Issue

Files not created by the local user may fail when restored from the cache as tar preserves file permissions. Permission errors can also occur when the current user does not have permissions to read files when creating the cache. This is likely just a Linux and/or macOS issue (all the reports are Linux)

Reports

• Permission denied during cache store #11
• Error while extracting cache containing executable binaries #117
• Cache can not be restored #130
• Cache files created as root #131

Possible solutions

1. Run tar with sudo
   • What are the downsides of this approach?