From f3ac628fd4e9ddb36f48c23186488bcef55f5e48 Mon Sep 17 00:00:00 2001
From: Frederick Muriuki Muriithi
Date: Thu, 6 Oct 2022 17:06:22 +0300
Subject: DEBUG: Collect more information on possible failure.

---
 gn3/computations/rust_correlation.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/gn3/computations/rust_correlation.py b/gn3/computations/rust_correlation.py
index 03af997..016f00e 100644
--- a/gn3/computations/rust_correlation.py
+++ b/gn3/computations/rust_correlation.py
@@ -59,7 +59,14 @@ def run_correlation(
         tmp_dir=tmp_dir, tmp_file=tmp_file, method=method, delimiter=delimiter,
         x_vals=trait_vals)
     command_list = [CORRELATION_COMMAND, json_file, TMPDIR]
-    subprocess.run(command_list, check=True)
+    try:
+        subprocess.run(command_list, check=True, capture_output=True)
+    except subprocess.CalledProcessError as cpe:
+        actual_command = (
+            os.readlink(CORRELATION_COMMAND)
+            if os.path.islink(CORRELATION_COMMAND)
+            else CORRELATION_COMMAND)
+        raise Exception(command_list, actual_command, cpe.stdout, cpe)
 
     return parse_correlation_output(output_file, corr_type, top_n)
 
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