[INFO] fetching crate ebnf 0.1.2...
[INFO] documenting ebnf-0.1.2 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate ebnf 0.1.2 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate ebnf 0.1.2 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ebnf 0.1.2
[INFO] finished tweaking crates.io crate ebnf 0.1.2
[INFO] tweaked toml for crates.io crate ebnf 0.1.2 written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef7c769ea798c7cbbf2ac18ceee56995d5ab9a870c9b0e9d16eecd2b9e7a8c5f
[INFO] running `Command { std: "docker" "start" "-a" "ef7c769ea798c7cbbf2ac18ceee56995d5ab9a870c9b0e9d16eecd2b9e7a8c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef7c769ea798c7cbbf2ac18ceee56995d5ab9a870c9b0e9d16eecd2b9e7a8c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef7c769ea798c7cbbf2ac18ceee56995d5ab9a870c9b0e9d16eecd2b9e7a8c5f", kill_on_drop: false }`
[INFO] [stdout] ef7c769ea798c7cbbf2ac18ceee56995d5ab9a870c9b0e9d16eecd2b9e7a8c5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3f91eac5f192f4622f0ca4d34768ebe7e59ac2f6495952fe31b75967ae43354
[INFO] running `Command { std: "docker" "start" "-a" "f3f91eac5f192f4622f0ca4d34768ebe7e59ac2f6495952fe31b75967ae43354", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking utf8-width v0.1.6
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking html-escape v0.2.11
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking parse-hyperlinks v0.23.3
[INFO] [stderr]  Documenting ebnf v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.27s
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/parser.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |         Ok(((s, regex_ext_kind))) => {
[INFO] [stdout]    |            ^                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 88 -         Ok(((s, regex_ext_kind))) => {
[INFO] [stdout] 88 +         Ok((s, regex_ext_kind)) => {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f3f91eac5f192f4622f0ca4d34768ebe7e59ac2f6495952fe31b75967ae43354", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3f91eac5f192f4622f0ca4d34768ebe7e59ac2f6495952fe31b75967ae43354", kill_on_drop: false }`
[INFO] [stdout] f3f91eac5f192f4622f0ca4d34768ebe7e59ac2f6495952fe31b75967ae43354
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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" "RUSTFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 342ce87b1e048d01d1ce378952c4910c8e043970a2a94d5e6822d3133e27099a
[INFO] running `Command { std: "docker" "start" "-a" "342ce87b1e048d01d1ce378952c4910c8e043970a2a94d5e6822d3133e27099a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking utf8-width v0.1.6
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking html-escape v0.2.11
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking parse-hyperlinks v0.23.3
[INFO] [stderr]  Documenting ebnf v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/parser.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |         Ok(((s, regex_ext_kind))) => {
[INFO] [stdout]    |            ^                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 88 -         Ok(((s, regex_ext_kind))) => {
[INFO] [stdout] 88 +         Ok((s, regex_ext_kind)) => {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.04s
[INFO] running `Command { std: "docker" "inspect" "342ce87b1e048d01d1ce378952c4910c8e043970a2a94d5e6822d3133e27099a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "342ce87b1e048d01d1ce378952c4910c8e043970a2a94d5e6822d3133e27099a", kill_on_drop: false }`
[INFO] [stdout] 342ce87b1e048d01d1ce378952c4910c8e043970a2a94d5e6822d3133e27099a