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MIR Optimization panic #93190

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@Arisa-Snowbell

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@Arisa-Snowbell

when compiling mongodb-rust-driver with the latest nightly as of now (17d29dc 2022-01-21) it throws out some MIR optimization panic, i am using mongodb-rust-driver right from a repo, the commit is 577345c2b0084691882893a03a3672fdcd410e46

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rustc --version --verbose:

rustc 1.60.0-nightly (17d29dcdc 2022-01-21)
binary: rustc
commit-hash: 17d29dcdce9b9e838635eb0adefd9b8b1588410b
commit-date: 2022-01-21
host: x86_64-unknown-linux-gnu
release: 1.60.0-nightly
LLVM version: 13.0.0

Error output

error: internal compiler error: compiler/rustc_mir_transform/src/generator.rs:755:13: Broken MIR: generator contains type ClientOptionsParser in MIR, but typeck only
knows about {ResumeTy, impl AsRef<str>, std::option::Option<resolver_config::ResolverConfig>, bool, client::options::ClientOptions, [closure@/home/arisa/.cargo/git/ch
eckouts/mongo-rust-driver-b939e0128fabb835/577345c/src/client/options/mod.rs:1100:69: 1100:90], impl futures_core::Future<Output = std::result::Result<SrvResolver, er
ror::Error>>, (), SrvResolver, &Vec<client::options::ServerAddress>, Vec<client::options::ServerAddress>, usize, &client::options::ServerAddress, client::options::Ser
verAddress, &str, impl futures_core::Future<Output = std::result::Result<ResolvedConfig, error::Error>>} and [impl AsRef<str>, std::option::Option<client::options::re
solver_config::ResolverConfig>]
    --> /home/arisa/.cargo/git/checkouts/mongo-rust-driver-b939e0128fabb835/577345c/src/client/options/mod.rs:1092:23
     |
1092 |       ) -> Result<Self> {
     |  _______________________^
1093 | |         let parser = ClientOptionsParser::parse(uri.as_ref())?;
1094 | |         let srv = parser.srv;
1095 | |         let auth_source_present = parser.auth_source.is_some();
...    |
1145 | |         Ok(options)
1146 | |     }
     | |_____^

thread 'rustc' panicked at 'Box<dyn Any>', /rustc/17d29dcdce9b9e838635eb0adefd9b8b1588410b/compiler/rustc_errors/src/lib.rs:1115:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

note: the compiler unexpectedly panicked. this is a bug.

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 1.60.0-nightly (17d29dcdc 2022-01-21) running on x86_64-unknown-linux-gnu

note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type lib

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [optimized_mir] optimizing MIR for `client::options::<impl at /home/arisa/.cargo/git/checkouts/mongo-rust-driver-b939e0128fabb835/577345c/src/client/options/mod.rs
:973:1: 1261:2>::parse_uri::{closure#0}`
#1 [layout_of] computing layout of `[static generator@/home/arisa/.cargo/git/checkouts/mongo-rust-driver-b939e0128fabb835/577345c/src/client/options/mod.rs:1092:23: 1
146:6]`
end of query stack
error: could not compile `mongodb`
warning: build failed, waiting for other jobs to finish...
error: build failed
Backtrace

   Compiling mongodb v2.0.0 (https://github.com/mongodb/mongo-rust-driver.git#577345c2)
error: internal compiler error: compiler/rustc_mir_transform/src/generator.rs:755:13: Broken MIR: generator contains type ClientOptionsParser in MIR, but typeck only knows about {ResumeTy, impl AsRef<str>, std::option::Option<resolver_config::ResolverConfig>, bool, client::options::ClientOptions, [closure@/home/arisa/.cargo/git/checkouts/mongo-rust-driver-b939e0128fabb835/577345c/src/client/options/mod.rs:1100:69: 1100:90], impl futures_core::Future<Output = std::result::Result<SrvResolver, error::Error>>, (), SrvResolver, &Vec<client::options::ServerAddress>, Vec<client::options::ServerAddress>, usize, &client::options::ServerAddress, client::options::ServerAddress, &str, impl futures_core::Future<Output = std::result::Result<ResolvedConfig, error::Error>>} and [impl AsRef<str>, std::option::Option<client::options::resolver_config::ResolverConfig>]
    --> /home/arisa/.cargo/git/checkouts/mongo-rust-driver-b939e0128fabb835/577345c/src/client/options/mod.rs:1092:23
     |
1092 |       ) -> Result<Self> {
     |  _______________________^
1093 | |         let parser = ClientOptionsParser::parse(uri.as_ref())?;
1094 | |         let srv = parser.srv;
1095 | |         let auth_source_present = parser.auth_source.is_some();
...    |
1145 | |         Ok(options)
1146 | |     }
     | |_____^

