fix: extra markers

[xangcastle]

---

Changes are visible to end-users: yes/no

• Searched for relevant documentation and updated as needed: yes/no
• Breaking change (forces users to change their own code or config): yes/no
• Suggested release notes appear below: yes/no

Test plan

• Covered by existing test cases
• New test cases added
• Manual testing; please provide instructions so we can reproduce:

[aspect-workflows]

✨ Aspect Workflows Tasks

📅 Wed Jul 8 03:48:25 UTC 2026

❌ 2 failed tasks

• ❌ test-e2e-bazel-8 [test] · ⏱ 3m 36s · 🐙 GitHub Actions · ☑️ Check
  💬 failed in test · Bazel test failed (1 test failed)
• ❌ test-e2e-bazel-9 [test] · ⏱ 4m 17s · 🐙 GitHub Actions · ☑️ Check
  💬 failed in test · Bazel test failed (1 test failed)

✅ 34 successful tasks

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• ✅ test-e2e-interpreter-input-validation-bazel-9 [test] · ⏱ 44.3s · 🐙 GitHub Actions · ☑️ Check
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• ✅ test-e2e-interpreter-runtime-metadata-bazel-8 [test] · ⏱ 27.1s · 🐙 GitHub Actions · ☑️ Check
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• ✅ test-e2e-interpreter-toolchain-settings-bazel-9 [test] · ⏱ 1m 27s · 🐙 GitHub Actions · ☑️ Check
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• ✅ test-e2e-rules-proto-grpc-python-bazel-9 [test] · ⏱ 1m 40s · 🐙 GitHub Actions · ☑️ Check
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• ✅ test-examples-dev_deps-bazel-9 [test] · ⏱ 56.4s · 🐙 GitHub Actions · ☑️ Check
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• ✅ test-examples-protobuf-bazel-9 [test] · ⏱ 2m 24s · 🐙 GitHub Actions · ☑️ Check
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• ✅ test-examples-py_binary-bazel-8 [test] · ⏱ 21.8s · 🐙 GitHub Actions · ☑️ Check
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• ✅ test-examples-py_binary-bazel-9 [test] · ⏱ 40.2s · 🐙 GitHub Actions · ☑️ Check
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• ✅ test-examples-py_venv-bazel-9 [test] · ⏱ 39.8s · 🐙 GitHub Actions · ☑️ Check
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• ✅ test-examples-uv_pip_compile-bazel-9 [test] · ⏱ 43.5s · 🐙 GitHub Actions · ☑️ Check
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• ✅ test-examples-virtual_deps-bazel-9 [test] · ⏱ 48.6s · 🐙 GitHub Actions · ☑️ Check
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❌ Test Failures

❌ py_venv_exec_test //uv-extra-marker:extra_marker failed in 110ms:

exec ${PAGER:-/usr/bin/less} "$0" || exit 1
Executing tests from //uv-extra-marker:extra_marker
-----------------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/runner/.cache/bazel/_bazel_runner/bc392e71f7970e3c2154593992262559/sandbox/linux-sandbox/524/execroot/_main/bazel-out/k8-fastbuild/bin/uv-extra-marker/extra_marker.runfiles/_main/uv-extra-marker/__test__.py", line 10, in <module>
    import colorama
ModuleNotFoundError: No module named 'colorama'

_{in task test-e2e-bazel-8}

Reproduce with:

cd e2e/cases
aspect test -- //uv-extra-marker:extra_marker

# vanilla bazel
cd e2e/cases
bazel test -- //uv-extra-marker:extra_marker

❌ py_venv_exec_test //uv-extra-marker:extra_marker failed in 66ms:

exec ${PAGER:-/usr/bin/less} "$0" || exit 1
Executing tests from //uv-extra-marker:extra_marker
-----------------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/runner/.cache/bazel/_bazel_runner/bc392e71f7970e3c2154593992262559/sandbox/linux-sandbox/360/execroot/_main/bazel-out/k8-fastbuild/bin/uv-extra-marker/extra_marker.runfiles/_main/uv-extra-marker/__test__.py", line 10, in <module>
    import colorama
ModuleNotFoundError: No module named 'colorama'

_{in task test-e2e-bazel-9}

Reproduce with:

cd e2e/cases
aspect test -- //uv-extra-marker:extra_marker

# vanilla bazel
cd e2e/cases
bazel test -- //uv-extra-marker:extra_marker

🔁 Reproduce

❌ test (test-e2e-bazel-8 · test-e2e-bazel-9)

cd e2e/cases
aspect test -- //uv-extra-marker:extra_marker

# vanilla bazel
cd e2e/cases
bazel test -- //uv-extra-marker:extra_marker

_{Install aspect: aspect.build/docs/cli/install}

---

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[github-actions]

py_binary startup benchmark

Version	Mean (ms)	Median (ms)	± stddev	vs BCR	vs main	Build (s)
BCR 1.11.7 (baseline)	150.645	144.797	±13.871	—	—	21.99
HEAD main	45.484	45.393	±0.418	-69.8%	—	7.72
This PR	46.267	45.606	±2.978	-69.3%	+1.7%	5.61

Measured with hyperfine --warmup 5 --runs 50 on Linux
Gate: PR vs HEAD main (threshold: 10%). BCR is shown only as a historical baseline.
Build time: cold bazel build //:bench with isolated output base, no disk cache.

sys.path quality

Version	sys.path entries	distinct site-packages roots	duplicate realpaths
BCR 1.11.7 (baseline)	6	1	0
HEAD main	7	2	0
This PR	7	2	0

sys.path quality measured by bench_syspath inside the assembled venv. Duplicate realpaths indicate symlink redundancy; many distinct site-packages roots suggest an inefficient venv layout.

Bazel analysis benchmark

Version	Mean (ms)	Median (ms)	± stddev	vs BCR	vs main	Packages	Targets
BCR 2.0.0-alpha.4 (baseline)	11404.729	11426.024	±136.839	—	—	101	301
HEAD main	10311.823	10310.792	±182.420	-9.6%	—	101	301
This PR	10260.721	10223.170	±139.116	-10.0%	-0.5%	101	301

Measured with hyperfine --warmup 1 --runs 10 on Linux
Gate: PR vs HEAD main (threshold: 10%). BCR is shown only as a historical baseline.
Command: cold bazel build --nobuild //workspace/... with isolated output base, no disk cache.

Auxiliary metrics

Version	Loaded packages	Configured targets
BCR 2.0.0-alpha.4 (baseline)	101	301
HEAD main	101	301
This PR	101	301