diff --git a/scripts/source_development_defaults.sh b/scripts/source_development_defaults.sh
--- a/scripts/source_development_defaults.sh
+++ b/scripts/source_development_defaults.sh
@@ -19,3 +19,8 @@
 export ANDROID_SDK_ROOT="${ANDROID_SDK_ROOT:-$ANDROID_HOME}"
 
 export PATH="$PATH":./node_modules/.bin
+
+# For cargo + rustup applications, ensure cargo user bin directory is on path
+if [[ ! "$PATH" =~ \.cargo/bin ]]; then
+  export PATH="$PATH":${HOME}/.cargo/bin
+fi