[INFO] fetching crate ctrlgen 0.3.5...
[INFO] testing ctrlgen-0.3.5 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate ctrlgen 0.3.5 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate ctrlgen 0.3.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ctrlgen 0.3.5
[INFO] tweaked toml for crates.io crate ctrlgen 0.3.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ctrlgen 0.3.5 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding flume v0.10.14 (available: v0.11.1)
[INFO] [stderr]       Adding futures-lite v1.13.0 (available: v2.6.1)
[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] 754b1cf8fb0fd85c24b6e83e82c5f44538b7d61757437e7886ea67da1d183aff
[INFO] running `Command { std: "docker" "start" "-a" "754b1cf8fb0fd85c24b6e83e82c5f44538b7d61757437e7886ea67da1d183aff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "754b1cf8fb0fd85c24b6e83e82c5f44538b7d61757437e7886ea67da1d183aff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "754b1cf8fb0fd85c24b6e83e82c5f44538b7d61757437e7886ea67da1d183aff", kill_on_drop: false }`
[INFO] [stdout] 754b1cf8fb0fd85c24b6e83e82c5f44538b7d61757437e7886ea67da1d183aff
[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] 4bf588aeae7fee7b6f0ddbeff08253b0af0bb15e64a8c3cd2566e91f2dcd60c6
[INFO] running `Command { std: "docker" "start" "-a" "4bf588aeae7fee7b6f0ddbeff08253b0af0bb15e64a8c3cd2566e91f2dcd60c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]    Compiling ctrlgen-impl v0.3.5
[INFO] [stderr]    Compiling ctrlgen-derive v0.3.5
[INFO] [stderr]    Compiling ctrlgen v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(impl_trait_in_assoc_type)]
[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(try_trait_v2)]
[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 `ctrlgen` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4bf588aeae7fee7b6f0ddbeff08253b0af0bb15e64a8c3cd2566e91f2dcd60c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bf588aeae7fee7b6f0ddbeff08253b0af0bb15e64a8c3cd2566e91f2dcd60c6", kill_on_drop: false }`
[INFO] [stdout] 4bf588aeae7fee7b6f0ddbeff08253b0af0bb15e64a8c3cd2566e91f2dcd60c6
