[INFO] fetching crate image-data 0.2.0...
[INFO] documenting image-data-0.2.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate image-data 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate image-data 0.2.0 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate image-data 0.2.0
[INFO] finished tweaking crates.io crate image-data 0.2.0
[INFO] tweaked toml for crates.io crate image-data 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate image-data 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hermit-abi v0.1.11
[INFO] [stderr]   Downloaded png v0.16.3
[INFO] [stderr]   Downloaded ron v0.5.1
[INFO] [stderr]   Downloaded image v0.23.4
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "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] 5700761cbf7c104b8e0bdb2f968ab2ed1f3008e04e9e41210af7121ee522417f
[INFO] running `Command { std: "docker" "start" "-a" "5700761cbf7c104b8e0bdb2f968ab2ed1f3008e04e9e41210af7121ee522417f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5700761cbf7c104b8e0bdb2f968ab2ed1f3008e04e9e41210af7121ee522417f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5700761cbf7c104b8e0bdb2f968ab2ed1f3008e04e9e41210af7121ee522417f", kill_on_drop: false }`
[INFO] [stdout] 5700761cbf7c104b8e0bdb2f968ab2ed1f3008e04e9e41210af7121ee522417f
[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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] 720c172e8e3ec5b8474d4c92864f872e31be85bef70a765deb26f4155552c8bc
[INFO] running `Command { std: "docker" "start" "-a" "720c172e8e3ec5b8474d4c92864f872e31be85bef70a765deb26f4155552c8bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking tiff v0.4.0
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking num-iter v0.1.40
[INFO] [stderr]     Checking png v0.16.3
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking image v0.23.4
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking ron v0.5.1
[INFO] [stderr]  Documenting image-data v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.74s
[INFO] running `Command { std: "docker" "inspect" "720c172e8e3ec5b8474d4c92864f872e31be85bef70a765deb26f4155552c8bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "720c172e8e3ec5b8474d4c92864f872e31be85bef70a765deb26f4155552c8bc", kill_on_drop: false }`
[INFO] [stdout] 720c172e8e3ec5b8474d4c92864f872e31be85bef70a765deb26f4155552c8bc