Public record
Software health reportschema 0.31.0 · metrics 2.5.0 · 2026-08-04 20:15 UTC

tokio-rs / tracing

Application level tracing for Rust.

RustMIT★ 6,818 stars⑂ 916 forkssince Jan 2019View on GitHub ↗
KindLibraryNetwork servicehow this is determined

tokio-rs/tracing holds a health index of 83 out of 100, placing it in the Excellent band. It scores highest on Community & Adoption (90/100) and lowest on AI Readiness (51/100). It was last updated 66 days ago. A single contributor accounts for most of its recent work.

83
overall / 100
Excellent

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

83
Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met
Excellent80-92Strong across the board; minor gaps
Good65-79Healthy; gaps are limited and manageable
Moderate50-64Acceptable with notable gaps; review recommended
Weak35-49Material weaknesses across several areas
At Risk20-34Significant weaknesses; adoption warrants caution
Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 70 is calibrated to 83 on the published index scale (record calibration 2026-08-02).

Ownership

TokioOrganization
3,017 followers48 public repossince Jul 2016

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publishTags
crates.iotracing0.1.4456,999,10846229 days agoasyncloggingmetricstracingasynchronousno-std
crates.iotracing-log0.2.038,050,19191014 days agologtracingloggingasynchronous
crates.iotracing-core0.1.3657,280,63938229 days agologgingprofilingtracingasynchronous
crates.iotracing-mock0.1.0-beta.3166,3253249 days agomocktestingtracing
crates.iotracing-testpoints to another repo — not scored0.2.62,725,3968177 days ago
crates.iotracing-error0.2.13,280,7365613 days agobacktraceerror-handlingexception-reportingtracingrust-patterns
crates.iotracing-flame0.2.0487,29521691 days agotracingsubscriberflamegraphprofilingasynchronous
crates.iotracing-serde0.2.018,817,1166614 days agologgingserializationtracingasynchronousencoding

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

64Moderate · 21% of overall
How it's scored
18/36Push recency — last push 66 days ago
11.1/36Commit cadence — 16/52 weeks with commits
16.2/18Commit volume — 62 commits in the last year
2/10OpenSSF Scorecard: Maintained — 1 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 2
Inputs used
commits_last_year62
human_commit_share1
days_since_last_push66
active_weeks_last_year16
How it's scored
27/27Ships releases — 100 releases published
27/36Release recency — latest release 109 days ago
27/27Release cadence — a release every ~15.8 days
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count100
latest_release_tagtracing-appender-0.2.5
releases_from_tagsno
days_since_latest_release109
mean_days_between_releases15.8
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

90Excellent · 17% of overall
How it's scored
60/60Stars — 6,818 stars
24.7/25Forks — 916 forks
9.5/15Watchers — 52 watchers
Inputs used
forks916
stars6,818
watchers52
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (MIT)
18/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
6.3/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges0
has_contributingyes
has_issue_templateno
has_code_of_conductno
readme_badge_services
has_pull_request_templateyes
How it's scored
80/80Monthly downloads — 175,081,410 downloads/month across crates
0/20Registry dependents — not reported by this ecosystem
Inputs used
packagestracing, tracing-log, tracing-core, tracing-mock, tracing-error, tracing-flame, tracing-serde
dependents
ecosystemscrates
total_downloads2,294,133,663
monthly_downloads175,081,410
Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

68Good · 23% of overall
How it's scored
9/54Bus factor — 1 contributor(s) cover half of all commits
9/22.5Commit distribution — top contributor authored 60% of commits
13.5/13.5Contributor breadth — 98 contributors
10/10OpenSSF Scorecard: Contributors — project has 71 contributing companies or organizations
Inputs used
bus_factor1
contributors_sampled98
top_contributor_share0.598
How it's scored
20.4/42Issue resolution — 48% of issues closed
24.9/30PR acceptance — 1,574/1,893 decided PRs merged
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
15/15OpenSSF Scorecard: Code-Review — all changesets reviewed
Inputs used
merged_prs1,574
open_issues633
closed_issues596
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio0.485
closed_unmerged_prs319
first_time_authors_30d0
first_time_prs_merged_30d0
first_time_prs_decided_30d0
Excluded from scoring (no data or not applicable): newcomer_pr_acceptance. Remaining weights renormalized.
How it's scored
30/30Ownership backing — organization-owned
0/20Verified domain
25/25Owner reach — 3,017 followers of tokio-rs
24.3/25Track record — 48 public repos, account ~10 yr old
Inputs used
followers3,017
owner_typeOrganization
is_verified
owner_logintokio-rs
public_repos48
account_age_days3,685
How it's scored
25/25Published & resolvable — 7 package(s) on crates
26/35Publish recency — latest publish 229 days ago
20/20Version history — 46 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packagestracing, tracing-log, tracing-core, tracing-mock, tracing-error, tracing-flame, tracing-serde
ecosystemscrates
any_deprecatedno
min_days_since_publish229

Engineering Quality

Are baseline engineering and documentation practices in place?

