^ 'rm' always looks fishy to me -- also note, that the string '/var/lib/reaver' appears in the binary.

They are all directories:

$ find work/stage/var | xargs file
work/stage/var:            directory
work/stage/var/lib:        directory
work/stage/var/lib/reaver: directory

These probably need to be fixed upstream. I reported this but their answer wasn't meaningful.
Directories shouldn't be needed. But I didn't try the port myself.

Github displays the README.md automatically. WWW should be the site, not a specific file.