[INFO] fetching crate numbat-wasm-module-features 0.0.15...
[INFO] testing numbat-wasm-module-features-0.0.15 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate numbat-wasm-module-features 0.0.15 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate numbat-wasm-module-features 0.0.15
[INFO] finished tweaking crates.io crate numbat-wasm-module-features 0.0.15
[INFO] tweaked toml for crates.io crate numbat-wasm-module-features 0.0.15 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate numbat-wasm-module-features 0.0.15 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] crate crates.io crate numbat-wasm-module-features 0.0.15 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9268e0227d734db736e3157efab9a8bc78635f0bb1c9629af535e268209e7d7c
[INFO] running `Command { std: "docker" "start" "-a" "9268e0227d734db736e3157efab9a8bc78635f0bb1c9629af535e268209e7d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9268e0227d734db736e3157efab9a8bc78635f0bb1c9629af535e268209e7d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9268e0227d734db736e3157efab9a8bc78635f0bb1c9629af535e268209e7d7c", kill_on_drop: false }`
[INFO] [stdout] 9268e0227d734db736e3157efab9a8bc78635f0bb1c9629af535e268209e7d7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6a6de4083ac16625bf66b3c503045ac45c75c57d29d9acf9a7b65ab03989de07
[INFO] running `Command { std: "docker" "start" "-a" "6a6de4083ac16625bf66b3c503045ac45c75c57d29d9acf9a7b65ab03989de07", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling memory_units v0.4.0
[INFO] [stderr]    Compiling nibble_vec v0.0.4
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling radix_trie v0.1.6
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling numbat-codec-derive v0.0.15
[INFO] [stderr]    Compiling numbat-wasm-derive v0.0.15
[INFO] [stderr]    Compiling numbat-codec v0.0.15
[INFO] [stderr]    Compiling numbat-wasm v0.0.15
[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/numbat-wasm-0.0.15/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/numbat-wasm-0.0.15/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(try_trait_v2)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/numbat-wasm-0.0.15/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(control_flow_enum)]
[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 `numbat-wasm` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "6a6de4083ac16625bf66b3c503045ac45c75c57d29d9acf9a7b65ab03989de07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a6de4083ac16625bf66b3c503045ac45c75c57d29d9acf9a7b65ab03989de07", kill_on_drop: false }`
[INFO] [stdout] 6a6de4083ac16625bf66b3c503045ac45c75c57d29d9acf9a7b65ab03989de07