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Compiler panics when generating documentation on full disk #41813

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Kixunil opened this issue May 7, 2017 · 1 comment
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Compiler panics when generating documentation on full disk #41813

Kixunil opened this issue May 7, 2017 · 1 comment
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C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

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@Kixunil
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Kixunil commented May 7, 2017

When running cargo doc, rustc panics if disk is full. Not a huge issue, just an invalid call of .unwrap() and since the message says it's a bug, I'm filling a report.

Error message (with removed file path):

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/blob/master/CONTRIBUTING.md#bug-reports

thread 'rustc' panicked at 'failed to generate documentation: Error { file: <path removed>", error: Error { repr: Os { code: 28, message: "No space left on device" } } }', /checkout/src/libcore/result.rs:859
note: Run with `RUST_BACKTRACE=1` for a backtrace.

Might be related to #20438 somehow?

$ rustc --version
rustc 1.17.0 (56124baa9 2017-04-24)
@nagisa nagisa added I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ I-papercut labels May 8, 2017
@Mark-Simulacrum Mark-Simulacrum added C-bug Category: This is a bug. and removed I-papercut labels Jul 22, 2017
@ishanjain28
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This also happened with me today.
The compiler starts panicing if you try to, Generate Documentation, Run, Compile or run cargo check.

Maybe It should print a clear message and exit instead of panicing like that.

Rust Version: 1.21.0

@euclio euclio mentioned this issue Nov 13, 2018
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euclio added a commit to euclio/rust that referenced this issue Dec 5, 2018
@euclio
emit error when doc generation fails
c359f98 
Fixes rust-lang#41813.
bors added a commit that referenced this issue Dec 5, 2018
@bors
Auto merge of #55933 - euclio:doc-panic, r=QuietMisdreavus
14997d5 
emit error when doc generation fails

Fixes #41813.

The diagnostic looks something like this:

```
error: couldn't generate documentation: No space left on device (os error 28)
  |
  = note: failed to create or modify "/path/to/crate/target/doc/src/lazycell"
```
@ollie27 ollie27 mentioned this issue Apr 9, 2019
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C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️
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@nagisa @Kixunil @Mark-Simulacrum @ishanjain28