these 11 derivations will be built:
  /nix/store/9kjd2mij8315v6b7wc0gr3fd9czrk0hf-unit-harmonia-dev.service.drv
  /nix/store/gwyrgsyy8fz0pbmyvmw8vz5i58ldvv3g-system-units.drv
  /nix/store/95xqrgc7iyzr8z1a2rdy9fcx35wsk5ca-etc.drv
  /nix/store/qmhz2ngkz1v13fskyxg7vbshzaxy3dn8-activate.drv
  /nix/store/yh8qixdla098b4dmi0glbkk86vb1k5iq-nixos-system-harmonia-test.drv
  /nix/store/h6kr8435xp1vr5a3nfgwvcj3h57x1ib9-closure-info.drv
  /nix/store/x91gajdj64h4ndra0fjn52015k50a3p9-run-nixos-vm.drv
  /nix/store/k5mk1cwyl6pjkw1k6mnkmxr5yrhmfhjd-nixos-vm.drv
  /nix/store/x8fixvi1l71b1bk6bb991gmr58kjqc6m-driverConfiguration.json.drv
  /nix/store/qxj5bnkfd2jwn8w9m003m94pv1dvdi4n-nixos-test-driver-basic.drv
  /nix/store/70s94jkgys44hzl92m9bc438glh1vp2a-vm-test-run-basic.drv
building '/nix/store/9kjd2mij8315v6b7wc0gr3fd9czrk0hf-unit-harmonia-dev.service.drv'
unit-harmonia-dev.service> tribuchet: building on jamie
unit-harmonia-dev.service> structuredAttrs is enabled
building '/nix/store/gwyrgsyy8fz0pbmyvmw8vz5i58ldvv3g-system-units.drv'
system-units> tribuchet: building on jamie
building '/nix/store/95xqrgc7iyzr8z1a2rdy9fcx35wsk5ca-etc.drv'
etc> tribuchet: building on jamie
building '/nix/store/qmhz2ngkz1v13fskyxg7vbshzaxy3dn8-activate.drv'
activate> tribuchet: building on jamie
activate> structuredAttrs is enabled
building '/nix/store/yh8qixdla098b4dmi0glbkk86vb1k5iq-nixos-system-harmonia-test.drv'
nixos-system-harmonia-test> tribuchet: building on jamie
nixos-system-harmonia-test> structuredAttrs is enabled