[INFO] fetching crate hnswlib-rs 0.10.0...
[INFO] testing hnswlib-rs-0.10.0 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate hnswlib-rs 0.10.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate hnswlib-rs 0.10.0
[INFO] finished tweaking crates.io crate hnswlib-rs 0.10.0
[INFO] tweaked toml for crates.io crate hnswlib-rs 0.10.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hnswlib-rs 0.10.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hnswlib-rs 0.10.0 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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] 6c396ec7aaef971341a1c58b0e17f15ebcabea68a8bc3c430c88fc341006cd5c
[INFO] running `Command { std: "docker" "start" "6c396ec7aaef971341a1c58b0e17f15ebcabea68a8bc3c430c88fc341006cd5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c396ec7aaef971341a1c58b0e17f15ebcabea68a8bc3c430c88fc341006cd5c", 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" "6c396ec7aaef971341a1c58b0e17f15ebcabea68a8bc3c430c88fc341006cd5c" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c396ec7aaef971341a1c58b0e17f15ebcabea68a8bc3c430c88fc341006cd5c", 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" "6c396ec7aaef971341a1c58b0e17f15ebcabea68a8bc3c430c88fc341006cd5c" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling arc-swap v1.8.0
[INFO] [stderr]    Compiling ordered-float v4.6.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling zerocopy-derive v0.8.31
[INFO] [stderr]    Compiling bytemuck_derive v1.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling off64 v0.9.0
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling zerocopy v0.8.31
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling corenn-kernels v0.1.1
[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/corenn-kernels-0.1.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(f16)]
[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 `corenn-kernels` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6c396ec7aaef971341a1c58b0e17f15ebcabea68a8bc3c430c88fc341006cd5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c396ec7aaef971341a1c58b0e17f15ebcabea68a8bc3c430c88fc341006cd5c", kill_on_drop: false }`
[INFO] [stdout] 6c396ec7aaef971341a1c58b0e17f15ebcabea68a8bc3c430c88fc341006cd5c
