[INFO] fetching crate snail-countdown 1.0.2...
[INFO] documenting snail-countdown-1.0.2 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate snail-countdown 1.0.2 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate snail-countdown 1.0.2 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 snail-countdown 1.0.2
[INFO] finished tweaking crates.io crate snail-countdown 1.0.2
[INFO] tweaked toml for crates.io crate snail-countdown 1.0.2 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate snail-countdown 1.0.2 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 73ca222f6133947ab10093d01477b218e394bb7d8e8d522ae821c418a1bcc450
[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" "73ca222f6133947ab10093d01477b218e394bb7d8e8d522ae821c418a1bcc450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73ca222f6133947ab10093d01477b218e394bb7d8e8d522ae821c418a1bcc450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73ca222f6133947ab10093d01477b218e394bb7d8e8d522ae821c418a1bcc450", kill_on_drop: false }`
[INFO] [stdout] 73ca222f6133947ab10093d01477b218e394bb7d8e8d522ae821c418a1bcc450
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 0f91ca156281c266a71ef3e0bf4b3b812c4ca15eb76c0ddbaba7adbdbd509860
[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" "0f91ca156281c266a71ef3e0bf4b3b812c4ca15eb76c0ddbaba7adbdbd509860", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]     Checking os_str_bytes v2.3.1
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]     Checking dbus v0.8.4
[INFO] [stderr]     Checking notify-rust v4.0.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]  Documenting snail-countdown v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.74s
[INFO] running `Command { std: "docker" "inspect" "0f91ca156281c266a71ef3e0bf4b3b812c4ca15eb76c0ddbaba7adbdbd509860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f91ca156281c266a71ef3e0bf4b3b812c4ca15eb76c0ddbaba7adbdbd509860", kill_on_drop: false }`
[INFO] [stdout] 0f91ca156281c266a71ef3e0bf4b3b812c4ca15eb76c0ddbaba7adbdbd509860