[INFO] fetching crate simplers_optimization 0.4.2...
[INFO] testing simplers_optimization-0.4.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate simplers_optimization 0.4.2 into /workspace/builds/worker-85/source
[INFO] validating manifest of crates.io crate simplers_optimization 0.4.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simplers_optimization 0.4.2
[INFO] finished tweaking crates.io crate simplers_optimization 0.4.2
[INFO] tweaked toml for crates.io crate simplers_optimization 0.4.2 written to /workspace/builds/worker-85/source/Cargo.toml
[INFO] crate crates.io crate simplers_optimization 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ordered-float v2.0.0
[INFO] [stderr]   Downloaded priority-queue v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08d831fbbb1ab76856641a98e636b0641576ce35a598b47a2989277745eb1f7c
[INFO] running `Command { std: "docker" "start" "-a" "08d831fbbb1ab76856641a98e636b0641576ce35a598b47a2989277745eb1f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08d831fbbb1ab76856641a98e636b0641576ce35a598b47a2989277745eb1f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08d831fbbb1ab76856641a98e636b0641576ce35a598b47a2989277745eb1f7c", kill_on_drop: false }`
[INFO] [stdout] 08d831fbbb1ab76856641a98e636b0641576ce35a598b47a2989277745eb1f7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] deaab2460a437e3ec6d5426258617032a0cfc754357a6d78b0f5a060dbdb316e
[INFO] running `Command { std: "docker" "start" "-a" "deaab2460a437e3ec6d5426258617032a0cfc754357a6d78b0f5a060dbdb316e", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling priority-queue v1.0.1
[INFO] [stderr]    Compiling ordered-float v2.0.0
[INFO] [stderr]    Compiling simplers_optimization v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.26s
[INFO] running `Command { std: "docker" "inspect" "deaab2460a437e3ec6d5426258617032a0cfc754357a6d78b0f5a060dbdb316e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deaab2460a437e3ec6d5426258617032a0cfc754357a6d78b0f5a060dbdb316e", kill_on_drop: false }`
[INFO] [stdout] deaab2460a437e3ec6d5426258617032a0cfc754357a6d78b0f5a060dbdb316e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 213e7ea2c69106ffb8487cd172653d710bbb450b910a62303d9c4ead7b0e2dc7
[INFO] running `Command { std: "docker" "start" "-a" "213e7ea2c69106ffb8487cd172653d710bbb450b910a62303d9c4ead7b0e2dc7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling simplers_optimization v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "213e7ea2c69106ffb8487cd172653d710bbb450b910a62303d9c4ead7b0e2dc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "213e7ea2c69106ffb8487cd172653d710bbb450b910a62303d9c4ead7b0e2dc7", kill_on_drop: false }`
[INFO] [stdout] 213e7ea2c69106ffb8487cd172653d710bbb450b910a62303d9c4ead7b0e2dc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7b9f4d7bafb19992b518c395fae9e2c7f9b704634251e6284261172ffda63dad
[INFO] running `Command { std: "docker" "start" "-a" "7b9f4d7bafb19992b518c395fae9e2c7f9b704634251e6284261172ffda63dad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/simplers_optimization-bd7d9306647b6f56)
[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 unittests (/opt/rustwide/target/debug/deps/simplers_optimization-9624db07090a8d53)
[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]    Doc-tests simplers_optimization
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/algorithm.rs - algorithm::Optimizer::set_exploration_depth (line 93) ... ok
[INFO] [stdout] test src/algorithm.rs - algorithm::Optimizer::new (line 31) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/algorithm.rs - algorithm::Optimizer::maximize (line 125) ... ok
[INFO] [stdout] test src/algorithm.rs - algorithm::Optimizer::minimize (line 152) ... ok
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.26s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7b9f4d7bafb19992b518c395fae9e2c7f9b704634251e6284261172ffda63dad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b9f4d7bafb19992b518c395fae9e2c7f9b704634251e6284261172ffda63dad", kill_on_drop: false }`
[INFO] [stdout] 7b9f4d7bafb19992b518c395fae9e2c7f9b704634251e6284261172ffda63dad