contrib: install PyOxidizer in Linux and Windows environments
For Linux, this was trivial.
For Windows, we need to teach the powershell script to install
Rust as well. This was also pretty straightforward.
Differential Revision: https://phab.mercurial-scm.org/D8468
#require serve
$ hg clone http://localhost:$HGPORT/ copy
abort: * (glob)
[255]
$ test -d copy
[1]
$ "$PYTHON" "$TESTDIR/dumbhttp.py" -p $HGPORT --pid dumb.pid
$ cat dumb.pid >> $DAEMON_PIDS
$ hg clone http://localhost:$HGPORT/foo copy2
abort: HTTP Error 404: * (glob)
[255]
$ killdaemons.py