this derivation will be built:
  /nix/store/dr9cwiflmn899qkrycs0s8n5l95xi78i-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/dr9cwiflmn899qkrycs0s8n5l95xi78i-bcachefs-module-7.0.0-39-generic.drv'...