Dear Maintainer,

This package FTBFS on arm64 because it timeouts on some tests
(https://tests.reproducible-builds.org/debian/rb-pkg/unstable/arm64/node-gulp-coffee.html).
In Ubuntu, we fixed that with the following patch, it was successfully
published
(https://launchpad.net/ubuntu/+source/node-gulp-coffee/3.0.2-1ubuntu1)

Thanks for considering the patch.