
[13:30:36.834]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[13:30:36.834]                   ...future.rng), globalenv = if (FALSE) 
[13:30:36.834]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[13:30:36.834]                     ...future.globalenv.names))
[13:30:36.834]                 else NULL, started = ...future.startTime, version = "1.8")
[13:30:36.834]         }, condition = base::local({
[13:30:36.834]             c <- base::c
[13:30:36.834]             inherits <- base::inherits
[13:30:36.834]             invokeRestart <- base::invokeRestart
[13:30:36.834]             length <- base::length
[13:30:36.834]             list <- base::list
[13:30:36.834]             seq.int <- base::seq.int
[13:30:36.834]             signalCondition <- base::signalCondition
[13:30:36.834]             sys.calls <- base::sys.calls
[13:30:36.834]             `[[` <- base::`[[`
[13:30:36.834]             `+` <- base::`+`
[13:30:36.834]             `<<-` <- base::`<<-`
[13:30:36.834]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[13:30:36.834]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[13:30:36.834]                   3L)]
[13:30:36.834]             }
[13:30:36.834]             function(cond) {
[13:30:36.834]                 is_error <- inherits(cond, "error")
[13:30:36.834]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[13:30:36.834]                   NULL)
[13:30:36.834]                 if (is_error) {
[13:30:36.834]                   sessionInformation <- function() {
[13:30:36.834]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[13:30:36.834]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[13:30:36.834]                       search = base::search(), system = base::Sys.info())
[13:30:36.834]                   }
[13:30:36.834]                   ...future.conditions[[length(...future.conditions) + 
[13:30:36.834]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[13:30:36.834]                     cond$call), session = sessionInformation(), 
[13:30:36.834]                     timestamp = base::Sys.time(), signaled = 0L)
[13:30:36.834]                   signalCondition(cond)
[13:30:36.834]                 }
[13:30:36.834]                 else if (!ignore && TRUE && inherits(cond, "condition")) {
[13:30:36.834]                   signal <- FALSE && inherits(cond, character(0))
[13:30:36.834]                   ...future.conditions[[length(...future.conditions) + 
[13:30:36.834]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[13:30:36.834]                   if (FALSE && !signal) {
[13:30:36.834]                     muffleCondition <- function (cond, pattern = "^muffle") 
[13:30:36.834]                     {
[13:30:36.834]                       inherits <- base::inherits
[13:30:36.834]                       invokeRestart <- base::invokeRestart
[13:30:36.834]                       is.null <- base::is.null
[13:30:36.834]                       muffled <- FALSE
[13:30:36.834]                       if (inherits(cond, "message")) {
[13:30:36.834]                         muffled <- grepl(pattern, "muffleMessage")
[13:30:36.834]                         if (muffled) 
[13:30:36.834]                           invokeRestart("muffleMessage")
[13:30:36.834]                       }
[13:30:36.834]                       else if (inherits(cond, "warning")) {
[13:30:36.834]                         muffled <- grepl(pattern, "muffleWarning")
[13:30:36.834]                         if (muffled) 
[13:30:36.834]                           invokeRestart("muffleWarning")
[13:30:36.834]                       }
[13:30:36.834]                       else if (inherits(cond, "condition")) {
[13:30:36.834]                         if (!is.null(pattern)) {
[13:30:36.834]                           computeRestarts <- base::computeRestarts
[13:30:36.834]                           grepl <- base::grepl
[13:30:36.834]                           restarts <- computeRestarts(cond)
[13:30:36.834]                           for (restart in restarts) {
[13:30:36.834]                             name <- restart$name
[13:30:36.834]                             if (is.null(name)) 
[13:30:36.834]                               next
[13:30:36.834]                             if (!grepl(pattern, name)) 
[13:30:36.834]                               next
[13:30:36.834]                             invokeRestart(restart)
[13:30:36.834]                             muffled <- TRUE
[13:30:36.834]                             break
[13:30:36.834]                           }
[13:30:36.834]                         }
[13:30:36.834]                       }
[13:30:36.834]                       invisible(muffled)
[13:30:36.834]                     }
[13:30:36.834]                     muffleCondition(cond, pattern = "^muffle")
[13:30:36.834]                   }
[13:30:36.834]                 }
[13:30:36.834]                 else {
[13:30:36.834]                   if (TRUE) {
[13:30:36.834]                     muffleCondition <- function (cond, pattern = "^muffle") 
[13:30:36.834]                     {
[13:30:36.834]                       inherits <- base::inherits
[13:30:36.834]                       invokeRestart <- base::invokeRestart
[13:30:36.834]                       is.null <- base::is.null
[13:30:36.834]                       muffled <- FALSE
[13:30:36.834]                       if (inherits(cond, "message")) {
[13:30:36.834]                         muffled <- grepl(pattern, "muffleMessage")
[13:30:36.834]                         if (muffled) 
[13:30:36.834]                           invokeRestart("muffleMessage")
[13:30:36.834]                       }
[13:30:36.834]                       else if (inherits(cond, "warning")) {
[13:30:36.834]                         muffled <- grepl(pattern, "muffleWarning")
[13:30:36.834]                         if (muffled) 
[13:30:36.834]                           invokeRestart("muffleWarning")
[13:30:36.834]                       }
[13:30:36.834]                       else if (inherits(cond, "condition")) {
[13:30:36.834]                         if (!is.null(pattern)) {
[13:30:36.834]                           computeRestarts <- base::computeRestarts
[13:30:36.834]                           grepl <- base::grepl
[13:30:36.834]                           restarts <- computeRestarts(cond)
[13:30:36.834]                           for (restart in restarts) {
[13:30:36.834]                             name <- restart$name
[13:30:36.834]                             if (is.null(name)) 
[13:30:36.834]                               next
[13:30:36.834]                             if (!grepl(pattern, name)) 
[13:30:36.834]                               next
[13:30:36.834]                             invokeRestart(restart)
[13:30:36.834]                             muffled <- TRUE
[13:30:36.834]                             break
[13:30:36.834]                           }
[13:30:36.834]                         }
[13:30:36.834]                       }
[13:30:36.834]                       invisible(muffled)
[13:30:36.834]                     }
[13:30:36.834]                     muffleCondition(cond, pattern = "^muffle")
[13:30:36.834]                   }
[13:30:36.834]                 }
[13:30:36.834]             }
[13:30:36.834]         }))
[13:30:36.834]     }, error = function(ex) {
[13:30:36.834]         base::structure(base::list(value = NULL, visible = NULL, 
[13:30:36.834]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[13:30:36.834]                 ...future.rng), started = ...future.startTime, 
[13:30:36.834]             finished = Sys.time(), session_uuid = NA_character_, 
[13:30:36.834]             version = "1.8"), class = "FutureResult")
[13:30:36.834]     }, finally = {
[13:30:36.834]         if (!identical(...future.workdir, getwd())) 
[13:30:36.834]             setwd(...future.workdir)
[13:30:36.834]         {
[13:30:36.834]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[13:30:36.834]                 ...future.oldOptions$nwarnings <- NULL
[13:30:36.834]             }
[13:30:36.834]             base::options(...future.oldOptions)
[13:30:36.834]             if (.Platform$OS.type == "windows") {
[13:30:36.834]                 old_names <- names(...future.oldEnvVars)
[13:30:36.834]                 envs <- base::Sys.getenv()
[13:30:36.834]                 names <- names(envs)
[13:30:36.834]                 common <- intersect(names, old_names)
[13:30:36.834]                 added <- setdiff(names, old_names)
[13:30:36.834]                 removed <- setdiff(old_names, names)
[13:30:36.834]                 changed <- common[...future.oldEnvVars[common] != 
[13:30:36.834]                   envs[common]]
[13:30:36.834]                 NAMES <- toupper(changed)
[13:30:36.834]                 args <- list()
[13:30:36.834]                 for (kk in seq_along(NAMES)) {
[13:30:36.834]                   name <- changed[[kk]]
[13:30:36.834]                   NAME <- NAMES[[kk]]
[13:30:36.834]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:36.834]                     next
[13:30:36.834]                   args[[name]] <- ...future.oldEnvVars[[name]]
[13:30:36.834]                 }
[13:30:36.834]                 NAMES <- toupper(added)
[13:30:36.834]                 for (kk in seq_along(NAMES)) {
[13:30:36.834]                   name <- added[[kk]]
[13:30:36.834]                   NAME <- NAMES[[kk]]
[13:30:36.834]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:36.834]                     next
[13:30:36.834]                   args[[name]] <- ""
[13:30:36.834]                 }
[13:30:36.834]                 NAMES <- toupper(removed)
[13:30:36.834]                 for (kk in seq_along(NAMES)) {
[13:30:36.834]                   name <- removed[[kk]]
[13:30:36.834]                   NAME <- NAMES[[kk]]
[13:30:36.834]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:36.834]                     next
[13:30:36.834]                   args[[name]] <- ...future.oldEnvVars[[name]]
[13:30:36.834]                 }
[13:30:36.834]                 if (length(args) > 0) 
[13:30:36.834]                   base::do.call(base::Sys.setenv, args = args)
[13:30:36.834]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[13:30:36.834]             }
[13:30:36.834]             else {
[13:30:36.834]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[13:30:36.834]             }
[13:30:36.834]             {
[13:30:36.834]                 if (base::length(...future.futureOptionsAdded) > 
[13:30:36.834]                   0L) {
[13:30:36.834]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[13:30:36.834]                   base::names(opts) <- ...future.futureOptionsAdded
[13:30:36.834]                   base::options(opts)
[13:30:36.834]                 }
[13:30:36.834]                 {
[13:30:36.834]                   NULL
[13:30:36.834]                   options(future.plan = NULL)
[13:30:36.834]                   if (is.na(NA_character_)) 
[13:30:36.834]                     Sys.unsetenv("R_FUTURE_PLAN")
[13:30:36.834]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[13:30:36.834]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[13:30:36.834]                     .init = FALSE)
[13:30:36.834]                 }
[13:30:36.834]             }
[13:30:36.834]         }
[13:30:36.834]     })
[13:30:36.834]     if (TRUE) {
[13:30:36.834]         base::sink(type = "output", split = FALSE)
[13:30:36.834]         if (TRUE) {
[13:30:36.834]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[13:30:36.834]         }
[13:30:36.834]         else {
[13:30:36.834]             ...future.result["stdout"] <- base::list(NULL)
[13:30:36.834]         }
[13:30:36.834]         base::close(...future.stdout)
[13:30:36.834]         ...future.stdout <- NULL
[13:30:36.834]     }
[13:30:36.834]     ...future.result$conditions <- ...future.conditions
[13:30:36.834]     ...future.result$finished <- base::Sys.time()
[13:30:36.834]     ...future.result
[13:30:36.834] }
[13:30:36.954] plan(): plan_init() of 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function' ... DONE
[13:30:36.954] plan(): nbrOfWorkers() = 2
> 
> options(future.demo.mandelbrot.nrow = 2L)
> options(future.demo.mandelbrot.resolution = 50L)
> options(future.demo.mandelbrot.delay = FALSE)
> 
> message("*** Demos ...")
*** Demos ...
> 
> message("*** Mandelbrot demo of the 'future' package ...")
*** Mandelbrot demo of the 'future' package ...
> 
> plan(mirai_multisession, workers = 2)
[13:30:36.956] plan(): Setting new future strategy stack:
[13:30:36.956] List of future strategies:
[13:30:36.956] 1. mirai_multisession:
[13:30:36.956]    - args: function (..., workers = 2, envir = parent.frame())
[13:30:36.956]    - tweaked: TRUE
[13:30:36.956]    - call: plan(mirai_multisession, workers = 2)
[13:30:36.970] plan(): plan_init() of 'tweaked', 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function' ...
[13:30:36.970] < mirai [$data] >
[13:30:36.970] getGlobalsAndPackages() ...
[13:30:36.971] Not searching for globals
[13:30:36.971] - globals: [0] <none>
[13:30:36.971] getGlobalsAndPackages() ... DONE
[13:30:36.971] getGlobalsAndPackages() ...
