[INFO] cloning repository https://github.com/sime1/raspi4-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sime1/raspi4-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsime1%2Fraspi4-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsime1%2Fraspi4-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e73e9ab3a982fa544a5d09bf4297cd2661de2078
[INFO] testing sime1/raspi4-rust against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsime1%2Fraspi4-rust" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sime1/raspi4-rust on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sime1/raspi4-rust
[INFO] finished tweaking git repo https://github.com/sime1/raspi4-rust
[INFO] tweaked toml for git repo https://github.com/sime1/raspi4-rust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/sime1/raspi4-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 488ca068d705a6bb81219d0d1d415e0d80b466980e6670de8ef5dedc4191a4c7
[INFO] running `Command { std: "docker" "start" "-a" "488ca068d705a6bb81219d0d1d415e0d80b466980e6670de8ef5dedc4191a4c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "488ca068d705a6bb81219d0d1d415e0d80b466980e6670de8ef5dedc4191a4c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "488ca068d705a6bb81219d0d1d415e0d80b466980e6670de8ef5dedc4191a4c7", kill_on_drop: false }`
[INFO] [stdout] 488ca068d705a6bb81219d0d1d415e0d80b466980e6670de8ef5dedc4191a4c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b24161ffbcfd0a3fba42d7e31a2727fafea2908be4e96ac6f6718748597a2bc1
[INFO] running `Command { std: "docker" "start" "-a" "b24161ffbcfd0a3fba42d7e31a2727fafea2908be4e96ac6f6718748597a2bc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling macros v0.1.0 (/opt/rustwide/workdir/macros)
[INFO] [stderr]    Compiling raspi4 v0.1.0 (/opt/rustwide/workdir/raspi4)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> raspi4/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(core_intrinsics, lang_items, asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `raspi4` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b24161ffbcfd0a3fba42d7e31a2727fafea2908be4e96ac6f6718748597a2bc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b24161ffbcfd0a3fba42d7e31a2727fafea2908be4e96ac6f6718748597a2bc1", kill_on_drop: false }`
[INFO] [stdout] b24161ffbcfd0a3fba42d7e31a2727fafea2908be4e96ac6f6718748597a2bc1