Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
******************** TEST 'MLIR :: Interfaces/LoopLikeInterface/test-block-loop.mlir' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
/builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/llvm/redhat-linux-build/bin/mlir-opt /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/Interfaces/LoopLikeInterface/test-block-loop.mlir --mlir-disable-threading -test-block-is-in-loop 2>&1 | /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/llvm/redhat-linux-build/bin/FileCheck /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/Interfaces/LoopLikeInterface/test-block-loop.mlir
# executed command: /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/llvm/redhat-linux-build/bin/mlir-opt /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/Interfaces/LoopLikeInterface/test-block-loop.mlir --mlir-disable-threading -test-block-is-in-loop
# executed command: /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/llvm/redhat-linux-build/bin/FileCheck /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/Interfaces/LoopLikeInterface/test-block-loop.mlir
# .---command stderr------------
# | /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/Interfaces/LoopLikeInterface/test-block-loop.mlir:9:16: error: CHECK-NEXT: is not on the line after the previous match
# | // CHECK-NEXT: ^bb0:
# |                ^
# | <stdin>:7:1: note: 'next' match was here
# | ^bb0:
# | ^
# | <stdin>:1:32: note: previous match ended here
# | Block is Block is not in a loop
# |                                ^
# | <stdin>:2:1: note: non-matching line after previous match is here
# | not in a loop
# | ^
# | 
# | Input file: <stdin>
# | Check file: /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/Interfaces/LoopLikeInterface/test-block-loop.mlir
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |         1: Block is Block is not in a loop 
# |         2: not in a loop 
# |         3: Block is Block is not in a loop 
# |         4: Block is not in a loop 
# |         5: Block is not in a loop 
# |         6: Block is not in a loop 
# |         7: ^bb0: 
# | next:9     !~~~~  error: match on wrong line
# |         8:  cf.br ^bb1 
# |         9:  
# |        10: Block is in a loop 
# |        11: not in a loop 
# |        12: ^bb1: // 2 preds: ^bb0, ^bb1 
# |         .
# |         .
# |         .
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--


Answer: This shows the output that was gathered for the execution of test 'TEST 'MLIR :: Interfaces/LoopLikeInterface/test-block-loop.mlir' FAILED'. It might contain insights into why the test TEST 'MLIR :: Interfaces/LoopLikeInterface/test-block-loop.mlir' FAILED failed.