[13:30:36.971] 
[13:30:36.971] - globals: [0] <none>
[13:30:36.972] getGlobalsAndPackages() ... DONE
[13:30:36.972] Packages needed by the future expression (n = 0): <none>
[13:30:36.972] Packages needed by future strategies (n = 0): <none>
[13:30:36.973] {
[13:30:36.973]     {
[13:30:36.973]         {
[13:30:36.973]             ...future.startTime <- base::Sys.time()
[13:30:36.973]             {
[13:30:36.973]                 {
[13:30:36.973]                   {
[13:30:36.973]                     base::local({
[13:30:36.973]                       has_future <- base::requireNamespace("future", 
[13:30:36.973]                         quietly = TRUE)
[13:30:36.973]                       if (has_future) {
[13:30:36.973]                         ns <- base::getNamespace("future")
[13:30:36.973]                         version <- ns[[".package"]][["version"]]
[13:30:36.973]                         if (is.null(version)) 
[13:30:36.973]                           version <- utils::packageVersion("future")
[13:30:36.973]                       }
[13:30:36.973]                       else {
[13:30:36.973]                         version <- NULL
[13:30:36.973]                       }
[13:30:36.973]                       if (!has_future || version < "1.8.0") {
[13:30:36.973]                         info <- base::c(r_version = base::gsub("R version ", 
[13:30:36.973]                           "", base::R.version$version.string), 
[13:30:36.973]                           platform = base::sprintf("%s (%s-bit)", 
[13:30:36.973]                             base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[13:30:36.973]                           os = base::paste(base::Sys.info()[base::c("sysname", 
[13:30:36.973]                             "release", "version")], collapse = " "), 
[13:30:36.973]                           hostname = base::Sys.info()[["nodename"]])
[13:30:36.973]                         info <- base::sprintf("%s: %s", base::names(info), 
[13:30:36.973]                           info)
[13:30:36.973]                         info <- base::paste(info, collapse = "; ")
[13:30:36.973]                         if (!has_future) {
[13:30:36.973]                           msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[13:30:36.973]                             info)
[13:30:36.973]                         }
[13:30:36.973]                         else {
[13:30:36.973]                           msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[13:30:36.973]                             info, version)
[13:30:36.973]                         }
[13:30:36.973]                         base::stop(msg)
[13:30:36.973]                       }
[13:30:36.973]                     })
[13:30:36.973]                   }
[13:30:36.973]                   ...future.strategy.old <- future::plan("list")
[13:30:36.973]                   options(future.plan = NULL)
[13:30:36.973]                   Sys.unsetenv("R_FUTURE_PLAN")
[13:30:36.973]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[13:30:36.973]                 }
[13:30:36.973]                 ...future.workdir <- getwd()
[13:30:36.973]             }
[13:30:36.973]             ...future.oldOptions <- base::as.list(base::.Options)
[13:30:36.973]             ...future.oldEnvVars <- base::Sys.getenv()
[13:30:36.973]         }
[13:30:36.973]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[13:30:36.973]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[13:30:36.973]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[13:30:36.973]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[13:30:36.973]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[13:30:36.973]             future.stdout.windows.reencode = NULL, width = 80L)
[13:30:36.973]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[13:30:36.973]             base::names(...future.oldOptions))
[13:30:36.973]     }
[13:30:36.973]     if (FALSE) {
[13:30:36.973]     }
[13:30:36.973]     else {
[13:30:36.973]         if (TRUE) {
[13:30:36.973]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[13:30:36.973]                 open = "w")
[13:30:36.973]         }
[13:30:36.973]         else {
[13:30:36.973]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[13:30:36.973]                 windows = "NUL", "/dev/null"), open = "w")
[13:30:36.973]         }
[13:30:36.973]         base::sink(...future.stdout, type = "output", split = FALSE)
[13:30:36.973]         base::on.exit(if (!base::is.null(...future.stdout)) {
[13:30:36.973]             base::sink(type = "output", split = FALSE)
[13:30:36.973]             base::close(...future.stdout)
[13:30:36.973]         }, add = TRUE)
[13:30:36.973]     }
[13:30:36.973]     ...future.frame <- base::sys.nframe()
[13:30:36.973]     ...future.conditions <- base::list()
[13:30:36.973]     ...future.rng <- base::globalenv()$.Random.seed
[13:30:36.973]     if (FALSE) {
[13:30:36.973]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[13:30:36.973]             "...future.value", "...future.globalenv.names", ".Random.seed")
[13:30:36.973]     }
[13:30:36.973]     ...future.result <- base::tryCatch({
[13:30:36.973]         base::withCallingHandlers({
[13:30:36.973]             ...future.value <- base::withVisible(base::local(NA))
[13:30:36.973]             future::FutureResult(value = ...future.value$value, 
[13:30:36.973]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[13:30:36.973]                   ...future.rng), globalenv = if (FALSE) 
[13:30:36.973]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[13:30:36.973]                     ...future.globalenv.names))
[13:30:36.973]                 else NULL, started = ...future.startTime, version = "1.8")
[13:30:36.973]         }, condition = base::local({
[13:30:36.973]             c <- base::c
[13:30:36.973]             inherits <- base::inherits
[13:30:36.973]             invokeRestart <- base::invokeRestart
[13:30:36.973]             length <- base::length
[13:30:36.973]             list <- base::list
[13:30:36.973]             seq.int <- base::seq.int
[13:30:36.973]             signalCondition <- base::signalCondition
[13:30:36.973]             sys.calls <- base::sys.calls
[13:30:36.973]             `[[` <- base::`[[`
[13:30:36.973]             `+` <- base::`+`
[13:30:36.973]             `<<-` <- base::`<<-`
[13:30:36.973]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[13:30:36.973]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[13:30:36.973]                   3L)]
[13:30:36.973]             }
[13:30:36.973]             function(cond) {
[13:30:36.973]                 is_error <- inherits(cond, "error")
[13:30:36.973]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[13:30:36.973]                   NULL)
[13:30:36.973]                 if (is_error) {
[13:30:36.973]                   sessionInformation <- function() {
[13:30:36.973]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[13:30:36.973]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[13:30:36.973]                       search = base::search(), system = base::Sys.info())
[13:30:36.973]                   }
[13:30:36.973]                   ...future.conditions[[length(...future.conditions) + 
[13:30:36.973]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[13:30:36.973]                     cond$call), session = sessionInformation(), 
[13:30:36.973]                     timestamp = base::Sys.time(), signaled = 0L)
[13:30:36.973]                   signalCondition(cond)
[13:30:36.973]                 }
[13:30:36.973]                 else if (!ignore && TRUE && inherits(cond, "condition")) {
[13:30:36.973]                   signal <- FALSE && inherits(cond, character(0))
[13:30:36.973]                   ...future.conditions[[length(...future.conditions) + 
[13:30:36.973]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[13:30:36.973]                   if (FALSE && !signal) {
[13:30:36.973]                     muffleCondition <- function (cond, pattern = "^muffle") 
[13:30:36.973]                     {
[13:30:36.973]                       inherits <- base::inherits
[13:30:36.973]                       invokeRestart <- base::invokeRestart
[13:30:36.973]                       is.null <- base::is.null
[13:30:36.973]                       muffled <- FALSE
[13:30:36.973]                       if (inherits(cond, "message")) {
[13:30:36.973]                         muffled <- grepl(pattern, "muffleMessage")
[13:30:36.973]                         if (muffled) 
[13:30:36.973]                           invokeRestart("muffleMessage")
[13:30:36.973]                       }
[13:30:36.973]                       else if (inherits(cond, "warning")) {
[13:30:36.973]                         muffled <- grepl(pattern, "muffleWarning")
[13:30:36.973]                         if (muffled) 
[13:30:36.973]                           invokeRestart("muffleWarning")
[13:30:36.973]                       }
[13:30:36.973]                       else if (inherits(cond, "condition")) {
[13:30:36.973]                         if (!is.null(pattern)) {
[13:30:36.973]                           computeRestarts <- base::computeRestarts
[13:30:36.973]                           grepl <- base::grepl
[13:30:36.973]                           restarts <- computeRestarts(cond)
[13:30:36.973]                           for (restart in restarts) {
[13:30:36.973]                             name <- restart$name
[13:30:36.973]                             if (is.null(name)) 
[13:30:36.973]                               next
[13:30:36.973]                             if (!grepl(pattern, name)) 
[13:30:36.973]                               next
[13:30:36.973]                             invokeRestart(restart)
[13:30:36.973]                             muffled <- TRUE
[13:30:36.973]                             break
[13:30:36.973]                           }
[13:30:36.973]                         }
[13:30:36.973]                       }
[13:30:36.973]                       invisible(muffled)
[13:30:36.973]                     }
[13:30:36.973]                     muffleCondition(cond, pattern = "^muffle")
[13:30:36.973]                   }
[13:30:36.973]                 }
[13:30:36.973]                 else {
[13:30:36.973]                   if (TRUE) {
[13:30:36.973]                     muffleCondition <- function (cond, pattern = "^muffle") 
[13:30:36.973]                     {
[13:30:36.973]                       inherits <- base::inherits
[13:30:36.973]                       invokeRestart <- base::invokeRestart
[13:30:36.973]                       is.null <- base::is.null
[13:30:36.973]                       muffled <- FALSE
[13:30:36.973]                       if (inherits(cond, "message")) {
[13:30:36.973]                         muffled <- grepl(pattern, "muffleMessage")
[13:30:36.973]                         if (muffled) 
[13:30:36.973]                           invokeRestart("muffleMessage")
[13:30:36.973]                       }
[13:30:36.973]                       else if (inherits(cond, "warning")) {
[13:30:36.973]                         muffled <- grepl(pattern, "muffleWarning")
[13:30:36.973]                         if (muffled) 
[13:30:36.973]                           invokeRestart("muffleWarning")
[13:30:36.973]                       }
[13:30:36.973]                       else if (inherits(cond, "condition")) {
[13:30:36.973]                         if (!is.null(pattern)) {
[13:30:36.973]                           computeRestarts <- base::computeRestarts
[13:30:36.973]                           grepl <- base::grepl
[13:30:36.973]                           restarts <- computeRestarts(cond)
[13:30:36.973]                           for (restart in restarts) {
[13:30:36.973]                             name <- restart$name
[13:30:36.973]                             if (is.null(name)) 
[13:30:36.973]                               next
[13:30:36.973]                             if (!grepl(pattern, name)) 
[13:30:36.973]                               next
[13:30:36.973]                             invokeRestart(restart)
[13:30:36.973]                             muffled <- TRUE
[13:30:36.973]                             break
[13:30:36.973]                           }
[13:30:36.973]                         }
[13:30:36.973]                       }
[13:30:36.973]                       invisible(muffled)
[13:30:36.973]                     }
[13:30:36.973]                     muffleCondition(cond, pattern = "^muffle")
[13:30:36.973]                   }
[13:30:36.973]                 }
[13:30:36.973]             }
[13:30:36.973]         }))
[13:30:36.973]     }, error = function(ex) {
[13:30:36.973]         base::structure(base::list(value = NULL, visible = NULL, 
[13:30:36.973]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[13:30:36.973]                 ...future.rng), started = ...future.startTime, 
[13:30:36.973]             finished = Sys.time(), session_uuid = NA_character_, 
[13:30:36.973]             version = "1.8"), class = "FutureResult")
[13:30:36.973]     }, finally = {
[13:30:36.973]         if (!identical(...future.workdir, getwd())) 
[13:30:36.973]             setwd(...future.workdir)
[13:30:36.973]         {
[13:30:36.973]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[13:30:36.973]                 ...future.oldOptions$nwarnings <- NULL
[13:30:36.973]             }
[13:30:36.973]             base::options(...future.oldOptions)
[13:30:36.973]             if (.Platform$OS.type == "windows") {
[13:30:36.973]                 old_names <- names(...future.oldEnvVars)
[13:30:36.973]                 envs <- base::Sys.getenv()
[13:30:36.973]                 names <- names(envs)
[13:30:36.973]                 common <- intersect(names, old_names)
[13:30:36.973]                 added <- setdiff(names, old_names)
[13:30:36.973]                 removed <- setdiff(old_names, names)
[13:30:36.973]                 changed <- common[...future.oldEnvVars[common] != 
[13:30:36.973]                   envs[common]]
[13:30:36.973]                 NAMES <- toupper(changed)
[13:30:36.973]                 args <- list()
[13:30:36.973]                 for (kk in seq_along(NAMES)) {
[13:30:36.973]                   name <- changed[[kk]]
[13:30:36.973]                   NAME <- NAMES[[kk]]
[13:30:36.973]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:36.973]                     next
[13:30:36.973]                   args[[name]] <- ...future.oldEnvVars[[name]]
[13:30:36.973]                 }
[13:30:36.973]                 NAMES <- toupper(added)
[13:30:36.973]                 for (kk in seq_along(NAMES)) {
[13:30:36.973]                   name <- added[[kk]]
[13:30:36.973]                   NAME <- NAMES[[kk]]
[13:30:36.973]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:36.973]                     next
[13:30:36.973]                   args[[name]] <- ""
[13:30:36.973]                 }
[13:30:36.973]                 NAMES <- toupper(removed)
[13:30:36.973]                 for (kk in seq_along(NAMES)) {
[13:30:36.973]                   name <- removed[[kk]]
[13:30:36.973]                   NAME <- NAMES[[kk]]
[13:30:36.973]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:36.973]                     next
[13:30:36.973]                   args[[name]] <- ...future.oldEnvVars[[name]]
[13:30:36.973]                 }
[13:30:36.973]                 if (length(args) > 0) 
[13:30:36.973]                   base::do.call(base::Sys.setenv, args = args)
[13:30:36.973]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[13:30:36.973]             }
[13:30:36.973]             else {
[13:30:36.973]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[13:30:36.973]             }
[13:30:36.973]             {
[13:30:36.973]                 if (base::length(...future.futureOptionsAdded) > 
[13:30:36.973]                   0L) {
[13:30:36.973]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[13:30:36.973]                   base::names(opts) <- ...future.futureOptionsAdded
[13:30:36.973]                   base::options(opts)
[13:30:36.973]                 }
[13:30:36.973]                 {
[13:30:36.973]                   NULL
[13:30:36.973]                   options(future.plan = NULL)
[13:30:36.973]                   if (is.na(NA_character_)) 
[13:30:36.973]                     Sys.unsetenv("R_FUTURE_PLAN")
[13:30:36.973]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[13:30:36.973]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[13:30:36.973]                     .init = FALSE)
[13:30:36.973]                 }
[13:30:36.973]             }
[13:30:36.973]         }
[13:30:36.973]     })
[13:30:36.973]     if (TRUE) {
[13:30:36.973]         base::sink(type = "output", split = FALSE)
[13:30:36.973]         if (TRUE) {
[13:30:36.973]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[13:30:36.973]         }
[13:30:36.973]         else {
[13:30:36.973]             ...future.result["stdout"] <- base::list(NULL)
[13:30:36.973]         }
[13:30:36.973]         base::close(...future.stdout)
[13:30:36.973]         ...future.stdout <- NULL
[13:30:36.973]     }
[13:30:36.973]     ...future.result$conditions <- ...future.conditions
[13:30:36.973]     ...future.result$finished <- base::Sys.time()
[13:30:36.973]     ...future.result
[13:30:36.973] }
[13:30:37.093] plan(): plan_init() of 'tweaked', 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function' ... DONE
[13:30:37.093] 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[13:30:37.147] getGlobalsAndPackages() ...
[13:30:37.148] Searching for globals...
[13:30:37.158] - globals found: [9] '{', 'message', 'sprintf', 'ii', 'n', '<-', 'mandelbrot', 'C', 'delay'
[13:30:37.159] Searching for globals ... DONE
[13:30:37.159] Resolving globals: FALSE
[13:30:37.160] The total size of the 4 globals is 14.24 KiB (14584 bytes)
[13:30:37.161] 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')
[13:30:37.161] - globals: [4] 'ii', 'n', 'C', 'delay'
[13:30:37.161] - packages: [1] 'future'
[13:30:37.162] getGlobalsAndPackages() ... DONE
 2[13:30:37.166] getGlobalsAndPackages() ...
[13:30:37.166] Searching for globals...
[13:30:37.172] - globals found: [9] '{', 'message', 'sprintf', 'ii', 'n', '<-', 'mandelbrot', 'C', 'delay'
[13:30:37.172] Searching for globals ... DONE
[13:30:37.173] Resolving globals: FALSE
[13:30:37.173] The total size of the 4 globals is 14.24 KiB (14584 bytes)
[13:30:37.174] 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')
[13:30:37.174] - globals: [4] 'ii', 'n', 'C', 'delay'
[13:30:37.174] - packages: [1] 'future'
[13:30:37.174] getGlobalsAndPackages() ... DONE
 3[13:30:37.175] getGlobalsAndPackages() ...
[13:30:37.175] Searching for globals...
[13:30:37.179] - globals found: [9] '{', 'message', 'sprintf', 'ii', 'n', '<-', 'mandelbrot', 'C', 'delay'
[13:30:37.179] Searching for globals ... DONE
[13:30:37.179] Resolving globals: FALSE
[13:30:37.180] The total size of the 4 globals is 14.24 KiB (14584 bytes)
[13:30:37.181] 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')
[13:30:37.181] - globals: [4] 'ii', 'n', 'C', 'delay'
[13:30:37.181] - packages: [1] 'future'
[13:30:37.181] getGlobalsAndPackages() ... DONE
 4[13:30:37.182] getGlobalsAndPackages() ...
