this derivation will be built:
  /nix/store/mspbcvrw5sxkbmhs4f9kr9s6nwawg836-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/mspbcvrw5sxkbmhs4f9kr9s6nwawg836-bcachefs-module-7.0.0-39-generic.drv'...