feat: switch to crane

Should provide better caching of the intermediate build artifacts.

default.nix

@@ -1,43 +0,0 @@
-{ lib, rustPlatform }:
-let
-  readToml = path: builtins.fromTOML (builtins.readFile path);
-  cargoToml = readToml ./Cargo.toml;
-  pname = cargoToml.package.name;
-  inherit (cargoToml.package) version description;
-  src = lib.cleanSourceWith {
-    src = ./.;
-    name = "${pname}-source";
-    # Adapted from <https://github.com/ipetkov/crane/blob/master/lib/filterCargoSources.nix>
-    # no need to pull in crane for just this
-    filter =
-      orig_path: type:
-      let
-        path = toString orig_path;
-        base = baseNameOf path;
-        matchesSuffix = lib.any (suffix: lib.hasSuffix suffix base) [
-          # Rust sources
-          ".rs"
-          # TOML files are often used to configure cargo based tools (e.g. .cargo/config.toml)
-          ".toml"
-          # Snapshot tests
-          ".snap"
-        ];
-        isCargoLock = base == "Cargo.lock";
-      in
-      type == "directory" || matchesSuffix || isCargoLock;
-  };
-in
-rustPlatform.buildRustPackage {
-  inherit pname version src;
-  cargoLock.lockFile = ./Cargo.lock;
-  useNextest = true;
-  NEXTEST_HIDE_PROGRESS_BAR = 1;
-  NEXTEST_FAILURE_OUTPUT = "immediate-final";
-
-  meta = {
-    inherit description;
-    license = lib.licenses.mit;
-    homepage = "https://github.com/jalil-salame/webnsupdate";
-    mainProgram = "webnsupdate";
-  };
-}