--- a/rust.url	2021-06-20 17:23:08.661832156 +0000
+++ b/rust.url	2021-06-20 19:43:40.992058943 +0000
@@ -33,3 +33,13 @@
 lftpget https://static.rust-lang.org/dist/${BOOTSTRAP_DATE}/cargo-${BOOTSTRAP_CARGO}-x86_64-unknown-linux-gnu.tar.xz
 lftpget https://static.rust-lang.org/dist/${BOOTSTRAP_DATE}/rust-std-${BOOTSTRAP_VERSION}-x86_64-unknown-linux-gnu.tar.xz
 lftpget https://static.rust-lang.org/dist/${BOOTSTRAP_DATE}/rustc-${BOOTSTRAP_VERSION}-x86_64-unknown-linux-gnu.tar.xz
+
+# aarch64 bootstrap:
+lftpget https://static.rust-lang.org/dist/${BOOTSTRAP_DATE}/cargo-${BOOTSTRAP_CARGO}-aarch64-unknown-linux-gnu.tar.gz
+lftpget https://static.rust-lang.org/dist/${BOOTSTRAP_DATE}/rust-std-${BOOTSTRAP_VERSION}-aarch64-unknown-linux-gnu.tar.gz
+lftpget https://static.rust-lang.org/dist/${BOOTSTRAP_DATE}/rustc-${BOOTSTRAP_VERSION}-aarch64-unknown-linux-gnu.tar.gz
+
+# riscv64 bootstrap:
+lftpget https://static.rust-lang.org/dist/${BOOTSTRAP_DATE}/cargo-${BOOTSTRAP_CARGO}-riscv64gc-unknown-linux-gnu.tar.gz
+lftpget https://static.rust-lang.org/dist/${BOOTSTRAP_DATE}/rust-std-${BOOTSTRAP_VERSION}-riscv64gc-unknown-linux-gnu.tar.gz
+lftpget https://static.rust-lang.org/dist/${BOOTSTRAP_DATE}/rustc-${BOOTSTRAP_VERSION}-riscv64gc-unknown-linux-gnu.tar.gz
