this derivation will be built:
  /nix/store/9hfpqjmi6w59s2sczkb3caly4h1x02jn-spec-black.drv
building '/nix/store/9hfpqjmi6w59s2sczkb3caly4h1x02jn-spec-black.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=23&system=aarch64-linux'
building '/nix/store/9hfpqjmi6w59s2sczkb3caly4h1x02jn-spec-black.drv' on farm.numtide.com:50051
spec-black> elastic-arm-0b1d6a93: building 9hfpqjmi6w59s2sczkb3caly4h1x02jn-spec-black.drv
spec-black> reformatted deep/x/y/a.py
spec-black> reformatted shallow/a.py
spec-black> 
spec-black> All done! ✨ 🍰 ✨
spec-black> 2 files reformatted.
spec-black> All done! ✨ 🍰 ✨
spec-black> 1 file left unchanged.
spec-black> error: cannot format invalid/a.py: Cannot parse: 1:6
spec-black>     def f(:
spec-black>          ^
spec-black> ParseError: bad input
spec-black> 
spec-black> Oh no! 💥 💔 💥
spec-black> 1 file failed to reformat.
spec-black> error: cannot format invalid/a.py: Cannot parse: 1:6
spec-black>     def f(:
spec-black>          ^
spec-black> ParseError: bad input
spec-black> 
spec-black> Oh no! 💥 💔 💥
spec-black> 1 file left unchanged, 1 file failed to reformat.

upload niks3: ok