[INFO] fetching crate perpetual 0.10.0...
[INFO] testing perpetual-0.10.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate perpetual 0.10.0 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate perpetual 0.10.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate perpetual 0.10.0
[INFO] tweaked toml for crates.io crate perpetual 0.10.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate perpetual 0.10.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate perpetual 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de9d861e8cac35536fc71fb431096ff8ba80d06ad2462fb4c9d38c4e282c2365
[INFO] running `Command { std: "docker" "start" "-a" "de9d861e8cac35536fc71fb431096ff8ba80d06ad2462fb4c9d38c4e282c2365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de9d861e8cac35536fc71fb431096ff8ba80d06ad2462fb4c9d38c4e282c2365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de9d861e8cac35536fc71fb431096ff8ba80d06ad2462fb4c9d38c4e282c2365", kill_on_drop: false }`
[INFO] [stdout] de9d861e8cac35536fc71fb431096ff8ba80d06ad2462fb4c9d38c4e282c2365
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb97dc806aaac40d82d51215e68494d1a59da09df46ccb5bcf8153ac5f068e60
[INFO] running `Command { std: "docker" "start" "-a" "bb97dc806aaac40d82d51215e68494d1a59da09df46ccb5bcf8153ac5f068e60", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling sysinfo v0.37.1
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling perpetual v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_ptr_get)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `perpetual` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "bb97dc806aaac40d82d51215e68494d1a59da09df46ccb5bcf8153ac5f068e60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb97dc806aaac40d82d51215e68494d1a59da09df46ccb5bcf8153ac5f068e60", kill_on_drop: false }`
[INFO] [stdout] bb97dc806aaac40d82d51215e68494d1a59da09df46ccb5bcf8153ac5f068e60