[13:30:37.182] Searching for globals...
[13:30:37.186] - globals found: [9] '{', 'message', 'sprintf', 'ii', 'n', '<-', 'mandelbrot', 'C', 'delay'
[13:30:37.186] Searching for globals ... DONE
[13:30:37.186] Resolving globals: FALSE
[13:30:37.187] The total size of the 4 globals is 14.24 KiB (14584 bytes)
[13:30:37.187] 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')
[13:30:37.188] - globals: [4] 'ii', 'n', 'C', 'delay'
[13:30:37.188] - packages: [1] 'future'
[13:30:37.188] getGlobalsAndPackages() ... DONE

> message(".")
.

> ## Calculate and plot tiles
> repeat {
+   counts <- plot_what_is_done(counts)
+   if (!any(sapply(counts, FUN = inherits, "Future"))) break
+ }
[13:30:37.199] resolved() for 'Future' ...
[13:30:37.199] - state: 'created'
[13:30:37.199] - run: TRUE
[13:30:37.200] - run() ...
[13:30:37.200] run() for 'Future' ...
[13:30:37.200] - state: 'created'
[13:30:37.200] - Future backend: 'FutureStrategy', 'tweaked', 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function'
[13:30:37.201] - Future class: 'MiraiFuture', 'MultiprocessFuture', 'Future', 'environment'
[13:30:37.201] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ...
[13:30:37.201]   - Field: 'label'
[13:30:37.201]   - Field: 'local'
[13:30:37.202]   - Field: 'owner'
[13:30:37.202]   - Field: 'envir'
[13:30:37.202]   - Field: 'packages'
[13:30:37.202]   - Field: 'gc'
[13:30:37.202]   - Field: 'conditions'
[13:30:37.202]   - Field: 'expr'
[13:30:37.203]   - Field: 'uuid'
[13:30:37.203]   - Field: 'seed'
[13:30:37.203]   - Field: 'version'
[13:30:37.203]   - Field: 'result'
[13:30:37.203]   - Field: 'asynchronous'
[13:30:37.203]   - Field: 'calls'
[13:30:37.204]   - Field: 'globals'
[13:30:37.204]   - Field: 'stdout'
[13:30:37.204]   - Field: 'earlySignal'
[13:30:37.204]   - Field: 'lazy'
[13:30:37.204]   - Field: 'state'
[13:30:37.204]   - Field: '.cluster'
[13:30:37.205] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ... done
[13:30:37.205] - Launch lazy future ...
[13:30:37.205] Packages needed by the future expression (n = 1): 'future'
[13:30:37.205] Packages needed by future strategies (n = 0): <none>
[13:30:37.206] {
[13:30:37.206]     {
[13:30:37.206]         {
[13:30:37.206]             ...future.startTime <- base::Sys.time()
[13:30:37.206]             {
[13:30:37.206]                 {
[13:30:37.206]                   {
[13:30:37.206]                     {
[13:30:37.206]                       base::local({
[13:30:37.206]                         has_future <- base::requireNamespace("future", 
[13:30:37.206]                           quietly = TRUE)
[13:30:37.206]                         if (has_future) {
[13:30:37.206]                           ns <- base::getNamespace("future")
[13:30:37.206]                           version <- ns[[".package"]][["version"]]
[13:30:37.206]                           if (is.null(version)) 
[13:30:37.206]                             version <- utils::packageVersion("future")
[13:30:37.206]                         }
[13:30:37.206]                         else {
[13:30:37.206]                           version <- NULL
[13:30:37.206]                         }
[13:30:37.206]                         if (!has_future || version < "1.8.0") {
[13:30:37.206]                           info <- base::c(r_version = base::gsub("R version ", 
[13:30:37.206]                             "", base::R.version$version.string), 
[13:30:37.206]                             platform = base::sprintf("%s (%s-bit)", 
[13:30:37.206]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[13:30:37.206]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[13:30:37.206]                               "release", "version")], collapse = " "), 
[13:30:37.206]                             hostname = base::Sys.info()[["nodename"]])
[13:30:37.206]                           info <- base::sprintf("%s: %s", base::names(info), 
[13:30:37.206]                             info)
[13:30:37.206]                           info <- base::paste(info, collapse = "; ")
[13:30:37.206]                           if (!has_future) {
[13:30:37.206]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[13:30:37.206]                               info)
[13:30:37.206]                           }
[13:30:37.206]                           else {
[13:30:37.206]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[13:30:37.206]                               info, version)
[13:30:37.206]                           }
[13:30:37.206]                           base::stop(msg)
[13:30:37.206]                         }
[13:30:37.206]                       })
[13:30:37.206]                     }
[13:30:37.206]                     base::local({
[13:30:37.206]                       for (pkg in "future") {
[13:30:37.206]                         base::loadNamespace(pkg)
[13:30:37.206]                         base::library(pkg, character.only = TRUE)
[13:30:37.206]                       }
[13:30:37.206]                     })
[13:30:37.206]                   }
[13:30:37.206]                   ...future.strategy.old <- future::plan("list")
[13:30:37.206]                   options(future.plan = NULL)
[13:30:37.206]                   Sys.unsetenv("R_FUTURE_PLAN")
[13:30:37.206]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[13:30:37.206]                 }
[13:30:37.206]                 ...future.workdir <- getwd()
[13:30:37.206]             }
[13:30:37.206]             ...future.oldOptions <- base::as.list(base::.Options)
[13:30:37.206]             ...future.oldEnvVars <- base::Sys.getenv()
[13:30:37.206]         }
[13:30:37.206]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[13:30:37.206]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[13:30:37.206]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[13:30:37.206]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[13:30:37.206]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[13:30:37.206]             future.stdout.windows.reencode = NULL, width = 80L)
[13:30:37.206]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[13:30:37.206]             base::names(...future.oldOptions))
[13:30:37.206]     }
[13:30:37.206]     if (FALSE) {
[13:30:37.206]     }
[13:30:37.206]     else {
[13:30:37.206]         if (TRUE) {
[13:30:37.206]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[13:30:37.206]                 open = "w")
[13:30:37.206]         }
[13:30:37.206]         else {
[13:30:37.206]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[13:30:37.206]                 windows = "NUL", "/dev/null"), open = "w")
[13:30:37.206]         }
[13:30:37.206]         base::sink(...future.stdout, type = "output", split = FALSE)
[13:30:37.206]         base::on.exit(if (!base::is.null(...future.stdout)) {
[13:30:37.206]             base::sink(type = "output", split = FALSE)
[13:30:37.206]             base::close(...future.stdout)
[13:30:37.206]         }, add = TRUE)
[13:30:37.206]     }
[13:30:37.206]     ...future.frame <- base::sys.nframe()
[13:30:37.206]     ...future.conditions <- base::list()
[13:30:37.206]     ...future.rng <- base::globalenv()$.Random.seed
[13:30:37.206]     if (FALSE) {
[13:30:37.206]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[13:30:37.206]             "...future.value", "...future.globalenv.names", ".Random.seed")
[13:30:37.206]     }
[13:30:37.206]     ...future.result <- base::tryCatch({
[13:30:37.206]         base::withCallingHandlers({
[13:30:37.206]             ...future.value <- base::withVisible(base::local({
[13:30:37.206]                 message(sprintf("Calculating tile #%d of %d ...", 
[13:30:37.206]                   ii, n), appendLF = FALSE)
[13:30:37.206]                 fit <- mandelbrot(C)
[13:30:37.206]                 delay(fit)
[13:30:37.206]                 message(" done")
[13:30:37.206]                 fit
[13:30:37.206]             }))
[13:30:37.206]             future::FutureResult(value = ...future.value$value, 
[13:30:37.206]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[13:30:37.206]                   ...future.rng), globalenv = if (FALSE) 
[13:30:37.206]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[13:30:37.206]                     ...future.globalenv.names))
[13:30:37.206]                 else NULL, started = ...future.startTime, version = "1.8")
[13:30:37.206]         }, condition = base::local({
[13:30:37.206]             c <- base::c
[13:30:37.206]             inherits <- base::inherits
[13:30:37.206]             invokeRestart <- base::invokeRestart
[13:30:37.206]             length <- base::length
[13:30:37.206]             list <- base::list
[13:30:37.206]             seq.int <- base::seq.int
[13:30:37.206]             signalCondition <- base::signalCondition
[13:30:37.206]             sys.calls <- base::sys.calls
[13:30:37.206]             `[[` <- base::`[[`
[13:30:37.206]             `+` <- base::`+`
[13:30:37.206]             `<<-` <- base::`<<-`
[13:30:37.206]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[13:30:37.206]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[13:30:37.206]                   3L)]
[13:30:37.206]             }
[13:30:37.206]             function(cond) {
[13:30:37.206]                 is_error <- inherits(cond, "error")
[13:30:37.206]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[13:30:37.206]                   NULL)
[13:30:37.206]                 if (is_error) {
[13:30:37.206]                   sessionInformation <- function() {
[13:30:37.206]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[13:30:37.206]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[13:30:37.206]                       search = base::search(), system = base::Sys.info())
[13:30:37.206]                   }
[13:30:37.206]                   ...future.conditions[[length(...future.conditions) + 
[13:30:37.206]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[13:30:37.206]                     cond$call), session = sessionInformation(), 
[13:30:37.206]                     timestamp = base::Sys.time(), signaled = 0L)
[13:30:37.206]                   signalCondition(cond)
[13:30:37.206]                 }
[13:30:37.206]                 else if (!ignore && TRUE && inherits(cond, "condition")) {
[13:30:37.206]                   signal <- FALSE && inherits(cond, character(0))
[13:30:37.206]                   ...future.conditions[[length(...future.conditions) + 
[13:30:37.206]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[13:30:37.206]                   if (FALSE && !signal) {
[13:30:37.206]                     muffleCondition <- function (cond, pattern = "^muffle") 
[13:30:37.206]                     {
[13:30:37.206]                       inherits <- base::inherits
[13:30:37.206]                       invokeRestart <- base::invokeRestart
[13:30:37.206]                       is.null <- base::is.null
[13:30:37.206]                       muffled <- FALSE
[13:30:37.206]                       if (inherits(cond, "message")) {
[13:30:37.206]                         muffled <- grepl(pattern, "muffleMessage")
[13:30:37.206]                         if (muffled) 
[13:30:37.206]                           invokeRestart("muffleMessage")
[13:30:37.206]                       }
[13:30:37.206]                       else if (inherits(cond, "warning")) {
[13:30:37.206]                         muffled <- grepl(pattern, "muffleWarning")
[13:30:37.206]                         if (muffled) 
[13:30:37.206]                           invokeRestart("muffleWarning")
[13:30:37.206]                       }
[13:30:37.206]                       else if (inherits(cond, "condition")) {
[13:30:37.206]                         if (!is.null(pattern)) {
[13:30:37.206]                           computeRestarts <- base::computeRestarts
[13:30:37.206]                           grepl <- base::grepl
[13:30:37.206]                           restarts <- computeRestarts(cond)
[13:30:37.206]                           for (restart in restarts) {
[13:30:37.206]                             name <- restart$name
[13:30:37.206]                             if (is.null(name)) 
[13:30:37.206]                               next
[13:30:37.206]                             if (!grepl(pattern, name)) 
[13:30:37.206]                               next
[13:30:37.206]                             invokeRestart(restart)
[13:30:37.206]                             muffled <- TRUE
[13:30:37.206]                             break
[13:30:37.206]                           }
[13:30:37.206]                         }
[13:30:37.206]                       }
[13:30:37.206]                       invisible(muffled)
[13:30:37.206]                     }
[13:30:37.206]                     muffleCondition(cond, pattern = "^muffle")
[13:30:37.206]                   }
[13:30:37.206]                 }
[13:30:37.206]                 else {
[13:30:37.206]                   if (TRUE) {
[13:30:37.206]                     muffleCondition <- function (cond, pattern = "^muffle") 
[13:30:37.206]                     {
[13:30:37.206]                       inherits <- base::inherits
[13:30:37.206]                       invokeRestart <- base::invokeRestart
[13:30:37.206]                       is.null <- base::is.null
[13:30:37.206]                       muffled <- FALSE
[13:30:37.206]                       if (inherits(cond, "message")) {
[13:30:37.206]                         muffled <- grepl(pattern, "muffleMessage")
[13:30:37.206]                         if (muffled) 
[13:30:37.206]                           invokeRestart("muffleMessage")
[13:30:37.206]                       }
[13:30:37.206]                       else if (inherits(cond, "warning")) {
[13:30:37.206]                         muffled <- grepl(pattern, "muffleWarning")
[13:30:37.206]                         if (muffled) 
[13:30:37.206]                           invokeRestart("muffleWarning")
[13:30:37.206]                       }
[13:30:37.206]                       else if (inherits(cond, "condition")) {
[13:30:37.206]                         if (!is.null(pattern)) {
[13:30:37.206]                           computeRestarts <- base::computeRestarts
[13:30:37.206]                           grepl <- base::grepl
[13:30:37.206]                           restarts <- computeRestarts(cond)
[13:30:37.206]                           for (restart in restarts) {
[13:30:37.206]                             name <- restart$name
[13:30:37.206]                             if (is.null(name)) 
[13:30:37.206]                               next
[13:30:37.206]                             if (!grepl(pattern, name)) 
[13:30:37.206]                               next
[13:30:37.206]                             invokeRestart(restart)
[13:30:37.206]                             muffled <- TRUE
[13:30:37.206]                             break
[13:30:37.206]                           }
[13:30:37.206]                         }
[13:30:37.206]                       }
[13:30:37.206]                       invisible(muffled)
[13:30:37.206]                     }
[13:30:37.206]                     muffleCondition(cond, pattern = "^muffle")
[13:30:37.206]                   }
[13:30:37.206]                 }
[13:30:37.206]             }
[13:30:37.206]         }))
[13:30:37.206]     }, error = function(ex) {
[13:30:37.206]         base::structure(base::list(value = NULL, visible = NULL, 
[13:30:37.206]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[13:30:37.206]                 ...future.rng), started = ...future.startTime, 
[13:30:37.206]             finished = Sys.time(), session_uuid = NA_character_, 
[13:30:37.206]             version = "1.8"), class = "FutureResult")
[13:30:37.206]     }, finally = {
[13:30:37.206]         if (!identical(...future.workdir, getwd())) 
[13:30:37.206]             setwd(...future.workdir)
[13:30:37.206]         {
[13:30:37.206]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[13:30:37.206]                 ...future.oldOptions$nwarnings <- NULL
[13:30:37.206]             }
[13:30:37.206]             base::options(...future.oldOptions)
[13:30:37.206]             if (.Platform$OS.type == "windows") {
[13:30:37.206]                 old_names <- names(...future.oldEnvVars)
[13:30:37.206]                 envs <- base::Sys.getenv()
[13:30:37.206]                 names <- names(envs)
[13:30:37.206]                 common <- intersect(names, old_names)
[13:30:37.206]                 added <- setdiff(names, old_names)
[13:30:37.206]                 removed <- setdiff(old_names, names)
[13:30:37.206]                 changed <- common[...future.oldEnvVars[common] != 
[13:30:37.206]                   envs[common]]
[13:30:37.206]                 NAMES <- toupper(changed)
[13:30:37.206]                 args <- list()
[13:30:37.206]                 for (kk in seq_along(NAMES)) {
[13:30:37.206]                   name <- changed[[kk]]
[13:30:37.206]                   NAME <- NAMES[[kk]]
[13:30:37.206]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:37.206]                     next
[13:30:37.206]                   args[[name]] <- ...future.oldEnvVars[[name]]
[13:30:37.206]                 }
[13:30:37.206]                 NAMES <- toupper(added)
[13:30:37.206]                 for (kk in seq_along(NAMES)) {
[13:30:37.206]                   name <- added[[kk]]
[13:30:37.206]                   NAME <- NAMES[[kk]]
[13:30:37.206]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:37.206]                     next
[13:30:37.206]                   args[[name]] <- ""
[13:30:37.206]                 }
[13:30:37.206]                 NAMES <- toupper(removed)
[13:30:37.206]                 for (kk in seq_along(NAMES)) {
[13:30:37.206]                   name <- removed[[kk]]
[13:30:37.206]                   NAME <- NAMES[[kk]]
[13:30:37.206]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:37.206]                     next
[13:30:37.206]                   args[[name]] <- ...future.oldEnvVars[[name]]
[13:30:37.206]                 }
[13:30:37.206]                 if (length(args) > 0) 
[13:30:37.206]                   base::do.call(base::Sys.setenv, args = args)
[13:30:37.206]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[13:30:37.206]             }
[13:30:37.206]             else {
[13:30:37.206]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[13:30:37.206]             }
[13:30:37.206]             {
[13:30:37.206]                 if (base::length(...future.futureOptionsAdded) > 
[13:30:37.206]                   0L) {
[13:30:37.206]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[13:30:37.206]                   base::names(opts) <- ...future.futureOptionsAdded
[13:30:37.206]                   base::options(opts)
[13:30:37.206]                 }
[13:30:37.206]                 {
[13:30:37.206]                   NULL
[13:30:37.206]                   options(future.plan = NULL)
[13:30:37.206]                   if (is.na(NA_character_)) 
[13:30:37.206]                     Sys.unsetenv("R_FUTURE_PLAN")
[13:30:37.206]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[13:30:37.206]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[13:30:37.206]                     .init = FALSE)
[13:30:37.206]                 }
[13:30:37.206]             }
[13:30:37.206]         }
[13:30:37.206]     })
[13:30:37.206]     if (TRUE) {
[13:30:37.206]         base::sink(type = "output", split = FALSE)
[13:30:37.206]         if (TRUE) {
[13:30:37.206]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[13:30:37.206]         }
[13:30:37.206]         else {
[13:30:37.206]             ...future.result["stdout"] <- base::list(NULL)
[13:30:37.206]         }
[13:30:37.206]         base::close(...future.stdout)
[13:30:37.206]         ...future.stdout <- NULL
[13:30:37.206]     }
[13:30:37.206]     ...future.result$conditions <- ...future.conditions
[13:30:37.206]     ...future.result$finished <- base::Sys.time()
[13:30:37.206]     ...future.result
[13:30:37.206] }
[13:30:37.210] - Launch lazy future ... done
[13:30:37.210] run() for 'MiraiFuture' ... done
[13:30:37.210] - run() ... done
[13:30:37.210] - resolved() ...
