[INFO] fetching crate html2text 0.1.14...
[INFO] documenting html2text-0.1.14 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate html2text 0.1.14 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate html2text 0.1.14 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 html2text 0.1.14
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate html2text 0.1.14
[INFO] tweaked toml for crates.io crate html2text 0.1.14 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate html2text 0.1.14 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded markup5ever_rcdom v0.1.0
[INFO] [stderr]   Downloaded xml5ever v0.16.1
[INFO] [stderr]   Downloaded html5ever v0.25.1
[INFO] [stderr]   Downloaded clippy v0.0.302
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e70ea904fbf3e03d551b9e947abd8fa725b1e98c8f6e9eb740d62d34e5d3e290
[INFO] running `Command { std: "docker" "start" "-a" "e70ea904fbf3e03d551b9e947abd8fa725b1e98c8f6e9eb740d62d34e5d3e290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e70ea904fbf3e03d551b9e947abd8fa725b1e98c8f6e9eb740d62d34e5d3e290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e70ea904fbf3e03d551b9e947abd8fa725b1e98c8f6e9eb740d62d34e5d3e290", kill_on_drop: false }`
[INFO] [stdout] e70ea904fbf3e03d551b9e947abd8fa725b1e98c8f6e9eb740d62d34e5d3e290
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 31be17e30c6516b349038f9167afdf4202538f161628863b8d4ac6b2a676abd7
[INFO] running `Command { std: "docker" "start" "-a" "31be17e30c6516b349038f9167afdf4202538f161628863b8d4ac6b2a676abd7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking xml5ever v0.16.1
[INFO] [stderr]     Checking markup5ever_rcdom v0.1.0
[INFO] [stderr]  Documenting html2text v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.59s
[INFO] running `Command { std: "docker" "inspect" "31be17e30c6516b349038f9167afdf4202538f161628863b8d4ac6b2a676abd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31be17e30c6516b349038f9167afdf4202538f161628863b8d4ac6b2a676abd7", kill_on_drop: false }`
[INFO] [stdout] 31be17e30c6516b349038f9167afdf4202538f161628863b8d4ac6b2a676abd7