[bug] When I Use tauri-plugin-http and reqwest either, I got a panic

[Wan9xy]

Code

just follow next steps

• create a new project

D:\src>cargo create-tauri-app
✔ Project name · http3-test
✔ Identifier · com.http3-test.app
✔ Choose which language to use for your frontend · TypeScript / JavaScript - (pnpm, yarn, npm, deno, bun)
✔ Choose your package manager · yarn
✔ Choose your UI template · React - (https://react.dev/)
✔ Choose your UI flavor · TypeScript

Template created! To get started run:
  cd http3-test
  yarn
  yarn tauri android init

For Desktop development, run:
  yarn tauri dev

For Android development, run:
  yarn tauri android dev

• add http-plugin

PS D:\src\http3-test> cargo tauri add http
    Info Installing Cargo dependency "tauri-plugin-http"...
    Updating crates.io index
      Adding tauri-plugin-http v2 to dependencies                                                                                                                                                                                                                                                             
             Features as of v2.0.0:
             + charset
             + cookies
             + http2
             + macos-system-configuration
             + rustls-tls
             - blocking
             - brotli
             - deflate
             - gzip
             - json
             - multipart
             - native-tls
             - native-tls-alpn
             - native-tls-vendored
             - rustls-tls-manual-roots
             - rustls-tls-native-roots
             - rustls-tls-webpki-roots
             - socks
             - stream
             - trust-dns
             - unsafe-headers
    Updating crates.io index
     Locking 14 packages to latest compatible versions                                                                                                                                                                                                                                                        
      Adding atomic-waker v1.1.2
      Adding cookie_store v0.21.1
      Adding core-foundation v0.9.4
      Adding data-url v0.3.1
      Adding document-features v0.2.11
      Adding h2 v0.4.8
      Adding litrs v0.4.1
      Adding psl-types v2.0.11
      Adding publicsuffix v2.3.0
      Adding system-configuration v0.6.1
      Adding system-configuration-sys v0.6.0
      Adding tauri-plugin-fs v2.2.0
      Adding tauri-plugin-http v2.3.0
      Adding tokio-macros v2.5.0
    Info Installing NPM dependency "@tauri-apps/plugin-http@>=2"...
npm WARN tar TAR_ENTRY_ERROR UNKNOWN: unknown error, open 'D:\src\http3-test\node_modules\csstype\LICENSE'
npm WARN tar TAR_ENTRY_ERROR UNKNOWN: unknown error, open 'D:\src\http3-test\node_modules\react\LICENSE'
npm WARN tar TAR_ENTRY_ERROR UNKNOWN: unknown error, open 'D:\src\http3-test\node_modules\csstype\index.js.flow'
npm WARN tar TAR_ENTRY_ERROR UNKNOWN: unknown error, open 'D:\src\http3-test\node_modules\react\index.js'
npm WARN tar TAR_ENTRY_ERROR EPERM: operation not permitted, unlink 'D:\src\http3-test\node_modules\rollup\dist\shared\index.js.DELETE.b9028c845ffc584fbb068805a7d58e0a'
npm WARN tar TAR_ENTRY_ERROR EPERM: operation not permitted, unlink 'D:\src\http3-test\node_modules\react-dom\cjs\react-dom-server.browser.development.js.DELETE.76960b8d49de689888a42ede9c85b4e1'
npm WARN tar TAR_ENTRY_ERROR EPERM: operation not permitted, unlink 'D:\src\http3-test\node_modules\react-dom\umd\react-dom-server.browser.development.js.DELETE.1d650941dcfc97f45f5af66203d98360'
npm WARN tar TAR_ENTRY_ERROR EPERM: operation not permitted, unlink 'D:\src\http3-test\node_modules\@types\react\index.d.ts.DELETE.6c7871ba6cbe85ffe9516d2f2b26e620'
    Added permission `http:default` to `default` at D:\src\http3-test\src-tauri\capabilities\default.json
    Info Adding plugin to D:\src\http3-test\src-tauri\src/lib.rs
    Info Running `cargo fmt`...

