[INFO] fetching crate debug_tree 0.4.0...
[INFO] testing debug_tree-0.4.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate debug_tree 0.4.0 into /workspace/builds/worker-109/source
[INFO] validating manifest of crates.io crate debug_tree 0.4.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate debug_tree 0.4.0
[INFO] finished tweaking crates.io crate debug_tree 0.4.0
[INFO] tweaked toml for crates.io crate debug_tree 0.4.0 written to /workspace/builds/worker-109/source/Cargo.toml
[INFO] crate crates.io crate debug_tree 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b585dfc70233fe238d576e3f4684554f1360608bcb7b0b7cdf13802c86af1347
[INFO] running `Command { std: "docker" "start" "-a" "b585dfc70233fe238d576e3f4684554f1360608bcb7b0b7cdf13802c86af1347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b585dfc70233fe238d576e3f4684554f1360608bcb7b0b7cdf13802c86af1347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b585dfc70233fe238d576e3f4684554f1360608bcb7b0b7cdf13802c86af1347", kill_on_drop: false }`
[INFO] [stdout] b585dfc70233fe238d576e3f4684554f1360608bcb7b0b7cdf13802c86af1347
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9079b8df54d3a8c4f051c4cfb945ee9d2ee567483ba58df9cdf9232abad5acc9
[INFO] running `Command { std: "docker" "start" "-a" "9079b8df54d3a8c4f051c4cfb945ee9d2ee567483ba58df9cdf9232abad5acc9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling once_cell v1.3.1
[INFO] [stderr]    Compiling debug_tree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "9079b8df54d3a8c4f051c4cfb945ee9d2ee567483ba58df9cdf9232abad5acc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9079b8df54d3a8c4f051c4cfb945ee9d2ee567483ba58df9cdf9232abad5acc9", kill_on_drop: false }`
[INFO] [stdout] 9079b8df54d3a8c4f051c4cfb945ee9d2ee567483ba58df9cdf9232abad5acc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b0928f573cbcd7152c47ee867b7819f2c3ff76c704b25f978defcea03450b6a
[INFO] running `Command { std: "docker" "start" "-a" "2b0928f573cbcd7152c47ee867b7819f2c3ff76c704b25f978defcea03450b6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling futures-sink v0.3.4
[INFO] [stderr]    Compiling futures-core v0.3.4
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling futures-io v0.3.4
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling pin-project-lite v0.1.4
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.12
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling tokio v0.2.13
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling debug_tree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `max`, `min`
[INFO] [stdout]  --> src/test.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use std::cmp::{max, min};
[INFO] [stdout]   |                    ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.91s
[INFO] running `Command { std: "docker" "inspect" "2b0928f573cbcd7152c47ee867b7819f2c3ff76c704b25f978defcea03450b6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b0928f573cbcd7152c47ee867b7819f2c3ff76c704b25f978defcea03450b6a", kill_on_drop: false }`
[INFO] [stdout] 2b0928f573cbcd7152c47ee867b7819f2c3ff76c704b25f978defcea03450b6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8bee787bc488b6cbdf4b8ba4bf9bed1a1f791109fdff5b0ea8e27084279981d8
[INFO] running `Command { std: "docker" "start" "-a" "8bee787bc488b6cbdf4b8ba4bf9bed1a1f791109fdff5b0ea8e27084279981d8", 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] [stderr] warning: unused imports: `max`, `min`
[INFO] [stderr]  --> src/test.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |     use std::cmp::{max, min};
[INFO] [stderr]   |                    ^^^  ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `debug_tree` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/debug_tree-5d5809ccb5cda0aa)
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test default::test::leaf_with_value ... ok
[INFO] [stdout] test default::test::named_branch ... ok
[INFO] [stdout] test default::test::unnamed_branch ... ok
[INFO] [stdout] test test::test::async_barrier ... ok
[INFO] [stdout] test test::test::depth ... ok
[INFO] [stdout] test test::test::disabled_output ... ok
[INFO] [stdout] test test::test::enabled_output ... ok
[INFO] [stdout] test test::test::format_output ... ok
[INFO] [stdout] test test::test::format_output_dashed ... ok
[INFO] [stdout] test test::test::format_output_pipes ... ok
[INFO] [stdout] test test::test::format_output_rounded ... ok
[INFO] [stdout] test test::test::format_output_thick ... ok
[INFO] [stdout] test test::test::leaf_with_value ... ok
[INFO] [stdout] test test::test::indent ... ok
[INFO] [stdout] test test::test::macros ... ok
[INFO] [stdout] test test::test::macros2 ... ok
[INFO] [stdout] test test::test::macros_with_fn ... ok
[INFO] [stdout] test test::test::mid ... ok
[INFO] [stdout] test test::test::nested ... ok
