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# pre-build errors the crate depends on yanked dependencies: Updating crates.io index error: failed to select a version for the requirement `syn = "^0.10"` candidate versions found which didn't match: 2.0.87, 2.0.86, 2.0.85, ... location searched: crates.io index required by package `serde_codegen v0.9.0` ... which satisfies dependency `serde_codegen = "^0.9"` of package `cpp_to_rust_common v0.2.3 (/home/cratesfyi/workspace/builds/cpp_to_rust_common-0.2.3/source)` Stack backtrace: 0: anyhow::error::<impl core::convert::From<E> for anyhow::Error>::from 1: rustwide::prepare::Prepare::capture_lockfile 2: rustwide::prepare::Prepare::prepare 3: rustwide::build::BuildDirectory::run 4: docs_rs::docbuilder::rustwide_builder::RustwideBuilder::build_package 5: prometheus::histogram::Histogram::observe_closure_duration 6: docs_rs::utils::queue_builder::queue_builder 7: std::sys::backtrace::__rust_begin_short_backtrace 8: core::ops::function::FnOnce::call_once{{vtable.shim}} 9: std::sys::pal::unix::thread::Thread::new::thread_start 10: start_thread at /build/glibc-uZu3wS/glibc-2.27/nptl/pthread_create.c:463 11: __clone at /build/glibc-uZu3wS/glibc-2.27/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95