Created attachment 247763 [details] v1 (apply via "git am") The port isn't very well maintained (e.g., may not be updated for months, may lack upstream secfixes), is limited to amd64 (but aarch64 is Tier1 nowadays) and mainly intended to be used via DEFAULT_VERSIONS+=rust=rust-nightly. To enable unstable features one can pass RUSTC_BOOTSTRAP via environ(7) with values like "1" for all crates or limited by "crate1,crate2,...". The latter (limited by crate) only makes sense when some dependencies but not the primary distfile needs unstable features e.g., textproc/ripgrep, net-im/libsignal-node. Note, misc/amazon-qldb-shell appears to build fine *without* unstable features (tested with rust-1.75.0), so doesn't need RUSTC_BOOTSTRAP=1.