[INFO] fetching crate smart-patcher 0.4.0...
[INFO] testing smart-patcher-0.4.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate smart-patcher 0.4.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate smart-patcher 0.4.0
[INFO] finished tweaking crates.io crate smart-patcher 0.4.0
[INFO] tweaked toml for crates.io crate smart-patcher 0.4.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate smart-patcher 0.4.0 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 smart-patcher 0.4.0 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 90471ed9fdfeb676eac50f63e050ade70545dcfb6515e0e9ba4430db84d1adc5
[INFO] running `Command { std: "docker" "start" "-a" "90471ed9fdfeb676eac50f63e050ade70545dcfb6515e0e9ba4430db84d1adc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90471ed9fdfeb676eac50f63e050ade70545dcfb6515e0e9ba4430db84d1adc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90471ed9fdfeb676eac50f63e050ade70545dcfb6515e0e9ba4430db84d1adc5", kill_on_drop: false }`
[INFO] [stdout] 90471ed9fdfeb676eac50f63e050ade70545dcfb6515e0e9ba4430db84d1adc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 0a4de53e65bc0ca71d8e5391cc245e7932d10ebbff1e6c2cffe638c9f6a4e912
[INFO] running `Command { std: "docker" "start" "-a" "0a4de53e65bc0ca71d8e5391cc245e7932d10ebbff1e6c2cffe638c9f6a4e912", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling cc v1.2.30
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling anstyle-query v1.1.3
[INFO] [stderr]    Compiling serde_json v1.0.141
[INFO] [stderr]    Compiling clap_lex v0.7.5
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling difference-rs v3.2.0
[INFO] [stderr]    Compiling anstream v0.6.19
[INFO] [stderr]    Compiling uuid v1.18.0
[INFO] [stderr]    Compiling clap_builder v4.5.41
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.43
[INFO] [stderr]    Compiling mimalloc v0.1.47
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling clap_derive v4.5.41
[INFO] [stderr]    Compiling clap v4.5.41
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling smart-patcher v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(let_chains, exit_status_error)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `let_chains` has been stable since `1.88.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `let_chains` has been stable since 1.88.0 and no longer requires an attribute to enable
[INFO] [stdout]   --> src/lib.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![feature(let_chains, exit_status_error)]
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smart-patcher` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "0a4de53e65bc0ca71d8e5391cc245e7932d10ebbff1e6c2cffe638c9f6a4e912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a4de53e65bc0ca71d8e5391cc245e7932d10ebbff1e6c2cffe638c9f6a4e912", kill_on_drop: false }`
[INFO] [stdout] 0a4de53e65bc0ca71d8e5391cc245e7932d10ebbff1e6c2cffe638c9f6a4e912
