rustdoc: Fix ICE report #92310
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rustdoc: Fix ICE report #92310
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r? @estebank (rust-highfive has picked a reviewer for you, use r? to override) |
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I'd always wondered why it reported an argument error... |
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Ah, cool, the strange behaviour in #93579 is explained :-). Thanks for fixing. |
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@bors r+ |
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📌 Commit 4413141 has been approved by |
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rustdoc: Fix ICE report The ICE report in rustdoc was confusing because it was returning an argument parse error: ``` thread 'rustc' panicked at 'aborting due to `-Z treat-err-as-bug=1`', compiler/rustc_errors/src/lib.rs:1212:27 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace error: internal compiler error: unexpected panic error: Unrecognized option: 'crate-version' ``` This is because the ICE reporter was trying to parse the arguments as rustc, not rustdoc. Since an argument error is a fatal error, it was early-exiting with the argument error due to unwinding. This changes it to be a more primitive scan of the arguments. The arguments being checked are pretty simple, and only have a small handful of forms that are easy to check for. It now looks like this: ``` thread 'rustc' panicked at 'aborting due to `-Z treat-err-as-bug=1`', compiler/rustc_errors/src/lib.rs:1212:27 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace error: internal compiler error: unexpected panic note: the compiler unexpectedly panicked. this is a bug. note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md note: rustc 1.59.0-dev running on x86_64-apple-darwin note: compiler flags: --crate-type lib -Z treat-err-as-bug note: some of the compiler flags provided by cargo are hidden query stack during panic: end of query stack ``` It still says `rustc`, but I can live with that.
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Rollup of 7 pull requests Successful merges: - rust-lang#92310 (rustdoc: Fix ICE report) - rust-lang#92802 (Deduplicate lines in long const-eval stack trace) - rust-lang#93515 (Factor convenience functions out of main printer implementation) - rust-lang#93566 (Make rustc use `RUST_BACKTRACE=full` by default) - rust-lang#93589 (Use Option::then in two places) - rust-lang#93600 (fix: Remove extra newlines from junit output) - rust-lang#93606 (Correct incorrect description of preorder traversals) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
This was referenced Sep 8, 2022
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Sep 10, 2022
Fix ICE report flags display. rust-lang#92310 made some changes to the ICE report that displays the rustc flags, but it introduced a bug where a flag like `-Z incremental-verify-ich=yes` was being treated as-if it was `-Cincremental`. This corrupted the output and made it confusing. The cause was using `starts_with` instead of properly splitting the option. For example, with the command like `rustc foo.rs -Cincremental=/tmp/a -Zincremental-verify-ich=yes --crate-type lib` would previously look like: ``` note: compiler flags: -C incremental -Z incremental --crate-type lib ``` It now looks like: ``` note: compiler flags: -C incremental=[REDACTED] -Z incremental-verify-ich=yes --crate-type lib ``` I added a `[REDACTED]` marker for `-Cincremental` so it is a little less confusing that a value has been removed. Fixes rust-lang#101588
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The ICE report in rustdoc was confusing because it was returning an argument parse error:
This is because the ICE reporter was trying to parse the arguments as rustc, not rustdoc. Since an argument error is a fatal error, it was early-exiting with the argument error due to unwinding.
This changes it to be a more primitive scan of the arguments. The arguments being checked are pretty simple, and only have a small handful of forms that are easy to check for.
It now looks like this:
It still says
rustc, but I can live with that.