[INFO] fetching crate mozjpeg 0.8.20...
[INFO] documenting mozjpeg-0.8.20 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate mozjpeg 0.8.20 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mozjpeg 0.8.20 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 mozjpeg 0.8.20
[INFO] finished tweaking crates.io crate mozjpeg 0.8.20
[INFO] tweaked toml for crates.io crate mozjpeg 0.8.20 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mozjpeg-sys v0.10.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] 38d42bdf843be8ef20c6f26252d028bea79016044e5f2d1c2998c8e179f2f9d9
[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" "38d42bdf843be8ef20c6f26252d028bea79016044e5f2d1c2998c8e179f2f9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38d42bdf843be8ef20c6f26252d028bea79016044e5f2d1c2998c8e179f2f9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38d42bdf843be8ef20c6f26252d028bea79016044e5f2d1c2998c8e179f2f9d9", kill_on_drop: false }`
[INFO] [stdout] 38d42bdf843be8ef20c6f26252d028bea79016044e5f2d1c2998c8e179f2f9d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 8f4bc146738c0ebcf6b92d213081b97255434098482dcaf35236a981bc2cba6a
[INFO] running `Command { std: "docker" "start" "-a" "8f4bc146738c0ebcf6b92d213081b97255434098482dcaf35236a981bc2cba6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling dunce v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling crossbeam-channel v0.4.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rayon-core v1.8.0
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling nasm-rs v0.2.0
[INFO] [stderr]    Compiling mozjpeg-sys v0.10.11
[INFO] [stderr]  Documenting mozjpeg v0.8.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.39s
[INFO] running `Command { std: "docker" "inspect" "8f4bc146738c0ebcf6b92d213081b97255434098482dcaf35236a981bc2cba6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f4bc146738c0ebcf6b92d213081b97255434098482dcaf35236a981bc2cba6a", kill_on_drop: false }`
[INFO] [stdout] 8f4bc146738c0ebcf6b92d213081b97255434098482dcaf35236a981bc2cba6a