66Good · 19% of overall
How it's scored
24/24CI workflows — 3 workflow(s)
24/24Tests present
0/16Linter config
0/9.6Pre-commit hooks
0/6.4.editorconfig
18/20OpenSSF Scorecard: CI-Tests — 27 out of 30 merged PRs checked by a CI test -- score normalized to 9
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configno
has_precommit_configno
How it's scored
30/30README
0/25Documentation directory
15/15Documentation / homepage site — https://tracing.rs
10/10Repository description
10/10Topics — 8 topics
0/10Wiki
Inputs used
topicsrust, rust-lang, tracing, logging, logging-library, logging-facade, logging-and-metrics, diagnostics
has_wikino
homepagehttps://tracing.rs
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

68Good · 16% of overall
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — no data
2.2/2.5CI-Tests — 27 out of 30 merged PRs checked by a CI test -- score normalized to 9
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
7.5/7.5Code-Review — all changesets reviewed
2.5/2.5Contributors — project has 71 contributing companies or organizations
10/10Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
1.5/7.5Maintained — 1 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 2
0/5Packaging — no data
0/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
4.5/5Security-Policy — security policy file detected
0/7.5Signed-Releases — no data
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
7.5/7.5Vulnerabilities — 0 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated15
scorecard_versionv5.5.0
checks_inconclusive3
scorecard_aggregate6.3
Excluded from scoring (no data or not applicable): branch_protection, packaging, signed_releases. Remaining weights renormalized.
How it's scored
35/35Direct dependencies free of known advisories — no direct dependency carries a known advisory
18.5/25Indirect dependencies free of known advisories — 2 affected: atty 0.2.14 (low), serde_cbor 0.11.2 (unknown)
36.4/40No advisories left outstanding — 2 advisory-carrying package(s) unaddressed past 90 days; oldest published 1,857 days ago
Inputs used
sourceosv
advisories4
affected_packages2
assessed_packages79
unassessed_packages0
affected_by_severitylow 1, unknown 1
direct_affected_packages0
Matched the crates:tracing@0.1.44 runtime dependency closure — what installing the published package pulls in — 79 packages. Reachability is not analyzed.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

51Moderate · 4% of overall
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15Machine-readable docs (llms.txt)
40/40Legible commit history — 98 of 100 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtno
legible_history_share0.98
agent_instruction_files
agent_instruction_max_bytes
How it's scored
12.6/18One-command bootstrap — Cargo.toml, examples/Cargo.toml, tracing-appender/Cargo.toml (toolchain convention, no task runner)
22/22Automated tests
0/11Lint / format config
11/11Static type checking — Rust (statically typed)
0/10Reproducible environment
0/10Demonstrated agent practice — no agent-authored commits among the last 100
0/8Automated maintenance — no automated dependency updates observed
0/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfiles
has_dockerfileno
typed_languageyes
bootstrap_files
has_devcontainerno
has_linter_configno
typecheck_configs
agent_commit_share0
toolchain_manifestsCargo.toml, examples/Cargo.toml, tracing-appender/Cargo.toml, tracing-attributes/Cargo.toml, tracing-core/Cargo.toml, tracing-error/Cargo.toml, tracing-flame/Cargo.toml, tracing-futures/Cargo.toml, tracing-journald/Cargo.toml, tracing-log/Cargo.toml, tracing-macros/Cargo.toml, tracing-mock/Cargo.toml, tracing-serde/Cargo.toml, tracing-subscriber/Cargo.toml, tracing-test/Cargo.toml, tracing-tower/Cargo.toml, tracing/Cargo.toml, tracing/test-log-support/Cargo.toml, tracing/test_static_max_level_features/Cargo.toml
dependency_bot_commit_share0
How it's scored
45/45Type-checkable code — Rust (statically typed)
53.9/55Manageable file sizes — 5/260 source files over 60KB
Inputs used
primary_languageRust
largest_source_bytes115,718
source_files_sampled260
oversized_source_files5
How it's scored
0/40API schema (OpenAPI/GraphQL/proto)
0/20MCP server
40/40Runnable examples — examples
Inputs used
example_dirsexamples
has_mcp_signalno
api_schema_files

