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Rollup of 8 pull requests #120448

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Successful merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

joshlf and others added 25 commits October 12, 2023 15:35
Currently, when building with `build-std`, some library build scripts
check properties of the target by inspecting the target triple at
`env::TARGET`, which is simply set to the filename of the JSON file
when using JSON target files.

This patch alters these build scripts to use `env::CARGO_CFG_*` to
fetch target information instead, allowing JSON target files
describing platforms without `restricted_std` to build correctly when
using `-Z build-std`.

Fixes wg-cargo-std-aware/rust-lang#60.
This refactors run.sh to never override an explicit $CODEGEN_BACKENDS if
set in the build.
This includes a change to the upstream build_fuchsia_from_rust_ci script
that builds a minimal set of tests, to improve coverage on this builder.
This reverts commit 31ecf34.

Co-authored-by: Ryan Levick <[email protected]>
…trochenkov

Suppress unhelpful diagnostics for unresolved top level attributes

Fixes rust-lang#118455, unresolved top level attribute error didn't imported prelude and already have emitted an error, report builtin macro and attributes error by the way, so `check_invalid_crate_level_attr` in can ignore them.

Also fixes rust-lang#89566, fixes rust-lang#67107.

r? ```@petrochenkov```
Reject infinitely-sized reads from io::Repeat

These calls would always run out of memory.

Related to rust-lang#117925
Add support for custom JSON targets when using build-std.

Currently, when building with `build-std`, some library build scripts check properties of the target by inspecting the target triple at `env::TARGET`, which is simply set to the filename of the JSON file when using JSON target files.

This patch alters these build scripts to use `env::CARGO_CFG_*` to fetch target information instead, allowing JSON target files describing platforms without `restricted_std` to build correctly when using `-Z build-std`. There are some weak assertions here (for example, `nintendo && newlib`), however this seems at least a marginal improvement on the existing solution.

Fixes rust-lang/wg-cargo-std-aware#60.
…ark-Simulacrum

Bump Fuchsia, build tests, and use 8 core bots

- Build Fuchsia on 8 cores instead of 16
- Skip building cranelift for Fuchsia
- Bump Fuchsia (includes building tests)

This includes a change to the upstream build_fuchsia_from_rust_ci script that builds a minimal set of tests, to improve coverage on this builder. This would have caught rust-lang/rust-clippy#11952 and rust-lang#119593.

See prior discussion on rust-lang#119400 about building on 8 cores instead of 16. This PR combines changes from that and rust-lang#119399, plus clean up.

r? `````@Mark-Simulacrum`````
raw pointer metadata API: data address -> data pointer

A pointer consists of [more than just an address](rust-lang/rfcs#3559), so let's not equate "pointer" and "address" in these docs.
Revert outdated version of "Add the wasm32-wasi-preview2 target"

An outdated version of rust-lang#119616 was merged in rollup rust-lang#120309.
This reverts those changes to enable rust-lang#119616 to “retain the intended diff” after a rebase.
`@rylev` has agreed that this would be the cleanest approach with respect to the history.
Unblocks rust-lang#119616.

r? `@petrochenkov` or compiler or libs
…ement, r=fmease

Fixes footnote handling in rustdoc

Fixes rust-lang#100638.

You can now declare footnotes like this:

```rust
//! Reference to footnotes A[^1], B[^2] and C[^3].
//!
//! [^1]: Footnote A.
//! [^2]: Footnote B.
//! [^3]: Footnote C.
```

r? `@notriddle`
@rustbot rustbot added A-testsuite Area: The testsuite used to check the correctness of rustc O-wasi Operating system: Wasi, Webassembly System Interface S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Jan 28, 2024
@rustbot rustbot added T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. rollup A PR which is a rollup labels Jan 28, 2024
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@bors r+ rollup=never p=8

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bors commented Jan 28, 2024

📌 Commit 1ff326d has been approved by matthiaskrgr

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jan 28, 2024
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bors commented Jan 28, 2024

⌛ Testing commit 1ff326d with merge 4c57de4...

bors added a commit to rust-lang-ci/rust that referenced this pull request Jan 28, 2024
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#116677 (References refer to allocated objects)
 - rust-lang#118533 (Suppress unhelpful diagnostics for unresolved top level attributes)
 - rust-lang#119991 (Reject infinitely-sized reads from io::Repeat)
 - rust-lang#120232 (Add support for custom JSON targets when using build-std.)
 - rust-lang#120358 (Bump Fuchsia, build tests, and use 8 core bots)
 - rust-lang#120424 (raw pointer metadata API: data address -> data pointer)
 - rust-lang#120434 (Revert outdated version of "Add the wasm32-wasi-preview2 target")
 - rust-lang#120443 (Fixes footnote handling in rustdoc)

r? `@ghost`
`@rustbot` modify labels: rollup
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The job dist-android failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)
[RUSTC-TIMING] object test:false 4.379
error: `futex_condvar::Condvar::new` is not yet stable as a const fn
   --> library/std/src/sync/condvar.rs:127:26
    |
127 |         Condvar { inner: sys::Condvar::new() }
    |
    = help: const-stable functions can only call other const-stable functions

error: `futex_mutex::Mutex::new` is not yet stable as a const fn
error: `futex_mutex::Mutex::new` is not yet stable as a const fn
   --> library/std/src/sync/mutex.rs:230:24
    |
230 |         Mutex { inner: sys::Mutex::new(), poison: poison::Flag::new(), data: UnsafeCell::new(t) }
    |
    = help: const-stable functions can only call other const-stable functions

error: `sys_common::once::futex::Once::new` is not yet stable as a const fn
error: `sys_common::once::futex::Once::new` is not yet stable as a const fn
  --> library/std/src/sync/once.rs:76:23
   |
76 |         Once { inner: sys::Once::new() }
   |                       ^^^^^^^^^^^^^^^^
   |
   = help: const-stable functions can only call other const-stable functions

error: `futex_rwlock::RwLock::new` is not yet stable as a const fn
    |
    |
161 |         RwLock { inner: sys::RwLock::new(), poison: poison::Flag::new(), data: UnsafeCell::new(t) }
    |
    = help: const-stable functions can only call other const-stable functions

[RUSTC-TIMING] std test:false 2.642

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bors commented Jan 28, 2024

💔 Test failed - checks-actions

@bors bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Jan 28, 2024
@matthiaskrgr matthiaskrgr deleted the rollup-j30dzmw branch March 16, 2024 18:19
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A-testsuite Area: The testsuite used to check the correctness of rustc O-wasi Operating system: Wasi, Webassembly System Interface rollup A PR which is a rollup S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
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