[INFO] fetching crate stm32f429x 0.3.1...
[INFO] documenting stm32f429x-0.3.1 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate stm32f429x 0.3.1 into /workspace/builds/worker-74/source
[INFO] validating manifest of crates.io crate stm32f429x 0.3.1 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] started tweaking crates.io crate stm32f429x 0.3.1
[INFO] finished tweaking crates.io crate stm32f429x 0.3.1
[INFO] tweaked toml for crates.io crate stm32f429x 0.3.1 written to /workspace/builds/worker-74/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] 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 cortex-m-semihosting v0.1.3
[INFO] [stderr]   Downloaded cortex-m v0.2.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] 5b271b8b4fb0475489c5d600feefcbb7b376a8bb71ea89c52334d69ee37833bc
[INFO] running `Command { std: "docker" "start" "-a" "5b271b8b4fb0475489c5d600feefcbb7b376a8bb71ea89c52334d69ee37833bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b271b8b4fb0475489c5d600feefcbb7b376a8bb71ea89c52334d69ee37833bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b271b8b4fb0475489c5d600feefcbb7b376a8bb71ea89c52334d69ee37833bc", kill_on_drop: false }`
[INFO] [stdout] 5b271b8b4fb0475489c5d600feefcbb7b376a8bb71ea89c52334d69ee37833bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] 817371ce63527ffd7f7c9bc1117abc1c5a54d4822f432b9752ebec63b9a69773
[INFO] running `Command { std: "docker" "start" "-a" "817371ce63527ffd7f7c9bc1117abc1c5a54d4822f432b9752ebec63b9a69773", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cortex-m v0.2.12
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking aligned v0.1.2
[INFO] [stderr]     Checking cortex-m-semihosting v0.1.3
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aligned-0.1.2/src/lib.rs:32:43
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![cfg_attr(feature = "const-fn", feature(const_fn))]
[INFO] [stdout]    |                                           ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aligned-0.1.2/src/lib.rs:32:35
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![cfg_attr(feature = "const-fn", feature(const_fn))]
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-semihosting-0.1.3/src/lib.rs:105:1
[INFO] [stdout]     |
[INFO] [stdout] 105 | #![feature(asm)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr] error: could not compile `cortex-m-semihosting` due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "817371ce63527ffd7f7c9bc1117abc1c5a54d4822f432b9752ebec63b9a69773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "817371ce63527ffd7f7c9bc1117abc1c5a54d4822f432b9752ebec63b9a69773", kill_on_drop: false }`
[INFO] [stdout] 817371ce63527ffd7f7c9bc1117abc1c5a54d4822f432b9752ebec63b9a69773
