Rework `feature(precise_capturing)` to represent `use<...>` as a syntactical bound
Reworks `precise_capturing` for a recent lang-team consensus.
Specifically:
> The conclusion of the team is that we'll make use<..> a bound. That is, we'll support impl use<..> + Trait, impl Trait + use<..>, etc.
> For now, we will support at most one such bound in a list of bounds, and semantically we'll only support these bounds in the item bounds of RPIT-like impl Trait opaque types (i.e., in the places discussed in the RFC).
Lang decision in favor of this approach:
- https://github.com/rust-lang/rust/issues/125836#issuecomment-2151351849
Tracking:
- https://github.com/rust-lang/rust/issues/123432
Migrate `extern-flag-fun`, `incremental-debugger-visualiser` and `incremental-session-fail` `run-make` tests to `rmake.rs`
Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).
try-job: arm-android
try-job: armhf-gnu
try-job: test-various
try-job: x86_64-msvc
try-job: dist-i686-mingw
Migrate `link-arg`, `link-dedup` and `issue-26092` `run-make` tests to `rmake` format
Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).
All of these tests check if rustc's output contains (or does not) contain certain strings. Does that mean these could be better suited to becoming UI/codegen tests?
try-job: x86_64-msvc
Pass target to some run-make tests
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While trying to enable riscv64gc in https://github.com/rust-lang/rust/pull/125669, I noticed several tests failing in https://github.com/rust-lang/rust/actions/runs/9454116367/job/26040977376. I spoke a bit with `@pietroalbini` and he recommended this approach to resolving the issue.
This PR interacts with https://github.com/rust-lang/rust/pull/126279, and it is likely preferable that https://github.com/rust-lang/rust/pull/126279 merges and my changes in ae769f930e2510e57ed8bd379b1b2d393b2312c3 get removed from this PR.
## Testing
> [!NOTE]
> `riscv64gc-unknown-linux-gnu` is a [**Tier 2 with Host Tools** platform](https://doc.rust-lang.org/beta/rustc/platform-support.html), all tests may not necessarily pass! There is work in https://github.com/rust-lang/rust/pull/125220 which helps fix several related tests.
You can test out the renamed job:
```sh
DEPLOY=1 ./src/ci/docker/run.sh riscv64gc-gnu
```
`DEPLOY=1` helps reproduce the CI's environment and also avoids the chance of a `llvm-c/BitReader.h` error (detailed in https://github.com/rust-lang/rust/issues/85424 and https://github.com/rust-lang/rust/issues/56650).
<details>
<summary>tests/run-make/inaccessible-temp-dir failure</summary>
```bash
---- [run-make] tests/run-make/inaccessible-temp-dir stdout ----
# ...
--- stdout -------------------------------
# Create an inaccessible directory
mkdir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/inaccessible-temp-dir/inaccessible-temp-dir/inaccessible
chmod 000 /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/inaccessible-temp-dir/inaccessible-temp-dir/inaccessible
# Run rustc with `-Ztemps-dir` set to a directory
# *inside* the inaccessible one, so that it can't create it
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/inaccessible-temp-dir/inaccessible-temp-dir:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/inaccessible-temp-dir/inaccessible-temp-dir -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/inaccessible-temp-dir/inaccessible-temp-dir -Ainternal_features -Clinker='riscv64-linux-gnu-gcc' program.rs -Ztemps-dir=/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/inaccessible-temp-dir/inaccessible-temp-dir/inaccessible/tmp 2>&1 \
| "/checkout/src/etc/cat-and-grep.sh" 'failed to find or create the directory specified by `--temps-dir`'
[[[ begin stdout ]]]
error: linking with `riscv64-linux-gnu-gcc` failed: exit status: 1
|
= note: LC_ALL="C" PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/bin:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/bin:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "riscv64-linux-gnu-gcc" "-m64" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/inaccessible-temp-dir/inaccessible-temp-dir/rustcHHUPmd/symbols.o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/inaccessible-temp-dir/inaccessible-temp-dir/inaccessible/tmp/program.program.45572bc5f2b14090-cgu.0.rcgu.o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/inaccessible-temp-dir/inaccessible-temp-dir/inaccessible/tmp/program.dv9uftjrq86w5xa7l2eo7g9l7.rcgu.o" "-Wl,--as-needed" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/inaccessible-temp-dir/inaccessible-temp-dir" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e6e3c30ae61f5a31.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-4f01f359c61a0a5e.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-02c7b58963139ffd.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-b66d5aea60ed3c58.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-5208f104036103e4.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-fdc5183e4f6dcbdd.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-eab0987d4aea0945.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-7ef07c8021adbf53.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-35ca031413717e66.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-9bf8f545a9224c8a.