[INFO] fetching crate advancedresearch-error_predictive_learning 0.1.0...
[INFO] testing advancedresearch-error_predictive_learning-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate advancedresearch-error_predictive_learning 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate advancedresearch-error_predictive_learning 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 advancedresearch-error_predictive_learning 0.1.0
[INFO] finished tweaking crates.io crate advancedresearch-error_predictive_learning 0.1.0
[INFO] tweaked toml for crates.io crate advancedresearch-error_predictive_learning 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate advancedresearch-error_predictive_learning 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 00dd315b92b441d200109f9c7a1fa5ba47794cf7e40f9134049669a3cf54cf8b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "00dd315b92b441d200109f9c7a1fa5ba47794cf7e40f9134049669a3cf54cf8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00dd315b92b441d200109f9c7a1fa5ba47794cf7e40f9134049669a3cf54cf8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00dd315b92b441d200109f9c7a1fa5ba47794cf7e40f9134049669a3cf54cf8b", kill_on_drop: false }`
[INFO] [stdout] 00dd315b92b441d200109f9c7a1fa5ba47794cf7e40f9134049669a3cf54cf8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 32626dd2a4a71d0a8c0f9ea060fde5a3803a868ed8a5cd02b9acbef25bc35af2
[INFO] running `Command { std: "docker" "start" "-a" "32626dd2a4a71d0a8c0f9ea060fde5a3803a868ed8a5cd02b9acbef25bc35af2", kill_on_drop: false }`
[INFO] [stderr]    Compiling advancedresearch-error_predictive_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "32626dd2a4a71d0a8c0f9ea060fde5a3803a868ed8a5cd02b9acbef25bc35af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32626dd2a4a71d0a8c0f9ea060fde5a3803a868ed8a5cd02b9acbef25bc35af2", kill_on_drop: false }`
[INFO] [stdout] 32626dd2a4a71d0a8c0f9ea060fde5a3803a868ed8a5cd02b9acbef25bc35af2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d310880b77509af363ec5c57f068b66b97c67b6c26842fc435ba73dd43abbf65
[INFO] running `Command { std: "docker" "start" "-a" "d310880b77509af363ec5c57f068b66b97c67b6c26842fc435ba73dd43abbf65", kill_on_drop: false }`
[INFO] [stderr]    Compiling advancedresearch-error_predictive_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "d310880b77509af363ec5c57f068b66b97c67b6c26842fc435ba73dd43abbf65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d310880b77509af363ec5c57f068b66b97c67b6c26842fc435ba73dd43abbf65", kill_on_drop: false }`
[INFO] [stdout] d310880b77509af363ec5c57f068b66b97c67b6c26842fc435ba73dd43abbf65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e0ede298a0cb4634b4b568b9ae0142b0f2ba029ed20a73bebbf86468f118b66e
[INFO] running `Command { std: "docker" "start" "-a" "e0ede298a0cb4634b4b568b9ae0142b0f2ba029ed20a73bebbf86468f118b66e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/error_predictive_learning-c67374d3e4176ba4)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests error_predictive_learning
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "e0ede298a0cb4634b4b568b9ae0142b0f2ba029ed20a73bebbf86468f118b66e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ede298a0cb4634b4b568b9ae0142b0f2ba029ed20a73bebbf86468f118b66e", kill_on_drop: false }`
[INFO] [stdout] e0ede298a0cb4634b4b568b9ae0142b0f2ba029ed20a73bebbf86468f118b66e