[INFO] fetching crate ceres 0.0.0...
[INFO] testing ceres-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ceres 0.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ceres 0.0.0 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 ceres 0.0.0
[INFO] finished tweaking crates.io crate ceres 0.0.0
[INFO] tweaked toml for crates.io crate ceres 0.0.0 written to /workspace/builds/worker-2/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-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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", 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] c14a6903089870658a18e6ba00056cca532bca0a91292cc613fdf9cb6e97e5c4
[INFO] running `Command { std: "docker" "start" "-a" "c14a6903089870658a18e6ba00056cca532bca0a91292cc613fdf9cb6e97e5c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c14a6903089870658a18e6ba00056cca532bca0a91292cc613fdf9cb6e97e5c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c14a6903089870658a18e6ba00056cca532bca0a91292cc613fdf9cb6e97e5c4", kill_on_drop: false }`
[INFO] [stdout] c14a6903089870658a18e6ba00056cca532bca0a91292cc613fdf9cb6e97e5c4
[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" "+1.55.0" "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] 009fe5740892da3b45ddbddd8ada4a7361955042542192d922182df85a2e45c8
[INFO] running `Command { std: "docker" "start" "-a" "009fe5740892da3b45ddbddd8ada4a7361955042542192d922182df85a2e45c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling ceres v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "009fe5740892da3b45ddbddd8ada4a7361955042542192d922182df85a2e45c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "009fe5740892da3b45ddbddd8ada4a7361955042542192d922182df85a2e45c8", kill_on_drop: false }`
[INFO] [stdout] 009fe5740892da3b45ddbddd8ada4a7361955042542192d922182df85a2e45c8
[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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b62009b9e2495b38d0b6ff4f91208e197c7d3f13379000385d295cb71a579eb
[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" "3b62009b9e2495b38d0b6ff4f91208e197c7d3f13379000385d295cb71a579eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling ceres v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "3b62009b9e2495b38d0b6ff4f91208e197c7d3f13379000385d295cb71a579eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b62009b9e2495b38d0b6ff4f91208e197c7d3f13379000385d295cb71a579eb", kill_on_drop: false }`
[INFO] [stdout] 3b62009b9e2495b38d0b6ff4f91208e197c7d3f13379000385d295cb71a579eb
[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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ff93fc421866e67dd93ab4253ad30abaa8ec6b541d53ba4588245c5c0630ea9
[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" "7ff93fc421866e67dd93ab4253ad30abaa8ec6b541d53ba4588245c5c0630ea9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ceres-58bac6b14cfc5105)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::ceres ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7ff93fc421866e67dd93ab4253ad30abaa8ec6b541d53ba4588245c5c0630ea9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ff93fc421866e67dd93ab4253ad30abaa8ec6b541d53ba4588245c5c0630ea9", kill_on_drop: false }`
[INFO] [stdout] 7ff93fc421866e67dd93ab4253ad30abaa8ec6b541d53ba4588245c5c0630ea9