[INFO] fetching crate fern 0.6.2...
[INFO] testing fern-0.6.2 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate fern 0.6.2 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate fern 0.6.2 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 fern 0.6.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate fern 0.6.2
[INFO] tweaked toml for crates.io crate fern 0.6.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate fern 0.6.2 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded reopen v0.3.0
[INFO] [stderr]   Downloaded reopen v1.0.3
[INFO] [stderr]   Downloaded unix_socket v0.5.0
[INFO] [stderr]   Downloaded syslog v4.0.1
[INFO] [stderr]   Downloaded syslog v6.0.1
[INFO] [stderr]   Downloaded syslog v3.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e31d0bdcdf9b2c5d8c9808c402dbe99a3cbe18ff9491fca6e8afa3d1d0aa578d
[INFO] running `Command { std: "docker" "start" "-a" "e31d0bdcdf9b2c5d8c9808c402dbe99a3cbe18ff9491fca6e8afa3d1d0aa578d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e31d0bdcdf9b2c5d8c9808c402dbe99a3cbe18ff9491fca6e8afa3d1d0aa578d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e31d0bdcdf9b2c5d8c9808c402dbe99a3cbe18ff9491fca6e8afa3d1d0aa578d", kill_on_drop: false }`
[INFO] [stdout] e31d0bdcdf9b2c5d8c9808c402dbe99a3cbe18ff9491fca6e8afa3d1d0aa578d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 0f804539236ebb22b32e5ae838fd8d6b3a286b240f2807020d43ef048360896d
[INFO] running `Command { std: "docker" "start" "-a" "0f804539236ebb22b32e5ae838fd8d6b3a286b240f2807020d43ef048360896d", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling fern v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "0f804539236ebb22b32e5ae838fd8d6b3a286b240f2807020d43ef048360896d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f804539236ebb22b32e5ae838fd8d6b3a286b240f2807020d43ef048360896d", kill_on_drop: false }`
[INFO] [stdout] 0f804539236ebb22b32e5ae838fd8d6b3a286b240f2807020d43ef048360896d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 68368b884d8bc378f55f35d8f16d8fbf84a40ac248cedc63aec4b4625af07d10
[INFO] running `Command { std: "docker" "start" "-a" "68368b884d8bc378f55f35d8f16d8fbf84a40ac248cedc63aec4b4625af07d10", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling io-lifetimes v1.0.9
[INFO] [stderr]    Compiling rustix v0.36.11
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[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 v3.4.0
[INFO] [stderr]    Compiling fern v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.12s
[INFO] running `Command { std: "docker" "inspect" "68368b884d8bc378f55f35d8f16d8fbf84a40ac248cedc63aec4b4625af07d10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68368b884d8bc378f55f35d8f16d8fbf84a40ac248cedc63aec4b4625af07d10", kill_on_drop: false }`
[INFO] [stdout] 68368b884d8bc378f55f35d8f16d8fbf84a40ac248cedc63aec4b4625af07d10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a5e2c8494d5e31a8ecff5ca815dad8203f2556b2362adddb88a9d3413a8f2dce
[INFO] running `Command { std: "docker" "start" "-a" "a5e2c8494d5e31a8ecff5ca815dad8203f2556b2362adddb88a9d3413a8f2dce", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fern-67f5b82131a4904d)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test log_impl::test::test_level_config_all_chars ... ok
[INFO] [stdout] test log_impl::test::test_level_config_find_exact_minimal ... ok
[INFO] [stdout] test log_impl::test::test_level_config_hierarchy_correct ... ok
[INFO] [stdout] test log_impl::test::test_level_config_find_exact_many ... 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] [stdout] test log_impl::test::test_level_config_single_colon_is_not_double_colon ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/channel_logging.rs (/opt/rustwide/target/debug/deps/channel_logging-2882432e827bd96c)
[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/enabled_is_deep_check.rs (/opt/rustwide/target/debug/deps/enabled_is_deep_check-33def8d3360c7851)
[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] [stderr]      Running tests/file_logging.rs (/opt/rustwide/target/debug/deps/file_logging-f869897cc22ac2e9)
[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-96b9ac4b6ffe8009)
[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-93c1e4c4ba66260f)
[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-de2a14e6222f2b6f)
[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 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/reopen_logging.rs (/opt/rustwide/target/debug/deps/reopen_logging-d3483fc3f26a6e15)
[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/support.rs (/opt/rustwide/target/debug/deps/support-b3154b7fa20baca9)
