cc • 1.2.5A 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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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.
proc-macro2 • 1.0.92A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case.
regex • 1.8.4An implementation of regular expressions for Rust. This implementation uses
finite automata and guarantees linear time matching on all inputs.
scoped-tls • 1.0.1Library implementation of the standard library's old `scoped_thread_local!`
macro for providing scoped access to thread local storage (TLS) so any type can
be stored into TLS.
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scopeguard • 1.2.0A RAII scope guard that will run a given closure when it goes out of scope,
even if the code between panics (assuming unwinding panic).
Defines the macros `defer!`, `defer_on_unwind!`, `defer_on_success!` as
shorthands for guards with one of the implemented strategies.
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shlex • 1.3.0Split a string into shell words, like Python's shlex.