[INFO] fetching crate hotmic 0.8.2...
[INFO] testing hotmic-0.8.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate hotmic 0.8.2 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate hotmic 0.8.2 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 hotmic 0.8.2
[INFO] finished tweaking crates.io crate hotmic 0.8.2
[INFO] tweaked toml for crates.io crate hotmic 0.8.2 written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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] 8a512aa81f493b6bd212fd20773ad14ca4168172e37141eb04fae2ef47b824fe
[INFO] running `Command { std: "docker" "start" "-a" "8a512aa81f493b6bd212fd20773ad14ca4168172e37141eb04fae2ef47b824fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a512aa81f493b6bd212fd20773ad14ca4168172e37141eb04fae2ef47b824fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a512aa81f493b6bd212fd20773ad14ca4168172e37141eb04fae2ef47b824fe", kill_on_drop: false }`
[INFO] [stdout] 8a512aa81f493b6bd212fd20773ad14ca4168172e37141eb04fae2ef47b824fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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] e9731ce2c8c16b403d7d9878a11da153bef2b0029dfd1370cea9540cd6f85624
[INFO] running `Command { std: "docker" "start" "-a" "e9731ce2c8c16b403d7d9878a11da153bef2b0029dfd1370cea9540cd6f85624", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling quanta v0.2.0
[INFO] [stderr]    Compiling flate2 v1.0.21
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling hdrhistogram v6.3.4
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]    Compiling hotmic v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "e9731ce2c8c16b403d7d9878a11da153bef2b0029dfd1370cea9540cd6f85624", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9731ce2c8c16b403d7d9878a11da153bef2b0029dfd1370cea9540cd6f85624", kill_on_drop: false }`
[INFO] [stdout] e9731ce2c8c16b403d7d9878a11da153bef2b0029dfd1370cea9540cd6f85624
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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] 67210468747d5e0439af5f86750e0a7310cd1cb98c5118d29709c2ab6e9098c6
[INFO] running `Command { std: "docker" "start" "-a" "67210468747d5e0439af5f86750e0a7310cd1cb98c5118d29709c2ab6e9098c6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling hotmic v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.25s
[INFO] running `Command { std: "docker" "inspect" "67210468747d5e0439af5f86750e0a7310cd1cb98c5118d29709c2ab6e9098c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67210468747d5e0439af5f86750e0a7310cd1cb98c5118d29709c2ab6e9098c6", kill_on_drop: false }`
[INFO] [stdout] 67210468747d5e0439af5f86750e0a7310cd1cb98c5118d29709c2ab6e9098c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-55/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] f965df3e62687f00455db71f0f96fe290ee97169a1c646422e7663ffcc9fbc87
[INFO] running `Command { std: "docker" "start" "-a" "f965df3e62687f00455db71f0f96fe290ee97169a1c646422e7663ffcc9fbc87", 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.67s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hotmic-d3508f38db29e5a1)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test data::counter::tests::test_counter_simple_update ... ok
[INFO] [stdout] test data::gauge::tests::test_gauge_simple_update ... ok
[INFO] [stdout] test data::snapshot::tests::test_percentiles ... ok
[INFO] [stdout] test data::snapshot::tests::test_snapshot_simple_set_and_get ... ok
[INFO] [stdout] test helper::tests::test_simple_duration_as_nanos ... ok
[INFO] [stdout] test data::snapshot::tests::test_snapshot_percentiles ... ok
[INFO] [stdout] test data::histogram::tests::test_histogram_complex_update ... ok
[INFO] [stdout] test data::histogram::tests::test_histogram_simple_update ... ok
[INFO] [stdout] test data::histogram::tests::test_windowed_histogram_rollover ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hotmic
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 46) ... ok
[INFO] [stdout] test src/lib.rs - (line 104) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.31s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f965df3e62687f00455db71f0f96fe290ee97169a1c646422e7663ffcc9fbc87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f965df3e62687f00455db71f0f96fe290ee97169a1c646422e7663ffcc9fbc87", kill_on_drop: false }`
[INFO] [stdout] f965df3e62687f00455db71f0f96fe290ee97169a1c646422e7663ffcc9fbc87