this derivation will be built:
  /nix/store/r4alfm003a0sp1v1wzxzzbqf4w1myl31-bcachefs-module-7.0.0-26-generic.drv
building '/nix/store/r4alfm003a0sp1v1wzxzzbqf4w1myl31-bcachefs-module-7.0.0-26-generic.drv'...