[INFO] fetching crate variant-config 0.1.4...
[INFO] documenting variant-config-0.1.4 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate variant-config 0.1.4 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate variant-config 0.1.4 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 variant-config 0.1.4
[INFO] finished tweaking crates.io crate variant-config 0.1.4
[INFO] tweaked toml for crates.io crate variant-config 0.1.4 written to /workspace/builds/worker-30/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] 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-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 9c1266b11c3d75acb437536386844175a70df974f9aa3f4daac759520e8a2104
[INFO] running `Command { std: "docker" "start" "-a" "9c1266b11c3d75acb437536386844175a70df974f9aa3f4daac759520e8a2104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c1266b11c3d75acb437536386844175a70df974f9aa3f4daac759520e8a2104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c1266b11c3d75acb437536386844175a70df974f9aa3f4daac759520e8a2104", kill_on_drop: false }`
[INFO] [stdout] 9c1266b11c3d75acb437536386844175a70df974f9aa3f4daac759520e8a2104
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] f7ef62c0bbfcb9fe9b95dd5fd147e6d5cc38e7e5f229bc651958719b0a4741b9
[INFO] running `Command { std: "docker" "start" "-a" "f7ef62c0bbfcb9fe9b95dd5fd147e6d5cc38e7e5f229bc651958719b0a4741b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.80.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling target-lexicon v0.12.4
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking cranelift-entity v0.80.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling peg-runtime v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.80.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking cranelift-bforest v0.80.1
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking regalloc v0.0.33
[INFO] [stderr]    Compiling peg-macros v0.8.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]     Checking peg v0.8.0
[INFO] [stderr]    Compiling cranelift-codegen v0.80.1
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking cranelift-frontend v0.80.1
[INFO] [stderr]     Checking cranelift-native v0.80.1
[INFO] [stderr]     Checking cranelift-module v0.80.1
[INFO] [stderr]     Checking cranelift-jit v0.80.1
[INFO] [stderr]     Checking cranelift v0.80.1
[INFO] [stderr]     Checking serde_yaml v0.8.24
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]  Documenting variant-config v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.95s
[INFO] running `Command { std: "docker" "inspect" "f7ef62c0bbfcb9fe9b95dd5fd147e6d5cc38e7e5f229bc651958719b0a4741b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7ef62c0bbfcb9fe9b95dd5fd147e6d5cc38e7e5f229bc651958719b0a4741b9", kill_on_drop: false }`
[INFO] [stdout] f7ef62c0bbfcb9fe9b95dd5fd147e6d5cc38e7e5f229bc651958719b0a4741b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 99fa525e064a24061128afb6663ac3bb91656e0f733b85797ff673fc7be94ce7
[INFO] running `Command { std: "docker" "start" "-a" "99fa525e064a24061128afb6663ac3bb91656e0f733b85797ff673fc7be94ce7", 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] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.80.1
[INFO] [stderr]    Compiling target-lexicon v0.12.4
[INFO] [stderr]     Checking cranelift-entity v0.80.1
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]    Compiling peg-runtime v0.8.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.80.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking cranelift-bforest v0.80.1
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking regalloc v0.0.33
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]    Compiling peg-macros v0.8.0
[INFO] [stderr]     Checking hashbrown v0.12.1
[INFO] [stderr]    Compiling cranelift-codegen v0.80.1
[INFO] [stderr]     Checking peg v0.8.0
[INFO] [stderr]     Checking cranelift-frontend v0.80.1
[INFO] [stderr]     Checking cranelift-module v0.80.1
[INFO] [stderr]     Checking cranelift-native v0.80.1
[INFO] [stderr]     Checking cranelift-jit v0.80.1
[INFO] [stderr]     Checking cranelift v0.80.1
[INFO] [stderr]     Checking serde_yaml v0.8.24
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]  Documenting variant-config v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of "!", "##", "$", "&", "(", "--", "@", "expected", "position", "precedence", "quiet", "}"
[INFO] [stdout]   --> src/dsl/frontend.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | / peg::parser!(pub grammar parser() for str {
[INFO] [stdout] 23 | |     pub rule statements() -> Vec<Expr>
[INFO] [stdout] 24 | |         = quiet!{ s:(statement()*) { s } }
[INFO] [stdout] 25 | |         / expected!("statements")
[INFO] [stdout] ...  |
[INFO] [stdout] 94 | |     rule _() =  quiet!{[' ' | '\t']*}
[INFO] [stdout] 95 | | });
[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 `variant-config`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-type cdylib --crate-name variant_config 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=9ed7d4de04c697f7 -L dependency=/opt/rustwide/target/debug/deps --extern ahash=/opt/rustwide/target/debug/deps/libahash-2e2aecb110d84347.rmeta --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-0657bc08aa8032ee.rmeta --extern cranelift=/opt/rustwide/target/debug/deps/libcranelift-1fd199a6272cbb2f.rmeta --extern cranelift_jit=/opt/rustwide/target/debug/deps/libcranelift_jit-f054bd92345ae5fd.rmeta --extern cranelift_module=/opt/rustwide/target/debug/deps/libcranelift_module-164ed37efc4f7a0b.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-8ab4c3499cd9084f.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-d19aa497b9fc9a96.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-0b61054b794719d9.rmeta --extern peg=/opt/rustwide/target/debug/deps/libpeg-3fe4a890e4b85ad3.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-1a8241bae34a0cf7.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-71fd310839342657.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-3035ac587dd44423.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-9b7887ddbcaea7fc.rmeta --extern-html-root-url 'ahash=https://docs.rs/ahash/0.7.6/' --extern-html-root-url 'anyhow=https://docs.rs/anyhow/1.0.57/' --extern-html-root-url 'cranelift=https://docs.rs/cranelift/0.80.1/' --extern-html-root-url 'cranelift_jit=https://docs.rs/cranelift-jit/0.80.1/' --extern-html-root-url 'cranelift_module=https://docs.rs/cranelift-module/0.80.1/' --extern-html-root-url 'crossbeam_channel=https://docs.rs/crossbeam-channel/0.5.4/' --extern-html-root-url 'hashbrown=https://docs.rs/hashbrown/0.12.1/' --extern-html-root-url 'log=https://docs.rs/log/0.4.17/' --extern-html-root-url 'peg=https://docs.rs/peg/0.8.0/' --extern-html-root-url 'serde=https://docs.rs/serde/1.0.137/' --extern-html-root-url 'serde_json=https://docs.rs/serde_json/1.0.81/' --extern-html-root-url 'serde_yaml=https://docs.rs/serde_yaml/0.8.24/' --extern-html-root-url 'toml=https://docs.rs/toml/0.5.9/' -Zunstable-options --crate-version 0.1.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "99fa525e064a24061128afb6663ac3bb91656e0f733b85797ff673fc7be94ce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99fa525e064a24061128afb6663ac3bb91656e0f733b85797ff673fc7be94ce7", kill_on_drop: false }`
[INFO] [stdout] 99fa525e064a24061128afb6663ac3bb91656e0f733b85797ff673fc7be94ce7