Actually try to install from source when the error message says "binary failed, trying source".

nvm.sh

@@ -1247,13 +1247,16 @@ nvm() {
         elif [ "$NVM_IOJS" != true ] && nvm_install_node_binary "$VERSION" "$REINSTALL_PACKAGES_FROM"; then
           NVM_INSTALL_SUCCESS=true
         fi
-      elif [ "$NVM_IOJS" = true ]; then
+      fi
+      if [ "$NVM_INSTALL_SUCCESS" != true ]; then
+        if [ "$NVM_IOJS" = true ]; then
           # nvm_install_iojs_source "$VERSION" "$ADDITIONAL_PARAMETERS"
           echo "Installing iojs from source is not currently supported" >&2
           return 105
         elif nvm_install_node_source "$VERSION" "$ADDITIONAL_PARAMETERS"; then
           NVM_INSTALL_SUCCESS=true
         fi
+      fi
 
       if [ "$NVM_INSTALL_SUCCESS" = true ] && nvm use "$VERSION"; then
         if [ ! -z "$REINSTALL_PACKAGES_FROM" ] \