[13:30:37.211] resolved() for 'MiraiFuture' ...
[13:30:37.211] - state: 'running'
[13:30:37.211] - run: TRUE
[13:30:37.211] - result: 'NULL'
[13:30:37.211] - resolved: FALSE
[13:30:37.212] resolved() for 'MiraiFuture' ... done
[13:30:37.212] - resolved: FALSE
[13:30:37.212] - resolved() ... done
[13:30:37.212] resolved() for 'MiraiFuture' ... done
[13:30:37.212] resolved() for 'Future' ...
[13:30:37.213] - state: 'created'
[13:30:37.213] - run: TRUE
[13:30:37.213] - run() ...
[13:30:37.213] run() for 'Future' ...
[13:30:37.213] - state: 'created'
[13:30:37.213] - Future backend: 'FutureStrategy', 'tweaked', 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function'
[13:30:37.214] - Future class: 'MiraiFuture', 'MultiprocessFuture', 'Future', 'environment'
[13:30:37.214] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ...
[13:30:37.214]   - Field: 'label'
[13:30:37.214]   - Field: 'local'
[13:30:37.215]   - Field: 'owner'
[13:30:37.215]   - Field: 'envir'
[13:30:37.215]   - Field: 'packages'
[13:30:37.215]   - Field: 'gc'
[13:30:37.215]   - Field: 'conditions'
[13:30:37.215]   - Field: 'expr'
[13:30:37.216]   - Field: 'uuid'
[13:30:37.216]   - Field: 'seed'
[13:30:37.216]   - Field: 'version'
[13:30:37.216]   - Field: 'result'
[13:30:37.216]   - Field: 'asynchronous'
[13:30:37.218]   - Field: 'calls'
[13:30:37.218]   - Field: 'globals'
[13:30:37.218]   - Field: 'stdout'
[13:30:37.218]   - Field: 'earlySignal'
[13:30:37.218]   - Field: 'lazy'
[13:30:37.218]   - Field: 'state'
[13:30:37.219]   - Field: '.cluster'
[13:30:37.219] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ... done
[13:30:37.219] - Launch lazy future ...
[13:30:37.219] Packages needed by the future expression (n = 1): 'future'
[13:30:37.219] Packages needed by future strategies (n = 0): <none>
[13:30:37.220] {
[13:30:37.220]     {
[13:30:37.220]         {
[13:30:37.220]             ...future.startTime <- base::Sys.time()
[13:30:37.220]             {
[13:30:37.220]                 {
[13:30:37.220]                   {
[13:30:37.220]                     {
[13:30:37.220]                       base::local({
[13:30:37.220]                         has_future <- base::requireNamespace("future", 
[13:30:37.220]                           quietly = TRUE)
[13:30:37.220]                         if (has_future) {
[13:30:37.220]                           ns <- base::getNamespace("future")
[13:30:37.220]                           version <- ns[[".package"]][["version"]]
[13:30:37.220]                           if (is.null(version)) 
[13:30:37.220]                             version <- utils::packageVersion("future")
[13:30:37.220]                         }
[13:30:37.220]                         else {
[13:30:37.220]                           version <- NULL
[13:30:37.220]                         }
[13:30:37.220]                         if (!has_future || version < "1.8.0") {
[13:30:37.220]                           info <- base::c(r_version = base::gsub("R version ", 
[13:30:37.220]                             "", base::R.version$version.string), 
[13:30:37.220]                             platform = base::sprintf("%s (%s-bit)", 
[13:30:37.220]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[13:30:37.220]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[13:30:37.220]                               "release", "version")], collapse = " "), 
[13:30:37.220]                             hostname = base::Sys.info()[["nodename"]])
[13:30:37.220]                           info <- base::sprintf("%s: %s", base::names(info), 
[13:30:37.220]                             info)
[13:30:37.220]                           info <- base::paste(info, collapse = "; ")
[13:30:37.220]                           if (!has_future) {
[13:30:37.220]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[13:30:37.220]                               info)
[13:30:37.220]                           }
[13:30:37.220]                           else {
[13:30:37.220]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[13:30:37.220]                               info, version)
[13:30:37.220]                           }
[13:30:37.220]                           base::stop(msg)
[13:30:37.220]                         }
[13:30:37.220]                       })
[13:30:37.220]                     }
[13:30:37.220]                     base::local({
[13:30:37.220]                       for (pkg in "future") {
[13:30:37.220]                         base::loadNamespace(pkg)
[13:30:37.220]                         base::library(pkg, character.only = TRUE)
[13:30:37.220]                       }
[13:30:37.220]                     })
[13:30:37.220]                   }
[13:30:37.220]                   ...future.strategy.old <- future::plan("list")
[13:30:37.220]                   options(future.plan = NULL)
[13:30:37.220]                   Sys.unsetenv("R_FUTURE_PLAN")
[13:30:37.220]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[13:30:37.220]                 }
[13:30:37.220]                 ...future.workdir <- getwd()
[13:30:37.220]             }
[13:30:37.220]             ...future.oldOptions <- base::as.list(base::.Options)
[13:30:37.220]             ...future.oldEnvVars <- base::Sys.getenv()
[13:30:37.220]         }
[13:30:37.220]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[13:30:37.220]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[13:30:37.220]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[13:30:37.220]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[13:30:37.220]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[13:30:37.220]             future.stdout.windows.reencode = NULL, width = 80L)
[13:30:37.220]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[13:30:37.220]             base::names(...future.oldOptions))
[13:30:37.220]     }
[13:30:37.220]     if (FALSE) {
[13:30:37.220]     }
[13:30:37.220]     else {
[13:30:37.220]         if (TRUE) {
[13:30:37.220]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[13:30:37.220]                 open = "w")
[13:30:37.220]         }
[13:30:37.220]         else {
[13:30:37.220]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[13:30:37.220]                 windows = "NUL", "/dev/null"), open = "w")
[13:30:37.220]         }
[13:30:37.220]         base::sink(...future.stdout, type = "output", split = FALSE)
[13:30:37.220]         base::on.exit(if (!base::is.null(...future.stdout)) {
[13:30:37.220]             base::sink(type = "output", split = FALSE)
[13:30:37.220]             base::close(...future.stdout)
[13:30:37.220]         }, add = TRUE)
[13:30:37.220]     }
[13:30:37.220]     ...future.frame <- base::sys.nframe()
[13:30:37.220]     ...future.conditions <- base::list()
[13:30:37.220]     ...future.rng <- base::globalenv()$.Random.seed
[13:30:37.220]     if (FALSE) {
[13:30:37.220]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[13:30:37.220]             "...future.value", "...future.globalenv.names", ".Random.seed")
[13:30:37.220]     }
[13:30:37.220]     ...future.result <- base::tryCatch({
[13:30:37.220]         base::withCallingHandlers({
[13:30:37.220]             ...future.value <- base::withVisible(base::local({
[13:30:37.220]                 message(sprintf("Calculating tile #%d of %d ...", 
[13:30:37.220]                   ii, n), appendLF = FALSE)
[13:30:37.220]                 fit <- mandelbrot(C)
[13:30:37.220]                 delay(fit)
[13:30:37.220]                 message(" done")
[13:30:37.220]                 fit
[13:30:37.220]             }))
[13:30:37.220]             future::FutureResult(value = ...future.value$value, 
[13:30:37.220]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[13:30:37.220]                   ...future.rng), globalenv = if (FALSE) 
[13:30:37.220]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[13:30:37.220]                     ...future.globalenv.names))
[13:30:37.220]                 else NULL, started = ...future.startTime, version = "1.8")
[13:30:37.220]         }, condition = base::local({
[13:30:37.220]             c <- base::c
[13:30:37.220]             inherits <- base::inherits
[13:30:37.220]             invokeRestart <- base::invokeRestart
[13:30:37.220]             length <- base::length
[13:30:37.220]             list <- base::list
[13:30:37.220]             seq.int <- base::seq.int
[13:30:37.220]             signalCondition <- base::signalCondition
[13:30:37.220]             sys.calls <- base::sys.calls
[13:30:37.220]             `[[` <- base::`[[`
[13:30:37.220]             `+` <- base::`+`
[13:30:37.220]             `<<-` <- base::`<<-`
[13:30:37.220]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[13:30:37.220]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[13:30:37.220]                   3L)]
[13:30:37.220]             }
[13:30:37.220]             function(cond) {
[13:30:37.220]                 is_error <- inherits(cond, "error")
[13:30:37.220]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[13:30:37.220]                   NULL)
[13:30:37.220]                 if (is_error) {
[13:30:37.220]                   sessionInformation <- function() {
[13:30:37.220]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[13:30:37.220]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[13:30:37.220]                       search = base::search(), system = base::Sys.info())
[13:30:37.220]                   }
[13:30:37.220]                   ...future.conditions[[length(...future.conditions) + 
[13:30:37.220]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[13:30:37.220]                     cond$call), session = sessionInformation(), 
[13:30:37.220]                     timestamp = base::Sys.time(), signaled = 0L)
[13:30:37.220]                   signalCondition(cond)
[13:30:37.220]                 }
[13:30:37.220]                 else if (!ignore && TRUE && inherits(cond, "condition")) {
[13:30:37.220]                   signal <- FALSE && inherits(cond, character(0))
[13:30:37.220]                   ...future.conditions[[length(...future.conditions) + 
[13:30:37.220]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[13:30:37.220]                   if (FALSE && !signal) {
[13:30:37.220]                     muffleCondition <- function (cond, pattern = "^muffle") 
[13:30:37.220]                     {
[13:30:37.220]                       inherits <- base::inherits
[13:30:37.220]                       invokeRestart <- base::invokeRestart
[13:30:37.220]                       is.null <- base::is.null
[13:30:37.220]                       muffled <- FALSE
[13:30:37.220]                       if (inherits(cond, "message")) {
[13:30:37.220]                         muffled <- grepl(pattern, "muffleMessage")
[13:30:37.220]                         if (muffled) 
[13:30:37.220]                           invokeRestart("muffleMessage")
[13:30:37.220]                       }
[13:30:37.220]                       else if (inherits(cond, "warning")) {
[13:30:37.220]                         muffled <- grepl(pattern, "muffleWarning")
[13:30:37.220]                         if (muffled) 
[13:30:37.220]                           invokeRestart("muffleWarning")
[13:30:37.220]                       }
[13:30:37.220]                       else if (inherits(cond, "condition")) {
[13:30:37.220]                         if (!is.null(pattern)) {
[13:30:37.220]                           computeRestarts <- base::computeRestarts
[13:30:37.220]                           grepl <- base::grepl
[13:30:37.220]                           restarts <- computeRestarts(cond)
[13:30:37.220]                           for (restart in restarts) {
[13:30:37.220]                             name <- restart$name
[13:30:37.220]                             if (is.null(name)) 
[13:30:37.220]                               next
[13:30:37.220]                             if (!grepl(pattern, name)) 
[13:30:37.220]                               next
[13:30:37.220]                             invokeRestart(restart)
[13:30:37.220]                             muffled <- TRUE
[13:30:37.220]                             break
[13:30:37.220]                           }
[13:30:37.220]                         }
[13:30:37.220]                       }
[13:30:37.220]                       invisible(muffled)
[13:30:37.220]                     }
[13:30:37.220]                     muffleCondition(cond, pattern = "^muffle")
[13:30:37.220]                   }
[13:30:37.220]                 }
[13:30:37.220]                 else {
[13:30:37.220]                   if (TRUE) {
[13:30:37.220]                     muffleCondition <- function (cond, pattern = "^muffle") 
[13:30:37.220]                     {
[13:30:37.220]                       inherits <- base::inherits
[13:30:37.220]                       invokeRestart <- base::invokeRestart
[13:30:37.220]                       is.null <- base::is.null
[13:30:37.220]                       muffled <- FALSE
[13:30:37.220]                       if (inherits(cond, "message")) {
[13:30:37.220]                         muffled <- grepl(pattern, "muffleMessage")
[13:30:37.220]                         if (muffled) 
[13:30:37.220]                           invokeRestart("muffleMessage")
[13:30:37.220]                       }
[13:30:37.220]                       else if (inherits(cond, "warning")) {
[13:30:37.220]                         muffled <- grepl(pattern, "muffleWarning")
[13:30:37.220]                         if (muffled) 
[13:30:37.220]                           invokeRestart("muffleWarning")
[13:30:37.220]                       }
[13:30:37.220]                       else if (inherits(cond, "condition")) {
[13:30:37.220]                         if (!is.null(pattern)) {
