these 2 derivations will be built:
  /nix/store/062p1vfhg64346jrlg7fas37z1kzrbsi-nixos-test-driver-pg_partman.drv
  /nix/store/m5kn9zirygai78lbxwlmr5nf66vfbiqf-vm-test-run-pg_partman.drv