[INFO] cloning repository https://github.com/grenade/rustyscraper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grenade/rustyscraper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrenade%2Frustyscraper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrenade%2Frustyscraper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4e33bbbc9047b0c9a2f0dde60444edacf1ce2b13
[INFO] documenting grenade/rustyscraper against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrenade%2Frustyscraper" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grenade/rustyscraper on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grenade/rustyscraper
[INFO] finished tweaking git repo https://github.com/grenade/rustyscraper
[INFO] tweaked toml for git repo https://github.com/grenade/rustyscraper written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/grenade/rustyscraper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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-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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf2cac48697937213e773a46e63269ba3f02f60b4fec5a692afdcbb8a1ec2b1d
[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" "cf2cac48697937213e773a46e63269ba3f02f60b4fec5a692afdcbb8a1ec2b1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf2cac48697937213e773a46e63269ba3f02f60b4fec5a692afdcbb8a1ec2b1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf2cac48697937213e773a46e63269ba3f02f60b4fec5a692afdcbb8a1ec2b1d", kill_on_drop: false }`
[INFO] [stdout] cf2cac48697937213e773a46e63269ba3f02f60b4fec5a692afdcbb8a1ec2b1d
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ff7b10a934b9f9f0af5be994fc6af158c1417ddcec15b205e31e9530f1e22a3
[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" "0ff7b10a934b9f9f0af5be994fc6af158c1417ddcec15b205e31e9530f1e22a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.38
[INFO] [stderr]    Compiling serde v1.0.93
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling backtrace v0.3.31
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]     Checking h2 v0.1.24
[INFO] [stderr]     Checking regex v1.1.7
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking publicsuffix v1.5.2
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking hyper v0.12.30
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.93
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking string_cache v0.6.2
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking serde_yaml v0.8.9
[INFO] [stderr]     Checking rust_decimal v1.0.1
[INFO] [stderr]     Checking markup5ever v0.3.2
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking html5ever v0.18.0
[INFO] [stderr]     Checking reqwest v0.9.18
[INFO] [stderr]     Checking select v0.4.2
[INFO] [stderr]  Documenting rustyscraper v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.72s
[INFO] running `Command { std: "docker" "inspect" "0ff7b10a934b9f9f0af5be994fc6af158c1417ddcec15b205e31e9530f1e22a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ff7b10a934b9f9f0af5be994fc6af158c1417ddcec15b205e31e9530f1e22a3", kill_on_drop: false }`
[INFO] [stdout] 0ff7b10a934b9f9f0af5be994fc6af158c1417ddcec15b205e31e9530f1e22a3