[INFO] fetching crate pixelize 0.3.1...
[INFO] documenting pixelize-0.3.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate pixelize 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pixelize 0.3.1 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 pixelize 0.3.1
[INFO] finished tweaking crates.io crate pixelize 0.3.1
[INFO] tweaked toml for crates.io crate pixelize 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate pixelize 0.3.1 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]     Blocking waiting for file lock on package cache
[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-2020-08-29" "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] 997f784574d05bbc4ebdd66b2d09946c10f2b28d05a4f1d39a3633750c94d9d9
[INFO] running `Command { std: "docker" "start" "-a" "997f784574d05bbc4ebdd66b2d09946c10f2b28d05a4f1d39a3633750c94d9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "997f784574d05bbc4ebdd66b2d09946c10f2b28d05a4f1d39a3633750c94d9d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "997f784574d05bbc4ebdd66b2d09946c10f2b28d05a4f1d39a3633750c94d9d9", kill_on_drop: false }`
[INFO] [stdout] 997f784574d05bbc4ebdd66b2d09946c10f2b28d05a4f1d39a3633750c94d9d9
[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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08f0dd0dfe33c80a66d6d0e1b3880cccce55357cde4edbd5597b1994a8a4fe47
[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" "08f0dd0dfe33c80a66d6d0e1b3880cccce55357cde4edbd5597b1994a8a4fe47", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking image v0.22.4
[INFO] [stderr]  Documenting pixelize v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.81s
[INFO] running `Command { std: "docker" "inspect" "08f0dd0dfe33c80a66d6d0e1b3880cccce55357cde4edbd5597b1994a8a4fe47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08f0dd0dfe33c80a66d6d0e1b3880cccce55357cde4edbd5597b1994a8a4fe47", kill_on_drop: false }`
[INFO] [stdout] 08f0dd0dfe33c80a66d6d0e1b3880cccce55357cde4edbd5597b1994a8a4fe47