[INFO] cloning repository https://github.com/ToolsForHumans/shyaml
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ToolsForHumans/shyaml" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FToolsForHumans%2Fshyaml", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FToolsForHumans%2Fshyaml'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cd573d8fe94f47c89132f42c224b73b4875bf2b
[INFO] testing ToolsForHumans/shyaml against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FToolsForHumans%2Fshyaml" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ToolsForHumans/shyaml on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ToolsForHumans/shyaml
[INFO] finished tweaking git repo https://github.com/ToolsForHumans/shyaml
[INFO] tweaked toml for git repo https://github.com/ToolsForHumans/shyaml written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/ToolsForHumans/shyaml already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23e34d3cae5d0b894e741355183575743ff785bb71713773f4c4b78f282b2640
[INFO] running `Command { std: "docker" "start" "-a" "23e34d3cae5d0b894e741355183575743ff785bb71713773f4c4b78f282b2640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23e34d3cae5d0b894e741355183575743ff785bb71713773f4c4b78f282b2640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23e34d3cae5d0b894e741355183575743ff785bb71713773f4c4b78f282b2640", kill_on_drop: false }`
[INFO] [stdout] 23e34d3cae5d0b894e741355183575743ff785bb71713773f4c4b78f282b2640
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d9465a66f1368a07febdaaf237958686be5c04b08901a5b83110a72771e03a4
[INFO] running `Command { std: "docker" "start" "-a" "9d9465a66f1368a07febdaaf237958686be5c04b08901a5b83110a72771e03a4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling dtoa v0.4.3
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling yaml-rust v0.4.2
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling quote v0.6.9
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling syn v0.15.15
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling serde_json v1.0.32
[INFO] [stderr]    Compiling serde_yaml v0.8.7
[INFO] [stderr]    Compiling shyaml v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.30s
[INFO] running `Command { std: "docker" "inspect" "9d9465a66f1368a07febdaaf237958686be5c04b08901a5b83110a72771e03a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d9465a66f1368a07febdaaf237958686be5c04b08901a5b83110a72771e03a4", kill_on_drop: false }`
[INFO] [stdout] 9d9465a66f1368a07febdaaf237958686be5c04b08901a5b83110a72771e03a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 508cd6734d00304854070db08a4521abcdd9fc8c26671833469ef7b913fcac07
[INFO] running `Command { std: "docker" "start" "-a" "508cd6734d00304854070db08a4521abcdd9fc8c26671833469ef7b913fcac07", kill_on_drop: false }`
[INFO] [stderr]    Compiling shyaml v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "508cd6734d00304854070db08a4521abcdd9fc8c26671833469ef7b913fcac07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "508cd6734d00304854070db08a4521abcdd9fc8c26671833469ef7b913fcac07", kill_on_drop: false }`
[INFO] [stdout] 508cd6734d00304854070db08a4521abcdd9fc8c26671833469ef7b913fcac07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e64bd8fed8de4b90b8e6ef164f0280f3ede1156dde5648e76c2eeba16d972163
[INFO] running `Command { std: "docker" "start" "-a" "e64bd8fed8de4b90b8e6ef164f0280f3ede1156dde5648e76c2eeba16d972163", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/shyaml-603268b492ef45c9)
[INFO] [stdout] test t_node_to_writer_pretty ... FAILED
[INFO] [stderr] error: test failed, to rerun pass '--bin shyaml'
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- t_node_to_writer_pretty stdout ----
[INFO] [stdout] thread 't_node_to_writer_pretty' panicked at 'attempted to leave type `linked_hash_map::Node<value::Value, value::Value>` uninitialized, which is invalid', /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/mem/mod.rs:660:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55b57762ec70 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x55b57762ec70 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55b57762ec70 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55b57762ec70 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x55b577652c8c - core::fmt::write::h306731c068f7162c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x55b57762bb95 - std::io::Write::write_fmt::h87f19b0a2cd190bc
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stdout]    6:     0x55b577630ddb - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x55b577630ddb - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x55b577630ddb - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x55b5776308ec - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x55b5776314a4 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x55b577630f57 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:517:13
[INFO] [stdout]   12:     0x55b57762f16c - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x55b577630ee9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x55b577562651 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x55b57756259d - core::panicking::panic::h1a48d878ff3dcd40
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:50:5
[INFO] [stdout]   16:     0x55b5775c4daa - core::mem::uninitialized::h742587714dd71c59
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/mem/mod.rs:660:9
[INFO] [stdout]   17:     0x55b5775c4daa - linked_hash_map::LinkedHashMap<K,V,S>::ensure_guard_node::hdc3d4ff486ca1d3a
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked-hash-map-0.5.1/src/lib.rs:174:52
[INFO] [stdout]   18:     0x55b5775c4fdc - linked_hash_map::LinkedHashMap<K,V,S>::insert::h86b5867f7bf4734b
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked-hash-map-0.5.1/src/lib.rs:304:9
