Every time I changed the Cargo.toml , cargo will build new version of dependency lib. For example , this is a list of libquote
561,454 libquote-082a9038c0167971.rlib 250,996 libquote-082a9038c0167971.rmeta 526,214 libquote-6d4302204bc43d15.rlib 247,751 libquote-6d4302204bc43d15.rmeta
they have slightly different size, what does this mean? ( I have checked the output of cargo tree, all dependency of quote is the same version ). Can I have just a single copy? Many thanks!!!