[INFO] fetching crate avr-device 0.3.1...
[INFO] testing avr-device-0.3.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate avr-device 0.3.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate avr-device 0.3.1 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 avr-device 0.3.1
[INFO] finished tweaking crates.io crate avr-device 0.3.1
[INFO] tweaked toml for crates.io crate avr-device 0.3.1 written to /workspace/builds/worker-2/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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d3b755776d005a4a38e8cf52d78586736536408ad42d7335f84bdd13617fe49b
[INFO] running `Command { std: "docker" "start" "-a" "d3b755776d005a4a38e8cf52d78586736536408ad42d7335f84bdd13617fe49b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3b755776d005a4a38e8cf52d78586736536408ad42d7335f84bdd13617fe49b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3b755776d005a4a38e8cf52d78586736536408ad42d7335f84bdd13617fe49b", kill_on_drop: false }`
[INFO] [stdout] d3b755776d005a4a38e8cf52d78586736536408ad42d7335f84bdd13617fe49b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "RUSTFLAGS=--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" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 834f0c4aa841feb5adf60012a287af5977a22942f870538872e695fefb65e656
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "834f0c4aa841feb5adf60012a287af5977a22942f870538872e695fefb65e656", kill_on_drop: false }`
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling avr-device v0.3.1 (/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]     * 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]     * attiny84
[INFO] [stdout]     * attiny841
[INFO] [stdout]     * attiny85
[INFO] [stdout]     * attiny861
[INFO] [stdout]     * attiny88
[INFO] [stdout]     
[INFO] [stdout]    --> src/lib.rs:88:1
[INFO] [stdout]     |
[INFO] [stdout] 88  | / compile_error!(
[INFO] [stdout] 89  | |     "This crate requires you to specify your target chip as a feature.
[INFO] [stdout] 90  | |
[INFO] [stdout] 91  | |     Please select one of the following:
[INFO] [stdout] ...   |
[INFO] [stdout] 110 | |     "
[INFO] [stdout] 111 | | );
[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:43:1
[INFO] [stdout]    |
[INFO] [stdout] 43 | #![feature(llvm_asm)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^
[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 compile `avr-device`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "834f0c4aa841feb5adf60012a287af5977a22942f870538872e695fefb65e656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "834f0c4aa841feb5adf60012a287af5977a22942f870538872e695fefb65e656", kill_on_drop: false }`
[INFO] [stdout] 834f0c4aa841feb5adf60012a287af5977a22942f870538872e695fefb65e656
