[empath75]

rust doesn't use dynamic linking, which contributes a lot to that size.

[kingosticks]

Wont a crate compiled with 'crate_type = "dylib"' be dynamically linked if you specify '-C prefer-dynamic' when compiling your program?

https://doc.rust-lang.org/reference/linkage.html

[skolemtotem]

This is pedantic, but rust does link dynamically, but only to libc.

[steveklabnik]

It can, but for practical reasons, generally does not. For Rust code anyway; often anything bound via FFI is dynamically linked.