cargo.env("CFG_RELEASE_CHANNEL", &builder.config.channel);
cargo.env("CFG_VERSION", builder.rust_version());
cargo.env("CFG_RELEASE_NUM", &builder.version);
+ cargo.env("DOC_RUST_LANG_ORG_CHANNEL", builder.doc_rust_lang_org_channel());
let info = GitInfo::new(builder.config.ignore_git, &dir);
if let Some(sha) = info.sha() {