these 4 derivations will be built:
  /nix/store/j9n2r8kzxmgdxc762709ia9hia573p6a-devshell-env.bash.drv
  /nix/store/qj7y1svsnm9cl4wrw84v35bypzvng95d-menu.drv
  /nix/store/zhqgazlf37yifi0i1bbkx4dq32fqnsmr-devshell-dir.drv
  /nix/store/36d66amfh4gx8ima0wh9mmiir8zwksll-devshell.drv