Hang after encountering overflow errors for huge types

Code

fn main() {
    let mut x = None;
    let y = x;
    let z = Default::default();
    let mut w = (&mut x, z, z);
    let a = (&mut None::<fn(&())>, y, None::<fn(&'static ())>);
    w = z;
}

Affected release channels

• Previous Stable
• Current Stable
• Current Beta
• Current Nightly

Rust Version

rustc 1.84.0-nightly (bc5cf994d 2024-11-05)
binary: rustc
commit-hash: bc5cf994db9fb46712cefd89f78ad7fc51f184a2
commit-date: 2024-11-05
host: x86_64-unknown-linux-gnu
release: 1.84.0-nightly
LLVM version: 19.1.3

Current error output

No response

Backtrace

Anything else?

Start by reproducing the reported hang with the provided minimized Rust program on the listed nightly toolchain. Trace the compiler's handling of overflow errors for the huge inferred types, then add a regression test showing that compilation terminates and reports an appropriate error.