Commits on Aug 26, 2023

1. automata: fix incorrect use of Aho-Corasick's "standard" semantics …

   This fixes a bug in how prefilters were applied for multi-regexes
   compiled with "all" semantics. It turns out that this corresponds to the
   regex crate's RegexSet API, but only its `is_match` routine.
   
   See the comment on the regression test added in this PR for an
   explanation of what happened. Basically, it came down to incorrectly
   using Aho-Corasick's "standard" semantics, which doesn't necessarily
   report leftmost matches. Since the regex crate is really all about
   leftmost matching, this can lead to skipping over parts of the haystack
   and thus lead to missing matches.
   
   Fixes #1070

   

   BurntSushi committed Aug 26, 2023
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2. ci: drop mips, add powerpc and s390x …

   The main reason we used mips before was to get test coverage on a big
   endian target. Now that mips no longer seems to work[1], I wanted to
   add at least one other big endian target. From the tier 2 supported
   platforms[2], the only big endian targets I could find were powerpc and
   s390x. So we just add both here.
   
   [1]: rust-lang/compiler-team#648
   [2]: https://doc.rust-lang.org/nightly/rustc/platform-support.html#tier-2-with-host-tools

   

   BurntSushi committed Aug 26, 2023
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