this derivation will be built:
  /nix/store/v5lcwrv4fc66vp3qwjr2qvlmh35kw4lj-this-will-fail.drv
error: Cannot build '/nix/store/v5lcwrv4fc66vp3qwjr2qvlmh35kw4lj-this-will-fail.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/747ygh04j0frfyrc1w3ygbafvgg4b6zy-this-will-fail
       Last 8 log lines:
       > tribuchet: building on jamie
       > Running phase: patchPhase
       > Running phase: updateAutotoolsGnuConfigScriptsPhase
       > Running phase: configurePhase
       > no configure script, doing nothing
       > Running phase: buildPhase
       > this is a phased test failure
       > error: intentional failure in buildPhase
       For full logs, run:
         nix log /nix/store/v5lcwrv4fc66vp3qwjr2qvlmh35kw4lj-this-will-fail.drv