[INFO] fetching crate imgui_presentable_derive 0.4.0...
[INFO] testing imgui_presentable_derive-0.4.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate imgui_presentable_derive 0.4.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate imgui_presentable_derive 0.4.0
[INFO] finished tweaking crates.io crate imgui_presentable_derive 0.4.0
[INFO] tweaked toml for crates.io crate imgui_presentable_derive 0.4.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate imgui_presentable_derive 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] 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 10 packages to latest compatible versions
[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] 3a1bcae8570e0eba8d04e561f06b352dac47fb7bc2559febbdd1cadb310f1c78
[INFO] running `Command { std: "docker" "start" "-a" "3a1bcae8570e0eba8d04e561f06b352dac47fb7bc2559febbdd1cadb310f1c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a1bcae8570e0eba8d04e561f06b352dac47fb7bc2559febbdd1cadb310f1c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a1bcae8570e0eba8d04e561f06b352dac47fb7bc2559febbdd1cadb310f1c78", kill_on_drop: false }`
[INFO] [stdout] 3a1bcae8570e0eba8d04e561f06b352dac47fb7bc2559febbdd1cadb310f1c78
[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] 2714afb8f68db4bca20c8f04630d64793f81575847988d01f231e70f286019dd
[INFO] running `Command { std: "docker" "start" "-a" "2714afb8f68db4bca20c8f04630d64793f81575847988d01f231e70f286019dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling imgui_presentable_derive v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: At least one backend has to be specified in the feature list: either egui or imgui. The derive macro is useless otherwise.
[INFO] [stdout]   --> src/lib.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | / compile_error!(
[INFO] [stdout] 34 | |     "At least one backend has to be specified in the feature list: either egui or imgui. The derive macro is useless otherwise."
[INFO] [stdout] 35 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `imgui_presentable_derive` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "2714afb8f68db4bca20c8f04630d64793f81575847988d01f231e70f286019dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2714afb8f68db4bca20c8f04630d64793f81575847988d01f231e70f286019dd", kill_on_drop: false }`
[INFO] [stdout] 2714afb8f68db4bca20c8f04630d64793f81575847988d01f231e70f286019dd