alacritty: don't ignore Cargo.lock on install

srcpkgs/alacritty/template

@@ -1,7 +1,7 @@
 # Template file for 'alacritty'
 pkgname=alacritty
 version=0.4.0
-revision=1
+revision=2
 build_style=cargo
 hostmakedepends="pkg-config python3"
 makedepends="freetype-devel fontconfig-devel libxcb-devel"
@@ -15,7 +15,7 @@ distfiles="https://github.com/jwilm/${pkgname}/archive/v${version}.tar.gz"
 checksum=cbc0da74f313a806efed02fa863eece4b422c52e24832b553cd8592832c591e3
 
 do_install() {
-	cargo install --path ${pkgname} --target ${RUST_TARGET} --root="${DESTDIR}/usr"
+	cargo install --path ${pkgname} --target ${RUST_TARGET} --root="${DESTDIR}/usr" --locked
 	rm "${DESTDIR}"/usr/.crates.toml
 }