opentelemetry-instrument command fails if incompatible instrumentation is found

[owais]

If an instrumentation is installed for a library that is not found in the environment, the instrument command raises the following exception:

❯ opentelemetry-instrument python main.py
Instrumenting of flask failed
Traceback (most recent call last):
  File "/Users/olone/playground/splunk-otel-py/venv/lib/python3.8/site-packages/opentelemetry/instrumentation/auto_instrumentation/sitecustomize.py", line 71, in _load_instrumentors
    conflict = get_dist_dependency_conflicts(entry_point.dist)
  File "/Users/olone/playground/splunk-otel-py/venv/lib/python3.8/site-packages/opentelemetry/instrumentation/dependencies.py", line 33, in get_dist_dependency_conflicts
    return get_dependency_conflicts(deps)
  File "/Users/olone/playground/splunk-otel-py/venv/lib/python3.8/site-packages/opentelemetry/instrumentation/dependencies.py", line 41, in get_dependency_conflicts
    get_distribution(str(dep))
  File "/Users/olone/playground/splunk-otel-py/venv/lib/python3.8/site-packages/pkg_resources/__init__.py", line 482, in get_distribution
    dist = get_provider(dist)
  File "/Users/olone/playground/splunk-otel-py/venv/lib/python3.8/site-packages/pkg_resources/__init__.py", line 358, in get_provider
    return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
IndexError: list index out of range
Failed to auto initialize opentelemetry
Traceback (most recent call last):
  File "/Users/olone/playground/splunk-otel-py/venv/lib/python3.8/site-packages/opentelemetry/instrumentation/auto_instrumentation/sitecustomize.py", line 111, in initialize
    _load_instrumentors(distro)
  File "/Users/olone/playground/splunk-otel-py/venv/lib/python3.8/site-packages/opentelemetry/instrumentation/auto_instrumentation/sitecustomize.py", line 85, in _load_instrumentors
    raise exc
  File "/Users/olone/playground/splunk-otel-py/venv/lib/python3.8/site-packages/opentelemetry/instrumentation/auto_instrumentation/sitecustomize.py", line 71, in _load_instrumentors
    conflict = get_dist_dependency_conflicts(entry_point.dist)
  File "/Users/olone/playground/splunk-otel-py/venv/lib/python3.8/site-packages/opentelemetry/instrumentation/dependencies.py", line 33, in get_dist_dependency_conflicts
    return get_dependency_conflicts(deps)
  File "/Users/olone/playground/splunk-otel-py/venv/lib/python3.8/site-packages/opentelemetry/instrumentation/dependencies.py", line 41, in get_dependency_conflicts
    get_distribution(str(dep))
  File "/Users/olone/playground/splunk-otel-py/venv/lib/python3.8/site-packages/pkg_resources/__init__.py", line 482, in get_distribution
    dist = get_provider(dist)
  File "/Users/olone/playground/splunk-otel-py/venv/lib/python3.8/site-packages/pkg_resources/__init__.py", line 358, in get_provider
    return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
IndexError: list index out of range

bootstrap command does not install any instrumentations for libraries that are not present in the environment so this would only happen if someone manually installed an instrumentation package for a library they're not using. So this is not a deal breaker and doesn't require an immediate hotfix. That said, this IS a bug as the intended behavior of instrument command is to silently ignore such instrumentations.