[INFO] fetching crate json_schema_test_suite 0.3.0...
[INFO] testing json_schema_test_suite-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate json_schema_test_suite 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate json_schema_test_suite 0.3.0
[INFO] finished tweaking crates.io crate json_schema_test_suite 0.3.0
[INFO] tweaked toml for crates.io crate json_schema_test_suite 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate json_schema_test_suite 0.3.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 150 packages to latest compatible versions
[INFO] [stderr]       Adding mockito v0.32.5 (available: v1.7.0)
[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]     Blocking waiting for file lock on package cache
[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] 0c661b2d1d3a9dbb9fa210b5f53cbcfcf1b0169bce37423018d05b389c720624
[INFO] running `Command { std: "docker" "start" "-a" "0c661b2d1d3a9dbb9fa210b5f53cbcfcf1b0169bce37423018d05b389c720624", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c661b2d1d3a9dbb9fa210b5f53cbcfcf1b0169bce37423018d05b389c720624", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c661b2d1d3a9dbb9fa210b5f53cbcfcf1b0169bce37423018d05b389c720624", kill_on_drop: false }`
[INFO] [stdout] 0c661b2d1d3a9dbb9fa210b5f53cbcfcf1b0169bce37423018d05b389c720624
[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] 68dceb46c97382105f5657fee1593a3ea1e9c3fb7a4ec7b0cbaa0f68c4541bb2
[INFO] running `Command { std: "docker" "start" "-a" "68dceb46c97382105f5657fee1593a3ea1e9c3fb7a4ec7b0cbaa0f68c4541bb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling json_schema_test_suite_test_case v0.3.0
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling json_schema_test_suite_proc_macro v0.3.0
[INFO] [stdout] error[E0432]: unresolved import `syn::ItemFn`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/json_schema_test_suite_proc_macro-0.3.0/src/lib.rs:41:37
[INFO] [stdout]     |
[INFO] [stdout]  41 | use syn::{parse_macro_input, Ident, ItemFn};
[INFO] [stdout]     |                                     ^^^^^^ no `ItemFn` in the root
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/src/lib.rs:365:32
[INFO] [stdout]     |
[INFO] [stdout] 361 | #[cfg(feature = "full")]
[INFO] [stdout]     |       ---------------- the item is gated behind the `full` feature
[INFO] [stdout] ...
[INFO] [stdout] 365 |     ItemEnum, ItemExternCrate, ItemFn, ItemForeignMod, ItemImpl, ItemMacro, ItemMacro2, ItemMod,
[INFO] [stdout]     |                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json_schema_test_suite_proc_macro` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "68dceb46c97382105f5657fee1593a3ea1e9c3fb7a4ec7b0cbaa0f68c4541bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68dceb46c97382105f5657fee1593a3ea1e9c3fb7a4ec7b0cbaa0f68c4541bb2", kill_on_drop: false }`
[INFO] [stdout] 68dceb46c97382105f5657fee1593a3ea1e9c3fb7a4ec7b0cbaa0f68c4541bb2