[INFO] cloning repository https://github.com/tawilkinson/rust_web_crawler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tawilkinson/rust_web_crawler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftawilkinson%2Frust_web_crawler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftawilkinson%2Frust_web_crawler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a8f527c7045422c8771be25546e653ce49c8d4a
[INFO] documenting tawilkinson/rust_web_crawler 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%2Ftawilkinson%2Frust_web_crawler" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tawilkinson/rust_web_crawler 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/tawilkinson/rust_web_crawler
[INFO] finished tweaking git repo https://github.com/tawilkinson/rust_web_crawler
[INFO] tweaked toml for git repo https://github.com/tawilkinson/rust_web_crawler written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/tawilkinson/rust_web_crawler 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 47b79cd67bddf8e6eacd84c4a1c974baa4a4d2fbd1206f5ac3af61d631ff0149
[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" "47b79cd67bddf8e6eacd84c4a1c974baa4a4d2fbd1206f5ac3af61d631ff0149", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47b79cd67bddf8e6eacd84c4a1c974baa4a4d2fbd1206f5ac3af61d631ff0149", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b79cd67bddf8e6eacd84c4a1c974baa4a4d2fbd1206f5ac3af61d631ff0149", kill_on_drop: false }`
[INFO] [stdout] 47b79cd67bddf8e6eacd84c4a1c974baa4a4d2fbd1206f5ac3af61d631ff0149
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] eae679731a7417b396d748662a547431a1513cd78e7470de168a74abbc38ba8d
[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" "eae679731a7417b396d748662a547431a1513cd78e7470de168a74abbc38ba8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]     Checking new_debug_unreachable v1.0.3
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking percent-encoding v2.0.0
[INFO] [stderr]    Compiling openssl-sys v0.9.48
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]     Checking url v2.0.0
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling html5ever v0.23.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]    Compiling markup5ever v0.8.1
[INFO] [stderr]     Checking reqwest v0.9.19
[INFO] [stderr]     Checking select v0.4.3
[INFO] [stderr]  Documenting rust_web_crawler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `Command { std: "docker" "inspect" "eae679731a7417b396d748662a547431a1513cd78e7470de168a74abbc38ba8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eae679731a7417b396d748662a547431a1513cd78e7470de168a74abbc38ba8d", kill_on_drop: false }`
[INFO] [stdout] eae679731a7417b396d748662a547431a1513cd78e7470de168a74abbc38ba8d