[INFO] fetching crate transvec 0.3.7...
[INFO] documenting transvec-0.3.7 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate transvec 0.3.7 into /workspace/builds/worker-32/source
[INFO] validating manifest of crates.io crate transvec 0.3.7 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 transvec 0.3.7
[INFO] finished tweaking crates.io crate transvec 0.3.7
[INFO] tweaked toml for crates.io crate transvec 0.3.7 written to /workspace/builds/worker-32/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-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] 217cbca202aea816ca6b61f2117f712204fcfce3ce1bf606cee86309a9cf78af
[INFO] running `Command { std: "docker" "start" "-a" "217cbca202aea816ca6b61f2117f712204fcfce3ce1bf606cee86309a9cf78af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "217cbca202aea816ca6b61f2117f712204fcfce3ce1bf606cee86309a9cf78af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "217cbca202aea816ca6b61f2117f712204fcfce3ce1bf606cee86309a9cf78af", kill_on_drop: false }`
[INFO] [stdout] 217cbca202aea816ca6b61f2117f712204fcfce3ce1bf606cee86309a9cf78af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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] 1ce41b7dc4fa61016ea41f003350a6d4a2d1829ba796275384f4adf2babcac5d
[INFO] running `Command { std: "docker" "start" "-a" "1ce41b7dc4fa61016ea41f003350a6d4a2d1829ba796275384f4adf2babcac5d", kill_on_drop: false }`
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]  Documenting transvec v0.3.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:48
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "allocator_api", feature(allocator_api))]
[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 `transvec`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name transvec src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="allocator_api"' --cfg 'feature="default"' --cfg 'feature="std"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=42106a38aa6328ca -L dependency=/opt/rustwide/target/debug/deps --extern bytemuck=/opt/rustwide/target/debug/deps/libbytemuck-975224db67a400db.rmeta --cap-lints=warn --crate-version 0.3.7` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "1ce41b7dc4fa61016ea41f003350a6d4a2d1829ba796275384f4adf2babcac5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ce41b7dc4fa61016ea41f003350a6d4a2d1829ba796275384f4adf2babcac5d", kill_on_drop: false }`
[INFO] [stdout] 1ce41b7dc4fa61016ea41f003350a6d4a2d1829ba796275384f4adf2babcac5d