[INFO] crate fern 0.6.0 is already in cache
[INFO] testing fern-0.6.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate fern 0.6.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate fern 0.6.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", 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-12/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" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2307bd4a5101f40fca4b1663cc8de839b2dbf294ff9859aa50a6fcfc6630a0b6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2307bd4a5101f40fca4b1663cc8de839b2dbf294ff9859aa50a6fcfc6630a0b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2307bd4a5101f40fca4b1663cc8de839b2dbf294ff9859aa50a6fcfc6630a0b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2307bd4a5101f40fca4b1663cc8de839b2dbf294ff9859aa50a6fcfc6630a0b6", kill_on_drop: false }`
[INFO] [stdout] 2307bd4a5101f40fca4b1663cc8de839b2dbf294ff9859aa50a6fcfc6630a0b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a880efea93a4ad4357a7c41a33bf9feda7413088bea33e9af5fb75b024277560
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a880efea93a4ad4357a7c41a33bf9feda7413088bea33e9af5fb75b024277560", 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 2.08s
[INFO] running `Command { std: "docker" "inspect" "a880efea93a4ad4357a7c41a33bf9feda7413088bea33e9af5fb75b024277560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a880efea93a4ad4357a7c41a33bf9feda7413088bea33e9af5fb75b024277560", kill_on_drop: false }`
[INFO] [stdout] a880efea93a4ad4357a7c41a33bf9feda7413088bea33e9af5fb75b024277560
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23300bac2bfec630e694aca5dd283df05d714ad17cd19fa6580ba19f83eecf77
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "23300bac2bfec630e694aca5dd283df05d714ad17cd19fa6580ba19f83eecf77", kill_on_drop: false }`
[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 libc v0.2.67
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.42
[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 16.25s
[INFO] running `Command { std: "docker" "inspect" "23300bac2bfec630e694aca5dd283df05d714ad17cd19fa6580ba19f83eecf77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23300bac2bfec630e694aca5dd283df05d714ad17cd19fa6580ba19f83eecf77", kill_on_drop: false }`
[INFO] [stdout] 23300bac2bfec630e694aca5dd283df05d714ad17cd19fa6580ba19f83eecf77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 723a2a03b0d434c82b806133e05257404a3f87e4f400564477a5c87474fea782
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "723a2a03b0d434c82b806133e05257404a3f87e4f400564477a5c87474fea782", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fern-f027c81313a725c0
[INFO] [stdout] running 7 tests
[INFO] [stdout] test log_impl::test::test_level_config_hierarchy_correct ... ok
[INFO] [stdout] test log_impl::test::test_level_config_all_chars ... 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_find_exact_minimal ... 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_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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/channel_logging-8c65a6536c0e354b
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/enabled_is_deep_check-bb1e877ce99bff88
[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
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/file_logging-0cbd1f222c9bca16
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/global_logging-97a47e7536a9e721
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/meta_logging-390f88ebdae3a44b
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/panic_logging-b131b9852fd829b3
[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
[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] [stdout] test test_panic_panics ... ok
[INFO] [stdout] test double_chained_with_panics_yes_error_panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/reopen_logging-ef065a07cff2f83f
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/support-bda6932c2520a778
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/write_logging-c0fc100eb25934a9
[INFO] [stderr]    Doc-tests fern
[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
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test src/builders.rs - builders::Dispatch (line 37) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 894) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::chain (line 190) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::into_shared (line 359) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 904) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::file (line 916) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stderr (line 1052) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::call (line 1121) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::writer (line 958) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level (line 214) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::writer (line 941) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::format (line 156) ... ok
[INFO] [stdout] test src/builders.rs - builders::Panic (line 710) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::filter (line 319) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stdout (line 1026) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::into_log (line 577) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level_for (line 245) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stdout (line 1019) ... ok
[INFO] [stdout] test src/lib.rs - log_file (line 257) ... ok
[INFO] [stdout] test src/lib.rs - (line 23) ... ok
[INFO] [stdout] test src/log_impl.rs - log_impl::FormatCallback (line 47) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::sender (line 1072) ... ok
[INFO] [stdout] test src/builders.rs - builders::Dispatch::level_for (line 259) ... ok
[INFO] [stdout] test src/builders.rs - builders::Panic (line 690) ... ok
[INFO] [stdout] test src/meta.rs - meta (line 6) ... ok
[INFO] [stdout] test src/builders.rs - builders::Output::stderr (line 1045) ... ok
[INFO] [stdout] test src/lib.rs - (line 140) ... ok
[INFO] [stdout] test src/log_impl.rs - log_impl::FormatCallback::finish (line 458) ... ok
[INFO] [stdout] test src/meta.rs - meta (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "723a2a03b0d434c82b806133e05257404a3f87e4f400564477a5c87474fea782", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "723a2a03b0d434c82b806133e05257404a3f87e4f400564477a5c87474fea782", kill_on_drop: false }`
[INFO] [stdout] 723a2a03b0d434c82b806133e05257404a3f87e4f400564477a5c87474fea782