[INFO] fetching crate ezlib 0.1.0...
[INFO] testing ezlib-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate ezlib 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate ezlib 0.1.0
[INFO] finished tweaking crates.io crate ezlib 0.1.0
[INFO] tweaked toml for crates.io crate ezlib 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ezlib 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ezlib 0.1.0 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34c47e74ff24784dd2f892aaae348b773cbf6297b71dad7dff3845dead85d53b
[INFO] running `Command { std: "docker" "start" "-a" "34c47e74ff24784dd2f892aaae348b773cbf6297b71dad7dff3845dead85d53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34c47e74ff24784dd2f892aaae348b773cbf6297b71dad7dff3845dead85d53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34c47e74ff24784dd2f892aaae348b773cbf6297b71dad7dff3845dead85d53b", kill_on_drop: false }`
[INFO] [stdout] 34c47e74ff24784dd2f892aaae348b773cbf6297b71dad7dff3845dead85d53b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa1f31a021829ae0e18631f863328cc2d09ae032d01eec7ef9a1864e2d33368c
[INFO] running `Command { std: "docker" "start" "-a" "fa1f31a021829ae0e18631f863328cc2d09ae032d01eec7ef9a1864e2d33368c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling ezcbor v0.1.4
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ezlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(portable_simd)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_index`
[INFO] [stdout]     --> src/lib.rs:1731:13
[INFO] [stdout]      |
[INFO] [stdout] 1731 |         let key_index = leaf.keys.find(key).unwrap();
[INFO] [stdout]      |             ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]      |
[INFO] [stdout] 1731 |         let _key_index = leaf.keys.find(key).unwrap();
[INFO] [stdout]      |             +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `ORDER`
[INFO] [stdout]      |
[INFO] [stdout] 1731 -         let key_index = leaf.keys.find(key).unwrap();
[INFO] [stdout] 1731 +         let ORDER = leaf.keys.find(key).unwrap();
[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 `ezlib` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "fa1f31a021829ae0e18631f863328cc2d09ae032d01eec7ef9a1864e2d33368c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa1f31a021829ae0e18631f863328cc2d09ae032d01eec7ef9a1864e2d33368c", kill_on_drop: false }`
[INFO] [stdout] fa1f31a021829ae0e18631f863328cc2d09ae032d01eec7ef9a1864e2d33368c