[INFO] fetching crate tangram_metrics 0.7.0...
[INFO] testing tangram_metrics-0.7.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate tangram_metrics 0.7.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate tangram_metrics 0.7.0 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 tangram_metrics 0.7.0
[INFO] finished tweaking crates.io crate tangram_metrics 0.7.0
[INFO] tweaked toml for crates.io crate tangram_metrics 0.7.0 written to /workspace/builds/worker-12/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 49e13ba3623b13f51a86262c1e00259de2e3c7a018a502d19bd59ff67efa6af0
[INFO] running `Command { std: "docker" "start" "-a" "49e13ba3623b13f51a86262c1e00259de2e3c7a018a502d19bd59ff67efa6af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49e13ba3623b13f51a86262c1e00259de2e3c7a018a502d19bd59ff67efa6af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49e13ba3623b13f51a86262c1e00259de2e3c7a018a502d19bd59ff67efa6af0", kill_on_drop: false }`
[INFO] [stdout] 49e13ba3623b13f51a86262c1e00259de2e3c7a018a502d19bd59ff67efa6af0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] fdd5a726b3008b87f092b3403a6f91b7991243d289600dcd02601bb552c1c78f
[INFO] running `Command { std: "docker" "start" "-a" "fdd5a726b3008b87f092b3403a6f91b7991243d289600dcd02601bb552c1c78f", kill_on_drop: false }`
[INFO] [stderr]    Compiling tangram_zip v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling matrixmultiply v0.3.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling ndarray v0.15.3
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling tangram_metrics v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.35s
[INFO] running `Command { std: "docker" "inspect" "fdd5a726b3008b87f092b3403a6f91b7991243d289600dcd02601bb552c1c78f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdd5a726b3008b87f092b3403a6f91b7991243d289600dcd02601bb552c1c78f", kill_on_drop: false }`
[INFO] [stdout] fdd5a726b3008b87f092b3403a6f91b7991243d289600dcd02601bb552c1c78f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] ec2176166eb124e818612e6c2be3c0302a9496d095ad872bcf80c495de767e24
[INFO] running `Command { std: "docker" "start" "-a" "ec2176166eb124e818612e6c2be3c0302a9496d095ad872bcf80c495de767e24", kill_on_drop: false }`
[INFO] [stderr]    Compiling insta v1.8.0
[INFO] [stderr]    Compiling tangram_metrics v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.09s
[INFO] running `Command { std: "docker" "inspect" "ec2176166eb124e818612e6c2be3c0302a9496d095ad872bcf80c495de767e24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec2176166eb124e818612e6c2be3c0302a9496d095ad872bcf80c495de767e24", kill_on_drop: false }`
[INFO] [stdout] ec2176166eb124e818612e6c2be3c0302a9496d095ad872bcf80c495de767e24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] d8bba2f22f3dee6f585d81a64ec462ab5b8f06b9ff45cfb1d33f957ab44f9227
[INFO] running `Command { std: "docker" "start" "-a" "d8bba2f22f3dee6f585d81a64ec462ab5b8f06b9ff45cfb1d33f957ab44f9227", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tangram_metrics-e646499c8cbe40d0)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test auc_roc::test_roc_curve ... ok
[INFO] [stdout] test multiclass_classification::test_three ... ok
[INFO] [stdout] test binary_classification::test ... ok
[INFO] [stdout] test multiclass_classification::test_two ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tangram_metrics
[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" "d8bba2f22f3dee6f585d81a64ec462ab5b8f06b9ff45cfb1d33f957ab44f9227", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8bba2f22f3dee6f585d81a64ec462ab5b8f06b9ff45cfb1d33f957ab44f9227", kill_on_drop: false }`
[INFO] [stdout] d8bba2f22f3dee6f585d81a64ec462ab5b8f06b9ff45cfb1d33f957ab44f9227