20190824T153002Z.fail.html.gz
```
/home/gentoo/chkbuild/tmp/build/20190824T153002Z/ruby/tool/lib/vcs.rb:577:in `export_changelog': cannot find the beginning revision of the branch (RuntimeError)
from ./tool/make-snapshot:353:in `block in package'
from ./tool/make-snapshot:351:in `chdir'
from ./tool/make-snapshot:351:in `package'
from ./tool/make-snapshot:523:in `block in <main>'
from ./tool/make-snapshot:523:in `collect'
from ./tool/make-snapshot:523:in `<main>'
```