[INFO] fetching crate cfgcomment-core 0.3.0...
[INFO] documenting cfgcomment-core-0.3.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate cfgcomment-core 0.3.0 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate cfgcomment-core 0.3.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cfgcomment-core 0.3.0
[INFO] finished tweaking crates.io crate cfgcomment-core 0.3.0
[INFO] tweaked toml for crates.io crate cfgcomment-core 0.3.0 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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" "+1.61.0" "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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f99871d5b34b7bd2a39c27ab4dbf90d2b82c13fdc51b9830bce9591c4a9e934
[INFO] running `Command { std: "docker" "start" "-a" "8f99871d5b34b7bd2a39c27ab4dbf90d2b82c13fdc51b9830bce9591c4a9e934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f99871d5b34b7bd2a39c27ab4dbf90d2b82c13fdc51b9830bce9591c4a9e934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f99871d5b34b7bd2a39c27ab4dbf90d2b82c13fdc51b9830bce9591c4a9e934", kill_on_drop: false }`
[INFO] [stdout] 8f99871d5b34b7bd2a39c27ab4dbf90d2b82c13fdc51b9830bce9591c4a9e934
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e12c3e06393365d63dc19e3a567a98383267203d45eb33258cc53462d85374ab
[INFO] running `Command { std: "docker" "start" "-a" "e12c3e06393365d63dc19e3a567a98383267203d45eb33258cc53462d85374ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]    Compiling peg-macros v0.7.0
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking peg v0.7.0
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]  Documenting cfgcomment-core v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.74s
[INFO] running `Command { std: "docker" "inspect" "e12c3e06393365d63dc19e3a567a98383267203d45eb33258cc53462d85374ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e12c3e06393365d63dc19e3a567a98383267203d45eb33258cc53462d85374ab", kill_on_drop: false }`
[INFO] [stdout] e12c3e06393365d63dc19e3a567a98383267203d45eb33258cc53462d85374ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] dcd5d2f1aadfd5126b64a21eef6d272dc8b050d3fb7997cda4175ab16644a5ba
[INFO] running `Command { std: "docker" "start" "-a" "dcd5d2f1aadfd5126b64a21eef6d272dc8b050d3fb7997cda4175ab16644a5ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]    Compiling peg-macros v0.7.0
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking peg v0.7.0
[INFO] [stderr]  Documenting cfgcomment-core v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of "!", "#", "##", "$", "&", "(", "/", ";", "<", "@", "crate", "expected", "position", "precedence", "pub", "quiet", "rule", "use", "}"
[INFO] [stdout]   --> src/lib.rs:55:1
[INFO] [stdout]    |
[INFO] [stdout] 55 | / peg::parser! {
[INFO] [stdout] 56 | |     grammar cfg() for str {
[INFO] [stdout] 57 | |         pub(crate) rule cfg() -> CfgTag
[INFO] [stdout] 58 | |             = "[" _ "cfg" _ "(" _ "end" _ ")" _ "]" {CfgTag::End}
[INFO] [stdout] ...  |
[INFO] [stdout] 75 | |     }
[INFO] [stdout] 76 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `peg::parser` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `cfgcomment-core`
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name cfgcomment_core src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat -Z unstable-options --document-private-items -C metadata=d841d7900a1fbd13 -L dependency=/opt/rustwide/target/debug/deps --extern ignore=/opt/rustwide/target/debug/deps/libignore-f83c2f35466c8e06.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-11fcf639aa746c8b.rmeta --extern peg=/opt/rustwide/target/debug/deps/libpeg-59e2d5b590128522.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-14514afe1b15d91e.rmeta --extern-html-root-url 'ignore=https://docs.rs/ignore/0.4.18/' --extern-html-root-url 'log=https://docs.rs/log/0.4.17/' --extern-html-root-url 'peg=https://docs.rs/peg/0.7.0/' --extern-html-root-url 'tempfile=https://docs.rs/tempfile/3.3.0/' -Zunstable-options --crate-version 0.3.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "dcd5d2f1aadfd5126b64a21eef6d272dc8b050d3fb7997cda4175ab16644a5ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcd5d2f1aadfd5126b64a21eef6d272dc8b050d3fb7997cda4175ab16644a5ba", kill_on_drop: false }`
[INFO] [stdout] dcd5d2f1aadfd5126b64a21eef6d272dc8b050d3fb7997cda4175ab16644a5ba