[INFO] fetching crate libimagutil 0.10.1...
[INFO] documenting libimagutil-0.10.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate libimagutil 0.10.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate libimagutil 0.10.1 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 libimagutil 0.10.1
[INFO] finished tweaking crates.io crate libimagutil 0.10.1
[INFO] tweaked toml for crates.io crate libimagutil 0.10.1 written to /workspace/builds/worker-9/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 23d022a00d0f1cd6de19accfae16fe9107211b0b9a9b70ca0b518d20c9b68fc0
[INFO] running `Command { std: "docker" "start" "-a" "23d022a00d0f1cd6de19accfae16fe9107211b0b9a9b70ca0b518d20c9b68fc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23d022a00d0f1cd6de19accfae16fe9107211b0b9a9b70ca0b518d20c9b68fc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23d022a00d0f1cd6de19accfae16fe9107211b0b9a9b70ca0b518d20c9b68fc0", kill_on_drop: false }`
[INFO] [stdout] 23d022a00d0f1cd6de19accfae16fe9107211b0b9a9b70ca0b518d20c9b68fc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 5c465dd0ff9b9ec951f2f0a7f2bb4e44893c65bd19fdac3492e11cdb57fca944
[INFO] running `Command { std: "docker" "start" "-a" "5c465dd0ff9b9ec951f2f0a7f2bb4e44893c65bd19fdac3492e11cdb57fca944", kill_on_drop: false }`
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]     Checking memchr v2.3.3
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]  Documenting libimagutil v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.61s
[INFO] running `Command { std: "docker" "inspect" "5c465dd0ff9b9ec951f2f0a7f2bb4e44893c65bd19fdac3492e11cdb57fca944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c465dd0ff9b9ec951f2f0a7f2bb4e44893c65bd19fdac3492e11cdb57fca944", kill_on_drop: false }`
[INFO] [stdout] 5c465dd0ff9b9ec951f2f0a7f2bb4e44893c65bd19fdac3492e11cdb57fca944