update flake.lock

Also switch names to match the newer upstream nixpkgs code.

Flake lock file updates:

• Updated input 'attic':
    'github:zhaofengli/attic/fbe252a5c21febbe920c025560cbd63b20e24f3b' (2024-01-18)
  → 'github:zhaofengli/attic/6eabc3f02fae3683bffab483e614bebfcd476b21' (2024-02-14)
• Updated input 'fenix':
    'github:nix-community/fenix/e132ea0eb0c799a2109a91688e499d7bf4962801' (2024-01-18)
  → 'github:nix-community/fenix/c8943ea9e98d41325ff57d4ec14736d330b321b2' (2024-03-05)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/9d9b34354d2f13e33568c9c55b226dd014a146a0' (2024-01-17)
  → 'github:rust-lang/rust-analyzer/9f14343f9ee24f53f17492c5f9b653427e2ad15e' (2024-03-04)
• Updated input 'flake-utils':
    'github:numtide/flake-utils/1ef2e671c3b0c19053962c07dbda38332dcebf26' (2024-01-15)
  → 'github:numtide/flake-utils/d465f4819400de7c8d874d50b982301f28a84605' (2024-02-28)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/842d9d80cfd4560648c785f8a4e6f3b096790e19' (2024-01-17)
  → 'github:NixOS/nixpkgs/b8697e57f10292a6165a20f03d2f42920dfaf973' (2024-03-03)

flake.lock

@@ -9,11 +9,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1705617092,
-        "narHash": "sha256-n9PK4O4X4S1JkwpkMuYm1wHZYJzRqif8g3RuVIPD+rY=",
+        "lastModified": 1707922053,
+        "narHash": "sha256-wSZjK+rOXn+UQiP1NbdNn5/UW6UcBxjvlqr2wh++MbM=",
         "owner": "zhaofengli",
         "repo": "attic",
-        "rev": "fbe252a5c21febbe920c025560cbd63b20e24f3b",
+        "rev": "6eabc3f02fae3683bffab483e614bebfcd476b21",
         "type": "github"
       },
       "original": {
@@ -73,11 +73,11 @@
         "rust-analyzer-src": "rust-analyzer-src"
       },
       "locked": {
-        "lastModified": 1705559032,
-        "narHash": "sha256-Cb+Jd1+Gz4Wi+8elPnUIHnqQmE1qjDRZ+PsJaPaAffY=",
+        "lastModified": 1709619709,
+        "narHash": "sha256-l6EPVJfwfelWST7qWQeP6t/TDK3HHv5uUB1b2vw4mOQ=",
         "owner": "nix-community",
         "repo": "fenix",
-        "rev": "e132ea0eb0c799a2109a91688e499d7bf4962801",
+        "rev": "c8943ea9e98d41325ff57d4ec14736d330b321b2",
         "type": "github"
       },
       "original": {
@@ -138,11 +138,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1705309234,
-        "narHash": "sha256-uNRRNRKmJyCRC/8y1RqBkqWBLM034y4qN7EprSdmgyA=",
+        "lastModified": 1709126324,
+        "narHash": "sha256-q6EQdSeUZOG26WelxqkmR7kArjgWCdw5sfJVHPH/7j8=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "1ef2e671c3b0c19053962c07dbda38332dcebf26",
+        "rev": "d465f4819400de7c8d874d50b982301f28a84605",
         "type": "github"
       },
       "original": {
@@ -200,11 +200,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1705496572,
-        "narHash": "sha256-rPIe9G5EBLXdBdn9ilGc0nq082lzQd0xGGe092R/5QE=",
+        "lastModified": 1709479366,
+        "narHash": "sha256-n6F0n8UV6lnTZbYPl1A9q1BS0p4hduAv1mGAP17CVd0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "842d9d80cfd4560648c785f8a4e6f3b096790e19",
+        "rev": "b8697e57f10292a6165a20f03d2f42920dfaf973",
         "type": "github"
       },
       "original": {
@@ -228,11 +228,11 @@
     "rust-analyzer-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1705523001,
-        "narHash": "sha256-TWq5vJ6m+9HGSDMsQAmz1TMegMi79R3TTyKjnPWsQp8=",
+        "lastModified": 1709571018,
+        "narHash": "sha256-ISFrxHxE0J5g7lDAscbK88hwaT5uewvWoma9TlFmRzM=",
         "owner": "rust-lang",
         "repo": "rust-analyzer",
-        "rev": "9d9b34354d2f13e33568c9c55b226dd014a146a0",
+        "rev": "9f14343f9ee24f53f17492c5f9b653427e2ad15e",
         "type": "github"
       },
       "original": {

flake.nix

@@ -55,7 +55,7 @@
         # bindgen needs the build platform's libclang. Apparently due to
         # "splicing weirdness", pkgs.rustPlatform.bindgenHook on its own doesn't
         # quite do the right thing here.
-        pkgs.buildPackages.rustPlatform.bindgenHook
+        pkgs.pkgsBuildHost.rustPlatform.bindgenHook
       ];
 
       env = pkgs: {
@@ -83,7 +83,7 @@
               # these flags when using a different linker. Don't ask me why,
               # though, because I don't know. All I know is it breaks otherwise.
               #
-              # [0]: https://github.com/NixOS/nixpkgs/blob/612f97239e2cc474c13c9dafa0df378058c5ad8d/pkgs/build-support/rust/lib/default.nix#L36-L39
+              # [0]: https://github.com/NixOS/nixpkgs/blob/5cdb38bb16c6d0a38779db14fcc766bc1b2394d6/pkgs/build-support/rust/lib/default.nix#L37-L40
               (
                 # Nixpkgs doesn't check for x86_64 here but we do, because I
                 # observed a failure building statically for x86_64 without
@@ -107,7 +107,7 @@
       # even covers the case of build scripts that need native code compiled and
       # run on the build platform (I think).
       #
-      # [0]: https://github.com/NixOS/nixpkgs/blob/612f97239e2cc474c13c9dafa0df378058c5ad8d/pkgs/build-support/rust/lib/default.nix#L64-L78
+      # [0]: https://github.com/NixOS/nixpkgs/blob/5cdb38bb16c6d0a38779db14fcc766bc1b2394d6/pkgs/build-support/rust/lib/default.nix#L57-L80
       // (
         let
           inherit (pkgs.rust.lib) envVars;
@@ -145,8 +145,8 @@
           "CC_${cargoEnvVarTarget}" = envVars.ccForBuild;
           "CXX_${cargoEnvVarTarget}" = envVars.cxxForBuild;
           "CARGO_TARGET_${cargoEnvVarTarget}_LINKER" = envVars.linkerForBuild;
-          HOST_CC = "${pkgs.buildPackages.stdenv.cc}/bin/cc";
-          HOST_CXX = "${pkgs.buildPackages.stdenv.cc}/bin/c++";
+          HOST_CC = "${pkgs.pkgsBuildHost.stdenv.cc}/bin/cc";
+          HOST_CXX = "${pkgs.pkgsBuildHost.stdenv.cc}/bin/c++";
         }
       ));