[INFO] fetching crate pciids 0.1.4...
[INFO] documenting pciids-0.1.4 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate pciids 0.1.4 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate pciids 0.1.4 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 pciids 0.1.4
[INFO] finished tweaking crates.io crate pciids 0.1.4
[INFO] tweaked toml for crates.io crate pciids 0.1.4 written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] crate crates.io crate pciids 0.1.4 already has a lockfile, it will not be regenerated
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v2.33.1
[INFO] [stderr]   Downloaded paw v1.0.0
[INFO] [stderr]   Downloaded proc-macro-error-attr v1.0.3
[INFO] [stderr]   Downloaded proc-macro-error v1.0.3
[INFO] [stderr]   Downloaded structopt v0.3.15
[INFO] [stderr]   Downloaded paw-attributes v1.0.2
[INFO] [stderr]   Downloaded paw-raw v1.0.0
[INFO] [stderr]   Downloaded structopt-derive v0.4.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 23c39d9dd370965807b23fce64a732fa0e751be8cbf39b99b79fdb0da3d427bf
[INFO] running `Command { std: "docker" "start" "-a" "23c39d9dd370965807b23fce64a732fa0e751be8cbf39b99b79fdb0da3d427bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23c39d9dd370965807b23fce64a732fa0e751be8cbf39b99b79fdb0da3d427bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23c39d9dd370965807b23fce64a732fa0e751be8cbf39b99b79fdb0da3d427bf", kill_on_drop: false }`
[INFO] [stdout] 23c39d9dd370965807b23fce64a732fa0e751be8cbf39b99b79fdb0da3d427bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 5b9dd9db90297c2985dbc8aa19e78a1484c93727fac32d2eaa910812f12072ce
[INFO] running `Command { std: "docker" "start" "-a" "5b9dd9db90297c2985dbc8aa19e78a1484c93727fac32d2eaa910812f12072ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]  Documenting pciids v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `pciids`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name pciids src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=44e78088414b070f -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-dbce760580586821.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-eec97c1961a0fb68.rmeta --extern pest=/opt/rustwide/target/debug/deps/libpest-ad621116ccc3017c.rmeta --extern pest_derive=/opt/rustwide/target/debug/deps/libpest_derive-fe50ce301301eae6.so --cap-lints=warn --crate-version 0.1.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5b9dd9db90297c2985dbc8aa19e78a1484c93727fac32d2eaa910812f12072ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b9dd9db90297c2985dbc8aa19e78a1484c93727fac32d2eaa910812f12072ce", kill_on_drop: false }`
[INFO] [stdout] 5b9dd9db90297c2985dbc8aa19e78a1484c93727fac32d2eaa910812f12072ce