tests/testthat/_snaps/eval.md

In r-lib/callr: Call R from R

errors are printed on stderr

Code
  r(f, stdout = out <- tempfile(), stderr = err <- tempfile())
Condition
  Error:
  ! in callr subprocess.
  Caused by error:
  ! send to stderr 2

r-lib/callr documentation built on June 11, 2025, 2:48 p.m.