[INFO] fetching crate ftui-web 0.9.0...
[INFO] testing ftui-web-0.9.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate ftui-web 0.9.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate ftui-web 0.9.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ftui-web 0.9.0
[INFO] tweaked toml for crates.io crate ftui-web 0.9.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ftui-web 0.9.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ftui-web 0.9.0 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.78
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.78
[INFO] [stderr]   Downloaded wasm-bindgen-test-shared v0.2.128
[INFO] [stderr]   Downloaded minicov v0.3.8
[INFO] [stderr]   Downloaded unicode-display-width v0.3.0
[INFO] [stderr]   Downloaded ftui-i18n v0.9.0
[INFO] [stderr]   Downloaded ftui-backend v0.9.0
[INFO] [stderr]   Downloaded ftui-a11y v0.9.0
[INFO] [stderr]   Downloaded ftui-style v0.9.0
[INFO] [stderr]   Downloaded ftui-text v0.9.0
[INFO] [stderr]   Downloaded ftui-core v0.9.0
[INFO] [stderr]   Downloaded ftui-layout v0.9.0
[INFO] [stderr]   Downloaded ftui-render v0.9.0
[INFO] [stderr]   Downloaded ftui-runtime v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6721568908a623b728a0ae13244f73e4de29ca30c5e991e0c13334a49f888520
[INFO] running `Command { std: "docker" "start" "6721568908a623b728a0ae13244f73e4de29ca30c5e991e0c13334a49f888520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6721568908a623b728a0ae13244f73e4de29ca30c5e991e0c13334a49f888520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6721568908a623b728a0ae13244f73e4de29ca30c5e991e0c13334a49f888520" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6721568908a623b728a0ae13244f73e4de29ca30c5e991e0c13334a49f888520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6721568908a623b728a0ae13244f73e4de29ca30c5e991e0c13334a49f888520" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.57
[INFO] [stderr]    Compiling signal-hook v0.4.4
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling bitflags v2.13.2
[INFO] [stderr]    Compiling arc-swap v1.9.2
[INFO] [stderr]    Compiling unicode-display-width v0.3.0
[INFO] [stderr]    Compiling smallvec v1.16.2
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling syn v3.0.6
[INFO] [stderr]    Compiling bumpalo v3.20.3
[INFO] [stderr]    Compiling serde_json v1.0.151
[INFO] [stderr]    Compiling hashbrown v0.17.1
[INFO] [stderr]    Compiling rustix v1.1.5
[INFO] [stderr]    Compiling str_indices v0.4.4
[INFO] [stderr]    Compiling ropey v1.6.1
[INFO] [stderr]    Compiling ftui-i18n v0.9.0
[INFO] [stderr]    Compiling lru v0.18.5
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling ftui-core v0.9.0
[INFO] [stderr]    Compiling ftui-a11y v0.9.0
[INFO] [stderr]    Compiling ftui-layout v0.9.0
[INFO] [stderr]    Compiling ftui-render v0.9.0
[INFO] [stderr]    Compiling ftui-style v0.9.0
[INFO] [stderr]    Compiling ftui-backend v0.9.0
[INFO] [stderr]    Compiling ftui-text v0.9.0
[INFO] [stderr]    Compiling ftui-runtime v0.9.0
[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/ftui-runtime-0.9.0/src/lib.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(unix, feature(unix_send_signal))]
[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 `ftui-runtime` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6721568908a623b728a0ae13244f73e4de29ca30c5e991e0c13334a49f888520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6721568908a623b728a0ae13244f73e4de29ca30c5e991e0c13334a49f888520", kill_on_drop: false }`
[INFO] [stdout] 6721568908a623b728a0ae13244f73e4de29ca30c5e991e0c13334a49f888520
