[INFO] fetching crate avr_delay 0.3.2...
[INFO] documenting avr_delay-0.3.2 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate avr_delay 0.3.2 into /workspace/builds/worker-117/source
[INFO] validating manifest of crates.io crate avr_delay 0.3.2 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 avr_delay 0.3.2
[INFO] finished tweaking crates.io crate avr_delay 0.3.2
[INFO] tweaked toml for crates.io crate avr_delay 0.3.2 written to /workspace/builds/worker-117/source/Cargo.toml
[INFO] crate crates.io crate avr_delay 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const_env--value v0.1.2
[INFO] [stderr]   Downloaded const_env_impl--value v0.1.2
[INFO] [stderr]   Downloaded avr-std-stub v1.0.2
[INFO] [stderr]   Downloaded avr-config v2.0.1
[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] da5ce5e9b4cbbaa868db9fd6e978768f97dc84b9551f39fe8696f8ebe170db09
[INFO] running `Command { std: "docker" "start" "-a" "da5ce5e9b4cbbaa868db9fd6e978768f97dc84b9551f39fe8696f8ebe170db09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da5ce5e9b4cbbaa868db9fd6e978768f97dc84b9551f39fe8696f8ebe170db09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da5ce5e9b4cbbaa868db9fd6e978768f97dc84b9551f39fe8696f8ebe170db09", kill_on_drop: false }`
[INFO] [stdout] da5ce5e9b4cbbaa868db9fd6e978768f97dc84b9551f39fe8696f8ebe170db09
[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] ca36fdd22e07d2ba98b3e625d2ad2f652045deef11eae867aea7ea42e45173d0
[INFO] running `Command { std: "docker" "start" "-a" "ca36fdd22e07d2ba98b3e625d2ad2f652045deef11eae867aea7ea42e45173d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling const_env_impl--value v0.1.2
[INFO] [stderr]    Compiling const_env--value v0.1.2
[INFO] [stderr]     Checking avr-config v2.0.1
[INFO] [stderr]  Documenting avr_delay v0.3.2 (/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(llvm_asm)]
[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 `avr_delay`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name avr_delay 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 avr_config=/opt/rustwide/target/debug/deps/libavr_config-2d0f2691ca3ed22e.rmeta --cap-lints=warn --crate-version 0.3.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ca36fdd22e07d2ba98b3e625d2ad2f652045deef11eae867aea7ea42e45173d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca36fdd22e07d2ba98b3e625d2ad2f652045deef11eae867aea7ea42e45173d0", kill_on_drop: false }`
[INFO] [stdout] ca36fdd22e07d2ba98b3e625d2ad2f652045deef11eae867aea7ea42e45173d0
