Cbindgen fails on latest nightly (1.68.0-nightly) with an internal compiler error

[rholshausen]

cbindgen internally runs cargo rustc -Zunpretty=expanded which is failing with an internal compiler error. You can see a failed build with the error at https://github.com/pact-foundation/pact-reference/actions/runs/3720065127/jobs/6320910722

Code

You can reproduce the error by running:

• clone https://github.com/pact-foundation/pact-reference
• cd rust/pact_ffi
• rustup run nightly cbindgen --config cbindgen.toml --crate pact_ffi

Meta

Note, cbindgen requires to run with nightly rust.

rustc --version --verbose:

❯ rustup run nightly rustc --version --verbose
rustc 1.68.0-nightly (0468a00ae 2022-12-17)
binary: rustc
commit-hash: 0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc
commit-date: 2022-12-17
host: x86_64-unknown-linux-gnu
release: 1.68.0-nightly
LLVM version: 15.0.6

Error output

This has been extracted from the failing CI build:

error: internal compiler error: /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/compiler/rustc_mir_dataflow/src/elaborate_drops.rs:898:18: open drop from non-ADT `impl futures::Future<Output = ()>`
   --> pact_mock_server/src/mock_server.rs:157:66
    |
157 |       .map_err(|err| format!(\"Could not start server: {}\", err))?;
    |                                                                  ^