• add reqwest

PS D:\src\http3-test> cd .\src-tauri\
PS D:\src\http3-test\src-tauri> cargo add reqwest --features http3
    Updating crates.io index
      Adding reqwest v0.12.12 to dependencies                                                                                                                                                                                                                                                                 
             Features:
             + __rustls
             + __rustls-ring
             + __tls
             + charset
             + default-tls
             + h2
             + http2
             + http3
             + macos-system-configuration
             + rustls-tls-manual-roots
             + rustls-tls-manual-roots-no-provider
             22 deactivated features
     Locking 21 packages to latest compatible versions
      Adding errno v0.3.10
      Adding fastrand v2.3.0
      Adding foreign-types v0.3.2
      Adding foreign-types-shared v0.1.1
      Adding futures v0.3.31
      Adding h3 v0.0.6
      Adding h3-quinn v0.0.7
      Adding hyper-tls v0.6.0
      Adding linux-raw-sys v0.4.15
      Adding native-tls v0.2.14
      Adding openssl v0.10.71
      Adding openssl-macros v0.1.1
      Adding openssl-probe v0.1.6
      Adding openssl-sys v0.9.106
      Adding rustix v0.38.44
      Adding schannel v0.1.27
      Adding security-framework v2.11.1
      Adding security-framework-sys v2.14.0
      Adding tempfile v3.17.1
      Adding tokio-native-tls v0.3.1
      Adding vcpkg v0.2.15

• last setting env and run you can get panic like this

error: 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 1.84.1 (e71f9a9a9 2025-01-27) running on x86_64-pc-windows-msvc
note: compiler flags: --crate-type lib -C embed-bitcode=no -C debuginfo=2
note: some of the compiler flags provided by cargo are hidden
query stack during panic:
#0 [optimized_mir] optimizing MIR for `commands::fetch::{closure#0}`
#1 [layout_of] computing layout of `{async fn body of commands::fetch<R>()}`
#2 [mir_drops_elaborated_and_const_checked] elaborating drops for `commands::fetch`
#3 [analysis] running analysis passes on this crate
end of query stack

• at last my cargo.toml is

[package]
name = "http3-test"
version = "0.1.0"
description = "A Tauri App"
authors = ["you"]
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[lib]
# The `_lib` suffix may seem redundant but it is necessary
# to make the lib name unique and wouldn't conflict with the bin name.
# This seems to be only an issue on Windows, see https://github.com/rust-lang/cargo/issues/8519
name = "http3_test_lib"
crate-type = ["staticlib", "cdylib", "rlib"]

[build-dependencies]
tauri-build = { version = "2", features = [] }

[dependencies]
tauri = { version = "2", features = [] }
tauri-plugin-shell = "2"
serde = { version = "1", features = ["derive"] }
serde_json = "1"
tauri-plugin-http = "2"
reqwest = { version = "0.12.12", features = ["http3"] }

Meta

rustc --version --verbose:

OS: Windows 11 x64
rustc: rustc 1.84.1 (e71f9a9a9 2025-01-27)

Error output

error: 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 1.84.1 (e71f9a9a9 2025-01-27) running on x86_64-pc-windows-msvc
note: compiler flags: --crate-type lib -C embed-bitcode=no -C debuginfo=2
note: some of the compiler flags provided by cargo are hidden
query stack during panic:
#0 [optimized_mir] optimizing MIR for `commands::fetch::{closure#0}`
#1 [layout_of] computing layout of `{async fn body of commands::fetch<R>()}`
#2 [mir_drops_elaborated_and_const_checked] elaborating drops for `commands::fetch`
#3 [analysis] running analysis passes on this crate
end of query stack

[saethlin]

You've chopped off the useful part of the error message. Please provide the entire error message, or as much as you are allowed.

[Wan9xy]

You've chopped off the useful part of the error message. Please provide the entire error message, or as much as you are allowed.

