[INFO] fetching crate mikino_api 0.9.1...
[INFO] documenting mikino_api-0.9.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate mikino_api 0.9.1 into /workspace/builds/worker-35/source
[INFO] validating manifest of crates.io crate mikino_api 0.9.1 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 mikino_api 0.9.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mikino_api 0.9.1
[INFO] tweaked toml for crates.io crate mikino_api 0.9.1 written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] crate crates.io crate mikino_api 0.9.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] d932ac10babb83f5afcb1d1980c9cbb2b0f95b3380c85bee7dc39c3000346ddc
[INFO] running `Command { std: "docker" "start" "-a" "d932ac10babb83f5afcb1d1980c9cbb2b0f95b3380c85bee7dc39c3000346ddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d932ac10babb83f5afcb1d1980c9cbb2b0f95b3380c85bee7dc39c3000346ddc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d932ac10babb83f5afcb1d1980c9cbb2b0f95b3380c85bee7dc39c3000346ddc", kill_on_drop: false }`
[INFO] [stdout] d932ac10babb83f5afcb1d1980c9cbb2b0f95b3380c85bee7dc39c3000346ddc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] bf92a3f7363e33d581d23d09c616cee93c780fc9dba1114e1cd65566f410e2e4
[INFO] running `Command { std: "docker" "start" "-a" "bf92a3f7363e33d581d23d09c616cee93c780fc9dba1114e1cd65566f410e2e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling peg-runtime v0.8.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking object v0.28.3
[INFO] [stderr]    Compiling peg-macros v0.8.0
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking num-complex v0.4.1
[INFO] [stderr]     Checking peg v0.8.0
[INFO] [stderr]    Compiling readonly v0.2.1
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking rsmt2 v0.16.0
[INFO] [stderr]  Documenting mikino_api v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.21s
[INFO] running `Command { std: "docker" "inspect" "bf92a3f7363e33d581d23d09c616cee93c780fc9dba1114e1cd65566f410e2e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf92a3f7363e33d581d23d09c616cee93c780fc9dba1114e1cd65566f410e2e4", kill_on_drop: false }`
[INFO] [stdout] bf92a3f7363e33d581d23d09c616cee93c780fc9dba1114e1cd65566f410e2e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "--all-features" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 4131a4c764ab123fabf4da10ea95f36987c823468a0ddbd640ee10e386e9dcc3
[INFO] running `Command { std: "docker" "start" "-a" "4131a4c764ab123fabf4da10ea95f36987c823468a0ddbd640ee10e386e9dcc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling peg-runtime v0.8.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking object v0.28.3
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling peg-macros v0.8.0
[INFO] [stderr]     Checking num-complex v0.4.1
[INFO] [stderr]     Checking peg v0.8.0
[INFO] [stderr]    Compiling readonly v0.2.1
[INFO] [stderr]     Checking rsmt2 v0.16.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]  Documenting mikino_api v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of "!", "##", "$", "&", "(", "--", "@", "expected", "position", "precedence", "quiet", "}"
[INFO] [stdout]     --> src/parse.rs:195:1
[INFO] [stdout]      |
[INFO] [stdout] 195  | / peg::parser! {
[INFO] [stdout] 196  | |     /// PEG parsing rules, requires the `parser` feature.
[INFO] [stdout] 197  | |     ///
[INFO] [stdout] 198  | |     /// The [`crate::TRANS_DEMO`] constant illustrates and discusses the syntax expected by the
[INFO] [stdout] ...    |
[INFO] [stdout] 1102 | |     }
[INFO] [stdout] 1103 | | }
[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] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `mikino_api`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name mikino_api 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=7939b46612efd39e -L dependency=/opt/rustwide/target/debug/deps --extern either=/opt/rustwide/target/debug/deps/libeither-ad1849c1089dcfe8.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-dade9b74e19b9ecd.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-b79e987c858b7fbb.rmeta --extern peg=/opt/rustwide/target/debug/deps/libpeg-c99ebd353c7b62c4.rmeta --extern readonly=/opt/rustwide/target/debug/deps/libreadonly-158a6dc209797d80.so --extern rsmt2=/opt/rustwide/target/debug/deps/librsmt2-9b0afc544bfc3692.rmeta --extern-html-root-url 'either=https://docs.rs/either/1.6.1/' --extern-html-root-url 'error_chain=https://docs.rs/error-chain/0.12.4/' --extern-html-root-url 'lazy_static=https://docs.rs/lazy_static/1.4.0/' --extern-html-root-url 'num=https://docs.rs/num/0.4.0/' --extern-html-root-url 'peg=https://docs.rs/peg/0.8.0/' --extern-html-root-url 'readonly=https://docs.rs/readonly/0.2.1/' --extern-html-root-url 'rsmt2=https://docs.rs/rsmt2/0.16.0/' -Zunstable-options --crate-version 0.9.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "4131a4c764ab123fabf4da10ea95f36987c823468a0ddbd640ee10e386e9dcc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4131a4c764ab123fabf4da10ea95f36987c823468a0ddbd640ee10e386e9dcc3", kill_on_drop: false }`
[INFO] [stdout] 4131a4c764ab123fabf4da10ea95f36987c823468a0ddbd640ee10e386e9dcc3