[INFO] fetching crate carboncopy-tokio 0.1.4...
[INFO] testing carboncopy-tokio-0.1.4 against try#d5830e3d3b571fe52cdf4b7b34be99be74dc65ea+target=i686-unknown-linux-musl for musl_1_2_upgrade_i686_unknown_linux_musl
[INFO] extracting crate carboncopy-tokio 0.1.4 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate carboncopy-tokio 0.1.4 on toolchain d5830e3d3b571fe52cdf4b7b34be99be74dc65ea
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d5830e3d3b571fe52cdf4b7b34be99be74dc65ea" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate carboncopy-tokio 0.1.4
[INFO] finished tweaking crates.io crate carboncopy-tokio 0.1.4
[INFO] tweaked toml for crates.io crate carboncopy-tokio 0.1.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+d5830e3d3b571fe52cdf4b7b34be99be74dc65ea" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d5830e3d3b571fe52cdf4b7b34be99be74dc65ea" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded carboncopy v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+d5830e3d3b571fe52cdf4b7b34be99be74dc65ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c10873e17850d893fc0b5471cde9eebb2f1cae6a8880748499ca5e2bc53d0d7c
[INFO] running `Command { std: "docker" "start" "-a" "c10873e17850d893fc0b5471cde9eebb2f1cae6a8880748499ca5e2bc53d0d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c10873e17850d893fc0b5471cde9eebb2f1cae6a8880748499ca5e2bc53d0d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c10873e17850d893fc0b5471cde9eebb2f1cae6a8880748499ca5e2bc53d0d7c", kill_on_drop: false }`
[INFO] [stdout] c10873e17850d893fc0b5471cde9eebb2f1cae6a8880748499ca5e2bc53d0d7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+d5830e3d3b571fe52cdf4b7b34be99be74dc65ea" "build" "--frozen" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] b91d885bed6cb08d61a9566aecf4fc9885714a4839e071b93a4f9107a6596c54
[INFO] running `Command { std: "docker" "start" "-a" "b91d885bed6cb08d61a9566aecf4fc9885714a4839e071b93a4f9107a6596c54", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling tokio v1.24.2
[INFO] [stderr]    Compiling iana-time-zone v0.1.53
[INFO] [stderr]    Compiling data-encoding v2.3.3
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling futures-executor v0.3.25
[INFO] [stderr]    Compiling futures v0.3.25
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling chrono v0.4.23
[INFO] [stderr]    Compiling carboncopy v0.3.0
[INFO] [stderr]    Compiling carboncopy-tokio v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.83s
[INFO] running `Command { std: "docker" "inspect" "b91d885bed6cb08d61a9566aecf4fc9885714a4839e071b93a4f9107a6596c54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b91d885bed6cb08d61a9566aecf4fc9885714a4839e071b93a4f9107a6596c54", kill_on_drop: false }`
[INFO] [stdout] b91d885bed6cb08d61a9566aecf4fc9885714a4839e071b93a4f9107a6596c54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+d5830e3d3b571fe52cdf4b7b34be99be74dc65ea" "test" "--frozen" "--no-run" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 54b9f6b60e6e4a24ef1fcd2be7e425805a763bb3384e409aaa1cfead4ecd8282
[INFO] running `Command { std: "docker" "start" "-a" "54b9f6b60e6e4a24ef1fcd2be7e425805a763bb3384e409aaa1cfead4ecd8282", kill_on_drop: false }`
[INFO] [stderr]    Compiling carboncopy-tokio v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "54b9f6b60e6e4a24ef1fcd2be7e425805a763bb3384e409aaa1cfead4ecd8282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54b9f6b60e6e4a24ef1fcd2be7e425805a763bb3384e409aaa1cfead4ecd8282", kill_on_drop: false }`
[INFO] [stdout] 54b9f6b60e6e4a24ef1fcd2be7e425805a763bb3384e409aaa1cfead4ecd8282
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+d5830e3d3b571fe52cdf4b7b34be99be74dc65ea" "test" "--frozen" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 52007e6f4b1b1dd896f8d22ebb125fe1374fdc8640675348c7563ccbc4959084
[INFO] running `Command { std: "docker" "start" "-a" "52007e6f4b1b1dd896f8d22ebb125fe1374fdc8640675348c7563ccbc4959084", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/carboncopy_tokio-4e952247db34b49b)
[INFO] [stdout] test tests::overflow_threshold ... ok