I'm sorry, here is the full trace with RUST_BACKTRACE=1

PS D:\src\http3-test\src-tauri> $env:RUST_BACKTRACE=1; $env:RUSTFLAGS='--cfg reqwest_unstable'; cargo run
   Compiling tauri-plugin-http v2.3.0
thread 'rustc' panicked at compiler\rustc_mir_transform\src\validate.rs:90:25:                                                                                                                                                                                                                                
broken MIR in Item(DefId(0:417 ~ tauri_plugin_http[c72f]::commands::fetch::{closure#0})) (after phase change to runtime-optimized) at bb143[0]:                                                                                                                                                               
Unsize coercion, but `Pin<Box<{async block@C:\Users\Administrator\.cargo\registry\src\index.crates.io-6f17d22bba15001f\tauri-plugin-http-2.3.0\src\commands.rs:317:27: 317:37}>>` isn't coercible to `Pin<Box<dyn Future<Output = std::result::Result<reqwest::Response, error::Error>> + Send + Sync>>`
stack backtrace:
   0: std::panicking::begin_panic_handler                                                                                                                                                                                                                                                                     
             at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\library/std\src\panicking.rs:665
   1: core::panicking::panic_fmt                                                                                                                                                                                                                                                                              
             at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\library/core\src\panicking.rs:76
   2: <rustc_mir_transform::sroa::ReplacementVisitor as rustc_middle::mir::visit::MutVisitor>::visit_local                                                                                                                                                                                                    
   3: <rustc_mir_transform::validate::Validator as rustc_mir_transform::pass_manager::MirPass>::run_pass                                                                                                                                                                                                      
   4: <rustc_mir_transform::simplify::SimplifyCfg as rustc_mir_transform::pass_manager::MirPass>::run_pass                                                                                                                                                                                                    
   5: rustc_mir_transform::optimized_mir                                                                                                                                                                                                                                                                      
   6: rustc_query_impl::plumbing::query_key_hash_verify_all                                                                                                                                                                                                                                                   
   7: rustc_ty_utils::ty::self_ty_of_trait_impl_enabling_order_dep_trait_object_hack                                                                                                                                                                                                                          
   8: rustc_query_impl::plumbing::query_key_hash_verify_all                                                                                                                                                                                                                                                   
   9: <rustc_middle::query::on_disk_cache::CacheEncoder as rustc_span::SpanEncoder>::encode_def_id                                                                                                                                                                                                            
  10: <rustc_middle::ty::context::TyCtxt>::coroutine_layout                                                                                                                                                                                                                                                   
  11: rustc_ty_utils::instance::resolve_instance_raw                                                                                                                                                                                                                                                          
  12: rustc_ty_utils::layout::layout_of                                                                                                                                                                                                                                                                       
  13: rustc_query_impl::plumbing::query_key_hash_verify_all                                                                                                                                                                                                                                                   
  14: rustc_ty_utils::ty::self_ty_of_trait_impl_enabling_order_dep_trait_object_hack                                                                                                                                                                                                                          
  15: rustc_query_impl::plumbing::query_key_hash_verify_all                                                                                                                                                                                                                                                   
  16: <rustc_mir_transform::known_panics_lint::KnownPanicsLint as rustc_mir_transform::pass_manager::MirLint>::run_lint                                                                                                                                                                                       
  17: rustc_mir_transform::run_analysis_to_runtime_passes                                                                                                                                                                                                                                                     
  18: rustc_mir_transform::mir_drops_elaborated_and_const_checked                                                                                                                                                                                                                                             
  19: rustc_query_impl::plumbing::query_key_hash_verify_all                                                                                                                                                                                                                                                   
  20: rustc_ty_utils::ty::self_ty_of_trait_impl_enabling_order_dep_trait_object_hack                                                                                                                                                                                                                          
  21: rustc_query_impl::plumbing::query_key_hash_verify_all
  22: rustc_interface::passes::resolver_for_lowering_raw
  23: rustc_interface::passes::analysis
  24: rustc_ty_utils::ty::adt_sized_constraint                                                                                                                                                                                                                                                                
  25: rustc_ty_utils::ty::adt_sized_constraint
  26: rustc_query_impl::query_system
  27: _rust_alloc_error_handler
  28: _rust_alloc_error_handler
  29: _rust_alloc_error_handler
  30: alloc::boxed::impl$28::call_once
             at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\library/alloc\src\boxed.rs:1972
  31: alloc::boxed::impl$28::call_once
             at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\library/alloc\src\boxed.rs:1972
  32: std::sys::pal::windows::thread::impl$0::new::thread_start
             at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\library/std\src\sys\pal\windows\thread.rs:55
  33: BaseThreadInitThunk
  34: RtlUserThreadStart
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: 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 1.84.1 (e71f9a9a9 2025-01-27) running on x86_64-pc-windows-msvc

