hpctoolkit os=ubuntu18.04 : 'NoneType' object has no attribute 'microarchitecture' #15306
Description
UPDATE (alalazo): The issue can be reproduced outside of environments:
$ spack spec hpctoolkit os=ubuntu18.04
Input spec
--------------------------------
hpctoolkit arch=linux-ubuntu18.04-None
Concretized
--------------------------------
==> Error: 'NoneType' object has no attribute 'microarchitecture'and is related to concretization.
Using Docker image spack/ubuntu-bionic for x86_64 and Spack develop @ fddb3f2 .
Place the attached Spack environment file into a directory by itself. Rename it to spack.yaml and then run the following sequence of commands in the directory where the spack.yaml is in order to reproduce the issue:
Step 1
$> spack install patchelf
... install succeeds
Step 2
$> spack install
==> Error: 'NoneType' object has no attribute 'microarchitecture'
Full stack trace from Step 2:
Traceback (most recent call last):
File "/root/spack/bin/spack", line 64, in <module>
sys.exit(spack.main.main())
File "/root/spack/lib/spack/spack/main.py", line 763, in main
return _invoke_command(command, parser, args, unknown)
File "/root/spack/lib/spack/spack/main.py", line 488, in _invoke_command
return_val = command(parser, args)
File "/root/spack/lib/spack/spack/cmd/install.py", line 273, in install
concretized_specs = env.concretize()
File "/root/spack/lib/spack/spack/environment.py", line 948, in concretize
return self._concretize_separately()
File "/root/spack/lib/spack/spack/environment.py", line 1016, in _concretize_separately
concrete = _concretize_from_constraints(uspec_constraints)
File "/root/spack/lib/spack/spack/environment.py", line 1554, in _concretize_from_constraints
return s.concretized()
File "/root/spack/lib/spack/spack/spec.py", line 2298, in concretized
clone.concretize()
File "/root/spack/lib/spack/spack/spec.py", line 2148, in concretize
user_spec_deps=user_spec_deps),
File "/root/spack/lib/spack/spack/spec.py", line 2626, in normalize
visited, all_spec_deps, provider_index, tests)
File "/root/spack/lib/spack/spack/spec.py", line 2552, in _normalize_helper
dep = self._evaluate_dependency_conditions(dep_name)
File "/root/spack/lib/spack/spack/spec.py", line 2375, in _evaluate_dependency_conditions
if self.satisfies(when_spec, strict=True):
File "/root/spack/lib/spack/spack/spec.py", line 2879, in satisfies
if not self.architecture.satisfies(other.architecture, strict):
File "/root/spack/lib/spack/spack/spec.py", line 360, in satisfies
return self._satisfies_target(other.target, strict=strict)
File "/root/spack/lib/spack/spack/spec.py", line 383, in _satisfies_target
min_ok = self_target.microarchitecture >= t_min if t_min else True
AttributeError: 'NoneType' object has no attribute 'microarchitecture'
CC @gartung