[INFO] fetching crate slog-env-cfg 0.6.0...
[INFO] testing slog-env-cfg-0.6.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate slog-env-cfg 0.6.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate slog-env-cfg 0.6.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-env-cfg 0.6.0
[INFO] finished tweaking crates.io crate slog-env-cfg 0.6.0
[INFO] tweaked toml for crates.io crate slog-env-cfg 0.6.0 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate crates.io crate slog-env-cfg 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d398af046019332e13924cf539ce9ae542b820e1465fc82485404b8b2771392
[INFO] running `Command { std: "docker" "start" "-a" "4d398af046019332e13924cf539ce9ae542b820e1465fc82485404b8b2771392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d398af046019332e13924cf539ce9ae542b820e1465fc82485404b8b2771392", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d398af046019332e13924cf539ce9ae542b820e1465fc82485404b8b2771392", kill_on_drop: false }`
[INFO] [stdout] 4d398af046019332e13924cf539ce9ae542b820e1465fc82485404b8b2771392
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f61b68ee41a8b895ebeba76f8e310781bc1cd7206f4f3b54ef6b7af13873ba4
[INFO] running `Command { std: "docker" "start" "-a" "7f61b68ee41a8b895ebeba76f8e310781bc1cd7206f4f3b54ef6b7af13873ba4", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling arc-swap v0.3.11
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling slog-scope v4.1.2
[INFO] [stderr]    Compiling slog-async v2.3.0
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling crossbeam v0.7.2
[INFO] [stderr]    Compiling slog-stdlog v4.0.0
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling slog-term v2.4.1
[INFO] [stderr]    Compiling slog-envlogger v2.2.0
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling slog-json v2.3.0
[INFO] [stderr]    Compiling slog-env-cfg v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.52s
[INFO] running `Command { std: "docker" "inspect" "7f61b68ee41a8b895ebeba76f8e310781bc1cd7206f4f3b54ef6b7af13873ba4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f61b68ee41a8b895ebeba76f8e310781bc1cd7206f4f3b54ef6b7af13873ba4", kill_on_drop: false }`
[INFO] [stdout] 7f61b68ee41a8b895ebeba76f8e310781bc1cd7206f4f3b54ef6b7af13873ba4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1556cc6b6525f320896c891b6b6f53aaa259f929ce5b89767b5b65abab74348
[INFO] running `Command { std: "docker" "start" "-a" "a1556cc6b6525f320896c891b6b6f53aaa259f929ce5b89767b5b65abab74348", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling serial_test v0.2.0
[INFO] [stderr]    Compiling serial_test_derive v0.2.0
[INFO] [stderr]    Compiling slog-env-cfg v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.27s
[INFO] running `Command { std: "docker" "inspect" "a1556cc6b6525f320896c891b6b6f53aaa259f929ce5b89767b5b65abab74348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1556cc6b6525f320896c891b6b6f53aaa259f929ce5b89767b5b65abab74348", kill_on_drop: false }`
[INFO] [stdout] a1556cc6b6525f320896c891b6b6f53aaa259f929ce5b89767b5b65abab74348
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 434cae69b9dd69066fb63211258f645dc3626f6641fa3f4118cb1f4f46ff5324
[INFO] running `Command { std: "docker" "start" "-a" "434cae69b9dd69066fb63211258f645dc3626f6641fa3f4118cb1f4f46ff5324", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/slog_env_cfg-9ab4e9f608a98f64)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test config::build_test_json ... ok
[INFO] [stdout] test config_from_env::test::env_logger_filters_debug ... ok
[INFO] [stdout] test config_from_env::test::defaults ... ok
[INFO] [stdout] test config_from_env::test::env_logger_filters_empty ... ok
[INFO] [stdout] test config::build_test_terminal ... ok
[INFO] [stdout] test config_from_env::test::log_format_invalid ... ok
[INFO] [stdout] test config_from_env::test::log_format_empty ... ok
[INFO] [stdout] test config_from_env::test::log_format_json ... ok
[INFO] [stdout] test config_from_env::test::log_format_unset ... ok
[INFO] [stdout] test config_from_env::test::log_format_term ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slog-env-cfg
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 3) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "434cae69b9dd69066fb63211258f645dc3626f6641fa3f4118cb1f4f46ff5324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "434cae69b9dd69066fb63211258f645dc3626f6641fa3f4118cb1f4f46ff5324", kill_on_drop: false }`
[INFO] [stdout] 434cae69b9dd69066fb63211258f645dc3626f6641fa3f4118cb1f4f46ff5324