[INFO] fetching crate serial_enumerate 0.1.0...
[INFO] testing serial_enumerate-0.1.0 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate serial_enumerate 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate serial_enumerate 0.1.0 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serial_enumerate 0.1.0
[INFO] finished tweaking crates.io crate serial_enumerate 0.1.0
[INFO] tweaked toml for crates.io crate serial_enumerate 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages to latest compatible versions
[INFO] [stderr]       Adding backtrace v0.2.3 (latest: v0.3.71)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding error-chain v0.5.0 (latest: v0.12.4)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] [stderr]       Adding winreg v0.4.0 (latest: v0.52.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded error-chain v0.5.0
[INFO] [stderr]   Downloaded ktmw32-sys v0.1.1
[INFO] [stderr]   Downloaded backtrace v0.2.3
[INFO] [stderr]   Downloaded backtrace-sys v0.1.37
[INFO] [stderr]   Downloaded winreg v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 397350bcf994f3f4125f8c2a11d07c8ab1b468eb84a1f7cbb8eb3e208c8d4866
[INFO] running `Command { std: "docker" "start" "-a" "397350bcf994f3f4125f8c2a11d07c8ab1b468eb84a1f7cbb8eb3e208c8d4866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "397350bcf994f3f4125f8c2a11d07c8ab1b468eb84a1f7cbb8eb3e208c8d4866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "397350bcf994f3f4125f8c2a11d07c8ab1b468eb84a1f7cbb8eb3e208c8d4866", kill_on_drop: false }`
[INFO] [stdout] 397350bcf994f3f4125f8c2a11d07c8ab1b468eb84a1f7cbb8eb3e208c8d4866
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f34bb8bbea70652d9114fb2103030b9bdceeb0a65e9c4f98e9ada098094514c
[INFO] running `Command { std: "docker" "start" "-a" "7f34bb8bbea70652d9114fb2103030b9bdceeb0a65e9c4f98e9ada098094514c", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling error-chain v0.5.0
[INFO] [stderr]    Compiling serial_enumerate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "7f34bb8bbea70652d9114fb2103030b9bdceeb0a65e9c4f98e9ada098094514c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f34bb8bbea70652d9114fb2103030b9bdceeb0a65e9c4f98e9ada098094514c", kill_on_drop: false }`
[INFO] [stdout] 7f34bb8bbea70652d9114fb2103030b9bdceeb0a65e9c4f98e9ada098094514c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5dc9dd77c57b643210580ddf08e5bff755c97ade065f8ea0422ce2578ec94f4
[INFO] running `Command { std: "docker" "start" "-a" "f5dc9dd77c57b643210580ddf08e5bff755c97ade065f8ea0422ce2578ec94f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serial_enumerate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "f5dc9dd77c57b643210580ddf08e5bff755c97ade065f8ea0422ce2578ec94f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5dc9dd77c57b643210580ddf08e5bff755c97ade065f8ea0422ce2578ec94f4", kill_on_drop: false }`
[INFO] [stdout] f5dc9dd77c57b643210580ddf08e5bff755c97ade065f8ea0422ce2578ec94f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4f4d55c5a110ba955a05a7fa6deda260de382c9aca92d6e50985e821a653f11c
[INFO] running `Command { std: "docker" "start" "-a" "4f4d55c5a110ba955a05a7fa6deda260de382c9aca92d6e50985e821a653f11c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serial_enumerate-bedaab4254597e5e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serial_enumerate
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 4) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 4) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/lib.rs:5:58:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Error(Msg("/dev/serial not found"), (Some(Os { code: 2, kind: NotFound, message: "No such file or directory" }), Some(stack backtrace:
[INFO] [stdout]    0:     0x5596bada10d0 - backtrace::backtrace::libunwind::trace::h7478f4353d2bfdd5
[INFO] [stdout]                         at src/backtrace/libunwind.rs:54
[INFO] [stdout]                          - backtrace::backtrace::trace::hc3b802a3145fe7fd
[INFO] [stdout]                         at src/backtrace/mod.rs:70
