[INFO] fetching crate actix-web-httpauth 0.5.0... [INFO] checking actix-web-httpauth-0.5.0 against try#1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73 for pr-78461 [INFO] extracting crate actix-web-httpauth 0.5.0 into /workspace/builds/worker-11/source [INFO] validating manifest of crates.io crate actix-web-httpauth 0.5.0 on toolchain 1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate actix-web-httpauth 0.5.0 [INFO] finished tweaking crates.io crate actix-web-httpauth 0.5.0 [INFO] tweaked toml for crates.io crate actix-web-httpauth 0.5.0 written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate crates.io crate actix-web-httpauth 0.5.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded time v0.2.18 [INFO] [stderr] Downloaded actix-web v3.0.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 45991321f61820d2efb4bc59028228c7b7945813a7155d05ea5d01d81185b46d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "45991321f61820d2efb4bc59028228c7b7945813a7155d05ea5d01d81185b46d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "45991321f61820d2efb4bc59028228c7b7945813a7155d05ea5d01d81185b46d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "45991321f61820d2efb4bc59028228c7b7945813a7155d05ea5d01d81185b46d", kill_on_drop: false }` [INFO] [stdout] 45991321f61820d2efb4bc59028228c7b7945813a7155d05ea5d01d81185b46d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 04275216c6a9a856751fc1269fd59372a1911798a84821d9fce1dea44333c47a [INFO] running `Command { std: "docker" "start" "-a" "04275216c6a9a856751fc1269fd59372a1911798a84821d9fce1dea44333c47a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.21 [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling syn v1.0.40 [INFO] [stderr] Checking futures-core v0.3.5 [INFO] [stderr] Checking futures-sink v0.3.5 [INFO] [stderr] Compiling pin-project-internal v0.4.23 [INFO] [stderr] Checking once_cell v1.4.1 [INFO] [stderr] Checking pin-project-lite v0.1.7 [INFO] [stderr] Checking futures-io v0.3.5 [INFO] [stderr] Checking instant v0.1.6 [INFO] [stderr] Checking either v1.6.0 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Checking object v0.20.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Compiling serde_json v1.0.57 [INFO] [stderr] Checking hashbrown v0.9.0 [INFO] [stderr] Compiling standback v0.2.10 [INFO] [stderr] Compiling time v0.2.18 [INFO] [stderr] Checking tracing-core v0.1.16 [INFO] [stderr] Checking miniz_oxide v0.4.1 [INFO] [stderr] Checking futures-channel v0.3.5 [INFO] [stderr] Checking futures-task v0.3.5 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking indexmap v1.6.0 [INFO] [stderr] Checking tracing v0.1.19 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking net2 v0.2.35 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking signal-hook-registry v1.2.1 [INFO] [stderr] Checking parking_lot_core v0.8.0 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking getrandom v0.1.15 [INFO] [stderr] Checking hostname v0.3.1 [INFO] [stderr] Checking socket2 v0.3.15 [INFO] [stderr] Checking resolv-conf v0.6.3 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking parking_lot v0.11.0 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking tokio v0.2.22 [INFO] [stderr] Checking backtrace v0.3.50 [INFO] [stderr] Checking tokio-util v0.3.1 [INFO] [stderr] Checking tokio-util v0.2.0 [INFO] [stderr] Checking actix-codec v0.2.0 [INFO] [stderr] Compiling futures-macro v0.3.5 [INFO] [stderr] Compiling derive_more v0.99.10 [INFO] [stderr] Compiling actix-macros v0.1.2 [INFO] [stderr] Compiling serde_derive v1.0.116 [INFO] [stderr] Compiling thiserror-impl v1.0.20 [INFO] [stderr] Compiling enum-as-inner v0.3.3 [INFO] [stderr] Compiling async-trait v0.1.40 [INFO] [stderr] Compiling time-macros-impl v0.1.1 [INFO] [stderr] Compiling actix-web-codegen v0.3.0 [INFO] [stderr] Checking time-macros v0.1.0 [INFO] [stderr] Checking thiserror v1.0.20 [INFO] [stderr] Checking cookie v0.14.2 [INFO] [stderr] Checking pin-project v0.4.23 [INFO] [stderr] Checking futures-util v0.3.5 [INFO] [stderr] Checking actix-codec v0.3.0 [INFO] [stderr] Checking actix-threadpool v0.3.3 [INFO] [stderr] Checking serde v1.0.116 [INFO] [stderr] Checking futures-executor v0.3.5 [INFO] [stderr] Checking actix-rt v1.1.1 [INFO] [stderr] Checking actix-service v1.0.6 [INFO] [stderr] Checking h2 v0.2.6 [INFO] [stderr] Checking futures v0.3.5 [INFO] [stderr] Checking trust-dns-proto v0.19.5 [INFO] [stderr] Checking actix-utils v2.0.0 [INFO] [stderr] Checking actix-utils v1.0.6 [INFO] [stderr] Checking actix-tls v2.0.0 [INFO] [stderr] Checking actix-server v1.0.3 [INFO] [stderr] Checking serde_urlencoded v0.6.1 [INFO] [stderr] Checking actix-router v0.2.4 [INFO] [stderr] Checking actix-testing v1.0.1 [INFO] [stderr] Checking trust-dns-resolver v0.19.5 [INFO] [stderr] Checking actix-connect v2.0.0 [INFO] [stderr] Checking actix-http v2.0.0 [INFO] [stderr] Checking awc v2.0.0 [INFO] [stderr] Checking actix-web v3.0.0 [INFO] [stderr] Checking actix-web-httpauth v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `actix_rt` [INFO] [stdout] --> src/middleware.rs:247:7 [INFO] [stdout] | [INFO] [stdout] 247 | #[actix_rt::test] [INFO] [stdout] | ^^^^^^^^ use of undeclared crate or module `actix_rt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `actix_rt` [INFO] [stdout] --> src/middleware.rs:270:7 [INFO] [stdout] | [INFO] [stdout] 270 | #[actix_rt::test] [INFO] [stdout] | ^^^^^^^^ use of undeclared crate or module `actix_rt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `actix_rt` [INFO] [stdout] --> src/middleware.rs:252:21 [INFO] [stdout] | [INFO] [stdout] 252 | actix_rt::time::delay_for(std::time::Duration::from_secs(1)).await; [INFO] [stdout] | ^^^^^^^^ use of undeclared crate or module `actix_rt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `actix_rt` [INFO] [stdout] --> src/middleware.rs:275:21 [INFO] [stdout] | [INFO] [stdout] 275 | actix_rt::time::delay_for(std::time::Duration::from_secs(1)).await; [INFO] [stdout] | ^^^^^^^^ use of undeclared crate or module `actix_rt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0433`. [INFO] [stdout] [INFO] [stderr] error: could not compile `actix-web-httpauth` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `actix_rt` [INFO] [stdout] --> examples/middleware.rs:14:3 [INFO] [stdout] | [INFO] [stdout] 14 | #[actix_rt::main] [INFO] [stdout] | ^^^^^^^^ use of undeclared crate or module `actix_rt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `actix_rt` [INFO] [stdout] --> examples/middleware-closure.rs:5:3 [INFO] [stdout] | [INFO] [stdout] 5 | #[actix_rt::main] [INFO] [stdout] | ^^^^^^^^ use of undeclared crate or module `actix_rt` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: `main` has invalid return type `impl std::future::Future` [INFO] [stdout] --> examples/middleware.rs:15:20 [INFO] [stdout] | [INFO] [stdout] 15 | async fn main() -> std::io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ `main` can only return types that implement `Termination` [INFO] [stdout] | [INFO] [stdout] = help: consider using `()`, or a `Result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: internal compiler error: compiler/rustc_middle/src/ty/sty.rs:2150:18: tuple_fields called on non-tuple [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] thread 'rustc' panicked at 'Box', compiler/rustc_errors/src/lib.rs:945:9 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7facdf396da0 - std::backtrace_rs::backtrace::libunwind::trace::h448c56741b6011d3 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5 [INFO] [stderr] 1: 0x7facdf396da0 - std::backtrace_rs::backtrace::trace_unsynchronized::h881b9d30a8a89a0c [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7facdf396da0 - std::sys_common::backtrace::_print_fmt::h720a2f61f75b9f58 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x7facdf396da0 - ::fmt::h8d62bbfda6d5c836 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x7facdf406cdc - core::fmt::write::h1857a60b204f1b6a [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x7facdf388a02 - std::io::Write::write_fmt::h16a9fe7680ac245c [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/io/mod.rs:1518:15 [INFO] [stderr] 6: 0x7facdf39bd55 - std::sys_common::backtrace::_print::h9ba51a6db618de7d [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x7facdf39bd55 - std::sys_common::backtrace::print::h5f20e41c85e91716 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x7facdf39bd55 - std::panicking::default_hook::{{closure}}::h8d48653392f3b04c [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x7facdf39b9f8 - std::panicking::default_hook::hb3948d1f74b6ff4c [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/panicking.rs:227:9 [INFO] [stderr] 10: 0x7facdfc62cd8 - rustc_driver::report_ice::h1ddbc5609a6e1f37 [INFO] [stderr] 11: 0x7facdf39c656 - std::panicking::rust_panic_with_hook::h55d23fef0ad751bc [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/panicking.rs:597:17 [INFO] [stderr] 12: 0x7face2c655cd - std::panicking::begin_panic::{{closure}}::h4b123e1d8e3ae463 [INFO] [stderr] 13: 0x7face2c65506 - std::sys_common::backtrace::__rust_end_short_backtrace::ha21fec08f03d728b [INFO] [stderr] 14: 0x7face2c6559f - std::panicking::begin_panic::hc0c81fab1e0acd00 [INFO] [stderr] 15: 0x7face2c74920 - rustc_errors::HandlerInner::bug::h26f9bc1a7147687e [INFO] [stderr] 16: 0x7face2c73470 - rustc_errors::Handler::bug::h2149bffe74600666 [INFO] [stderr] 17: 0x7face26d12b4 - rustc_middle::util::bug::opt_span_bug_fmt::{{closure}}::hb4ddd0d3902006f3 [INFO] [stderr] 18: 0x7face26caceb - rustc_middle::ty::context::tls::with_opt::{{closure}}::ha7f81bc36cab3c9f [INFO] [stderr] 19: 0x7face26ca6a2 - rustc_middle::ty::context::tls::with_opt::hf0c2c2aff96e53ba [INFO] [stderr] 20: 0x7face26d11d9 - rustc_middle::util::bug::opt_span_bug_fmt::hc7cbb029c2646db9 [INFO] [stderr] 21: 0x7face26d114e - rustc_middle::util::bug::bug_fmt::hb51c412c48cda8bb [INFO] [stderr] 22: 0x7face27f4216 - rustc_middle::ty::sty::::tuple_fields::hcffd66056c4b0b40 [INFO] [stderr] 23: 0x7face1fb95c8 - rustc_trait_selection::traits::select::SelectionContext::copy_clone_conditions::h95882b20956e73e1 [INFO] [stderr] 24: 0x7face1fb4b21 - rustc_trait_selection::traits::select::candidate_assembly::::assemble_candidates::h54990b7b6affc102 [INFO] [stderr] 25: 0x7face1fb2f1d - rustc_trait_selection::traits::select::candidate_assembly::::candidate_from_obligation_no_cache::ha99d83e20ddb8b6a [INFO] [stderr] 26: 0x7face1fc8a59 - rustc_query_system::dep_graph::graph::DepGraph::with_anon_task::hffe7c4030ffea93a [INFO] [stderr] 27: 0x7face1fbaeb2 - rustc_trait_selection::traits::select::candidate_assembly::::candidate_from_obligation::hfcfd3c271bd53aa9 [INFO] [stderr] 28: 0x7face1fb7ae3 - rustc_trait_selection::traits::select::SelectionContext::evaluate_stack::h4ad24a0bed665604 [INFO] [stderr] 29: 0x7face1fc6c80 - rustc_query_system::dep_graph::graph::DepGraph::with_anon_task::hba94b248f9424a51 [INFO] [stderr] 30: 0x7face1fb70c4 - rustc_trait_selection::traits::select::SelectionContext::evaluate_trait_predicate_recursively::h9133d2ec84e07cb7 [INFO] [stderr] 31: 0x7face21716f6 - rustc_trait_selection::traits::select::SelectionContext::evaluate_predicate_recursively::{{closure}}::hfeffc9d35f96e5e2 [INFO] [stderr] 32: 0x7face1fc127e - rustc_trait_selection::traits::select::SelectionContext::evaluate_predicate_recursively::ha94c0345657d01a6 [INFO] [stderr] 33: 0x7face1f86744 - rustc_infer::infer::InferCtxt::probe::hc7ac934f95713179 [INFO] [stderr] 34: 0x7face1fb66c0 - rustc_trait_selection::traits::select::SelectionContext::evaluate_root_obligation::ha7df528801dc1d6e [INFO] [stderr] 35: 0x7face0334116 - rustc_infer::infer::InferCtxtBuilder::enter_with_canonical::h7af0d1e7f72f5920 [INFO] [stderr] 36: 0x7face03a36ab - rustc_traits::evaluate_obligation::evaluate_obligation::hbba655fd524cb538 [INFO] [stderr] 37: 0x7face1f8c80d - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::evaluate_obligation>::compute::h74e4853d136e0e79 [INFO] [stderr] 38: 0x7face1fce6e9 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h59eddc515be1fa17 [INFO] [stderr] 39: 0x7face213cd00 - rustc_middle::ty::query::plumbing::::start_query::{{closure}}::{{closure}}::{{closure}}::h26e1479b297dbecb [INFO] [stderr] 40: 0x7face2110b57 - rustc_query_system::query::plumbing::get_query_impl::hc1eb4259b8d6f99b [INFO] [stderr] 41: 0x7face1faeb1e - ::evaluate_obligation::hfb4c8f6b80a9a72c [INFO] [stderr] 42: 0x7face1faebbd - ::evaluate_obligation_no_overflow::haee136c42e20a21a [INFO] [stderr] 43: 0x7face2170871 - rustc_trait_selection::traits::fulfill::FulfillProcessor::process_trait_obligation::hcb0e5e71047a0554 [INFO] [stderr] 44: 0x7face216f312 - rustc_trait_selection::traits::fulfill::FulfillProcessor::progress_changed_obligations::h84d4f4036c390b92 [INFO] [stderr] 45: 0x7face216daf9 - ::select_where_possible::hc09c7cb52f73fa04 [INFO] [stderr] 46: 0x7face06b6d94 - rustc_typeck::check::fn_ctxt::_impl::::select_obligations_where_possible::hbbc6bbd1a8b63832 [INFO] [stderr] 47: 0x7face091ad27 - rustc_infer::infer::InferCtxtBuilder::enter::h33c2ca6d940255f7 [INFO] [stderr] 48: 0x7face09da438 - rustc_typeck::check::typeck::hf5dca34d9f9397ea [INFO] [stderr] 49: 0x7face2afcd55 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h0072f21e8e447059 [INFO] [stderr] 50: 0x7face26fe104 - rustc_data_structures::stack::ensure_sufficient_stack::hd8fdee1b26a97891 [INFO] [stderr] 51: 0x7face24fcb10 - rustc_query_system::query::plumbing::get_query_impl::hf7888d9f4b4fbdcb [INFO] [stderr] 52: 0x7face27dddc7 - rustc_middle::ty::context::TyCtxt::typeck_opt_const_arg::hc98b98b6c2aad945 [INFO] [stderr] 53: 0x7face0ead6a8 - rustc_mir_build::thir::cx::Cx::new::h4d9a82915242024f [INFO] [stderr] 54: 0x7face0e72078 - rustc_infer::infer::InferCtxtBuilder::enter::h33c7a826552e96e8 [INFO] [stderr] 55: 0x7face0db1713 - rustc_mir_build::build::mir_built::hd7790bf83253b0d2 [INFO] [stderr] 56: 0x7face1416081 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_built>::compute::h2148015e1ad65661 [INFO] [stderr] 57: 0x7face12bec22 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h2adf6cc49b809e3f [INFO] [stderr] 58: 0x7face12de2f7 - rustc_data_structures::stack::ensure_sufficient_stack::h4d72c365faf4b05c [INFO] [stderr] 59: 0x7face112545b - rustc_query_system::query::plumbing::get_query_impl::he22c088bf0c8fa3d [INFO] [stderr] 60: 0x7face144960f - rustc_mir::transform::check_unsafety::unsafety_check_result::hde16db30f1dda2cd [INFO] [stderr] 61: 0x7face1427775 - core::ops::function::FnOnce::call_once::heb1c8f23fdac986e [INFO] [stderr] 62: 0x7face14171ae - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::unsafety_check_result>::compute::h447b3165463783c9 [INFO] [stderr] 63: 0x7face12c7f67 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h771545ad11e25583 [INFO] [stderr] 64: 0x7face12db2e1 - rustc_data_structures::stack::ensure_sufficient_stack::h255c369e246ea8b6 [INFO] [stderr] 65: 0x7face10f27f9 - rustc_query_system::query::plumbing::get_query_impl::h908c573597d466f7 [INFO] [stderr] 66: 0x7face1132cdd - rustc_query_system::query::plumbing::ensure_query_impl::hda72f219f8c4aa2b [INFO] [stderr] 67: 0x7face145b01b - rustc_mir::transform::mir_const::h6a7cd40d112c5d47 [INFO] [stderr] 68: 0x7face1416161 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_const>::compute::hc714828b54c35498 [INFO] [stderr] 69: 0x7face12bec22 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h2adf6cc49b809e3f [INFO] [stderr] 70: 0x7face12de2f7 - rustc_data_structures::stack::ensure_sufficient_stack::h4d72c365faf4b05c [INFO] [stderr] 71: 0x7face112545b - rustc_query_system::query::plumbing::get_query_impl::he22c088bf0c8fa3d [INFO] [stderr] 72: 0x7face145b568 - rustc_mir::transform::mir_promoted::h11c86e17a21f02e3 [INFO] [stderr] 73: 0x7face146a651 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_promoted>::compute::h2be1b1a2812453f8 [INFO] [stderr] 74: 0x7face12c8b8e - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h791a3464464c2d4a [INFO] [stderr] 75: 0x7face12e1557 - rustc_data_structures::stack::ensure_sufficient_stack::h7ab2f7b9a177b637 [INFO] [stderr] 76: 0x7face10d0b13 - rustc_query_system::query::plumbing::get_query_impl::h4b7116a238bdbdb8 [INFO] [stderr] 77: 0x7face14a3da4 - rustc_mir::borrow_check::mir_borrowck::h6357219ad7113c8d [INFO] [stderr] 78: 0x7face1473945 - core::ops::function::FnOnce::call_once::h54e1c81aa063f019 [INFO] [stderr] 79: 0x7face09aef1e - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_borrowck>::compute::hca7dcb61fb1feb52 [INFO] [stderr] 80: 0x7face08884b7 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h3b8624e729a2649d [INFO] [stderr] 81: 0x7face07faea1 - rustc_data_structures::stack::ensure_sufficient_stack::h8895399c883eebdc [INFO] [stderr] 82: 0x7face07317c9 - rustc_query_system::query::plumbing::get_query_impl::h8a49494f6bfde567 [INFO] [stderr] 83: 0x7face09e07f4 - rustc_typeck::collect::type_of::type_of::hed1911eee21c060f [INFO] [stderr] 84: 0x7face078004f - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::type_of>::compute::hb30f0c811ecdc862 [INFO] [stderr] 85: 0x7face088ed94 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h8caf40725832e907 [INFO] [stderr] 86: 0x7face07fec11 - rustc_data_structures::stack::ensure_sufficient_stack::hc349f3c0c1864025 [INFO] [stderr] 87: 0x7face070a02f - rustc_query_system::query::plumbing::get_query_impl::h40bbcad9976a2974 [INFO] [stderr] 88: 0x7face07a1fa0 - rustc_typeck::check::check::check_item_type::h312a9630d2e8583f [INFO] [stderr] 89: 0x7face0878f52 - rustc_middle::hir::map::Map::visit_item_likes_in_module::h31031fdbec6686c9 [INFO] [stderr] 90: 0x7face07a5d1d - rustc_typeck::check::check::check_mod_item_types::h8e5411c090465432 [INFO] [stderr] 91: 0x7face087536e - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::check_mod_item_types>::compute::h40e3ac4cfb7e03bd [INFO] [stderr] 92: 0x7face0889167 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h433ab8ff9548448b [INFO] [stderr] 93: 0x7face07f65b4 - rustc_data_structures::stack::ensure_sufficient_stack::h375beaac5c060c07 [INFO] [stderr] 94: 0x7face072eb95 - rustc_query_system::query::plumbing::get_query_impl::h8988d8f0af80ad4b [INFO] [stderr] 95: 0x7face0761f6e - rustc_query_system::query::plumbing::ensure_query_impl::h0a14174df6193467 [INFO] [stderr] 96: 0x7face087abd4 - rustc_session::utils::::time::h35dcfd17dbfe14c2 [INFO] [stderr] 97: 0x7face08de4c2 - rustc_typeck::check_crate::he6ac80d39108f9c5 [INFO] [stderr] 98: 0x7facdfeb3f5e - rustc_interface::passes::analysis::h78326215bfd650a0 [INFO] [stderr] 99: 0x7facdfca319b - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::analysis>::compute::hf8d4bc54d08537f3 [INFO] [stderr] 100: 0x7facdfc835f7 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h6d03accb53ed1239 [INFO] [stderr] 101: 0x7facdfc8000f - rustc_middle::ty::query::plumbing::::start_query::{{closure}}::{{closure}}::{{closure}}::h947bb326d17d8606 [INFO] [stderr] 102: 0x7facdfc0c91e - rustc_query_system::query::plumbing::get_query_impl::h448d10ab90370983 [INFO] [stderr] 103: 0x7facdfca670f - rustc_interface::passes::QueryContext::enter::hbf7a36e966e91449 [INFO] [stderr] 104: 0x7facdfc80fb5 - rustc_interface::queries::::enter::h25b522245624a405 [INFO] [stderr] 105: 0x7facdfc67677 - rustc_span::with_source_map::h7455fffe3cd153a4 [INFO] [stderr] 106: 0x7facdfc7c831 - scoped_tls::ScopedKey::set::hf66ed7b91c632933 [INFO] [stderr] 107: 0x7facdfc86aa5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h6018fd1291694eb1 [INFO] [stderr] 108: 0x7facdfbeead8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha87e074c60e800b5 [INFO] [stderr] 109: 0x7facdf3ab65a - as core::ops::function::FnOnce>::call_once::h9e7afb7a0a438236 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/alloc/src/boxed.rs:1312:9 [INFO] [stderr] 110: 0x7facdf3ab65a - as core::ops::function::FnOnce>::call_once::h70c646c4271337a1 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/alloc/src/boxed.rs:1312:9 [INFO] [stderr] 111: 0x7facdf3ab65a - std::sys::unix::thread::Thread::new::thread_start::h35d2b8d36f210d02 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/sys/unix/thread.rs:89:17 [INFO] [stderr] 112: 0x7facdf2c6609 - start_thread [INFO] [stderr] 113: 0x7facdf1da103 - clone [INFO] [stderr] 114: 0x0 - [INFO] [stderr] [INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] 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 [INFO] [stderr] [INFO] [stderr] note: rustc 1.49.0-nightly (1b5ce9528 2020-10-29) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type bin [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] query stack during panic: [INFO] [stderr] #0 [evaluate_obligation] evaluating trait selection obligation `[closure@examples/middleware.rs:16:21: 22:6]: std::clone::Clone` [INFO] [stderr] #1 [typeck] type-checking `main` [INFO] [stderr] #2 [mir_built] building MIR for `main` [INFO] [stderr] #3 [unsafety_check_result] unsafety-checking `main` [INFO] [stderr] #4 [mir_const] processing MIR for `main` [INFO] [stderr] #5 [mir_promoted] processing `main` [INFO] [stderr] #6 [mir_borrowck] borrow-checking `main` [INFO] [stderr] #7 [type_of] computing type of `main::{opaque#0}` [INFO] [stderr] #8 [check_mod_item_types] checking item types in top-level module [INFO] [stderr] #9 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0433. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] thread 'rustc' panicked at 'Box', compiler/rustc_errors/src/lib.rs:945:9 [INFO] [stdout] error[E0277]: `main` has invalid return type `impl std::future::Future` [INFO] [stdout] --> examples/middleware-closure.rs:6:20 [INFO] [stdout] | [INFO] [stdout] 6 | async fn main() -> std::io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ `main` can only return types that implement `Termination` [INFO] [stdout] | [INFO] [stdout] = help: consider using `()`, or a `Result` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] stack backtrace: [INFO] [stdout] error: internal compiler error: compiler/rustc_middle/src/ty/sty.rs:2150:18: tuple_fields called on non-tuple [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 0: 0x7f095b6a7da0 - std::backtrace_rs::backtrace::libunwind::trace::h448c56741b6011d3 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5 [INFO] [stderr] 1: 0x7f095b6a7da0 - std::backtrace_rs::backtrace::trace_unsynchronized::h881b9d30a8a89a0c [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7f095b6a7da0 - std::sys_common::backtrace::_print_fmt::h720a2f61f75b9f58 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x7f095b6a7da0 - ::fmt::h8d62bbfda6d5c836 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x7f095b717cdc - core::fmt::write::h1857a60b204f1b6a [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/core/src/fmt/mod.rs:1078:17 [INFO] [stderr] 5: 