Fix doc duplicate removal of root units. #9276
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I think this is also a candidate for beta. |
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@bors: r+ Makes sense to me to backport yeah |
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…excrichton Fix doc duplicate removal of root units. The doc collision removal code didn't consider the possibility that there was a collision with a root unit. This caused problems in conjunction with rust-lang#9142 where cargo would panic because a root unit got removed from the graph because of a filename collision. The solution here is to avoid removing root units during the doc collision sweep. This has a downside that this reintroduces a filename collision. An alternate solution would be to make the set of root units mutable, and remove from that list, but I figured this is simpler and more conservative. Fixes rust-lang#9274
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Update cargo 8 commits in 32da9eaa5de5be241cf8096ca6b749a157194f77..90691f2bfe9a50291a98983b1ed2feab51d5ca55 2021-03-13 01:18:40 +0000 to 2021-03-16 21:36:55 +0000 - Add report if `cargo fix --edition` changes features. (rust-lang/cargo#9268) - Fix --feature pkg/feat for V1 resolver for non-member. (rust-lang/cargo#9275) - Fix doc duplicate removal of root units. (rust-lang/cargo#9276) - Add CLI help text for patch-in-config (rust-lang/cargo#9271) - Document `-Zpatch-in-config` (rust-lang/cargo#9270) - Support [patch] in .cargo/config files (rust-lang/cargo#9204) - Add `--future-incompat-report` support to `cargo test` (rust-lang/cargo#9264) - 🍱 Crop favicon (rust-lang/cargo#9262)
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The doc collision removal code didn't consider the possibility that there was a collision with a root unit. This caused problems in conjunction with #9142 where cargo would panic because a root unit got removed from the graph because of a filename collision. The solution here is to avoid removing root units during the doc collision sweep.
This has a downside that this reintroduces a filename collision.
An alternate solution would be to make the set of root units mutable, and remove from that list, but I figured this is simpler and more conservative.
Fixes #9274