[INFO] fetching crate simple_optimization 0.10.0...
[INFO] testing simple_optimization-0.10.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate simple_optimization 0.10.0 into /workspace/builds/worker-55/source
[INFO] validating manifest of crates.io crate simple_optimization 0.10.0 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 simple_optimization 0.10.0
[INFO] finished tweaking crates.io crate simple_optimization 0.10.0
[INFO] tweaked toml for crates.io crate simple_optimization 0.10.0 written to /workspace/builds/worker-55/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+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] 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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0653013d2a016166b4860a49c35feef364af77d425c0e6d8f99b950587c2053
[INFO] running `Command { std: "docker" "start" "-a" "f0653013d2a016166b4860a49c35feef364af77d425c0e6d8f99b950587c2053", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0653013d2a016166b4860a49c35feef364af77d425c0e6d8f99b950587c2053", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0653013d2a016166b4860a49c35feef364af77d425c0e6d8f99b950587c2053", kill_on_drop: false }`
[INFO] [stdout] f0653013d2a016166b4860a49c35feef364af77d425c0e6d8f99b950587c2053
[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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b6f890076431d970925b0bfe9371263d96299d9faece30f8bb74d5d89ba226d
[INFO] running `Command { std: "docker" "start" "-a" "9b6f890076431d970925b0bfe9371263d96299d9faece30f8bb74d5d89ba226d", 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]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling print_duration v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rand_distr v0.4.1
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling simple_optimization v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.37s
[INFO] running `Command { std: "docker" "inspect" "9b6f890076431d970925b0bfe9371263d96299d9faece30f8bb74d5d89ba226d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b6f890076431d970925b0bfe9371263d96299d9faece30f8bb74d5d89ba226d", kill_on_drop: false }`
[INFO] [stdout] 9b6f890076431d970925b0bfe9371263d96299d9faece30f8bb74d5d89ba226d
[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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dde15c9b68ad15cd3cd3e90c2aa788d66622f7e6a282d971f66525aa69adc3fe
[INFO] running `Command { std: "docker" "start" "-a" "dde15c9b68ad15cd3cd3e90c2aa788d66622f7e6a282d971f66525aa69adc3fe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling simple_optimization v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 25.74s
[INFO] running `Command { std: "docker" "inspect" "dde15c9b68ad15cd3cd3e90c2aa788d66622f7e6a282d971f66525aa69adc3fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dde15c9b68ad15cd3cd3e90c2aa788d66622f7e6a282d971f66525aa69adc3fe", kill_on_drop: false }`
[INFO] [stdout] dde15c9b68ad15cd3cd3e90c2aa788d66622f7e6a282d971f66525aa69adc3fe
[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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6c69ea7741f971608a819c353160653be9d2db35d35dd4a847304e745b67a924
[INFO] running `Command { std: "docker" "start" "-a" "6c69ea7741f971608a819c353160653be9d2db35d35dd4a847304e745b67a924", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/simple_optimization-7147d58c2424ed60)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-3173acd5ead0d9c2)
[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 15 tests
[INFO] [stdout] test tests::grid_search_complex ... ok
[INFO] [stdout] test tests::grid_search_simple ... ok
[INFO] [stdout] test tests::grid_search_complex_u8 ... ok
[INFO] [stdout] test tests::grid_search_simple_u8 ... ok
[INFO] [stdout] test tests::random_search_simple ... ok
[INFO] [stdout] test tests::random_search_complex_u8 ... ok
[INFO] [stdout] test tests::random_search_boundary ... ok
[INFO] [stdout] test tests::random_search_complex ... ok
[INFO] [stdout] test tests::random_search_simple_u8 ... ok
[INFO] [stdout] test tests::grid_search_boundary has been running for over 60 seconds
[INFO] [stdout] test tests::simulated_annealing_boundary has been running for over 60 seconds
[INFO] [stdout] test tests::simulated_annealing_complex has been running for over 60 seconds
[INFO] [stdout] test tests::simulated_annealing_complex_u8 has been running for over 60 seconds
[INFO] [stdout] test tests::simulated_annealing_simple has been running for over 60 seconds
[INFO] [stdout] test tests::simulated_annealing_simple_u8 has been running for over 60 seconds
[INFO] [stdout] test tests::simulated_annealing_simple_u8 ... ok
[INFO] [stdout] test tests::simulated_annealing_simple ... ok
[INFO] [stdout] test tests::grid_search_boundary ... ok
[INFO] [stdout] test tests::simulated_annealing_complex ... ok
[INFO] [stdout] test tests::simulated_annealing_complex_u8 ... ok
[INFO] [stdout] test tests::simulated_annealing_boundary ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 66.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests simple_optimization
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 17) ... ignored
[INFO] [stdout] test src/random_search.rs - random_search::random_search (line 19) ... ok
[INFO] [stdout] test src/grid_search.rs - grid_search::grid_search (line 24) ... ok
[INFO] [stdout] test src/simulated_annealing.rs - simulated_annealing::simulated_annealing (line 49) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.92s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6c69ea7741f971608a819c353160653be9d2db35d35dd4a847304e745b67a924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c69ea7741f971608a819c353160653be9d2db35d35dd4a847304e745b67a924", kill_on_drop: false }`
[INFO] [stdout] 6c69ea7741f971608a819c353160653be9d2db35d35dd4a847304e745b67a924