Key facts

6,818GitHub stars
98contributors
62commits, last 12 months
66days since last push
100releases
1bus factor
633open issues
crates.iopackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token
  • crates package 'tracing-test' points at a different repository (https://github.com/dbrgn/tracing-test); excluded from ecosystem scoring

More detail

Star and fork history 0 ★ / 916 ⇿
0Stars
916Forks
100Releases

When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.

02004006008001,00088992019-032022-112026-07
Major 0Minor 0Patch 0

Each point covers 7 days.

OpenSSF Scorecard 6.3 / 10
6.3aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-08-04 20:15 UTC

10Binary-Artifactsno binaries found in the repo
n/aBranch-Protectioninternal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md
9CI-Tests27 out of 30 merged PRs checked by a CI test -- score normalized to 9
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
10Code-Reviewall changesets reviewed
10Contributorsproject has 71 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
2Maintained1 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 2
n/aPackagingpackaging workflow not detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTSAST tool is not run on all commits -- score normalized to 0
9Security-Policysecurity policy file detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
10Vulnerabilities0 existing vulnerabilities detected
Direct dependencies 66
RegistryPackageVersion constraintManifest
crates.iocrossbeam-channel0.5.6tracing-appender/Cargo.toml
crates.iotime0.3.2tracing-appender/Cargo.toml
crates.ioparking_lot0.12.1tracing-appender/Cargo.toml
crates.iosymlink0.1.0tracing-appender/Cargo.toml
crates.iothiserror2tracing-appender/Cargo.toml
crates.iotracing-subscriber0.3.18tracing-appender/Cargo.toml
crates.ioproc-macro21.0.60tracing-attributes/Cargo.toml
crates.iosyn2.0tracing-attributes/Cargo.toml
crates.ioquote1.0.20tracing-attributes/Cargo.toml
crates.iotracing-subscriber0.3.0tracing-error/Cargo.toml
crates.iotracing0.1.35tracing-error/Cargo.toml
crates.iotracing-subscriber0.3.0tracing-flame/Cargo.toml
crates.iotracing0.1.35tracing-flame/Cargo.toml
crates.ioonce_cell1.13.0tracing-flame/Cargo.toml
crates.iofutures_010.1.31tracing-futures/Cargo.toml
crates.iofutures0.3.21tracing-futures/Cargo.toml
crates.iofutures-task0.3.21tracing-futures/Cargo.toml
crates.iopin-project-lite0.2.9tracing-futures/Cargo.toml
crates.iotracing0.1.35tracing-futures/Cargo.toml
crates.iotokio-executor0.1.10tracing-futures/Cargo.toml
crates.iotokio_010.1.22tracing-futures/Cargo.toml
crates.iotokio-threadpool0.1.18tracing-futures/Cargo.toml
crates.iomio0.6.23tracing-futures/Cargo.toml
crates.iolibc0.2.126tracing-journald/Cargo.toml
crates.iotracing-core0.1.28tracing-journald/Cargo.toml
crates.iotracing-subscriber0.3.0tracing-journald/Cargo.toml
crates.iotracing-core0.1.28tracing-log/Cargo.toml
crates.iolog0.4.17tracing-log/Cargo.toml
crates.ioonce_cell1.13.0tracing-log/Cargo.toml
crates.iolru0.7.7tracing-log/Cargo.toml
crates.ioahash0.7.7tracing-log/Cargo.toml
crates.iotracing0.1.35tracing-macros/Cargo.toml
crates.iotracing0.1.43tracing-mock/Cargo.toml
crates.iotracing-core0.1.28tracing-mock/Cargo.toml
crates.iotracing-subscriber0.3tracing-mock/Cargo.toml
crates.iotokio-stream0.1.9tracing-mock/Cargo.toml
crates.ioserde1tracing-serde/Cargo.toml
crates.iotracing-core0.1.28tracing-serde/Cargo.toml
crates.iotracing-core0.1.35tracing-subscriber/Cargo.toml
crates.iotracing0.1.43tracing-subscriber/Cargo.toml
crates.iomatchers0.2.0tracing-subscriber/Cargo.toml
crates.ioregex-automata0.4tracing-subscriber/Cargo.toml
crates.iosmallvec1.9.0tracing-subscriber/Cargo.toml
crates.ioonce_cell1.13.0tracing-subscriber/Cargo.toml
crates.iotracing-log0.2.0tracing-subscriber/Cargo.toml
crates.ionu-ansi-term0.50.0tracing-subscriber/Cargo.toml
crates.iotime0.3.2tracing-subscriber/Cargo.toml
crates.ioserde_json1.0.82tracing-subscriber/Cargo.toml
crates.ioserde1.0.140tracing-subscriber/Cargo.toml
crates.iotracing-serde0.2.0tracing-subscriber/Cargo.toml
crates.ioparking_lot0.12.1tracing-subscriber/Cargo.toml
crates.iochrono0.4.26tracing-subscriber/Cargo.toml
crates.iosharded-slab0.1.4tracing-subscriber/Cargo.toml
crates.iothread_local1.1.4tracing-subscriber/Cargo.toml
crates.iotokio-test0.4.2tracing-test/Cargo.toml
crates.iotracing0.1.35tracing-tower/Cargo.toml
crates.iofutures0.3.21tracing-tower/Cargo.toml
crates.iotower-service0.3.2tracing-tower/Cargo.toml
crates.iotower-layer0.3.1tracing-tower/Cargo.toml
crates.iotower_make0.3.0tracing-tower/Cargo.toml
crates.iopin-project-lite0.2.9tracing-tower/Cargo.toml
crates.iohttp0.2.8tracing-tower/Cargo.toml
crates.iotracing-core0.1.36tracing/Cargo.toml
crates.iolog0.4.17tracing/Cargo.toml
crates.iotracing-attributes0.1.31tracing/Cargo.toml
crates.iopin-project-lite0.2.9tracing/Cargo.toml
All dependencies 65

