Opt in to generate-link-to-definition when building on docs.rs

Author: dtolnay

Cargo.toml

@@ -14,7 +14,7 @@ rust-version = "1.31"
 
 [package.metadata.docs.rs]
 rustc-args = ["--cfg", "procmacro2_semver_exempt"]
-rustdoc-args = ["--cfg", "procmacro2_semver_exempt", "--cfg", "doc_cfg"]
+rustdoc-args = ["--cfg", "procmacro2_semver_exempt", "--cfg", "doc_cfg", "--generate-link-to-definition"]
 targets = ["x86_64-unknown-linux-gnu"]
 
 [package.metadata.playground]