R Under development (unstable) (2025-01-06 r87534 ucrt) -- "Unsuffered Consequences"
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> testit::test_pkg('xfun', 'test-cran')

Attaching package: 'xfun'

The following object is masked from 'package:base':

    attr

Warning messages:
1: In pkg_bib(pkgs, tempfile(), tweak = FALSE) :
  package(s) KernSmooth not found
2: In pkg_bib(pkgs, tweak = TRUE) : package(s) KernSmooth not found
3: In prose_index(x) : Code fences are not balanced
4: In file.symlink(f1, f2) :
  cannot symlink 'D:\temp\2025_01_07_15_15_17_12583\RtmpUttwtX\file71b415207fb6' to 'D:\temp\2025_01_07_15_15_17_12583\RtmpUttwtX\file71b415207fb6~', reason 'Dem Client fehlt ein erforderliches Recht'
> 
> proc.time()
   user  system elapsed 
   0.89    0.12    8.81