[INFO] fetching crate microbench 0.5.0...
[INFO] testing microbench-0.5.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate microbench 0.5.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate microbench 0.5.0 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 microbench 0.5.0
[INFO] finished tweaking crates.io crate microbench 0.5.0
[INFO] tweaked toml for crates.io crate microbench 0.5.0 written to /workspace/builds/worker-4/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] [stderr]     Blocking waiting for file lock on package cache
[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-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" "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] 383a4e81c32d8075cc7fc7d95d32d14cf55ce484151ccd525d3120e13deca259
[INFO] running `Command { std: "docker" "start" "-a" "383a4e81c32d8075cc7fc7d95d32d14cf55ce484151ccd525d3120e13deca259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "383a4e81c32d8075cc7fc7d95d32d14cf55ce484151ccd525d3120e13deca259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "383a4e81c32d8075cc7fc7d95d32d14cf55ce484151ccd525d3120e13deca259", kill_on_drop: false }`
[INFO] [stdout] 383a4e81c32d8075cc7fc7d95d32d14cf55ce484151ccd525d3120e13deca259
[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" "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] 2ac4a0d36882147f47027bf28aa60fce0e429b4233367b1653747f1a7679dd88
[INFO] running `Command { std: "docker" "start" "-a" "2ac4a0d36882147f47027bf28aa60fce0e429b4233367b1653747f1a7679dd88", kill_on_drop: false }`
[INFO] [stderr]    Compiling microbench v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "2ac4a0d36882147f47027bf28aa60fce0e429b4233367b1653747f1a7679dd88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ac4a0d36882147f47027bf28aa60fce0e429b4233367b1653747f1a7679dd88", kill_on_drop: false }`
[INFO] [stdout] 2ac4a0d36882147f47027bf28aa60fce0e429b4233367b1653747f1a7679dd88
[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" "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] 3a3bffca9392fa1fd0c5ed8136755faea3a453172bb32382d61cfe9215d101c2
[INFO] running `Command { std: "docker" "start" "-a" "3a3bffca9392fa1fd0c5ed8136755faea3a453172bb32382d61cfe9215d101c2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling microbench v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "3a3bffca9392fa1fd0c5ed8136755faea3a453172bb32382d61cfe9215d101c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a3bffca9392fa1fd0c5ed8136755faea3a453172bb32382d61cfe9215d101c2", kill_on_drop: false }`
[INFO] [stdout] 3a3bffca9392fa1fd0c5ed8136755faea3a453172bb32382d61cfe9215d101c2
[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" "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] 426d11891be57520f8ff7e43c945b354a88ea6f560703553cf5cdf6b655c8142
[INFO] running `Command { std: "docker" "start" "-a" "426d11891be57520f8ff7e43c945b354a88ea6f560703553cf5cdf6b655c8142", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/microbench-46b5d71234017c3e)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test statistics::tests::test_kahan ... ok
[INFO] [stdout] test statistics::tests::test_model ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests microbench
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 40) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 10.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "426d11891be57520f8ff7e43c945b354a88ea6f560703553cf5cdf6b655c8142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "426d11891be57520f8ff7e43c945b354a88ea6f560703553cf5cdf6b655c8142", kill_on_drop: false }`
[INFO] [stdout] 426d11891be57520f8ff7e43c945b354a88ea6f560703553cf5cdf6b655c8142