R Under development (unstable) (2025-06-05 r88281 ucrt) -- "Unsuffered Consequences"
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> source("incl/start.R")
Loading required package: parallelly
Loading required package: future
> library("listenv")
> 
> message("*** batchtools_ssh() ...")
*** batchtools_ssh() ...
> 
> plan(batchtools_ssh, workers = 2L)
> supports_ssh <- tryCatch({
+   f <- future(42L)
+   v <- value(f)
+   identical(v, 42L)
+ }, error = function(e) FALSE)
> message("Supports batchtools_ssh: ", supports_ssh)
Supports batchtools_ssh: FALSE
> 
> if (supports_ssh) {
+   message("future(a) ...")
+   a0 <- a <- 42
+   f <- future(a)
+   stopifnot(identical(f$globals$a, a0))
+   v <- value(f)
+   stopifnot(identical(v, a0))
+ 
+   message("future(a, lazy = TRUE) ...")
+   a0 <- a <- 42
+   f <- future(a, lazy = TRUE)
+   rm(list = "a")
+   stopifnot(identical(f$globals$a, a0))
+   v <- value(f)
+   stopifnot(identical(v, a0))
+ } ## if (supports_ssh)
> 
> message("*** batchtools_ssh() ... DONE")
*** batchtools_ssh() ... DONE
> 
> source("incl/end.R")
> 
> proc.time()
   user  system elapsed 
   0.95    0.32    1.39