these 3 derivations will be built:
  /nix/store/9k5hy5imvwd1p8qijlpkyvgpj7d3s5wz-DockerSandboxes-darwin.tar.gz.drv
  /nix/store/gj3mjwvskqw9mfciv0p040cws6v1w4pc-docker-sbx-0.53.0.drv
  /nix/store/dcdcv2svyyx8hdrga0j8h55q49blmllp-check-docker-sbx.drv