[INFO] fetching crate fern 0.6.0...
[INFO] testing fern-0.6.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate fern 0.6.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate fern 0.6.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fern 0.6.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate fern 0.6.0
[INFO] tweaked toml for crates.io crate fern 0.6.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate fern 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded signal-hook v0.1.13
[INFO] [stderr]   Downloaded backtrace v0.3.45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 267117f11e2a6431ccae6c1018973447603f52d966b5470e34ac5ab9a2292854
[INFO] running `Command { std: "docker" "start" "-a" "267117f11e2a6431ccae6c1018973447603f52d966b5470e34ac5ab9a2292854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "267117f11e2a6431ccae6c1018973447603f52d966b5470e34ac5ab9a2292854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "267117f11e2a6431ccae6c1018973447603f52d966b5470e34ac5ab9a2292854", kill_on_drop: false }`
[INFO] [stdout] 267117f11e2a6431ccae6c1018973447603f52d966b5470e34ac5ab9a2292854
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0127bcaf01da80a05b34df1545b44558c3e68f66d46d45db74cac6fa21452f3e
[INFO] running `Command { std: "docker" "start" "-a" "0127bcaf01da80a05b34df1545b44558c3e68f66d46d45db74cac6fa21452f3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling fern v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `Command { std: "docker" "inspect" "0127bcaf01da80a05b34df1545b44558c3e68f66d46d45db74cac6fa21452f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0127bcaf01da80a05b34df1545b44558c3e68f66d46d45db74cac6fa21452f3e", kill_on_drop: false }`
[INFO] [stdout] 0127bcaf01da80a05b34df1545b44558c3e68f66d46d45db74cac6fa21452f3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a842d3bc3317ef4ec4e7f416cb6e5d0f2995476f18b50cb65613ce457692884
[INFO] running `Command { std: "docker" "start" "-a" "0a842d3bc3317ef4ec4e7f416cb6e5d0f2995476f18b50cb65613ce457692884", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling fern v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.81s
[INFO] running `Command { std: "docker" "inspect" "0a842d3bc3317ef4ec4e7f416cb6e5d0f2995476f18b50cb65613ce457692884", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a842d3bc3317ef4ec4e7f416cb6e5d0f2995476f18b50cb65613ce457692884", kill_on_drop: false }`
[INFO] [stdout] 0a842d3bc3317ef4ec4e7f416cb6e5d0f2995476f18b50cb65613ce457692884
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 132d27c8f72d6002055778022166462ac5e6eb80cc0da6ad49680e20b8067950
[INFO] running `Command { std: "docker" "start" "-a" "132d27c8f72d6002055778022166462ac5e6eb80cc0da6ad49680e20b8067950", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fern-64507b4da0367240)
[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_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_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-602226f578ba4092)
[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-d5505b27664ff434)
[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-0b62e316a3080ba1)
[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 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/global_logging.rs (/opt/rustwide/target/debug/deps/global_logging-bc29ef59b88da312)
[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-9a8908f703cf4b8f)
[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-2d98faff10a96db4)
[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-ef266177c40b357b)
[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-39129d8ed70b5cab)
[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-7b2a2e707d7d6868)
[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 29 tests
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 904) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch (line 37) - compile ... ok
[INFO] [stdout] test src/lib.rs - log_file (line 257) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::into_shared (line 359) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::writer (line 958) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 894) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::writer (line 941) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 916) - compile ... ok
[INFO] [stdout] test src/builders.rs - builders::Panic (line 710) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 23) - compile ... ok
[INFO] [stdout] test src/meta.rs - meta (line 6) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level (line 214) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stderr (line 1052) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::chain (line 190) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level_for (line 245) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::into_log (line 577) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::sender (line 1072) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::filter (line 319) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stdout (line 1019) ... ok
[INFO] [stdout] test src/lib.rs - (line 140) ... ok
[INFO] [stdout] test src/meta.rs - meta (line 49) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::call (line 1121) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stderr (line 1045) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stdout (line 1026) ... ok
[INFO] [stdout] test src/log_impl.rs - log_impl::FormatCallback (line 47) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level_for (line 259) ... ok
[INFO] [stdout] test src/log_impl.rs - log_impl::FormatCallback::finish (line 458) ... ok
[INFO] [stdout] test src/builders.rs - builders::Panic (line 690) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::format (line 156) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.55s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "132d27c8f72d6002055778022166462ac5e6eb80cc0da6ad49680e20b8067950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "132d27c8f72d6002055778022166462ac5e6eb80cc0da6ad49680e20b8067950", kill_on_drop: false }`
[INFO] [stdout] 132d27c8f72d6002055778022166462ac5e6eb80cc0da6ad49680e20b8067950