[INFO] fetching crate bare-metrics-core 0.1.0...
[INFO] testing bare-metrics-core-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate bare-metrics-core 0.1.0 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate bare-metrics-core 0.1.0 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 bare-metrics-core 0.1.0
[INFO] finished tweaking crates.io crate bare-metrics-core 0.1.0
[INFO] tweaked toml for crates.io crate bare-metrics-core 0.1.0 written to /workspace/builds/worker-23/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-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] 2bd6ffb88451130b61a64825d418dbaea4194118653f8e2705a81250c8cbaf81
[INFO] running `Command { std: "docker" "start" "-a" "2bd6ffb88451130b61a64825d418dbaea4194118653f8e2705a81250c8cbaf81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bd6ffb88451130b61a64825d418dbaea4194118653f8e2705a81250c8cbaf81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bd6ffb88451130b61a64825d418dbaea4194118653f8e2705a81250c8cbaf81", kill_on_drop: false }`
[INFO] [stdout] 2bd6ffb88451130b61a64825d418dbaea4194118653f8e2705a81250c8cbaf81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] f538ea9fd1c377e2a069e39e6658a889e8e39cbb8381a0223bc9bbeff3229e41
[INFO] running `Command { std: "docker" "start" "-a" "f538ea9fd1c377e2a069e39e6658a889e8e39cbb8381a0223bc9bbeff3229e41", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling serde_bare v0.5.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling hdrhistogram v7.5.0
[INFO] [stderr]    Compiling bare-metrics-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.93s
[INFO] running `Command { std: "docker" "inspect" "f538ea9fd1c377e2a069e39e6658a889e8e39cbb8381a0223bc9bbeff3229e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f538ea9fd1c377e2a069e39e6658a889e8e39cbb8381a0223bc9bbeff3229e41", kill_on_drop: false }`
[INFO] [stdout] f538ea9fd1c377e2a069e39e6658a889e8e39cbb8381a0223bc9bbeff3229e41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] 54460dd2d3e33f80962a7d236533e44c011c18bc81375f8b6e7c566d9acd5268
[INFO] running `Command { std: "docker" "start" "-a" "54460dd2d3e33f80962a7d236533e44c011c18bc81375f8b6e7c566d9acd5268", kill_on_drop: false }`
[INFO] [stderr]    Compiling bare-metrics-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "54460dd2d3e33f80962a7d236533e44c011c18bc81375f8b6e7c566d9acd5268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54460dd2d3e33f80962a7d236533e44c011c18bc81375f8b6e7c566d9acd5268", kill_on_drop: false }`
[INFO] [stdout] 54460dd2d3e33f80962a7d236533e44c011c18bc81375f8b6e7c566d9acd5268
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] 4f899e706b3add929a1f9293b8895babef428f1736b8291ec95c6289a663093b
[INFO] running `Command { std: "docker" "start" "-a" "4f899e706b3add929a1f9293b8895babef428f1736b8291ec95c6289a663093b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bare_metrics_core-4e627a4954bdb022)
[INFO] [stderr]    Doc-tests bare-metrics-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] [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" "4f899e706b3add929a1f9293b8895babef428f1736b8291ec95c6289a663093b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f899e706b3add929a1f9293b8895babef428f1736b8291ec95c6289a663093b", kill_on_drop: false }`
[INFO] [stdout] 4f899e706b3add929a1f9293b8895babef428f1736b8291ec95c6289a663093b