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Running the tests in ‘tests/test-invalid-owner.R’ failed.
Complete output:
  > #! /usr/bin/env Rscript
  > ## This runs testme test script inst/testme/test-invalid-owner.R
  > ## Don't edit - it was autogenerated by inst/testme/deploy.R
  > future:::testme("invalid-owner")
  Test 'invalid-owner' ...
   chr "none"
  
  > library(future)
  [16:19:14.408] Option 'future.startup.script': TRUE
  [16:19:14.408] Future startup scripts considered: '.future.R', '~/.future.R'
  [16:19:14.409] Future startup scripts found: <none>
  
  > options(future.debug = FALSE)
  
  > usedNodes <- function(future) {
  +     backend <- future[["backend"]]
  +     workers <- backend[["workers"]]
  +     reg <- backend[["reg"]]
  +     c(use .... [TRUNCATED] 
  
  > plan(multisession, workers = 2)
  Error in serverSocket(port = port) : 
    creation of server socket failed: port 31156 cannot be opened
  Calls: <Anonymous> -> source -> withVisible -> eval -> eval -> main -> testme_run_test -> source -> withVisible -> eval -> eval -> plan -> plan_set -> plan_init -> makeFutureBackend -> do.call -> <Anonymous> -> ClusterFutureBackend -> <Anonymous> -> makeCluster -> do.call -> <Anonymous> -> serverSocket
  Execution halted