[INFO] fetching crate libmf 0.1.1...
[INFO] testing libmf-0.1.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate libmf 0.1.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate libmf 0.1.1 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 libmf 0.1.1
[INFO] finished tweaking crates.io crate libmf 0.1.1
[INFO] tweaked toml for crates.io crate libmf 0.1.1 written to /workspace/builds/worker-11/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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 132a9e3dce2ba6dfb46ec2447c658e982f4e6efe88758a603f2cfbd1877c7a74
[INFO] running `Command { std: "docker" "start" "-a" "132a9e3dce2ba6dfb46ec2447c658e982f4e6efe88758a603f2cfbd1877c7a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "132a9e3dce2ba6dfb46ec2447c658e982f4e6efe88758a603f2cfbd1877c7a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "132a9e3dce2ba6dfb46ec2447c658e982f4e6efe88758a603f2cfbd1877c7a74", kill_on_drop: false }`
[INFO] [stdout] 132a9e3dce2ba6dfb46ec2447c658e982f4e6efe88758a603f2cfbd1877c7a74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 4d4c9c0b5026030bdd2459da2cfd58c0ac7c4b62b047fa85eaefdcba7641040d
[INFO] running `Command { std: "docker" "start" "-a" "4d4c9c0b5026030bdd2459da2cfd58c0ac7c4b62b047fa85eaefdcba7641040d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmf v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "4d4c9c0b5026030bdd2459da2cfd58c0ac7c4b62b047fa85eaefdcba7641040d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d4c9c0b5026030bdd2459da2cfd58c0ac7c4b62b047fa85eaefdcba7641040d", kill_on_drop: false }`
[INFO] [stdout] 4d4c9c0b5026030bdd2459da2cfd58c0ac7c4b62b047fa85eaefdcba7641040d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] d994644d242ca10c0b484931252fc728221bd445aac59a37993b79f823085df1
[INFO] running `Command { std: "docker" "start" "-a" "d994644d242ca10c0b484931252fc728221bd445aac59a37993b79f823085df1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmf v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "d994644d242ca10c0b484931252fc728221bd445aac59a37993b79f823085df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d994644d242ca10c0b484931252fc728221bd445aac59a37993b79f823085df1", kill_on_drop: false }`
[INFO] [stdout] d994644d242ca10c0b484931252fc728221bd445aac59a37993b79f823085df1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 40dd655288ff34474d9d9cee94731726b5a7825b207e29e5c1ceb4a4d342cb1e
[INFO] running `Command { std: "docker" "start" "-a" "40dd655288ff34474d9d9cee94731726b5a7825b207e29e5c1ceb4a4d342cb1e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libmf-5401e86512640292)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test matrix::tests::test_with_capacity ... ok
[INFO] [stdout] test matrix::tests::test_new ... ok
[INFO] [stdout] test model::tests::test_not_fit ... ok
[INFO] [stdout] test model::tests::test_predict_not_fit - should panic ... ok
[INFO] [stdout] test model::tests::test_save_not_fit - should panic ... ok
[INFO] [stdout] test model::tests::test_metrics ... ok
[INFO] [stdout] test model::tests::test_predict_out_of_range ... ok
[INFO] [stdout] test model::tests::test_fit_eval ... ok
[INFO] [stdout] test model::tests::test_fit ... ok
[INFO] [stdout] test model::tests::test_save_load ... ok
[INFO] [stdout] test model::tests::test_cv ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.65s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libmf
[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" "40dd655288ff34474d9d9cee94731726b5a7825b207e29e5c1ceb4a4d342cb1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40dd655288ff34474d9d9cee94731726b5a7825b207e29e5c1ceb4a4d342cb1e", kill_on_drop: false }`
[INFO] [stdout] 40dd655288ff34474d9d9cee94731726b5a7825b207e29e5c1ceb4a4d342cb1e