[INFO] [stdout]    1:     0x5596bad9bd7d - backtrace::capture::Backtrace::new::h9a2d3ee642736a01
[INFO] [stdout]                         at /opt/rustwide/target/debug/build/backtrace-29632d2da38f3dcf/out/capture.rs:79
[INFO] [stdout]    2:     0x5596bad96bc7 - error_chain::make_backtrace::ha3491fce52260b84
[INFO] [stdout]                         at src/lib.rs:684
[INFO] [stdout]    3:     0x5596bad95ca6 - <core::result::Result<T,E> as serial_enumerate::errors::ChainErr<T>>::chain_err::{{closure}}::{{closure}}::hac33c9583a8c1561
[INFO] [stdout]                         at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.5.0/src/lib.rs:504
[INFO] [stdout]    4:     0x5596bad92ae9 - core::option::Option<T>::unwrap_or_else::he5c82457b1d33940
[INFO] [stdout]                         at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/option.rs:977
[INFO] [stdout]    5:     0x5596bad95816 - <core::result::Result<T,E> as serial_enumerate::errors::ChainErr<T>>::chain_err::{{closure}}::h571fc44ad36bdaad
[INFO] [stdout]                         at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.5.0/src/lib.rs:503
[INFO] [stdout]    6:     0x5596bad92c36 - core::result::Result<T,E>::map_err::hce66661858b17528
[INFO] [stdout]                         at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:829
[INFO] [stdout]    7:     0x5596bad95391 - <core::result::Result<T,E> as serial_enumerate::errors::ChainErr<T>>::chain_err::h0c5d83dac2feeff5
[INFO] [stdout]                         at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.5.0/src/lib.rs:500
[INFO] [stdout]    8:     0x5596bad94a48 - serial_enumerate::enumerate_serial_ports::h95f125b64dcea356
[INFO] [stdout]                         at src/lib.rs:46
[INFO] [stdout]    9:     0x5596bad91271 - rust_out::main::_doctest_main_src_lib_rs_4_0::h5ce98ed26d1725d0
[INFO] [stdout]   10:     0x5596bad91255 - rust_out::main::h696a342f0ae7cd72
[INFO] [stdout]   11:     0x5596bad90c22 - core::ops::function::FnOnce::call_once::hacff659aa20c7b40
[INFO] [stdout]   12:     0x5596bad909c5 - std::sys_common::backtrace::__rust_begin_short_backtrace::hcc6b8bea3112e884
[INFO] [stdout]   13:     0x5596bad90a18 - std::rt::lang_start::{{closure}}::h4db0ca8543e29a47
[INFO] [stdout]   14:     0x5596badde08c - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h239f0051f1e18680
[INFO] [stdout]                         at library/core/src/ops/function.rs:284
[INFO] [stdout]                          - std::panicking::try::do_call::hf7072797cbfea7fa
[INFO] [stdout]                         at library/std/src/panicking.rs:559
[INFO] [stdout]                          - std::panicking::try::h3a37e38691a5244b
[INFO] [stdout]                         at library/std/src/panicking.rs:523
[INFO] [stdout]                          - std::panic::catch_unwind::hc7cc1460e4236209
[INFO] [stdout]                         at library/std/src/panic.rs:149
[INFO] [stdout]                          - std::rt::lang_start_internal::{{closure}}::hce632608b277cffc
[INFO] [stdout]                         at library/std/src/rt.rs:141
[INFO] [stdout]                          - std::panicking::try::do_call::hafc0f13e6abd9d79
[INFO] [stdout]                         at library/std/src/panicking.rs:559
[INFO] [stdout]                          - std::panicking::try::h67b8f1800ef15799
[INFO] [stdout]                         at library/std/src/panicking.rs:523
[INFO] [stdout]                          - std::panic::catch_unwind::he5b260dc522c68be
[INFO] [stdout]                         at library/std/src/panic.rs:149
[INFO] [stdout]                          - std::rt::lang_start_internal::hf119eb75d1ffe221
[INFO] [stdout]                         at library/std/src/rt.rs:141
[INFO] [stdout]   15:     0x5596bad909f6 - std::rt::lang_start::ha9360cc92730957e
[INFO] [stdout]   16:     0x5596bad91524 - main
[INFO] [stdout]   17:     0x7fbf20a55d8f - <unknown>
[INFO] [stdout]   18:     0x7fbf20a55e3f - __libc_start_main
[INFO] [stdout]   19:     0x5596bad90794 - _start
