this derivation will be built:
  /nix/store/sl62a1q3g0x7v3zxsj73z4yssbjhl2bh-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/sl62a1q3g0x7v3zxsj73z4yssbjhl2bh-bcachefs-module-7.0.0-38-generic.drv'...