[INFO] fetching crate lilos 0.2.1... [INFO] testing lilos-0.2.1 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate lilos 0.2.1 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate lilos 0.2.1 on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate lilos 0.2.1 [INFO] finished tweaking crates.io crate lilos 0.2.1 [INFO] tweaked toml for crates.io crate lilos 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0d970e21cb4b41420dd05ee4e82b8cd81748a21d044e36fa3a71c1ce20ce9de4 [INFO] running `Command { std: "docker" "start" "-a" "0d970e21cb4b41420dd05ee4e82b8cd81748a21d044e36fa3a71c1ce20ce9de4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0d970e21cb4b41420dd05ee4e82b8cd81748a21d044e36fa3a71c1ce20ce9de4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d970e21cb4b41420dd05ee4e82b8cd81748a21d044e36fa3a71c1ce20ce9de4", kill_on_drop: false }` [INFO] [stdout] 0d970e21cb4b41420dd05ee4e82b8cd81748a21d044e36fa3a71c1ce20ce9de4 [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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 044998f7f3ca4975bf5f14106dc1e457ebf879d06008a8059e37f9b51b94b2a5 [INFO] running `Command { std: "docker" "start" "-a" "044998f7f3ca4975bf5f14106dc1e457ebf879d06008a8059e37f9b51b94b2a5", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Compiling futures-task v0.3.21 [INFO] [stderr] Compiling futures-channel v0.3.21 [INFO] [stderr] Compiling futures-sink v0.3.21 [INFO] [stderr] Compiling nb v1.0.0 [INFO] [stderr] Compiling futures-util v0.3.21 [INFO] [stderr] Compiling cortex-m-rt v0.6.15 [INFO] [stderr] Compiling vcell v0.1.3 [INFO] [stderr] Compiling cortex-m v0.7.4 [INFO] [stderr] Compiling r0 v0.2.2 [INFO] [stderr] Compiling futures-io v0.3.21 [INFO] [stderr] Compiling bare-metal v0.2.5 [INFO] [stderr] Compiling futures-macro v0.3.21 [INFO] [stderr] Compiling cortex-m-rt-macros v0.6.15 [INFO] [stderr] Compiling nb v0.1.3 [INFO] [stderr] Compiling volatile-register v0.2.1 [INFO] [stderr] Compiling embedded-hal v0.2.7 [INFO] [stderr] Compiling futures v0.3.21 [INFO] [stderr] Compiling lilos v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:90:1 [INFO] [stdout] | [INFO] [stdout] 90 | #![feature(never_type)] [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 `lilos` due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "044998f7f3ca4975bf5f14106dc1e457ebf879d06008a8059e37f9b51b94b2a5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "044998f7f3ca4975bf5f14106dc1e457ebf879d06008a8059e37f9b51b94b2a5", kill_on_drop: false }` [INFO] [stdout] 044998f7f3ca4975bf5f14106dc1e457ebf879d06008a8059e37f9b51b94b2a5