mobile-install is failing on a python import error

[veganafro]

rules_android version

0.1.1

Bazel version

Build label: 3.7.1-homebrew
Build target: bazel-out/darwin-opt/bin/src/main/java/com/google/devtools/build/lib/bazel/BazelServer_deploy.jar
Build time: Tue Nov 24 20:21:33 2020 (1606249293)
Build timestamp: 1606249293
Build timestamp as int: 1606249293

Operating system and processor architecture

x86_64-apple-darwin19

Problem description

I'm attempting to run bazel mobile-install for an android_binary target. The app is the simple hello world app generated by the single activity app base in Android Studio.

This is the incorrect output I'm seeing:

$ bazel mobile-install //app/src:app_binary --start_app --incremental

INFO: Analyzed target //app/src:app_binary (0 packages loaded, 0 targets configured).
INFO: Found 1 target...
ERROR: /Users/jeremymuhia/development/mono/android/app/src/BUILD:5:15: Installing //app/src:app_binary incrementally failed (Exit 1): incremental_install failed: error executing command bazel-out/darwin-py2-opt-exec-2B5CBBC6/bin/external/bazel_tools/tools/android/incremental_install --output_marker bazel-out/darwin-fastbuild/bin/app/src/app_binary_files/incremental_deploy_marker ... (remaining 10 argument(s) skipped)
Traceback (most recent call last):
  File "/private/var/tmp/_bazel_jeremymuhia/f9dfbeb00953a93e3d2ab5498ee6f23d/execroot/__main__/bazel-out/darwin-py2-opt-exec-2B5CBBC6/bin/external/bazel_tools/tools/android/incremental_install.runfiles/bazel_tools/tools/android/incremental_install.py", line 25, in <module>
    from concurrent import futures
ImportError: No module named concurrent
Target //app/src:app_binary failed to build
Use --verbose_failures to see the command lines of failed build steps.
INFO: Elapsed time: 0.270s, Critical Path: 0.11s
INFO: 3 processes: 3 internal.
FAILED: Build did NOT complete successfully

This seems peculiar because when I build an apk with bazel build //app/src:app_binary and install it manually with adb install bazel-bin/app/src/app_binary.apk, I can see that the app is installed on the device and is without any runtime errors.