[INFO] fetching crate libmf 0.2.1...
[INFO] testing libmf-0.2.1 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate libmf 0.2.1 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate libmf 0.2.1 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-23/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c39c703c6e57ee587c7c7e17e4f7edb42cbb54aab6a2dbbaef467a1363f818b0
[INFO] running `Command { std: "docker" "start" "-a" "c39c703c6e57ee587c7c7e17e4f7edb42cbb54aab6a2dbbaef467a1363f818b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c39c703c6e57ee587c7c7e17e4f7edb42cbb54aab6a2dbbaef467a1363f818b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c39c703c6e57ee587c7c7e17e4f7edb42cbb54aab6a2dbbaef467a1363f818b0", kill_on_drop: false }`
[INFO] [stdout] c39c703c6e57ee587c7c7e17e4f7edb42cbb54aab6a2dbbaef467a1363f818b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 393144f04180af283bfa0a2a59bfb3c6c6d120aaadbc2ce2f51cef6a17f18eac
[INFO] running `Command { std: "docker" "start" "-a" "393144f04180af283bfa0a2a59bfb3c6c6d120aaadbc2ce2f51cef6a17f18eac", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling libmf v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.26s
[INFO] running `Command { std: "docker" "inspect" "393144f04180af283bfa0a2a59bfb3c6c6d120aaadbc2ce2f51cef6a17f18eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "393144f04180af283bfa0a2a59bfb3c6c6d120aaadbc2ce2f51cef6a17f18eac", kill_on_drop: false }`
[INFO] [stdout] 393144f04180af283bfa0a2a59bfb3c6c6d120aaadbc2ce2f51cef6a17f18eac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3aef5d24f4550c6614b0c98a91c885e955723f2a75634b6c6fa8bf166045a4ed
[INFO] running `Command { std: "docker" "start" "-a" "3aef5d24f4550c6614b0c98a91c885e955723f2a75634b6c6fa8bf166045a4ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libmf v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "3aef5d24f4550c6614b0c98a91c885e955723f2a75634b6c6fa8bf166045a4ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3aef5d24f4550c6614b0c98a91c885e955723f2a75634b6c6fa8bf166045a4ed", kill_on_drop: false }`
[INFO] [stdout] 3aef5d24f4550c6614b0c98a91c885e955723f2a75634b6c6fa8bf166045a4ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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=forbid" "-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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aff76b8b49d376b766de12d11c42c8a3af87ef1c0fbe5e70b94b09f1e54d2480
[INFO] running `Command { std: "docker" "start" "-a" "aff76b8b49d376b766de12d11c42c8a3af87ef1c0fbe5e70b94b09f1e54d2480", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libmf-7bde5fe18c8709d4)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] warning: train on an empty training set
[INFO] [stdout] test matrix::tests::test_with_capacity ... ok
[INFO] [stdout] test matrix::tests::test_new ... ok
[INFO] [stdout] test model::tests::test_fit_bad_params ... ok
[INFO] [stdout] test model::tests::test_cv_bad_params ... ok
[INFO] [stdout] test model::tests::test_fit_eval_bad_params ... ok
[INFO] [stdout] test model::tests::test_fit_empty ... ok
[INFO] [stdout] test model::tests::test_load_missing ... 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 ... ok
[INFO] [stdout] test model::tests::test_fit ... ok
[INFO] [stdout] test model::tests::test_metrics ... ok
[INFO] [stdout] test model::tests::test_save_load ... 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_fit_eval ... ok
[INFO] [stdout] test model::tests::test_loss_real_kl ... 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 1.26s
[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" "aff76b8b49d376b766de12d11c42c8a3af87ef1c0fbe5e70b94b09f1e54d2480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aff76b8b49d376b766de12d11c42c8a3af87ef1c0fbe5e70b94b09f1e54d2480", kill_on_drop: false }`
[INFO] [stdout] aff76b8b49d376b766de12d11c42c8a3af87ef1c0fbe5e70b94b09f1e54d2480