feat: implement dummy main program

This doesn't do anything useful. It's mainly a placeholder, but it
lets us run the subplot.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/bin/bumper.rs b/src/bin/bumper.rs
new file mode 100644
index 0000000..081ca86
--- /dev/null
+++ b/src/bin/bumper.rs
@@ -0,0 +1,3 @@
+fn main() {
+    std::process::exit(1);
+}