Fix benchmarking of libstd

Author: bjorn3

std/Cargo.toml

@@ -7,6 +7,7 @@ license = "MIT OR Apache-2.0"
 repository = "https://github.com/rust-lang/rust.git"
 description = "The Rust Standard Library"
 edition = "2021"
+autobenches = false
 
 [lib]
 crate-type = ["dylib", "rlib"]