github uses actions/cache@v2

[zyctree]

https://github.com/actions/cache/blob/main/examples.md#rust---cargo

but the cache in windows still cannot work, seems actions/toolkit#670 could fix it, need to wait github to bump a new version to include this fix

[casey]

Thanks for this PR! Does the actions/cache@v1 work in Windows, or is it newly broken in v2?

[zyctree]

actions/cache@v1 is broken in Windows

from the output of the last action job, https://github.com/casey/just/runs/1546397193?check_suite_focus=true,

Post job cleanup.
"C:\Program Files\Git\usr\bin\tar.exe" -cz -f D:\a\_temp\d43ac80a-b321-468c-9777-c01c94d9a40b\cache.tgz -C C:\Users\runneradmin\.cargo\registry
~\.cargo\git
target .
/usr/bin/tar: ~.cargogit: Cannot stat: No such file or directory
/usr/bin/tar: target: Cannot stat: No such file or directory
tar (child): Cannot connect to D: resolve failed
/usr/bin/tar: D\:\\a\\_temp\\d43ac80a-b321-468c-9777-c01c94d9a40b\\cache.tgz: Cannot write: Broken pipe
/usr/bin/tar: Child returned status 128
/usr/bin/tar: Error is not recoverable: exiting now

it uses actions/cache@v1 , and resolve ~.cargo\git to ~.cargogit, looks like it cannot handle \ in windows. i guess it is using linux (wsl or mingw) version of tar

[casey]

Gotcha, thanks for the explanation. I wasn't even aware that caching was broken on Windows!