[INFO] fetching crate mcai-backend 0.0.1...
[INFO] testing mcai-backend-0.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mcai-backend 0.0.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate mcai-backend 0.0.1 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 mcai-backend 0.0.1
[INFO] finished tweaking crates.io crate mcai-backend 0.0.1
[INFO] tweaked toml for crates.io crate mcai-backend 0.0.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate mcai-backend 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] f7706d870f695c0cd23eb5030850b5ddf5ad5dfb7c71af92a6d7338de1472f7d
[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" "f7706d870f695c0cd23eb5030850b5ddf5ad5dfb7c71af92a6d7338de1472f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7706d870f695c0cd23eb5030850b5ddf5ad5dfb7c71af92a6d7338de1472f7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7706d870f695c0cd23eb5030850b5ddf5ad5dfb7c71af92a6d7338de1472f7d", kill_on_drop: false }`
[INFO] [stdout] f7706d870f695c0cd23eb5030850b5ddf5ad5dfb7c71af92a6d7338de1472f7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 5a5b76c105fe219893fea27db596476cf7e83c70bc42ebdb3adbe39cb1819739
[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" "5a5b76c105fe219893fea27db596476cf7e83c70bc42ebdb3adbe39cb1819739", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling httpdate v1.0.0
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling futures-util v0.3.14
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]    Compiling term-table v1.3.1
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling tokio-util v0.6.6
[INFO] [stderr]    Compiling tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling h2 v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling hyper v0.14.7
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling reqwest v0.11.3
[INFO] [stderr]    Compiling cargo-lock v4.0.1
[INFO] [stderr]    Compiling built v0.4.4
[INFO] [stderr]    Compiling mcai-backend v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 05s
[INFO] running `Command { std: "docker" "inspect" "5a5b76c105fe219893fea27db596476cf7e83c70bc42ebdb3adbe39cb1819739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a5b76c105fe219893fea27db596476cf7e83c70bc42ebdb3adbe39cb1819739", kill_on_drop: false }`
[INFO] [stdout] 5a5b76c105fe219893fea27db596476cf7e83c70bc42ebdb3adbe39cb1819739
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a40aaa9bb6d13325a8282990f569a079f305593057192ee0b7b22ad831074d47
[INFO] running `Command { std: "docker" "start" "-a" "a40aaa9bb6d13325a8282990f569a079f305593057192ee0b7b22ad831074d47", kill_on_drop: false }`
[INFO] [stderr]    Compiling mcai-backend v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `Command { std: "docker" "inspect" "a40aaa9bb6d13325a8282990f569a079f305593057192ee0b7b22ad831074d47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a40aaa9bb6d13325a8282990f569a079f305593057192ee0b7b22ad831074d47", kill_on_drop: false }`
[INFO] [stdout] a40aaa9bb6d13325a8282990f569a079f305593057192ee0b7b22ad831074d47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] eafc2236c74b0e903ee7a92810be6b40cc4cca4c4e125d52bfa6fc659f1fd037
[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" "eafc2236c74b0e903ee7a92810be6b40cc4cca4c4e125d52bfa6fc659f1fd037", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mcai_backend-99ea059895151a56)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mcai_backend-062780fd1204fe67)
[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 mcai-backend
[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] [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" "eafc2236c74b0e903ee7a92810be6b40cc4cca4c4e125d52bfa6fc659f1fd037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eafc2236c74b0e903ee7a92810be6b40cc4cca4c4e125d52bfa6fc659f1fd037", kill_on_drop: false }`
[INFO] [stdout] eafc2236c74b0e903ee7a92810be6b40cc4cca4c4e125d52bfa6fc659f1fd037