ICE: `no resolution for an import` #121760

matthiaskrgr · 2024-02-28T20:54:54Z

auto-reduced (treereduce-rust):

mod framing {
    mod public_message_in {
        mod public_message {

            pub struct ConfirmedTranscriptHashInput;
        }

        mod public_message_in {

            #[derive(Debug)]
            pub struct ConfirmedTranscriptHashInput;
        }

        pub use self::public_message::*;
        pub use self::public_message_in::*;
    }

    pub use self::public_message_in::*;
}

use crate::framing::ConfirmedTranscriptHashInput::public_message_in;

fn main() {}

original code

original:

// https://github.com/rust-lang/rust/pull/113099
//~^ WARNING `ConfirmedTranscriptHashInput` is ambiguous

mod framing {
    mod public_message_in {
    mod public_message {
        use super::*;

        #[derive(Debug)]
        pub struct ConfirmedTranscriptHashInput;
    }

    mod public_message_in {
        use super::*;

        #[derive(Debug)]
        pub struct ConfirmedTranscriptHashInput;
    }

    pub use self::public_message::*;
    pub use self::public_message_in::*;
}

    mod framing {
    mod public_message {
        use super::*;

        #[derive(Debug)]
        pub struct ConfirmedTranscriptHashInput;
    }

    mod public_message_in {
        use super::*;

        #[derive(Debug)]
        pub struct ConfirmedTranscriptHashInput;
    }

    pub use self::public_message::*;
    pub use self::public_message_in::*;
}

    pub use self::public_message_in::*;
    pub use super::*;
}

use crate::framing::ConfirmedTranscriptHashInput::public_message_in;
//~^ WARNING `ConfirmedTranscriptHashInput` is ambiguous
// https://github.com/rust-lang/rust/pull/113099

fn main() { }

Version information

rustc 1.78.0-nightly (d377991ba 2024-02-28)
binary: rustc
commit-hash: d377991bad40c0d5c79bfa58465295751e8542fe
commit-date: 2024-02-28
host: x86_64-unknown-linux-gnu
release: 1.78.0-nightly
LLVM version: 18.1.0

Command:
/home/matthias/.rustup/toolchains/master/bin/rustc

Program output

warning: `ConfirmedTranscriptHashInput` is ambiguous
  --> /tmp/icemaker_global_tempdir.A9iMdoxm4bt7/rustc_testrunner_tmpdir_reporting.IXnzClC1fpP8/mvce.rs:21:21
   |
21 | use crate::framing::ConfirmedTranscriptHashInput::public_message_in;
   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ambiguous name
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
   = note: ambiguous because of multiple glob imports of a name in the same module
note: `ConfirmedTranscriptHashInput` could refer to the struct imported here
  --> /tmp/icemaker_global_tempdir.A9iMdoxm4bt7/rustc_testrunner_tmpdir_reporting.IXnzClC1fpP8/mvce.rs:14:17
   |
14 |         pub use self::public_message::*;
   |                 ^^^^^^^^^^^^^^^^^^^^^^^
   = help: consider adding an explicit import of `ConfirmedTranscriptHashInput` to disambiguate
note: `ConfirmedTranscriptHashInput` could also refer to the struct imported here
  --> /tmp/icemaker_global_tempdir.A9iMdoxm4bt7/rustc_testrunner_tmpdir_reporting.IXnzClC1fpP8/mvce.rs:15:17
   |
15 |         pub use self::public_message_in::*;
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
   = help: consider adding an explicit import of `ConfirmedTranscriptHashInput` to disambiguate
   = note: `#[warn(ambiguous_glob_imports)]` on by default

warning: unused import: `self::public_message_in::*`
  --> /tmp/icemaker_global_tempdir.A9iMdoxm4bt7/rustc_testrunner_tmpdir_reporting.IXnzClC1fpP8/mvce.rs:15:17
   |
15 |         pub use self::public_message_in::*;
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(unused_imports)]` on by default

warning: struct `ConfirmedTranscriptHashInput` is never constructed
 --> /tmp/icemaker_global_tempdir.A9iMdoxm4bt7/rustc_testrunner_tmpdir_reporting.IXnzClC1fpP8/mvce.rs:5:24
  |
5 |             pub struct ConfirmedTranscriptHashInput;
  |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(dead_code)]` on by default

warning: struct `ConfirmedTranscriptHashInput` is never constructed
  --> /tmp/icemaker_global_tempdir.A9iMdoxm4bt7/rustc_testrunner_tmpdir_reporting.IXnzClC1fpP8/mvce.rs:11:24
   |
11 |             pub struct ConfirmedTranscriptHashInput;
   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `ConfirmedTranscriptHashInput` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis

