this derivation will be built:
  /nix/store/s2vrjhq6d9mqr5kdij15fchrah9s4ww4-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/s2vrjhq6d9mqr5kdij15fchrah9s4ww4-bcachefs-module-7.0.0-39-generic.drv'...