thread 'rustc' panicked at 'Box<dyn Any>', /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/compiler/rustc_errors/src/lib.rs:973:33
stack backtrace:
   0:     0x7ffaf101d85a - std::backtrace_rs::backtrace::libunwind::trace::h51cb40f2f8f23f31
                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7ffaf101d85a - std::backtrace_rs::backtrace::trace_unsynchronized::hebc3338ffed58a56
                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7ffaf101d85a - std::sys_common::backtrace::_print_fmt::h136f982a4680ac7f
                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7ffaf101d85a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hd1514baae6e42eb6\n                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7ffaf108036e - core::fmt::write::hfbed4b54a5eebfee
                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/core/src/fmt/mod.rs:1208:17
   5:     0x7ffaf100dbd5 - std::io::Write::write_fmt::h9f6098b6a54a9a94
                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/std/src/io/mod.rs:1682:15
   6:     0x7ffaf101d625 - std::sys_common::backtrace::_print::h6e7a2bc7da6ecf73
                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7ffaf101d625 - std::sys_common::backtrace::print::h631b25ef82a0eea1
                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7ffaf102036f - std::panicking::default_hook::{{closure}}::h41299fc951b157c9
                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/std/src/panicking.rs:267:22
   9:     0x7ffaf10200ab - std::panicking::default_hook::hd317023abfdceaed
                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/std/src/panicking.rs:286:9
  10:     0x7ffaefe34cc1 - rustc_driver[8fc339cf4408bec4]::DEFAULT_HOOK::{closure#0}::{closure#0}
  11:     0x7ffaf1020bad - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h813f31c5cc72640d
                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/alloc/src/boxed.rs:2032:9
  12:     0x7ffaf1020bad - std::panicking::rust_panic_with_hook::h2e61684db9120e8e
                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/std/src/panicking.rs:692:13
  13:     0x7ffaf04c0e81 - std[14b7645e29e8dad4]::panicking::begin_panic::<rustc_errors[5442e185e098f882]::ExplicitBug>::{closure#0}
  14:     0x7ffaf04c06d6 - std[14b7645e29e8dad4]::sys_common::backtrace::__rust_end_short_backtrace::<std[14b7645e29e8dad4]::panicking::begin_panic<rustc_errors[5442e185e098f882]::ExplicitBug>::{closure#0}, !>
  15:     0x7ffaf04e9036 - std[14b7645e29e8dad4]::panicking::begin_panic::<rustc_errors[5442e185e098f882]::ExplicitBug>
  16:     0x7ffaf04da196 - std[14b7645e29e8dad4]::panic::panic_any::<rustc_errors[5442e185e098f882]::ExplicitBug>
  17:     0x7ffaf04d92c2 - <rustc_errors[5442e185e098f882]::HandlerInner>::span_bug::<rustc_span[fd000e025c1fef5b]::span_encoding::Span, &alloc[1a97d1c4ba9fe4a2]::string::String>
  18:     0x7ffaf04d6487 - <rustc_errors[5442e185e098f882]::Handler>::span_bug::<rustc_span[fd000e025c1fef5b]::span_encoding::Span, &alloc[1a97d1c4ba9fe4a2]::string::String>
  19:     0x7ffaf0479129 - rustc_middle[1a40b9d11a76de60]::ty::context::tls::with_context_opt::<rustc_middle[1a40b9d11a76de60]::ty::context::tls::with_opt<rustc_middle[1a40b9d11a76de60]::util::bug::opt_span_bug_fmt<rustc_span[fd000e025c1fef5b]::span_encoding::Span>::{closure#0}, ()>::{closure#0}, ()>
  20:     0x7ffaf0478236 - rustc_middle[1a40b9d11a76de60]::util::bug::opt_span_bug_fmt::<rustc_span[fd000e025c1fef5b]::span_encoding::Span>
  21:     0x7ffaeef84064 - rustc_middle[1a40b9d11a76de60]::util::bug::span_bug_fmt::<rustc_span[fd000e025c1fef5b]::span_encoding::Span>
  22:     0x7ffaedf454a1 - <rustc_mir_dataflow[48ba6c1fd6c1a861]::elaborate_drops::DropCtxt<rustc_mir_transform[466f52074d601c49]::elaborate_drops::Elaborator>>::elaborate_drop
