[INFO] fetching crate micrologger 0.1.0...
[INFO] testing micrologger-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate micrologger 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate micrologger 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate micrologger 0.1.0
[INFO] finished tweaking crates.io crate micrologger 0.1.0
[INFO] tweaked toml for crates.io crate micrologger 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c4a71e9ced680e9d20d18920bcd1f097b4d692ef43d8ac7a1331b6b9f6975058
[INFO] running `Command { std: "docker" "start" "-a" "c4a71e9ced680e9d20d18920bcd1f097b4d692ef43d8ac7a1331b6b9f6975058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4a71e9ced680e9d20d18920bcd1f097b4d692ef43d8ac7a1331b6b9f6975058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4a71e9ced680e9d20d18920bcd1f097b4d692ef43d8ac7a1331b6b9f6975058", kill_on_drop: false }`
[INFO] [stdout] c4a71e9ced680e9d20d18920bcd1f097b4d692ef43d8ac7a1331b6b9f6975058
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5369cbe9fc73368e39673e46972e90592cbe1905e7e8437ca19264a8ec98fc56
[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" "5369cbe9fc73368e39673e46972e90592cbe1905e7e8437ca19264a8ec98fc56", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling micrologger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.41s
[INFO] running `Command { std: "docker" "inspect" "5369cbe9fc73368e39673e46972e90592cbe1905e7e8437ca19264a8ec98fc56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5369cbe9fc73368e39673e46972e90592cbe1905e7e8437ca19264a8ec98fc56", kill_on_drop: false }`
[INFO] [stdout] 5369cbe9fc73368e39673e46972e90592cbe1905e7e8437ca19264a8ec98fc56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c63e2a9ece1521779e344f133a90f3197c00472e0f6597a644b040393e4877a
[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" "8c63e2a9ece1521779e344f133a90f3197c00472e0f6597a644b040393e4877a", kill_on_drop: false }`
[INFO] [stderr]    Compiling micrologger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "8c63e2a9ece1521779e344f133a90f3197c00472e0f6597a644b040393e4877a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c63e2a9ece1521779e344f133a90f3197c00472e0f6597a644b040393e4877a", kill_on_drop: false }`
[INFO] [stdout] 8c63e2a9ece1521779e344f133a90f3197c00472e0f6597a644b040393e4877a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ec4f248c9b0d0bcb1d1944a8d2bb6d323e4811422dc07375b87e63c2804261e5
[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" "ec4f248c9b0d0bcb1d1944a8d2bb6d323e4811422dc07375b87e63c2804261e5", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/micrologger-424ab38acf25a382
[INFO] [stdout] test test::it_can_decode_log_entries ... ok
[INFO] [stdout] test test::it_formats_log_messages_correctly ... ok
[INFO] [stderr]    Doc-tests micrologger
[INFO] [stdout] test test::it_can_handle_a_custom_formatter ... ok
[INFO] [stdout] test test::it_logs_a_message ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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] running `Command { std: "docker" "inspect" "ec4f248c9b0d0bcb1d1944a8d2bb6d323e4811422dc07375b87e63c2804261e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec4f248c9b0d0bcb1d1944a8d2bb6d323e4811422dc07375b87e63c2804261e5", kill_on_drop: false }`
[INFO] [stdout] ec4f248c9b0d0bcb1d1944a8d2bb6d323e4811422dc07375b87e63c2804261e5