[INFO] fetching crate mtlog-core 0.2.0...
[INFO] testing mtlog-core-0.2.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate mtlog-core 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate mtlog-core 0.2.0
[INFO] finished tweaking crates.io crate mtlog-core 0.2.0
[INFO] tweaked toml for crates.io crate mtlog-core 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mtlog-core 0.2.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mtlog-core 0.2.0 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_from_env_proc v1.0.1
[INFO] [stderr]   Downloaded derive_from_env v1.0.1
[INFO] [stderr]   Downloaded cc v1.2.50
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfdadb7e80d04db538230c6d814f381391a7d43cf09ecfb07396344478452154
[INFO] running `Command { std: "docker" "start" "-a" "cfdadb7e80d04db538230c6d814f381391a7d43cf09ecfb07396344478452154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfdadb7e80d04db538230c6d814f381391a7d43cf09ecfb07396344478452154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfdadb7e80d04db538230c6d814f381391a7d43cf09ecfb07396344478452154", kill_on_drop: false }`
[INFO] [stdout] cfdadb7e80d04db538230c6d814f381391a7d43cf09ecfb07396344478452154
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 775056765d728da2c4c7ea78e07a2756927726dea23688b1871802a0e604c21e
[INFO] running `Command { std: "docker" "start" "-a" "775056765d728da2c4c7ea78e07a2756927726dea23688b1871802a0e604c21e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling colored v3.0.0
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling uuid v1.19.0
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling darling_macro v0.23.0
[INFO] [stderr]    Compiling darling v0.23.0
[INFO] [stderr]    Compiling derive_from_env_proc v1.0.1
[INFO] [stderr]    Compiling derive_from_env v1.0.1
[INFO] [stderr]    Compiling mtlog-core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.72s
[INFO] running `Command { std: "docker" "inspect" "775056765d728da2c4c7ea78e07a2756927726dea23688b1871802a0e604c21e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "775056765d728da2c4c7ea78e07a2756927726dea23688b1871802a0e604c21e", kill_on_drop: false }`
[INFO] [stdout] 775056765d728da2c4c7ea78e07a2756927726dea23688b1871802a0e604c21e
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8caa13aeb4bb3b6ef4db9c5372a08a4895130f9851d5d71afcff5a48e337f45
[INFO] running `Command { std: "docker" "start" "-a" "b8caa13aeb4bb3b6ef4db9c5372a08a4895130f9851d5d71afcff5a48e337f45", kill_on_drop: false }`
[INFO] [stderr]    Compiling mtlog-core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "b8caa13aeb4bb3b6ef4db9c5372a08a4895130f9851d5d71afcff5a48e337f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8caa13aeb4bb3b6ef4db9c5372a08a4895130f9851d5d71afcff5a48e337f45", kill_on_drop: false }`
[INFO] [stdout] b8caa13aeb4bb3b6ef4db9c5372a08a4895130f9851d5d71afcff5a48e337f45
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f4e52178ec97d1c1b9ebc07b63db33ff1a25040d73f05c86918c1829db8e6322
[INFO] running `Command { std: "docker" "start" "-a" "f4e52178ec97d1c1b9ebc07b63db33ff1a25040d73f05c86918c1829db8e6322", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mtlog_core-7e62fc85af94e6f4)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test log_rotation::tests::test_file_logger_enum_delegates ... ok
[INFO] [stdout] test log_rotation::tests::test_integration_spawn_log_thread_with_size_rotation ... ok
[INFO] [stdout] test log_rotation::tests::test_multiple_progress_bars_migration ... ok
[INFO] [stdout] test log_rotation::tests::test_size_rotation_lines_trigger_first ... ok
[INFO] [stdout] test log_rotation::tests::test_size_rotation_cleanup_max_files ... ok
[INFO] [stdout] test log_rotation::tests::test_size_rotation_progress_bar_migration ... ok
[INFO] [stdout] test log_rotation::tests::test_validation_no_rotation_trigger ... ok
[INFO] [stdout] test log_rotation::tests::test_validation_size_rotation_file_size ... ok
[INFO] [stdout] test log_rotation::tests::test_size_rotation_by_lines ... ok
[INFO] [stdout] test log_rotation::tests::test_validation_size_rotation_max_lines ... ok
[INFO] [stdout] test log_rotation::tests::test_validation_size_rotation_max_files ... ok
[INFO] [stdout] test log_rotation::tests::test_validation_time_rotation_duration ... ok
[INFO] [stdout] test log_writer::tests::test_log_file ... ok
[INFO] [stdout] test log_rotation::tests::test_finished_prevents_migration ... ok
[INFO] [stdout] test log_writer::tests::test_log_stdout ... ok
[INFO] [stdout] test log_rotation::tests::test_size_rotation_by_file_size ... ok
[INFO] [stdout] test log_rotation::tests::test_progress_bar_migration_on_rotation ... ok
[INFO] [stdout] test log_rotation::tests::test_time_rotation_cleanup ... ok
[INFO] [stdout] test log_rotation::tests::test_size_rotation_bytes_trigger_first ... ok
[INFO] [stdout] test log_rotation::tests::test_time_rotation_creates_multiple_files ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mtlog_core
[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] running `Command { std: "docker" "inspect" "f4e52178ec97d1c1b9ebc07b63db33ff1a25040d73f05c86918c1829db8e6322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4e52178ec97d1c1b9ebc07b63db33ff1a25040d73f05c86918c1829db8e6322", kill_on_drop: false }`
[INFO] [stdout] f4e52178ec97d1c1b9ebc07b63db33ff1a25040d73f05c86918c1829db8e6322