[INFO] fetching crate usb-descriptor-decoder 0.1.0...
[INFO] testing usb-descriptor-decoder-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate usb-descriptor-decoder 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate usb-descriptor-decoder 0.1.0
[INFO] finished tweaking crates.io crate usb-descriptor-decoder 0.1.0
[INFO] tweaked toml for crates.io crate usb-descriptor-decoder 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate usb-descriptor-decoder 0.1.0 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 usb-descriptor-decoder 0.1.0 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] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `num-traits` dependency)
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d364d5b53282e20f4bf00a9b68fa2ba9bd87f5abf3c7c479e7f32e070c46d42d
[INFO] running `Command { std: "docker" "start" "-a" "d364d5b53282e20f4bf00a9b68fa2ba9bd87f5abf3c7c479e7f32e070c46d42d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d364d5b53282e20f4bf00a9b68fa2ba9bd87f5abf3c7c479e7f32e070c46d42d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d364d5b53282e20f4bf00a9b68fa2ba9bd87f5abf3c7c479e7f32e070c46d42d", kill_on_drop: false }`
[INFO] [stdout] d364d5b53282e20f4bf00a9b68fa2ba9bd87f5abf3c7c479e7f32e070c46d42d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1be2860e7356ee26ba969c295f62b34e3194f44c05e2865c0400ed1bf96437df
[INFO] running `Command { std: "docker" "start" "-a" "1be2860e7356ee26ba969c295f62b34e3194f44c05e2865c0400ed1bf96437df", kill_on_drop: false }`
[INFO] [stderr] warning: `default_features` is deprecated in favor of `default-features` and will not work in the 2024 edition
[INFO] [stderr] (in the `num-traits` dependency)
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling tock-registers v0.9.0
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling usb-descriptor-decoder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> src/descriptors/parser.rs:182:20
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 if let Some(res) = &self.result
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(if_let_guard, let_chains)]
[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:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(if_let_guard, let_chains)]
[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 `usb-descriptor-decoder` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1be2860e7356ee26ba969c295f62b34e3194f44c05e2865c0400ed1bf96437df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1be2860e7356ee26ba969c295f62b34e3194f44c05e2865c0400ed1bf96437df", kill_on_drop: false }`
[INFO] [stdout] 1be2860e7356ee26ba969c295f62b34e3194f44c05e2865c0400ed1bf96437df
