match: de-flake test-doctest.py by not depending on util.dirs() order util.dirs() yields directories in arbitrary order, which has made test-doctest.py flaky. I think they have been flaky since d8e55c0c642c (util: make util.dirs() and util.finddirs() include root directory (API), 2017-05-16). Before that commit, I think util.dirs() would return at most one entry, so there was only one iteration order. This patch fixes the problem by making _rootsdirsandparents() return a set (whose __str__() is defined to be in sorted order, I believe). The only caller wanted a set anyway. Differential Revision: https://phab.mercurial-scm.org/D6432

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# Rust builds with a modern MSVC and uses a newer CRT.

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# Python 2.7 has a shared library dependency on an older CRT (msvcr90.dll).

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# We statically link the modern CRT to avoid multiple msvcr*.dll libraries

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# being loaded and Python possibly picking up symbols from the newer runtime

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# (which would be loaded first).

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[target.'cfg(target_os = "windows")']

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rustflags = ["-Ctarget-feature=+crt-static"]