[INFO] fetching crate log_buffer 1.2.0...
[INFO] testing log_buffer-1.2.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate log_buffer 1.2.0 into /workspace/builds/worker-60/source
[INFO] validating manifest of crates.io crate log_buffer 1.2.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate log_buffer 1.2.0
[INFO] finished tweaking crates.io crate log_buffer 1.2.0
[INFO] tweaked toml for crates.io crate log_buffer 1.2.0 written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 361f47718d83d956f08820b21238932e1c613f5f400e1f61fa9e486b2ec718f0
[INFO] running `Command { std: "docker" "start" "-a" "361f47718d83d956f08820b21238932e1c613f5f400e1f61fa9e486b2ec718f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "361f47718d83d956f08820b21238932e1c613f5f400e1f61fa9e486b2ec718f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "361f47718d83d956f08820b21238932e1c613f5f400e1f61fa9e486b2ec718f0", kill_on_drop: false }`
[INFO] [stdout] 361f47718d83d956f08820b21238932e1c613f5f400e1f61fa9e486b2ec718f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 856478996fb83d2379f5a60d118f473a3842cb9f546e38a94e702d9acdd716ee
[INFO] running `Command { std: "docker" "start" "-a" "856478996fb83d2379f5a60d118f473a3842cb9f546e38a94e702d9acdd716ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling log_buffer v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "856478996fb83d2379f5a60d118f473a3842cb9f546e38a94e702d9acdd716ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "856478996fb83d2379f5a60d118f473a3842cb9f546e38a94e702d9acdd716ee", kill_on_drop: false }`
[INFO] [stdout] 856478996fb83d2379f5a60d118f473a3842cb9f546e38a94e702d9acdd716ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31deca9142e3346ebd54f8c10c3e2b36b977a6068f017322e452170553ef139c
[INFO] running `Command { std: "docker" "start" "-a" "31deca9142e3346ebd54f8c10c3e2b36b977a6068f017322e452170553ef139c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log_buffer v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "31deca9142e3346ebd54f8c10c3e2b36b977a6068f017322e452170553ef139c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31deca9142e3346ebd54f8c10c3e2b36b977a6068f017322e452170553ef139c", kill_on_drop: false }`
[INFO] [stdout] 31deca9142e3346ebd54f8c10c3e2b36b977a6068f017322e452170553ef139c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 727a48092d204514b5b0536b002f2d63949d90e375f70588245cd77216af7d56
[INFO] running `Command { std: "docker" "start" "-a" "727a48092d204514b5b0536b002f2d63949d90e375f70588245cd77216af7d56", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/log_buffer-1537c8f80be30d89)
[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/log_buffer.rs (/opt/rustwide/target/debug/deps/log_buffer-eba10e1e43f91d4f)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test basic ... ok
[INFO] [stdout] test cut_off_utf8 ... ok
[INFO] [stdout] test exhaustive ... ok
[INFO] [stdout] test lines ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests log_buffer
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] test src/lib.rs - (line 38) ... ok
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "727a48092d204514b5b0536b002f2d63949d90e375f70588245cd77216af7d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "727a48092d204514b5b0536b002f2d63949d90e375f70588245cd77216af7d56", kill_on_drop: false }`
[INFO] [stdout] 727a48092d204514b5b0536b002f2d63949d90e375f70588245cd77216af7d56