these 2 derivations will be built:
  /nix/store/s5vhcngic7hzba6zrp9xq5pf3l1ydjv5-pg_regress-15.19.drv
  /nix/store/g6yk8rjja4045077g8ya8fz0g3kblbdh-docker-image-test.drv
building '/nix/store/s5vhcngic7hzba6zrp9xq5pf3l1ydjv5-pg_regress-15.19.drv' on 'ssh-ng://nixbot-remote-build@78.232.36.247'
building '/nix/store/s5vhcngic7hzba6zrp9xq5pf3l1ydjv5-pg_regress-15.19.drv'
pg_regress-15.19> Running phase: installPhase
building '/nix/store/g6yk8rjja4045077g8ya8fz0g3kblbdh-docker-image-test.drv' on 'ssh-ng://nixbot-remote-build@78.232.36.247'
building '/nix/store/g6yk8rjja4045077g8ya8fz0g3kblbdh-docker-image-test.drv'