[INFO] [stdout]   19:     0x55b577568f5d - serde_yaml::mapping::Mapping::insert::h2dd6955b8a283c5b
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.7/src/mapping.rs:63:9
[INFO] [stdout]   20:     0x55b577568577 - <serde_yaml::value::de::<impl serde::de::Deserialize for serde_yaml::value::Value>::deserialize::ValueVisitor as serde::de::Visitor>::visit_map::hd1f185e003f81c34
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.7/src/value/de.rs:108:21
[INFO] [stdout]   21:     0x55b577563266 - serde_yaml::de::Deserializer::visit_mapping::{{closure}}::h670a5da962e68c0e
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.7/src/de.rs:186:25
[INFO] [stdout]   22:     0x55b577563a5e - serde_yaml::de::Deserializer::recursion_check::h699dc19ea5cdf312
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.7/src/de.rs:250:22
[INFO] [stdout]   23:     0x55b577562fab - serde_yaml::de::Deserializer::visit_mapping::h4a2213726f8b2685
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.7/src/de.rs:180:28
[INFO] [stdout]   24:     0x55b577566ab3 - <&mut serde_yaml::de::Deserializer as serde::de::Deserializer>::deserialize_any::hd7ea3c14c60313ba
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.7/src/de.rs:659:36
[INFO] [stdout]   25:     0x55b57756a396 - serde_yaml::value::de::<impl serde::de::Deserialize for serde_yaml::value::Value>::deserialize::h8cb75a4fd4446749
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.7/src/value/de.rs:115:9
[INFO] [stdout]   26:     0x55b577565a23 - serde_yaml::de::from_str::hc3eda151dd17be18
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.7/src/de.rs:1022:17
[INFO] [stdout]   27:     0x55b57756e2b4 - shyaml::_test_yaml::h4a988743dd8e34f7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:390:50
[INFO] [stdout]   28:     0x55b57756eb12 - shyaml::t_node_to_writer_pretty::hd514c46a9e4c9630
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:421:5
[INFO] [stdout]   29:     0x55b57756eaea - shyaml::t_node_to_writer_pretty::{{closure}}::h7620c74edaa75823
[INFO] [stdout]                                at /opt/rustwide/workdir/src/main.rs:420:1
[INFO] [stdout]   30:     0x55b577569c1e - core::ops::function::FnOnce::call_once::hb0484100880bdb87
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   31:     0x55b57759c933 - core::ops::function::FnOnce::call_once::h152e7e439ff59e19
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   32:     0x55b57759c933 - test::__rust_begin_short_backtrace::h0908f3b1fdbb72ab
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:577:5
[INFO] [stdout]   33:     0x55b57759b3f0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6d2a51e5587546c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   34:     0x55b57759b3f0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8af660f3a89ef593
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   35:     0x55b57759b3f0 - std::panicking::try::do_call::hd36aef60f84b6d36
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x55b57759b3f0 - std::panicking::try::h9932b4480e69817c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x55b57759b3f0 - std::panic::catch_unwind::h6aa177099cfff5f8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   38:     0x55b57759b3f0 - test::run_test_in_process::h5884d6f2d99e20c3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:600:18
[INFO] [stdout]   39:     0x55b57759b3f0 - test::run_test::run_test_inner::{{closure}}::h6fdc58c6d5f5b6e3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:492:39
[INFO] [stdout]   40:     0x55b577574aa2 - test::run_test::run_test_inner::{{closure}}::h408365d67a78ade8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:519:37
[INFO] [stdout]   41:     0x55b577574aa2 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb560b77c4f701523
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   42:     0x55b577578658 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf2e7831dad93c597
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   43:     0x55b577578658 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd2e08783d8be4d02
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   44:     0x55b577578658 - std::panicking::try::do_call::h062597b7acfd6b82
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   45:     0x55b577578658 - std::panicking::try::h0d7b79db04c14552
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   46:     0x55b577578658 - std::panic::catch_unwind::hb01a0b5e7c8cd43b
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   47:     0x55b577578658 - std::thread::Builder::spawn_unchecked::{{closure}}::h5bde48cc887e0d1e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   48:     0x55b577578658 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h745ea30807a29e55
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   49:     0x55b577635f67 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ece6cfefaff1005
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   50:     0x55b577635f67 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb8b48e55c21f193e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   51:     0x55b577635f67 - std::sys::unix::thread::Thread::new::thread_start::h8c7c4450dba62914
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   52:     0x7f47f9d95609 - start_thread
[INFO] [stdout]   53:     0x7f47f9b67293 - clone
[INFO] [stdout]   54:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     t_node_to_writer_pretty
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e64bd8fed8de4b90b8e6ef164f0280f3ede1156dde5648e76c2eeba16d972163", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e64bd8fed8de4b90b8e6ef164f0280f3ede1156dde5648e76c2eeba16d972163", kill_on_drop: false }`
[INFO] [stdout] e64bd8fed8de4b90b8e6ef164f0280f3ede1156dde5648e76c2eeba16d972163
