rust-lang/rustlings

Public scan — anyone with this URL can view this analysis. Sign up to track your own repos privately, run scheduled re-scans, and get AI fix prompts via your dashboard.

27 of your 57 findings came from Repobility's proprietary detections. ✓ Repobility tags below mark them.

Scan timing: clone 1.37s · analysis 4.72s · 0.6 MB · GitHub API rate-limit (preflight)

https://github.com/rust-lang/rustlings · scanned 2026-06-05 09:10 UTC (5 days, 17 hours ago) · 10 languages

70 raw signals (54 security + 16 graph) 67th percentile · Rust · small (2-20K LoC) System graph score 92 (lower by 23)

File as issue Image

UNIFIED Repobility · multi-layer engine · AI coders

Complete repo analysis

Last scanned 5 days, 17 hours ago · v2 · 14 actionable findings from 2 signal sources. 48 repeated signals grouped for readability. Security checks, system graph analysis, and verified AI-agent feedback are merged into one review queue.

JSON

66.7% cov · 6 findings

Score breakdown â 2026-05-18-v5

Component	Sub-score	Weight	Contribution
`structure_score`	85.0	0.15	12.75
`security_score`	100.0	0.25	25.00
`testing_score`	20.0	0.20	4.00
`documentation_score`	65.0	0.15	9.75
`practices_score`	77.0	0.15	11.55
`code_quality`	60.7	0.10	6.07
Overall		1.00	69.1

Severity distribution — click a segment to filter

Active filters: excluding tests × Reset all

Severity: Critical 0 High 0 Medium 4 Low 3 9-Layer: Software Security Quality Integrity Frontend Hardware Data Network Cicd Source: Security checks 8 System graph 6 Crowd 0 Layer: Quality 8 Cicd 3 Api 1 Frontend 1 Security 1

Exclude dismissed / FP Exclude test files

Scan summary Quality grade B- (69/100). Dimensions: security 100, maintainability 85. 54 findings (13 security). 11,700 lines analyzed.

Showing 7 of 14 actionable findings. 62 raw detector signals were grouped into reader-sized issues. Click TP / FP to vote on a finding's accuracy — votes adjust the confidence weighting and improve detection across the platform.

medium Security checks cicd CI/CD security conf 0.90 ✓ Repobility 4 occurrences GitHub Action is tag-pinned rather than SHA-pinned

Action `swatinem/rust-cache` pinned to mutable ref `@v2` uses a mutable tag or branch. Pin external actions to a reviewed full commit SHA when the workflow is security-sensitive.

2 files, 4 locations

.github/workflows/rust.yml:40, 49, 56 (3 hits)

.github/workflows/website.yml:16

CI/CD securitySupply chainGitHub Actions

low Security checks cicd CI/CD security conf 0.90 ✓ Repobility 11 occurrences GitHub Action is tag-pinned rather than SHA-pinned

Action `actions/checkout` pinned to mutable ref `@v6` uses a mutable tag or branch. Pin external actions to a reviewed full commit SHA when the workflow is security-sensitive.

2 files, 11 locations

.github/workflows/website.yml:15, 24, 34, 50 (6 hits)

.github/workflows/rust.yml:24, 30, 39, 48, 55 (5 hits)

CI/CD securitySupply chainGitHub Actions

medium System graph cicd CI/CD security conf 1.00 GitHub Actions workflow grants broad write permissions

CI tokens with write permissions increase blast radius when an action, dependency, or PR workflow is compromised. Prefer job-level least-privilege permissions.

.github/workflows/website.yml CI/CD securitySupply chainGithub actions

medium System graph security Coverage conf 1.00 No auth library detected

The scanner did not find any standard auth library (JWT, OAuth, NextAuth, Auth0, etc.). Either auth lives in custom code, in a separate service, or is missing.

auth

medium System graph quality Tests conf 1.00 Very low test-to-source ratio

12 test file(s) for 208 source file(s) (ratio 0.06). Consider adding integration or unit tests for critical paths.

Coverage

low Security checks quality Quality conf 0.60 30 occurrences Duplicated implementation block across source files

Duplicate implementation blocks are maintenance debt. Keep them visible, but they are not a high-severity defect unless the duplicated logic is security-sensitive or drifting.

12 files, 12 locations

solutions/03_if/if1.rs:3

solutions/03_if/if2.rs:9

solutions/03_if/if3.rs:10

solutions/05_vecs/vecs1.rs:3

solutions/05_vecs/vecs2.rs:5

solutions/06_move_semantics/move_semantics1.rs:3

solutions/06_move_semantics/move_semantics3.rs:2

solutions/07_structs/structs2.rs:1

duplicationquality

low System graph quality Maintenance conf 1.00 136 TODO/FIXME markers

High count of TODO/FIXME/HACK markers — track them as issues so they're not forgotten.

For AI agents: Voting guide (TP/FP) MCP manifest Stdio wrapper SARIF Integrate Findings queue Vote TP/FP on findings to calibrate the engine.

For AI agents + API integrations

Email me when this repo regresses

Free. We re-scan periodically; new criticals → your inbox. No signup required for the scan itself.

API access

This page is publicly accessible at: https://repobility.com/scan/ffd4e990-d761-4de8-b2f8-4bc6ab97aee4/

To check status programmatically (no auth required):

curl -s https://repobility.com/api/v1/public/scan/ffd4e990-d761-4de8-b2f8-4bc6ab97aee4/

Important — please don't re-submit the same URL repeatedly. The submission endpoint is idempotent: re-submitting the same git URL returns this same scan_token, not a new one. To re-scan this repo, sign up free and use the dashboard.