[INFO] fetching crate avr-device 0.3.3...
[INFO] documenting avr-device-0.3.3 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate avr-device 0.3.3 into /workspace/builds/worker-117/source
[INFO] validating manifest of crates.io crate avr-device 0.3.3 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate avr-device 0.3.3
[INFO] finished tweaking crates.io crate avr-device 0.3.3
[INFO] tweaked toml for crates.io crate avr-device 0.3.3 written to /workspace/builds/worker-117/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bare-metal v0.2.5
[INFO] [stderr]   Downloaded avr-device-macros v0.3.3
[INFO] [stderr]   Downloaded vcell v0.1.3
[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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37fd1902a63dd138da93cb32d531f2244c1efd044ba286cc42113cd42ca82a6a
[INFO] running `Command { std: "docker" "start" "-a" "37fd1902a63dd138da93cb32d531f2244c1efd044ba286cc42113cd42ca82a6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37fd1902a63dd138da93cb32d531f2244c1efd044ba286cc42113cd42ca82a6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37fd1902a63dd138da93cb32d531f2244c1efd044ba286cc42113cd42ca82a6a", kill_on_drop: false }`
[INFO] [stdout] 37fd1902a63dd138da93cb32d531f2244c1efd044ba286cc42113cd42ca82a6a
[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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d8d2ea3fe3a31d2ca60613060182c8dd1c0769a8085838d40eefc00222c1731
[INFO] running `Command { std: "docker" "start" "-a" "8d8d2ea3fe3a31d2ca60613060182c8dd1c0769a8085838d40eefc00222c1731", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling avr-device v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting avr-device v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: This crate requires you to specify your target chip as a feature.
[INFO] [stdout]        
[INFO] [stdout]            Please select one of the following:
[INFO] [stdout]        
[INFO] [stdout]            * atmega1280
[INFO] [stdout]            * atmega1284p
[INFO] [stdout]            * atmega128rfa1
[INFO] [stdout]            * atmega168
[INFO] [stdout]            * atmega2560
[INFO] [stdout]            * atmega328p
[INFO] [stdout]            * atmega328pb
[INFO] [stdout]            * atmega32u4
[INFO] [stdout]            * atmega4809
[INFO] [stdout]            * atmega48p
[INFO] [stdout]            * atmega64
[INFO] [stdout]            * atmega644
[INFO] [stdout]            * atmega8
[INFO] [stdout]            * atmega8u2
[INFO] [stdout]            * attiny167
[INFO] [stdout]            * attiny1614
[INFO] [stdout]            * attiny202
[INFO] [stdout]            * attiny2313
[INFO] [stdout]            * attiny2313a
[INFO] [stdout]            * attiny816
[INFO] [stdout]            * attiny84
[INFO] [stdout]            * attiny841
[INFO] [stdout]            * attiny85
[INFO] [stdout]            * attiny861
[INFO] [stdout]            * attiny88
[INFO] [stdout]            
[INFO] [stdout]    --> src/lib.rs:105:1
[INFO] [stdout]     |
[INFO] [stdout] 105 | / compile_error!(
[INFO] [stdout] 106 | |     "This crate requires you to specify your target chip as a feature.
[INFO] [stdout] 107 | |
[INFO] [stdout] 108 | |     Please select one of the following:
[INFO] [stdout] ...   |
[INFO] [stdout] 135 | |     "
[INFO] [stdout] 136 | | );
[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:59:35
[INFO] [stdout]    |
[INFO] [stdout] 59 | #![cfg_attr(avr_device_asm_macro, feature(asm_experimental_arch))]
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 `avr-device`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name avr_device src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=cd7b8f508fe01cce -L dependency=/opt/rustwide/target/debug/deps --extern bare_metal=/opt/rustwide/target/debug/deps/libbare_metal-c6aac067dbb3de74.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-3a11b9a876968294.rmeta --extern vcell=/opt/rustwide/target/debug/deps/libvcell-87632ea7aa68e3c8.rmeta --cap-lints=warn --crate-version 0.3.3 --cfg avr_device_asm_macro` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "8d8d2ea3fe3a31d2ca60613060182c8dd1c0769a8085838d40eefc00222c1731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d8d2ea3fe3a31d2ca60613060182c8dd1c0769a8085838d40eefc00222c1731", kill_on_drop: false }`
[INFO] [stdout] 8d8d2ea3fe3a31d2ca60613060182c8dd1c0769a8085838d40eefc00222c1731