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-d6c6aeb7f3b89252.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-80de6049595b0062.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-49619208c34115e6.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-b4719719d9691028.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-279763368bc9fa45.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-86a2a7591afd1d37.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-d0bf37205fb9f76a.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-70719e8645e6f000.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-97c640fd5e54ed4c.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/inaccessible-temp-dir/inaccessible-temp-dir/program" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
= note: riscv64-linux-gnu-gcc: error: unrecognized command-line option '-m64'
error: aborting due to 1 previous error
[[[ end stdout ]]]
Error: cannot match: failed to find or create the directory specified by `--temps-dir`
------------------------------------------
--- stderr -------------------------------
make: *** [Makefile:26: all] Error 1
------------------------------------------
```
</details>
<details>
<summary>tests/run-make/issue-47551 failure</summary>
```bash
---- [run-make] tests/run-make/issue-47551 stdout ----
# ...
--- stdout -------------------------------
LD_LIBRARY_PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/issue-47551/issue-47551:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-bootstrap-tools/x86_64-unknown-linux-gnu/release/deps:/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/lib" '/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc' --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/issue-47551/issue-47551 -L /checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/issue-47551/issue-47551 -Ainternal_features -Clinker='riscv64-linux-gnu-gcc' eh_frame-terminator.rs
------------------------------------------
--- stderr -------------------------------
error: linking with `riscv64-linux-gnu-gcc` failed: exit status: 1
|
= note: LC_ALL="C" PATH="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/bin:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/bin:/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "riscv64-linux-gnu-gcc" "-m64" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/issue-47551/issue-47551/rustcL9WAHK/symbols.o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/issue-47551/issue-47551/eh_frame-terminator.eh_frame_terminator.de96000750278472-cgu.0.rcgu.o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/issue-47551/issue-47551/eh_frame-terminator.11u7alf4d09fd9gei30vk4yzn.rcgu.o" "-Wl,--as-needed" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/issue-47551/issue-47551" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e6e3c30ae61f5a31.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-4f01f359c61a0a5e.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-02c7b58963139ffd.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-b66d5aea60ed3c58.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-5208f104036103e4.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-fdc5183e4f6dcbdd.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-eab0987d4aea0945.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-7ef07c8021adbf53.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-35ca031413717e66.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-9bf8f545a9224c8a.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-d6c6aeb7f3b89252.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-80de6049595b0062.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-49619208c34115e6.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-b4719719d9691028.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-279763368bc9fa45.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-86a2a7591afd1d37.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-d0bf37205fb9f76a.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-70719e8645e6f000.rlib" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-97c640fd5e54ed4c.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/run-make/issue-47551/issue-47551/eh_frame-terminator" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
= note: riscv64-linux-gnu-gcc: error: unrecognized command-line option '-m64'
error: aborting due to 1 previous error
make: *** [Makefile:7: all] Error 1
------------------------------------------
failures:
[run-make] tests/run-make/inaccessible-temp-dir
[run-make] tests/run-make/issue-47551
test result: FAILED. 151 passed; 2 failed; 201 ignored; 0 measured; 0 filtered out; finished in 59.77s
Some tests failed in compiletest suite=run-make mode=run-make host=x86_64-unknown-linux-gnu target=riscv64gc-unknown-linux-gnu
Build completed unsuccessfully in 1:03:01
local time: Mon Jun 10 20:20:39 UTC 2024
network time: Mon, 10 Jun 2024 20:20:39 GMT
</details>
try-job: riscv64gc-gnu
Rollup of 3 pull requests
Successful merges:
- #126568 (mark undetermined if target binding in current ns is not got)
- #126577 (const_refs_to_static test and cleanup)
- #126584 (Do not ICE in privacy when type inference fails.)
