warning: could not read HEAD ref from repo at '/var/lib/nixbot/worktrees/effect-756', using 'master'
building '/nix/store/xyrxs6vi4r9x8aqzsf7sdf6m14d6j363-inputDerivation-effect-env.drv' on 'ssh-ng://nix@jamie'...
copying path '/nix/store/zi2bj2hlavv8q743li2s9diqbcpmrf9b-hello-2.12.3' from 'https://cache.nixos.org'...
building '/nix/store/xyrxs6vi4r9x8aqzsf7sdf6m14d6j363-inputDerivation-effect-env.drv'...
copying 1 paths...
copying path '/nix/store/wz1v52jfmydgp698rhh8y2yvdhw9fbzq-inputDerivation-effect-env' from 'ssh-ng://nix@jamie'...