[INFO] fetching crate fern 0.7.1...
[INFO] testing fern-0.7.1 against beta-2026-03-05 for beta-1.95-1
[INFO] extracting crate fern 0.7.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate fern 0.7.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate fern 0.7.1
[INFO] tweaked toml for crates.io crate fern 0.7.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fern 0.7.1 on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fern 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5270a4d487030dc28454d20cc63a819a80a3d5479c025d265be44ed65c4f6fd
[INFO] running `Command { std: "docker" "start" "-a" "d5270a4d487030dc28454d20cc63a819a80a3d5479c025d265be44ed65c4f6fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5270a4d487030dc28454d20cc63a819a80a3d5479c025d265be44ed65c4f6fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5270a4d487030dc28454d20cc63a819a80a3d5479c025d265be44ed65c4f6fd", kill_on_drop: false }`
[INFO] [stdout] d5270a4d487030dc28454d20cc63a819a80a3d5479c025d265be44ed65c4f6fd
[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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c00a3d4d0669dfd0611f85c1587bec21d111c7146f11f47a9cc6f96cffeffcd
[INFO] running `Command { std: "docker" "start" "-a" "9c00a3d4d0669dfd0611f85c1587bec21d111c7146f11f47a9cc6f96cffeffcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling fern v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "9c00a3d4d0669dfd0611f85c1587bec21d111c7146f11f47a9cc6f96cffeffcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c00a3d4d0669dfd0611f85c1587bec21d111c7146f11f47a9cc6f96cffeffcd", kill_on_drop: false }`
[INFO] [stdout] 9c00a3d4d0669dfd0611f85c1587bec21d111c7146f11f47a9cc6f96cffeffcd
[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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9ec0a27825a2d7527d71aef1e14a1143791ff347150db3c70c5f449ef4672a5
[INFO] running `Command { std: "docker" "start" "-a" "f9ec0a27825a2d7527d71aef1e14a1143791ff347150db3c70c5f449ef4672a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling rustix v0.38.9
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling tempfile v3.8.0
[INFO] [stderr]    Compiling fern v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.56s
[INFO] running `Command { std: "docker" "inspect" "f9ec0a27825a2d7527d71aef1e14a1143791ff347150db3c70c5f449ef4672a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9ec0a27825a2d7527d71aef1e14a1143791ff347150db3c70c5f449ef4672a5", kill_on_drop: false }`
[INFO] [stdout] f9ec0a27825a2d7527d71aef1e14a1143791ff347150db3c70c5f449ef4672a5
[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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 439f7710bf416d170dac98011e58b3a9b1a599fb28bd509360b635bcf7f3d0c0
[INFO] running `Command { std: "docker" "start" "-a" "439f7710bf416d170dac98011e58b3a9b1a599fb28bd509360b635bcf7f3d0c0", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fern-81910c336d33d3d4)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test log_impl::test::test_level_config_find_exact_many ... ok
[INFO] [stdout] test log_impl::test::test_level_config_find_exact_minimal ... ok
[INFO] [stdout] test log_impl::test::test_level_config_all_chars ... ok
[INFO] [stdout] test log_impl::test::test_level_config_single_colon_is_not_double_colon ... ok
[INFO] [stdout] test log_impl::test::test_level_config_hierarchy_correct ... ok
[INFO] [stdout] test log_impl::test::test_level_config_simple_hierarchy ... ok
[INFO] [stdout] test log_impl::test::test_level_config_similar_names_are_not_same ... ok
[INFO] [stderr]      Running tests/channel_logging.rs (/opt/rustwide/target/debug/deps/channel_logging-f6330a20d8c42338)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/enabled_is_deep_check.rs (/opt/rustwide/target/debug/deps/enabled_is_deep_check-b218c9cf25e46da3)
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_channel_logging ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/file_logging.rs (/opt/rustwide/target/debug/deps/file_logging-33f49289b6fc74b4)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test ensure_enabled_is_a_deep_check ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] [INFO] Test information message
[INFO] [stdout] [WARN] Test warning message
[INFO] [stdout] [ERROR] Test error message
[INFO] [stdout] test test_basic_logging_file_logging ... ok
