2 files changed, 6 insertions, 6 deletions
diff --git a/nixpkgs/pkgs/build-support/rust/build-rust-package/default.nix b/nixpkgs/pkgs/build-support/rust/build-rust-package/default.nix
index 8b87bcbee3af..8707ce084705 100644
--- a/nixpkgs/pkgs/build-support/rust/build-rust-package/default.nix
+++ b/nixpkgs/pkgs/build-support/rust/build-rust-package/default.nix
@@ -1,7 +1,6 @@
 { lib
 , importCargoLock
 , fetchCargoTarball
-, rust
 , stdenv
 , callPackage
 , cargoBuildHook
@@ -80,13 +79,13 @@ let
           sha256 = args.cargoSha256;
         } // depsExtraArgs);
 
-      target = rust.toRustTargetSpec stdenv.hostPlatform;
+      target = stdenv.hostPlatform.rust.rustcTargetSpec;
       targetIsJSON = lib.hasSuffix ".json" target;
       useSysroot = targetIsJSON && !__internal_dontAddSysroot;
 
       sysroot = callPackage ./sysroot { } {
         inherit target;
-        shortTarget = rust.lib.toRustTargetSpecShort stdenv.hostPlatform;
+        shortTarget = stdenv.hostPlatform.rust.cargoShortTarget;
         RUSTFLAGS = args.RUSTFLAGS or "";
         originalCargoToml = src + /Cargo.toml; # profile info is later extracted
       };
@@ -158,7 +157,8 @@ let
           # Platforms without host tools from
           # https://doc.rust-lang.org/nightly/rustc/platform-support.html
           "armv7a-darwin"
-          "armv5tel-linux" "armv7a-linux" "m68k-linux" "riscv32-linux"
+          "armv5tel-linux" "armv7a-linux" "m68k-linux" "mipsel-linux"
+          "mips64el-linux" "riscv32-linux"
           "armv6l-netbsd"
           "x86_64-redox"
           "wasm32-wasi"
diff --git a/nixpkgs/pkgs/build-support/rust/build-rust-package/sysroot/default.nix b/nixpkgs/pkgs/build-support/rust/build-rust-package/sysroot/default.nix
index a6d53056d9c7..bb95b7bdc35c 100644
--- a/nixpkgs/pkgs/build-support/rust/build-rust-package/sysroot/default.nix
+++ b/nixpkgs/pkgs/build-support/rust/build-rust-package/sysroot/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, rust, rustPlatform, buildPackages }:
+{ lib, stdenv, rustPlatform, buildPackages }:
 
 { shortTarget, originalCargoToml, target, RUSTFLAGS }:
 
@@ -26,7 +26,7 @@ in rustPlatform.buildRustPackage {
     done
 
     export RUST_SYSROOT=$(rustc --print=sysroot)
-    host=${rust.toRustTarget stdenv.buildPlatform}
+    host=${stdenv.buildPlatform.rust.rustcTarget}
     cp -r $RUST_SYSROOT/lib/rustlib/$host $out
   '';