Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
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Snippet: 
******************** TEST 'MLIR :: IR/pretty-attributes.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/IR/pretty-attributes.mlir -mlir-elide-elementsattrs-if-larger=2 | /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/IR/pretty-attributes.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/IR/pretty-attributes.mlir -mlir-elide-elementsattrs-if-larger=2
# 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/IR/pretty-attributes.mlir
# .---command stderr------------
# | /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/IR/pretty-attributes.mlir:8:11: error: CHECK: expected string not found in input
# | // CHECK: dense_resource<__elided__> : tensor<3xi32>
# |           ^
# | <stdin>:1:1: note: scanning from here
# | module {
# | ^
# | <stdin>:3:38: note: possible intended match here
# |  "test.non_elided_dense_attr"() {foo.dense_attr = dense<[1, 2]> : tensor<2xi32>} : () -> ()
# |                                      ^
# | 
# | Input file: <stdin>
# | Check file: /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/IR/pretty-attributes.mlir
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |            1: module { 
# | check:8'0     X~~~~~~~~ error: no match found
# |            2:  "test.dense_attr"() {foo.dense_attr = dense<[1, 2, 3]> : tensor<3xi32>} : () -> () 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            3:  "test.non_elided_dense_attr"() {foo.dense_attr = dense<[1, 2]> : tensor<2xi32>} : () -> () 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | check:8'1                                          ?                                                       possible intended match
# |            4:  "test.sparse_attr"() {foo.sparse_attr = sparse<[[0, 0, 5]], -2.000000e+00> : vector<1x1x10xf16>} : () -> () 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            5:  "test.dense_splat"() {foo.dense_attr = dense<1> : tensor<3xi32>} : () -> () 
# | check:8'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            6: } 
# | check:8'0     ~~
# |            7:  
# | check:8'0     ~
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

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