Gnome Commander is now continuously integrated in Travis. I configured the service file to have Gnome Commander build inside a Ubuntu 17.04 Container for each Git commit in the master, gcmd-1-4 and gcmd-1-6 branch.
See here for the latest build history: https://travis-ci.org/gcmd/gnome-commander.
The build badge is shown on the Gcmd homepage: https://gcmd.github.io/dev.html