Remove rust-toolchain.toml and reformat Nix sources

crane.nix

@@ -19,13 +19,16 @@ let
 
   # For easy cross-compilation in devShells
   # We are just composing the pkgsCross.*.stdenv.cc together
-  crossPlatforms = let
-    makeCrossPlatform = crossSystem: let
+  crossPlatforms =
+    let
+      makeCrossPlatform = crossSystem:
+        let
           pkgsCross =
             if crossSystem == system then pkgs
-        else import pkgs.path {
+            else
+              import pkgs.path {
                 inherit system crossSystem;
-          overlays = [];
+                overlays = [ ];
               };
 
           rustTargetSpec = rust.toRustTargetSpec pkgsCross.pkgsStatic.stdenv.hostPlatform;
@@ -35,7 +38,8 @@ let
           cargoCcEnv = "CC_${rustTargetSpecUnderscored}"; # for ring
 
           cc = "${pkgsCross.stdenv.cc}/bin/${pkgsCross.stdenv.cc.targetPrefix}cc";
-    in {
+        in
+        {
           name = crossSystem;
           value = {
             inherit rustTargetSpec cc;
@@ -47,12 +51,14 @@ let
           };
         };
       systems = lib.filter (s: s == system || lib.hasInfix "linux" s) supportedSystems;
-  in builtins.listToAttrs (map makeCrossPlatform systems);
+    in
+    builtins.listToAttrs (map makeCrossPlatform systems);
 
   cargoTargets = lib.mapAttrsToList (_: p: p.rustTargetSpec) crossPlatforms;
-  cargoCrossEnvs = lib.foldl (acc: p: acc // p.env) {} (builtins.attrValues crossPlatforms);
+  cargoCrossEnvs = lib.foldl (acc: p: acc // p.env) { } (builtins.attrValues crossPlatforms);
 
-  buildFor = system: let
+  buildFor = system:
+    let
       crossPlatform = crossPlatforms.${system};
       inherit (crossPlatform) pkgs;
       craneLib = (crane.mkLib pkgs).overrideToolchain rustNightly;
@@ -60,18 +66,18 @@ let
         cargoToml = ./Cargo.toml;
       };
 
-    src = nix-gitignore.gitignoreSource [] ./.;
+      src = nix-gitignore.gitignoreSource [ ] ./.;
 
       commonArgs = {
         inherit (crateName) pname version;
         inherit src;
 
-      buildInputs = with pkgs; []
+        buildInputs = with pkgs; [ ]
           ++ lib.optionals pkgs.stdenv.isDarwin [
           darwin.apple_sdk.frameworks.Security
         ];
 
-      nativeBuildInputs = with pkgs; []
+        nativeBuildInputs = with pkgs; [ ]
           # The Rust toolchain from rust-overlay has a dynamic libiconv in depsTargetTargetPropagated
           # Our static libiconv needs to take precedence
           ++ lib.optionals pkgs.stdenv.isDarwin [
@@ -93,10 +99,12 @@ let
         cargoArtifacts = craneLib.buildDepsOnly commonArgs;
 
         # The resulting executable must be standalone
-      allowedRequisites = [];
+        allowedRequisites = [ ];
       });
-  in crate;
-in {
+    in
+    crate;
+in
+{
   inherit crossPlatforms cargoTargets cargoCrossEnvs rustNightly;
 
   flake-checker = buildFor system;

flake.nix

@@ -22,9 +22,12 @@
     };
   };
 
-  outputs = { self, nixpkgs, flake-utils, rust-overlay, crane, ... }: let
+  outputs = { self, nixpkgs, flake-utils, rust-overlay, crane, ... }:
+    let
       supportedSystems = flake-utils.lib.defaultSystems;
-  in flake-utils.lib.eachSystem supportedSystems (system: let
+    in
+    flake-utils.lib.eachSystem supportedSystems (system:
+      let
         pkgs = import nixpkgs {
           inherit system;
           overlays = [
@@ -37,7 +40,8 @@
         cranePkgs = pkgs.callPackage ./crane.nix {
           inherit crane supportedSystems;
         };
-  in {
+      in
+      {
         packages = rec {
           inherit (cranePkgs) flake-checker;
           default = flake-checker;

rust-toolchain.toml

@@ -1,2 +0,0 @@
-[toolchain]
-channel = "1.69.0"