refactor: remove uses of deprecated "rust.toRustTarget"

overlays/cross.nix

@@ -312,9 +312,9 @@ in with final; {
   #      cxxForBuild = "${buildPackages.stdenv.cc}/bin/${buildPackages.stdenv.cc.targetPrefix}c++";
   #      ccForHost = "${stdenv.cc}/bin/${stdenv.cc.targetPrefix}cc";
   #      cxxForHost = "${stdenv.cc}/bin/${stdenv.cc.targetPrefix}c++";
-  #      rustBuildPlatform = rust.toRustTarget stdenv.buildPlatform;
-  #      rustTargetPlatform = rust.toRustTarget stdenv.hostPlatform;
-  #      rustTargetPlatformSpec = rust.toRustTargetSpec stdenv.hostPlatform;
+  #      rustBuildPlatform = stdenv.buildPlatform.rust.rustcTarget;
+  #      rustTargetPlatform = stdenv.hostPlatform.rust.rustcTarget;
+  #      rustTargetPlatformSpec = stdenv.hostPlatform.rust.rustcTargetSpec;
   #    in {
   #      # taken from <pkgs/build-support/rust/hooks/default.nix>
   #      # fixes "cargo:warning=aarch64-unknown-linux-gnu-gcc: error: unrecognized command-line option ‘-m64’"
@@ -599,16 +599,12 @@ in with final; {
   #   ];
   # });
 
-  lemoa = (prev.lemoa.override { cargo = crossCargo; }).overrideAttrs (upstream:
-    let
-      rustTargetPlatform = rust.toRustTarget stdenv.hostPlatform;
-    in {
-      preBuild = ''
-        mkdir -p target/release
-        ln -s ../${rustTargetPlatform}/release/lemoa target/release/lemoa
-      '';
-    }
-  );
+  lemoa = (prev.lemoa.override { cargo = crossCargo; }).overrideAttrs (upstream: {
+    preBuild = ''
+      mkdir -p target/release
+      ln -s ../${stdenv.hostPlatform.rust.rustcTarget}/release/lemoa target/release/lemoa
+    '';
+  });
 
   # libgweather = prev.libgweather.overrideAttrs (upstream: {
   #   nativeBuildInputs = (lib.remove gobject-introspection upstream.nativeBuildInputs) ++ [
@@ -784,7 +780,7 @@ in with final; {
     postPatch = (upstream.postPatch or "") + ''
       substituteInPlace src/meson.build --replace-fail \
         "'src' / rust_target" \
-        "'src' / '${rust.toRustTarget stdenv.hostPlatform}' / rust_target"
+        "'src' / '${stdenv.hostPlatform.rust.rustcTarget}' / rust_target"
 
       rm build.rs
 
@@ -800,14 +796,12 @@ in with final; {
     '';
 
     env = let
-      inherit buildPackages stdenv rust;
       ccForBuild = "${buildPackages.stdenv.cc}/bin/${buildPackages.stdenv.cc.targetPrefix}cc";
       cxxForBuild = "${buildPackages.stdenv.cc}/bin/${buildPackages.stdenv.cc.targetPrefix}c++";
       ccForHost = "${stdenv.cc}/bin/${stdenv.cc.targetPrefix}cc";
       cxxForHost = "${stdenv.cc}/bin/${stdenv.cc.targetPrefix}c++";
-      rustBuildPlatform = rust.toRustTarget stdenv.buildPlatform;
-      rustTargetPlatform = rust.toRustTarget stdenv.hostPlatform;
-      rustTargetPlatformSpec = rust.toRustTargetSpec stdenv.hostPlatform;
+      rustBuildPlatform = stdenv.buildPlatform.rust.rustcTarget;
+      rustTargetPlatform = stdenv.hostPlatform.rust.rustcTarget;
     in (upstream.env or {}) // {
       # taken from <pkgs/build-support/rust/hooks/default.nix>
       # fixes "cargo:warning=aarch64-unknown-linux-gnu-gcc: error: unrecognized command-line option ‘-m64’"
@@ -948,14 +942,11 @@ in with final; {
   # 2024/09/01: upstreaming is unblocked
   pwvucontrol = (prev.pwvucontrol.override {
     cargo = crossCargo;
-  }).overrideAttrs (upstream:
-  let
-    rustTargetPlatform = rust.toRustTarget stdenv.hostPlatform;
-  in {
+  }).overrideAttrs (upstream: {
     postPatch = (upstream.postPatch or "") + ''
       substituteInPlace src/meson.build --replace-fail \
         "'src' / rust_target" \
-        "'src' / '${rustTargetPlatform}' / rust_target"
+        "'src' / '${stdenv.hostPlatform.rust.rustcTarget}' / rust_target"
     '';
   });
 
