[INFO] fetching crate ndarray-image 0.2.1...
[INFO] documenting ndarray-image-0.2.1 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate ndarray-image 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ndarray-image 0.2.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ndarray-image 0.2.1
[INFO] finished tweaking crates.io crate ndarray-image 0.2.1
[INFO] tweaked toml for crates.io crate ndarray-image 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate ndarray-image 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "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] 4bb96537b3782e4ba8dceb7e878a08be93c73425d15eb8be44b0e354c7839cdf
[INFO] running `Command { std: "docker" "start" "-a" "4bb96537b3782e4ba8dceb7e878a08be93c73425d15eb8be44b0e354c7839cdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bb96537b3782e4ba8dceb7e878a08be93c73425d15eb8be44b0e354c7839cdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb96537b3782e4ba8dceb7e878a08be93c73425d15eb8be44b0e354c7839cdf", kill_on_drop: false }`
[INFO] [stdout] 4bb96537b3782e4ba8dceb7e878a08be93c73425d15eb8be44b0e354c7839cdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d880653d5f08d4f0a51d5bb26e4033b20f3748509a025ec408327fc41b10fddd
[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" "d880653d5f08d4f0a51d5bb26e4033b20f3748509a025ec408327fc41b10fddd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking deflate v0.8.3
[INFO] [stderr]     Checking tiff v0.4.0
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking png v0.16.1
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking image v0.23.2
[INFO] [stderr]  Documenting ndarray-image v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.89s
[INFO] running `Command { std: "docker" "inspect" "d880653d5f08d4f0a51d5bb26e4033b20f3748509a025ec408327fc41b10fddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d880653d5f08d4f0a51d5bb26e4033b20f3748509a025ec408327fc41b10fddd", kill_on_drop: false }`
[INFO] [stdout] d880653d5f08d4f0a51d5bb26e4033b20f3748509a025ec408327fc41b10fddd
