these 3 derivations will be built:
  /nix/store/2h9fhzx8fn4b71b3n7gpa6dqp4h99kqs-jscpd-5.4.2-vendor.drv
  /nix/store/j74gkg0jr54vd352w5cxbkxxjhyzdz66-jscpd-5.4.2.drv
  /nix/store/bj2hcxp5kzgvc90dpsryhj7804dbh4h7-check-jscpd.drv