[INFO] cloning repository https://github.com/joelparkerhenderson/demo_rust_html_parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joelparkerhenderson/demo_rust_html_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelparkerhenderson%2Fdemo_rust_html_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelparkerhenderson%2Fdemo_rust_html_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2585a18e8d1ad10d67f6978fcb35b847a36f3557
[INFO] documenting joelparkerhenderson/demo_rust_html_parser against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoelparkerhenderson%2Fdemo_rust_html_parser" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joelparkerhenderson/demo_rust_html_parser on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joelparkerhenderson/demo_rust_html_parser
[INFO] finished tweaking git repo https://github.com/joelparkerhenderson/demo_rust_html_parser
[INFO] tweaked toml for git repo https://github.com/joelparkerhenderson/demo_rust_html_parser written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/joelparkerhenderson/demo_rust_html_parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded markup5ever v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 706f2c932192d3a62da8159dbccca17996484167e1b45ee15d646afb3887faef
[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" "706f2c932192d3a62da8159dbccca17996484167e1b45ee15d646afb3887faef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "706f2c932192d3a62da8159dbccca17996484167e1b45ee15d646afb3887faef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "706f2c932192d3a62da8159dbccca17996484167e1b45ee15d646afb3887faef", kill_on_drop: false }`
[INFO] [stdout] 706f2c932192d3a62da8159dbccca17996484167e1b45ee15d646afb3887faef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] f606318fe3a0a77491c6cce9b230b3c05a4d0b8270926920bbb1fd64d4b2b466
[INFO] running `Command { std: "docker" "start" "-a" "f606318fe3a0a77491c6cce9b230b3c05a4d0b8270926920bbb1fd64d4b2b466", kill_on_drop: false }`
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking serde v1.0.15
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking utf-8 v0.7.1
[INFO] [stderr]     Checking debug_unreachable v0.1.1
[INFO] [stderr]     Checking futf v0.1.3
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]     Checking tendril v0.4.0
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling rand v0.3.17
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling string_cache_codegen v0.4.0
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling string_cache v0.6.2
[INFO] [stderr]    Compiling markup5ever v0.6.0
[INFO] [stderr]    Compiling html5ever v0.21.0
[INFO] [stderr]  Documenting demo-rust-html-parser v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.57s
[INFO] running `Command { std: "docker" "inspect" "f606318fe3a0a77491c6cce9b230b3c05a4d0b8270926920bbb1fd64d4b2b466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f606318fe3a0a77491c6cce9b230b3c05a4d0b8270926920bbb1fd64d4b2b466", kill_on_drop: false }`
[INFO] [stdout] f606318fe3a0a77491c6cce9b230b3c05a4d0b8270926920bbb1fd64d4b2b466