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 :: IR/parser.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 -allow-unregistered-dialect /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/IR/parser.mlir | /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/parser.mlir
# executed command: /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/llvm/redhat-linux-build/bin/mlir-opt -allow-unregistered-dialect /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/IR/parser.mlir
# 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/parser.mlir
# RUN: at line 2
/builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/llvm/redhat-linux-build/bin/mlir-opt -allow-unregistered-dialect /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/IR/parser.mlir | /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/llvm/redhat-linux-build/bin/mlir-opt -allow-unregistered-dialect | /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/parser.mlir
# executed command: /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/llvm/redhat-linux-build/bin/mlir-opt -allow-unregistered-dialect /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/IR/parser.mlir
# executed command: /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/llvm/redhat-linux-build/bin/mlir-opt -allow-unregistered-dialect
# 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/parser.mlir
# RUN: at line 3
/builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/llvm/redhat-linux-build/bin/mlir-opt -allow-unregistered-dialect -mlir-print-op-generic /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/IR/parser.mlir | /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/parser.mlir -check-prefix GENERIC
# executed command: /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/llvm/redhat-linux-build/bin/mlir-opt -allow-unregistered-dialect -mlir-print-op-generic /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/IR/parser.mlir
# 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/parser.mlir -check-prefix GENERIC
# .---command stderr------------
# | /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/IR/parser.mlir:1164:14: error: GENERIC: expected string not found in input
# |  // GENERIC: "test.polyfor"() ({
# |              ^
# | <stdin>:545:32: note: scanning from here
# |  func.func @op_with_region_args() {
# |                                ^
# | <stdin>:546:2: note: possible intended match here
# |  test.polyfor %arg0, %arg1, %arg2 {
# |  ^
# | /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/IR/parser.mlir:1230:14: error: GENERIC: expected string not found in input
# |  // GENERIC: "test.parse_b64"() <{b64 = "hello world"}>
# |              ^
# | <stdin>:576:30: note: scanning from here
# |  func.func @parse_base64_test() {
# |                              ^
# | <stdin>:577:2: note: possible intended match here
# |  test.parse_b64 "aGVsbG8gd29ybGQ="
# |  ^
# | 
# | Input file: <stdin>
# | Check file: /builddir/build/BUILD/llvm-21.0.0_pre20250610.g17999f01bbcda4-build/llvm-project-17999f01bbcda4ccdf5146cbecc562c60b2ca86e/mlir/test/IR/parser.mlir
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |               .
# |               .
# |               .
# |             540:  "foo"() {bar = dense<0xFFFFFFFF> : tensor<4x4xf32>} : () -> () 
# |             541:  "foo"() {bar = dense<[[0xFFFFFFFF, 0x7F800000], [0x7FBFFFFF, 0x7F800001]]> : tensor<2x2xf32>} : () -> () 
# |             542:  "foo"() {bar = dense<[0xFFFFFFFF, 0.000000e+00]> : tensor<2xf32>} : () -> () 
# |             543:  "foo"() {bar = sparse<[[1, 1, 0], [0, 1, 1]], [0xFFFFFFFF, 0x7F800001]> : tensor<2x2x2xf32>} : () -> () 
# |             544:  } 
# |             545:  func.func @op_with_region_args() { 
# | check:1164'0                                    X~~~~ error: no match found
# |             546:  test.polyfor %arg0, %arg1, %arg2 { 
# | check:1164'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | check:1164'1      ?                                   possible intended match
# |             547:  "foo"() : () -> () 
# | check:1164'0     ~~~~~~~~~~~~~~~~~~~~
# |             548:  } 
# | check:1164'0     ~~~
# |             549:  return 
# | check:1164'0     ~~~~~~~~
# |             550:  } 
# | check:1164'0     ~~~
# |             551:  func.func @custom_name_api() { 
# | check:1164'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |               .
# |               .
# |               .
# |             571:  } 
# | check:1164'0     ~~~
# |             572:  func.func @parse_wrapped_keyword_test() { 
# | check:1164'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             573:  test.parse_wrapped_keyword foo.keyword 
# | check:1164'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             574:  return 
# | check:1164'0     ~~~~~~~~
# |             575:  } 
# | check:1164'0     ~~~
# |             576:  func.func @parse_base64_test() { 
# | check:1164'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | check:1230'0                                  X~~~~ error: no match found
# |             577:  test.parse_b64 "aGVsbG8gd29ybGQ=" 
# | check:1230'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | check:1230'1      ?                                  possible intended match
# |             578:  return 
# | check:1230'0     ~~~~~~~~
# |             579:  } 
# | check:1230'0     ~~~
# |             580:  func.func @parse_slash_test() { 
# | check:1230'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             581:  "test.slash_attr"() <{attr = #test.slash_attr<1 / 2>}> : () -> () 
# | check:1230'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             582:  return 
# | check:1230'0     ~~~~~~~~
# |               .
# |               .
# |               .
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--


Answer: Here you see the test results for "%s" that were failing and their standard and error output