[INFO] [stdout] test test_custom_line_separators ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/global_logging.rs (/opt/rustwide/target/debug/deps/global_logging-a93f399799c24ee5)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_global_logger ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/meta_logging.rs (/opt/rustwide/target/debug/deps/meta_logging-159d894427e69180)
[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]      Running tests/panic_logging.rs (/opt/rustwide/target/debug/deps/panic_logging-ab5e6a47358c9f5a)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] this should not panic
[INFO] [stdout] test double_chained_with_panics_no_info_panic ... ok
[INFO] [stdout] test double_chained_with_panics_yes_error_panic - should panic ... ok
[INFO] [stdout] test test_panic_panics - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/reopen_logging.rs (/opt/rustwide/target/debug/deps/reopen_logging-009f9d9ff78cfc6a)
[INFO] [stderr]      Running tests/support.rs (/opt/rustwide/target/debug/deps/support-5e58cc4b7aa5cb8f)
[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] [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]      Running tests/write_logging.rs (/opt/rustwide/target/debug/deps/write_logging-fed02b574d7cd659)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] [INFO] Test information message
[INFO] [stdout] test test_raw_write_logging ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fern
[INFO] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 1020) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 1010) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch (line 46) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::writer (line 1057) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::into_shared (line 368) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 1032) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::call (line 1335) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::chain (line 199) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::format (line 165) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::filter (line 328) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stderr (line 1203) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stdout (line 1177) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level_for (line 254) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level (line 223) ... ok
[INFO] [stdout] test src/builders.rs - builders::Panic (line 756) ... ok
[INFO] [stdout] test src/builders.rs - builders::Panic (line 776) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level_for (line 268) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::into_log (line 624) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::sender (line 1230) ... ok
[INFO] [stdout] test src/lib.rs - (line 106) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stdout (line 1184) ... ok
[INFO] [stdout] test src/lib.rs - (line 126) ... ok
[INFO] [stdout] test src/lib.rs - (line 147) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 157) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stderr (line 1210) ... ok
[INFO] [stdout] test src/lib.rs - (line 34) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::writer (line 1074) - compile ... ok
[INFO] [stdout] test src/lib.rs - log_file (line 319) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 190) ... ok
[INFO] [stdout] test src/log_impl.rs - log_impl::FormatCallback<'a>::finish (line 520) ... ok
[INFO] [stdout] test src/lib.rs - (line 135) ... ok
[INFO] [stdout] test src/lib.rs - (line 77) ... ok
[INFO] [stdout] test src/meta.rs - meta (line 6) ... ok
[INFO] [stdout] test src/log_impl.rs - log_impl::FormatCallback (line 49) ... ok
[INFO] [stdout] test src/meta.rs - meta (line 49) ... ok
[INFO] [stdout] test src/lib.rs - (line 70) ... ok
[INFO] [stdout] test src/lib.rs - (line 99) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 147) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (652) panicked at src/lib.rs:8:36:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5fcd747d8d5a - std[b80a194dd3c418bb]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5fcd747d8d5a - std[b80a194dd3c418bb]::backtrace_rs::backtrace::trace_unsynchronized::<std[b80a194dd3c418bb]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5fcd747d8d5a - std[b80a194dd3c418bb]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5fcd747d8d5a - <<std[b80a194dd3c418bb]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[10b6fa85044e1869]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5fcd747e935a - <core[10b6fa85044e1869]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5fcd747e935a - core[10b6fa85044e1869]::fmt::write
