this derivation will be built:
  /nix/store/7yls3zy620iy7lmld5zy0b9gp0bdlgg6-niks3-tests-1.15.0.drv
error: Cannot build '/nix/store/7yls3zy620iy7lmld5zy0b9gp0bdlgg6-niks3-tests-1.15.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/56sc2kmknffgn45kc52hpv8zbb6q54s3-niks3-tests-1.15.0
       Last 13 log lines:
       > tribuchet: building on mac02
       > Running phase: unpackPhase
       > unpacking source archive /nix/store/i57bynflq8l82kxlw37qfv5xn5scq2f7-source
       > source root is source
       > Running phase: patchPhase
       > Running phase: updateAutotoolsGnuConfigScriptsPhase
       > Running phase: configurePhase
       > Running phase: buildPhase
       > client/client.go:265:18: func (*Client).putBytes is unused (unused)
       > func (c *Client) putBytes(ctx context.Context, url string, data []byte) (*http.Response, error) {
       >                  ^
       > 1 issues:
       > * unused: 1
       For full logs, run:
         nix log /nix/store/7yls3zy620iy7lmld5zy0b9gp0bdlgg6-niks3-tests-1.15.0.drv