[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-70a93f5e7f11a695)
[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::Dispatch (line 40) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 962) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 984) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::into_shared (line 362) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 972) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::writer (line 1009) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::writer (line 1026) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Panic (line 747) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::chain (line 193) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level_for (line 262) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::into_log (line 603) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level_for (line 248) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::call (line 1259) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::sender (line 1182) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::format (line 159) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level (line 217) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::filter (line 322) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stderr (line 1162) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stderr (line 1155) ... ok
[INFO] [stdout] test src/lib.rs - (line 59) - compile ... ok
[INFO] [stdout] test src/lib.rs - log_file (line 331) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stdout (line 1129) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stdout (line 1136) ... ok
[INFO] [stdout] test src/lib.rs - (line 131) ... ok
[INFO] [stdout] test src/lib.rs - (line 102) ... ok
[INFO] [stdout] test src/builders.rs - builders::Panic (line 727) ... ok
[INFO] [stdout] test src/lib.rs - (line 124) ... ok
[INFO] [stdout] test src/lib.rs - (line 160) ... ok
[INFO] [stdout] test src/lib.rs - (line 182) ... ok
[INFO] [stdout] test src/lib.rs - (line 95) ... ok
[INFO] [stdout] test src/lib.rs - (line 151) ... ok
[INFO] [stdout] test src/log_impl.rs - log_impl::FormatCallback (line 47) ... ok
[INFO] [stdout] test src/lib.rs - (line 215) ... ok
[INFO] [stdout] test src/log_impl.rs - log_impl::FormatCallback<'a>::finish (line 495) ... ok
[INFO] [stdout] test src/lib.rs - (line 172) ... FAILED
[INFO] [stdout] test src/meta.rs - meta (line 6) ... ok
[INFO] [stdout] test src/meta.rs - meta (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 172) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' 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:     0x55d615f25835 - 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:     0x55d615f25835 - 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:     0x55d615f25835 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55d615f25835 - <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:     0x55d615f42aab - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x55d615f42aab - core::fmt::write::h8bcd80919a02be29
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x55d615f23abf - std::io::Write::write_fmt::hed769ca6c29434ec
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x55d615f2560e - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55d615f2560e - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55d615f26979 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stdout]   10:     0x55d615f266bd - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x55d615f26e13 - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x55d615f26cf4 - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x55d615f25cf9 - 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:     0x55d615f26a27 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x55d615effb83 - core::panicking::panic_fmt::hec11a924b87ce965
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x55d615efff96 - core::result::unwrap_failed::h382691b96ca8c13a
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x55d615f012df - rust_out::main::h696a342f0ae7cd72
[INFO] [stdout]   18:     0x55d615f004f3 - core::ops::function::FnOnce::call_once::hacff659aa20c7b40
[INFO] [stdout]   19:     0x55d615f00326 - std::sys_common::backtrace::__rust_begin_short_backtrace::hcc6b8bea3112e884
[INFO] [stdout]   20:     0x55d615f00479 - std::rt::lang_start::{{closure}}::h4db0ca8543e29a47
[INFO] [stdout]   21:     0x55d615f2155d - 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]   22:     0x55d615f2155d - std::panicking::try::do_call::hf7072797cbfea7fa
