[INFO] fetching crate wasm-bindgen-test-crate-b 0.1.0...
[INFO] documenting wasm-bindgen-test-crate-b-0.1.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate wasm-bindgen-test-crate-b 0.1.0 into /workspace/builds/worker-47/source
[INFO] validating manifest of crates.io crate wasm-bindgen-test-crate-b 0.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasm-bindgen-test-crate-b 0.1.0
[INFO] finished tweaking crates.io crate wasm-bindgen-test-crate-b 0.1.0
[INFO] tweaked toml for crates.io crate wasm-bindgen-test-crate-b 0.1.0 written to /workspace/builds/worker-47/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ce619ed06b42fcdb9a189dd40ef8fc090ff5327c48eae6fd66b76aa93d4a1b9
[INFO] running `Command { std: "docker" "start" "-a" "0ce619ed06b42fcdb9a189dd40ef8fc090ff5327c48eae6fd66b76aa93d4a1b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ce619ed06b42fcdb9a189dd40ef8fc090ff5327c48eae6fd66b76aa93d4a1b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ce619ed06b42fcdb9a189dd40ef8fc090ff5327c48eae6fd66b76aa93d4a1b9", kill_on_drop: false }`
[INFO] [stdout] 0ce619ed06b42fcdb9a189dd40ef8fc090ff5327c48eae6fd66b76aa93d4a1b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c8a176cc1baa06c8ecdbbbb69411e2f3dcc93771b2d1189b2c322685d4a46f4
[INFO] running `Command { std: "docker" "start" "-a" "1c8a176cc1baa06c8ecdbbbb69411e2f3dcc93771b2d1189b2c322685d4a46f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.75
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.75
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.75
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.75
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.75
[INFO] [stderr]  Documenting wasm-bindgen-test-crate-b v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unknown attribute
[INFO] [stdout]  --> src/lib.rs:7:57
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[wasm_bindgen(module = "tests/wasm/duplicate_deps.js", version = "*")]
[INFO] [stdout]   |                                                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(use_extern_macros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `wasm-bindgen-test-crate-b`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name wasm_bindgen_test_crate_b src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern wasm_bindgen=/opt/rustwide/target/debug/deps/libwasm_bindgen-f39ea4f2d9dd9297.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "1c8a176cc1baa06c8ecdbbbb69411e2f3dcc93771b2d1189b2c322685d4a46f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c8a176cc1baa06c8ecdbbbb69411e2f3dcc93771b2d1189b2c322685d4a46f4", kill_on_drop: false }`
[INFO] [stdout] 1c8a176cc1baa06c8ecdbbbb69411e2f3dcc93771b2d1189b2c322685d4a46f4
