[INFO] fetching crate sugiura-hiromichi_tp 0.2.0... [INFO] testing sugiura-hiromichi_tp-0.2.0 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate sugiura-hiromichi_tp 0.2.0 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate sugiura-hiromichi_tp 0.2.0 [INFO] finished tweaking crates.io crate sugiura-hiromichi_tp 0.2.0 [INFO] tweaked toml for crates.io crate sugiura-hiromichi_tp 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate sugiura-hiromichi_tp 0.2.0 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 sugiura-hiromichi_tp 0.2.0 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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 46ce3097c9f02aea573b9e3b8db31553bb393237eb859060d37805c42e11fe14 [INFO] running `Command { std: "docker" "start" "-a" "46ce3097c9f02aea573b9e3b8db31553bb393237eb859060d37805c42e11fe14", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "46ce3097c9f02aea573b9e3b8db31553bb393237eb859060d37805c42e11fe14", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46ce3097c9f02aea573b9e3b8db31553bb393237eb859060d37805c42e11fe14", kill_on_drop: false }` [INFO] [stdout] 46ce3097c9f02aea573b9e3b8db31553bb393237eb859060d37805c42e11fe14 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c9528ac828835da9f7d42216219210be2a71e231ab38000a4d4a9966b72ca090 [INFO] running `Command { std: "docker" "start" "-a" "c9528ac828835da9f7d42216219210be2a71e231ab38000a4d4a9966b72ca090", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.51 [INFO] [stderr] Compiling unicode-ident v1.0.6 [INFO] [stderr] Compiling quote v1.0.23 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling libc v0.2.139 [INFO] [stderr] Compiling anyhow v1.0.69 [INFO] [stderr] Compiling os_str_bytes v6.4.1 [INFO] [stderr] Compiling termcolor v1.2.0 [INFO] [stderr] Compiling once_cell v1.17.0 [INFO] [stderr] Compiling textwrap v0.16.0 [INFO] [stderr] Compiling indexmap v1.9.2 [INFO] [stderr] Compiling clap_lex v0.2.4 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling sugiura-hiromichi_mylibrary v1.1.2 [INFO] [stderr] Compiling clap_derive v3.2.18 [INFO] [stderr] Compiling clap v3.2.23 [INFO] [stderr] Compiling sugiura-hiromichi_tp v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/main.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(if_let_guard)] [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 `sugiura-hiromichi_tp` (bin "sugiura-hiromichi_tp") due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "c9528ac828835da9f7d42216219210be2a71e231ab38000a4d4a9966b72ca090", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c9528ac828835da9f7d42216219210be2a71e231ab38000a4d4a9966b72ca090", kill_on_drop: false }` [INFO] [stdout] c9528ac828835da9f7d42216219210be2a71e231ab38000a4d4a9966b72ca090