these 3 derivations will be built:
  /nix/store/r5njayclzkqkrwhssppqsny2s1pavhvp-source.drv
  /nix/store/d3ij68i8m527irs1vb54wfqlihi4f0in-apm-0.34.0.drv
  /nix/store/50hlhpw14z4zr4j91661cm384wky89gv-check-apm.drv