[INFO] fetching crate wurth-calypso 0.1.1...
[INFO] testing wurth-calypso-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate wurth-calypso 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate wurth-calypso 0.1.1
[INFO] finished tweaking crates.io crate wurth-calypso 0.1.1
[INFO] tweaked toml for crates.io crate wurth-calypso 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wurth-calypso 0.1.1 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 wurth-calypso 0.1.1 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e39ecba136a9d0ff2fdb074fa99cd86a585d53eba3298631a50018853df68685
[INFO] running `Command { std: "docker" "start" "-a" "e39ecba136a9d0ff2fdb074fa99cd86a585d53eba3298631a50018853df68685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e39ecba136a9d0ff2fdb074fa99cd86a585d53eba3298631a50018853df68685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e39ecba136a9d0ff2fdb074fa99cd86a585d53eba3298631a50018853df68685", kill_on_drop: false }`
[INFO] [stdout] e39ecba136a9d0ff2fdb074fa99cd86a585d53eba3298631a50018853df68685
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2e4e87ad12d5fc00221249d196f1f57217b761f0db7363405325c64611bbf66b
[INFO] running `Command { std: "docker" "start" "-a" "2e4e87ad12d5fc00221249d196f1f57217b761f0db7363405325c64611bbf66b", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling futures-sink v0.3.29
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling spin v0.9.4
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-io-async v0.6.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling critical-section v1.1.2
[INFO] [stderr]    Compiling embassy-sync v0.3.0
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling futures-io v0.3.29
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling futures v0.3.29
[INFO] [stderr]    Compiling serde_bytes v0.11.12
[INFO] [stderr]    Compiling serde_at v0.20.0
[INFO] [stderr]    Compiling embassy-time v0.1.4
[INFO] [stderr]    Compiling heapless-bytes v0.3.0
[INFO] [stderr]    Compiling atat_derive v0.20.0
[INFO] [stderr]    Compiling atat v0.20.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/atat-0.20.0/src/lib.rs:221:32
[INFO] [stdout]     |
[INFO] [stdout] 221 | #![cfg_attr(feature = "async", feature(async_fn_in_trait))]
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]     |
[INFO] [stdout]     = help: the feature `async_fn_in_trait` has been stable since `1.75.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `atat` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "2e4e87ad12d5fc00221249d196f1f57217b761f0db7363405325c64611bbf66b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e4e87ad12d5fc00221249d196f1f57217b761f0db7363405325c64611bbf66b", kill_on_drop: false }`
[INFO] [stdout] 2e4e87ad12d5fc00221249d196f1f57217b761f0db7363405325c64611bbf66b