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

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

query stack during panic:
#0 [optimized_mir] optimizing MIR for `commands::fetch::{closure#0}`
#1 [layout_of] computing layout of `{async fn body of commands::fetch<R>()}`
#2 [mir_drops_elaborated_and_const_checked] elaborating drops for `commands::fetch`
#3 [analysis] running analysis passes on this crate
end of query stack
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: error performing operation: fully_perform                                                                                                                                                                                                                                     
   --> C:\Users\Administrator\.cargo\registry\src\index.crates.io-6f17d22bba15001f\tauri-plugin-http-2.3.0\src\commands.rs:319:55
    |
319 |                 let rid = resources_table.add_request(Box::pin(fut));
    |                                                       ^^^^^^^^^^^^^
    |
note: delayed at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\compiler\rustc_trait_selection\src\traits\query\type_op\custom.rs:87:25
         0: std::backtrace_rs::backtrace::dbghelp64::trace
                   at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\library/std\src\..\..\backtrace\src\backtrace\dbghelp64.rs:91
         1: std::backtrace_rs::backtrace::trace_unsynchronized
                   at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\library/std\src\..\..\backtrace\src\backtrace\mod.rs:66
         2: std::backtrace::Backtrace::create
                   at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\library/std\src\backtrace.rs:331
         3: std::backtrace::Backtrace::capture
                   at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\library/std\src\backtrace.rs:296
         4: <rustc_errors::DiagCtxtHandle>::steal_fulfilled_expectation_ids
         5: <rustc_errors::DiagCtxtHandle>::emit_diagnostic
         6: <rustc_span::ErrorGuaranteed as rustc_errors::diagnostic::EmissionGuarantee>::emit_producing_guarantee
         7: <rustc_pattern_analysis::errors::NonExhaustiveOmittedPatternLintOnArm as rustc_errors::diagnostic::LintDiagnostic<()>>::decorate_lint
         8: <rustc_borrowck::region_infer::RegionInferenceContext>::eval_outlives
         9: <rustc_borrowck::type_check::TypeChecker>::push_region_constraints
        10: rustc_borrowck::dataflow::calculate_borrows_out_of_scope_at_location
        11: rustc_borrowck::dataflow::calculate_borrows_out_of_scope_at_location
        12: <rustc_borrowck::type_check::TypeChecker>::push_region_constraints
        13: rustc_borrowck::mir_borrowck
        14: rustc_query_impl::plumbing::query_key_hash_verify_all
        15: rustc_ty_utils::ty::self_ty_of_trait_impl_enabling_order_dep_trait_object_hack
        16: rustc_query_impl::plumbing::query_key_hash_verify_all
        17: <rustc_pattern_analysis::rustc::RustcPatCtxt as rustc_pattern_analysis::PatCx>::lint_non_contiguous_range_endpoints
        18: <rustc_borrowck::type_check::relate_tys::NllTypeRelating as rustc_type_ir::relate::TypeRelation<rustc_middle::ty::context::TyCtxt>>::consts
        19: <rustc_borrowck::type_check::TypeChecker>::push_region_constraints
