Cargo: invalid character `.` in crate name

Question

Assume I want my executable to be named "index.cgi" (or any other name which is not a correct Rust crate name) and to be built with Cargo.
Is there any way in Cargo to specify a name of output executable, or rename an executable in a post-build step? The documentation of Cargo is very scarce and I haven't found anything there. (A brief look at the sources didn't helped much too.)

Answer 1

The crate name and executable names must both be valid Rust identifiers.

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You can set the name of an output executable (see 'Configuring a target' in the documentation for Cargo's manifest format), but it also has to be a valid identifier.

[[bin]]
name = "index.cgi"
path = "src/main.rs"