warning: 4 warnings emitted

note: no errors encountered even though delayed bugs were created

note: those delayed bugs will now be shown as internal compiler errors

error: internal compiler error: no resolution for an import
  --> /tmp/icemaker_global_tempdir.A9iMdoxm4bt7/rustc_testrunner_tmpdir_reporting.IXnzClC1fpP8/mvce.rs:21:5
   |
21 | use crate::framing::ConfirmedTranscriptHashInput::public_message_in;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
note: delayed at compiler/rustc_ast_lowering/src/lib.rs:743:24
         0: <rustc_errors::DiagCtxtInner>::emit_diagnostic
         1: <rustc_errors::DiagCtxt>::emit_diagnostic
         2: <rustc_span::ErrorGuaranteed as rustc_errors::diagnostic::EmissionGuarantee>::emit_producing_guarantee
         3: <rustc_ast_lowering::LoweringContext>::lower_import_res
         4: <rustc_ast_lowering::LoweringContext>::lower_use_tree
         5: <rustc_ast_lowering::LoweringContext>::lower_item_kind
         6: <rustc_ast_lowering::item::ItemLowerer>::lower_node
         7: rustc_ast_lowering::lower_to_hir
         8: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::hir_crate::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
         9: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
        10: rustc_query_impl::query_impl::hir_crate::get_query_non_incr::__rust_end_short_backtrace
        11: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::hir_attrs::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
        12: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::VecCache<rustc_hir::hir_id::OwnerId, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
        13: rustc_query_impl::query_impl::hir_attrs::get_query_non_incr::__rust_end_short_backtrace
        14: <rustc_middle::hir::map::Map>::attrs
        15: rustc_passes::entry::entry_fn
        16: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::entry_fn::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 12]>>
        17: <rustc_query_impl::query_impl::entry_fn::dynamic_query::{closure#2} as core::ops::function::FnOnce<(rustc_middle::ty::context::TyCtxt, ())>>::call_once
        18: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 12]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
        19: rustc_query_impl::query_impl::entry_fn::get_query_non_incr::__rust_end_short_backtrace
        20: rustc_interface::passes::analysis
        21: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 1]>>
        22: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 1]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false>
        23: rustc_query_impl::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
        24: rustc_interface::interface::run_compiler::<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}
        25: std::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>
        26: <<std::thread::Builder>::spawn_unchecked_<rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_span::ErrorGuaranteed>>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
        27: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
                   at /rustc/d377991bad40c0d5c79bfa58465295751e8542fe/library/alloc/src/boxed.rs:2016:9
        28: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
                   at /rustc/d377991bad40c0d5c79bfa58465295751e8542fe/library/alloc/src/boxed.rs:2016:9
        29: std::sys::pal::unix::thread::Thread::new::thread_start
                   at /rustc/d377991bad40c0d5c79bfa58465295751e8542fe/library/std/src/sys/pal/unix/thread.rs:108:17
        30: <unknown>
        31: <unknown>
  --> /tmp/icemaker_global_tempdir.A9iMdoxm4bt7/rustc_testrunner_tmpdir_reporting.IXnzClC1fpP8/mvce.rs:21:5
   |
21 | use crate::framing::ConfirmedTranscriptHashInput::public_message_in;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: rustc 1.78.0-nightly (d377991ba 2024-02-28) running on x86_64-unknown-linux-gnu

query stack during panic:
end of query stack

The text was updated successfully, but these errors were encountered:

matthiaskrgr · 2024-02-28T21:00:34Z

regression in #120609 cc @petrochenkov

matthiaskrgr · 2024-02-28T21:52:47Z

mod A {
    mod B {
        mod C {
            pub struct D;
        }

        mod B {
            #[derive(Debug)]
            pub struct D;
        }

        pub use self::B::*;
        pub use self::C::*;
    }

    pub use self::B::*;
}

use crate::A::D::B;

fn main() {}

bvanjoi · 2024-03-01T07:06:17Z

I believe the root cause of this issue stems from the changes I made, so @rustbot claim

only compare ambiguity item that have hard error Fixes rust-lang#121760 An easy fix, r? `@petrochenkov`

Rollup merge of rust-lang#121846 - bvanjoi:fix-121760, r=petrochenkov only compare ambiguity item that have hard error Fixes rust-lang#121760 An easy fix, r? ``@petrochenkov``

matthiaskrgr added I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. C-bug Category: This is a bug. labels Feb 28, 2024

rustbot added the needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. label Feb 28, 2024

matthiaskrgr changed the title ~~ICE: `no resolution for an import~~ ICE: no resolution for an import Feb 28, 2024

jieyouxu added A-resolve Area: Name resolution S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue and removed needs-triage This issue may need triage. Remove it if it has been sufficiently triaged. labels Feb 28, 2024

rustbot assigned bvanjoi Mar 1, 2024

bvanjoi mentioned this issue Mar 1, 2024

only compare ambiguity item that have hard error #121846

Merged

matthiaskrgr added a commit to matthiaskrgr/rust that referenced this issue Mar 5, 2024

Rollup merge of rust-lang#121846 - bvanjoi:fix-121760, r=petrochenkov

27a74bd

only compare ambiguity item that have hard error Fixes rust-lang#121760 An easy fix, r? `@petrochenkov`

bors closed this as completed in 152b690 Mar 6, 2024

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ICE: `no resolution for an import` #121760

ICE: `no resolution for an import` #121760

matthiaskrgr commented Feb 28, 2024 •

edited by rustbot

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matthiaskrgr commented Feb 28, 2024

matthiaskrgr commented Feb 28, 2024

bvanjoi commented Mar 1, 2024

ICE: no resolution for an import #121760

ICE: no resolution for an import #121760

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matthiaskrgr commented Feb 28, 2024 • edited by rustbot Loading

matthiaskrgr commented Feb 28, 2024

matthiaskrgr commented Feb 28, 2024

bvanjoi commented Mar 1, 2024

ICE: `no resolution for an import` #121760

ICE: `no resolution for an import` #121760

matthiaskrgr commented Feb 28, 2024 •

edited by rustbot

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