these 2 derivations will be built:
  /nix/store/zc86s58ynzbvyp90cq76pvrdpmz48bxx-nixos-test-driver-pg_partman.drv
  /nix/store/n57jhrghddll94j508qwd0a7dr3dn8q2-vm-test-run-pg_partman.drv