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   23:     0x55d615f2155d - std::panicking::try::h3a37e38691a5244b
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   24:     0x55d615f2155d - std::panic::catch_unwind::hc7cc1460e4236209
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   25:     0x55d615f2155d - std::rt::lang_start_internal::{{closure}}::hce632608b277cffc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:48
[INFO] [stdout]   26:     0x55d615f2155d - std::panicking::try::do_call::hafc0f13e6abd9d79
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   27:     0x55d615f2155d - std::panicking::try::h67b8f1800ef15799
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   28:     0x55d615f2155d - std::panic::catch_unwind::he5b260dc522c68be
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   29:     0x55d615f2155d - std::rt::lang_start_internal::hf119eb75d1ffe221
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/rt.rs:141:20
[INFO] [stdout]   30:     0x55d615f00457 - std::rt::lang_start::ha9360cc92730957e
[INFO] [stdout]   31:     0x55d615f014b5 - main
[INFO] [stdout]   32:     0x7fec389b9d90 - <unknown>
[INFO] [stdout]   33:     0x7fec389b9e40 - __libc_start_main
[INFO] [stdout]   34:     0x55d615f001b5 - _start
[INFO] [stdout]   35:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 172)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 36 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.83s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "a5e2c8494d5e31a8ecff5ca815dad8203f2556b2362adddb88a9d3413a8f2dce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5e2c8494d5e31a8ecff5ca815dad8203f2556b2362adddb88a9d3413a8f2dce", kill_on_drop: false }`
[INFO] [stdout] a5e2c8494d5e31a8ecff5ca815dad8203f2556b2362adddb88a9d3413a8f2dce
[INFO] testing fern-0.6.2 against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] extracting crate fern 0.6.2 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate fern 0.6.2 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 fern 0.6.2
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate fern 0.6.2
[INFO] tweaked toml for crates.io crate fern 0.6.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate fern 0.6.2 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" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2c0a6e9ce098e855a959220cb90a7aebb1b11927247e108a36c708243f07d3ab
[INFO] running `Command { std: "docker" "start" "-a" "2c0a6e9ce098e855a959220cb90a7aebb1b11927247e108a36c708243f07d3ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c0a6e9ce098e855a959220cb90a7aebb1b11927247e108a36c708243f07d3ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c0a6e9ce098e855a959220cb90a7aebb1b11927247e108a36c708243f07d3ab", kill_on_drop: false }`
[INFO] [stdout] 2c0a6e9ce098e855a959220cb90a7aebb1b11927247e108a36c708243f07d3ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 807ed21ebd33dd6cd8b0b289729272d7b24325504b9c84e0eb547da8bb8e3d00
[INFO] running `Command { std: "docker" "start" "-a" "807ed21ebd33dd6cd8b0b289729272d7b24325504b9c84e0eb547da8bb8e3d00", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling fern v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "807ed21ebd33dd6cd8b0b289729272d7b24325504b9c84e0eb547da8bb8e3d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "807ed21ebd33dd6cd8b0b289729272d7b24325504b9c84e0eb547da8bb8e3d00", kill_on_drop: false }`
[INFO] [stdout] 807ed21ebd33dd6cd8b0b289729272d7b24325504b9c84e0eb547da8bb8e3d00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 360295e734e0f27f44428884e3460c36d98474e40db7834eb7d1325309b3e580
[INFO] running `Command { std: "docker" "start" "-a" "360295e734e0f27f44428884e3460c36d98474e40db7834eb7d1325309b3e580", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling io-lifetimes v1.0.9
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling rustix v0.36.11
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[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 v3.4.0
[INFO] [stderr]    Compiling fern v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.86s
[INFO] running `Command { std: "docker" "inspect" "360295e734e0f27f44428884e3460c36d98474e40db7834eb7d1325309b3e580", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "360295e734e0f27f44428884e3460c36d98474e40db7834eb7d1325309b3e580", kill_on_drop: false }`
[INFO] [stdout] 360295e734e0f27f44428884e3460c36d98474e40db7834eb7d1325309b3e580
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] fe5bb7ed688d356397e267a6659b9592636a837bdcca24c09736463cc9460026
