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# pre-build errors
the crate depends on missing dependencies
Stack backtrace:
0: anyhow::error::<impl core::convert::From<E> for anyhow::Error>::from
1: docs_rs::docbuilder::rustwide_builder::RustwideBuilder::build_package
2: prometheus::histogram::Histogram::observe_closure_duration
3: docs_rs::build_queue::BuildQueue::build_next_queue_package
4: docs_rs::utils::queue_builder::queue_builder
5: std::sys_common::backtrace::__rust_begin_short_backtrace
6: core::ops::function::FnOnce::call_once{{vtable.shim}}
7: std::sys::pal::unix::thread::Thread::new::thread_start
8: start_thread
at /build/glibc-uZu3wS/glibc-2.27/nptl/pthread_create.c:463
9: clone
at /build/glibc-uZu3wS/glibc-2.27/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95