these 5 derivations will be built:
  /nix/store/7v7ayz2ckb38sj96zbr2y07mf0xnx5fb-web-2.7.2.tgz.drv
  /nix/store/4m3hwiw6fc3m52afxix12yywgvkwyrxy-openchamber-src-with-lock.drv
  /nix/store/q20qwqqkkaalv36jaxyxqxcq6lj37rfp-openchamber-2.7.2-npm-deps.drv
  /nix/store/jvxi4yjbp0iabjky4jkyi195n4dbxd08-openchamber-2.7.2.drv
  /nix/store/iykx8mkzz6kwxz4wm8rxm0w395l9ylzs-check-openchamber.drv