  23:     0x7ffaedf4ae2d - <alloc[1a97d1c4ba9fe4a2]::vec::Vec<rustc_middle[1a40b9d11a76de60]::mir::BasicBlock> as alloc[1a97d1c4ba9fe4a2]::vec::spec_from_iter::SpecFromIter<rustc_middle[1a40b9d11a76de60]::mir::BasicBlock, core[486592e7c49a8aa]::iter::adapters::chain::Chain<core[486592e7c49a8aa]::iter::sources::once::Once<rustc_middle[1a40b9d11a76de60]::mir::BasicBlock>, core[486592e7c49a8aa]::iter::adapters::map::Map<core[486592e7c49a8aa]::iter::adapters::zip::Zip<core[486592e7c49a8aa]::iter::adapters::rev::Rev<core[486592e7c49a8aa]::slice::iter::Iter<(rustc_middle[1a40b9d11a76de60]::mir::syntax::Place, core[486592e7c49a8aa]::option::Option<rustc_mir_dataflow[48ba6c1fd6c1a861]::move_paths::MovePathIndex>)>>, core[486592e7c49a8aa]::slice::iter::Iter<rustc_mir_dataflow[48ba6c1fd6c1a861]::elaborate_drops::Unwind>>, <rustc_mir_dataflow[48ba6c1fd6c1a861]::elaborate_drops::DropCtxt<rustc_mir_transform[466f52074d601c49]::elaborate_drops::Elaborator>>::drop_halfladder::{closure#0}>>>>::from_iter
  24:     0x7ffaedf4a0a5 - <rustc_mir_dataflow[48ba6c1fd6c1a861]::elaborate_drops::DropCtxt<rustc_mir_transform[466f52074d601c49]::elaborate_drops::Elaborator>>::drop_ladder
  25:     0x7ffaedf49e17 - <rustc_mir_dataflow[48ba6c1fd6c1a861]::elaborate_drops::DropCtxt<rustc_mir_transform[466f52074d601c49]::elaborate_drops::Elaborator>>::open_drop_for_tuple
  26:     0x7ffaedf43b54 - <rustc_mir_dataflow[48ba6c1fd6c1a861]::elaborate_drops::DropCtxt<rustc_mir_transform[466f52074d601c49]::elaborate_drops::Elaborator>>::elaborate_drop
  27:     0x7ffaeeeea955 - <rustc_mir_transform[466f52074d601c49]::elaborate_drops::ElaborateDrops as rustc_middle[1a40b9d11a76de60]::mir::MirPass>::run_pass
  28:     0x7ffaee87d348 - rustc_mir_transform[466f52074d601c49]::run_analysis_to_runtime_passes
  29:     0x7ffaee87c0e0 - rustc_mir_transform[466f52074d601c49]::mir_drops_elaborated_and_const_checked
  30:     0x7ffaee7d389b - <rustc_query_system[259206d12eac588b]::dep_graph::graph::DepGraph<rustc_middle[1a40b9d11a76de60]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[1a40b9d11a76de60]::ty::context::TyCtxt, rustc_middle[1a40b9d11a76de60]::ty::WithOptConstParam<rustc_span[fd000e025c1fef5b]::def_id::LocalDefId>, &rustc_data_structures[9df8088a57e7e2f7]::steal::Steal<rustc_middle[1a40b9d11a76de60]::mir::Body>>
  31:     0x7ffaee7d21f1 - rustc_query_system[259206d12eac588b]::query::plumbing::try_execute_query::<rustc_query_impl[bc8faa08c5c89942]::plumbing::QueryCtxt, rustc_query_system[259206d12eac588b]::query::caches::DefaultCache<rustc_middle[1a40b9d11a76de60]::ty::WithOptConstParam<rustc_span[fd000e025c1fef5b]::def_id::LocalDefId>, &rustc_data_structures[9df8088a57e7e2f7]::steal::Steal<rustc_middle[1a40b9d11a76de60]::mir::Body>>>
  32:     0x7ffaee78c1e1 - rustc_mir_transform[466f52074d601c49]::optimized_mir
  33:     0x7ffaee78b90f - <rustc_query_system[259206d12eac588b]::dep_graph::graph::DepGraph<rustc_middle[1a40b9d11a76de60]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[1a40b9d11a76de60]::ty::context::TyCtxt, rustc_span[fd000e025c1fef5b]::def_id::DefId, &rustc_middle[1a40b9d11a76de60]::mir::Body>
  34:     0x7ffaee786a51 - rustc_query_system[259206d12eac588b]::query::plumbing::try_execute_query::<rustc_query_impl[bc8faa08c5c89942]::plumbing::QueryCtxt, rustc_query_system[259206d12eac588b]::query::caches::DefaultCache<rustc_span[fd000e025c1fef5b]::def_id::DefId, &rustc_middle[1a40b9d11a76de60]::mir::Body>>
  35:     0x7ffaef149933 - <rustc_metadata[ff8e2c172980b3b4]::rmeta::encoder::EncodeContext>::encode_crate_root
  36:     0x7ffaef0df435 - rustc_metadata[ff8e2c172980b3b4]::rmeta::encoder::encode_metadata_impl
  37:     0x7ffaef0d8b3e - rustc_data_structures[9df8088a57e7e2f7]::sync::join::<rustc_metadata[ff8e2c172980b3b4]::rmeta::encoder::encode_metadata::{closure#0}, rustc_metadata[ff8e2c172980b3b4]::rmeta::encoder::encode_metadata::{closure#1}, (), ()>
  38:     0x7ffaef0d8841 - rustc_metadata[ff8e2c172980b3b4]::rmeta::encoder::encode_metadata
