this derivation will be built:
  /nix/store/l3dhsnyrhh2am5nsj2s7q08qk0f4p5jk-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/l3dhsnyrhh2am5nsj2s7q08qk0f4p5jk-bcachefs-module-7.0.0-29-generic.drv'...