[INFO] cloning repository https://github.com/three-star-flex-book/bitdefender-rust-error-example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/three-star-flex-book/bitdefender-rust-error-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthree-star-flex-book%2Fbitdefender-rust-error-example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthree-star-flex-book%2Fbitdefender-rust-error-example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a734b5973eb81a68e1c0e8fbab07b8e98e32efe2 [INFO] checking three-star-flex-book/bitdefender-rust-error-example against master#ffa2e7ae8fbf9badc035740db949b9dae271c29f for pr-78338 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthree-star-flex-book%2Fbitdefender-rust-error-example" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/three-star-flex-book/bitdefender-rust-error-example on toolchain ffa2e7ae8fbf9badc035740db949b9dae271c29f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/three-star-flex-book/bitdefender-rust-error-example [INFO] finished tweaking git repo https://github.com/three-star-flex-book/bitdefender-rust-error-example [INFO] tweaked toml for git repo https://github.com/three-star-flex-book/bitdefender-rust-error-example written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/three-star-flex-book/bitdefender-rust-error-example already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6dd030fed34c7c8f687916ba9fceb8b3adf7a248080795ad5590b0f3166b6b22 [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" "6dd030fed34c7c8f687916ba9fceb8b3adf7a248080795ad5590b0f3166b6b22", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6dd030fed34c7c8f687916ba9fceb8b3adf7a248080795ad5590b0f3166b6b22", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6dd030fed34c7c8f687916ba9fceb8b3adf7a248080795ad5590b0f3166b6b22", kill_on_drop: false }` [INFO] [stdout] 6dd030fed34c7c8f687916ba9fceb8b3adf7a248080795ad5590b0f3166b6b22 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ab133473cfee689be31aa9b7f42aac9fabbe3ff47dc0c7fbcb4c2981c47e8bb3 [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" "ab133473cfee689be31aa9b7f42aac9fabbe3ff47dc0c7fbcb4c2981c47e8bb3", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling proc-macro2 v1.0.8 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling syn v1.0.14 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling memchr v2.3.0 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling typenum v1.11.2 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling httparse v1.3.4 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Compiling ryu v1.0.2 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking opaque-debug v0.2.3 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Checking base64 v0.11.0 [INFO] [stderr] Checking safemem v0.3.3 [INFO] [stderr] Checking dtoa v0.4.5 [INFO] [stderr] Checking try-lock v0.2.2 [INFO] [stderr] Checking remove_dir_all v0.5.2 [INFO] [stderr] Checking mime v0.3.16 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking ascii v0.9.3 [INFO] [stderr] Checking tower-service v0.3.0 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking urlencoding v1.0.0 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Checking http v0.2.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking block-padding v0.1.5 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling indexmap v1.3.2 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking buf_redux v0.8.4 [INFO] [stderr] Checking twoway v0.1.8 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Checking serde_json v1.0.47 [INFO] [stderr] Checking mime_guess v2.0.1 [INFO] [stderr] Checking combine v3.8.1 [INFO] [stderr] Checking mime v0.2.6 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking phf v0.7.24 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking url v2.1.1 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking sha-1 v0.8.2 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking input_buffer v0.2.0 [INFO] [stderr] Checking http v0.1.21 [INFO] [stderr] Checking serde_urlencoded v0.6.1 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking http-body v0.3.1 [INFO] [stderr] Checking headers-core v0.2.0 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Checking headers v0.3.1 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling mime_guess v1.8.7 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking tungstenite