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@klensy klensy commented Jul 28, 2022

Example (https://github.com/rust-lang-ci/rust/runs/7551453940?check_suite_focus=true#step:25:15008):

 duplicate artifacts found when compiling a tool, this typically means that something was recompiled because a transitive dependency has different features activated than in a previous build:

the following dependencies are duplicated although they have the same features enabled:
the following dependencies have different features:
  memchr 2.5.0 (registry+https://github.com/rust-lang/crates.io-index)
    `clippy-driver` additionally enabled features {} at "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-freebsd/release/deps/libmemchr-44aa6ff4f08e293f.rlib"
    `cargo` additionally enabled features {"use_std"} at "/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-tools/x86_64-unknown-freebsd/release/deps/libmemchr-70e29af0fd3ef292.rlib"

Notice that no info printed under the following dependencies are duplicated although they have the same features enabled:

@rustbot rustbot added the T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) label Jul 28, 2022
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r? @jyn514

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jul 28, 2022
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jyn514 commented Jul 31, 2022

Because it confused me at first: if one of the sets is empty, this is still a bug, because the other set must be non-empty if we've gotten to this point at the code. This PR is just improving the error message, not changing the behavior.

@bors r+ rollup

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bors commented Jul 31, 2022

📌 Commit 3395094 has been approved by jyn514

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jul 31, 2022
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 1, 2022
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#99340 (Fix ICE in Definitions::create_def)
 - rust-lang#99629 (Improve `cannot move out of` error message)
 - rust-lang#99864 (bootstrap: don't emit warn about duplicated deps with same/different features if some of sets actually empty)
 - rust-lang#99911 (Remove some uses of `guess_head_span`)
 - rust-lang#99976 (Make Rustdoc exit with correct error code when scraping examples from invalid files)
 - rust-lang#100003 (Improve size assertions.)
 - rust-lang#100012 (Avoid `Ty` to `String` conversions)
 - rust-lang#100020 (better error when python is not found in x - issue rust-lang#99648)

Failed merges:

 - rust-lang#99994 (Replace `guess_head_span` with `opt_span`)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 1530ed8 into rust-lang:master Aug 1, 2022
@rustbot rustbot added this to the 1.64.0 milestone Aug 1, 2022
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5 participants