fix: rust nigtly

flake.nix

@@ -3,31 +3,53 @@
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
-
     crane.url = "github:ipetkov/crane";
-
     fenix = {
       url = "github:nix-community/fenix";
       inputs.nixpkgs.follows = "nixpkgs";
-      inputs.rust-analyzer-src.follows = "";
     };
-
     flake-utils.url = "github:numtide/flake-utils";
-
     advisory-db = {
       url = "github:rustsec/advisory-db";
       flake = false;
     };
   };
 
-  outputs = { self, nixpkgs, crane, fenix, flake-utils, advisory-db, ... }:
-    flake-utils.lib.eachDefaultSystem (system:
+  outputs =
+    {
+      self,
+      nixpkgs,
+      crane,
+      fenix,
+      flake-utils,
+      advisory-db,
+      ...
+    }:
+    flake-utils.lib.eachDefaultSystem (
+      system:
       let
         pkgs = nixpkgs.legacyPackages.${system};
 
         inherit (pkgs) lib;
 
-        craneLib = crane.mkLib pkgs;
+        craneLib = (crane.mkLib pkgs).overrideToolchain (
+          p:
+          (
+            let
+              fp = fenix.packages.${system};
+              fpc = fp.complete;
+            in
+            (fp.combine [
+              fpc.cargo
+              fpc.rustc
+              fpc.clippy
+              fpc.rust-src
+              fpc.rustc
+              fpc.rustfmt
+              fpc.rustc-codegen-cranelift-preview
+            ])
+          )
+        );
         src = craneLib.cleanCargoSource ./.;
 
         # Common arguments can be set here to avoid repeating them later
@@ -35,23 +57,26 @@
           inherit src;
           strictDeps = true;
 
-          buildInputs = [
-            # Add additional build inputs here
-          ] ++ lib.optionals pkgs.stdenv.isDarwin [
-            # Additional darwin specific inputs can be set here
-            pkgs.libiconv
-          ];
+          buildInputs =
+            [
+              # Add additional build inputs here
+            ]
+            ++ lib.optionals pkgs.stdenv.isDarwin [
+              # Additional darwin specific inputs can be set here
+              pkgs.libiconv
+            ];
 
           # Additional environment variables can be set directly
           # MY_CUSTOM_VAR = "some value";
         };
 
-        craneLibLLvmTools = craneLib.overrideToolchain
-          (fenix.packages.${system}.complete.withComponents [
+        craneLibLLvmTools = craneLib.overrideToolchain (
+          fenix.packages.${system}.complete.withComponents [
             "cargo"
             "llvm-tools"
             "rustc"
-          ]);
+          ]
+        );
 
         # Build *just* the cargo dependencies, so we can reuse
         # all of that work (e.g. via cachix) when running in CI
@@ -59,10 +84,13 @@
 
         # Build the actual crate itself, reusing the dependency
         # artifacts from above.
-        my-crate = craneLib.buildPackage (commonArgs // {
-          doCheck = false;
-          inherit cargoArtifacts;
-        });
+        my-crate = craneLib.buildPackage (
+          commonArgs
+          // {
+            doCheck = false;
+            inherit cargoArtifacts;
+          }
+        );
 
         # Define the Docker image build
         dockerImage = pkgs.dockerTools.buildImage {
@@ -87,10 +115,13 @@
           # Note that this is done as a separate derivation so that
           # we can block the CI if there are issues here, but not
           # prevent downstream consumers from building our crate by itself.
-          my-crate-clippy = craneLib.cargoClippy (commonArgs // {
-            inherit cargoArtifacts;
-            cargoClippyExtraArgs = "--all-targets -- --deny warnings";
-          });
+          my-crate-clippy = craneLib.cargoClippy (
+            commonArgs
+            // {
+              inherit cargoArtifacts;
+              cargoClippyExtraArgs = "--all-targets -- --deny warnings";
+            }
+          );
 
           # my-crate-doc = craneLib.cargoDoc (commonArgs // {
           #   inherit cargoArtifacts;
@@ -114,17 +145,22 @@
           # Run tests with cargo-nextest
           # Consider setting `doCheck = false` on `my-crate` if you do not want
           # the tests to run twice
-          my-crate-nextest = craneLib.cargoNextest (commonArgs // {
-            inherit cargoArtifacts;
-            partitions = 1;
-            partitionType = "count";
-          });
+          my-crate-nextest = craneLib.cargoNextest (
+            commonArgs
+            // {
+              inherit cargoArtifacts;
+              partitions = 1;
+              partitionType = "count";
+            }
+          );
         };
 
         packages = {
           default = my-crate;
-          inherit my-crate
-            dockerImage;
+          inherit
+            my-crate
+            dockerImage
+            ;
         };
 
         apps.default = flake-utils.lib.mkApp {
@@ -143,5 +179,6 @@
             # pkgs.ripgrep
           ];
         };
-      });
+      }
+    );
 }