[INFO] [stdout] test test::test::recursive ... ok
[INFO] [stdout] test test::test::simple ... ok
[INFO] [stdout] test test::test::test_branch ... ok
[INFO] [stdout] test test::test::test_branch2 ... ok
[INFO] [stdout] test test::test::tree_by_name ... ok
[INFO] [stdout] test test::test::tree_by_name_disabled ... ok
[INFO] [stdout] test test::test::defer_peek_write ... FAILED
[INFO] [stdout] test test::test::defer_peek_write_panic - should panic ... ok
[INFO] [stdout] test test::test::defer_write ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test::test::defer_peek_write stdout ----
[INFO] [stdout] thread 'test::test::defer_peek_write' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/test.rs:359:59
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x558527124dac - std::backtrace_rs::backtrace::libunwind::trace::h7630ba4cba718aa0
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x558527124dac - std::backtrace_rs::backtrace::trace_unsynchronized::he7498e79c157f5ac
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x558527124dac - std::sys_common::backtrace::_print_fmt::hdaebadaee17bca49
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x558527124dac - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h82b0e3aaf8a96140
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x55852714802c - core::fmt::write::h72801a82c94e6ff1
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/fmt/mod.rs:1149:17
[INFO] [stdout]    5:     0x558527120b65 - std::io::Write::write_fmt::h21d7683cabdb4c35
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/io/mod.rs:1697:15
[INFO] [stdout]    6:     0x558527126850 - std::sys_common::backtrace::_print::h1c9a1d19c48821c1
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x558527126850 - std::sys_common::backtrace::print::h7ce8802039fa9d0e
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x558527126850 - std::panicking::default_hook::{{closure}}::hb2a74a8c1499c326
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:211:50
[INFO] [stdout]    9:     0x558527126436 - std::panicking::default_hook::hf4f180b00076f2b2
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:225:9
[INFO] [stdout]   10:     0x558527126f04 - std::panicking::rust_panic_with_hook::he85ce8435493b711
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:606:17
[INFO] [stdout]   11:     0x5585271269e0 - std::panicking::begin_panic_handler::{{closure}}::h31e15f69e6235bd2
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:502:13
[INFO] [stdout]   12:     0x558527125264 - std::sys_common::backtrace::__rust_end_short_backtrace::hfce2fadb61aaa3ae
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:139:18
[INFO] [stdout]   13:     0x558527126949 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:498:5
[INFO] [stdout]   14:     0x558527075871 - core::panicking::panic_fmt::h7b8580d81fcbbacd
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/panicking.rs:107:14
[INFO] [stdout]   15:     0x558527075963 - core::result::unwrap_failed::h885d3f7beb571353
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/result.rs:1613:5
[INFO] [stdout]   16:     0x55852709ae0d - core::result::Result<T,E>::unwrap::h09ef0848ccb41791
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/result.rs:1295:23
[INFO] [stdout]   17:     0x55852708483f - debug_tree::test::test::defer_peek_write::hcbf91fdce22207a3
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:359:13
[INFO] [stdout]   18:     0x5585270846ea - debug_tree::test::test::defer_peek_write::{{closure}}::h3162bce90fe7aac6
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:354:5
[INFO] [stdout]   19:     0x5585270a10ae - core::ops::function::FnOnce::call_once::hb09591e0899af6c7
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x5585270fc063 - core::ops::function::FnOnce::call_once::h449577f1c5b077cb
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x5585270fc063 - test::__rust_begin_short_backtrace::h8c2a0a5090591869
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/test/src/lib.rs:585:5
[INFO] [stdout]   22:     0x5585270fabf7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hea00a22128a38543
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   23:     0x5585270fabf7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::he10b35c3c50d78a0
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   24:     0x5585270fabf7 - std::panicking::try::do_call::hc868e78bbc5af2ab
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:406:40
[INFO] [stdout]   25:     0x5585270fabf7 - std::panicking::try::he468aede74df1b04
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:370:19
[INFO] [stdout]   26:     0x5585270fabf7 - std::panic::catch_unwind::hce3c9152e1cf772d
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panic.rs:133:14
