[INFO] fetching crate fuzzcheck_common 0.12.0...
[INFO] documenting fuzzcheck_common-0.12.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate fuzzcheck_common 0.12.0 into /workspace/builds/worker-103/source
[INFO] validating manifest of crates.io crate fuzzcheck_common 0.12.0 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 fuzzcheck_common 0.12.0
[INFO] finished tweaking crates.io crate fuzzcheck_common 0.12.0
[INFO] tweaked toml for crates.io crate fuzzcheck_common 0.12.0 written to /workspace/builds/worker-103/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-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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] dca16a77acaf066def3686f4fb35a2e18355245fd1b183620d4edf338274e604
[INFO] running `Command { std: "docker" "start" "-a" "dca16a77acaf066def3686f4fb35a2e18355245fd1b183620d4edf338274e604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dca16a77acaf066def3686f4fb35a2e18355245fd1b183620d4edf338274e604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dca16a77acaf066def3686f4fb35a2e18355245fd1b183620d4edf338274e604", kill_on_drop: false }`
[INFO] [stdout] dca16a77acaf066def3686f4fb35a2e18355245fd1b183620d4edf338274e604
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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] 52ec328074451c2586524e4b1d1e84a3c89f272a9ace4f64bbd40fa0dcfc4cc7
[INFO] running `Command { std: "docker" "start" "-a" "52ec328074451c2586524e4b1d1e84a3c89f272a9ace4f64bbd40fa0dcfc4cc7", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]  Documenting fuzzcheck_common v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(no_coverage)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `fuzzcheck_common`
[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] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name fuzzcheck_common src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c931f7097cfb45c3 -L dependency=/opt/rustwide/target/debug/deps --extern getopts=/opt/rustwide/target/debug/deps/libgetopts-b0e2cb3d9e517cdf.rmeta --cap-lints=warn --crate-version 0.12.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "52ec328074451c2586524e4b1d1e84a3c89f272a9ace4f64bbd40fa0dcfc4cc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ec328074451c2586524e4b1d1e84a3c89f272a9ace4f64bbd40fa0dcfc4cc7", kill_on_drop: false }`
[INFO] [stdout] 52ec328074451c2586524e4b1d1e84a3c89f272a9ace4f64bbd40fa0dcfc4cc7