Compilable now

Signed-off-by: neojou <neojou@gmail.com>

solana-1.13.5/cargo

@@ -25,4 +25,4 @@ case "$1" in
 esac
 
 set -x
-exec cargo "+${toolchain}" "${@}"
+exec cargo "${@}"

solana-1.13.5/ci/rust-version.sh

@@ -38,10 +38,11 @@ export rust_nightly_docker_image=solanalabs/rust-nightly:"$nightly_version"
 
   rustup_install() {
     declare toolchain=$1
-    if ! cargo +"$toolchain" -V > /dev/null; then
+#    if ! cargo +"$toolchain" -V > /dev/null; then
+    if ! cargo -vv build  > /dev/null; then
       echo "$0: Missing toolchain? Installing...: $toolchain" >&2
       rustup install "$toolchain"
-      cargo +"$toolchain" -V
+      cargo -vv build
     fi
   }