[13:30:37.220]                           computeRestarts <- base::computeRestarts
[13:30:37.220]                           grepl <- base::grepl
[13:30:37.220]                           restarts <- computeRestarts(cond)
[13:30:37.220]                           for (restart in restarts) {
[13:30:37.220]                             name <- restart$name
[13:30:37.220]                             if (is.null(name)) 
[13:30:37.220]                               next
[13:30:37.220]                             if (!grepl(pattern, name)) 
[13:30:37.220]                               next
[13:30:37.220]                             invokeRestart(restart)
[13:30:37.220]                             muffled <- TRUE
[13:30:37.220]                             break
[13:30:37.220]                           }
[13:30:37.220]                         }
[13:30:37.220]                       }
[13:30:37.220]                       invisible(muffled)
[13:30:37.220]                     }
[13:30:37.220]                     muffleCondition(cond, pattern = "^muffle")
[13:30:37.220]                   }
[13:30:37.220]                 }
[13:30:37.220]             }
[13:30:37.220]         }))
[13:30:37.220]     }, error = function(ex) {
[13:30:37.220]         base::structure(base::list(value = NULL, visible = NULL, 
[13:30:37.220]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[13:30:37.220]                 ...future.rng), started = ...future.startTime, 
[13:30:37.220]             finished = Sys.time(), session_uuid = NA_character_, 
[13:30:37.220]             version = "1.8"), class = "FutureResult")
[13:30:37.220]     }, finally = {
[13:30:37.220]         if (!identical(...future.workdir, getwd())) 
[13:30:37.220]             setwd(...future.workdir)
[13:30:37.220]         {
[13:30:37.220]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[13:30:37.220]                 ...future.oldOptions$nwarnings <- NULL
[13:30:37.220]             }
[13:30:37.220]             base::options(...future.oldOptions)
[13:30:37.220]             if (.Platform$OS.type == "windows") {
[13:30:37.220]                 old_names <- names(...future.oldEnvVars)
[13:30:37.220]                 envs <- base::Sys.getenv()
[13:30:37.220]                 names <- names(envs)
[13:30:37.220]                 common <- intersect(names, old_names)
[13:30:37.220]                 added <- setdiff(names, old_names)
[13:30:37.220]                 removed <- setdiff(old_names, names)
[13:30:37.220]                 changed <- common[...future.oldEnvVars[common] != 
[13:30:37.220]                   envs[common]]
[13:30:37.220]                 NAMES <- toupper(changed)
[13:30:37.220]                 args <- list()
[13:30:37.220]                 for (kk in seq_along(NAMES)) {
[13:30:37.220]                   name <- changed[[kk]]
[13:30:37.220]                   NAME <- NAMES[[kk]]
[13:30:37.220]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:37.220]                     next
[13:30:37.220]                   args[[name]] <- ...future.oldEnvVars[[name]]
[13:30:37.220]                 }
[13:30:37.220]                 NAMES <- toupper(added)
[13:30:37.220]                 for (kk in seq_along(NAMES)) {
[13:30:37.220]                   name <- added[[kk]]
[13:30:37.220]                   NAME <- NAMES[[kk]]
[13:30:37.220]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:37.220]                     next
[13:30:37.220]                   args[[name]] <- ""
[13:30:37.220]                 }
[13:30:37.220]                 NAMES <- toupper(removed)
[13:30:37.220]                 for (kk in seq_along(NAMES)) {
[13:30:37.220]                   name <- removed[[kk]]
[13:30:37.220]                   NAME <- NAMES[[kk]]
[13:30:37.220]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:37.220]                     next
[13:30:37.220]                   args[[name]] <- ...future.oldEnvVars[[name]]
[13:30:37.220]                 }
[13:30:37.220]                 if (length(args) > 0) 
[13:30:37.220]                   base::do.call(base::Sys.setenv, args = args)
[13:30:37.220]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[13:30:37.220]             }
[13:30:37.220]             else {
[13:30:37.220]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[13:30:37.220]             }
[13:30:37.220]             {
[13:30:37.220]                 if (base::length(...future.futureOptionsAdded) > 
[13:30:37.220]                   0L) {
[13:30:37.220]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[13:30:37.220]                   base::names(opts) <- ...future.futureOptionsAdded
[13:30:37.220]                   base::options(opts)
[13:30:37.220]                 }
[13:30:37.220]                 {
[13:30:37.220]                   NULL
[13:30:37.220]                   options(future.plan = NULL)
[13:30:37.220]                   if (is.na(NA_character_)) 
[13:30:37.220]                     Sys.unsetenv("R_FUTURE_PLAN")
[13:30:37.220]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[13:30:37.220]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[13:30:37.220]                     .init = FALSE)
[13:30:37.220]                 }
[13:30:37.220]             }
[13:30:37.220]         }
[13:30:37.220]     })
[13:30:37.220]     if (TRUE) {
[13:30:37.220]         base::sink(type = "output", split = FALSE)
[13:30:37.220]         if (TRUE) {
[13:30:37.220]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[13:30:37.220]         }
[13:30:37.220]         else {
[13:30:37.220]             ...future.result["stdout"] <- base::list(NULL)
[13:30:37.220]         }
[13:30:37.220]         base::close(...future.stdout)
[13:30:37.220]         ...future.stdout <- NULL
[13:30:37.220]     }
[13:30:37.220]     ...future.result$conditions <- ...future.conditions
[13:30:37.220]     ...future.result$finished <- base::Sys.time()
[13:30:37.220]     ...future.result
[13:30:37.220] }
[13:30:37.224] - Launch lazy future ... done
[13:30:37.224] run() for 'MiraiFuture' ... done
[13:30:37.224] - run() ... done
[13:30:37.225] - resolved() ...
[13:30:37.225] resolved() for 'MiraiFuture' ...
[13:30:37.225] - state: 'running'
[13:30:37.225] - run: TRUE
[13:30:37.225] - result: 'NULL'
[13:30:37.225] - resolved: FALSE
[13:30:37.226] resolved() for 'MiraiFuture' ... done
[13:30:37.226] - resolved: FALSE
[13:30:37.226] - resolved() ... done
[13:30:37.226] resolved() for 'MiraiFuture' ... done
[13:30:37.226] resolved() for 'Future' ...
[13:30:37.227] - state: 'created'
[13:30:37.227] - run: TRUE
[13:30:37.227] - run() ...
[13:30:37.227] run() for 'Future' ...
[13:30:37.227] - state: 'created'
[13:30:37.227] - Future backend: 'FutureStrategy', 'tweaked', 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function'
[13:30:37.228] - Future class: 'MiraiFuture', 'MultiprocessFuture', 'Future', 'environment'
[13:30:37.228] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ...
[13:30:37.228]   - Field: 'label'
[13:30:37.228]   - Field: 'local'
[13:30:37.229]   - Field: 'owner'
[13:30:37.229]   - Field: 'envir'
[13:30:37.229]   - Field: 'packages'
[13:30:37.229]   - Field: 'gc'
[13:30:37.229]   - Field: 'conditions'
[13:30:37.229]   - Field: 'expr'
[13:30:37.230]   - Field: 'uuid'
[13:30:37.230]   - Field: 'seed'
[13:30:37.230]   - Field: 'version'
[13:30:37.230]   - Field: 'result'
[13:30:37.230]   - Field: 'asynchronous'
[13:30:37.230]   - Field: 'calls'
[13:30:37.231]   - Field: 'globals'
[13:30:37.231]   - Field: 'stdout'
[13:30:37.231]   - Field: 'earlySignal'
[13:30:37.231]   - Field: 'lazy'
[13:30:37.231]   - Field: 'state'
[13:30:37.231]   - Field: '.cluster'
[13:30:37.232] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ... done
[13:30:37.232] - Launch lazy future ...
[13:30:37.232] Packages needed by the future expression (n = 1): 'future'
[13:30:37.232] Packages needed by future strategies (n = 0): <none>
[13:30:37.233] {
[13:30:37.233]     {
[13:30:37.233]         {
[13:30:37.233]             ...future.startTime <- base::Sys.time()
[13:30:37.233]             {
[13:30:37.233]                 {
[13:30:37.233]                   {
[13:30:37.233]                     {
[13:30:37.233]                       base::local({
[13:30:37.233]                         has_future <- base::requireNamespace("future", 
[13:30:37.233]                           quietly = TRUE)
[13:30:37.233]                         if (has_future) {
[13:30:37.233]                           ns <- base::getNamespace("future")
[13:30:37.233]                           version <- ns[[".package"]][["version"]]
[13:30:37.233]                           if (is.null(version)) 
[13:30:37.233]                             version <- utils::packageVersion("future")
[13:30:37.233]                         }
[13:30:37.233]                         else {
[13:30:37.233]                           version <- NULL
[13:30:37.233]                         }
[13:30:37.233]                         if (!has_future || version < "1.8.0") {
[13:30:37.233]                           info <- base::c(r_version = base::gsub("R version ", 
[13:30:37.233]                             "", base::R.version$version.string), 
[13:30:37.233]                             platform = base::sprintf("%s (%s-bit)", 
[13:30:37.233]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[13:30:37.233]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[13:30:37.233]                               "release", "version")], collapse = " "), 
[13:30:37.233]                             hostname = base::Sys.info()[["nodename"]])
[13:30:37.233]                           info <- base::sprintf("%s: %s", base::names(info), 
[13:30:37.233]                             info)
[13:30:37.233]                           info <- base::paste(info, collapse = "; ")
[13:30:37.233]                           if (!has_future) {
[13:30:37.233]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[13:30:37.233]                               info)
[13:30:37.233]                           }
[13:30:37.233]                           else {
[13:30:37.233]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[13:30:37.233]                               info, version)
[13:30:37.233]                           }
[13:30:37.233]                           base::stop(msg)
[13:30:37.233]                         }
[13:30:37.233]                       })
[13:30:37.233]                     }
[13:30:37.233]                     base::local({
[13:30:37.233]                       for (pkg in "future") {
[13:30:37.233]                         base::loadNamespace(pkg)
[13:30:37.233]                         base::library(pkg, character.only = TRUE)
[13:30:37.233]                       }
[13:30:37.233]                     })
[13:30:37.233]                   }
[13:30:37.233]                   ...future.strategy.old <- future::plan("list")
[13:30:37.233]                   options(future.plan = NULL)
[13:30:37.233]                   Sys.unsetenv("R_FUTURE_PLAN")
[13:30:37.233]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[13:30:37.233]                 }
[13:30:37.233]                 ...future.workdir <- getwd()
[13:30:37.233]             }
[13:30:37.233]             ...future.oldOptions <- base::as.list(base::.Options)
[13:30:37.233]             ...future.oldEnvVars <- base::Sys.getenv()
[13:30:37.233]         }
[13:30:37.233]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[13:30:37.233]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[13:30:37.233]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[13:30:37.233]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[13:30:37.233]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[13:30:37.233]             future.stdout.windows.reencode = NULL, width = 80L)
[13:30:37.233]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[13:30:37.233]             base::names(...future.oldOptions))
[13:30:37.233]     }
[13:30:37.233]     if (FALSE) {
[13:30:37.233]     }
[13:30:37.233]     else {
[13:30:37.233]         if (TRUE) {
[13:30:37.233]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[13:30:37.233]                 open = "w")
[13:30:37.233]         }
[13:30:37.233]         else {
[13:30:37.233]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[13:30:37.233]                 windows = "NUL", "/dev/null"), open = "w")
[13:30:37.233]         }
[13:30:37.233]         base::sink(...future.stdout, type = "output", split = FALSE)
[13:30:37.233]         base::on.exit(if (!base::is.null(...future.stdout)) {
[13:30:37.233]             base::sink(type = "output", split = FALSE)
[13:30:37.233]             base::close(...future.stdout)
[13:30:37.233]         }, add = TRUE)
[13:30:37.233]     }
[13:30:37.233]     ...future.frame <- base::sys.nframe()
[13:30:37.233]     ...future.conditions <- base::list()
[13:30:37.233]     ...future.rng <- base::globalenv()$.Random.seed
[13:30:37.233]     if (FALSE) {
[13:30:37.233]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[13:30:37.233]             "...future.value", "...future.globalenv.names", ".Random.seed")
[13:30:37.233]     }
[13:30:37.233]     ...future.result <- base::tryCatch({
[13:30:37.233]         base::withCallingHandlers({
[13:30:37.233]             ...future.value <- base::withVisible(base::local({
[13:30:37.233]                 message(sprintf("Calculating tile #%d of %d ...", 
[13:30:37.233]                   ii, n), appendLF = FALSE)
[13:30:37.233]                 fit <- mandelbrot(C)
[13:30:37.233]                 delay(fit)
[13:30:37.233]                 message(" done")
[13:30:37.233]                 fit
[13:30:37.233]             }))
[13:30:37.233]             future::FutureResult(value = ...future.value$value, 
[13:30:37.233]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[13:30:37.233]                   ...future.rng), globalenv = if (FALSE) 