[INFO] [stdout] test tests::default_options_dont_panic ... ok
[INFO] [stdout] test tests::overflow_flush ... ok
[INFO] [stdout] test tests::no_buffer ... ok
[INFO] [stdout] test tests::flush_err ... FAILED
[INFO] [stdout] test tests::timeout_flush ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::flush_err stdout ----
[INFO] [stdout] thread 'tests::flush_err' panicked at 'assertion failed: mem_sink.last_flush_err().is_some()', src/lib.rs:478:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:  0x81975f1 - std::backtrace_rs::backtrace::libunwind::trace::hd97f390175e4d375
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:  0x81975f1 - std::backtrace_rs::backtrace::trace_unsynchronized::h9e4d1346fdbe15c5
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:  0x81975f1 - std::sys_common::backtrace::_print_fmt::h2d3f477d48c20ea8
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:  0x81975f1 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2e4fc3d0b8c80e4b
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:  0x81d415c - core::fmt::write::h4ab0d13aa1c0ffdf
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/core/src/fmt/mod.rs:1213:17
[INFO] [stdout]    5:  0x8194acb - std::io::Write::write_fmt::hc0e5cbe2e336a35c
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/io/mod.rs:1682:15
[INFO] [stdout]    6:  0x81973f6 - std::sys_common::backtrace::_print::he83a0656b60804f4
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:  0x81973f6 - std::sys_common::backtrace::print::he5889ca5768e8d1c
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:  0x8198fd5 - std::panicking::default_hook::{{closure}}::ha81712de98b54398
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/panicking.rs:267:22
[INFO] [stdout]    9:  0x8198cd5 - std::panicking::default_hook::he5857a041ac6b670
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/panicking.rs:283:9
[INFO] [stdout]   10:  0x8176aec - core::ops::function::Fn::call::h47ada2d4dc8687c6
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/core/src/ops/function.rs:79:5
[INFO] [stdout]   11:  0x80dfac9 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h32210aeb8cc578f9
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/alloc/src/boxed.rs:2002:9
[INFO] [stdout]   12:  0x80dfac9 - test::test_main::{{closure}}::h8466694f5bd858c9
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/test/src/lib.rs:135:21
[INFO] [stdout]   13:  0x8199711 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h5bc67f704e9605b2
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/alloc/src/boxed.rs:2002:9
[INFO] [stdout]   14:  0x8199711 - std::panicking::rust_panic_with_hook::h764b8fe75e8ba68c
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/panicking.rs:692:13
[INFO] [stdout]   15:  0x8199481 - std::panicking::begin_panic_handler::{{closure}}::h04438436866ada8a
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/panicking.rs:577:13
[INFO] [stdout]   16:  0x8197a6a - std::sys_common::backtrace::__rust_end_short_backtrace::hb43e7524728cf453
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/sys_common/backtrace.rs:137:18
[INFO] [stdout]   17:  0x81991a3 - rust_begin_unwind
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/panicking.rs:575:5
[INFO] [stdout]   18:  0x804c670 - core::panicking::panic_fmt::ha026792c47a5830b
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/core/src/panicking.rs:64:14
[INFO] [stdout]   19:  0x804c723 - core::panicking::panic::h5b684f650447d6bb
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/core/src/panicking.rs:114:5
[INFO] [stdout]   20:  0x809fbc1 - carboncopy_tokio::tests::flush_err::heab426cce45b7dd1
[INFO] [stdout]                        at /opt/rustwide/workdir/src/lib.rs:478:9
[INFO] [stdout]   21:  0x809f617 - carboncopy_tokio::tests::flush_err::{{closure}}::h2243c72e070af7bc
[INFO] [stdout]                        at /opt/rustwide/workdir/src/lib.rs:433:20
[INFO] [stdout]   22:  0x807824d - core::ops::function::FnOnce::call_once::h8831703c06f0c2f7