[INFO] running `Command { std: "docker" "start" "-a" "fe5bb7ed688d356397e267a6659b9592636a837bdcca24c09736463cc9460026", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fern-67f5b82131a4904d)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test log_impl::test::test_level_config_all_chars ... ok
[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_hierarchy_correct ... ok
[INFO] [stdout] test log_impl::test::test_level_config_similar_names_are_not_same ... ok
[INFO] [stdout] test log_impl::test::test_level_config_simple_hierarchy ... ok
[INFO] [stdout] test log_impl::test::test_level_config_single_colon_is_not_double_colon ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/channel_logging.rs (/opt/rustwide/target/debug/deps/channel_logging-2882432e827bd96c)
[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/enabled_is_deep_check.rs (/opt/rustwide/target/debug/deps/enabled_is_deep_check-33def8d3360c7851)
[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] [stderr]      Running tests/file_logging.rs (/opt/rustwide/target/debug/deps/file_logging-f869897cc22ac2e9)
[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-96b9ac4b6ffe8009)
[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-93c1e4c4ba66260f)
[INFO] [stderr]      Running tests/panic_logging.rs (/opt/rustwide/target/debug/deps/panic_logging-de2a14e6222f2b6f)
[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 3 tests
[INFO] [stdout] this should not panic
[INFO] [stdout] test double_chained_with_panics_no_info_panic ... ok
[INFO] [stderr]      Running tests/reopen_logging.rs (/opt/rustwide/target/debug/deps/reopen_logging-d3483fc3f26a6e15)
[INFO] [stdout] test double_chained_with_panics_yes_error_panic - should panic ... ok
[INFO] [stderr]      Running tests/support.rs (/opt/rustwide/target/debug/deps/support-b3154b7fa20baca9)
[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 0.02s
[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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/write_logging.rs (/opt/rustwide/target/debug/deps/write_logging-70a93f5e7f11a695)
[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 1 test
[INFO] [stderr]    Doc-tests fern
[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] [stdout] 
[INFO] [stdout] running 37 tests
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 984) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::into_shared (line 362) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch (line 40) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 962) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 972) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::writer (line 1009) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::writer (line 1026) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Panic (line 747) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::chain (line 193) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level (line 217) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::format (line 159) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stderr (line 1155) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stderr (line 1162) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stdout (line 1136) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::into_log (line 603) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level_for (line 248) ... ok
[INFO] [stdout] test src/lib.rs - (line 131) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::filter (line 322) ... ok
[INFO] [stdout] test src/builders.rs - builders::Panic (line 727) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level_for (line 262) ... ok
[INFO] [stdout] test src/lib.rs - (line 124) ... ok
[INFO] [stdout] test src/lib.rs - (line 59) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stdout (line 1129) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::call (line 1259) ... ok
[INFO] [stdout] test src/lib.rs - (line 102) ... ok
[INFO] [stdout] test src/lib.rs - log_file (line 331) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::sender (line 1182) ... ok
[INFO] [stdout] test src/lib.rs - (line 160) ... ok
[INFO] [stdout] test src/lib.rs - (line 182) ... ok
[INFO] [stdout] test src/lib.rs - (line 151) ... ok
[INFO] [stdout] test src/meta.rs - meta (line 6) ... ok
[INFO] [stdout] test src/lib.rs - (line 215) ... ok
[INFO] [stdout] test src/lib.rs - (line 95) ... ok
[INFO] [stdout] test src/log_impl.rs - log_impl::FormatCallback (line 47) ... ok
[INFO] [stdout] test src/lib.rs - (line 172) ... FAILED
[INFO] [stdout] test src/log_impl.rs - log_impl::FormatCallback<'a>::finish (line 495) ... ok