[13:30:37.233]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[13:30:37.233]                     ...future.globalenv.names))
[13:30:37.233]                 else NULL, started = ...future.startTime, version = "1.8")
[13:30:37.233]         }, condition = base::local({
[13:30:37.233]             c <- base::c
[13:30:37.233]             inherits <- base::inherits
[13:30:37.233]             invokeRestart <- base::invokeRestart
[13:30:37.233]             length <- base::length
[13:30:37.233]             list <- base::list
[13:30:37.233]             seq.int <- base::seq.int
[13:30:37.233]             signalCondition <- base::signalCondition
[13:30:37.233]             sys.calls <- base::sys.calls
[13:30:37.233]             `[[` <- base::`[[`
[13:30:37.233]             `+` <- base::`+`
[13:30:37.233]             `<<-` <- base::`<<-`
[13:30:37.233]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[13:30:37.233]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[13:30:37.233]                   3L)]
[13:30:37.233]             }
[13:30:37.233]             function(cond) {
[13:30:37.233]                 is_error <- inherits(cond, "error")
[13:30:37.233]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[13:30:37.233]                   NULL)
[13:30:37.233]                 if (is_error) {
[13:30:37.233]                   sessionInformation <- function() {
[13:30:37.233]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[13:30:37.233]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[13:30:37.233]                       search = base::search(), system = base::Sys.info())
[13:30:37.233]                   }
[13:30:37.233]                   ...future.conditions[[length(...future.conditions) + 
[13:30:37.233]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[13:30:37.233]                     cond$call), session = sessionInformation(), 
[13:30:37.233]                     timestamp = base::Sys.time(), signaled = 0L)
[13:30:37.233]                   signalCondition(cond)
[13:30:37.233]                 }
[13:30:37.233]                 else if (!ignore && TRUE && inherits(cond, "condition")) {
[13:30:37.233]                   signal <- FALSE && inherits(cond, character(0))
[13:30:37.233]                   ...future.conditions[[length(...future.conditions) + 
[13:30:37.233]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[13:30:37.233]                   if (FALSE && !signal) {
[13:30:37.233]                     muffleCondition <- function (cond, pattern = "^muffle") 
[13:30:37.233]                     {
[13:30:37.233]                       inherits <- base::inherits
[13:30:37.233]                       invokeRestart <- base::invokeRestart
[13:30:37.233]                       is.null <- base::is.null
[13:30:37.233]                       muffled <- FALSE
[13:30:37.233]                       if (inherits(cond, "message")) {
[13:30:37.233]                         muffled <- grepl(pattern, "muffleMessage")
[13:30:37.233]                         if (muffled) 
[13:30:37.233]                           invokeRestart("muffleMessage")
[13:30:37.233]                       }
[13:30:37.233]                       else if (inherits(cond, "warning")) {
[13:30:37.233]                         muffled <- grepl(pattern, "muffleWarning")
[13:30:37.233]                         if (muffled) 
[13:30:37.233]                           invokeRestart("muffleWarning")
[13:30:37.233]                       }
[13:30:37.233]                       else if (inherits(cond, "condition")) {
[13:30:37.233]                         if (!is.null(pattern)) {
[13:30:37.233]                           computeRestarts <- base::computeRestarts
[13:30:37.233]                           grepl <- base::grepl
[13:30:37.233]                           restarts <- computeRestarts(cond)
[13:30:37.233]                           for (restart in restarts) {
[13:30:37.233]                             name <- restart$name
[13:30:37.233]                             if (is.null(name)) 
[13:30:37.233]                               next
[13:30:37.233]                             if (!grepl(pattern, name)) 
[13:30:37.233]                               next
[13:30:37.233]                             invokeRestart(restart)
[13:30:37.233]                             muffled <- TRUE
[13:30:37.233]                             break
[13:30:37.233]                           }
[13:30:37.233]                         }
[13:30:37.233]                       }
[13:30:37.233]                       invisible(muffled)
[13:30:37.233]                     }
[13:30:37.233]                     muffleCondition(cond, pattern = "^muffle")
[13:30:37.233]                   }
[13:30:37.233]                 }
[13:30:37.233]                 else {
[13:30:37.233]                   if (TRUE) {
[13:30:37.233]                     muffleCondition <- function (cond, pattern = "^muffle") 
[13:30:37.233]                     {
[13:30:37.233]                       inherits <- base::inherits
[13:30:37.233]                       invokeRestart <- base::invokeRestart
[13:30:37.233]                       is.null <- base::is.null
[13:30:37.233]                       muffled <- FALSE
[13:30:37.233]                       if (inherits(cond, "message")) {
[13:30:37.233]                         muffled <- grepl(pattern, "muffleMessage")
[13:30:37.233]                         if (muffled) 
[13:30:37.233]                           invokeRestart("muffleMessage")
[13:30:37.233]                       }
[13:30:37.233]                       else if (inherits(cond, "warning")) {
[13:30:37.233]                         muffled <- grepl(pattern, "muffleWarning")
[13:30:37.233]                         if (muffled) 
[13:30:37.233]                           invokeRestart("muffleWarning")
[13:30:37.233]                       }
[13:30:37.233]                       else if (inherits(cond, "condition")) {
[13:30:37.233]                         if (!is.null(pattern)) {
[13:30:37.233]                           computeRestarts <- base::computeRestarts
[13:30:37.233]                           grepl <- base::grepl
[13:30:37.233]                           restarts <- computeRestarts(cond)
[13:30:37.233]                           for (restart in restarts) {
[13:30:37.233]                             name <- restart$name
[13:30:37.233]                             if (is.null(name)) 
[13:30:37.233]                               next
[13:30:37.233]                             if (!grepl(pattern, name)) 
[13:30:37.233]                               next
[13:30:37.233]                             invokeRestart(restart)
[13:30:37.233]                             muffled <- TRUE
[13:30:37.233]                             break
[13:30:37.233]                           }
[13:30:37.233]                         }
[13:30:37.233]                       }
[13:30:37.233]                       invisible(muffled)
[13:30:37.233]                     }
[13:30:37.233]                     muffleCondition(cond, pattern = "^muffle")
[13:30:37.233]                   }
[13:30:37.233]                 }
[13:30:37.233]             }
[13:30:37.233]         }))
[13:30:37.233]     }, error = function(ex) {
[13:30:37.233]         base::structure(base::list(value = NULL, visible = NULL, 
[13:30:37.233]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[13:30:37.233]                 ...future.rng), started = ...future.startTime, 
[13:30:37.233]             finished = Sys.time(), session_uuid = NA_character_, 
[13:30:37.233]             version = "1.8"), class = "FutureResult")
[13:30:37.233]     }, finally = {
[13:30:37.233]         if (!identical(...future.workdir, getwd())) 
[13:30:37.233]             setwd(...future.workdir)
[13:30:37.233]         {
[13:30:37.233]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[13:30:37.233]                 ...future.oldOptions$nwarnings <- NULL
[13:30:37.233]             }
[13:30:37.233]             base::options(...future.oldOptions)
[13:30:37.233]             if (.Platform$OS.type == "windows") {
[13:30:37.233]                 old_names <- names(...future.oldEnvVars)
[13:30:37.233]                 envs <- base::Sys.getenv()
[13:30:37.233]                 names <- names(envs)
[13:30:37.233]                 common <- intersect(names, old_names)
[13:30:37.233]                 added <- setdiff(names, old_names)
[13:30:37.233]                 removed <- setdiff(old_names, names)
[13:30:37.233]                 changed <- common[...future.oldEnvVars[common] != 
[13:30:37.233]                   envs[common]]
[13:30:37.233]                 NAMES <- toupper(changed)
[13:30:37.233]                 args <- list()
[13:30:37.233]                 for (kk in seq_along(NAMES)) {
[13:30:37.233]                   name <- changed[[kk]]
[13:30:37.233]                   NAME <- NAMES[[kk]]
[13:30:37.233]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:37.233]                     next
[13:30:37.233]                   args[[name]] <- ...future.oldEnvVars[[name]]
[13:30:37.233]                 }
[13:30:37.233]                 NAMES <- toupper(added)
[13:30:37.233]                 for (kk in seq_along(NAMES)) {
[13:30:37.233]                   name <- added[[kk]]
[13:30:37.233]                   NAME <- NAMES[[kk]]
[13:30:37.233]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:37.233]                     next
[13:30:37.233]                   args[[name]] <- ""
[13:30:37.233]                 }
[13:30:37.233]                 NAMES <- toupper(removed)
[13:30:37.233]                 for (kk in seq_along(NAMES)) {
[13:30:37.233]                   name <- removed[[kk]]
[13:30:37.233]                   NAME <- NAMES[[kk]]
[13:30:37.233]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:37.233]                     next
[13:30:37.233]                   args[[name]] <- ...future.oldEnvVars[[name]]
[13:30:37.233]                 }
[13:30:37.233]                 if (length(args) > 0) 
[13:30:37.233]                   base::do.call(base::Sys.setenv, args = args)
[13:30:37.233]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[13:30:37.233]             }
[13:30:37.233]             else {
[13:30:37.233]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[13:30:37.233]             }
[13:30:37.233]             {
[13:30:37.233]                 if (base::length(...future.futureOptionsAdded) > 
[13:30:37.233]                   0L) {
[13:30:37.233]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[13:30:37.233]                   base::names(opts) <- ...future.futureOptionsAdded
[13:30:37.233]                   base::options(opts)
[13:30:37.233]                 }
[13:30:37.233]                 {
[13:30:37.233]                   NULL
[13:30:37.233]                   options(future.plan = NULL)
[13:30:37.233]                   if (is.na(NA_character_)) 
[13:30:37.233]                     Sys.unsetenv("R_FUTURE_PLAN")
[13:30:37.233]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[13:30:37.233]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[13:30:37.233]                     .init = FALSE)
[13:30:37.233]                 }
[13:30:37.233]             }
[13:30:37.233]         }
[13:30:37.233]     })
[13:30:37.233]     if (TRUE) {
[13:30:37.233]         base::sink(type = "output", split = FALSE)
[13:30:37.233]         if (TRUE) {
[13:30:37.233]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[13:30:37.233]         }
[13:30:37.233]         else {
[13:30:37.233]             ...future.result["stdout"] <- base::list(NULL)
[13:30:37.233]         }
[13:30:37.233]         base::close(...future.stdout)
[13:30:37.233]         ...future.stdout <- NULL
[13:30:37.233]     }
[13:30:37.233]     ...future.result$conditions <- ...future.conditions
[13:30:37.233]     ...future.result$finished <- base::Sys.time()
[13:30:37.233]     ...future.result
[13:30:37.233] }
[13:30:37.237] - Launch lazy future ... done
[13:30:37.237] run() for 'MiraiFuture' ... done
[13:30:37.237] - run() ... done
[13:30:37.237] - resolved() ...
[13:30:37.238] resolved() for 'MiraiFuture' ...
[13:30:37.238] - state: 'running'
[13:30:37.238] - run: TRUE
[13:30:37.238] - result: 'NULL'
[13:30:37.238] - resolved: FALSE
[13:30:37.239] resolved() for 'MiraiFuture' ... done
[13:30:37.239] - resolved: FALSE
[13:30:37.239] - resolved() ... done
[13:30:37.239] resolved() for 'MiraiFuture' ... done
[13:30:37.239] resolved() for 'Future' ...
[13:30:37.240] - state: 'created'
[13:30:37.240] - run: TRUE
[13:30:37.240] - run() ...
[13:30:37.241] run() for 'Future' ...
[13:30:37.241] - state: 'created'
[13:30:37.241] - Future backend: 'FutureStrategy', 'tweaked', 'mirai_multisession', 'mirai_cluster', 'mirai', 'multiprocess', 'future', 'function'
[13:30:37.242] - Future class: 'MiraiFuture', 'MultiprocessFuture', 'Future', 'environment'
[13:30:37.242] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ...
[13:30:37.242]   - Field: 'label'
[13:30:37.242]   - Field: 'local'
[13:30:37.242]   - Field: 'owner'
[13:30:37.243]   - Field: 'envir'
[13:30:37.243]   - Field: 'packages'
[13:30:37.243]   - Field: 'gc'
[13:30:37.243]   - Field: 'conditions'
[13:30:37.243]   - Field: 'expr'
[13:30:37.244]   - Field: 'uuid'
[13:30:37.244]   - Field: 'seed'
[13:30:37.244]   - Field: 'version'
[13:30:37.244]   - Field: 'result'
[13:30:37.244]   - Field: 'asynchronous'
[13:30:37.244]   - Field: 'calls'
[13:30:37.245]   - Field: 'globals'
[13:30:37.245]   - Field: 'stdout'
[13:30:37.245]   - Field: 'earlySignal'
[13:30:37.245]   - Field: 'lazy'
[13:30:37.245]   - Field: 'state'
[13:30:37.245]   - Field: '.cluster'
[13:30:37.246] - Copy elements of temporary 'MiraiFuture' to final 'Future' object ... done
[13:30:37.246] - Launch lazy future ...