thread 'rustc' panicked at 'Box<dyn Any>', /rustc/17d29dcdce9b9e838635eb0adefd9b8b1588410b/compiler/rustc_errors/src/lib.rs:1115:9
stack backtrace:
   0: std::panicking::begin_panic::<rustc_errors::ExplicitBug>
   1: std::panic::panic_any::<rustc_errors::ExplicitBug>
   2: <rustc_errors::HandlerInner>::span_bug::<rustc_span::span_encoding::Span>
   3: <rustc_errors::Handler>::span_bug::<rustc_span::span_encoding::Span>
   4: rustc_middle::ty::context::tls::with_opt::<rustc_middle::util::bug::opt_span_bug_fmt<rustc_span::span_encoding::Span>::{closure#0}, ()>
   5: rustc_middle::util::bug::opt_span_bug_fmt::<rustc_span::span_encoding::Span>
   6: rustc_middle::util::bug::span_bug_fmt::<rustc_span::span_encoding::Span>
   7: <rustc_mir_transform::generator::StateTransform as rustc_middle::mir::MirPass>::run_pass
   8: rustc_mir_transform::pass_manager::run_passes
   9: rustc_mir_transform::optimized_mir
  10: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, &rustc_middle::mir::Body>>
  11: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::optimized_mir
  12: <rustc_middle::ty::context::TyCtxt>::generator_layout
  13: <rustc_middle::ty::layout::LayoutCx<rustc_middle::ty::context::TyCtxt>>::layout_of_uncached
  14: rustc_middle::ty::layout::layout_of
  15: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::layout_of, rustc_query_impl::plumbing::QueryCtxt>
  16: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::layout_of
  17: core::iter::adapters::process_results::<core::iter::adapters::map::Map<core::slice::iter::Iter<rustc_middle::ty::FieldDef>, <rustc_middle::ty::layout::LayoutCx<rustc_middle::ty::context::TyCtxt>>::layout_of_uncached::{closure#5}::{closure#0}>, rustc_target::abi::TyAndLayout<&rustc_middle::ty::TyS>, rustc_middle::ty::layout::LayoutError, <core::result::Result<alloc::vec::Vec<rustc_target::abi::TyAndLayout<&rustc_middle::ty::TyS>>, rustc_middle::ty::layout::LayoutError> as core::iter::traits::collect::FromIterator<core::result::Result<rustc_target::abi::TyAndLayout<&rustc_middle::ty::TyS>, rustc_middle::ty::layout::LayoutError>>>::from_iter<core::iter::adapters::map::Map<core::slice::iter::Iter<rustc_middle::ty::FieldDef>, <rustc_middle::ty::layout::LayoutCx<rustc_middle::ty::context::TyCtxt>>::layout_of_uncached::{closure#5}::{closure#0}>>::{closure#0}, alloc::vec::Vec<rustc_target::abi::TyAndLayout<&rustc_middle::ty::TyS>>>
  18: core::iter::adapters::process_results::<core::iter::adapters::map::Map<core::slice::iter::Iter<rustc_middle::ty::VariantDef>, <rustc_middle::ty::layout::LayoutCx<rustc_middle::ty::context::TyCtxt>>::layout_of_uncached::{closure#5}>, alloc::vec::Vec<rustc_target::abi::TyAndLayout<&rustc_middle::ty::TyS>>, rustc_middle::ty::layout::LayoutError, <core::result::Result<rustc_index::vec::IndexVec<rustc_target::abi::VariantIdx, alloc::vec::Vec<rustc_target::abi::TyAndLayout<&rustc_middle::ty::TyS>>>, rustc_middle::ty::layout::LayoutError> as core::iter::traits::collect::FromIterator<core::result::Result<alloc::vec::Vec<rustc_target::abi::TyAndLayout<&rustc_middle::ty::TyS>>, rustc_middle::ty::layout::LayoutError>>>::from_iter<core::iter::adapters::map::Map<core::slice::iter::Iter<rustc_middle::ty::VariantDef>, <rustc_middle::ty::layout::LayoutCx<rustc_middle::ty::context::TyCtxt>>::layout_of_uncached::{closure#5}>>::{closure#0}, rustc_index::vec::IndexVec<rustc_target::abi::VariantIdx, alloc::vec::Vec<rustc_target::abi::TyAndLayout<&rustc_middle::ty::TyS>>>>
  19: <rustc_middle::ty::layout::LayoutCx<rustc_middle::ty::context::TyCtxt>>::layout_of_uncached
  20: rustc_middle::ty::layout::layout_of
  21: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::layout_of, rustc_query_impl::plumbing::QueryCtxt>
  22: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::layout_of
  23: rustc_middle::ty::layout::layout_of
  24: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::layout_of, rustc_query_impl::plumbing::QueryCtxt>
  25: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::layout_of
  26: <rustc_mir_transform::const_prop::ConstProp as rustc_middle::mir::MirPass>::run_pass
  27: rustc_mir_transform::pass_manager::run_passes
  28: rustc_mir_transform::optimized_mir
  29: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::DefId, &rustc_middle::mir::Body>>
  30: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::optimized_mir
  31: <rustc_metadata::rmeta::encoder::EncodeContext>::encode_crate_root
  32: rustc_metadata::rmeta::encoder::encode_metadata_impl
  33: rustc_data_structures::sync::join::<rustc_metadata::rmeta::encoder::encode_metadata::{closure#0}, rustc_metadata::rmeta::encoder::encode_metadata::{closure#1}, rustc_metadata::rmeta::encoder::EncodedMetadata, ()>
  34: rustc_metadata::rmeta::encoder::encode_metadata
  35: <rustc_interface::passes::QueryContext>::enter::<<rustc_interface::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core::result::Result<alloc::boxed::Box<dyn core::any::Any>, rustc_errors::ErrorReported>>
  36: <rustc_interface::queries::Queries>::ongoing_codegen
  37: <rustc_interface::interface::Compiler>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_errors::ErrorReported>>
  38: rustc_span::with_source_map::<core::result::Result<(), rustc_errors::ErrorReported>, rustc_interface::interface::create_compiler_and_run<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>::{closure#1}>
  39: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::util::setup_callbacks_and_run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorReported>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_errors::ErrorReported>>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