r? `@ghost`
`@rustbot` modify labels: rollup
const_refs_to_static test and cleanup
r? ``@RalfJung``
test the existing behaviour of adt_const_params combined with const_refs_to_static.
also remove a dead error variant about consts referring to statics
Consistently use subtyping in method resolution
fixes#126062
An earlier version of this PR modified how we compute variance, but the root cause was an inconsistency between the usage of `eq` and `sub`, where we assumed that the latter passing implies the former will pass.
r? `@compiler-errors`
Convert a `span_bug` to a `span_delayed_bug`.
PR #121208 converted this from a `span_delayed_bug` to a `span_bug` because nothing in the test suite caused execution to hit this path. But now fuzzing has found a test case that does hit it. So this commit converts it back to `span_delayed_bug` and adds the relevant test.
Fixes#126385.
r? `@lcnr`
Make suggestion to change `Fn` to `FnMut` work with methods as well
Fixes#125325
The issue occurred because the code that emitted the suggestion to change `Fn` to `FnMut` worked only for function calls and not method calls. This PR makes it work with methods as well.
PR #121208 converted this from a `span_delayed_bug` to a `span_bug`
because nothing in the test suite caused execution to hit this path. But
now fuzzing has found a test case that does hit it. So this commit
converts it back to `span_delayed_bug` and adds the relevant test.
Fixes#126385.
Add codegen test for `Request::provide_*`
Codegen before & after https://github.com/rust-lang/rust/pull/126242: https://gist.github.com/slanterns/3789ee36f59ed834e1a6bd4677b68ed4.
Also adjust an outdated comment since `tag_id` is no longer attached to `TaggedOption` via `Erased`, but stored next to it in `Tagged` under the new implementation.
My first time writing FileCheck xD. Correct me if there is anything that should be amended.
r? libs
Resolve elided lifetimes in assoc const to static if no other lifetimes are in scope
Implements the change to elided lifetime resolution in *associated consts* subject to FCP here: https://github.com/rust-lang/rust/issues/125190#issue-2301532282
Specifically, walk the enclosing lifetime ribs in an associated const, and if we find no other lifetimes, then resolve to `'static`.
Also make it work for traits, but don't lint -- just give a hard error in that case.
Honor collapse_debuginfo for statics.
fixes#126363
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Spell out other trait diagnostic
I recently saw somebody confused about the diagnostic thinking it was suggesting to add an `as` cast. This change is longer but I think it's clearer
Remove superfluous UbChecks from `SliceIndex` methods
The current implementation calls the unsafe ones from the safe ones, but that means they end up emitting UbChecks that are impossible to hit, since we just checked those things.
This PR adds some new module-local helpers for the code shared between them, so the safe methods can be small enough to inline by avoiding those extra checks, while the unsafe methods still help catch length mistakes.
r? `@saethlin`
tests/ui/lint: Move 19 tests to new `non-snake-case` subdir
Mainly so that it is easier to only run all `non_snake_case`-lint-specific tests with:
./x test tests/ui/lint/non-snake-case
But also to reduce the size of the large `tests/ui/lint` directory. And rename some tests to pass tidy, and remove them from `src/tools/tidy/src/issues.txt`.
smir: merge identical Constant and ConstOperand types
The first commit renames the const operand visitor functions on regular MIR to match the type name, that was forgotten in the original rename.
The second commit changes stable MIR, fixing https://github.com/rust-lang/project-stable-mir/issues/71. Previously there were two different smir types for the MIR type `ConstOperand`, one used in `Operand` and one in `VarDebugInfoContents`.
Maybe we should have done this with https://github.com/rust-lang/rust/pull/125967, so there's only a single breaking change... but I saw that PR too late.
Fixes https://github.com/rust-lang/project-stable-mir/issues/71
Check that alias-relate terms are WF if reporting an error in alias-relate
Check that each of the left/right term is WF when deriving a best error obligation for an alias-relate goal. This will make sure that given `<i32 as NotImplemented>::Assoc = ()` will drill down into `i32: NotImplemented` since we currently treat the projection as rigid.
r? lcnr
