[INFO] fetching crate wareki-conv 0.2.1...
[INFO] testing wareki-conv-0.2.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate wareki-conv 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate wareki-conv 0.2.1
[INFO] finished tweaking crates.io crate wareki-conv 0.2.1
[INFO] tweaked toml for crates.io crate wareki-conv 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wareki-conv 0.2.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 62 packages to latest compatible versions
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] a1654c6be0718237db8fbb3b23dd3197c499cd53c41cf5b66dbee1e965d0f67f
[INFO] running `Command { std: "docker" "start" "-a" "a1654c6be0718237db8fbb3b23dd3197c499cd53c41cf5b66dbee1e965d0f67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1654c6be0718237db8fbb3b23dd3197c499cd53c41cf5b66dbee1e965d0f67f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1654c6be0718237db8fbb3b23dd3197c499cd53c41cf5b66dbee1e965d0f67f", kill_on_drop: false }`
[INFO] [stdout] a1654c6be0718237db8fbb3b23dd3197c499cd53c41cf5b66dbee1e965d0f67f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 4db2cabd374c185d61561fe0360f6ecfa9dcb07c37e89080645e7cf53819b9af
[INFO] running `Command { std: "docker" "start" "-a" "4db2cabd374c185d61561fe0360f6ecfa9dcb07c37e89080645e7cf53819b9af", kill_on_drop: false }`
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling unicode-jp v0.4.0
[INFO] [stderr]    Compiling wareki-conv v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(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 `wareki-conv` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4db2cabd374c185d61561fe0360f6ecfa9dcb07c37e89080645e7cf53819b9af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4db2cabd374c185d61561fe0360f6ecfa9dcb07c37e89080645e7cf53819b9af", kill_on_drop: false }`
[INFO] [stdout] 4db2cabd374c185d61561fe0360f6ecfa9dcb07c37e89080645e7cf53819b9af