[INFO] fetching crate stm32l432xx-hal 0.2.7...
[INFO] documenting stm32l432xx-hal-0.2.7 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate stm32l432xx-hal 0.2.7 into /workspace/builds/worker-117/source
[INFO] validating manifest of crates.io crate stm32l432xx-hal 0.2.7 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-117/source/.cargo/config
[INFO] started tweaking crates.io crate stm32l432xx-hal 0.2.7
[INFO] finished tweaking crates.io crate stm32l432xx-hal 0.2.7
[INFO] tweaked toml for crates.io crate stm32l432xx-hal 0.2.7 written to /workspace/builds/worker-117/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-2021-08-01" "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 stm32l4 v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74eb88448a9907869852ecb950b30a7a0b384d46567a3d8b238bbc3cdf8ee13a
[INFO] running `Command { std: "docker" "start" "-a" "74eb88448a9907869852ecb950b30a7a0b384d46567a3d8b238bbc3cdf8ee13a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74eb88448a9907869852ecb950b30a7a0b384d46567a3d8b238bbc3cdf8ee13a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74eb88448a9907869852ecb950b30a7a0b384d46567a3d8b238bbc3cdf8ee13a", kill_on_drop: false }`
[INFO] [stdout] 74eb88448a9907869852ecb950b30a7a0b384d46567a3d8b238bbc3cdf8ee13a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f79a8dcb5e5aab4dfd9f6e080ddbd7cda6e7cd2ee80891b2501f8d18c14ae5ed
[INFO] running `Command { std: "docker" "start" "-a" "f79a8dcb5e5aab4dfd9f6e080ddbd7cda6e7cd2ee80891b2501f8d18c14ae5ed", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling cortex-m v0.7.3
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.15
[INFO] [stderr]    Compiling cortex-m v0.5.11
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling stm32l4 v0.3.2
[INFO] [stderr]     Checking aligned v0.2.0
[INFO] [stderr]     Checking typenum v1.13.0
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking embedded-hal v0.2.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking generic-array v0.14.4
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking aligned v0.3.5
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.6.15
[INFO] [stderr]  Documenting stm32l432xx-hal v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(unsize)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[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] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `stm32l432xx-hal`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name stm32l432xx_hal 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 cast=/opt/rustwide/target/debug/deps/libcast-758987da38b02955.rmeta --extern cortex_m=/opt/rustwide/target/debug/deps/libcortex_m-0f5cab7892213d78.rmeta --extern embedded_hal=/opt/rustwide/target/debug/deps/libembedded_hal-de41a769949c6abd.rmeta --extern nb=/opt/rustwide/target/debug/deps/libnb-b24614f579572ed0.rmeta --extern stm32l4=/opt/rustwide/target/debug/deps/libstm32l4-42a924f8a84254e8.rmeta --extern void=/opt/rustwide/target/debug/deps/libvoid-cb0463d7e0a202f8.rmeta --cap-lints=warn --crate-version 0.2.7` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f79a8dcb5e5aab4dfd9f6e080ddbd7cda6e7cd2ee80891b2501f8d18c14ae5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f79a8dcb5e5aab4dfd9f6e080ddbd7cda6e7cd2ee80891b2501f8d18c14ae5ed", kill_on_drop: false }`
[INFO] [stdout] f79a8dcb5e5aab4dfd9f6e080ddbd7cda6e7cd2ee80891b2501f8d18c14ae5ed
