backtrace • 0.3.68A library to acquire a stack trace (backtrace) at runtime in a Rust program.
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cc • 1.1.31A build-time dependency for Cargo build scripts to assist in invoking the native
C compiler to compile native C code into a static archive to be linked into Rust
code.
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1
cfg-if • 1.0.0A macro to ergonomically define an item depending on a large number of #[cfg]
parameters. Structured like an if-else chain, the first matching branch is the
item that gets emitted.
predicates • 0.9.1An implementation of boolean-valued predicate functions.
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proc-macro2 • 1.0.88A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case.
regex • 1.7.3An implementation of regular expressions for Rust. This implementation uses
finite automata and guarantees linear time matching on all inputs.