[INFO] [stdout]   20:                0x0 - <unknown>)))
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5596bade2d15 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x5596bade2d15 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5596bade2d15 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x5596bade2d15 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x5596bae006db - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x5596bae006db - core::fmt::write::h8bcd80919a02be29
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x5596bade0daf - std::io::Write::write_fmt::hed769ca6c29434ec
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x5596bade2aee - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x5596bade2aee - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x5596bade3e59 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stdout]   10:     0x5596bade3b9d - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x5596bade42f3 - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x5596bade41d4 - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x5596bade31d9 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x5596bade3f07 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x5596bad900e3 - core::panicking::panic_fmt::hec11a924b87ce965
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x5596bad904f6 - core::result::unwrap_failed::h382691b96ca8c13a
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x5596bad912de - rust_out::main::_doctest_main_src_lib_rs_4_0::h5ce98ed26d1725d0
[INFO] [stdout]   18:     0x5596bad91256 - rust_out::main::h696a342f0ae7cd72
[INFO] [stdout]   19:     0x5596bad90c23 - core::ops::function::FnOnce::call_once::hacff659aa20c7b40
[INFO] [stdout]   20:     0x5596bad909c6 - std::sys_common::backtrace::__rust_begin_short_backtrace::hcc6b8bea3112e884
[INFO] [stdout]   21:     0x5596bad90a19 - std::rt::lang_start::{{closure}}::h4db0ca8543e29a47
[INFO] [stdout]   22:     0x5596badde08d - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h239f0051f1e18680
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   23:     0x5596badde08d - std::panicking::try::do_call::hf7072797cbfea7fa
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   24:     0x5596badde08d - std::panicking::try::h3a37e38691a5244b
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   25:     0x5596badde08d - std::panic::catch_unwind::hc7cc1460e4236209
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   26:     0x5596badde08d - std::rt::lang_start_internal::{{closure}}::hce632608b277cffc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:48
[INFO] [stdout]   27:     0x5596badde08d - std::panicking::try::do_call::hafc0f13e6abd9d79
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   28:     0x5596badde08d - std::panicking::try::h67b8f1800ef15799
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   29:     0x5596badde08d - std::panic::catch_unwind::he5b260dc522c68be
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   30:     0x5596badde08d - std::rt::lang_start_internal::hf119eb75d1ffe221
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:20
[INFO] [stdout]   31:     0x5596bad909f7 - std::rt::lang_start::ha9360cc92730957e
[INFO] [stdout]   32:     0x5596bad91525 - main
[INFO] [stdout]   33:     0x7fbf20a55d90 - <unknown>
[INFO] [stdout]   34:     0x7fbf20a55e40 - __libc_start_main
[INFO] [stdout]   35:     0x5596bad90795 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 4)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "4f4d55c5a110ba955a05a7fa6deda260de382c9aca92d6e50985e821a653f11c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f4d55c5a110ba955a05a7fa6deda260de382c9aca92d6e50985e821a653f11c", kill_on_drop: false }`
[INFO] [stdout] 4f4d55c5a110ba955a05a7fa6deda260de382c9aca92d6e50985e821a653f11c
[INFO] testing serial_enumerate-0.1.0 against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] extracting crate serial_enumerate 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate serial_enumerate 0.1.0 on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serial_enumerate 0.1.0
