[INFO] fetching crate messagebus 0.5.2... [INFO] checking messagebus-0.5.2 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744 [INFO] extracting crate messagebus 0.5.2 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate messagebus 0.5.2 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate messagebus 0.5.2 [INFO] finished tweaking crates.io crate messagebus 0.5.2 [INFO] tweaked toml for crates.io crate messagebus 0.5.2 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate crates.io crate messagebus 0.5.2 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b3f74795de99fdaf1e187e5b10fbc03d425b0532e98d63bdd43390654cb3d78d [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" "b3f74795de99fdaf1e187e5b10fbc03d425b0532e98d63bdd43390654cb3d78d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b3f74795de99fdaf1e187e5b10fbc03d425b0532e98d63bdd43390654cb3d78d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3f74795de99fdaf1e187e5b10fbc03d425b0532e98d63bdd43390654cb3d78d", kill_on_drop: false }` [INFO] [stdout] b3f74795de99fdaf1e187e5b10fbc03d425b0532e98d63bdd43390654cb3d78d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2f20b0baab19e930ea5ac269fc496d6687d0a7af15796898a06b4ca7dbd3348f [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" "2f20b0baab19e930ea5ac269fc496d6687d0a7af15796898a06b4ca7dbd3348f", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.58 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Checking futures-sink v0.3.11 [INFO] [stderr] Checking futures-core v0.3.11 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking futures-io v0.3.11 [INFO] [stderr] Checking futures-task v0.3.11 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Checking futures-channel v0.3.11 [INFO] [stderr] Checking parking_lot_core v0.8.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling tokio v1.1.1 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Checking crossbeam-epoch v0.9.1 [INFO] [stderr] Checking crossbeam-queue v0.3.1 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking crossbeam v0.8.0 [INFO] [stderr] Compiling futures-macro v0.3.11 [INFO] [stderr] Compiling tokio-macros v1.0.0 [INFO] [stderr] Compiling async-trait v0.1.42 [INFO] [stderr] Checking futures-util v0.3.11 [INFO] [stderr] Checking futures-executor v0.3.11 [INFO] [stderr] Checking futures v0.3.11 [INFO] [stderr] Checking messagebus v0.5.2 (/opt/rustwide/workdir) [INFO] [stderr] thread 'rustc' panicked at 'Box', /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panic.rs:59:5 [INFO] [stdout] error: internal compiler error: compiler/rustc_mir/src/transform/generator.rs:751:13: Broken MIR: generator contains type Pin>> in MIR, but typeck only knows about for<'r, 's, 't0, 't1, 't2, 't3, 't4, 't5> {ResumeTy, T, &'r mut tokio::sync::mpsc::Receiver FnOnce(&'t6 mut T) -> Pin>> + std::marker::Send + 's)>>, tokio::sync::mpsc::Receiver FnOnce(&'t6 mut T) -> Pin>> + std::marker::Send + 't0)>>, impl futures::Future, (), Box<(dyn for<'t6> FnOnce(&'t6 mut T) -> Pin>> + std::marker::Send + 't3)>, &'t4 mut T, Pin + 't5)>>} [INFO] [stdout] --> src/untyped.rs:146:52 [INFO] [stdout] | [INFO] [stdout] 146 | futures::executor::block_on(async move { [INFO] [stdout] | ____________________________________________________^ [INFO] [stdout] 147 | | let mut obj = builder(); [INFO] [stdout] 148 | | [INFO] [stdout] 149 | | loop { [INFO] [stdout] ... | [INFO] [stdout] 157 | | } [INFO] [stdout] 158 | | }); [INFO] [stdout] | |_____________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7fa8a314edd0 - std::backtrace_rs::backtrace::libunwind::trace::hec7eaac9435d3512 [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stderr] 1: 0x7fa8a314edd0 - std::backtrace_rs::backtrace::trace_unsynchronized::h42791b8fa12b7daa [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x7fa8a314edd0 - std::sys_common::backtrace::_print_fmt::h3da3ebe04fb665a8 [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stderr] 3: 0x7fa8a314edd0 - ::fmt::he40bcdde3c4491cd [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stderr] 4: 0x7fa8a31c006f - core::fmt::write::h2c729149c08098ab [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/core/src/fmt/mod.rs:1094:17 [INFO] [stderr] 5: 0x7fa8a3143865 - std::io::Write::write_fmt::h28e0f2f58b8d7b7e [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/io/mod.rs:1578:15 [INFO] [stderr] 6: 0x7fa8a31529bb - std::sys_common::backtrace::_print::h7f0223b1e3d898fc [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stderr] 7: 0x7fa8a31529bb - std::sys_common::backtrace::print::h58edd634a14c2d4c [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stderr] 8: 0x7fa8a31529bb - std::panicking::default_hook::{{closure}}::h71657a7591430164 [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:208:50 [INFO] [stderr] 9: 0x7fa8a315249d - std::panicking::default_hook::hcdf4eb5db072c85b [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:225:9 [INFO] [stderr] 10: 0x7fa8a391001d - rustc_driver::report_ice::hc702a08d9fb7377c [INFO] [stderr] 11: 0x7fa893f4fbf3 - as core::ops::function::Fn>::call::h639245338120297d [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/alloc/src/boxed.rs:1560:9 [INFO] [stderr] 12: 0x7fa893f41dd6 - proc_macro::bridge::client::::enter::{{closure}}::{{closure}}::h54def22ba4eba293 [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/proc_macro/src/bridge/client.rs:320:21 [INFO] [stderr] 13: 0x7fa8a31530d0 - std::panicking::rust_panic_with_hook::hfb91e961ffb5b8e0 [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/panicking.rs:595:17 [INFO] [stderr] 14: 0x7fa8a423c8ce - std::panicking::begin_panic::{{closure}}::h24a38702b45ac0f3 [INFO] [stderr] 15: 0x7fa8a423c609 - std::sys_common::backtrace::__rust_end_short_backtrace::h02cc30df948cb652 [INFO] [stderr] 16: 0x7fa8a423c822 - std::panicking::begin_panic::h4dd79645ccae3b6e [INFO] [stderr] 17: 0x7fa8a41cc0c0 - std::panic::panic_any::hb6abb086932facc4 [INFO] [stderr] 18: 0x7fa8a41c7215 - rustc_errors::HandlerInner::span_bug::hd47e97195754211a [INFO] [stderr] 19: 0x7fa8a41c7623 - rustc_errors::Handler::span_bug::ha07d3f2efbc4b3d3 [INFO] [stderr] 20: 0x7fa8a416a88b - rustc_middle::ty::context::tls::with_opt::h41357ac587925078 [INFO] [stderr] 21: 0x7fa8a416b1c0 - rustc_middle::util::bug::opt_span_bug_fmt::hdf5251129308f472 [INFO] [stderr] 22: 0x7fa8a416b18c - rustc_middle::util::bug::span_bug_fmt::h6df431584eb135c1 [INFO] [stderr] 23: 0x7fa8a59268fa - ::run_pass::h35fb8f3bebb5fa76 [INFO] [stderr] 24: 0x7fa8a4eed4d5 - rustc_mir::transform::run_passes::hadd0ed6897143b9e [INFO] [stderr] 25: 0x7fa8a598aa1e - rustc_mir::transform::optimized_mir::h39ed0b27b4aefc95 [INFO] [stderr] 26: 0x7fa8a4cfeadf - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h39a9f78d160833d0 [INFO] [stderr] 27: 0x7fa8a4ce064c - rustc_data_structures::stack::ensure_sufficient_stack::h005ce2d6bf554ae7 [INFO] [stderr] 28: 0x7fa8a4ca2c30 - rustc_query_system::query::plumbing::force_query_with_job::h18c0a204e19f48b1 [INFO] [stderr] 29: 0x7fa8a4c81151 - rustc_query_system::query::plumbing::get_query_impl::h7b8f88aa3b9abc9b [INFO] [stderr] 30: 0x7fa8a4d0e7ba - ::optimized_mir::h18b9538f886a3b69 [INFO] [stderr] 31: 0x7fa8a5002cef - rustc_metadata::rmeta::encoder::EncodeContext::encode_crate_root::h6c8fc5ec2eb1aca3 [INFO] [stderr] 32: 0x7fa8a5a298e9 - rustc_metadata::rmeta::encoder::encode_metadata_impl::h1e5610af05591ef3 [INFO] [stderr] 33: 0x7fa8a5a39131 - rustc_data_structures::sync::join::he037a5382f7b2964 [INFO] [stderr] 34: 0x7fa8a5a2e27e - rustc_metadata::rmeta::decoder::cstore_impl::::encode_metadata::h80d669b724ffba8e [INFO] [stderr] 35: 0x7fa8a5c44db9 - rustc_middle::ty::context::TyCtxt::encode_metadata::h4f743868421bfc46 [INFO] [stderr] 36: 0x7fa8a53bdf0e - rustc_interface::passes::QueryContext::enter::hcd73d7d93779570e [INFO] [stderr] 37: 0x7fa8a53c6cc6 - rustc_interface::queries::Queries::ongoing_codegen::h74f3ebc4a4e04394 [INFO] [stderr] 38: 0x7fa8a5382466 - rustc_interface::queries::::enter::h022bc5d96316a497 [INFO] [stderr] 39: 0x7fa8a53813b4 - rustc_span::with_source_map::h71765ec8b8fd9951 [INFO] [stderr] 40: 0x7fa8a5383401 - rustc_interface::interface::create_compiler_and_run::hb7fa0da3b5c16631 [INFO] [stderr] 41: 0x7fa8a539cc48 - scoped_tls::ScopedKey::set::he6d088ee8831445a [INFO] [stderr] 42: 0x7fa8a539d164 - std::sys_common::backtrace::__rust_begin_short_backtrace::hab4e36ec9faa9780 [INFO] [stderr] 43: 0x7fa8a53a0a55 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h32361ced26b14e7a [INFO] [stderr] 44: 0x7fa8a3162fe3 - as core::ops::function::FnOnce>::call_once::h6bc35b6a67165211 [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/alloc/src/boxed.rs:1546:9 [INFO] [stderr] 45: 0x7fa8a3162fe3 - as core::ops::function::FnOnce>::call_once::h22a1030555589216 [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/alloc/src/boxed.rs:1546:9 [INFO] [stderr] 46: 0x7fa8a3162fe3 - std::sys::unix::thread::Thread::new::thread_start::h729365a01fb88184 [INFO] [stderr] at /rustc/45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4/library/std/src/sys/unix/thread.rs:71:17 [INFO] [stderr] 47: 0x7fa8a307f609 - start_thread [INFO] [stderr] 48: 0x7fa8a2f93293 - clone [INFO] [stderr] 49: 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 1.53.0-nightly (45d8b6e68 2021-04-02) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type lib [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 [optimized_mir] optimizing MIR for `untyped::::new::{closure#0}::{closure#0}` [INFO] [stderr] end of query stack [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `messagebus` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "2f20b0baab19e930ea5ac269fc496d6687d0a7af15796898a06b4ca7dbd3348f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f20b0baab19e930ea5ac269fc496d6687d0a7af15796898a06b4ca7dbd3348f", kill_on_drop: false }` [INFO] [stdout] 2f20b0baab19e930ea5ac269fc496d6687d0a7af15796898a06b4ca7dbd3348f