[13:30:37.246] Packages needed by the future expression (n = 1): 'future'
[13:30:37.246] Packages needed by future strategies (n = 0): <none>
[13:30:37.247] {
[13:30:37.247]     {
[13:30:37.247]         {
[13:30:37.247]             ...future.startTime <- base::Sys.time()
[13:30:37.247]             {
[13:30:37.247]                 {
[13:30:37.247]                   {
[13:30:37.247]                     {
[13:30:37.247]                       base::local({
[13:30:37.247]                         has_future <- base::requireNamespace("future", 
[13:30:37.247]                           quietly = TRUE)
[13:30:37.247]                         if (has_future) {
[13:30:37.247]                           ns <- base::getNamespace("future")
[13:30:37.247]                           version <- ns[[".package"]][["version"]]
[13:30:37.247]                           if (is.null(version)) 
[13:30:37.247]                             version <- utils::packageVersion("future")
[13:30:37.247]                         }
[13:30:37.247]                         else {
[13:30:37.247]                           version <- NULL
[13:30:37.247]                         }
[13:30:37.247]                         if (!has_future || version < "1.8.0") {
[13:30:37.247]                           info <- base::c(r_version = base::gsub("R version ", 
[13:30:37.247]                             "", base::R.version$version.string), 
[13:30:37.247]                             platform = base::sprintf("%s (%s-bit)", 
[13:30:37.247]                               base::R.version$platform, 8 * base::.Machine$sizeof.pointer), 
[13:30:37.247]                             os = base::paste(base::Sys.info()[base::c("sysname", 
[13:30:37.247]                               "release", "version")], collapse = " "), 
[13:30:37.247]                             hostname = base::Sys.info()[["nodename"]])
[13:30:37.247]                           info <- base::sprintf("%s: %s", base::names(info), 
[13:30:37.247]                             info)
[13:30:37.247]                           info <- base::paste(info, collapse = "; ")
[13:30:37.247]                           if (!has_future) {
[13:30:37.247]                             msg <- base::sprintf("Package 'future' is not installed on worker (%s)", 
[13:30:37.247]                               info)
[13:30:37.247]                           }
[13:30:37.247]                           else {
[13:30:37.247]                             msg <- base::sprintf("Package 'future' on worker (%s) must be of version >= 1.8.0: %s", 
[13:30:37.247]                               info, version)
[13:30:37.247]                           }
[13:30:37.247]                           base::stop(msg)
[13:30:37.247]                         }
[13:30:37.247]                       })
[13:30:37.247]                     }
[13:30:37.247]                     base::local({
[13:30:37.247]                       for (pkg in "future") {
[13:30:37.247]                         base::loadNamespace(pkg)
[13:30:37.247]                         base::library(pkg, character.only = TRUE)
[13:30:37.247]                       }
[13:30:37.247]                     })
[13:30:37.247]                   }
[13:30:37.247]                   ...future.strategy.old <- future::plan("list")
[13:30:37.247]                   options(future.plan = NULL)
[13:30:37.247]                   Sys.unsetenv("R_FUTURE_PLAN")
[13:30:37.247]                   future::plan("default", .cleanup = FALSE, .init = FALSE)
[13:30:37.247]                 }
[13:30:37.247]                 ...future.workdir <- getwd()
[13:30:37.247]             }
[13:30:37.247]             ...future.oldOptions <- base::as.list(base::.Options)
[13:30:37.247]             ...future.oldEnvVars <- base::Sys.getenv()
[13:30:37.247]         }
[13:30:37.247]         base::options(future.startup.script = FALSE, future.globals.onMissing = NULL, 
[13:30:37.247]             future.globals.maxSize = NULL, future.globals.method = NULL, 
[13:30:37.247]             future.globals.onMissing = NULL, future.globals.onReference = NULL, 
[13:30:37.247]             future.globals.resolve = NULL, future.resolve.recursive = NULL, 
[13:30:37.247]             future.rng.onMisuse = NULL, future.rng.onMisuse.keepFuture = NULL, 
[13:30:37.247]             future.stdout.windows.reencode = NULL, width = 80L)
[13:30:37.247]         ...future.futureOptionsAdded <- base::setdiff(base::names(base::.Options), 
[13:30:37.247]             base::names(...future.oldOptions))
[13:30:37.247]     }
[13:30:37.247]     if (FALSE) {
[13:30:37.247]     }
[13:30:37.247]     else {
[13:30:37.247]         if (TRUE) {
[13:30:37.247]             ...future.stdout <- base::rawConnection(base::raw(0L), 
[13:30:37.247]                 open = "w")
[13:30:37.247]         }
[13:30:37.247]         else {
[13:30:37.247]             ...future.stdout <- base::file(base::switch(.Platform$OS.type, 
[13:30:37.247]                 windows = "NUL", "/dev/null"), open = "w")
[13:30:37.247]         }
[13:30:37.247]         base::sink(...future.stdout, type = "output", split = FALSE)
[13:30:37.247]         base::on.exit(if (!base::is.null(...future.stdout)) {
[13:30:37.247]             base::sink(type = "output", split = FALSE)
[13:30:37.247]             base::close(...future.stdout)
[13:30:37.247]         }, add = TRUE)
[13:30:37.247]     }
[13:30:37.247]     ...future.frame <- base::sys.nframe()
[13:30:37.247]     ...future.conditions <- base::list()
[13:30:37.247]     ...future.rng <- base::globalenv()$.Random.seed
[13:30:37.247]     if (FALSE) {
[13:30:37.247]         ...future.globalenv.names <- c(base::names(base::.GlobalEnv), 
[13:30:37.247]             "...future.value", "...future.globalenv.names", ".Random.seed")
[13:30:37.247]     }
[13:30:37.247]     ...future.result <- base::tryCatch({
[13:30:37.247]         base::withCallingHandlers({
[13:30:37.247]             ...future.value <- base::withVisible(base::local({
[13:30:37.247]                 message(sprintf("Calculating tile #%d of %d ...", 
[13:30:37.247]                   ii, n), appendLF = FALSE)
[13:30:37.247]                 fit <- mandelbrot(C)
[13:30:37.247]                 delay(fit)
[13:30:37.247]                 message(" done")
[13:30:37.247]                 fit
[13:30:37.247]             }))
[13:30:37.247]             future::FutureResult(value = ...future.value$value, 
[13:30:37.247]                 visible = ...future.value$visible, rng = !identical(base::globalenv()$.Random.seed, 
[13:30:37.247]                   ...future.rng), globalenv = if (FALSE) 
[13:30:37.247]                   list(added = base::setdiff(base::names(base::.GlobalEnv), 
[13:30:37.247]                     ...future.globalenv.names))
[13:30:37.247]                 else NULL, started = ...future.startTime, version = "1.8")
[13:30:37.247]         }, condition = base::local({
[13:30:37.247]             c <- base::c
[13:30:37.247]             inherits <- base::inherits
[13:30:37.247]             invokeRestart <- base::invokeRestart
[13:30:37.247]             length <- base::length
[13:30:37.247]             list <- base::list
[13:30:37.247]             seq.int <- base::seq.int
[13:30:37.247]             signalCondition <- base::signalCondition
[13:30:37.247]             sys.calls <- base::sys.calls
[13:30:37.247]             `[[` <- base::`[[`
[13:30:37.247]             `+` <- base::`+`
[13:30:37.247]             `<<-` <- base::`<<-`
[13:30:37.247]             sysCalls <- function(calls = sys.calls(), from = 1L) {
[13:30:37.247]                 calls[seq.int(from = from + 12L, to = length(calls) - 
[13:30:37.247]                   3L)]
[13:30:37.247]             }
[13:30:37.247]             function(cond) {
[13:30:37.247]                 is_error <- inherits(cond, "error")
[13:30:37.247]                 ignore <- !is_error && !is.null(NULL) && inherits(cond, 
[13:30:37.247]                   NULL)
[13:30:37.247]                 if (is_error) {
[13:30:37.247]                   sessionInformation <- function() {
[13:30:37.247]                     list(r = base::R.Version(), locale = base::Sys.getlocale(), 
[13:30:37.247]                       rngkind = base::RNGkind(), namespaces = base::loadedNamespaces(), 
[13:30:37.247]                       search = base::search(), system = base::Sys.info())
[13:30:37.247]                   }
[13:30:37.247]                   ...future.conditions[[length(...future.conditions) + 
[13:30:37.247]                     1L]] <<- list(condition = cond, calls = c(sysCalls(from = ...future.frame), 
[13:30:37.247]                     cond$call), session = sessionInformation(), 
[13:30:37.247]                     timestamp = base::Sys.time(), signaled = 0L)
[13:30:37.247]                   signalCondition(cond)
[13:30:37.247]                 }
[13:30:37.247]                 else if (!ignore && TRUE && inherits(cond, "condition")) {
[13:30:37.247]                   signal <- FALSE && inherits(cond, character(0))
[13:30:37.247]                   ...future.conditions[[length(...future.conditions) + 
[13:30:37.247]                     1L]] <<- list(condition = cond, signaled = base::as.integer(signal))
[13:30:37.247]                   if (FALSE && !signal) {
[13:30:37.247]                     muffleCondition <- function (cond, pattern = "^muffle") 
[13:30:37.247]                     {
[13:30:37.247]                       inherits <- base::inherits
[13:30:37.247]                       invokeRestart <- base::invokeRestart
[13:30:37.247]                       is.null <- base::is.null
[13:30:37.247]                       muffled <- FALSE
[13:30:37.247]                       if (inherits(cond, "message")) {
[13:30:37.247]                         muffled <- grepl(pattern, "muffleMessage")
[13:30:37.247]                         if (muffled) 
[13:30:37.247]                           invokeRestart("muffleMessage")
[13:30:37.247]                       }
[13:30:37.247]                       else if (inherits(cond, "warning")) {
[13:30:37.247]                         muffled <- grepl(pattern, "muffleWarning")
[13:30:37.247]                         if (muffled) 
[13:30:37.247]                           invokeRestart("muffleWarning")
[13:30:37.247]                       }
[13:30:37.247]                       else if (inherits(cond, "condition")) {
[13:30:37.247]                         if (!is.null(pattern)) {
[13:30:37.247]                           computeRestarts <- base::computeRestarts
[13:30:37.247]                           grepl <- base::grepl
[13:30:37.247]                           restarts <- computeRestarts(cond)
[13:30:37.247]                           for (restart in restarts) {
[13:30:37.247]                             name <- restart$name
[13:30:37.247]                             if (is.null(name)) 
[13:30:37.247]                               next
[13:30:37.247]                             if (!grepl(pattern, name)) 
[13:30:37.247]                               next
[13:30:37.247]                             invokeRestart(restart)
[13:30:37.247]                             muffled <- TRUE
[13:30:37.247]                             break
[13:30:37.247]                           }
[13:30:37.247]                         }
[13:30:37.247]                       }
[13:30:37.247]                       invisible(muffled)
[13:30:37.247]                     }
[13:30:37.247]                     muffleCondition(cond, pattern = "^muffle")
[13:30:37.247]                   }
[13:30:37.247]                 }
[13:30:37.247]                 else {
[13:30:37.247]                   if (TRUE) {
[13:30:37.247]                     muffleCondition <- function (cond, pattern = "^muffle") 
[13:30:37.247]                     {
[13:30:37.247]                       inherits <- base::inherits
[13:30:37.247]                       invokeRestart <- base::invokeRestart
[13:30:37.247]                       is.null <- base::is.null
[13:30:37.247]                       muffled <- FALSE
[13:30:37.247]                       if (inherits(cond, "message")) {
[13:30:37.247]                         muffled <- grepl(pattern, "muffleMessage")
[13:30:37.247]                         if (muffled) 
[13:30:37.247]                           invokeRestart("muffleMessage")
[13:30:37.247]                       }
[13:30:37.247]                       else if (inherits(cond, "warning")) {
[13:30:37.247]                         muffled <- grepl(pattern, "muffleWarning")
[13:30:37.247]                         if (muffled) 
[13:30:37.247]                           invokeRestart("muffleWarning")
[13:30:37.247]                       }
[13:30:37.247]                       else if (inherits(cond, "condition")) {
[13:30:37.247]                         if (!is.null(pattern)) {
[13:30:37.247]                           computeRestarts <- base::computeRestarts
[13:30:37.247]                           grepl <- base::grepl
[13:30:37.247]                           restarts <- computeRestarts(cond)
[13:30:37.247]                           for (restart in restarts) {
[13:30:37.247]                             name <- restart$name
[13:30:37.247]                             if (is.null(name)) 
[13:30:37.247]                               next
[13:30:37.247]                             if (!grepl(pattern, name)) 
[13:30:37.247]                               next
[13:30:37.247]                             invokeRestart(restart)
[13:30:37.247]                             muffled <- TRUE
[13:30:37.247]                             break
[13:30:37.247]                           }
[13:30:37.247]                         }
[13:30:37.247]                       }
[13:30:37.247]                       invisible(muffled)
[13:30:37.247]                     }
[13:30:37.247]                     muffleCondition(cond, pattern = "^muffle")
[13:30:37.247]                   }
[13:30:37.247]                 }
[13:30:37.247]             }
[13:30:37.247]         }))
[13:30:37.247]     }, error = function(ex) {
[13:30:37.247]         base::structure(base::list(value = NULL, visible = NULL, 
[13:30:37.247]             conditions = ...future.conditions, rng = !identical(base::globalenv()$.Random.seed, 
[13:30:37.247]                 ...future.rng), started = ...future.startTime, 
[13:30:37.247]             finished = Sys.time(), session_uuid = NA_character_, 
[13:30:37.247]             version = "1.8"), class = "FutureResult")
[13:30:37.247]     }, finally = {
[13:30:37.247]         if (!identical(...future.workdir, getwd())) 
[13:30:37.247]             setwd(...future.workdir)
[13:30:37.247]         {
[13:30:37.247]             if (identical(getOption("nwarnings"), ...future.oldOptions$nwarnings)) {
[13:30:37.247]                 ...future.oldOptions$nwarnings <- NULL
[13:30:37.247]             }
[13:30:37.247]             base::options(...future.oldOptions)
[13:30:37.247]             if (.Platform$OS.type == "windows") {
[13:30:37.247]                 old_names <- names(...future.oldEnvVars)
[13:30:37.247]                 envs <- base::Sys.getenv()
[13:30:37.247]                 names <- names(envs)
[13:30:37.247]                 common <- intersect(names, old_names)
[13:30:37.247]                 added <- setdiff(names, old_names)
[13:30:37.247]                 removed <- setdiff(old_names, names)
[13:30:37.247]                 changed <- common[...future.oldEnvVars[common] != 
[13:30:37.247]                   envs[common]]
[13:30:37.247]                 NAMES <- toupper(changed)
[13:30:37.247]                 args <- list()
[13:30:37.247]                 for (kk in seq_along(NAMES)) {
[13:30:37.247]                   name <- changed[[kk]]
[13:30:37.247]                   NAME <- NAMES[[kk]]
[13:30:37.247]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:37.247]                     next
[13:30:37.247]                   args[[name]] <- ...future.oldEnvVars[[name]]
[13:30:37.247]                 }
[13:30:37.247]                 NAMES <- toupper(added)
[13:30:37.247]                 for (kk in seq_along(NAMES)) {
[13:30:37.247]                   name <- added[[kk]]
[13:30:37.247]                   NAME <- NAMES[[kk]]
[13:30:37.247]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:37.247]                     next
[13:30:37.247]                   args[[name]] <- ""
[13:30:37.247]                 }
[13:30:37.247]                 NAMES <- toupper(removed)
[13:30:37.247]                 for (kk in seq_along(NAMES)) {
[13:30:37.247]                   name <- removed[[kk]]
[13:30:37.247]                   NAME <- NAMES[[kk]]
[13:30:37.247]                   if (name != NAME && is.element(NAME, old_names)) 
[13:30:37.247]                     next
[13:30:37.247]                   args[[name]] <- ...future.oldEnvVars[[name]]
[13:30:37.247]                 }
[13:30:37.247]                 if (length(args) > 0) 
[13:30:37.247]                   base::do.call(base::Sys.setenv, args = args)
[13:30:37.247]                 args <- names <- old_names <- NAMES <- envs <- common <- added <- removed <- NULL
[13:30:37.247]             }
[13:30:37.247]             else {
[13:30:37.247]                 base::do.call(base::Sys.setenv, args = base::as.list(...future.oldEnvVars))
[13:30:37.247]             }
[13:30:37.247]             {
[13:30:37.247]                 if (base::length(...future.futureOptionsAdded) > 
[13:30:37.247]                   0L) {
[13:30:37.247]                   opts <- base::vector("list", length = base::length(...future.futureOptionsAdded))
[13:30:37.247]                   base::names(opts) <- ...future.futureOptionsAdded
[13:30:37.247]                   base::options(opts)
[13:30:37.247]                 }
[13:30:37.247]                 {
[13:30:37.247]                   NULL
[13:30:37.247]                   options(future.plan = NULL)
[13:30:37.247]                   if (is.na(NA_character_)) 
[13:30:37.247]                     Sys.unsetenv("R_FUTURE_PLAN")
[13:30:37.247]                   else Sys.setenv(R_FUTURE_PLAN = NA_character_)
[13:30:37.247]                   future::plan(...future.strategy.old, .cleanup = FALSE, 
[13:30:37.247]                     .init = FALSE)
[13:30:37.247]                 }
[13:30:37.247]             }
[13:30:37.247]         }
[13:30:37.247]     })
[13:30:37.247]     if (TRUE) {
[13:30:37.247]         base::sink(type = "output", split = FALSE)
[13:30:37.247]         if (TRUE) {
[13:30:37.247]             ...future.result$stdout <- base::rawToChar(base::rawConnectionValue(...future.stdout))
[13:30:37.247]         }
[13:30:37.247]         else {
[13:30:37.247]             ...future.result["stdout"] <- base::list(NULL)
[13:30:37.247]         }
[13:30:37.247]         base::close(...future.stdout)
[13:30:37.247]         ...future.stdout <- NULL
[13:30:37.247]     }
[13:30:37.247]     ...future.result$conditions <- ...future.conditions
[13:30:37.247]     ...future.result$finished <- base::Sys.time()
[13:30:37.247]     ...future.result
[13:30:37.247] }
[13:30:37.251] - Launch lazy future ... done
[13:30:37.251] run() for 'MiraiFuture' ... done
[13:30:37.251] - run() ... done
[13:30:37.252] - resolved() ...
