It's not installed under ~/.hgrc armenzg@armenzg-thinkpad:~/repos/mozilla-central$ ./mach try -b o -p linux64 -u none mach try is under development, please file bugs blocking 1149670. hg: unknown command 'push-to-try' Mercurial Distributed SCM basic commands: add add the specified files on the next commit annotate show changeset information by line for each file clone make a copy of an existing repository commit commit the specified files or all outstanding changes diff diff repository (or selected files) export dump the header and diffs for one or more changesets forget forget the specified files on the next commit init create a new repository in the given directory log show revision history of entire repository or files merge merge another revision into working directory pull pull changes from the specified source push push changes to the specified destination qdiff diff of the current patch and subsequent modifications qnew create a new patch qpop pop the current patch off the stack qpush push the next patch onto the stack qrefresh update the current patch remove remove the specified files on the next commit serve start stand-alone webserver status show changed files in the working directory summary summarize working directory state update update working directory (or switch revisions) (use "hg help" for the full list of commands or "hg -v" for details) ERROR hg command ['hg', 'push-to-try', '-m', '\ntry: -b o -p linux64 -u none -t none \n'] returned 255 The "push-to-try" hg extension is required to push from hg to try with the autotry command. It can be installed by running ./mach mercurial-setup armenzg@armenzg-thinkpad:~/repos/mozilla-central$ grep "push" ~/.hgrc | wc 0 0 0

Thank you for the bug report. push-to-try requires mercurial 3.3 or above (the error message should mention this, but let's establish this is the issue). Does upgrading mercurial fix this?

Yes :) hg --version --> 3.2.4 sudo pip install Mercurial --upgrade hg --version --> 3.5.1 ./mach mercurial-setup armenzg@armenzg-thinkpad:~/repos/mozilla-central$ grep "push-to-try" ~/.hgrc push-to-try = /home/armenzg/.mozbuild/version-control-tools/hgext/push-to-try

Bug 1203598 - Mention the required mercurial version when suggesting a user install the "push-to-try" extension. r=armenzg

Comment on attachment 8659430 [details] MozReview Request: Bug 1203598 - Mention the required mercurial version when suggesting a user install the "push-to-try" extension. r=armenzg https://reviewboard.mozilla.org/r/18829/#review16829