this derivation will be built:
  /nix/store/1lv6z5ybz8nn619h3gimxz427p72bkq1-niks3-tests-1.4.0.drv
error: Cannot build '/nix/store/1lv6z5ybz8nn619h3gimxz427p72bkq1-niks3-tests-1.4.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ixwph7j4r7clfajpbpnqy3cszhr14s3g-niks3-tests-1.4.0
       Last 13 log lines:
       > tribuchet: building on jamie
       > Running phase: unpackPhase
       > unpacking source archive /nix/store/7m9m96q8vhxvzvjfw3qmkf2xh7mq71ma-source
       > source root is source
       > Running phase: patchPhase
       > Running phase: updateAutotoolsGnuConfigScriptsPhase
       > Running phase: configurePhase
       > Running phase: buildPhase
       > server/client_pushes_test.go:22:69: pushOverlappingPaths - result 1 ([]string) is never used (unparam)
       > func pushOverlappingPaths(t *testing.T, announce bool) (*pushCalls, []string, string) {
       >                                                                     ^
       > 1 issues:
       > * unparam: 1
       For full logs, run:
         nix log /nix/store/1lv6z5ybz8nn619h3gimxz427p72bkq1-niks3-tests-1.4.0.drv