[INFO] [stdout]   27:     0x5585270fabf7 - test::run_test_in_process::h9c4ab8162080cf8c
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/test/src/lib.rs:608:18
[INFO] [stdout]   28:     0x5585270fabf7 - test::run_test::run_test_inner::{{closure}}::he9483433cef16afe
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/test/src/lib.rs:500:39
[INFO] [stdout]   29:     0x5585270c7f3e - test::run_test::run_test_inner::{{closure}}::h479f1f872a5501ea
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/test/src/lib.rs:527:37
[INFO] [stdout]   30:     0x5585270c7f3e - std::sys_common::backtrace::__rust_begin_short_backtrace::h0f1e9b1f279687bc
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stdout]   31:     0x5585270ccd68 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he5560613c5f5cb83
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/thread/mod.rs:484:17
[INFO] [stdout]   32:     0x5585270ccd68 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8190a68cb05ab92f
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   33:     0x5585270ccd68 - std::panicking::try::do_call::h6ae22f5ac22596e4
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:406:40
[INFO] [stdout]   34:     0x5585270ccd68 - std::panicking::try::h2381c25487d6a7c2
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:370:19
[INFO] [stdout]   35:     0x5585270ccd68 - std::panic::catch_unwind::hfe902f4d5c9d7b6d
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panic.rs:133:14
[INFO] [stdout]   36:     0x5585270ccd68 - std::thread::Builder::spawn_unchecked::{{closure}}::h547fad40771a584e
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/thread/mod.rs:483:30
[INFO] [stdout]   37:     0x5585270ccd68 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he8602a9971738410
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x55852712be33 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he162a5c338a10a39
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   39:     0x55852712be33 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb27497b21740dd97
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   40:     0x55852712be33 - std::sys::unix::thread::Thread::new::thread_start::he467e990e49c5136
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys/unix/thread.rs:106:17
[INFO] [stdout]   41:     0x7f3506275609 - start_thread
[INFO] [stdout]   42:     0x7f3506047293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- test::test::defer_write stdout ----
[INFO] [stdout] thread 'test::test::defer_write' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/test.rs:340:54
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x558527124dac - std::backtrace_rs::backtrace::libunwind::trace::h7630ba4cba718aa0
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x558527124dac - std::backtrace_rs::backtrace::trace_unsynchronized::he7498e79c157f5ac
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x558527124dac - std::sys_common::backtrace::_print_fmt::hdaebadaee17bca49
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x558527124dac - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h82b0e3aaf8a96140
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x55852714802c - core::fmt::write::h72801a82c94e6ff1
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/fmt/mod.rs:1149:17
[INFO] [stdout]    5:     0x558527120b65 - std::io::Write::write_fmt::h21d7683cabdb4c35
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/io/mod.rs:1697:15
[INFO] [stdout]    6:     0x558527126850 - std::sys_common::backtrace::_print::h1c9a1d19c48821c1
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x558527126850 - std::sys_common::backtrace::print::h7ce8802039fa9d0e
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x558527126850 - std::panicking::default_hook::{{closure}}::hb2a74a8c1499c326
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:211:50
[INFO] [stdout]    9:     0x558527126436 - std::panicking::default_hook::hf4f180b00076f2b2
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:225:9
[INFO] [stdout]   10:     0x558527126f04 - std::panicking::rust_panic_with_hook::he85ce8435493b711
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:606:17
[INFO] [stdout]   11:     0x5585271269e0 - std::panicking::begin_panic_handler::{{closure}}::h31e15f69e6235bd2
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:502:13
[INFO] [stdout]   12:     0x558527125264 - std::sys_common::backtrace::__rust_end_short_backtrace::hfce2fadb61aaa3ae
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:139:18
[INFO] [stdout]   13:     0x558527126949 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:498:5
[INFO] [stdout]   14:     0x558527075871 - core::panicking::panic_fmt::h7b8580d81fcbbacd
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/panicking.rs:107:14