  39:     0x7ffaef0d7aa6 - rustc_metadata[ff8e2c172980b3b4]::fs::encode_and_write_metadata
  40:     0x7ffaef0c71ae - rustc_interface[58e4822cc60d2a6c]::passes::start_codegen
  41:     0x7ffaef0c4f06 - <rustc_interface[58e4822cc60d2a6c]::passes::QueryContext>::enter::<<rustc_interface[58e4822cc60d2a6c]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[486592e7c49a8aa]::result::Result<alloc[1a97d1c4ba9fe4a2]::boxed::Box<dyn core[486592e7c49a8aa]::any::Any>, rustc_errors[5442e185e098f882]::ErrorGuaranteed>>
  42:     0x7ffaef0c23b6 - <rustc_interface[58e4822cc60d2a6c]::queries::Queries>::ongoing_codegen
  43:     0x7ffaef0c18d7 - <rustc_interface[58e4822cc60d2a6c]::interface::Compiler>::enter::<rustc_driver[8fc339cf4408bec4]::run_compiler::{closure#1}::{closure#2}, core[486592e7c49a8aa]::result::Result<core[486592e7c49a8aa]::option::Option<rustc_interface[58e4822cc60d2a6c]::queries::Linker>, rustc_errors[5442e185e098f882]::ErrorGuaranteed>>
  44:     0x7ffaef0bc8b8 - rustc_span[fd000e025c1fef5b]::with_source_map::<core[486592e7c49a8aa]::result::Result<(), rustc_errors[5442e185e098f882]::ErrorGuaranteed>, rustc_interface[58e4822cc60d2a6c]::interface::run_compiler<core[486592e7c49a8aa]::result::Result<(), rustc_errors[5442e185e098f882]::ErrorGuaranteed>, rustc_driver[8fc339cf4408bec4]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
  45:     0x7ffaef0bc3a5 - <scoped_tls[2f862aa259e87453]::ScopedKey<rustc_span[fd000e025c1fef5b]::SessionGlobals>>::set::<rustc_interface[58e4822cc60d2a6c]::interface::run_compiler<core[486592e7c49a8aa]::result::Result<(), rustc_errors[5442e185e098f882]::ErrorGuaranteed>, rustc_driver[8fc339cf4408bec4]::run_compiler::{closure#1}>::{closure#0}, core[486592e7c49a8aa]::result::Result<(), rustc_errors[5442e185e098f882]::ErrorGuaranteed>>
  46:     0x7ffaef0bb992 - std[14b7645e29e8dad4]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[58e4822cc60d2a6c]::util::run_in_thread_pool_with_globals<rustc_interface[58e4822cc60d2a6c]::interface::run_compiler<core[486592e7c49a8aa]::result::Result<(), rustc_errors[5442e185e098f882]::ErrorGuaranteed>, rustc_driver[8fc339cf4408bec4]::run_compiler::{closure#1}>::{closure#0}, core[486592e7c49a8aa]::result::Result<(), rustc_errors[5442e185e098f882]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[486592e7c49a8aa]::result::Result<(), rustc_errors[5442e185e098f882]::ErrorGuaranteed>>
  47:     0x7ffaef6f2c1a - <<std[14b7645e29e8dad4]::thread::Builder>::spawn_unchecked_<rustc_interface[58e4822cc60d2a6c]::util::run_in_thread_pool_with_globals<rustc_interface[58e4822cc60d2a6c]::interface::run_compiler<core[486592e7c49a8aa]::result::Result<(), rustc_errors[5442e185e098f882]::ErrorGuaranteed>, rustc_driver[8fc339cf4408bec4]::run_compiler::{closure#1}>::{closure#0}, core[486592e7c49a8aa]::result::Result<(), rustc_errors[5442e185e098f882]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[486592e7c49a8aa]::result::Result<(), rustc_errors[5442e185e098f882]::ErrorGuaranteed>>::{closure#1} as core[486592e7c49a8aa]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  48:     0x7ffaf102a983 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hdbff13d45d6b3b01\n                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/alloc/src/boxed.rs:2000:9
  49:     0x7ffaf102a983 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1e5384a2b7a0037a\n                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/alloc/src/boxed.rs:2000:9
  50:     0x7ffaf102a983 - std::sys::unix::thread::Thread::new::thread_start::h4b8540c4f94d9763
                               at /rustc/0468a00ae3fd6ef1a6a0f9eaf637d7aa9e604acc/library/std/src/sys/unix/thread.rs:108:17
  51:     0x7ffaec890402 - start_thread
                               at ./nptl/./nptl/pthread_create.c:442:8
  52:     0x7ffaec91f590 - __GI___clone3
                               at ./misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
  53:                0x0 - <unknown>

