[STF] Avoid warning about unsed variable

[miscco]

This is failing in the nightlies

[github-actions]

🟩 CI finished in 35m 53s: Pass: 100%/32 | Total: 7h 40m | Avg: 14m 22s | Max: 29m 54s | Hits: 69%/15390

• 🟩 cudax: Pass: 100%/28 | Total: 7h 26m | Avg: 15m 56s | Max: 29m 54s | Hits: 69%/15390

  🟩 cpu
    🟩 amd64              Pass: 100%/24  | Total:  6h 27m | Avg: 16m 08s | Max: 29m 54s | Hits:  70%/13018 
    🟩 arm64              Pass: 100%/4   | Total: 59m 18s | Avg: 14m 49s | Max: 16m 27s | Hits:  63%/2372  
  🟩 ctk
    🟩 12.0               Pass: 100%/3   | Total: 40m 09s | Avg: 13m 23s | Max: 14m 23s | Hits:  69%/1474  
    🟩 12.9               Pass: 100%/25  | Total:  6h 46m | Avg: 16m 15s | Max: 29m 54s | Hits:  69%/13916 
  🟩 cudacxx
    🟩 nvcc12.0           Pass: 100%/3   | Total: 40m 09s | Avg: 13m 23s | Max: 14m 23s | Hits:  69%/1474  
    🟩 nvcc12.9           Pass: 100%/25  | Total:  6h 46m | Avg: 16m 15s | Max: 29m 54s | Hits:  69%/13916 
  🟩 cudacxx_family
    🟩 nvcc               Pass: 100%/28  | Total:  7h 26m | Avg: 15m 56s | Max: 29m 54s | Hits:  69%/15390 
  🟩 cxx
    🟩 Clang14            Pass: 100%/2   | Total: 27m 57s | Avg: 13m 58s | Max: 15m 10s | Hits:  63%/1188  
    🟩 Clang15            Pass: 100%/1   | Total: 15m 57s | Avg: 15m 57s | Max: 15m 57s | Hits:  63%/593   
    🟩 Clang16            Pass: 100%/1   | Total: 15m 45s | Avg: 15m 45s | Max: 15m 45s | Hits:  63%/593   
    🟩 Clang17            Pass: 100%/1   | Total: 16m 54s | Avg: 16m 54s | Max: 16m 54s | Hits:  63%/593   
    🟩 Clang18            Pass: 100%/1   | Total: 16m 49s | Avg: 16m 49s | Max: 16m 49s | Hits:  63%/593   
    🟩 Clang19            Pass: 100%/4   | Total: 54m 24s | Avg: 13m 36s | Max: 17m 23s | Hits:  72%/2372  
    🟩 GCC10              Pass: 100%/2   | Total: 32m 30s | Avg: 16m 15s | Max: 18m 07s | Hits:  58%/1188  
    🟩 GCC11              Pass: 100%/1   | Total: 17m 26s | Avg: 17m 26s | Max: 17m 26s | Hits:  63%/593   
    🟩 GCC12              Pass: 100%/1   | Total: 20m 23s | Avg: 20m 23s | Max: 20m 23s | Hits:  63%/593   
    🟩 GCC13              Pass: 100%/8   | Total:  1h 58m | Avg: 14m 46s | Max: 18m 12s | Hits:  71%/4744  
    🟩 MSVC14.39          Pass: 100%/1   | Total: 12m 59s | Avg: 12m 59s | Max: 12m 59s | Hits:  95%/288   
    🟩 MSVC14.43          Pass: 100%/3   | Total: 39m 02s | Avg: 13m 00s | Max: 13m 31s | Hits:  95%/870   
    🟩 NVHPC25.5          Pass: 100%/2   | Total: 58m 15s | Avg: 29m 07s | Max: 29m 54s | Hits:  60%/1182  
  🟩 cxx_family
    🟩 Clang              Pass: 100%/10  | Total:  2h 27m | Avg: 14m 46s | Max: 17m 23s | Hits:  67%/5932  
    🟩 GCC                Pass: 100%/12  | Total:  3h 08m | Avg: 15m 42s | Max: 20m 23s | Hits:  67%/7118  
    🟩 MSVC               Pass: 100%/4   | Total: 52m 01s | Avg: 13m 00s | Max: 13m 31s | Hits:  95%/1158  
    🟩 NVHPC              Pass: 100%/2   | Total: 58m 15s | Avg: 29m 07s | Max: 29m 54s | Hits:  60%/1182  
  🟩 gpu
    🟩 h100               Pass: 100%/2   | Total: 21m 22s | Avg: 10m 41s | Max: 13m 01s | Hits:  81%/1186  
    🟩 rtx2080            Pass: 100%/26  | Total:  7h 05m | Avg: 16m 21s | Max: 29m 54s | Hits:  68%/14204 
  🟩 jobs
    🟩 Build              Pass: 100%/25  | Total:  6h 52m | Avg: 16m 29s | Max: 29m 54s | Hits:  65%/13611 
    🟩 Test               Pass: 100%/3   | Total: 34m 18s | Avg: 11m 26s | Max: 16m 55s | Hits:  96%/1779  
  🟩 sm
    🟩 90                 Pass: 100%/2   | Total: 21m 22s | Avg: 10m 41s | Max: 13m 01s | Hits:  81%/1186  
    🟩 90;90a             Pass: 100%/2   | Total: 26m 56s | Avg: 13m 28s | Max: 14m 33s | Hits:  74%/883   
    🟩 100;120            Pass: 100%/2   | Total: 29m 20s | Avg: 14m 40s | Max: 15m 49s | Hits:  74%/883   
  🟩 std
    🟩 17                 Pass: 100%/3   | Total: 56m 39s | Avg: 18m 53s | Max: 28m 21s | Hits:  62%/1777  
    🟩 20                 Pass: 100%/25  | Total:  6h 29m | Avg: 15m 35s | Max: 29m 54s | Hits:  70%/13613 
  

