[INFO] fetching crate wasm-webidl-bindings-text-parser 0.8.0...
[INFO] documenting wasm-webidl-bindings-text-parser-0.8.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate wasm-webidl-bindings-text-parser 0.8.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate wasm-webidl-bindings-text-parser 0.8.0 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 wasm-webidl-bindings-text-parser 0.8.0
[INFO] finished tweaking crates.io crate wasm-webidl-bindings-text-parser 0.8.0
[INFO] tweaked toml for crates.io crate wasm-webidl-bindings-text-parser 0.8.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stdout] 32ad4f02b94027bcc27bed4832bd900759fb9cc47dde909b32261810c69345db
[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" "32ad4f02b94027bcc27bed4832bd900759fb9cc47dde909b32261810c69345db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32ad4f02b94027bcc27bed4832bd900759fb9cc47dde909b32261810c69345db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32ad4f02b94027bcc27bed4832bd900759fb9cc47dde909b32261810c69345db", kill_on_drop: false }`
[INFO] [stdout] 32ad4f02b94027bcc27bed4832bd900759fb9cc47dde909b32261810c69345db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] c8bdd7b1d0de7b8154aa5156896291f9b22f28ba0b7cd9af2974039033705a70
[INFO] running `Command { std: "docker" "start" "-a" "c8bdd7b1d0de7b8154aa5156896291f9b22f28ba0b7cd9af2974039033705a70", kill_on_drop: false }`
[INFO] [stderr]    Compiling lalrpop-util v0.17.2
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling ena v0.13.1
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]     Checking walrus v0.15.0
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]    Compiling wasm-webidl-bindings-text-parser v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting wasm-webidl-bindings-text-parser v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122216:5
[INFO] [stdout]        |
[INFO] [stdout] 122216 |     (__0)
[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 block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122231:5
[INFO] [stdout]        |
[INFO] [stdout] 122231 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122246:5
[INFO] [stdout]        |
[INFO] [stdout] 122246 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122261:5
[INFO] [stdout]        |
[INFO] [stdout] 122261 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122276:5
[INFO] [stdout]        |
[INFO] [stdout] 122276 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122291:5
[INFO] [stdout]        |
[INFO] [stdout] 122291 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122306:5
[INFO] [stdout]        |
[INFO] [stdout] 122306 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122321:5
[INFO] [stdout]        |
[INFO] [stdout] 122321 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122336:5
[INFO] [stdout]        |
[INFO] [stdout] 122336 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122351:5
[INFO] [stdout]        |
[INFO] [stdout] 122351 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122366:5
[INFO] [stdout]        |
[INFO] [stdout] 122366 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122381:5
[INFO] [stdout]        |
[INFO] [stdout] 122381 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122396:5
[INFO] [stdout]        |
[INFO] [stdout] 122396 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:122978:5
[INFO] [stdout]        |
[INFO] [stdout] 122978 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:124266:5
[INFO] [stdout]        |
[INFO] [stdout] 124266 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]       --> /opt/rustwide/target/debug/build/wasm-webidl-bindings-text-parser-450270008c00e0e7/out/grammar.rs:124281:5
[INFO] [stdout]        |
[INFO] [stdout] 124281 |     (__0)
[INFO] [stdout]        |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.29s
[INFO] running `Command { std: "docker" "inspect" "c8bdd7b1d0de7b8154aa5156896291f9b22f28ba0b7cd9af2974039033705a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8bdd7b1d0de7b8154aa5156896291f9b22f28ba0b7cd9af2974039033705a70", kill_on_drop: false }`
[INFO] [stdout] c8bdd7b1d0de7b8154aa5156896291f9b22f28ba0b7cd9af2974039033705a70