[INFO] [stdout] test src/meta.rs - meta (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 172) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' 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:     0x564d57013925 - 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:     0x564d57013925 - 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:     0x564d57013925 - std::sys_common::backtrace::_print_fmt::h9479ad2f99afd5d4
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x564d57013925 - <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:     0x564d57030b4b - core::fmt::rt::Argument::fmt::h125e56152abbc1c3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x564d57030b4b - core::fmt::write::hb0ab4ff05ccfe741
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x564d57011aff - std::io::Write::write_fmt::h456b7988df61daf3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x564d570136fe - std::sys_common::backtrace::_print::h79ca548f3a2adf4b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x564d570136fe - std::sys_common::backtrace::print::h9aebf997b2fea2d3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x564d570149a9 - std::panicking::default_hook::{{closure}}::h68a0954af2694526
[INFO] [stdout]   10:     0x564d57014778 - std::panicking::default_hook::h5be50cc6849ffb00
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:298:9
[INFO] [stdout]   11:     0x564d57014e43 - std::panicking::rust_panic_with_hook::h3c0df6036729334c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:795:13
[INFO] [stdout]   12:     0x564d57014d24 - std::panicking::begin_panic_handler::{{closure}}::ha3a21e93c4cfd807
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:664:13
[INFO] [stdout]   13:     0x564d57013de9 - 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:     0x564d57014a57 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:652:5
[INFO] [stdout]   15:     0x564d56fedb63 - core::panicking::panic_fmt::h2ba8af99174d83ea
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panicking.rs:72:14
[INFO] [stdout]   16:     0x564d56fedf76 - core::result::unwrap_failed::h52f3bbb78b59f71d
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/result.rs:1654:5
[INFO] [stdout]   17:     0x564d56fef2bf - rust_out::main::h90fc46ea9798ded1
[INFO] [stdout]   18:     0x564d56fee4d3 - core::ops::function::FnOnce::call_once::h48eb9b1eb2de063c
[INFO] [stdout]   19:     0x564d56fee306 - std::sys_common::backtrace::__rust_begin_short_backtrace::h747a6d1e1b11dda9
[INFO] [stdout]   20:     0x564d56fee459 - std::rt::lang_start::{{closure}}::hc32502aff423e72f
[INFO] [stdout]   21:     0x564d5700f64d - 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]   22:     0x564d5700f64d - std::panicking::try::do_call::h6fc24bc97db29d34
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   23:     0x564d5700f64d - std::panicking::try::hc544b64aa2eea933
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   24:     0x564d5700f64d - std::panic::catch_unwind::hefb17e81fb559b9c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   25:     0x564d5700f64d - std::rt::lang_start_internal::{{closure}}::h834103e2d23d958b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/rt.rs:141:48
[INFO] [stdout]   26:     0x564d5700f64d - std::panicking::try::do_call::he39c25d597788515
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   27:     0x564d5700f64d - std::panicking::try::hf4ef8dd97697f2c7
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   28:     0x564d5700f64d - std::panic::catch_unwind::haa22d191a5c8abfb
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   29:     0x564d5700f64d - std::rt::lang_start_internal::h8104aca277c551bf
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/rt.rs:141:20
[INFO] [stdout]   30:     0x564d56fee437 - std::rt::lang_start::h363611def46ee6df
[INFO] [stdout]   31:     0x564d56fef495 - main
[INFO] [stdout]   32:     0x7f4fb0d57d90 - <unknown>
[INFO] [stdout]   33:     0x7f4fb0d57e40 - __libc_start_main
[INFO] [stdout]   34:     0x564d56fee195 - _start
[INFO] [stdout]   35:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 172)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 36 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.27s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "fe5bb7ed688d356397e267a6659b9592636a837bdcca24c09736463cc9460026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe5bb7ed688d356397e267a6659b9592636a837bdcca24c09736463cc9460026", kill_on_drop: false }`
[INFO] [stdout] fe5bb7ed688d356397e267a6659b9592636a837bdcca24c09736463cc9460026
