R Under development (unstable) (2024-02-18 r85939 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(callr)
> 
> test_check("callr")
[ FAIL 0 | WARN 0 | SKIP 38 | PASS 265 ]

══ Skipped tests (38) ══════════════════════════════════════════════════════════
• On CRAN (36): 'test-archs.R:3:3', 'test-archs.R:13:3', 'test-archs.R:27:3',
  'test-archs.R:45:3', 'test-error.R:3:3', 'test-error.R:11:3',
  'test-error.R:19:3', 'test-error.R:35:3', 'test-error.R:55:3',
  'test-error.R:66:3', 'test-error.R:80:3', 'test-error.R:94:3',
  'test-error.R:108:3', 'test-error.R:118:3', 'test-error.R:135:3',
  'test-error.R:143:3', 'test-error.R:152:3', 'test-error.R:165:3',
  'test-error.R:186:3', 'test-error.R:198:3', 'test-error.R:211:3',
  'test-error.R:224:3', 'test-error.R:237:3', 'test-error.R:255:3',
  'test-eval.R:203:3', 'test-load-client.R:104:3', 'test-messages.R:10:3',
  'test-package.R:3:3', 'test-r-bg.R:62:3', 'test-r-session.R:90:3',
  'test-r-session.R:224:3', 'test-rcmd-process.R:15:3', 'test-rcmd.R:90:3',
  'test-rscript.R:44:3', 'test-rscript.R:67:3', 'test-spelling.R:3:3'
• On Windows (1): 'test-load-client.R:57:3'
• Unix only (1): 'test-libpath.R:177:3'

[ FAIL 0 | WARN 0 | SKIP 38 | PASS 265 ]
> 
> proc.time()
   user  system elapsed 
  13.67    3.06   86.23