note: rustc 1.68.0-nightly (0468a00ae 2022-12-17) running on x86_64-unknown-linux-gnu

note: compiler flags: --crate-type lib -C embed-bitcode=no -C debuginfo=2 -C incremental=[REDACTED]

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

query stack during panic:
#0 [mir_drops_elaborated_and_const_checked] elaborating drops for `mock_server::<impl at pact_mock_server/src/mock_server.rs:120:1: 120:16>::new::{closure#0}`
#1 [optimized_mir] optimizing MIR for `mock_server::<impl at pact_mock_server/src/mock_server.rs:120:1: 120:16>::new::{closure#0}`
end of query stack
error: could not compile `pact_mock_server`

Caused by:
  process didn't exit successfully: `rustc --crate-name pact_mock_server --edition=2021 pact_mock_server/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=e9cf0c3c0a580219 -C extra-filename=-e9cf0c3c0a580219 --out-dir /home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps -C incremental=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/incremental -L dependency=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps --extern anyhow=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libanyhow-3187dfc7d03798d3.rmeta --extern bytes=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libbytes-dc2a23bb18d2d90f.rmeta --extern futures=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libfutures-0db157998510b3f7.rmeta --extern hyper=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libhyper-d3084614b8d67500.rmeta --extern hyper_rustls=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libhyper_rustls-68a4535c338fa03a.rmeta --extern itertools=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libitertools-834616629779ca0a.rmeta --extern lazy_static=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/liblazy_static-3ab14ef94a1f89cf.rmeta --extern maplit=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libmaplit-89b324ce4249d94e.rmeta --extern pact_plugin_driver=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libpact_plugin_driver-3ae5689b4a54a8af.rmeta --extern pact_matching=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libpact_matching-f39e842a307eb025.rmeta --extern pact_models=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libpact_models-9b10206b5fe1cc9b.rmeta --extern rustls=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/librustls-4aee97a09c0575d1.rmeta --extern rustls_pemfile=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/librustls_pemfile-716f037f98382131.rmeta --extern serde=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libserde-3b4dedb1aa546273.rmeta --extern serde_json=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libserde_json-26c54950645ad8fa.rmeta --extern thiserror=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libthiserror-374cd6b514c9b1ad.rmeta --extern tokio=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libtokio-ce74bf31b396f1c4.rmeta --extern tokio_rustls=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libtokio_rustls-d802fdd24c4682c7.rmeta --extern tracing=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libtracing-1a8ab389ec0d1ce5.rmeta --extern tracing_core=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libtracing_core-1028932204319d6b.rmeta --extern url=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/liburl-6889d76684c16d97.rmeta --extern uuid=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/deps/libuuid-1b60a4b4398a542a.rmeta -L native=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/build/ring-7e30325d849067bf/out -L native=/home/ronald/Development/Projects/Pact/pact-reference/rust/target/debug/build/onig_sys-028951401dcde764/out` (exit status: 101)

[albertlarsan68]

searched nightlies: from nightly-2022-12-15 to nightly-2022-12-19
regressed nightly: nightly-2022-12-17
searched commit range: ec56537...9c07efe
regressed commit: 03770f0 (#103880, cc @b-naber and @lcnr)

bisected with cargo-bisect-rustc v0.6.5

Host triple: x86_64-pc-windows-msvc
Reproduce with:

cargo bisect-rustc --preserve --access github --script bisect.bat

at pact-foundation/pact-reference@09479b9
and bisect.bat eventually running cbindgen --config cbindgen.toml --crate pact_ffi with the correct toolchain

[lqd]

This should be fixed in tomorrow's nightly now that #105905 has been merged. However, it would be great to have a minimal example that we could add as a non-regression test.

[trinity-1686a]

I worked on an MCVE. It's maybe not minimal yet, but it's standalone. It only works when building as a library (lib.rs), not from a binary (main.rs)

use std::future::{pending, Future};

async fn handle_request() -> Result<(), String> {
    loop {}
}

struct Server<S> {
    _make_service: S,
}

impl Server<()> {
    pub fn bind<S>(_make_service: S) -> Server<S> {
        loop {}
    }
}
impl<T> Server<T> {
    fn with_graceful_shutdown<>(self) -> impl Future<Output = ()>
    {
        pending()
    }
}

pub(crate) async fn create_and_bind(
    _: impl Future<Output = ()>,
) -> (impl Future<Output = ()>,) {
    let server = Server::bind(handle_request().await);

    (async { server.with_graceful_shutdown().await; },)
}

pub async fn new() -> Result<(), String> {
    let (_future,) = create_and_bind(async { pending().await }).await;

    Ok(())
}

cc @b-naber

[b-naber]

Thanks a lot.

[apiraino]

should be closed by #105905