ICE: `no resolution for an import`

[matthiaskrgr]

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

[matthiaskrgr]

regression in #120609 cc @petrochenkov

[matthiaskrgr]

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]

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