[INFO] fetching crate parst 0.2.0...
[INFO] testing parst-0.2.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate parst 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate parst 0.2.0
[INFO] finished tweaking crates.io crate parst 0.2.0
[INFO] tweaked toml for crates.io crate parst 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate parst 0.2.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad1a75edac14dae87ca75f4e9e89f8c29f4e363e1fd3e2cad9c194a1d04c909a
[INFO] running `Command { std: "docker" "start" "-a" "ad1a75edac14dae87ca75f4e9e89f8c29f4e363e1fd3e2cad9c194a1d04c909a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad1a75edac14dae87ca75f4e9e89f8c29f4e363e1fd3e2cad9c194a1d04c909a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad1a75edac14dae87ca75f4e9e89f8c29f4e363e1fd3e2cad9c194a1d04c909a", kill_on_drop: false }`
[INFO] [stdout] ad1a75edac14dae87ca75f4e9e89f8c29f4e363e1fd3e2cad9c194a1d04c909a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63d52d8c91d1b067dbe83f9ba4eb2cfacf458ee4d2fc45a4b2d549c4604a3f2f
[INFO] running `Command { std: "docker" "start" "-a" "63d52d8c91d1b067dbe83f9ba4eb2cfacf458ee4d2fc45a4b2d549c4604a3f2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling parst_derive v0.2.0
[INFO] [stderr]    Compiling parst v0.2.0 (/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(split_array)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(array_try_from_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `split_array_ref` found for reference `&[S]` in the current scope
[INFO] [stdout]  --> src/helpers.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 |         .then(|| input.split_array_ref::<N>())
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: there is a method `split_at` with a similar name, but with different arguments
[INFO] [stdout]  --> /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/slice/mod.rs:1946:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `parst` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "63d52d8c91d1b067dbe83f9ba4eb2cfacf458ee4d2fc45a4b2d549c4604a3f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63d52d8c91d1b067dbe83f9ba4eb2cfacf458ee4d2fc45a4b2d549c4604a3f2f", kill_on_drop: false }`
[INFO] [stdout] 63d52d8c91d1b067dbe83f9ba4eb2cfacf458ee4d2fc45a4b2d549c4604a3f2f