[INFO] fetching crate randomforest 0.1.6...
[INFO] testing randomforest-0.1.6 against 1.55.0 for beta-1.56-1
[INFO] extracting crate randomforest 0.1.6 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate randomforest 0.1.6 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 randomforest 0.1.6
[INFO] finished tweaking crates.io crate randomforest 0.1.6
[INFO] tweaked toml for crates.io crate randomforest 0.1.6 written to /workspace/builds/worker-7/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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 57a2e889fb7ef3634b813d5c37bc56aeeb7febc17abf00acc634b05473eba31e
[INFO] running `Command { std: "docker" "start" "-a" "57a2e889fb7ef3634b813d5c37bc56aeeb7febc17abf00acc634b05473eba31e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57a2e889fb7ef3634b813d5c37bc56aeeb7febc17abf00acc634b05473eba31e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57a2e889fb7ef3634b813d5c37bc56aeeb7febc17abf00acc634b05473eba31e", kill_on_drop: false }`
[INFO] [stdout] 57a2e889fb7ef3634b813d5c37bc56aeeb7febc17abf00acc634b05473eba31e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 6a898960420cc03e96b3f77ae7d260222d8cf1b090f357f28d4bad225b47bdda
[INFO] running `Command { std: "docker" "start" "-a" "6a898960420cc03e96b3f77ae7d260222d8cf1b090f357f28d4bad225b47bdda", kill_on_drop: false }`
[INFO] [stderr]    Compiling ordered-float v2.8.0
[INFO] [stderr]    Compiling randomforest v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "6a898960420cc03e96b3f77ae7d260222d8cf1b090f357f28d4bad225b47bdda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a898960420cc03e96b3f77ae7d260222d8cf1b090f357f28d4bad225b47bdda", kill_on_drop: false }`
[INFO] [stdout] 6a898960420cc03e96b3f77ae7d260222d8cf1b090f357f28d4bad225b47bdda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] fc863ad0b166abb1eac02b8692dbe6882df8d2ed59a1830bbb54a5142e331c22
[INFO] running `Command { std: "docker" "start" "-a" "fc863ad0b166abb1eac02b8692dbe6882df8d2ed59a1830bbb54a5142e331c22", kill_on_drop: false }`
[INFO] [stderr]    Compiling randomforest v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.62s
[INFO] running `Command { std: "docker" "inspect" "fc863ad0b166abb1eac02b8692dbe6882df8d2ed59a1830bbb54a5142e331c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc863ad0b166abb1eac02b8692dbe6882df8d2ed59a1830bbb54a5142e331c22", kill_on_drop: false }`
[INFO] [stdout] fc863ad0b166abb1eac02b8692dbe6882df8d2ed59a1830bbb54a5142e331c22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 9960c0d27724d1b42c648240588ed177e5e5885e0bc760f536c82a63ef0282e6
[INFO] running `Command { std: "docker" "start" "-a" "9960c0d27724d1b42c648240588ed177e5e5885e0bc760f536c82a63ef0282e6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/randomforest-86ffd007d957bf1b)
[INFO] [stdout] running 9 tests
[INFO] [stdout] test decision_tree::tests::regression_works ... ok
[INFO] [stdout] test criterion::tests::gini_works ... ok
[INFO] [stdout] test table::tests::error_check_works ... ok
[INFO] [stdout] test criterion::tests::entropy_works ... ok
[INFO] [stdout] test table::tests::filter_works ... ok
[INFO] [stdout] test criterion::tests::mse_works ... ok
[INFO] [stdout] test table::tests::train_test_split_works ... ok
[INFO] [stdout] test random_forest::regressor::tests::regression_works ... ok
[INFO] [stdout] test random_forest::classifier::tests::classification_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests randomforest
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9960c0d27724d1b42c648240588ed177e5e5885e0bc760f536c82a63ef0282e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9960c0d27724d1b42c648240588ed177e5e5885e0bc760f536c82a63ef0282e6", kill_on_drop: false }`
[INFO] [stdout] 9960c0d27724d1b42c648240588ed177e5e5885e0bc760f536c82a63ef0282e6