packaging: enable rust extensions on centos
Test on CentOS 7, repository with ~170000 tracked files,
no untracked files:
10 runs with this enabled:
-- Run #0 time: 0.6519973278045654
-- Run #1 time: 0.6933724880218506
-- Run #2 time: 0.7512078285217285
-- Run #3 time: 0.7517638206481934
-- Run #4 time: 0.5966529846191406
-- Run #5 time: 0.5960886478424072
-- Run #6 time: 0.5940573215484619
-- Run #7 time: 0.5963726043701172
-- Run #8 time: 0.6048009395599365
-- Run #9 time: 0.603604793548584
10 runs without this enabled:
-- Run #0 time: 2.127584457397461
-- Run #1 time: 2.066192865371704
-- Run #2 time: 2.0831892490386963
-- Run #3 time: 2.077716588973999
-- Run #4 time: 2.07608962059021
-- Run #5 time: 2.072899341583252
-- Run #6 time: 2.094369888305664
-- Run #7 time: 2.067504644393921
-- Run #8 time: 2.069610834121704
-- Run #9 time: 2.0567898750305176
Differential Revision: https://phab.mercurial-scm.org/D9294
Mercurial
=========
Mercurial is a fast, easy to use, distributed revision control tool
for software developers.
Basic install::
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
Running without installing::
$ make local # build for inplace usage
$ ./hg --version # should show the latest version
See https://mercurial-scm.org/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.