[INFO] fetching crate kurobako 0.2.9...
[INFO] testing kurobako-0.2.9 against 1.55.0 for beta-1.56-2
[INFO] extracting crate kurobako 0.2.9 into /workspace/builds/worker-32/source
[INFO] validating manifest of crates.io crate kurobako 0.2.9 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 kurobako 0.2.9
[INFO] finished tweaking crates.io crate kurobako 0.2.9
[INFO] tweaked toml for crates.io crate kurobako 0.2.9 written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] crate crates.io crate kurobako 0.2.9 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 nasbench v0.1.2
[INFO] [stderr]   Downloaded kurobako_solvers v0.2.1
[INFO] [stderr]   Downloaded ordered-float v2.1.1
[INFO] [stderr]   Downloaded bytecodec v0.4.13
[INFO] [stderr]   Downloaded yamakan v0.2.0
[INFO] [stderr]   Downloaded kurobako_core v0.1.11
[INFO] [stderr]   Downloaded kurobako_problems v0.1.13
[INFO] [stderr]   Downloaded rustats v0.1.2
[INFO] [stderr]   Downloaded protobuf_codec v0.2.8
[INFO] [stderr]   Downloaded randomforest v0.1.6
[INFO] [stderr]   Downloaded hdf5file v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] e66d3a5fa4d3682a55c58b8b60fd38e83a1dc2b186253eb6d719bffeebc0630b
[INFO] running `Command { std: "docker" "start" "-a" "e66d3a5fa4d3682a55c58b8b60fd38e83a1dc2b186253eb6d719bffeebc0630b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e66d3a5fa4d3682a55c58b8b60fd38e83a1dc2b186253eb6d719bffeebc0630b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e66d3a5fa4d3682a55c58b8b60fd38e83a1dc2b186253eb6d719bffeebc0630b", kill_on_drop: false }`
[INFO] [stdout] e66d3a5fa4d3682a55c58b8b60fd38e83a1dc2b186253eb6d719bffeebc0630b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] 33fc280a9402c83a4a97267653a31b81ee2c7409939c49209a02daaf3829fa52
[INFO] running `Command { std: "docker" "start" "-a" "33fc280a9402c83a4a97267653a31b81ee2c7409939c49209a02daaf3829fa52", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling base64 v0.11.0
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling number_prefix v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling terminal_size v0.1.16
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling bstr v0.2.15
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rlua v0.17.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling console v0.14.0
[INFO] [stderr]    Compiling sha2 v0.9.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling ordered-float v2.1.1
[INFO] [stderr]    Compiling rand_distr v0.3.0
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling indicatif v0.15.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rustats v0.1.2
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling trackable_derive v0.1.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling trackable v0.2.23
[INFO] [stderr]    Compiling bytecodec v0.4.13
[INFO] [stderr]    Compiling hdf5file v0.1.1
[INFO] [stderr]    Compiling yamakan v0.2.0
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling randomforest v0.1.6
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling protobuf_codec v0.2.8
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling kurobako_core v0.1.11
[INFO] [stderr]    Compiling nasbench v0.1.2
[INFO] [stderr]    Compiling kurobako_problems v0.1.13
[INFO] [stderr]    Compiling kurobako_solvers v0.2.1
[INFO] [stderr]    Compiling kurobako v0.2.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "33fc280a9402c83a4a97267653a31b81ee2c7409939c49209a02daaf3829fa52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33fc280a9402c83a4a97267653a31b81ee2c7409939c49209a02daaf3829fa52", kill_on_drop: false }`
[INFO] [stdout] 33fc280a9402c83a4a97267653a31b81ee2c7409939c49209a02daaf3829fa52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] e86a663f90fc7306c706fe12a3a1e4e3de19908baa1c19966754a9aad5baa7e9
[INFO] running `Command { std: "docker" "start" "-a" "e86a663f90fc7306c706fe12a3a1e4e3de19908baa1c19966754a9aad5baa7e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling kurobako v0.2.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.91s
[INFO] running `Command { std: "docker" "inspect" "e86a663f90fc7306c706fe12a3a1e4e3de19908baa1c19966754a9aad5baa7e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e86a663f90fc7306c706fe12a3a1e4e3de19908baa1c19966754a9aad5baa7e9", kill_on_drop: false }`
[INFO] [stdout] e86a663f90fc7306c706fe12a3a1e4e3de19908baa1c19966754a9aad5baa7e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] fa5ce07ae8c729294488e7ee88d0be42bae1a96da6124289bff1934cdeae9734
[INFO] running `Command { std: "docker" "start" "-a" "fa5ce07ae8c729294488e7ee88d0be42bae1a96da6124289bff1934cdeae9734", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kurobako-ef6a6f331e5bc4db)
[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/kurobako-a84a5d48aff0e5d1)
[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 kurobako
[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] running `Command { std: "docker" "inspect" "fa5ce07ae8c729294488e7ee88d0be42bae1a96da6124289bff1934cdeae9734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa5ce07ae8c729294488e7ee88d0be42bae1a96da6124289bff1934cdeae9734", kill_on_drop: false }`
[INFO] [stdout] fa5ce07ae8c729294488e7ee88d0be42bae1a96da6124289bff1934cdeae9734