Rollup of 18 pull requests #56773
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Rollup of 18 pull requests #56773
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`mir_stats` mod has not been used since c1ff104.
Popping and pushing from the end of a linked list is constant time. This documentation is already there for popping and pushing from the front. @bors: r+ 38fe8d2 rollup
Also, provide a suggestion for the correct syntax.
Includes some new stabilized intrinsics for the wasm32 target! Closes rust-lang#56292
Initially, rust-lang#50233 accidentally changed the capacity of empty ZST. This was pointed out during code review. This commit adds a test to prevent capacity of ZST vectors from accidentally changing to prevent that from happening again.
…previously not in test suite.
Add lint for items deprecated in future Resolves rust-lang#55892
…omatsakis Remove not used mod `mir_stats` mod has not been used since c1ff104.
Clearer error message for dead assign I'm not that this is the right place for this (if it needs an RFC or not). I had the problem where I misunderstood the compiler lint message rust-lang#56436 and other people seem to have had the same problem https://www.reddit.com/r/rust/comments/8cy9p4/value_assigned_to_is_never_read/. I think this new wording might be slightly clearer (and help out beginners like me). I'm very new though, so there might be some nuance I'm missing that would make this more confusing or a bad idea for other reasons. I thought I would create a PR to make it easy to change the code if the consensus was that it would make sense to make a change. If this is the wrong place for this sort of thing I'll happily delete/move it.
…MatthewJasper polonius tweaks - bump polonius to 0.6.0 - fix 2-phase-borrow activations r? @matthewjasper
Document time of back operations of a Linked List Popping and pushing from the end of a linked list is constant time. This documentation is already there for popping and pushing from the front. @bors: r+ 38fe8d2 rollup
#[must_use] on traits in stdlib Based on rust-lang#55506. Adds `#[must_use]` attribute to traits in the stdlib: - `Iterator` - `Future` - `FnOnce` - `Fn` - `FnMut` There may be other traits that should have the attribute, but I couldn't find/think of any.
overhaul external doc attribute diagnostics This PR improves the error handling and spans for the external doc attribute. Many cases that silently failed before now emit errors, spans are tightened, and the errors have help and suggestions. I tried to address all the cases that users ran into in the tracking issue. cc rust-lang#44732 r? @QuietMisdreavus
…matsakis Update the stdsimd submodule Includes some new stabilized intrinsics for the wasm32 target! Closes rust-lang#56292
…k, r=jonas-schievink fix install broken link solves rust-lang#56690
…alexcrichton Always set the RDRAND and RDSEED features on SGX Not sure if this is 100% correct. This [Intel article](https://software.intel.com/en-us/articles/intel-software-guard-extensions-tutorial-part-5-enclave-development) goes in great depth regarding using (untrusted) CPUID to see whether RDRAND/RDSEED is supported, and explains what happens to the enclave if the CPUID result is faked. I'd say that an implementation of SGX that doesn't make RDRAND available to the enclave is so severely limited/broken that it's ok if you get #UD in that case. The case is less clear for RDSEED, but it so far every processor released by Intel with SGX support also has RDSEED (including Gemini Lake). cc @briansmith
Test capacity of ZST vector Initially, rust-lang#50233 accidentally changed the capacity of empty ZST. This was pointed out during code review. This commit adds a test to prevent capacity of ZST vectors from accidentally changing to prevent that from happening again.
… r=alexcrichton Use libbacktrace pretty-printing r? @alexcrichton
fix rust-lang/rust issue rust-lang#50583 Rationale for the fix is in rust-lang#50583. I've verified that before the fix /musl-armhf/lib/libc.a is riddled with the illegal variant of vmov.f64 and after the fix the version built doesn't contain any of these illegal instructions. I originally thought that the arm-linux-gnueabi version also needed fixing - to add a -mfloat-abi-soft but that's unnecessary as it's compiled with the gnueabi (not hf) compiler (I've some a quick check that the libc.a produced doesn't include VFP instructions). r? @alexcrichton
Add missing urls in ffi module docs r? @QuietMisdreavus
…s-message, r=zackmdavis Fix private_no_mangle_fns message grammar Simply changes "an warning" to "a warning" in the `private_no_mangle_fns` warning. I started getting this in some code after upgrading to 1.31.0.
…osure-using-region-from-containing-fn, r=nikomatsakis Add test of current behavior (infer free region within closure body) This behavior was previously not encoded in our test suite. it is pretty important that we test this behavior. In particular, in rust-lang#56537 I had proposed expanding the lifetime elision rules so that they would apply to some of the cases encoded in this test, which would cause them to start failing to compile successfully (because the lifetime attached to the return type would start being treated as connected to the lifetime on the input parameter to the lambda expression, which is explicitly *not* what the code wants in this particular case). In other words, I am trying to ensure that anyone who tries such experiments with lifetime elision in the future quickly finds out why we don't support lifetime elision on lambda expressions (at least not in the naive manner described on rust-lang#56537).
…ckmdavis target: remove Box returned by get_targets
…ertj Account for `impl Trait` when suggesting lifetime Fix rust-lang#56745
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Successful merges:
impl Traitwhen suggesting lifetime #56755 (Account forimpl Traitwhen suggesting lifetime)Failed merges:
r? @ghost