Coverity has detected violations of the "Rule of three" at various points in cppsuite.

Compiler generated special functions may behave incorrectly if the class requires a user-definition for any of its special functions. This class has user-definitions for at least one but not all of its special functions (copy constructor, copy assignment operator, destructor). If one of these functions requires a user-definition then it is likely all of them should have a definition.

Here are all the coverity occurrences:

Coverity CID:      code location:
138767             test/cppsuite/src/common/random_generator.h:47
138867             test/cppsuite/src/common/thread_manager.h:36
138901             test/cppsuite/src/component/metrics_monitor.h:47
138974             test/cppsuite/src/component/metrics_writer.h::38
138926             test/cppsuite/src/main/collection.h:37
138892             test/cppsuite/src/main/configuration.h:58
138803             test/cppsuite/src/util/barrier.h:43
138955             test/cppsuite/src/util/execution_timer.h:39

/test/cppsuite/src/common/random_generator.h:47: RULE_OF_ZERO_THREE_FIVE 138767 Class "test_harness::random_generator" has a user definition for at least one special function (copy constructor, copy assignment, destructor) but not all. If one of these functions requires a user definition then the others likely do as well.
/test/cppsuite/src/common/random_generator.h:52: RULE_OF_ZERO_THREE_FIVE 138767 User-defined copy constructor.
/test/cppsuite/src/common/random_generator.h:53: RULE_OF_ZERO_THREE_FIVE 138767 User-defined copy assignment operator.