ICE: DefId does not have a "def_span"
#110206
Comments
matthiaskrgr
added
I-ICE
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This is caused by #109765. The fix is to either
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I can't reproduce this either locally or in playground. https://play.rust-lang.org/?version=nightly&mode=debug&edition=2021&gist=a9fda7c34a1fc58aa9f611970de9feed |
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Weird, I can still repro locally with |
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mcve from a different file: use std::simd::Mask;
fn main() {
Mask::<Mask>::std();
} |
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This is also weird for me to reproduce: I must be doing something wrong, both my
😅 |
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Yeah, something is very weird. I didn't manage to properly |
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Same for me, |
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I forgot to mention: this does also reproduce on master and reverting #109765 seems to fix the ICE indeed, as vadim suggested above. |
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I'm going to remove has-mcve since we're not sure why it sometimes doesn't ICE. |
jyn514
removed
the
S-has-mcve
I think this is the better solution. Otherwise, we'll have more and more special cases in diagnostic code which is already very complex. |
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Couple more reproducers: mod BikeshedIntrinsicFrom {
use std::mem::BikeshedIntrinsicFrom;
pub fn is_transmutable<Src, Dst>()
where
Dst: BikeshedIntrinsicFrom<Src, Context, false, false, false, true>
{}
}mod assert {
use std::mem::BikeshedIntrinsicuse std::{fmt, ops, str::FromStr};
impl fmt::Display for Edition {
fn fmt(&self, f: &mut fmt::Formatter(_crate_id, data)) -> fmt::Result {}
}
From;
pub fn is_transmutable<Src, Dst, Context>()
where
Dst: BikeshedIntrinsicFrom<Src, Context, true, true, true, true>
{}
}#![no_std]
use core::ffi::VaList;
pub fn ffi<'a>(_: usize, mut ap1: ...) -> VaList<'a> {
ap
}use std::{fmt, ops, str::FromStr};
impl fmt::Display for Edition {
fn fmt(&self, f: &mut fmt::Formatter(_crate_id, data)) -> fmt::Result {}
} |
…ram, r=petrochenkov Encode def span for `ConstParam` Fixes rust-lang#110206 r? `@petrochenkov`
Fixes build failures. Toolchain is updated, but we can't upgrade to latest nightly because it fails with an ICE, possibly rust-lang/rust#110206 thread 'rustc' panicked at 'DefId(35:311 ~ embedded_io[99f8]::asynch::Write::write::{opaque#0}) does not have a "def_span"', compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs:205:1
Code
Not sure how this passes the test suite 🙃
Original code from
./tests/ui/transmutability/issue-101739-2.rsreduced
Meta
rustc --version --verbose:Error output
Backtrace
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