Full resolved dependency set from the GitHub dependency graph: 39 direct and 26 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
crates.ioahashdirect
crates.iochronodirect
crates.iocrossbeam-channeldirect
crates.iofuturesdirect
crates.iofutures-taskdirect
crates.iohttpdirect
crates.iolibcdirect
crates.iologdirect
crates.iolrudirect
crates.iomatchersdirect
crates.iomiodirect
crates.ionu-ansi-termdirect
crates.ioonce_celldirect
crates.ioparking_lotdirect
crates.iopin-project-litedirect
crates.ioproc-macro2direct
crates.ioquotedirect
crates.ioregex-automatadirect
crates.ioserdedirect
crates.ioserde_jsondirect
crates.iosharded-slabdirect
crates.iosmallvecdirect
crates.iosymlinkdirect
crates.iosyndirect
crates.iothiserrordirect
crates.iothread_localdirect
crates.iotimedirect
crates.iotokio-executordirect
crates.iotokio-streamdirect
crates.iotokio-testdirect
crates.iotokio-threadpooldirect
crates.iotower-layerdirect
crates.iotower-servicedirect
crates.iotracingdirect
crates.iotracing-attributesdirect
crates.iotracing-coredirect
crates.iotracing-logdirect
crates.iotracing-serdedirect
crates.iotracing-subscriberdirect
crates.ioansi-to-tuiindirect
crates.ioarghindirect
crates.ioasync-traitindirect
crates.iobytesindirect
crates.iocriterionindirect
crates.iocrosstermindirect
crates.iohumantimeindirect
crates.iohyperindirect
crates.ioinfernoindirect
crates.iorandindirect
crates.ioratatuiindirect
crates.ioregexindirect
crates.iorustversionindirect
crates.iosnafuindirect
crates.iotempfileindirect
crates.iotokioindirect
crates.iotowerindirect
crates.iotower-makeindirect
crates.iotracing-appenderindirect
crates.iotracing-futuresindirect
crates.iotracing-towerindirect
crates.iotrybuildindirect
crates.iotui-textareaindirect
crates.iovaluableindirect
crates.iovaluable-serdeindirect
crates.iowasm-bindgen-testindirect
Dependency advisories 2

Installing crates:tracing@0.1.44 pulls in 79 packages, direct and transitive: 2 carry known advisories, of which 0 are direct dependencies.

PackageVersionRelationSeverityAdvisoriesFixed in
atty0.2.14indirectlow3
serde_cbor0.11.2indirectunknown1

An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.

Raw JSON report machine-readable

Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.

Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v2.5.0, schema v0.31.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statisticscrates.io.