bors 6696447f78 Auto merge of #128761 - matthiaskrgr:rollup-5p1mlqq, r=matthiaskrgr
Rollup of 9 pull requests

Successful merges:

 - #124944 (On trait bound mismatch, detect multiple crate versions in dep tree)
 - #125048 (PinCoerceUnsized trait into core)
 - #128406 (implement BufReader::peek)
 - #128539 (Forbid unused unsafe in vxworks-specific std modules)
 - #128687 (interpret: refactor function call handling to be better-abstracted)
 - #128692 (Add a triagebot mention for `library/Cargo.lock`)
 - #128710 (Don't ICE when getting an input file name's stem fails)
 - #128718 (Consider `cfg_attr` checked by `CheckAttrVisitor`)
 - #128751 (std:🧵 set_name implementation proposal for vxWorks.)

r? `@ghost`
`@rustbot` modify labels: rollup
2024-08-07 00:46:06 +00:00
..
2024-08-02 11:34:54 +00:00
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UI Tests

This folder contains rustc's UI tests.

Test Directives (Headers)

Typically, a UI test will have some test directives / headers which are special comments that tell compiletest how to build and intepret a test.

As part of an on-going effort to rewrite compiletest (see https://github.com/rust-lang/compiler-team/issues/536), a major change proposal to change legacy compiletest-style headers // <directive> to ui_test-style headers //@ <directive> was accepted (see https://github.com/rust-lang/compiler-team/issues/512.

An example directive is ignore-test. In legacy compiletest style, the header would be written as

// ignore-test

but in ui_test style, the header would be written as

//@ ignore-test

compiletest is changed to accept only //@ directives for UI tests (currently), and will reject and report an error if it encounters any comments // <content> that may be parsed as an legacy compiletest-style test header. To fix this, you should migrate to the ui_test-style header //@ <content>.