[INFO] fetching crate smart-patcher 0.4.0...
[INFO] testing smart-patcher-0.4.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate smart-patcher 0.4.0 into /workspace/builds/worker-6-tc1/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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate smart-patcher 0.4.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mlua-sys v0.8.2
[INFO] [stderr]   Downloaded redox_syscall v0.5.14
[INFO] [stderr]   Downloaded rhai_codegen v2.2.0
[INFO] [stderr]   Downloaded mlua v0.11.1
[INFO] [stderr]   Downloaded difference-rs v3.2.0
[INFO] [stderr]   Downloaded rhai v1.22.2
[INFO] [stderr]   Downloaded lua-src v548.1.1
[INFO] [stderr]   Downloaded luajit-src v210.6.1+f9140a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0da938c75aebe2e60288fc5f07845baab8268a97784d6f47e0209ea27c542f7e
[INFO] running `Command { std: "docker" "start" "-a" "0da938c75aebe2e60288fc5f07845baab8268a97784d6f47e0209ea27c542f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0da938c75aebe2e60288fc5f07845baab8268a97784d6f47e0209ea27c542f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0da938c75aebe2e60288fc5f07845baab8268a97784d6f47e0209ea27c542f7e", kill_on_drop: false }`
[INFO] [stdout] 0da938c75aebe2e60288fc5f07845baab8268a97784d6f47e0209ea27c542f7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] daa34ca84b536c76501a7aa2741ca076945fbab3bd3b062b1a09aca37f810767
[INFO] running `Command { std: "docker" "start" "-a" "daa34ca84b536c76501a7aa2741ca076945fbab3bd3b062b1a09aca37f810767", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.141
[INFO] [stderr]    Compiling cc v1.2.30
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling difference-rs v3.2.0
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling clap_builder v4.5.41
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling uuid v1.18.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.43
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling clap_derive v4.5.41
[INFO] [stderr]    Compiling mimalloc v0.1.47
[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 stable 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" "daa34ca84b536c76501a7aa2741ca076945fbab3bd3b062b1a09aca37f810767", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daa34ca84b536c76501a7aa2741ca076945fbab3bd3b062b1a09aca37f810767", kill_on_drop: false }`
[INFO] [stdout] daa34ca84b536c76501a7aa2741ca076945fbab3bd3b062b1a09aca37f810767