Raw error output:
Problem while applying patch in revision 187952:
hg error in cmd: hg import --no-commit -s 95 /tmp/tmp1htonifp: applying /tmp/tmp1htonifp
patching file tools/tryselect/selectors/chooser/__init__.py
Hunk #3 FAILED at 102
1 out of 3 hunks FAILED -- saving rejects to file tools/tryselect/selectors/chooser/__init__.py.rej
abort: patch failed to apply