[INFO] fetching crate nwn-lib-rs 0.4.0...
[INFO] testing nwn-lib-rs-0.4.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate nwn-lib-rs 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate nwn-lib-rs 0.4.0
[INFO] finished tweaking crates.io crate nwn-lib-rs 0.4.0
[INFO] tweaked toml for crates.io crate nwn-lib-rs 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nwn-lib-rs 0.4.0 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] crate crates.io crate nwn-lib-rs 0.4.0 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-2025-10-28" "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] bfdd6fb2d65fd7f50e4ef6226e1c9562a69bba92b78bbb609491c540348a4cab
[INFO] running `Command { std: "docker" "start" "-a" "bfdd6fb2d65fd7f50e4ef6226e1c9562a69bba92b78bbb609491c540348a4cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfdd6fb2d65fd7f50e4ef6226e1c9562a69bba92b78bbb609491c540348a4cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfdd6fb2d65fd7f50e4ef6226e1c9562a69bba92b78bbb609491c540348a4cab", kill_on_drop: false }`
[INFO] [stdout] bfdd6fb2d65fd7f50e4ef6226e1c9562a69bba92b78bbb609491c540348a4cab
[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] 67822301707f958b8b86f25bc39ca4d06b728f4d4b349db971de52742e3c607b
[INFO] running `Command { std: "docker" "start" "-a" "67822301707f958b8b86f25bc39ca4d06b728f4d4b349db971de52742e3c607b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling base64ct v1.6.0
[INFO] [stderr]    Compiling xml-rs v0.8.25
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling chrono v0.4.39
[INFO] [stderr]    Compiling libz-ng-sys v1.1.21
[INFO] [stderr]    Compiling git-version-macro v0.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling git-version v0.3.9
[INFO] [stderr]    Compiling flate2 v1.0.35
[INFO] [stderr]    Compiling nwn-lib-rs v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(generic_const_exprs, coverage_attribute, test)]
[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 `nwn-lib-rs` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "67822301707f958b8b86f25bc39ca4d06b728f4d4b349db971de52742e3c607b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67822301707f958b8b86f25bc39ca4d06b728f4d4b349db971de52742e3c607b", kill_on_drop: false }`
[INFO] [stdout] 67822301707f958b8b86f25bc39ca4d06b728f4d4b349db971de52742e3c607b