[INFO] fetching crate wacore-binary 0.5.0...
[INFO] testing wacore-binary-0.5.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate wacore-binary 0.5.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate wacore-binary 0.5.0
[INFO] finished tweaking crates.io crate wacore-binary 0.5.0
[INFO] tweaked toml for crates.io crate wacore-binary 0.5.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wacore-binary 0.5.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wacore-binary 0.5.0 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-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e20546f1e57c2027eebb9b1aca3c7cc008464f96c66b7ad85680e82316379702
[INFO] running `Command { std: "docker" "start" "-a" "e20546f1e57c2027eebb9b1aca3c7cc008464f96c66b7ad85680e82316379702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e20546f1e57c2027eebb9b1aca3c7cc008464f96c66b7ad85680e82316379702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e20546f1e57c2027eebb9b1aca3c7cc008464f96c66b7ad85680e82316379702", kill_on_drop: false }`
[INFO] [stdout] e20546f1e57c2027eebb9b1aca3c7cc008464f96c66b7ad85680e82316379702
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2887f80e857eceebf25d0f99ddedfeff8262cc765c84637f68eec32d93db9d27
[INFO] running `Command { std: "docker" "start" "-a" "2887f80e857eceebf25d0f99ddedfeff8262cc765c84637f68eec32d93db9d27", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling phf_shared v0.13.1
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling itoa v1.0.17
[INFO] [stderr]    Compiling zlib-rs v0.6.3
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling phf_generator v0.13.1
[INFO] [stderr]    Compiling phf v0.13.1
[INFO] [stderr]    Compiling phf_codegen v0.13.1
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling wacore-binary v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling flate2 v1.1.9
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "simd", feature(portable_simd))]
[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 `wacore-binary` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "2887f80e857eceebf25d0f99ddedfeff8262cc765c84637f68eec32d93db9d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2887f80e857eceebf25d0f99ddedfeff8262cc765c84637f68eec32d93db9d27", kill_on_drop: false }`
[INFO] [stdout] 2887f80e857eceebf25d0f99ddedfeff8262cc765c84637f68eec32d93db9d27