0x7f095b699a02 - std::io::Write::write_fmt::h16a9fe7680ac245c [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/io/mod.rs:1518:15 [INFO] [stderr] 6: 0x7f095b6acd55 - std::sys_common::backtrace::_print::h9ba51a6db618de7d [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x7f095b6acd55 - std::sys_common::backtrace::print::h5f20e41c85e91716 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x7f095b6acd55 - std::panicking::default_hook::{{closure}}::h8d48653392f3b04c [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x7f095b6ac9f8 - std::panicking::default_hook::hb3948d1f74b6ff4c [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/panicking.rs:227:9 [INFO] [stderr] 10: 0x7f095bf73cd8 - rustc_driver::report_ice::h1ddbc5609a6e1f37 [INFO] [stderr] 11: 0x7f095b6ad656 - std::panicking::rust_panic_with_hook::h55d23fef0ad751bc [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/panicking.rs:597:17 [INFO] [stderr] 12: 0x7f095ef765cd - std::panicking::begin_panic::{{closure}}::h4b123e1d8e3ae463 [INFO] [stderr] 13: 0x7f095ef76506 - std::sys_common::backtrace::__rust_end_short_backtrace::ha21fec08f03d728b [INFO] [stderr] 14: 0x7f095ef7659f - std::panicking::begin_panic::hc0c81fab1e0acd00 [INFO] [stderr] 15: 0x7f095ef85920 - rustc_errors::HandlerInner::bug::h26f9bc1a7147687e [INFO] [stderr] 16: 0x7f095ef84470 - rustc_errors::Handler::bug::h2149bffe74600666 [INFO] [stderr] 17: 0x7f095e9e22b4 - rustc_middle::util::bug::opt_span_bug_fmt::{{closure}}::hb4ddd0d3902006f3 [INFO] [stderr] 18: 0x7f095e9dbceb - rustc_middle::ty::context::tls::with_opt::{{closure}}::ha7f81bc36cab3c9f [INFO] [stderr] 19: 0x7f095e9db6a2 - rustc_middle::ty::context::tls::with_opt::hf0c2c2aff96e53ba [INFO] [stderr] 20: 0x7f095e9e21d9 - rustc_middle::util::bug::opt_span_bug_fmt::hc7cbb029c2646db9 [INFO] [stderr] 21: 0x7f095e9e214e - rustc_middle::util::bug::bug_fmt::hb51c412c48cda8bb [INFO] [stderr] 22: 0x7f095eb05216 - rustc_middle::ty::sty::::tuple_fields::hcffd66056c4b0b40 [INFO] [stderr] 23: 0x7f095e2ca5c8 - rustc_trait_selection::traits::select::SelectionContext::copy_clone_conditions::h95882b20956e73e1 [INFO] [stderr] 24: 0x7f095e2c5b21 - rustc_trait_selection::traits::select::candidate_assembly::::assemble_candidates::h54990b7b6affc102 [INFO] [stderr] 25: 0x7f095e2c3f1d - rustc_trait_selection::traits::select::candidate_assembly::::candidate_from_obligation_no_cache::ha99d83e20ddb8b6a [INFO] [stderr] 26: 0x7f095e2d9a59 - rustc_query_system::dep_graph::graph::DepGraph::with_anon_task::hffe7c4030ffea93a [INFO] [stderr] 27: 0x7f095e2cbeb2 - rustc_trait_selection::traits::select::candidate_assembly::::candidate_from_obligation::hfcfd3c271bd53aa9 [INFO] [stderr] 28: 0x7f095e2c8ae3 - rustc_trait_selection::traits::select::SelectionContext::evaluate_stack::h4ad24a0bed665604 [INFO] [stderr] 29: 0x7f095e2d7c80 - rustc_query_system::dep_graph::graph::DepGraph::with_anon_task::hba94b248f9424a51 [INFO] [stderr] 30: 0x7f095e2c80c4 - rustc_trait_selection::traits::select::SelectionContext::evaluate_trait_predicate_recursively::h9133d2ec84e07cb7 [INFO] [stderr] 31: 0x7f095e4826f6 - rustc_trait_selection::traits::select::SelectionContext::evaluate_predicate_recursively::{{closure}}::hfeffc9d35f96e5e2 [INFO] [stderr] 32: 0x7f095e2d227e - rustc_trait_selection::traits::select::SelectionContext::evaluate_predicate_recursively::ha94c0345657d01a6 [INFO] [stderr] 33: 0x7f095e297744 - rustc_infer::infer::InferCtxt::probe::hc7ac934f95713179 [INFO] [stderr] 34: 0x7f095e2c76c0 - rustc_trait_selection::traits::select::SelectionContext::evaluate_root_obligation::ha7df528801dc1d6e [INFO] [stderr] 35: 0x7f095c645116 - rustc_infer::infer::InferCtxtBuilder::enter_with_canonical::h7af0d1e7f72f5920 [INFO] [stderr] 36: 0x7f095c6b46ab - rustc_traits::evaluate_obligation::evaluate_obligation::hbba655fd524cb538 [INFO] [stderr] 37: 0x7f095e29d80d - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::evaluate_obligation>::compute::h74e4853d136e0e79 [INFO] [stderr] 38: 0x7f095e2df6e9 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h59eddc515be1fa17 [INFO] [stderr] 39: 0x7f095e44dd00 - rustc_middle::ty::query::plumbing::::start_query::{{closure}}::{{closure}}::{{closure}}::h26e1479b297dbecb [INFO] [stderr] 40: 0x7f095e421b57 - rustc_query_system::query::plumbing::get_query_impl::hc1eb4259b8d6f99b [INFO] [stderr] 41: 0x7f095e2bfb1e - ::evaluate_obligation::hfb4c8f6b80a9a72c [INFO] [stderr] 42: 0x7f095e2bfbbd - ::evaluate_obligation_no_overflow::haee136c42e20a21a [INFO] [stderr] 43: 0x7f095e481871 - rustc_trait_selection::traits::fulfill::FulfillProcessor::process_trait_obligation::hcb0e5e71047a0554 [INFO] [stderr] 44: 0x7f095e480312 - rustc_trait_selection::traits::fulfill::FulfillProcessor::progress_changed_obligations::h84d4f4036c390b92 [INFO] [stderr] 45: 0x7f095e47eaf9 - ::select_where_possible::hc09c7cb52f73fa04 [INFO] [stderr] 46: 0x7f095c9c7d94 - rustc_typeck::check::fn_ctxt::_impl::::select_obligations_where_possible::hbbc6bbd1a8b63832 [INFO] [stderr] 47: 0x7f095cc2bd27 - rustc_infer::infer::InferCtxtBuilder::enter::h33c2ca6d940255f7 [INFO] [stderr] 48: 0x7f095cceb438 - rustc_typeck::check::typeck::hf5dca34d9f9397ea [INFO] [stderr] 49: 0x7f095ee0dd55 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h0072f21e8e447059 [INFO] [stderr] 50: 0x7f095ea0f104 - rustc_data_structures::stack::ensure_sufficient_stack::hd8fdee1b26a97891 [INFO] [stderr] 51: 0x7f095e80db10 - rustc_query_system::query::plumbing::get_query_impl::hf7888d9f4b4fbdcb [INFO] [stderr] 52: 0x7f095eaeedc7 - rustc_middle::ty::context::TyCtxt::typeck_opt_const_arg::hc98b98b6c2aad945 [INFO] [stderr] 53: 0x7f095d1be6a8 - rustc_mir_build::thir::cx::Cx::new::h4d9a82915242024f [INFO] [stderr] 54: 0x7f095d183078 - rustc_infer::infer::InferCtxtBuilder::enter::h33c7a826552e96e8 [INFO] [stderr] 55: 0x7f095d0c2713 - rustc_mir_build::build::mir_built::hd7790bf83253b0d2 [INFO] [stderr] 56: 0x7f095d727081 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_built>::compute::h2148015e1ad65661 [INFO] [stderr] 57: 0x7f095d5cfc22 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h2adf6cc49b809e3f [INFO] [stderr] 58: 0x7f095d5ef2f7 - rustc_data_structures::stack::ensure_sufficient_stack::h4d72c365faf4b05c [INFO] [stderr] 59: 0x7f095d43645b - rustc_query_system::query::plumbing::get_query_impl::he22c088bf0c8fa3d [INFO] [stderr] 60: 0x7f095d75a60f - rustc_mir::transform::check_unsafety::unsafety_check_result::hde16db30f1dda2cd [INFO] [stderr] 61: 0x7f095d738775 - core::ops::function::FnOnce::call_once::heb1c8f23fdac986e [INFO] [stderr] 62: 0x7f095d7281ae - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::unsafety_check_result>::compute::h447b3165463783c9 [INFO] [stderr] 63: 0x7f095d5d8f67 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h771545ad11e25583 [INFO] [stderr] 64: 0x7f095d5ec2e1 - rustc_data_structures::stack::ensure_sufficient_stack::h255c369e246ea8b6 [INFO] [stderr] 65: 0x7f095d4037f9 - rustc_query_system::query::plumbing::get_query_impl::h908c573597d466f7 [INFO] [stderr] 66: 0x7f095d443cdd - rustc_query_system::query::plumbing::ensure_query_impl::hda72f219f8c4aa2b [INFO] [stderr] 67: 0x7f095d76c01b - rustc_mir::transform::mir_const::h6a7cd40d112c5d47 [INFO] [stderr] 68: 0x7f095d727161 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_const>::compute::hc714828b54c35498 [INFO] [stderr] 69: 0x7f095d5cfc22 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h2adf6cc49b809e3f [INFO] [stderr] 70: 0x7f095d5ef2f7 - rustc_data_structures::stack::ensure_sufficient_stack::h4d72c365faf4b05c [INFO] [stderr] 71: 0x7f095d43645b - rustc_query_system::query::plumbing::get_query_impl::he22c088bf0c8fa3d [INFO] [stderr] 72: 0x7f095d76c568 - rustc_mir::transform::mir_promoted::h11c86e17a21f02e3 [INFO] [stderr] 73: 0x7f095d77b651 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_promoted>::compute::h2be1b1a2812453f8 [INFO] [stderr] 74: 0x7f095d5d9b8e - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h791a3464464c2d4a [INFO] [stderr] 75: 0x7f095d5f2557 - rustc_data_structures::stack::ensure_sufficient_stack::h7ab2f7b9a177b637 [INFO] [stderr] 76: 0x7f095d3e1b13 - rustc_query_system::query::plumbing::get_query_impl::h4b7116a238bdbdb8 [INFO] [stderr] 77: 0x7f095d7b4da4 - rustc_mir::borrow_check::mir_borrowck::h6357219ad7113c8d [INFO] [stderr] 78: 0x7f095d784945 - core::ops::function::FnOnce::call_once::h54e1c81aa063f019 [INFO] [stderr] 79: 0x7f095ccbff1e - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_borrowck>::compute::hca7dcb61fb1feb52 [INFO] [stderr] 80: 0x7f095cb994b7 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h3b8624e729a2649d [INFO] [stderr] 81: 0x7f095cb0bea1 - rustc_data_structures::stack::ensure_sufficient_stack::h8895399c883eebdc [INFO] [stderr] 82: 0x7f095ca427c9 - rustc_query_system::query::plumbing::get_query_impl::h8a49494f6bfde567 [INFO] [stderr] 83: 0x7f095ccf17f4 - rustc_typeck::collect::type_of::type_of::hed1911eee21c060f [INFO] [stderr] 84: 0x7f095ca9104f - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::type_of>::compute::hb30f0c811ecdc862 [INFO] [stderr] 85: 0x7f095cb9fd94 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h8caf40725832e907 [INFO] [stderr] 86: 0x7f095cb0fc11 - rustc_data_structures::stack::ensure_sufficient_stack::hc349f3c0c1864025 [INFO] [stderr] 87: 0x7f095ca1b02f - rustc_query_system::query::plumbing::get_query_impl::h40bbcad9976a2974 [INFO] [stderr] 88: 0x7f095cab2fa0 - rustc_typeck::check::check::check_item_type::h312a9630d2e8583f [INFO] [stderr] 89: 0x7f095cb89f52 - rustc_middle::hir::map::Map::visit_item_likes_in_module::h31031fdbec6686c9 [INFO] [stderr] 90: 0x7f095cab6d1d - rustc_typeck::check::check::check_mod_item_types::h8e5411c090465432 [INFO] [stderr] 91: 0x7f095cb8636e - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::check_mod_item_types>::compute::h40e3ac4cfb7e03bd [INFO] [stderr] 92: 0x7f095cb9a167 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h433ab8ff9548448b [INFO] [stderr] 93: 0x7f095cb075b4 - rustc_data_structures::stack::ensure_sufficient_stack::h375beaac5c060c07 [INFO] [stderr] 94: 0x7f095ca3fb95 - rustc_query_system::query::plumbing::get_query_impl::h8988d8f0af80ad4b [INFO] [stderr] 95: 0x7f095ca72f6e - rustc_query_system::query::plumbing::ensure_query_impl::h0a14174df6193467 [INFO] [stderr] 96: 0x7f095cb8bbd4 - rustc_session::utils::::time::h35dcfd17dbfe14c2 [INFO] [stderr] 97: 0x7f095cbef4c2 - rustc_typeck::check_crate::he6ac80d39108f9c5 [INFO] [stderr] 98: 0x7f095c1c4f5e - rustc_interface::passes::analysis::h78326215bfd650a0 [INFO] [stderr] 99: 0x7f095bfb419b - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::analysis>::compute::hf8d4bc54d08537f3 [INFO] [stderr] 100: 0x7f095bf945f7 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h6d03accb53ed1239 [INFO] [stderr] 101: 0x7f095bf9100f - rustc_middle::ty::query::plumbing::::start_query::{{closure}}::{{closure}}::{{closure}}::h947bb326d17d8606 [INFO] [stderr] 102: 0x7f095bf1d91e - rustc_query_system::query::plumbing::get_query_impl::h448d10ab90370983 [INFO] [stderr] 103: 0x7f095bfb770f - rustc_interface::passes::QueryContext::enter::hbf7a36e966e91449 [INFO] [stderr] 104: 0x7f095bf91fb5 - rustc_interface::queries::::enter::h25b522245624a405 [INFO] [stderr] 105: 0x7f095bf78677 - rustc_span::with_source_map::h7455fffe3cd153a4 [INFO] [stderr] 106: 0x7f095bf8d831 - scoped_tls::ScopedKey::set::hf66ed7b91c632933 [INFO] [stderr] 107: 0x7f095bf97aa5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h6018fd1291694eb1 [INFO] [stderr] 108: 0x7f095beffad8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha87e074c60e800b5 [INFO] [stderr] 109: 0x7f095b6bc65a - as core::ops::function::FnOnce>::call_once::h9e7afb7a0a438236 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/alloc/src/boxed.rs:1312:9 [INFO] [stderr] 110: 0x7f095b6bc65a - as core::ops::function::FnOnce>::call_once::h70c646c4271337a1 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/alloc/src/boxed.rs:1312:9 [INFO] [stderr] 111: 0x7f095b6bc65a - std::sys::unix::thread::Thread::new::thread_start::h35d2b8d36f210d02 [INFO] [stderr] at /rustc/1b5ce95284bc3170a1f4a55c6ec8a06b3e85ff73/library/std/src/sys/unix/thread.rs:89:17 [INFO] [stderr] 112: 0x7f095b5d7609 - start_thread [INFO] [stderr] 113: 0x7f095b4eb103 - clone [INFO] [stderr] 114: 0x0 - [INFO] [stderr] [INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] 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 [INFO] [stderr] [INFO] [stderr] note: rustc 1.49.0-nightly (1b5ce9528 2020-10-29) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type bin [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] query stack during panic: [INFO] [stderr] #0 [evaluate_obligation] evaluating trait selection obligation `[closure@examples/middleware-closure.rs:7:21: 13:6]: std::clone::Clone` [INFO] [stderr] #1 [typeck] type-checking `main` [INFO] [stderr] #2 [mir_built] building MIR for `main` [INFO] [stderr] #3 [unsafety_check_result] unsafety-checking `main` [INFO] [stderr] #4 [mir_const] processing MIR for `main` [INFO] [stderr] #5 [mir_promoted] processing `main` [INFO] [stderr] #6 [mir_borrowck] borrow-checking `main` [INFO] [stderr] #7 [type_of] computing type of `main::{opaque#0}` [INFO] [stderr] #8 [check_mod_item_types] checking item types in top-level module [INFO] [stderr] #9 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0433. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "04275216c6a9a856751fc1269fd59372a1911798a84821d9fce1dea44333c47a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "04275216c6a9a856751fc1269fd59372a1911798a84821d9fce1dea44333c47a", kill_on_drop: false }` [INFO] [stdout] 04275216c6a9a856751fc1269fd59372a1911798a84821d9fce1dea44333c47a