[INFO] finished tweaking crates.io crate serial_enumerate 0.1.0
[INFO] tweaked toml for crates.io crate serial_enumerate 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages to latest compatible versions
[INFO] [stderr]       Adding backtrace v0.2.3 (latest: v0.3.71)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding error-chain v0.5.0 (latest: v0.12.4)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] [stderr]       Adding winreg v0.4.0 (latest: v0.52.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19966c969c7dee5979b61af8cf21f4fc29d01a34a95c6d87054645c80189f13c
[INFO] running `Command { std: "docker" "start" "-a" "19966c969c7dee5979b61af8cf21f4fc29d01a34a95c6d87054645c80189f13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19966c969c7dee5979b61af8cf21f4fc29d01a34a95c6d87054645c80189f13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19966c969c7dee5979b61af8cf21f4fc29d01a34a95c6d87054645c80189f13c", kill_on_drop: false }`
[INFO] [stdout] 19966c969c7dee5979b61af8cf21f4fc29d01a34a95c6d87054645c80189f13c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a2d55cb3789fe9aba45bb12677449ce2ce6fba9d42a6a29812fb64504aa9de0
[INFO] running `Command { std: "docker" "start" "-a" "0a2d55cb3789fe9aba45bb12677449ce2ce6fba9d42a6a29812fb64504aa9de0", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling error-chain v0.5.0
[INFO] [stderr]    Compiling serial_enumerate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "0a2d55cb3789fe9aba45bb12677449ce2ce6fba9d42a6a29812fb64504aa9de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a2d55cb3789fe9aba45bb12677449ce2ce6fba9d42a6a29812fb64504aa9de0", kill_on_drop: false }`
[INFO] [stdout] 0a2d55cb3789fe9aba45bb12677449ce2ce6fba9d42a6a29812fb64504aa9de0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d39fc95834e69f1d44723b4eae276cce4a29aafe6b55cd62ceee00b7e226842e
[INFO] running `Command { std: "docker" "start" "-a" "d39fc95834e69f1d44723b4eae276cce4a29aafe6b55cd62ceee00b7e226842e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serial_enumerate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "d39fc95834e69f1d44723b4eae276cce4a29aafe6b55cd62ceee00b7e226842e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d39fc95834e69f1d44723b4eae276cce4a29aafe6b55cd62ceee00b7e226842e", kill_on_drop: false }`
[INFO] [stdout] d39fc95834e69f1d44723b4eae276cce4a29aafe6b55cd62ceee00b7e226842e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d32ca9af6538c48c34f234d0e8c3e5b329689d298a9f130d11352693d282ae3c
[INFO] running `Command { std: "docker" "start" "-a" "d32ca9af6538c48c34f234d0e8c3e5b329689d298a9f130d11352693d282ae3c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/serial_enumerate-bedaab4254597e5e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serial_enumerate
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 4) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 4) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/lib.rs:5:58:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Error(Msg("/dev/serial not found"), (Some(Os { code: 2, kind: NotFound, message: "No such file or directory" }), Some(stack backtrace:
[INFO] [stdout]    0:     0x55a0206b9f50 - backtrace::backtrace::libunwind::trace::h7f74265333f88633
[INFO] [stdout]                         at src/backtrace/libunwind.rs:54
[INFO] [stdout]                          - backtrace::backtrace::trace::hca2d2ac8e9a40576
[INFO] [stdout]                         at src/backtrace/mod.rs:70
[INFO] [stdout]    1:     0x55a0206b419d - backtrace::capture::Backtrace::new::h266b7223984d6b7a
[INFO] [stdout]                         at /opt/rustwide/target/debug/build/backtrace-29632d2da38f3dcf/out/capture.rs:79
[INFO] [stdout]    2:     0x55a0206afba7 - error_chain::make_backtrace::h0000e1879c1c3a62
[INFO] [stdout]                         at src/lib.rs:684
[INFO] [stdout]    3:     0x55a0206aec76 - <core::result::Result<T,E> as serial_enumerate::errors::ChainErr<T>>::chain_err::{{closure}}::{{closure}}::h01d76e8863c4721f
