this derivation will be built:
  /nix/store/332c1n4l5bc2cbfyzwjhz15jmsdvihvh-pg_regress-15.19.drv
building '/nix/store/332c1n4l5bc2cbfyzwjhz15jmsdvihvh-pg_regress-15.19.drv' on 'ssh-ng://nixbot-remote-build@78.232.36.247'
building '/nix/store/332c1n4l5bc2cbfyzwjhz15jmsdvihvh-pg_regress-15.19.drv'
pg_regress-15.19> Running phase: installPhase