update README.md, --update and aur

packaging/aur/dcr/PKGBUILD

@@ -1,6 +1,6 @@
 pkgname=dcr
 pkgver=0.2.1
-pkgrel=2
+pkgrel=3
 pkgdesc="Cargo-like utility to manage C/C++ projects"
 arch=('x86_64' 'aarch64')
 url="https://github.com/dexoron/dcr"
@@ -17,6 +17,8 @@ sha256sums=('30e334fa98cd51073c0fa84c80a982584b00156b57084311ad53419441ce6235')
 
 build() {
   cd "$srcdir/$pkgname-$pkgver"
+  export CARGO_PROFILE_RELEASE_LTO=false
+  export RUSTFLAGS="${RUSTFLAGS/-C link-arg=-fuse-ld=lld/}"
   cargo build --release --locked
 }