        20: rustc_borrowck::dataflow::calculate_borrows_out_of_scope_at_location
        21: rustc_borrowck::dataflow::calculate_borrows_out_of_scope_at_location
        22: <rustc_borrowck::type_check::TypeChecker>::push_region_constraints
        23: rustc_borrowck::mir_borrowck
        24: rustc_query_impl::plumbing::query_key_hash_verify_all
        25: rustc_ty_utils::ty::self_ty_of_trait_impl_enabling_order_dep_trait_object_hack
        26: rustc_query_impl::plumbing::query_key_hash_verify_all
        27: <rustc_hir_typeck::upvar::InferBorrowKind as rustc_hir_typeck::expr_use_visitor::Delegate>::borrow
        28: rustc_hir_analysis::collect::type_of::type_of_opaque
        29: rustc_ty_utils::ty::adt_sized_constraint
        30: rustc_ty_utils::ty::self_ty_of_trait_impl_enabling_order_dep_trait_object_hack
        31: rustc_query_impl::query_system
        32: <rustc_hir_typeck::upvar::InferBorrowKind as rustc_hir_typeck::expr_use_visitor::Delegate>::mutate
        33: rustc_hir_analysis::collect::type_of::type_of
        34: rustc_query_impl::plumbing::query_key_hash_verify_all
        35: rustc_ty_utils::ty::self_ty_of_trait_impl_enabling_order_dep_trait_object_hack
        36: rustc_query_impl::plumbing::query_key_hash_verify_all
        37: <rustc_hir_typeck::upvar::InferBorrowKind as rustc_hir_typeck::expr_use_visitor::Delegate>::mutate
        38: rustc_hir_analysis::check::check::check_abi
        39: rustc_hir_analysis::check::wfcheck::check_well_formed
        40: rustc_query_impl::plumbing::query_key_hash_verify_all
        41: rustc_ty_utils::ty::self_ty_of_trait_impl_enabling_order_dep_trait_object_hack
        42: rustc_query_impl::plumbing::query_key_hash_verify_all
        43: <rustc_hir_typeck::upvar::InferBorrowKind as rustc_hir_typeck::expr_use_visitor::Delegate>::consume
        44: rustc_hir_analysis::check::wfcheck::check_mod_type_wf
        45: rustc_ty_utils::ty::adt_sized_constraint
        46: rustc_ty_utils::ty::adt_sized_constraint
        47: rustc_query_impl::query_system
        48: rustc_hir_analysis::check_crate
        49: rustc_interface::passes::resolver_for_lowering_raw
        50: rustc_interface::passes::analysis
        51: rustc_ty_utils::ty::adt_sized_constraint
        52: rustc_ty_utils::ty::adt_sized_constraint
        53: rustc_query_impl::query_system
        54: _rust_alloc_error_handler
        55: _rust_alloc_error_handler
        56: _rust_alloc_error_handler
        57: alloc::boxed::impl$28::call_once
                   at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\library/alloc\src\boxed.rs:1972
        58: alloc::boxed::impl$28::call_once
                   at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\library/alloc\src\boxed.rs:1972
        59: std::sys::pal::windows::thread::impl$0::new::thread_start
                   at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58\library/std\src\sys\pal\windows\thread.rs:55
        60: BaseThreadInitThunk
        61: RtlUserThreadStart
   --> C:\Users\Administrator\.cargo\registry\src\index.crates.io-6f17d22bba15001f\tauri-plugin-http-2.3.0\src\commands.rs:319:55
    |
319 |                 let rid = resources_table.add_request(Box::pin(fut));
    |                                                       ^^^^^^^^^^^^^

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 1.84.1 (e71f9a9a9 2025-01-27) running on x86_64-pc-windows-msvc

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

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

query stack during panic:
end of query stack
error: could not compile `tauri-plugin-http` (lib)                                                                                                                                                                                                                                                            

Caused by:
  process didn't exit successfully: `C:\Users\Administrator\.rustup\toolchains\stable-x86_64-pc-windows-msvc\bin\rustc.exe --crate-name tauri_plugin_http --edition=2021 C:\Users\Administrator\.cargo\registry\src\index.crates.io-6f17d22bba15001f\tauri-plugin-http-2.3.0\src\lib.rs --error-format=json --j
son=diagnostic-rendered-ansi,artifacts,future-incompat --diagnostic-width=302 --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg "feature=\"charset\"" --cfg "feature=\"cookies\"" --cfg "feature=\"default\"" --cfg "feature=\"http2\"" --cfg "feature=\"macos-system-con
figuration\"" --cfg "feature=\"rustls-tls\"" --check-cfg cfg(docsrs) --check-cfg "cfg(feature, values(\"blocking\", \"brotli\", \"charset\", \"cookies\", \"dangerous-settings\", \"default\", \"deflate\", \"gzip\", \"http2\", \"json\", \"macos-system-configuration\", \"multipart\", \"native-tls\", \"nat
ive-tls-alpn\", \"native-tls-vendored\", \"rustls-tls\", \"rustls-tls-manual-roots\", \"rustls-tls-native-roots\", \"rustls-tls-webpki-roots\", \"socks\", \"stream\", \"tracing\", \"trust-dns\", \"unsafe-headers\"))" -C metadata=f5bbd12ef7328d8e -C extra-filename=-f5bbd12ef7328d8e --out-dir D:\src\http
3-test\src-tauri\target\debug\deps -L dependency=D:\src\http3-test\src-tauri\target\debug\deps --extern data_url=D:\src\http3-test\src-tauri\target\debug\deps\libdata_url-c4b4bc6a18eb5590.rmeta --extern http=D:\src\http3-test\src-tauri\target\debug\deps\libhttp-56ec124f80b94cc5.rmeta --extern regex=D:\
src\http3-test\src-tauri\target\debug\deps\libregex-5437268effc614ca.rmeta --extern reqwest=D:\src\http3-test\src-tauri\target\debug\deps\libreqwest-a462ed9329b60e2f.rmeta --extern serde=D:\src\http3-test\src-tauri\target\debug\deps\libserde-92778bc281f3868e.rmeta --extern serde_json=D:\src\http3-test\
src-tauri\target\debug\deps\libserde_json-7c1e2a1cfe44ee25.rmeta --extern tauri=D:\src\http3-test\src-tauri\target\debug\deps\libtauri-53a8933a256d0576.rmeta --extern tauri_plugin_fs=D:\src\http3-test\src-tauri\target\debug\deps\libtauri_plugin_fs-be48d9e540419561.rmeta --extern thiserror=D:\src\http3-
test\src-tauri\target\debug\deps\libthiserror-81f7ea5a76fcb05c.rmeta --extern tokio=D:\src\http3-test\src-tauri\target\debug\deps\libtokio-343acfde05be58cf.rmeta --extern url=D:\src\http3-test\src-tauri\target\debug\deps\liburl-c3180afa4404d5d1.rmeta --extern urlpattern=D:\src\http3-test\src-tauri\targ
et\debug\deps\liburlpattern-99d35f42895bb430.rmeta --cap-lints allow --cfg reqwest_unstable -L native=C:\Users\Administrator\.cargo\registry\src\index.crates.io-6f17d22bba15001f\windows_x86_64_msvc-0.52.6\lib -L native=D:\src\http3-test\src-tauri\target\debug\build\ring-8c5175d0dd056d93\out -L native=D:\src\http3-test\src-tauri\target\debug\build\webview2-com-sys-77bfefcfd4f002d3\out\x64 --cfg desktop --check-cfg cfg(mobile) --check-cfg cfg(desktop)` (exit code: 0xc0000409, STATUS_STACK_BUFFER_OVERRUN)
PS D:\src\http3-test\src-tauri> 

[moxian]

Minimized to only depend on pin-project-lite:

# Cargo.toml
[package]
name = "rustc-bug1"
version = "0.1.0"
edition = "2021"

[lib]

[dependencies]
pin-project-lite = "0.2.11"

// lib.rs
use std::future::Future;
use std::pin::Pin;
use std::task::{Context, Poll};

use pin_project_lite::pin_project;

type CancelableResponseFuture = Pin<Box<dyn Future<Output = ()> + Send + Sync>>;

pin_project! {
    pub struct Root {
        #[pin]
        inner: InnerA,
    }
}

pin_project! {
    pub struct InnerA {
        #[pin]
        in_flight: InnerB,
    }
}

pub struct InnerB {
    inner: Pin<Box<dyn Future<Output = ()> + Send>>,
}

impl Root{
    fn new() -> Self{todo!()}
}

impl Future for Root {
    type Output = ();

    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
        todo!();
    }
}

pub async fn fetch() {
    let fut = async move {
        Root::new().await;        
    };
    let b: CancelableResponseFuture = Box::pin(fut);
}

Bisects to 0399709 / #130847

Given the words "optimizing mir" in the ICE, probably #130735 (??)
cc @compiler-errors

[compiler-errors]

I'll take a look anyways

[moxian]

smaller and self-contained:

// rustc --crate-type=lib --edition=2021
use std::future::Future;
use std::pin::Pin;
use std::task::{Context, Poll};

struct Root {
    inner: InnerB,
}

struct InnerB {
    inner: Pin<Box<dyn Future<Output = ()>>>,
}
impl Root {
    fn new() -> Self {
        todo!()
    }
}
impl Future for Root {
    type Output = ();
    fn poll(self: Pin<&mut Self>, _: &mut Context) -> Poll<Self::Output> {
        todo!();
    }
}
async fn fetch() {
    let fut = async {
        Root::new().await;
    };
    let _: Pin<Box<dyn Future<Output = ()> + Send>> = Box::pin(fut);
}

@rustbot label: +S-has-mcve +S-has-bisection +regression-from-stable-to-stable +T-types -needs-triage +A-coercions +A-pin