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:  0x80e455e - core::ops::function::FnOnce::call_once::h3969063a3b87f847
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:  0x80e455e - test::__rust_begin_short_backtrace::h4b8703a824c9f4d1
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/test/src/lib.rs:656:18
[INFO] [stdout]   25:  0x80b82b0 - test::run_test::{{closure}}::he242fd19981fa5cd
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/test/src/lib.rs:647:30
[INFO] [stdout]   26:  0x80b82b0 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h706575526aa71778
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:  0x80e3697 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hafe155c229ed3840
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/alloc/src/boxed.rs:1988:9
[INFO] [stdout]   28:  0x80e3697 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hccf8545804efeabc
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   29:  0x80e3697 - std::panicking::try::do_call::h14c088d0ccd71a85
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/panicking.rs:483:40
[INFO] [stdout]   30:  0x80e3697 - std::panicking::try::h5bee4f0fb041d03c
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/panicking.rs:447:19
[INFO] [stdout]   31:  0x80e3697 - std::panic::catch_unwind::hc4a3b19ca4039446
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/panic.rs:140:14
[INFO] [stdout]   32:  0x80e3697 - test::run_test_in_process::h01c4cf5424b4aa16
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/test/src/lib.rs:679:27
[INFO] [stdout]   33:  0x80e3697 - test::run_test::run_test_inner::{{closure}}::h2b730e73e85dc07e
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/test/src/lib.rs:573:39
[INFO] [stdout]   34:  0x80b29da - test::run_test::run_test_inner::{{closure}}::h1e6de70351d982ef
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/test/src/lib.rs:600:37
[INFO] [stdout]   35:  0x80b29da - std::sys_common::backtrace::__rust_begin_short_backtrace::h11ed077933f178e3
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/sys_common/backtrace.rs:121:18
[INFO] [stdout]   36:  0x80b838b - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha60d98b360ed53c8
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/thread/mod.rs:558:17
[INFO] [stdout]   37:  0x80b838b - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5e10cae340573322
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   38:  0x80b838b - std::panicking::try::do_call::h47dd5d7a0750d636
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/panicking.rs:483:40
[INFO] [stdout]   39:  0x80b838b - std::panicking::try::hcaac73f0ac4cf9b2
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/panicking.rs:447:19
[INFO] [stdout]   40:  0x80b838b - std::panic::catch_unwind::h9fe9d263cb0da10f
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/panic.rs:140:14
[INFO] [stdout]   41:  0x80b838b - std::thread::Builder::spawn_unchecked_::{{closure}}::h2c0f796f4234fbbe
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   42:  0x80b838b - core::ops::function::FnOnce::call_once{{vtable.shim}}::hd8a5d36b54e84e44
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:  0x819d73d - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbac986b07f477b52
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/alloc/src/boxed.rs:1988:9
[INFO] [stdout]   44:  0x819d73d - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5768035ad531add2
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/alloc/src/boxed.rs:1988:9
[INFO] [stdout]   45:  0x819d73d - std::sys::unix::thread::Thread::new::thread_start::h48056988cddec68b
[INFO] [stdout]                        at /rustc/d5830e3d3b571fe52cdf4b7b34be99be74dc65ea/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::flush_err
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "52007e6f4b1b1dd896f8d22ebb125fe1374fdc8640675348c7563ccbc4959084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52007e6f4b1b1dd896f8d22ebb125fe1374fdc8640675348c7563ccbc4959084", kill_on_drop: false }`
[INFO] [stdout] 52007e6f4b1b1dd896f8d22ebb125fe1374fdc8640675348c7563ccbc4959084