I have a crate with the following in Cargo.toml:

[lib]
crate_type = ["staticlib", "rlib"]

[profile.release]
lto = true

The static library it produces is around 4.4mb.

If remove rlib:

[lib]
crate_type = ["staticlib"]

[profile.release]
lto = true

The static library is around 1.3 mb.

It seems like building both an rlib and a static lib overrides profile.release? Or at least lto?

I'm trying to build both a static lib and an rlib because I want to build both a static library and a binary for the crate and the binary depends on the library.