[INFO] fetching crate twitter-text 0.2.0...
[INFO] documenting twitter-text-0.2.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate twitter-text 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate twitter-text 0.2.0 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 crates.io crate twitter-text 0.2.0
[INFO] finished tweaking crates.io crate twitter-text 0.2.0
[INFO] tweaked toml for crates.io crate twitter-text 0.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 53469b4f3dfc6c64a772f2eee2a105765ff58bb0063c7b6059efed148b909231
[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" "53469b4f3dfc6c64a772f2eee2a105765ff58bb0063c7b6059efed148b909231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53469b4f3dfc6c64a772f2eee2a105765ff58bb0063c7b6059efed148b909231", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53469b4f3dfc6c64a772f2eee2a105765ff58bb0063c7b6059efed148b909231", kill_on_drop: false }`
[INFO] [stdout] 53469b4f3dfc6c64a772f2eee2a105765ff58bb0063c7b6059efed148b909231
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 2e4c3cf0b8b8603291442f985385860ca65a6c6d7ba97aebcea7aa795daff62a
[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" "2e4c3cf0b8b8603291442f985385860ca65a6c6d7ba97aebcea7aa795daff62a", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Checking twitter_text_parser v0.2.0
[INFO] [stderr]     Checking twitter_text_config v0.2.0
[INFO] [stderr]  Documenting twitter-text v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/hit_highlighter.rs:43:48
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn walk(&self, pairs: Pairs<Rule>, hits: &[(Hit)], builder: &mut HighlightBuilder) -> usize {
[INFO] [stdout]    |                                                ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/hit_highlighter.rs:89:46
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn new(text: &str, tag: &str, hits: &Vec<(Hit)>) -> HighlightBuilder {
[INFO] [stdout]    |                                              ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.10s
[INFO] running `Command { std: "docker" "inspect" "2e4c3cf0b8b8603291442f985385860ca65a6c6d7ba97aebcea7aa795daff62a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e4c3cf0b8b8603291442f985385860ca65a6c6d7ba97aebcea7aa795daff62a", kill_on_drop: false }`
[INFO] [stdout] 2e4c3cf0b8b8603291442f985385860ca65a6c6d7ba97aebcea7aa795daff62a