Brew upgrade fails with 'exited with 255. Here's the output' #1953
Description
I'm on macOS Catalina v10.15.7 and when I try to do an upgrade I get this error:
brew upgrade coursier/formulas/coursier
Updating Homebrew...
==> Upgrading 1 outdated package:
coursier/formulas/coursier 2.0.7 -> 2.0.8
==> Upgrading coursier/formulas/coursier 2.0.7 -> 2.0.8
==> Downloading https://github.com/coursier/coursier/releases/download/v2.0.8/coursier
Already downloaded: /Users/12345/Library/Caches/Homebrew/downloads/e5a604b3e5746c7927b63499db5a31c058cdefeede35d65aad9c95d429129112--coursier
==> Downloading https://github.com/coursier/coursier/releases/download/v2.0.8/cs-x86_64-apple-darwin
Already downloaded: /Users/12345/Library/Caches/Homebrew/downloads/8e62f9414bb6908c4c4cf040944ba6f9e0922489d975e5bea44f1933993e8ba6--cs-x86_64-apple-darwin
Error: Failure while executing; `/usr/local/Cellar/coursier/2.0.8/bin/coursier\ --completions\ zsh` exited with 255. Here's the output:There is no error output so I'm unclear where the problem is and what is causing the 255.