note: the compiler unexpectedly panicked. this is a bug.

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 1.60.0-nightly (17d29dcdc 2022-01-21) running on x86_64-unknown-linux-gnu

note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type lib

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [optimized_mir] optimizing MIR for `client::options::<impl at /home/arisa/.cargo/git/checkouts/mongo-rust-driver-b939e0128fabb835/577345c/src/client/options/mod.rs:973:1: 1261:2>::parse_uri::{closure#0}`
#1 [layout_of] computing layout of `[static generator@/home/arisa/.cargo/git/checkouts/mongo-rust-driver-b939e0128fabb835/577345c/src/client/options/mod.rs:1092:23: 1146:6]`
#2 [layout_of] computing layout of `core::future::from_generator::GenFuture<[static generator@/home/arisa/.cargo/git/checkouts/mongo-rust-driver-b939e0128fabb835/577345c/src/client/options/mod.rs:1092:23: 1146:6]>`
#3 [layout_of] computing layout of `impl core::future::future::Future<Output = [async output]>`
#4 [optimized_mir] optimizing MIR for `client::options::<impl at /home/arisa/.cargo/git/checkouts/mongo-rust-driver-b939e0128fabb835/577345c/src/client/options/mod.rs:973:1: 1261:2>::parse_uri`
end of query stack
error: could not compile `mongodb`

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    C-bugCategory: This is a bug.I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.

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