v0.9.2 [INFO] [stderr] Checking multipart v0.16.1 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling tokio-macros v0.2.4 [INFO] [stderr] Compiling pin-project-internal v0.4.8 [INFO] [stderr] Checking tokio v0.2.11 [INFO] [stderr] Compiling futures-macro v0.3.4 [INFO] [stderr] Checking pin-project v0.4.8 [INFO] [stderr] Checking futures-util v0.3.4 [INFO] [stderr] Checking tokio-util v0.2.0 [INFO] [stderr] Checking futures-executor v0.3.4 [INFO] [stderr] Checking h2 v0.2.1 [INFO] [stderr] Checking futures v0.3.4 [INFO] [stderr] Checking redis v0.15.1 [INFO] [stderr] Checking hyper v0.13.2 [INFO] [stderr] Checking warp v0.2.1 [INFO] [stderr] Checking warp-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `future` [INFO] [stdout] --> src/main.rs:3:21 [INFO] [stdout] | [INFO] [stdout] 3 | use futures::{join, future}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `future` [INFO] [stdout] --> src/main.rs:3:21 [INFO] [stdout] | [INFO] [stdout] 3 | use futures::{join, future}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 21 | return wait_both; [INFO] [stdout] | ^^^^^^^^^ expected `()`, found tuple [INFO] [stdout] | [INFO] [stdout] = note: expected unit type `()` [INFO] [stdout] found tuple `(std::result::Result, ())` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] thread 'rustc' panicked at 'Box', compiler/rustc_errors/src/lib.rs:945:9 [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] stack backtrace: [INFO] [stderr] 0: 0x7fc336dc9a20 - std::backtrace_rs::backtrace::libunwind::trace::h303a626d53553a64 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5 [INFO] [stderr] 1: 0x7fc336dc9a20 - std::backtrace_rs::backtrace::trace_unsynchronized::h6abb882733c3f18c [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7fc336dc9a20 - std::sys_common::backtrace::_print_fmt::h57829321f1d9217a [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x7fc336dc9a20 - ::fmt::h400b66a054640aac [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x7fc336e38e9c - core::fmt::write::h1857a60b204f1b6a [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/core/src/fmt/mod.rs:1076:17 [INFO] [stderr] 5: 0x7fc336dbb642 - std::io::Write::write_fmt::h6453b28c8b27c6ea [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/io/mod.rs:1516:15 [INFO] [stderr] 6: 0x7fc336dce9d5 - std::sys_common::backtrace::_print::h15cc4b3923cc9bc0 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x7fc336dce9d5 - std::sys_common::backtrace::print::h953c7be178c0674d [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x7fc336dce9d5 - std::panicking::default_hook::{{closure}}::h635d667f571198f0 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x7fc336dce678 - std::panicking::default_hook::h3bc2efb48060abaa [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:227:9 [INFO] [stderr] 10: 0x7fc337697618 - rustc_driver::report_ice::hbf1325c7565687ba [INFO] [stderr] 11: 0x7fc329bbfd36 - as core::ops::function::Fn>::call::ha91106ec706f8169 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/alloc/src/boxed.rs:1056:9 [INFO] [stderr] 12: 0x7fc329bd69cb - proc_macro::bridge::client::::enter::{{closure}}::{{closure}}::hb145429e2a456a8b [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/proc_macro/src/bridge/client.rs:320:21 [INFO] [stderr] 13: 0x7fc336dcf216 - std::panicking::rust_panic_with_hook::h887eb0c89f46b8b2 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:581:17 [INFO] [stderr] 14: 0x7fc33a643a2d - std::panicking::begin_panic::{{closure}}::hc1d905d2374ce0cc [INFO] [stderr] 15: 0x7fc33a643936 - std::sys_common::backtrace::__rust_end_short_backtrace::ha1feaa73cb1e05ce [INFO] [stderr] 16: 0x7fc33a64399f - std::panicking::begin_panic::h09616460625efa25 [INFO] [stderr] 17: 0x7fc33a67a380 - rustc_errors::HandlerInner::bug::hbb6554bd4fbc8852 [INFO] [stderr] 18: 0x7fc33a678e60 - rustc_errors::Handler::bug::h4feefeec7bb726ca [INFO] [stderr] 19: 0x7fc33a0eabc4 - rustc_middle::util::bug::opt_span_bug_fmt::{{closure}}::h22b92ed7b73b8340 [INFO] [stderr] 20: 0x7fc33a0e3e0b - rustc_middle::ty::context::tls::with_opt::{{closure}}::h32bfd9cf0b0a9393 [INFO] [stderr] 21: 0x7fc33a0e3db2 - rustc_middle::ty::context::tls::with_opt::h762464f893de2d96 [INFO] [stderr] 22: 0x7fc33a0eaae9 - rustc_middle::util::bug::opt_span_bug_fmt::h05648c19bbf99518 [INFO] [stderr] 23: 0x7fc33a0eaa5e - rustc_middle::util::bug::bug_fmt::h5d4f7ed12a8f1d0d [INFO] [stderr] 24: 0x7fc33a207706 - rustc_middle::ty::sty::::tuple_fields::hdc3dc0e1875e99ff [INFO] [stderr] 25: 0x7fc3399fcfe8 - rustc_trait_selection::traits::select::SelectionContext::copy_clone_conditions::h8ff43f065f427a31 [INFO] [stderr] 26: 0x7fc3399f8541 - rustc_trait_selection::traits::select::candidate_assembly::::assemble_candidates::h7f604d35beab439e [INFO] [stderr] 27: 0x7fc3399f693d - rustc_trait_selection::traits::select::candidate_assembly::::candidate_from_obligation_no_cache::h05f8c5b45c5e08a2 [INFO] [stderr] 28: 0x7fc339a07479 - rustc_query_system::dep_graph::graph::DepGraph::with_anon_task::h44ec985a7770338d [INFO] [stderr] 29: 0x7fc3399fe8d2 - rustc_trait_selection::traits::select::candidate_assembly::::candidate_from_obligation::he84ed255728ad44e [INFO] [stderr] 30: 0x7fc3399fb503 - rustc_trait_selection::traits::select::SelectionContext::evaluate_stack::h06e7ee3234d676cd [INFO] [stderr] 31: 0x7fc339a0c3d0 - rustc_query_system::dep_graph::graph::DepGraph::with_anon_task::hf442492fe7988b09 [INFO] [stderr] 32: 0x7fc3399faae4 - rustc_trait_selection::traits::select::SelectionContext::evaluate_trait_predicate_recursively::hb38f849d34368217 [INFO] [stderr] 33: 0x7fc339bc2a26 - rustc_trait_selection::traits::select::SelectionContext::evaluate_predicate_recursively::{{closure}}::ha75a9cb68e9796c1 [INFO] [stderr] 34: 0x7fc339a04dde - rustc_trait_selection::traits::select::SelectionContext::evaluate_predicate_recursively::h08dd972328f720e7 [INFO] [stderr] 35: 0x7fc3399ca6b4 - rustc_infer::infer::InferCtxt::probe::hf13a54a708ad210c [INFO] [stderr] 36: 0x7fc3399fa0e0 - rustc_trait_selection::traits::select::SelectionContext::evaluate_root_obligation::h954c58efaae55e17 [INFO] [stderr] 37: 0x7fc337d6dd66 - rustc_infer::infer::InferCtxtBuilder::enter_with_canonical::hdbc417ca7d0d6c33 [INFO] [stderr] 38: 0x7fc337dd97eb - rustc_traits::evaluate_obligation::evaluate_obligation::h6ad149b3038f3f29 [INFO] [stderr] 39: 0x7fc3399d039d - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::evaluate_obligation>::compute::hb3df2fb3e496fc5e [INFO] [stderr] 40: 0x7fc339a1bc59 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::heacdf35d72b91e29 [INFO] [stderr] 41: 0x7fc339b86cd0 - rustc_middle::ty::query::plumbing::::start_query::{{closure}}::{{closure}}::{{closure}}::h1335e7ad0f4ea52c [INFO] [stderr] 42: 0x7fc339b1250d - rustc_query_system::query::plumbing::get_query_impl::h3957bf19a016f15f [INFO] [stderr] 43: 0x7fc3399f258e - ::evaluate_obligation::hd3c48f874d2c435f [INFO] [stderr] 44: 0x7fc3399f262d - ::evaluate_obligation_no_overflow::h888ee85cdb54e495 [INFO] [stderr] 45: 0x7fc339b05d40 - rustc_trait_selection::traits::fulfill::FulfillProcessor::process_trait_obligation::h9f96ce64cbecfcf4 [INFO] [stderr] 46: 0x7fc339b04fe2 - rustc_trait_selection::traits::fulfill::FulfillProcessor::progress_changed_obligations::h2020dfafb477c00f [INFO] [stderr] 47: 0x7fc339b92239 - rustc_data_structures::obligation_forest::ObligationForest::process_obligations::h1d11017f52bfdd95 [INFO] [stderr] 48: 0x7fc339b042e4 - ::select_where_possible::hf96074721833b16c [INFO] [stderr] 49: 0x7fc3380ea084 - rustc_typeck::check::fn_ctxt::_impl::::select_obligations_where_possible::h5a7844f4370dc933 [INFO] [stderr] 50: 0x7fc3383628f7 - rustc_infer::infer::InferCtxtBuilder::enter::h6881f9376e4471a9 [INFO] [stderr] 51: 0x7fc338419158 - rustc_typeck::check::typeck::h7936b5f86fffb913 [INFO] [stderr] 52: 0x7fc33a5441a5 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::he31ecb2478271eb6 [INFO] [stderr] 53: 0x7fc33a0fe9c4 - rustc_data_structures::stack::ensure_sufficient_stack::h0fae324398ebb94b [INFO] [stderr] 54: 0x7fc339e9ec43 - rustc_query_system::query::plumbing::get_query_impl::h23431548fcf0457a [INFO] [stderr] 55: 0x7fc33a1f12f7 - rustc_middle::ty::context::TyCtxt::typeck_opt_const_arg::h3bd74cb09bd6e416 [INFO] [stderr] 56: 0x7fc3388e0758 - rustc_mir_build::thir::cx::Cx::new::hae441e3f756dd04d [INFO] [stderr] 57: 0x7fc3388a46c8 - rustc_infer::infer::InferCtxtBuilder::enter::hc3dcea69ea296949 [INFO] [stderr] 58: 0x7fc3387e5c93 - rustc_mir_build::build::mir_built::h1213ff50e2e6a0e1 [INFO] [stderr] 59: 0x7fc338e3e591 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_built>::compute::h48f449fd20c6d821 [INFO] [stderr] 60: 0x7fc338cf5062 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h64e586cbce9e64b6 [INFO] [stderr] 61: 0x7fc338d14167 - rustc_data_structures::stack::ensure_sufficient_stack::hcd9666a57ae15592 [INFO] [stderr] 62: 0x7fc338ae09b4 - rustc_query_system::query::plumbing::get_query_impl::h204e2d9ef53c9d61 [INFO] [stderr] 63: 0x7fc338e71c2f - rustc_mir::transform::check_unsafety::unsafety_check_result::hfa73150fbef5dd4b [INFO] [stderr] 64: 0x7fc338e4ca15 - core::ops::function::FnOnce::call_once::ha16d550cc2ad148e [INFO] [stderr] 65: 0x7fc338e3f78e - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::unsafety_check_result>::compute::h1325ed663a32656e [INFO] [stderr] 66: 0x7fc338cfdab7 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::hd407ccfcaf366716 [INFO] [stderr] 67: 0x7fc338d0ac71 - rustc_data_structures::stack::ensure_sufficient_stack::h2b9edb953b6b37ed [INFO] [stderr] 68: 0x7fc338b23c99 - rustc_query_system::query::plumbing::get_query_impl::h7a8ff46deb0129b0 [INFO] [stderr] 69: 0x7fc338b6250d - rustc_query_system::query::plumbing::ensure_query_impl::h5f3c48a1796f8afb [INFO] [stderr] 70: 0x7fc338e82f8b - rustc_mir::transform::mir_const::hf34ae3a27ea9647b [INFO] [stderr] 71: 0x7fc338e3e671 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_const>::compute::hb439a448b1775404 [INFO] [stderr] 72: 0x7fc338cf5062 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h64e586cbce9e64b6 [INFO] [stderr] 73: 0x7fc338d14167 - rustc_data_structures::stack::ensure_sufficient_stack::hcd9666a57ae15592 [INFO] [stderr] 74: 0x7fc338ae09b4 - rustc_query_system::query::plumbing::get_query_impl::h204e2d9ef53c9d61 [INFO] [stderr] 75: 0x7fc338e834ae - rustc_mir::transform::mir_promoted::h63d48cc42abf7992 [INFO] [stderr] 76: 0x7fc338e92041 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_promoted>::compute::hdf2326856f72cc26 [INFO] [stderr] 77: 0x7fc338cf19ae - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h5263bb496f38fe45 [INFO] [stderr] 78: 0x7fc338d07b67 - rustc_data_structures::stack::ensure_sufficient_stack::h05d573450a98be7a [INFO] [stderr] 79: 0x7fc338b0661f - rustc_query_system::query::plumbing::get_query_impl::h4d2eddc0469a3d56 [INFO] [stderr] 80: 0x7fc338ecef14 - rustc_mir::borrow_check::mir_borrowck::h15a86e919fc8eed4 [INFO] [stderr] 81: 0x7fc338e98e35 - core::ops::function::FnOnce::call_once::h03dbe0b786591256 [INFO] [stderr] 82: 0x7fc3383edd2e - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_borrowck>::compute::h6e0262522c39a99c [INFO] [stderr] 83: 0x7fc3382d1a37 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::hbccb591d25d97bba [INFO] [stderr] 84: 0x7fc33823f461 - rustc_data_structures::stack::ensure_sufficient_stack::hf9691a12a2696c86 [INFO] [stderr] 85: 0x7fc338150a79 - rustc_query_system::query::plumbing::get_query_impl::h8e706cf7049df2c3 [INFO] [stderr] 86: 0x7fc338420034 - rustc_typeck::collect::type_of::type_of::hc36be93746b1de48 [INFO] [stderr] 87: 0x7fc3381d1bff - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::type_of>::compute::hb3888e2d2bff40bd [INFO] [stderr] 88: 0x7fc3382cfc94 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h952ed8e8215ed554 [INFO] [stderr] 89: 0x7fc338232021 - rustc_data_structures::stack::ensure_sufficient_stack::h1396c8a5e30d56bc [INFO] [stderr] 90: 0x7fc3381263ff - rustc_query_system::query::plumbing::get_query_impl::h28946643b924e3d8 [INFO] [stderr] 91: 0x7fc3381f4cd3 - rustc_typeck::check::check::check_item_type::h790b0a968206d0a9 [INFO] [stderr] 92: 0x7fc3382b5122 - rustc_middle::hir::map::Map::visit_item_likes_in_module::hebcf6e6d5c88b804 [INFO] [stderr] 93: 0x7fc3381f8acd - rustc_typeck::check::check::check_mod_item_types::h7f4fb3e9fc4acba3 [INFO] [stderr] 94: 0x7fc3382b11fe - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::check_mod_item_types>::compute::h8a145d1b5479ca1f [INFO] [stderr] 95: 0x7fc3382cd807 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h8e6947eb9be02f4e [INFO] [stderr] 96: 0x7fc33823d564 - rustc_data_structures::stack::ensure_sufficient_stack::hdc0eadaac9a180e4 [INFO] [stderr] 97: 0x7fc338196a02 - rustc_query_system::query::plumbing::get_query_impl::hfaeae1bfdea1ee23 [INFO] [stderr] 98: 0x7fc33819b1de - rustc_query_system::query::plumbing::ensure_query_impl::h79037b18dc7d3ee5 [INFO] [stderr] 99: 0x7fc3382b76a4 - rustc_session::utils::::time::h7b414d0bb62f62b2 [INFO] [stderr] 100: 0x7fc338319dbf - rustc_typeck::check_crate::h19e2dfbdd8ea5557 [INFO] [stderr] 101: 0x7fc3378dcd95 - rustc_interface::passes::analysis::hf34e525a2b31f7c0 [INFO] [stderr] 102: 0x7fc337616d7b - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::analysis>::compute::h23cb841af51f0584 [INFO] [stderr] 103: 0x7fc3376b5057 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h7178e9f1ddee6943 [INFO] [stderr] 104: 0x7fc3376b03df - rustc_middle::ty::query::plumbing::::start_query::{{closure}}::{{closure}}::{{closure}}::h4025824db8759ceb [INFO] [stderr] 105: 0x7fc337641f10 - rustc_query_system::query::plumbing::get_query_impl::h29928f066778d4c4 [INFO] [stderr] 106: 0x7fc33761912b - rustc_interface::passes::QueryContext::enter::h0705343d8e4a95be [INFO] [stderr] 107: 0x7fc3376b24a2 - rustc_interface::queries::::enter::h6eb07f11eba80bd6 [INFO] [stderr] 108: 0x7fc3376792a2 - rustc_span::with_source_map::h3820d41b3a036910 [INFO] [stderr] 109: 0x7fc3376b39c2 - rustc_interface::interface::create_compiler_and_run::h08ad396f4e7721e0 [INFO] [stderr] 110: 0x7fc33769bd5a - scoped_tls::ScopedKey::set::hd425a36fbe06985e [INFO] [stderr] 111: 0x7fc3376b89b5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h23925571219dbc63 [INFO] [stderr] 112: 0x7fc3376363ce - core::ops::function::FnOnce::call_once{{vtable.shim}}::h43b61b9af30b3669 [INFO] [stderr] 113: 0x7fc336dde21a - as core::ops::function::FnOnce>::call_once::h88864ee659ddb161 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/alloc/src/boxed.rs:1042:9 [INFO] [stderr] 114: 0x7fc336dde21a - as core::ops::function::FnOnce>::call_once::h9f03cbdc7ab33431 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/alloc/src/boxed.rs:1042:9 [INFO] [stderr] 115: 0x7fc336dde21a - std::sys::unix::thread::Thread::new::thread_start::h5979dd5560a11418 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys/unix/thread.rs:89:17 [INFO] [stderr] 116: 0x7fc336cf9609 - start_thread [INFO] [stderr] 117: 0x7fc336c0d103 - clone [INFO] [stderr] 118: 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 (ffa2e7ae8 2020-10-24) 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@src/main.rs:8:14: 8:47]: std::clone::Clone` [INFO] [stderr] #1 [typeck] type-checking `start` [INFO] [stderr] #2 [mir_built] building MIR for `start` [INFO] [stderr] #3 [unsafety_check_result] unsafety-checking `start` [INFO] [stderr] #4 [mir_const] processing MIR for `start` [INFO] [stderr] #5 [mir_promoted] processing `start` [INFO] [stderr] #6 [mir_borrowck] borrow-checking `start` [INFO] [stderr] #7 [type_of] computing type of `start::{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 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `warp-example` [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[E0308]: mismatched types [INFO] [stdout] --> src/main.rs:21:12 [INFO] [stdout] | [INFO] [stdout] 21 | return wait_both; [INFO] [stdout] | ^^^^^^^^^ expected `()`, found tuple [INFO] [stdout] | [INFO] [stdout] = note: expected unit type `()` [INFO] [stdout] found tuple `(std::result::Result, ())` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] thread 'rustc' panicked at 'Box', compiler/rustc_errors/src/lib.rs:945:9 [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] stack backtrace: [INFO] [stderr] 0: 0x7f376741aa20 - std::backtrace_rs::backtrace::libunwind::trace::h303a626d53553a64 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5 [INFO] [stderr] 1: 0x7f376741aa20 - std::backtrace_rs::backtrace::trace_unsynchronized::h6abb882733c3f18c [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7f376741aa20 - std::sys_common::backtrace::_print_fmt::h57829321f1d9217a [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x7f376741aa20 - ::fmt::h400b66a054640aac [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x7f3767489e9c - core::fmt::write::h1857a60b204f1b6a [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/core/src/fmt/mod.rs:1076:17 [INFO] [stderr] 5: 0x7f376740c642 - std::io::Write::write_fmt::h6453b28c8b27c6ea [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/io/mod.rs:1516:15 [INFO] [stderr] 6: 0x7f376741f9d5 - std::sys_common::backtrace::_print::h15cc4b3923cc9bc0 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x7f376741f9d5 - std::sys_common::backtrace::print::h953c7be178c0674d [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x7f376741f9d5 - std::panicking::default_hook::{{closure}}::h635d667f571198f0 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x7f376741f678 - std::panicking::default_hook::h3bc2efb48060abaa [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:227:9 [INFO] [stderr] 10: 0x7f3767ce8618 - rustc_driver::report_ice::hbf1325c7565687ba [INFO] [stderr] 11: 0x7f375a1cbd36 - as core::ops::function::Fn>::call::ha91106ec706f8169 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/alloc/src/boxed.rs:1056:9 [INFO] [stderr] 12: 0x7f375a1e29cb - proc_macro::bridge::client::::enter::{{closure}}::{{closure}}::hb145429e2a456a8b [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/proc_macro/src/bridge/client.rs:320:21 [INFO] [stderr] 13: 0x7f3767420216 - std::panicking::rust_panic_with_hook::h887eb0c89f46b8b2 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/panicking.rs:581:17 [INFO] [stderr] 14: 0x7f376ac94a2d - std::panicking::begin_panic::{{closure}}::hc1d905d2374ce0cc [INFO] [stderr] 15: 0x7f376ac94936 - std::sys_common::backtrace::__rust_end_short_backtrace::ha1feaa73cb1e05ce [INFO] [stderr] 16: 0x7f376ac9499f - std::panicking::begin_panic::h09616460625efa25 [INFO] [stderr] 17: 0x7f376accb380 - rustc_errors::HandlerInner::bug::hbb6554bd4fbc8852 [INFO] [stderr] 18: 0x7f376acc9e60 - rustc_errors::Handler::bug::h4feefeec7bb726ca [INFO] [stderr] 19: 0x7f376a73bbc4 - rustc_middle::util::bug::opt_span_bug_fmt::{{closure}}::h22b92ed7b73b8340 [INFO] [stderr] 20: 0x7f376a734e0b - rustc_middle::ty::context::tls::with_opt::{{closure}}::h32bfd9cf0b0a9393 [INFO] [stderr] 21: 0x7f376a734db2 - rustc_middle::ty::context::tls::with_opt::h762464f893de2d96 [INFO] [stderr] 22: 0x7f376a73bae9 - rustc_middle::util::bug::opt_span_bug_fmt::h05648c19bbf99518 [INFO] [stderr] 23: 0x7f376a73ba5e - rustc_middle::util::bug::bug_fmt::h5d4f7ed12a8f1d0d [INFO] [stderr] 24: 0x7f376a858706 - rustc_middle::ty::sty::::tuple_fields::hdc3dc0e1875e99ff [INFO] [stderr] 25: 0x7f376a04dfe8 - rustc_trait_selection::traits::select::SelectionContext::copy_clone_conditions::h8ff43f065f427a31 [INFO] [stderr] 26: 0x7f376a049541 - rustc_trait_selection::traits::select::candidate_assembly::::assemble_candidates::h7f604d35beab439e [INFO] [stderr] 27: 0x7f376a04793d - rustc_trait_selection::traits::select::candidate_assembly::::candidate_from_obligation_no_cache::h05f8c5b45c5e08a2 [INFO] [stderr] 28: 0x7f376a058479 - rustc_query_system::dep_graph::graph::DepGraph::with_anon_task::h44ec985a7770338d [INFO] [stderr] 29: 0x7f376a04f8d2 - rustc_trait_selection::traits::select::candidate_assembly::::candidate_from_obligation::he84ed255728ad44e [INFO] [stderr] 30: 0x7f376a04c503 - rustc_trait_selection::traits::select::SelectionContext::evaluate_stack::h06e7ee3234d676cd [INFO] [stderr] 31: 0x7f376a05d3d0 - rustc_query_system::dep_graph::graph::DepGraph::with_anon_task::hf442492fe7988b09 [INFO] [stderr] 32: 0x7f376a04bae4 - rustc_trait_selection::traits::select::SelectionContext::evaluate_trait_predicate_recursively::hb38f849d34368217 [INFO] [stderr] 33: 0x7f376a213a26 - rustc_trait_selection::traits::select::SelectionContext::evaluate_predicate_recursively::{{closure}}::ha75a9cb68e9796c1 [INFO] [stderr] 34: 0x7f376a055dde - rustc_trait_selection::traits::select::SelectionContext::evaluate_predicate_recursively::h08dd972328f720e7 [INFO] [stderr] 35: 0x7f376a01b6b4 - rustc_infer::infer::InferCtxt::probe::hf13a54a708ad210c [INFO] [stderr] 36: 0x7f376a04b0e0 - rustc_trait_selection::traits::select::SelectionContext::evaluate_root_obligation::h954c58efaae55e17 [INFO] [stderr] 37: 0x7f37683bed66 - rustc_infer::infer::InferCtxtBuilder::enter_with_canonical::hdbc417ca7d0d6c33 [INFO] [stderr] 38: 0x7f376842a7eb - rustc_traits::evaluate_obligation::evaluate_obligation::h6ad149b3038f3f29 [INFO] [stderr] 39: 0x7f376a02139d - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::evaluate_obligation>::compute::hb3df2fb3e496fc5e [INFO] [stderr] 40: 0x7f376a06cc59 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::heacdf35d72b91e29 [INFO] [stderr] 41: 0x7f376a1d7cd0 - rustc_middle::ty::query::plumbing::::start_query::{{closure}}::{{closure}}::{{closure}}::h1335e7ad0f4ea52c [INFO] [stderr] 42: 0x7f376a16350d - rustc_query_system::query::plumbing::get_query_impl::h3957bf19a016f15f [INFO] [stderr] 43: 0x7f376a04358e - ::evaluate_obligation::hd3c48f874d2c435f [INFO] [stderr] 44: 0x7f376a04362d - ::evaluate_obligation_no_overflow::h888ee85cdb54e495 [INFO] [stderr] 45: 0x7f376a156d40 - rustc_trait_selection::traits::fulfill::FulfillProcessor::process_trait_obligation::h9f96ce64cbecfcf4 [INFO] [stderr] 46: 0x7f376a155fe2 - rustc_trait_selection::traits::fulfill::FulfillProcessor::progress_changed_obligations::h2020dfafb477c00f [INFO] [stderr] 47: 0x7f376a1e3239 - rustc_data_structures::obligation_forest::ObligationForest::process_obligations::h1d11017f52bfdd95 [INFO] [stderr] 48: 0x7f376a1552e4 - ::select_where_possible::hf96074721833b16c [INFO] [stderr] 49: 0x7f376873b084 - rustc_typeck::check::fn_ctxt::_impl::::select_obligations_where_possible::h5a7844f4370dc933 [INFO] [stderr] 50: 0x7f37689b38f7 - rustc_infer::infer::InferCtxtBuilder::enter::h6881f9376e4471a9 [INFO] [stderr] 51: 0x7f3768a6a158 - rustc_typeck::check::typeck::h7936b5f86fffb913 [INFO] [stderr] 52: 0x7f376ab951a5 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::he31ecb2478271eb6 [INFO] [stderr] 53: 0x7f376a74f9c4 - rustc_data_structures::stack::ensure_sufficient_stack::h0fae324398ebb94b [INFO] [stderr] 54: 0x7f376a4efc43 - rustc_query_system::query::plumbing::get_query_impl::h23431548fcf0457a [INFO] [stderr] 55: 0x7f376a8422f7 - rustc_middle::ty::context::TyCtxt::typeck_opt_const_arg::h3bd74cb09bd6e416 [INFO] [stderr] 56: 0x7f3768f31758 - rustc_mir_build::thir::cx::Cx::new::hae441e3f756dd04d [INFO] [stderr] 57: 0x7f3768ef56c8 - rustc_infer::infer::InferCtxtBuilder::enter::hc3dcea69ea296949 [INFO] [stderr] 58: 0x7f3768e36c93 - rustc_mir_build::build::mir_built::h1213ff50e2e6a0e1 [INFO] [stderr] 59: 0x7f376948f591 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_built>::compute::h48f449fd20c6d821 [INFO] [stderr] 60: 0x7f3769346062 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h64e586cbce9e64b6 [INFO] [stderr] 61: 0x7f3769365167 - rustc_data_structures::stack::ensure_sufficient_stack::hcd9666a57ae15592 [INFO] [stderr] 62: 0x7f37691319b4 - rustc_query_system::query::plumbing::get_query_impl::h204e2d9ef53c9d61 [INFO] [stderr] 63: 0x7f37694c2c2f - rustc_mir::transform::check_unsafety::unsafety_check_result::hfa73150fbef5dd4b [INFO] [stderr] 64: 0x7f376949da15 - core::ops::function::FnOnce::call_once::ha16d550cc2ad148e [INFO] [stderr] 65: 0x7f376949078e - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::unsafety_check_result>::compute::h1325ed663a32656e [INFO] [stderr] 66: 0x7f376934eab7 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::hd407ccfcaf366716 [INFO] [stderr] 67: 0x7f376935bc71 - rustc_data_structures::stack::ensure_sufficient_stack::h2b9edb953b6b37ed [INFO] [stderr] 68: 0x7f3769174c99 - rustc_query_system::query::plumbing::get_query_impl::h7a8ff46deb0129b0 [INFO] [stderr] 69: 0x7f37691b350d - rustc_query_system::query::plumbing::ensure_query_impl::h5f3c48a1796f8afb [INFO] [stderr] 70: 0x7f37694d3f8b - rustc_mir::transform::mir_const::hf34ae3a27ea9647b [INFO] [stderr] 71: 0x7f376948f671 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_const>::compute::hb439a448b1775404 [INFO] [stderr] 72: 0x7f3769346062 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h64e586cbce9e64b6 [INFO] [stderr] 73: 0x7f3769365167 - rustc_data_structures::stack::ensure_sufficient_stack::hcd9666a57ae15592 [INFO] [stderr] 74: 0x7f37691319b4 - rustc_query_system::query::plumbing::get_query_impl::h204e2d9ef53c9d61 [INFO] [stderr] 75: 0x7f37694d44ae - rustc_mir::transform::mir_promoted::h63d48cc42abf7992 [INFO] [stderr] 76: 0x7f37694e3041 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_promoted>::compute::hdf2326856f72cc26 [INFO] [stderr] 77: 0x7f37693429ae - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h5263bb496f38fe45 [INFO] [stderr] 78: 0x7f3769358b67 - rustc_data_structures::stack::ensure_sufficient_stack::h05d573450a98be7a [INFO] [stderr] 79: 0x7f376915761f - rustc_query_system::query::plumbing::get_query_impl::h4d2eddc0469a3d56 [INFO] [stderr] 80: 0x7f376951ff14 - rustc_mir::borrow_check::mir_borrowck::h15a86e919fc8eed4 [INFO] [stderr] 81: 0x7f37694e9e35 - core::ops::function::FnOnce::call_once::h03dbe0b786591256 [INFO] [stderr] 82: 0x7f3768a3ed2e - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::mir_borrowck>::compute::h6e0262522c39a99c [INFO] [stderr] 83: 0x7f3768922a37 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::hbccb591d25d97bba [INFO] [stderr] 84: 0x7f3768890461 - rustc_data_structures::stack::ensure_sufficient_stack::hf9691a12a2696c86 [INFO] [stderr] 85: 0x7f37687a1a79 - rustc_query_system::query::plumbing::get_query_impl::h8e706cf7049df2c3 [INFO] [stderr] 86: 0x7f3768a71034 - rustc_typeck::collect::type_of::type_of::hc36be93746b1de48 [INFO] [stderr] 87: 0x7f3768822bff - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::type_of>::compute::hb3888e2d2bff40bd [INFO] [stderr] 88: 0x7f3768920c94 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h952ed8e8215ed554 [INFO] [stderr] 89: 0x7f3768883021 - rustc_data_structures::stack::ensure_sufficient_stack::h1396c8a5e30d56bc [INFO] [stderr] 90: 0x7f37687773ff - rustc_query_system::query::plumbing::get_query_impl::h28946643b924e3d8 [INFO] [stderr] 91: 0x7f3768845cd3 - rustc_typeck::check::check::check_item_type::h790b0a968206d0a9 [INFO] [stderr] 92: 0x7f3768906122 - rustc_middle::hir::map::Map::visit_item_likes_in_module::hebcf6e6d5c88b804 [INFO] [stderr] 93: 0x7f3768849acd - rustc_typeck::check::check::check_mod_item_types::h7f4fb3e9fc4acba3 [INFO] [stderr] 94: 0x7f37689021fe - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::check_mod_item_types>::compute::h8a145d1b5479ca1f [INFO] [stderr] 95: 0x7f376891e807 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h8e6947eb9be02f4e [INFO] [stderr] 96: 0x7f376888e564 - rustc_data_structures::stack::ensure_sufficient_stack::hdc0eadaac9a180e4 [INFO] [stderr] 97: 0x7f37687e7a02 - rustc_query_system::query::plumbing::get_query_impl::hfaeae1bfdea1ee23 [INFO] [stderr] 98: 0x7f37687ec1de - rustc_query_system::query::plumbing::ensure_query_impl::h79037b18dc7d3ee5 [INFO] [stderr] 99: 0x7f37689086a4 - rustc_session::utils::::time::h7b414d0bb62f62b2 [INFO] [stderr] 100: 0x7f376896adbf - rustc_typeck::check_crate::h19e2dfbdd8ea5557 [INFO] [stderr] 101: 0x7f3767f2dd95 - rustc_interface::passes::analysis::hf34e525a2b31f7c0 [INFO] [stderr] 102: 0x7f3767c67d7b - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::analysis>::compute::h23cb841af51f0584 [INFO] [stderr] 103: 0x7f3767d06057 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h7178e9f1ddee6943 [INFO] [stderr] 104: 0x7f3767d013df - rustc_middle::ty::query::plumbing::::start_query::{{closure}}::{{closure}}::{{closure}}::h4025824db8759ceb [INFO] [stderr] 105: 0x7f3767c92f10 - rustc_query_system::query::plumbing::get_query_impl::h29928f066778d4c4 [INFO] [stderr] 106: 0x7f3767c6a12b - rustc_interface::passes::QueryContext::enter::h0705343d8e4a95be [INFO] [stderr] 107: 0x7f3767d034a2 - rustc_interface::queries::::enter::h6eb07f11eba80bd6 [INFO] [stderr] 108: 0x7f3767cca2a2 - rustc_span::with_source_map::h3820d41b3a036910 [INFO] [stderr] 109: 0x7f3767d049c2 - rustc_interface::interface::create_compiler_and_run::h08ad396f4e7721e0 [INFO] [stderr] 110: 0x7f3767cecd5a - scoped_tls::ScopedKey::set::hd425a36fbe06985e [INFO] [stderr] 111: 0x7f3767d099b5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h23925571219dbc63 [INFO] [stderr] 112: 0x7f3767c873ce - core::ops::function::FnOnce::call_once{{vtable.shim}}::h43b61b9af30b3669 [INFO] [stderr] 113: 0x7f376742f21a - as core::ops::function::FnOnce>::call_once::h88864ee659ddb161 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/alloc/src/boxed.rs:1042:9 [INFO] [stderr] 114: 0x7f376742f21a - as core::ops::function::FnOnce>::call_once::h9f03cbdc7ab33431 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/alloc/src/boxed.rs:1042:9 [INFO] [stderr] 115: 0x7f376742f21a - std::sys::unix::thread::Thread::new::thread_start::h5979dd5560a11418 [INFO] [stderr] at /rustc/ffa2e7ae8fbf9badc035740db949b9dae271c29f/library/std/src/sys/unix/thread.rs:89:17 [INFO] [stderr] 116: 0x7f376734a609 - start_thread [INFO] [stderr] 117: 0x7f376725e103 - clone [INFO] [stderr] 118: 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 (ffa2e7ae8 2020-10-24) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 [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@src/main.rs:8:14: 8:47]: std::clone::Clone` [INFO] [stderr] #1 [typeck] type-checking `start` [INFO] [stderr] #2 [mir_built] building MIR for `start` [INFO] [stderr] #3 [unsafety_check_result] unsafety-checking `start` [INFO] [stderr] #4 [mir_const] processing MIR for `start` [INFO] [stderr] #5 [mir_promoted] processing `start` [INFO] [stderr] #6 [mir_borrowck] borrow-checking `start` [INFO] [stderr] #7 [type_of] computing type of `start::{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 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "ab133473cfee689be31aa9b7f42aac9fabbe3ff47dc0c7fbcb4c2981c47e8bb3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ab133473cfee689be31aa9b7f42aac9fabbe3ff47dc0c7fbcb4c2981c47e8bb3", kill_on_drop: false }` [INFO] [stdout] ab133473cfee689be31aa9b7f42aac9fabbe3ff47dc0c7fbcb4c2981c47e8bb3