this derivation will be built:
  /nix/store/5qvcggp907gkfwfm05gi96xzm8vzal5n-this-will-fail.drv
building '/nix/store/5qvcggp907gkfwfm05gi96xzm8vzal5n-this-will-fail.drv'
this-will-fail> tribuchet: building on jamie
this-will-fail> Running phase: patchPhase
this-will-fail> Running phase: updateAutotoolsGnuConfigScriptsPhase
this-will-fail> Running phase: configurePhase
this-will-fail> no configure script, doing nothing
this-will-fail> Running phase: buildPhase
this-will-fail> this is a phased test failure
this-will-fail> error: intentional failure in buildPhase
error: Cannot build '/nix/store/5qvcggp907gkfwfm05gi96xzm8vzal5n-this-will-fail.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/1jwskk2vkrfsbyi6ji05idcd3fd7wz3z-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/5qvcggp907gkfwfm05gi96xzm8vzal5n-this-will-fail.drv