from up-to-date b2g checkout from git: $ ./mach mercurial-setup It looks like you are trying to run an unknown mach command: mercurial-setup $ ./mach help (usage & global options stripped) Testing: Run tests. xpcshell-test Run XPCOM Shell tests (API direct unit testing) Disabled: These commands are unavailable for your current context, run "mach <command>" to see why.
This doesn't appear right at all. Pretty sure b2g's mach has more than just "xpcshell-test." But I have no clue who maintains b2g's mach commands. You should ask around in some b2g IRC channels. :/
Mass close of b2g-related build system bugs that aren't about cleanup.