Fixes rust-lang#130210. Since rust-lang#124881, `ReentrantLock` uses `ThreadId` to identify threads. This has the unfortunate consequence of breaking uses of `Stdout` before main: Locking the `ReentrantLock` that synchronizes the output will initialize the thread ID before the handle for the main thread is set in `rt::init`. But since that would overwrite the current thread ID, `thread::set_current` triggers an abort. This PR fixes the problem by using the already initialized thread ID for constructing the main thread handle and allowing `set_current` calls that do not change the thread's ID.

std: fix stdout-before-main#131233bors merged 1 commit intorust-lang:masterrust-lang/rust:masterfrom joboet:stdout-before-mainjoboet/rust:stdout-before-mainCopy head branch name to clipboard

Commits

Commits on Oct 12, 2024

std: fix stdout-before-main

std: fix stdout-before-main#131233
bors merged 1 commit intorust-lang:masterfrom
joboet:stdout-before-main