[INFO] [stdout]    6:     0x5fcd747dc562 - std[b80a194dd3c418bb]::io::default_write_fmt::<std[b80a194dd3c418bb]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5fcd747dc562 - <std[b80a194dd3c418bb]::sys::stdio::unix::Stderr as std[b80a194dd3c418bb]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5fcd747c4c2f - <std[b80a194dd3c418bb]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5fcd747c4c2f - std[b80a194dd3c418bb]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5fcd747d5291 - std[b80a194dd3c418bb]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x5fcd747d544b - std[b80a194dd3c418bb]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x5fcd747c4ce8 - std[b80a194dd3c418bb]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x5fcd747bca69 - std[b80a194dd3c418bb]::sys::backtrace::__rust_end_short_backtrace::<std[b80a194dd3c418bb]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x5fcd747c54cd - __rustc[9698a3e60dd14283]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x5fcd747e9b2c - core[10b6fa85044e1869]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x5fcd747e9902 - core[10b6fa85044e1869]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x5fcd747a756b - rust_out::main::hbc8fb3ef9073494f
[INFO] [stdout]   18:     0x5fcd747a6b63 - core::ops::function::FnOnce::call_once::h8578f0c031e386ae
[INFO] [stdout]   19:     0x5fcd747a6b36 - std::sys::backtrace::__rust_begin_short_backtrace::hb54d2daf111ce867
[INFO] [stdout]   20:     0x5fcd747a6b19 - std::rt::lang_start::{{closure}}::h94e8fd5c8cccecfa
[INFO] [stdout]   21:     0x5fcd747d4a14 - <&dyn core[10b6fa85044e1869]::ops::function::Fn<(), Output = i32> + core[10b6fa85044e1869]::panic::unwind_safe::RefUnwindSafe + core[10b6fa85044e1869]::marker::Sync as core[10b6fa85044e1869]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   22:     0x5fcd747d4a14 - std[b80a194dd3c418bb]::panicking::catch_unwind::do_call::<&dyn core[10b6fa85044e1869]::ops::function::Fn<(), Output = i32> + core[10b6fa85044e1869]::panic::unwind_safe::RefUnwindSafe + core[10b6fa85044e1869]::marker::Sync, i32>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:581:40
[INFO] [stdout]   23:     0x5fcd747d4a14 - std[b80a194dd3c418bb]::panicking::catch_unwind::<i32, &dyn core[10b6fa85044e1869]::ops::function::Fn<(), Output = i32> + core[10b6fa85044e1869]::panic::unwind_safe::RefUnwindSafe + core[10b6fa85044e1869]::marker::Sync>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:544:19
[INFO] [stdout]   24:     0x5fcd747d4a14 - std[b80a194dd3c418bb]::panic::catch_unwind::<&dyn core[10b6fa85044e1869]::ops::function::Fn<(), Output = i32> + core[10b6fa85044e1869]::panic::unwind_safe::RefUnwindSafe + core[10b6fa85044e1869]::marker::Sync, i32>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panic.rs:359:14
[INFO] [stdout]   25:     0x5fcd747d4a14 - std[b80a194dd3c418bb]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/rt.rs:175:24
[INFO] [stdout]   26:     0x5fcd747d4a14 - std[b80a194dd3c418bb]::panicking::catch_unwind::do_call::<std[b80a194dd3c418bb]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:581:40
[INFO] [stdout]   27:     0x5fcd747d4a14 - std[b80a194dd3c418bb]::panicking::catch_unwind::<isize, std[b80a194dd3c418bb]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panicking.rs:544:19
[INFO] [stdout]   28:     0x5fcd747d4a14 - std[b80a194dd3c418bb]::panic::catch_unwind::<std[b80a194dd3c418bb]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/panic.rs:359:14
[INFO] [stdout]   29:     0x5fcd747d4a14 - std[b80a194dd3c418bb]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/ad726b5063362ec9897ef3d67452fc5606ee70fa/library/std/src/rt.rs:171:5
[INFO] [stdout]   30:     0x5fcd747a6b01 - std::rt::lang_start::h7f170e4d70be7fa1
[INFO] [stdout]   31:     0x5fcd747a7735 - main
[INFO] [stdout]   32:     0x7842f1f741ca - <unknown>
[INFO] [stdout]   33:     0x7842f1f7428b - __libc_start_main
[INFO] [stdout]   34:     0x5fcd747a6915 - _start
[INFO] [stdout]   35:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 147)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 36 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.01s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "439f7710bf416d170dac98011e58b3a9b1a599fb28bd509360b635bcf7f3d0c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "439f7710bf416d170dac98011e58b3a9b1a599fb28bd509360b635bcf7f3d0c0", kill_on_drop: false }`
[INFO] [stdout] 439f7710bf416d170dac98011e58b3a9b1a599fb28bd509360b635bcf7f3d0c0
