[INFO] fetching crate russell_stat 0.1.2...
[INFO] testing russell_stat-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate russell_stat 0.1.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate russell_stat 0.1.2 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 russell_stat 0.1.2
[INFO] finished tweaking crates.io crate russell_stat 0.1.2
[INFO] tweaked toml for crates.io crate russell_stat 0.1.2 written to /workspace/builds/worker-12/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] abd1d84a8dacb772a47f40f68b34b99c2b03637fddef038011b9d2fdd7a3e9db
[INFO] running `Command { std: "docker" "start" "-a" "abd1d84a8dacb772a47f40f68b34b99c2b03637fddef038011b9d2fdd7a3e9db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abd1d84a8dacb772a47f40f68b34b99c2b03637fddef038011b9d2fdd7a3e9db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abd1d84a8dacb772a47f40f68b34b99c2b03637fddef038011b9d2fdd7a3e9db", kill_on_drop: false }`
[INFO] [stdout] abd1d84a8dacb772a47f40f68b34b99c2b03637fddef038011b9d2fdd7a3e9db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 8eac20e72eb1c5a47594af79d5d76a8f42543900ca3007238baf1406294541b6
[INFO] running `Command { std: "docker" "start" "-a" "8eac20e72eb1c5a47594af79d5d76a8f42543900ca3007238baf1406294541b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling russell_chk v0.1.1
[INFO] [stderr]    Compiling russell_stat v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "8eac20e72eb1c5a47594af79d5d76a8f42543900ca3007238baf1406294541b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eac20e72eb1c5a47594af79d5d76a8f42543900ca3007238baf1406294541b6", kill_on_drop: false }`
[INFO] [stdout] 8eac20e72eb1c5a47594af79d5d76a8f42543900ca3007238baf1406294541b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] ba71dc4e2708fbb30f4dfcb9bc0f93e762d5033e1eec052ba108244731a4c7cd
[INFO] running `Command { std: "docker" "start" "-a" "ba71dc4e2708fbb30f4dfcb9bc0f93e762d5033e1eec052ba108244731a4c7cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling russell_stat v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "ba71dc4e2708fbb30f4dfcb9bc0f93e762d5033e1eec052ba108244731a4c7cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba71dc4e2708fbb30f4dfcb9bc0f93e762d5033e1eec052ba108244731a4c7cd", kill_on_drop: false }`
[INFO] [stdout] ba71dc4e2708fbb30f4dfcb9bc0f93e762d5033e1eec052ba108244731a4c7cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] aefb10631f9ab1e3172718ffff9017da24c00941ce53151678e9a003af5f8fd5
[INFO] running `Command { std: "docker" "start" "-a" "aefb10631f9ab1e3172718ffff9017da24c00941ce53151678e9a003af5f8fd5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/russell_stat-2e19f106a1a09647)
[INFO] [stdout] running 4 tests
[INFO] [stdout] test histogram::tests::histogram_new_works ... ok
[INFO] [stdout] test stat::tests::ave_dev_works ... ok
[INFO] [stdout] test stat::tests::ave_works ... ok
[INFO] [stdout] test stat::tests::ave_returns_error_on_empty_slice - should panic ... 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] [stderr]    Doc-tests russell_stat
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/stat.rs - stat::ave_dev (line 27) ... ok
[INFO] [stdout] test src/stat.rs - stat::ave (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "aefb10631f9ab1e3172718ffff9017da24c00941ce53151678e9a003af5f8fd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aefb10631f9ab1e3172718ffff9017da24c00941ce53151678e9a003af5f8fd5", kill_on_drop: false }`
[INFO] [stdout] aefb10631f9ab1e3172718ffff9017da24c00941ce53151678e9a003af5f8fd5