rust: move split src files away in build function

This matches what was already being done for the split docs package.

mingw-w64-rust/PKGBUILD

@@ -218,6 +218,9 @@ build() {
     mv dest-rust/${MINGW_PREFIX}/share/doc dest-doc
   fi
 
+  # move src out of the way for splitting
+  mv dest-rust/${MINGW_PREFIX}/lib/rustlib/src dest-src
+
   rm -f dest-rust/${MINGW_PREFIX}/lib/rustlib/$OSTYPE/lib/self-contained/*
 }
 
@@ -249,9 +252,6 @@ package_rust() {
   install -d "$pkgdir/${MINGW_PREFIX}/share/bash-completion/completions"
   mv "${pkgdir}${MINGW_PREFIX}/etc/bash_completion.d/cargo" \
      "${pkgdir}${MINGW_PREFIX}/share/bash-completion/completions/cargo"
-
-  install -d "${srcdir}/${MSYSTEM}/dest-src${MINGW_PREFIX}/lib/rustlib/src"
-  mv src/* "${srcdir}/${MSYSTEM}/dest-src${MINGW_PREFIX}/lib/rustlib/src"
 }
 
 package_rust-docs() {
@@ -270,7 +270,11 @@ package_rust-src() {
   pkgdesc='Source code for the Rust standard library (mingw-w64)'
 
   cd "${srcdir}/${MSYSTEM}"
-  cp -a dest-src/* ${pkgdir}
+  install -Dm644 "${srcdir}"/${_realname}c-${pkgver}-src/LICENSE-APACHE "${pkgdir}${MINGW_PREFIX}/share/licenses/$pkgname/LICENSE-APACHE"
+  install -Dm644 "${srcdir}"/${_realname}c-${pkgver}-src/LICENSE-MIT "${pkgdir}${MINGW_PREFIX}/share/licenses/$pkgname/LICENSE-MIT"
+
+  install -d "${pkgdir}/${MINGW_PREFIX}/lib/rustlib/src"
+  cp -a dest-src "${pkgdir}/${MINGW_PREFIX}/lib/rustlib/src"
 }
 
 # template start; name=mingw-w64-splitpkg-wrappers; version=1.0;