[INFO] fetching crate ruspiro-interrupt-core 0.3.1...
[INFO] testing ruspiro-interrupt-core-0.3.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate ruspiro-interrupt-core 0.3.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate ruspiro-interrupt-core 0.3.1 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 crates.io crate ruspiro-interrupt-core 0.3.1
[INFO] finished tweaking crates.io crate ruspiro-interrupt-core 0.3.1
[INFO] tweaked toml for crates.io crate ruspiro-interrupt-core 0.3.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 60007c071a01bfea163150de834f77d8d3f7ba7dec91a84ba06bbc4328aedaac
[INFO] running `Command { std: "docker" "start" "-a" "60007c071a01bfea163150de834f77d8d3f7ba7dec91a84ba06bbc4328aedaac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60007c071a01bfea163150de834f77d8d3f7ba7dec91a84ba06bbc4328aedaac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60007c071a01bfea163150de834f77d8d3f7ba7dec91a84ba06bbc4328aedaac", kill_on_drop: false }`
[INFO] [stdout] 60007c071a01bfea163150de834f77d8d3f7ba7dec91a84ba06bbc4328aedaac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] cddf8e8e010fc73d8e3fe252c5ee3bde243fa4dcfa91867178a899bbf17f913e
[INFO] running `Command { std: "docker" "start" "-a" "cddf8e8e010fc73d8e3fe252c5ee3bde243fa4dcfa91867178a899bbf17f913e", kill_on_drop: false }`
[INFO] [stderr]    Compiling ruspiro-interrupt-core v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(llvm_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 `ruspiro-interrupt-core` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "cddf8e8e010fc73d8e3fe252c5ee3bde243fa4dcfa91867178a899bbf17f913e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cddf8e8e010fc73d8e3fe252c5ee3bde243fa4dcfa91867178a899bbf17f913e", kill_on_drop: false }`
[INFO] [stdout] cddf8e8e010fc73d8e3fe252c5ee3bde243fa4dcfa91867178a899bbf17f913e