[INFO] [stdout]                         at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.5.0/src/lib.rs:504
[INFO] [stdout]    4:     0x55a0206aba89 - core::option::Option<T>::unwrap_or_else::h247a1ef906691a89
[INFO] [stdout]                         at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/option.rs:977
[INFO] [stdout]    5:     0x55a0206ae506 - <core::result::Result<T,E> as serial_enumerate::errors::ChainErr<T>>::chain_err::{{closure}}::h041d234311a26769
[INFO] [stdout]                         at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.5.0/src/lib.rs:503
[INFO] [stdout]    6:     0x55a0206abcd6 - core::result::Result<T,E>::map_err::ha61322007064f603
[INFO] [stdout]                         at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/result.rs:829
[INFO] [stdout]    7:     0x55a0206ae351 - <core::result::Result<T,E> as serial_enumerate::errors::ChainErr<T>>::chain_err::h5f6bb2b2dc64f555
[INFO] [stdout]                         at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/error-chain-0.5.0/src/lib.rs:500
[INFO] [stdout]    8:     0x55a0206ada28 - serial_enumerate::enumerate_serial_ports::hd28508139b7a266f
[INFO] [stdout]                         at src/lib.rs:46
[INFO] [stdout]    9:     0x55a0206aa251 - rust_out::main::_doctest_main_src_lib_rs_4_0::h5a5cce24daef7dd6
[INFO] [stdout]   10:     0x55a0206aa235 - rust_out::main::h90fc46ea9798ded1
[INFO] [stdout]   11:     0x55a0206a9c02 - core::ops::function::FnOnce::call_once::h48eb9b1eb2de063c
[INFO] [stdout]   12:     0x55a0206a99a5 - std::sys_common::backtrace::__rust_begin_short_backtrace::h747a6d1e1b11dda9
[INFO] [stdout]   13:     0x55a0206a99f8 - std::rt::lang_start::{{closure}}::hc32502aff423e72f
[INFO] [stdout]   14:     0x55a0206f71ac - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hac8b4a62b6f52371
[INFO] [stdout]                         at library/core/src/ops/function.rs:284
[INFO] [stdout]                          - std::panicking::try::do_call::h6fc24bc97db29d34
[INFO] [stdout]                         at library/std/src/panicking.rs:559
[INFO] [stdout]                          - std::panicking::try::hc544b64aa2eea933
[INFO] [stdout]                         at library/std/src/panicking.rs:523
[INFO] [stdout]                          - std::panic::catch_unwind::hefb17e81fb559b9c
[INFO] [stdout]                         at library/std/src/panic.rs:149
[INFO] [stdout]                          - std::rt::lang_start_internal::{{closure}}::h834103e2d23d958b
[INFO] [stdout]                         at library/std/src/rt.rs:141
[INFO] [stdout]                          - std::panicking::try::do_call::he39c25d597788515
[INFO] [stdout]                         at library/std/src/panicking.rs:559
[INFO] [stdout]                          - std::panicking::try::hf4ef8dd97697f2c7
[INFO] [stdout]                         at library/std/src/panicking.rs:523
[INFO] [stdout]                          - std::panic::catch_unwind::haa22d191a5c8abfb
[INFO] [stdout]                         at library/std/src/panic.rs:149
[INFO] [stdout]                          - std::rt::lang_start_internal::h8104aca277c551bf
[INFO] [stdout]                         at library/std/src/rt.rs:141
[INFO] [stdout]   15:     0x55a0206a99d6 - std::rt::lang_start::h363611def46ee6df
[INFO] [stdout]   16:     0x55a0206aa504 - main
[INFO] [stdout]   17:     0x7fa28ccfbd8f - <unknown>
[INFO] [stdout]   18:     0x7fa28ccfbe3f - __libc_start_main
[INFO] [stdout]   19:     0x55a0206a9774 - _start
[INFO] [stdout]   20:                0x0 - <unknown>)))
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55a0206fbe35 - std::backtrace_rs::backtrace::libunwind::trace::he49dc9a9e3164223
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x55a0206fbe35 - std::backtrace_rs::backtrace::trace_unsynchronized::h3a3e77c68030aa6b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55a0206fbe35 - std::sys_common::backtrace::_print_fmt::h9479ad2f99afd5d4
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55a0206fbe35 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hfb01aa1fa3fb1821