[INFO] [stdout]   15:     0x558527075963 - core::result::unwrap_failed::h885d3f7beb571353
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/result.rs:1613:5
[INFO] [stdout]   16:     0x55852709ae0d - core::result::Result<T,E>::unwrap::h09ef0848ccb41791
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/result.rs:1295:23
[INFO] [stdout]   17:     0x558527083f4f - debug_tree::test::test::defer_write::hedea3f5ea85d84ff
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:340:13
[INFO] [stdout]   18:     0x558527083dfa - debug_tree::test::test::defer_write::{{closure}}::h5dbb1e2255b13516
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test.rs:335:5
[INFO] [stdout]   19:     0x5585270a0b8e - core::ops::function::FnOnce::call_once::h42e1f01ad8b9c71a
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x5585270fc063 - core::ops::function::FnOnce::call_once::h449577f1c5b077cb
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x5585270fc063 - test::__rust_begin_short_backtrace::h8c2a0a5090591869
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/test/src/lib.rs:585:5
[INFO] [stdout]   22:     0x5585270fabf7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hea00a22128a38543
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   23:     0x5585270fabf7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::he10b35c3c50d78a0
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   24:     0x5585270fabf7 - std::panicking::try::do_call::hc868e78bbc5af2ab
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:406:40
[INFO] [stdout]   25:     0x5585270fabf7 - std::panicking::try::he468aede74df1b04
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:370:19
[INFO] [stdout]   26:     0x5585270fabf7 - std::panic::catch_unwind::hce3c9152e1cf772d
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panic.rs:133:14
[INFO] [stdout]   27:     0x5585270fabf7 - test::run_test_in_process::h9c4ab8162080cf8c
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/test/src/lib.rs:608:18
[INFO] [stdout]   28:     0x5585270fabf7 - test::run_test::run_test_inner::{{closure}}::he9483433cef16afe
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/test/src/lib.rs:500:39
[INFO] [stdout]   29:     0x5585270c7f3e - test::run_test::run_test_inner::{{closure}}::h479f1f872a5501ea
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/test/src/lib.rs:527:37
[INFO] [stdout]   30:     0x5585270c7f3e - std::sys_common::backtrace::__rust_begin_short_backtrace::h0f1e9b1f279687bc
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stdout]   31:     0x5585270ccd68 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he5560613c5f5cb83
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/thread/mod.rs:484:17
[INFO] [stdout]   32:     0x5585270ccd68 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8190a68cb05ab92f
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   33:     0x5585270ccd68 - std::panicking::try::do_call::h6ae22f5ac22596e4
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:406:40
[INFO] [stdout]   34:     0x5585270ccd68 - std::panicking::try::h2381c25487d6a7c2
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:370:19
[INFO] [stdout]   35:     0x5585270ccd68 - std::panic::catch_unwind::hfe902f4d5c9d7b6d
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panic.rs:133:14
[INFO] [stdout]   36:     0x5585270ccd68 - std::thread::Builder::spawn_unchecked::{{closure}}::h547fad40771a584e
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/thread/mod.rs:483:30
[INFO] [stdout]   37:     0x5585270ccd68 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he8602a9971738410
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x55852712be33 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he162a5c338a10a39
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   39:     0x55852712be33 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb27497b21740dd97
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   40:     0x55852712be33 - std::sys::unix::thread::Thread::new::thread_start::he467e990e49c5136
[INFO] [stdout]                                at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys/unix/thread.rs:106:17
[INFO] [stdout]   41:     0x7f3506275609 - start_thread
[INFO] [stdout]   42:     0x7f3506047293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test::test::defer_peek_write
[INFO] [stdout]     test::test::defer_write
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 26 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `Command { std: "docker" "inspect" "8bee787bc488b6cbdf4b8ba4bf9bed1a1f791109fdff5b0ea8e27084279981d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bee787bc488b6cbdf4b8ba4bf9bed1a1f791109fdff5b0ea8e27084279981d8", kill_on_drop: false }`
[INFO] [stdout] 8bee787bc488b6cbdf4b8ba4bf9bed1a1f791109fdff5b0ea8e27084279981d8