chore(beep boop 🤖): Bump uv.lock (main, mcore-main) (2026-04-01)

[svcnvidia-nemo-ci]

🚀 PR to bump uv.lock in main.

🤖 This PR will be merged automatically once CI passes.

Summary by CodeRabbit

• Chores
  • Updated internal build references and third-party dependencies to latest versions.

[svcnvidia-nemo-ci]

/ok to test 0b3890d

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: b7246ea8-a737-42c2-9d01-793d64226e08

📥 Commits

Reviewing files that changed from the base of the PR and between 446baa0 and 0b3890d.

⛔ Files ignored due to path filters (1)

• uv.lock is excluded by !**/*.lock

📒 Files selected for processing (2)

• .main.commit
• 3rdparty/Megatron-LM

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📝 Walkthrough

Walkthrough

The pull request updates the Megatron-LM submodule pointer from commit 3758b54b2bd9d00f0adbe8bf343a0e6bbcd75d1d to 97e36aaba37245e2fa23d4fda0e956ece21e6c9e in both the .main.commit file and the 3rdparty/Megatron-LM submodule reference.

Changes

Cohort / File(s)	Summary
Megatron-LM Submodule Bump .main.commit, 3rdparty/Megatron-LM	Updated Megatron-LM submodule pointer to a new commit version, synchronizing both the tracking file and submodule reference.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• chore(beep boop 🤖): Bump uv.lock (main, mcore-main) (2026-03-29) #3016: Continues the same submodule bump sequence, updating .main.commit from the commit introduced in this PR to a newer version.
• chore(beep boop 🤖): Bump uv.lock (main, mcore-main) (2026-03-24) #2968: Modifies the same files (.main.commit and 3rdparty/Megatron-LM), representing a prior submodule update in the same sequence.
• chore(beep boop 🤖): Bump uv.lock (main) (2026-03-16) #2813: Updates the same .main.commit submodule pointer for Megatron-LM with a different commit hash bump.

Suggested reviewers

• yaoyu-33
• maanug-nv

🚥 Pre-merge checks | ✅ 3 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Title check	⚠️ Warning	The title refers to bumping uv.lock but the actual changes update commit hashes in .main.commit and a Megatron-LM submodule, not the uv.lock file.	Update the title to accurately reflect the actual changes, such as 'chore: Update commit hashes for main and Megatron-LM' or similar.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Test Results For Major Changes	✅ Passed	PR contains only minor routine dependency/submodule updates (1 line each) created by automated bot, not requiring detailed test documentation.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch bump-ci-container-2026-04-01-main-main

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[thomasdhc]

#3092