diff --git a/zero_bin/tools/prove_stdio.sh b/zero_bin/tools/prove_stdio.sh
index 5e4792f4c..8d05bc1cb 100755
--- a/zero_bin/tools/prove_stdio.sh
+++ b/zero_bin/tools/prove_stdio.sh
@@ -31,7 +31,7 @@ export TOKIO_WORKER_THREADS=$num_procs
 
 export RUST_MIN_STACK=33554432
 export RUST_BACKTRACE=full
-export RUST_LOG=info
+export RUST_LOG=trace
 # Script users are running locally, and might benefit from extra perf.
 # See also .cargo/config.toml.
 export RUSTFLAGS='-C target-cpu=native -Zlinker-features=-lld'
@@ -90,7 +90,7 @@ fi
 # proof. This is useful for quickly testing decoding and all of the
 # other non-proving code.
 if [[ $TEST_ONLY == "test_only" ]]; then
-    cargo run --release --features test_only --bin leader -- --runtime in-memory --load-strategy on-demand stdio < $INPUT_FILE &> $TEST_OUT_PATH
+    cargo run --release --features test_only --bin leader -- --runtime in-memory --load-strategy on-demand stdio < $INPUT_FILE
     if grep -q 'All proof witnesses have been generated successfully.' $TEST_OUT_PATH; then
         echo -e "\n\nSuccess - Note this was just a test, not a proof"
         rm $TEST_OUT_PATH