this derivation will be built:
  /nix/store/gjkxl2x59bap3imp8b33zr1zgg0p7948-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/gjkxl2x59bap3imp8b33zr1zgg0p7948-bcachefs-module-7.0.0-39-generic.drv'...