Make `BorrowedFd::borrow_raw` a const fn.
Making `BorrowedFd::borrow_raw` a const fn allows it to be used to
create a constant `BorrowedFd<'static>` holding constants such as
`AT_FDCWD`. This will allow [`rustix::fs::cwd`] to become a const fn.
For consistency, make similar changes to `BorrowedHandle::borrow_raw`
and `BorrowedSocket::borrow_raw`.
[`rustix::fs::cwd`]: https://docs.rs/rustix/latest/rustix/fs/fn.cwd.html
r? `@joshtriplett`
Revert "Make "Assemble stage1 compiler" orders of magnitude faster"
Reverts rust-lang/rust#96803. This caused `llvm-tools-nightly` to fail when installing with `rustup-toolchain-install-master` because of the presence of symlinks. I'm not sure how the symlinks got in there, but revert the PR for now while I figure it out.
r? `@Mark-Simulacrum` cc `@RalfJung`
CC #27709 (tracking issue for the `ip` feature which contains more
functions)
The function `Ipv6Addr::to_ipv4` is bad because it also returns an IPv4
address for the IPv6 loopback address `::1`. Stabilize
`Ipv6Addr::to_ipv4_mapped` so we can recommend that function instead.
Issue #84096 changed the hashmap RNG to use BCryptGenRandom instead of
RtlGenRandom on Windows.
Mozilla Firefox started experiencing random failures in
env_logger::Builder::new() (Issue #94098) during initialization of their
unsandboxed main process with an "Access Denied" error message from
BCryptGenRandom(), which is used by the HashMap contained in
env_logger::Builder
The root cause appears to be a virus scanner or other software interfering
with BCrypt DLLs loading.
This change adds a fallback option if BCryptGenRandom is unusable for
whatever reason. It will fallback to RtlGenRandom in this case.
Fixes#94098
Expose process windows_process_extensions_main_thread_handle on Windows
~~I did not find any tests in 7d3e03666a/library/std/src/sys/windows/process/tests.rs that actually launch processes, so I haven't added tests for this.~~ I ran the following locally, to check that it works as expected:
```rs
#![feature(windows_process_extensions_main_thread_handle)]
fn main() {
use std::os::windows::process::{ChildExt, CommandExt};
const CREATE_SUSPENDED: u32 = 0x00000004;
let proc = std::process::Command::new("cmd")
.args(["/C", "echo hello"])
.creation_flags(CREATE_SUSPENDED)
.spawn()
.unwrap();
extern "system" {
fn ResumeThread(_: *mut std::ffi::c_void) -> u32;
}
unsafe {
ResumeThread(proc.main_thread_handle());
}
let output = proc.wait_with_output().unwrap();
let str_output = std::str::from_utf8(&output.stdout[..]).unwrap();
println!("{}", str_output);
}
```
Without the feature attribute it wouldn't compile, and commenting the `ResumeThread` line makes it hang forever, showing that it works.
Trakcing issue https://github.com/rust-lang/rust/issues/96723
Handle mismatched generic param kinds in trait impls betterly
- Check that generic params on a generic associated type are the same as in the trait definition
- Check that const generics are not used in place of type generics (and the other way round too)
r? `@lcnr`
libtest already supports a "--skip SUBSTRING" arg which excludes any
test names matching SUBSTRING.
This adds a "--skip" argument to compiletest and bootstrap which is
forwarded to libtest.
Check hidden types for well formedness at the definition site instead of only at the opaque type itself
work towards #90409 . We'll need to look into closure and generator bodies of closures and generators nested inside the hidden type in order to fix that. In hindsight this PR is not necessary for that, but it may be a bit easier with it and we'll get better diagnostics from it on its own.
New lint: [`derive_partial_eq_without_eq`]
Introduces a new lint, [`derive_partial_eq_without_eq`].
See: #1781 (doesn't close it though).
changelog: add lint [`derive_partial_eq_without_eq`]
