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nightly panicked at 'assertion failed: directive.imported_module.get().is_none()' #56182
Description
thread 'main' panicked at 'assertion failed: directive.imported_module.get().is_none()', src\librustc_resolve\resolve_imports.rs:867:17
stack backtrace:
0: std::sys_common::alloc::realloc_fallback
1: std::panicking::take_hook
2: std::panicking::take_hook
3: rustc::ty::structural_impls::<impl rustc::ty::context::Lift<'tcx> for rust
c::ty::instance::InstanceDef<'a>>::lift_to_tcx
4: std::panicking::rust_panic_with_hook
5: <rustc_resolve::build_reduced_graph::BuildReducedGraphVisitor<'a, 'b, 'cl>
as syntax::visit::Visitor<'a>>::visit_ty
6: rustc_resolve::resolve_imports::ImportResolver::finalize_imports
7: rustc_resolve::Resolver::resolve_crate
8: rustc_driver::driver::build_output_filenames
9: rustc_driver::driver::count_nodes
10: rustc_driver::driver::compile_input
11: rustc_driver::run_compiler
12: rustc_driver::driver::build_output_filenames
13: rustc_driver::run_compiler
14: <humantime::duration::Error as std::error::Error>::cause
15: _rust_maybe_catch_panic
16: rustc_driver::profile::dump
17: rustc_driver::main
18: <unknown>
19: std::panicking::update_panic_count
20: _rust_maybe_catch_panic
21: std::rt::lang_start_internal
22: <unknown>
23: <unknown>
24: BaseThreadInitThunk
25: RtlUserThreadStart
query stack during panic:
end of query stack
error: internal compiler error: unexpected panic
note: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
note: rustc 1.32.0-nightly (00e03ee57 2018-11-22) running on x86_64-pc-windows-msvc
note: compiler flags: -C debuginfo=2 -C incremental --crate-type bin
note: some of the compiler flags provided by cargo are hidden
It used to build with an older nightly.
Any idea how I can get it to build again?
Activity
petrochenkov commentedon Nov 23, 2018
Hmm, this should be different from #56125 according to the line number.
@Boscop
Could you give some minimized reproduction?
Before adding this assert I tried to construct a case where it would be hit, but couldn't.
Boscop commentedon Nov 23, 2018
@petrochenkov
In my rust-toolchain file I have
nightly-2018-11-23. When I change it tonightly-2018-11-20it also panics but not with e.g.nightly-2018-10-31, there it doesn't panic but shows this error:Btw, this project is also doing
use actix::prelude::*;in 2 places, and using edition 2018. So maybe it is related to the other issue?petrochenkov commentedon Nov 23, 2018
@Boscop
I know where exactly this assert is in rustc, when it was introduced and how it's related to the other issues, but I cannot fix this without a code snippet reproducing the ICE.
Boscop commentedon Nov 23, 2018
@petrochenkov After I changed the import to
use ::actix::prelude::*;it builds fine withnightly-2018-11-23, too. So I think the issue is the same as #56125 and the minimal example crate would also be the same: https://github.com/tmpolaczyk/actix_icepetrochenkov commentedon Nov 23, 2018
If this is https://github.com/tmpolaczyk/actix_ice, then it should be already fixed in #56147.
I'll check again.
petrochenkov commentedon Nov 23, 2018
https://github.com/tmpolaczyk/actix_ice is indeed fixed and the fix has reached nightly, so this is a separate issue (as I suspected from the line number in the ICE), in this case reproduction is still needed.
petrochenkov commentedon Nov 25, 2018
I still cannot reproduce this and from code I don't understand how that assert (
rust/src/librustc_resolve/resolve_imports.rs
Line 867 in edaac35
Denominating from Rust 2018 Release, but keeping it open for now in case @Boscop comes up with a working reproduction.
petrochenkov commentedon Nov 25, 2018
Reproduced and fixed in #56206
Auto merge of #56206 - petrochenkov:betaregr, r=alexcrichton
alexcrichton commentedon Nov 25, 2018
Fixed in #56206