• 🟩 packaging: Pass: 100%/4 | Total: 13m 36s | Avg: 3m 24s | Max: 3m 38s

  🟩 cpu
    🟩 amd64              Pass: 100%/4   | Total: 13m 36s | Avg:  3m 24s | Max:  3m 38s
  🟩 ctk
    🟩 12.0               Pass: 100%/2   | Total:  6m 30s | Avg:  3m 15s | Max:  3m 28s
    🟩 12.9               Pass: 100%/2   | Total:  7m 06s | Avg:  3m 33s | Max:  3m 38s
  🟩 cudacxx
    🟩 nvcc12.0           Pass: 100%/2   | Total:  6m 30s | Avg:  3m 15s | Max:  3m 28s
    🟩 nvcc12.9           Pass: 100%/2   | Total:  7m 06s | Avg:  3m 33s | Max:  3m 38s
  🟩 cudacxx_family
    🟩 nvcc               Pass: 100%/4   | Total: 13m 36s | Avg:  3m 24s | Max:  3m 38s
  🟩 cxx
    🟩 Clang14            Pass: 100%/1   | Total:  3m 02s | Avg:  3m 02s | Max:  3m 02s
    🟩 Clang19            Pass: 100%/1   | Total:  3m 38s | Avg:  3m 38s | Max:  3m 38s
    🟩 GCC12              Pass: 100%/1   | Total:  3m 28s | Avg:  3m 28s | Max:  3m 28s
    🟩 GCC13              Pass: 100%/1   | Total:  3m 28s | Avg:  3m 28s | Max:  3m 28s
  🟩 cxx_family
    🟩 Clang              Pass: 100%/2   | Total:  6m 40s | Avg:  3m 20s | Max:  3m 38s
    🟩 GCC                Pass: 100%/2   | Total:  6m 56s | Avg:  3m 28s | Max:  3m 28s
  🟩 gpu
    🟩 rtx2080            Pass: 100%/4   | Total: 13m 36s | Avg:  3m 24s | Max:  3m 38s
  🟩 jobs
    🟩 Test               Pass: 100%/4   | Total: 13m 36s | Avg:  3m 24s | Max:  3m 38s
  

👃 Inspect Changes

Modifications in project?

	Project
	CCCL Infrastructure
	CCCL Packaging
	libcu++
	CUB
	Thrust
+/-	CUDA Experimental
	stdpar
	python
	CCCL C Parallel Library
	Catch2Helper

Modifications in project or dependencies?

	Project
	CCCL Infrastructure
+/-	CCCL Packaging
	libcu++
	CUB
	Thrust
+/-	CUDA Experimental
	stdpar
	python
	CCCL C Parallel Library
	Catch2Helper

🏃‍ Runner counts (total jobs: 32)

#	Runner
17	linux-amd64-cpu16
6	linux-amd64-gpu-rtx2080-latest-1
4	linux-arm64-cpu16
4	windows-amd64-cpu16
1	linux-amd64-gpu-h100-latest-1