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55a0207197ab - core::fmt::rt::Argument::fmt::h125e56152abbc1c3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x55a0207197ab - core::fmt::write::hb0ab4ff05ccfe741
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x55a0206f9e1f - std::io::Write::write_fmt::h456b7988df61daf3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x55a0206fbc0e - std::sys_common::backtrace::_print::h79ca548f3a2adf4b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55a0206fbc0e - std::sys_common::backtrace::print::h9aebf997b2fea2d3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55a0206fceb9 - std::panicking::default_hook::{{closure}}::h68a0954af2694526
[INFO] [stdout]   10:     0x55a0206fcc88 - std::panicking::default_hook::h5be50cc6849ffb00
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x55a0206fd353 - std::panicking::rust_panic_with_hook::h3c0df6036729334c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x55a0206fd234 - std::panicking::begin_panic_handler::{{closure}}::ha3a21e93c4cfd807
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x55a0206fc2f9 - std::sys_common::backtrace::__rust_end_short_backtrace::h19508a8f8ae71dc9
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   14:     0x55a0206fcf67 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x55a0206a90c3 - core::panicking::panic_fmt::h2ba8af99174d83ea
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x55a0206a94d6 - core::result::unwrap_failed::h52f3bbb78b59f71d
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x55a0206aa2be - rust_out::main::_doctest_main_src_lib_rs_4_0::h5a5cce24daef7dd6
[INFO] [stdout]   18:     0x55a0206aa236 - rust_out::main::h90fc46ea9798ded1
[INFO] [stdout]   19:     0x55a0206a9c03 - core::ops::function::FnOnce::call_once::h48eb9b1eb2de063c
[INFO] [stdout]   20:     0x55a0206a99a6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h747a6d1e1b11dda9
[INFO] [stdout]   21:     0x55a0206a99f9 - std::rt::lang_start::{{closure}}::hc32502aff423e72f
[INFO] [stdout]   22:     0x55a0206f71ad - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hac8b4a62b6f52371
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   23:     0x55a0206f71ad - std::panicking::try::do_call::h6fc24bc97db29d34
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   24:     0x55a0206f71ad - std::panicking::try::hc544b64aa2eea933
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   25:     0x55a0206f71ad - std::panic::catch_unwind::hefb17e81fb559b9c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   26:     0x55a0206f71ad - std::rt::lang_start_internal::{{closure}}::h834103e2d23d958b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/rt.rs:141:48
[INFO] [stdout]   27:     0x55a0206f71ad - std::panicking::try::do_call::he39c25d597788515
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   28:     0x55a0206f71ad - std::panicking::try::hf4ef8dd97697f2c7
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   29:     0x55a0206f71ad - std::panic::catch_unwind::haa22d191a5c8abfb
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   30:     0x55a0206f71ad - std::rt::lang_start_internal::h8104aca277c551bf
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/rt.rs:141:20
[INFO] [stdout]   31:     0x55a0206a99d7 - std::rt::lang_start::h363611def46ee6df
[INFO] [stdout]   32:     0x55a0206aa505 - main
[INFO] [stdout]   33:     0x7fa28ccfbd90 - <unknown>
[INFO] [stdout]   34:     0x7fa28ccfbe40 - __libc_start_main
[INFO] [stdout]   35:     0x55a0206a9775 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 4)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.29s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "d32ca9af6538c48c34f234d0e8c3e5b329689d298a9f130d11352693d282ae3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d32ca9af6538c48c34f234d0e8c3e5b329689d298a9f130d11352693d282ae3c", kill_on_drop: false }`
[INFO] [stdout] d32ca9af6538c48c34f234d0e8c3e5b329689d298a9f130d11352693d282ae3c
