[INFO] fetching crate rocketmq-namesrv 0.8.0...
[INFO] testing rocketmq-namesrv-0.8.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rocketmq-namesrv 0.8.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rocketmq-namesrv 0.8.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rocketmq-namesrv 0.8.0
[INFO] tweaked toml for crates.io crate rocketmq-namesrv 0.8.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rocketmq-namesrv 0.8.0 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 rocketmq-namesrv 0.8.0 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c7314959ef40a1fbade37bdeaa46cda4d568c6b569accf4076b53812b4e9437f
[INFO] running `Command { std: "docker" "start" "-a" "c7314959ef40a1fbade37bdeaa46cda4d568c6b569accf4076b53812b4e9437f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7314959ef40a1fbade37bdeaa46cda4d568c6b569accf4076b53812b4e9437f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7314959ef40a1fbade37bdeaa46cda4d568c6b569accf4076b53812b4e9437f", kill_on_drop: false }`
[INFO] [stdout] c7314959ef40a1fbade37bdeaa46cda4d568c6b569accf4076b53812b4e9437f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 82dfc189a5e0734dcabbacee326afc887254350f81ce25361589460489fa0194
[INFO] running `Command { std: "docker" "start" "-a" "82dfc189a5e0734dcabbacee326afc887254350f81ce25361589460489fa0194", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.24
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[INFO] [stderr]    Compiling uuid v1.23.0
[INFO] [stderr]    Compiling phf v0.12.1
[INFO] [stderr]    Compiling url v2.5.8
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling rocketmq-error v0.8.0
[INFO] [stderr]    Compiling cron v0.16.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling anstyle-query v1.1.5
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.2
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling anstyle v1.0.13
[INFO] [stderr]    Compiling crc-catalog v2.4.0
[INFO] [stderr]    Compiling crc v3.4.0
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling tracing-appender v0.2.4
[INFO] [stderr]    Compiling anstream v1.0.0
[INFO] [stderr]    Compiling rocketmq-rust v0.8.0
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling regex v1.12.3
[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/rocketmq-rust-0.8.0/src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(sync_unsafe_cell)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling flate2 v1.1.9
[INFO] [stderr]    Compiling md-5 v0.10.6
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rocketmq-rust` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "82dfc189a5e0734dcabbacee326afc887254350f81ce25361589460489fa0194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82dfc189a5e0734dcabbacee326afc887254350f81ce25361589460489fa0194", kill_on_drop: false }`
[INFO] [stdout] 82dfc189a5e0734dcabbacee326afc887254350f81ce25361589460489fa0194
