[INFO] fetching crate mlflow 0.1.0...
[INFO] testing mlflow-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate mlflow 0.1.0 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate mlflow 0.1.0 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 mlflow 0.1.0
[INFO] finished tweaking crates.io crate mlflow 0.1.0
[INFO] tweaked toml for crates.io crate mlflow 0.1.0 written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] crate crates.io crate mlflow 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nanoserde-derive v0.1.12
[INFO] [stderr]   Downloaded ureq v1.5.2
[INFO] [stderr]   Downloaded nanorand v0.4.4
[INFO] [stderr]   Downloaded nanoserde v0.1.20
[INFO] [stderr]   Downloaded pico-args v0.3.4
[INFO] [stderr]   Downloaded cc v1.0.62
[INFO] [stderr]   Downloaded unicode-normalization v0.1.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] ad53260d48f1f7fac2389a75754f54f2e2a5aa40797f1d5a6012608486bc76ed
[INFO] running `Command { std: "docker" "start" "-a" "ad53260d48f1f7fac2389a75754f54f2e2a5aa40797f1d5a6012608486bc76ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad53260d48f1f7fac2389a75754f54f2e2a5aa40797f1d5a6012608486bc76ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad53260d48f1f7fac2389a75754f54f2e2a5aa40797f1d5a6012608486bc76ed", kill_on_drop: false }`
[INFO] [stdout] ad53260d48f1f7fac2389a75754f54f2e2a5aa40797f1d5a6012608486bc76ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 8667e738b5c0552fb34fbcde552836e5bc7be9335a664dd369db3adcd52acfd9
[INFO] running `Command { std: "docker" "start" "-a" "8667e738b5c0552fb34fbcde552836e5bc7be9335a664dd369db3adcd52acfd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling cc v1.0.62
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling nanoserde-derive v0.1.12
[INFO] [stderr]    Compiling chunked_transfer v1.3.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling tinyvec v1.0.1
[INFO] [stderr]    Compiling form_urlencoded v1.0.0
[INFO] [stderr]    Compiling qstring v0.7.2
[INFO] [stderr]    Compiling nanoserde v0.1.20
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling unicode-normalization v0.1.15
[INFO] [stderr]    Compiling ring v0.16.16
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling url v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling webpki v0.21.3
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling webpki-roots v0.20.0
[INFO] [stderr]    Compiling rustls v0.18.1
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling ureq v1.5.2
[INFO] [stderr]    Compiling mlflow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.65s
[INFO] running `Command { std: "docker" "inspect" "8667e738b5c0552fb34fbcde552836e5bc7be9335a664dd369db3adcd52acfd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8667e738b5c0552fb34fbcde552836e5bc7be9335a664dd369db3adcd52acfd9", kill_on_drop: false }`
[INFO] [stdout] 8667e738b5c0552fb34fbcde552836e5bc7be9335a664dd369db3adcd52acfd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 1bab33395abf0d8a835428718ad6f19ee924b6e592b7c5a6e506020e70fd995c
[INFO] running `Command { std: "docker" "start" "-a" "1bab33395abf0d8a835428718ad6f19ee924b6e592b7c5a6e506020e70fd995c", kill_on_drop: false }`
[INFO] [stderr]    Compiling pico-args v0.3.4
[INFO] [stderr]    Compiling nanorand v0.4.4
[INFO] [stderr]    Compiling mlflow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `Command { std: "docker" "inspect" "1bab33395abf0d8a835428718ad6f19ee924b6e592b7c5a6e506020e70fd995c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bab33395abf0d8a835428718ad6f19ee924b6e592b7c5a6e506020e70fd995c", kill_on_drop: false }`
[INFO] [stdout] 1bab33395abf0d8a835428718ad6f19ee924b6e592b7c5a6e506020e70fd995c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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] 4358c3a908336d6dec28d5707bbd4694e7c6a33667338b954093ed8629e4c3ca
[INFO] running `Command { std: "docker" "start" "-a" "4358c3a908336d6dec28d5707bbd4694e7c6a33667338b954093ed8629e4c3ca", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mlflow-1ccc0bd71d90927a)
[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] [stderr]    Doc-tests mlflow
[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" "4358c3a908336d6dec28d5707bbd4694e7c6a33667338b954093ed8629e4c3ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4358c3a908336d6dec28d5707bbd4694e7c6a33667338b954093ed8629e4c3ca", kill_on_drop: false }`
[INFO] [stdout] 4358c3a908336d6dec28d5707bbd4694e7c6a33667338b954093ed8629e4c3ca