this derivation will be built:
  /nix/store/c4fzfi67n814qbd118421i4n9y8k2jg5-bcachefs-module-7.1.3-arch2-1.drv
building '/nix/store/c4fzfi67n814qbd118421i4n9y8k2jg5-bcachefs-module-7.1.3-arch2-1.drv'...