@@ -1103,7 +1094,7 @@ in with final; {
   #       # ERROR: 'rust' compiler binary not defined in cross or native file
   #       crossFile = writeText "cross-file.conf" ''
   #         [binaries]
-  #         rust = [ 'rustc', '--target', '${rust.toRustTargetSpec stdenv.hostPlatform}' ]
+  #         rust = [ 'rustc', '--target', '${stdenv.hostPlatform.rust.rustcTargetSpec}' ]
   #       '';
   #     in
   #       # upstream.mesonFlags or [] ++

pkgs/additional/flare-signal-nixified/default.nix

@@ -12,33 +12,26 @@
 #   - link to signald JMP.chat: NO (http 405)
 #   - primary device via JMP.chat: NO (http 422)
 #   - link to iOS tel: NO (http 405)
-{ lib
-, appstream-glib
-, blueprint-compiler
-, buildPackages
-, defaultCrateOverrides
-, desktop-file-utils
-, fetchFromGitLab
-, flare-signal
-, gdk-pixbuf
-, glib
-, gobject-introspection
-, gst_all_1
-, gtk4
-, gtksourceview5
-, libadwaita
-, libsecret
-, libspelling
-, meson
-, ninja
-, pkg-config
-, pkgs
-, protobuf
-, rust
-, stdenv
-, wrapGAppsHook4
-, writeText
-, crateOverrideFn ? x: x
+{
+  appstream-glib,
+  blueprint-compiler,
+  defaultCrateOverrides,
+  desktop-file-utils,
+  fetchFromGitLab,
+  gst_all_1,
+  gtk4,
+  gtksourceview5,
+  lib,
+  libadwaita,
+  meson,
+  ninja,
+  pkg-config,
+  pkgs,
+  protobuf,
+  stdenv,
+  wrapGAppsHook4,
+  writeText,
+  crateOverrideFn ? x: x,
 }:
 let
   extraCrateOverrides = {
@@ -84,7 +77,7 @@ let
         # kinda silly though, since we patch out the actual cargo (rustc) invocations.
         crossFile = writeText "cross-file.conf" ''
         [binaries]
-        rust = [ 'rustc', '--target', '${rust.toRustTargetSpec stdenv.hostPlatform}' ]
+        rust = [ 'rustc', '--target', '${stdenv.hostPlatform.rust.rustcTargetSpec}' ]
       '';
       in
         lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [

pkgs/additional/fractal-nixified/default.nix

@@ -9,35 +9,33 @@
 # - re-run that crate2nix step
 # - update `src` rev to match the local checkout!
 
-{ pkgs
-, lib
-, stdenv
-, appstream-glib
-, buildPackages
-, cargo
-, defaultCrateOverrides
-, desktop-file-utils
-, fetchFromGitHub
-, gdk-pixbuf
-, glib
-, gst_all_1
-, gtk4
-, gtksourceview5
-, libadwaita
-, libshumate
-, meson
-, ninja
-, openssl
-, pipewire
-, pkg-config
-, rust
-, rustPlatform
-, sqlite
-, wrapGAppsHook4
-, writeText
-, xdg-desktop-portal
-, optimize ? true
-, crateOverrideFn ? x: x
+{
+  appstream-glib,
+  buildPackages,
+  defaultCrateOverrides,
+  desktop-file-utils,
+  gdk-pixbuf,
+  glib,
+  gst_all_1,
+  gtk4,
+  gtksourceview5,
+  lib,
+  libadwaita,
+  libshumate,
+  meson,
+  ninja,
+  openssl,
+  pipewire,
+  pkg-config,
+  pkgs,
+  rustPlatform,
+  sqlite,
+  stdenv,
+  wrapGAppsHook4,
+  writeText,
+  xdg-desktop-portal,
+  optimize ? true,
+  crateOverrideFn ? x: x,
 }:
 let mkConfigured = { optimize }:
 let
@@ -94,7 +92,7 @@ let
         # kinda silly though, since we patch out the actual cargo (rustc) invocations.
         crossFile = writeText "cross-file.conf" ''
         [binaries]
-        rust = [ 'rustc', '--target', '${rust.toRustTargetSpec stdenv.hostPlatform}' ]
+        rust = [ 'rustc', '--target', '${stdenv.hostPlatform.rust.rustcTargetSpec}' ]
       '';
       in
         lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [

pkgs/additional/newsflash-nixified/default.nix

@@ -4,34 +4,22 @@
 #
 # the generated Cargo.nix points to an impure source (~/ref/...), but that's resolved by overriding `src` below.
 {
-  lib,
   appstream-glib,
-  clapper,
   blueprint-compiler,
+  clapper,
   defaultCrateOverrides,
   desktop-file-utils,
   fetchFromGitLab,
-  gdk-pixbuf,
-  glib,
-  glib-networking,
   gst_all_1,
-  gtk4,
+  lib,
   libadwaita,
-  librsvg,
   libxml2,
   meson,
   ninja,
-  openssl,
   pkg-config,
   pkgs,
-  rust,
-  sqlite,
-  stdenv,
   webkitgtk_6_0,
   wrapGAppsHook4,
-  writeText,
-  xdg-utils,
-  crateOverrideFn ? x: x,
 }:
 let
   extraCrateOverrides = {
@@ -89,7 +77,7 @@ let
       #   # kinda silly though, since we patch out the actual cargo (rustc) invocations.
       #   crossFile = writeText "cross-file.conf" ''
       #   [binaries]
-      #   rust = [ 'rustc', '--target', '${rust.toRustTargetSpec stdenv.hostPlatform}' ]
+      #   rust = [ 'rustc', '--target', '${stdenv.hostPlatform.rust.rustcTargetSpec}' ]
       # '';
       # in
       #   lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [