Set bin/get_calibrations executable

bin/get_calibrations

@@ -6,4 +6,8 @@ detector_benchmarks=https://eicweb.phy.anl.gov/EIC/benchmarks/detector_benchmark
 mkdir -p config
 for i in results/emcal_barrel_calibration.json ; do
   curl --fail -sL ${detector_benchmarks}/${i}?job=deploy_results --output config/$(basename ${i})
+  if [[ "$?" -ne "0" ]] ; then
+    echo "Error: could not retrieve calibrations!"
+    exit 1
+  fi
 done