[INFO] fetching crate supercilex-tests 0.4.21...
[INFO] testing supercilex-tests-0.4.21 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate supercilex-tests 0.4.21 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate supercilex-tests 0.4.21
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate supercilex-tests 0.4.21
[INFO] tweaked toml for crates.io crate supercilex-tests 0.4.21 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate supercilex-tests 0.4.21 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 supercilex-tests 0.4.21 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d2c7d06ad82956c10629ab83f32419ed8af2dc9eb8168bae1ce177e44a9ddc17
[INFO] running `Command { std: "docker" "start" "-a" "d2c7d06ad82956c10629ab83f32419ed8af2dc9eb8168bae1ce177e44a9ddc17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2c7d06ad82956c10629ab83f32419ed8af2dc9eb8168bae1ce177e44a9ddc17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2c7d06ad82956c10629ab83f32419ed8af2dc9eb8168bae1ce177e44a9ddc17", kill_on_drop: false }`
[INFO] [stdout] d2c7d06ad82956c10629ab83f32419ed8af2dc9eb8168bae1ce177e44a9ddc17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 67b3238787db3499cb2a6b903aa5d95fb533a93f11c488cb53060cc4a352e312
[INFO] running `Command { std: "docker" "start" "-a" "67b3238787db3499cb2a6b903aa5d95fb533a93f11c488cb53060cc4a352e312", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.141
[INFO] [stderr]    Compiling hashbrown v0.15.4
[INFO] [stderr]    Compiling toml_write v0.1.2
[INFO] [stderr]    Compiling camino v1.1.10
[INFO] [stderr]    Compiling winnow v0.7.12
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling dissimilar v1.0.10
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling hashbag v0.1.12
[INFO] [stderr]    Compiling clap_lex v0.7.5
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling clap_builder v4.5.41
[INFO] [stderr]    Compiling expect-test v1.5.1
[INFO] [stderr]    Compiling indexmap v2.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling cargo-platform v0.1.9
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling rustdoc-types v0.54.0
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling cargo_metadata v0.19.2
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]    Compiling public-api v0.49.0
[INFO] [stderr]    Compiling cargo-manifest v0.19.1
[INFO] [stderr]    Compiling rustdoc-json v0.9.6
[INFO] [stderr]    Compiling supercilex-tests v0.4.21 (/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(exit_status_error)]
[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 `supercilex-tests` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "67b3238787db3499cb2a6b903aa5d95fb533a93f11c488cb53060cc4a352e312", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b3238787db3499cb2a6b903aa5d95fb533a93f11c488cb53060cc4a352e312", kill_on_drop: false }`
[INFO] [stdout] 67b3238787db3499cb2a6b903aa5d95fb533a93f11c488cb53060cc4a352e312