diff --git a/pkgs/development/compilers/rust/rustfmt-fix-self-tests.patch b/pkgs/development/compilers/rust/rustfmt-fix-self-tests.patch
new file mode 100644
index 000000000000..b60332daef44
--- /dev/null
+++ b/pkgs/development/compilers/rust/rustfmt-fix-self-tests.patch
@@ -0,0 +1,13 @@
+--- a/src/tools/rustfmt/src/ignore_path.rs
++++ b/src/tools/rustfmt/src/ignore_path.rs
+@@ -37,9 +37,9 @@
+     #[nightly_only_test]
+     #[test]
+     fn test_ignore_path_set() {
+-        use std::path::{Path, PathBuf};
+         use crate::config::{Config, FileName};
+         use crate::ignore_path::IgnorePathSet;
++        use std::path::{Path, PathBuf};
+ 
+         let config =
+             Config::from_toml(r#"ignore = ["foo.rs", "bar_dir/*"]"#, Path::new("")).unwrap();
diff --git a/pkgs/development/compilers/rust/rustfmt.nix b/pkgs/development/compilers/rust/rustfmt.nix
index f8ac8bf39df3..5916b6c07fb5 100644
--- a/pkgs/development/compilers/rust/rustfmt.nix
+++ b/pkgs/development/compilers/rust/rustfmt.nix
@@ -1,7 +1,7 @@
-{ lib, stdenv, rustPlatform, Security }:
+{ lib, stdenv, rustPlatform, Security, asNightly ? false }:
 
 rustPlatform.buildRustPackage rec {
-  pname = "rustfmt";
+  pname = "rustfmt" + lib.optionalString asNightly "-nightly";
   inherit (rustPlatform.rust.rustc) version src;
 
   # the rust source tarball already has all the dependencies vendored, no need to fetch them again
@@ -19,7 +19,10 @@ rustPlatform.buildRustPackage rec {
   # As of rustc 1.45.0, these env vars are required to build rustfmt (due to
   # https://github.com/rust-lang/rust/pull/72001)
   CFG_RELEASE = rustPlatform.rust.rustc.version;
-  CFG_RELEASE_CHANNEL = "stable";
+  CFG_RELEASE_CHANNEL = if asNightly then "nightly" else "stable";
+
+  # FIXME: seems fixed upstream, remove after the next update
+  patches = [ ./rustfmt-fix-self-tests.patch ];
 
   meta = with lib; {
     description = "A tool for formatting Rust code according to style guidelines";
diff --git a/pkgs/development/tools/rust/bindgen/unwrapped.nix b/pkgs/development/tools/rust/bindgen/unwrapped.nix
index 65ce8e20bc0e..f77e2feb4ff3 100644
--- a/pkgs/development/tools/rust/bindgen/unwrapped.nix
+++ b/pkgs/development/tools/rust/bindgen/unwrapped.nix
@@ -1,9 +1,11 @@
-{ lib, fetchFromGitHub, rustPlatform, clang, rustfmt, writeTextFile
+{ lib, fetchFromGitHub, rustPlatform, clang, rustfmt
 , runtimeShell
 , bash
 }:
-
-rustPlatform.buildRustPackage rec {
+let
+  # bindgen hardcodes rustfmt outputs that use nightly features
+  rustfmt-nightly = rustfmt.override { asNightly = true; };
+in rustPlatform.buildRustPackage rec {
   pname = "rust-bindgen-unwrapped";
   version = "0.59.2";
 
@@ -25,23 +27,10 @@ rustPlatform.buildRustPackage rec {
   '';
 
   doCheck = true;
-  checkInputs =
-    let fakeRustup = writeTextFile {
-      name = "fake-rustup";
-      executable = true;
-      destination = "/bin/rustup";
-      text = ''
-        #!${runtimeShell}
-        shift
-        shift
-        exec "$@"
-      '';
-    };
-  in [
-    rustfmt
-    fakeRustup # the test suite insists in calling `rustup run nightly rustfmt`
-    clang
-  ];
+  checkInputs = [ clang ];
+
+  RUSTFMT = "${rustfmt-nightly}/bin/rustfmt";
+
   preCheck = ''
     # for the ci folder, notably
     patchShebangs .