[INFO] fetching crate libmf 0.2.1...
[INFO] testing libmf-0.2.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate libmf 0.2.1 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate libmf 0.2.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libmf 0.2.1
[INFO] finished tweaking crates.io crate libmf 0.2.1
[INFO] tweaked toml for crates.io crate libmf 0.2.1 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bbace344a6d4ec66d0fbd8056337edc4eddbdedf8ee1d5b3dccf9e659a9250d
[INFO] running `Command { std: "docker" "start" "-a" "2bbace344a6d4ec66d0fbd8056337edc4eddbdedf8ee1d5b3dccf9e659a9250d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bbace344a6d4ec66d0fbd8056337edc4eddbdedf8ee1d5b3dccf9e659a9250d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bbace344a6d4ec66d0fbd8056337edc4eddbdedf8ee1d5b3dccf9e659a9250d", kill_on_drop: false }`
[INFO] [stdout] 2bbace344a6d4ec66d0fbd8056337edc4eddbdedf8ee1d5b3dccf9e659a9250d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 183ee2fda1ccd507b77aacba5e4a89160df9e21ec0ef8724abd32807f747a067
[INFO] running `Command { std: "docker" "start" "-a" "183ee2fda1ccd507b77aacba5e4a89160df9e21ec0ef8724abd32807f747a067", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmf v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.02s
[INFO] running `Command { std: "docker" "inspect" "183ee2fda1ccd507b77aacba5e4a89160df9e21ec0ef8724abd32807f747a067", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "183ee2fda1ccd507b77aacba5e4a89160df9e21ec0ef8724abd32807f747a067", kill_on_drop: false }`
[INFO] [stdout] 183ee2fda1ccd507b77aacba5e4a89160df9e21ec0ef8724abd32807f747a067
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22e4270a11040453a9fa6eff01dcaeefb6588d8c9bec49d079bbcc91d06e9019
[INFO] running `Command { std: "docker" "start" "-a" "22e4270a11040453a9fa6eff01dcaeefb6588d8c9bec49d079bbcc91d06e9019", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmf v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/libmf-50e5a86c9e327ff4)
[INFO] running `Command { std: "docker" "inspect" "22e4270a11040453a9fa6eff01dcaeefb6588d8c9bec49d079bbcc91d06e9019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22e4270a11040453a9fa6eff01dcaeefb6588d8c9bec49d079bbcc91d06e9019", kill_on_drop: false }`
[INFO] [stdout] 22e4270a11040453a9fa6eff01dcaeefb6588d8c9bec49d079bbcc91d06e9019
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 26432e64077408b69c48ae21f3ce21f0dee018ac0ff6603af6a05f3390465bdb
[INFO] running `Command { std: "docker" "start" "-a" "26432e64077408b69c48ae21f3ce21f0dee018ac0ff6603af6a05f3390465bdb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libmf-50e5a86c9e327ff4)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test matrix::tests::test_new ... ok
[INFO] [stdout] test matrix::tests::test_with_capacity ... ok
[INFO] [stdout] test model::tests::test_cv_bad_params ... ok
[INFO] [stdout] test model::tests::test_fit_bad_params ... ok
[INFO] [stdout] test model::tests::test_fit_eval_bad_params ... ok
[INFO] [stdout] test model::tests::test_load_missing ... ok
[INFO] [stdout] test model::tests::test_loss ... ok
[INFO] [stdout] warning: train on an empty training set
[INFO] [stdout] test model::tests::test_fit_empty ... ok
[INFO] [stdout] warning: train on an empty training set
[INFO] [stdout] test model::tests::test_fit_eval_empty ... ok
[INFO] [stdout] test model::tests::test_loss_real_kl ... ok
[INFO] [stdout] test model::tests::test_save_missing ... ok
[INFO] [stdout] test model::tests::test_predict_out_of_range ... ok
[INFO] [stdout] test model::tests::test_metrics ... ok
[INFO] [stdout] test model::tests::test_save_load ... ok
[INFO] [stdout] test model::tests::test_fit ... ok
[INFO] [stdout] test model::tests::test_fit_eval ... ok
[INFO] [stdout] test model::tests::test_cv ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.10s
[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" "26432e64077408b69c48ae21f3ce21f0dee018ac0ff6603af6a05f3390465bdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26432e64077408b69c48ae21f3ce21f0dee018ac0ff6603af6a05f3390465bdb", kill_on_drop: false }`
[INFO] [stdout] 26432e64077408b69c48ae21f3ce21f0dee018ac0ff6603af6a05f3390465bdb