[13:30:37.252] resolved() for 'MiraiFuture' ...
[13:30:37.252] - state: 'running'
[13:30:37.252] - run: TRUE
[13:30:37.252] - result: 'NULL'
[13:30:37.252] - resolved: FALSE
[13:30:37.253] resolved() for 'MiraiFuture' ... done
[13:30:37.253] - resolved: FALSE
[13:30:37.253] - resolved() ... done
[13:30:37.253] resolved() for 'MiraiFuture' ... done
[13:30:37.253] resolved() for 'MiraiFuture' ...
[13:30:37.254] - state: 'running'
[13:30:37.254] - run: TRUE
[13:30:37.254] - result: 'NULL'
[13:30:37.254] - resolved: FALSE
[13:30:37.254] resolved() for 'MiraiFuture' ... done
Plotting tile #1 of 4 ...
[13:30:37.255] signalConditions() ...
[13:30:37.255]  - include = 'immediateCondition'
[13:30:37.255]  - exclude = 
[13:30:37.255]  - resignal = FALSE
[13:30:37.256]  - Number of conditions: 2
[13:30:37.256] signalConditions() ... done
[13:30:37.256] Future state: 'finished'
[13:30:37.256] signalConditions() ...
[13:30:37.256]  - include = 'condition'
[13:30:37.257]  - exclude = 'immediateCondition'
[13:30:37.257]  - resignal = TRUE
[13:30:37.257]  - Number of conditions: 2
[13:30:37.257]  - Condition #1: 'simpleMessage', 'message', 'condition'
Calculating tile #1 of 4 ...[13:30:37.257]  - Condition #2: 'simpleMessage', 'message', 'condition'
 done
[13:30:37.257] signalConditions() ... done
[13:30:37.261] resolved() for 'MiraiFuture' ...
[13:30:37.261] - state: 'running'
[13:30:37.262] - run: TRUE
[13:30:37.262] - result: 'NULL'
[13:30:37.262] - resolved: FALSE
[13:30:37.262] resolved() for 'MiraiFuture' ... done
Plotting tile #2 of 4 ...
[13:30:37.263] signalConditions() ...
[13:30:37.263]  - include = 'immediateCondition'
[13:30:37.263]  - exclude = 
[13:30:37.263]  - resignal = FALSE
[13:30:37.263]  - Number of conditions: 2
[13:30:37.264] signalConditions() ... done
[13:30:37.264] Future state: 'finished'
[13:30:37.264] signalConditions() ...
[13:30:37.264]  - include = 'condition'
[13:30:37.264]  - exclude = 'immediateCondition'
[13:30:37.264]  - resignal = TRUE
[13:30:37.265]  - Number of conditions: 2
[13:30:37.265]  - Condition #1: 'simpleMessage', 'message', 'condition'
Calculating tile #2 of 4 ...[13:30:37.265]  - Condition #2: 'simpleMessage', 'message', 'condition'
 done
[13:30:37.265] signalConditions() ... done
[13:30:37.266] resolved() for 'MiraiFuture' ...
[13:30:37.266] - state: 'running'
[13:30:37.266] - run: TRUE
[13:30:37.267] - result: 'NULL'
[13:30:37.267] - resolved: FALSE
[13:30:37.267] resolved() for 'MiraiFuture' ... done
[13:30:37.267] resolved() for 'MiraiFuture' ...
[13:30:37.267] - state: 'running'
[13:30:37.267] - run: TRUE
[13:30:37.268] - result: 'NULL'
[13:30:37.268] - resolved: FALSE
[13:30:37.268] resolved() for 'MiraiFuture' ... done
[13:30:37.268] resolved() for 'MiraiFuture' ...
[13:30:37.268] - state: 'running'
[13:30:37.269] - run: TRUE
[13:30:37.269] - result: 'NULL'
[13:30:37.269] - resolved: FALSE
[13:30:37.269] resolved() for 'MiraiFuture' ... done
[13:30:37.269] resolved() for 'MiraiFuture' ...
[13:30:37.269] - state: 'running'
[13:30:37.270] - run: TRUE
[13:30:37.270] - result: 'NULL'
[13:30:37.270] - resolved: FALSE
[13:30:37.270] resolved() for 'MiraiFuture' ... done
[13:30:37.270] resolved() for 'MiraiFuture' ...
[13:30:37.271] - state: 'running'
[13:30:37.271] - run: TRUE
[13:30:37.271] - result: 'NULL'
[13:30:37.271] - resolved: FALSE
[13:30:37.271] resolved() for 'MiraiFuture' ... done
[13:30:37.272] resolved() for 'MiraiFuture' ...
[13:30:37.272] - state: 'running'
[13:30:37.272] - run: TRUE
[13:30:37.272] - result: 'NULL'
[13:30:37.272] - resolved: FALSE
[13:30:37.272] resolved() for 'MiraiFuture' ... done
[13:30:37.273] resolved() for 'MiraiFuture' ...
[13:30:37.273] - state: 'running'
[13:30:37.273] - run: TRUE
[13:30:37.273] - result: 'NULL'
[13:30:37.273] - resolved: FALSE
[13:30:37.274] resolved() for 'MiraiFuture' ... done
[13:30:37.274] resolved() for 'MiraiFuture' ...
[13:30:37.274] - state: 'running'
[13:30:37.274] - run: TRUE
[13:30:37.274] - result: 'NULL'
[13:30:37.274] - resolved: FALSE
[13:30:37.275] resolved() for 'MiraiFuture' ... done
[13:30:37.275] resolved() for 'MiraiFuture' ...
[13:30:37.275] - state: 'running'
[13:30:37.275] - run: TRUE
[13:30:37.275] - result: 'NULL'
[13:30:37.276] - resolved: FALSE
[13:30:37.276] resolved() for 'MiraiFuture' ... done
[13:30:37.276] resolved() for 'MiraiFuture' ...
[13:30:37.276] - state: 'running'
[13:30:37.276] - run: TRUE
[13:30:37.276] - result: 'NULL'
[13:30:37.277] - resolved: FALSE
[13:30:37.277] resolved() for 'MiraiFuture' ... done
[13:30:37.277] resolved() for 'MiraiFuture' ...
[13:30:37.277] - state: 'running'
[13:30:37.277] - run: TRUE
[13:30:37.278] - result: 'NULL'
[13:30:37.278] - resolved: FALSE
[13:30:37.278] resolved() for 'MiraiFuture' ... done
[13:30:37.278] resolved() for 'MiraiFuture' ...
[13:30:37.278] - state: 'running'
[13:30:37.278] - run: TRUE
[13:30:37.279] - result: 'NULL'
[13:30:37.279] - resolved: FALSE
[13:30:37.279] resolved() for 'MiraiFuture' ... done
[13:30:37.279] resolved() for 'MiraiFuture' ...
[13:30:37.279] - state: 'running'
[13:30:37.280] - run: TRUE
[13:30:37.280] - result: 'NULL'
[13:30:37.280] - resolved: FALSE
[13:30:37.280] resolved() for 'MiraiFuture' ... done
[13:30:37.280] resolved() for 'MiraiFuture' ...
[13:30:37.280] - state: 'running'
[13:30:37.281] - run: TRUE
[13:30:37.281] - result: 'NULL'
[13:30:37.281] - resolved: FALSE
[13:30:37.281] resolved() for 'MiraiFuture' ... done
[13:30:37.281] resolved() for 'MiraiFuture' ...
[13:30:37.282] - state: 'running'
[13:30:37.282] - run: TRUE
[13:30:37.282] - result: 'NULL'
[13:30:37.282] - resolved: FALSE
[13:30:37.282] resolved() for 'MiraiFuture' ... done
Plotting tile #3 of 4 ...
[13:30:37.283] signalConditions() ...
[13:30:37.283]  - include = 'immediateCondition'
[13:30:37.283]  - exclude = 
[13:30:37.283]  - resignal = FALSE
[13:30:37.283]  - Number of conditions: 2
[13:30:37.284] signalConditions() ... done
[13:30:37.284] Future state: 'finished'
[13:30:37.284] signalConditions() ...
[13:30:37.284]  - include = 'condition'
[13:30:37.284]  - exclude = 'immediateCondition'
[13:30:37.285]  - resignal = TRUE
[13:30:37.285]  - Number of conditions: 2
[13:30:37.285]  - Condition #1: 'simpleMessage', 'message', 'condition'
Calculating tile #3 of 4 ...[13:30:37.285]  - Condition #2: 'simpleMessage', 'message', 'condition'
 done
[13:30:37.285] signalConditions() ... done
[13:30:37.286] resolved() for 'MiraiFuture' ...
[13:30:37.286] - state: 'running'
[13:30:37.286] - run: TRUE
[13:30:37.287] - result: 'NULL'
[13:30:37.287] - resolved: FALSE
[13:30:37.287] resolved() for 'MiraiFuture' ... done
[13:30:37.287] resolved() for 'MiraiFuture' ...
[13:30:37.287] - state: 'running'
[13:30:37.288] - run: TRUE
[13:30:37.288] - result: 'NULL'
[13:30:37.288] - resolved: FALSE
[13:30:37.288] resolved() for 'MiraiFuture' ... done
[13:30:37.288] resolved() for 'MiraiFuture' ...
[13:30:37.289] - state: 'running'
[13:30:37.289] - run: TRUE
[13:30:37.289] - result: 'NULL'
[13:30:37.289] - resolved: FALSE
[13:30:37.289] resolved() for 'MiraiFuture' ... done
[13:30:37.290] resolved() for 'MiraiFuture' ...
[13:30:37.290] - state: 'running'
[13:30:37.290] - run: TRUE
[13:30:37.290] - result: 'NULL'
[13:30:37.290] - resolved: FALSE
[13:30:37.290] resolved() for 'MiraiFuture' ... done
[13:30:37.291] resolved() for 'MiraiFuture' ...
[13:30:37.291] - state: 'running'
[13:30:37.291] - run: TRUE
[13:30:37.291] - result: 'NULL'
[13:30:37.291] - resolved: FALSE
[13:30:37.291] resolved() for 'MiraiFuture' ... done
[13:30:37.293] resolved() for 'MiraiFuture' ...
[13:30:37.294] - state: 'running'
[13:30:37.294] - run: TRUE
[13:30:37.294] - result: 'NULL'
[13:30:37.294] - resolved: FALSE
[13:30:37.294] resolved() for 'MiraiFuture' ... done
[13:30:37.294] resolved() for 'MiraiFuture' ...
[13:30:37.295] - state: 'running'
[13:30:37.295] - run: TRUE
[13:30:37.295] - result: 'NULL'
[13:30:37.295] - resolved: FALSE
[13:30:37.295] resolved() for 'MiraiFuture' ... done
[13:30:37.296] resolved() for 'MiraiFuture' ...
[13:30:37.296] - state: 'running'
[13:30:37.296] - run: TRUE
[13:30:37.296] - result: 'NULL'
[13:30:37.296] - resolved: FALSE
[13:30:37.296] resolved() for 'MiraiFuture' ... done
[13:30:37.297] resolved() for 'MiraiFuture' ...
[13:30:37.297] - state: 'running'
[13:30:37.297] - run: TRUE
[13:30:37.297] - result: 'NULL'
[13:30:37.297] - resolved: FALSE
[13:30:37.298] resolved() for 'MiraiFuture' ... done
[13:30:37.298] resolved() for 'MiraiFuture' ...
[13:30:37.298] - state: 'running'
[13:30:37.298] - run: TRUE
[13:30:37.298] - result: 'NULL'
[13:30:37.299] - resolved: FALSE
[13:30:37.299] resolved() for 'MiraiFuture' ... done
[13:30:37.299] resolved() for 'MiraiFuture' ...
[13:30:37.299] - state: 'running'
[13:30:37.299] - run: TRUE
[13:30:37.299] - result: 'NULL'
[13:30:37.300] - resolved: FALSE
[13:30:37.300] resolved() for 'MiraiFuture' ... done
Plotting tile #4 of 4 ...
[13:30:37.300] signalConditions() ...
[13:30:37.301]  - include = 'immediateCondition'
[13:30:37.301]  - exclude = 
[13:30:37.301]  - resignal = FALSE
[13:30:37.301]  - Number of conditions: 2
[13:30:37.301] signalConditions() ... done
[13:30:37.301] Future state: 'finished'
[13:30:37.302] signalConditions() ...
[13:30:37.302]  - include = 'condition'
[13:30:37.302]  - exclude = 'immediateCondition'
[13:30:37.302]  - resignal = TRUE
[13:30:37.302]  - Number of conditions: 2
[13:30:37.303]  - Condition #1: 'simpleMessage', 'message', 'condition'
Calculating tile #4 of 4 ...[13:30:37.303]  - Condition #2: 'simpleMessage', 'message', 'condition'
 done
[13:30:37.303] 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 
   0.51    0.09    1.04