https://github.com/tokio-rs/tracing

diagnostics logging logging-and-metrics logging-facade logging-library rust rust-lang tracing

Score: 36.61012880063085

Last synced: about 10 hours ago
JSON representation

Repository metadata:

Application level tracing for Rust.

Host: GitHub
URL: https://github.com/tokio-rs/tracing
Owner: tokio-rs
License: mit
Created: 2019-01-11T18:17:15.000Z (over 7 years ago)
Default Branch: main
Last Pushed: 2026-04-29T20:49:43.000Z (19 days ago)
Last Synced: 2026-05-13T00:30:08.335Z (6 days ago)
Topics: diagnostics, logging, logging-and-metrics, logging-facade, logging-library, rust, rust-lang, tracing
Language: Rust
Homepage: https://tracing.rs
Size: 8.86 MB
Stars: 6,674
Watchers: 51
Forks: 889
Open Issues: 827
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Codeowners: .github/CODEOWNERS
- Security: SECURITY.md

Owner metadata:

Name: Tokio
Login: tokio-rs
Email:
Kind: organization
Description: Rust's asynchronous runtime.
Website:
Location:
Twitter:
Company:
Icon url: https://avatars.githubusercontent.com/u/20248544?v=4
Repositories: 47
Last Synced at: 2026-05-16T01:20:25.506Z
Profile URL: https://github.com/tokio-rs

GitHub Events

Total

Commit comment event: 2
Create event: 66
Delete event: 139
Discussion event: 2
Fork event: 131
Issue comment event: 460
Issues event: 155
Pull request event: 206
Pull request review comment event: 90
Pull request review event: 200
Push event: 216
Release event: 12
Watch event: 850
Total: 2529

Last Year

Commit comment event: 2
Create event: 35
Delete event: 115
Discussion event: 2
Fork event: 50
Issue comment event: 193
Issues event: 70
Pull request event: 80
Pull request review comment event: 36
Pull request review event: 77
Push event: 90
Release event: 4
Watch event: 350
Total: 1104

Committers metadata

Last synced: 2 days ago

Total Commits: 1,610
Total Committers: 315
Avg Commits per committer: 5.111
Development Distribution Score (DDS): 0.491

Commits in past year: 96
Committers in past year: 52
Avg Commits per committer in past year: 1.846
Development Distribution Score (DDS) in past year: 0.708

Name	Email	Commits
Eliza Weisman	e**a@b**o	820
David Barsky	m**e@d**m	76
Hayden Stainsby	h**s@c**m	59
Julian Tescher	j**r@g**m	36
Jane Lusby	j**y@y**v	26
Lucio Franco	l**4@g**m	19
Folyd	l**w@g**m	15
Gabriel Goller	g**3@g**m	12
Zeki Sherif	9****f	10
Jonas Platte	j**t@p**e	9
Christopher Durham	c**7@c**m	9
Jack Wrenn	j**k@w**i	8
Alexis Mousset	a**t@r**o	8
dependabot-preview[bot]	2****]	7
Sam Scott	s**9@g**m	7
Jeremy Fitzhardinge	j**y@g**g	7
Bruce Mitchener	b**r@g**m	7
Gus Wynn	g**n@g**m	7
David Mládek	d**z@g**m	6
Evan Schwartz	e**n@r**m	6
Jon Gjengset	j**n@t**m	6
Taiki Endo	t**9@g**m	6
Arthur Gautier	b**o@s**t	6
Luca Palmieri	L****r	6
Daniel Müller	d****o	5
Jarrod Davis	d**r@j**m	5
Teo Klestrup Röijezon	t**o@n**e	5
lunaryorn	s**n@s**e	5
Bhargav Voleti	v**v@a**m	5
tfreiberg-fastly	9****y	4
and 285 more...

Issue and Pull Request metadata

Last synced: 2 days ago

Total issues: 486
Total pull requests: 838
Average time to close issues: 6 months
Average time to close pull requests: 3 months
Total issue authors: 373
Total pull request authors: 294
Average comments per issue: 2.5
Average comments per pull request: 1.55
Merged pull request: 354
Bot issues: 6
Bot pull requests: 21

Past year issues: 78
Past year pull requests: 129
Past year average time to close issues: about 1 month
Past year average time to close pull requests: about 1 month
Past year issue authors: 70
Past year pull request authors: 66
Past year average comments per issue: 1.58
Past year average comments per pull request: 0.74
Past year merged pull request: 53
Past year bot issues: 1
Past year bot pull requests: 0

More stats: https://issues.ecosyste.ms/repositories/lookup?url=https://github.com/tokio-rs/tracing

Top Issue Authors

hds (10)
amab8901 (8)
hawkw (8)
lilyball (8)
github-actions[bot] (6)
davidbarsky (5)
jplatte (4)
matklad (4)
thomaseizinger (4)
lcmgh (4)
yaahc (4)
safinaskar (4)
TheGP (3)
wmmc88 (3)
taladar (3)

Top Pull Request Authors

hawkw (99)
hds (98)
mladedav (34)
davidbarsky (33)
kaffarell (30)
dependabot[bot] (20)
joshka (13)
SUPERCILEX (7)
pkoenig10 (6)
dpc (6)
unlimitedsola (6)
jplatte (6)
djc (5)
paolobarbolini (5)
bnjjj (4)

Top Issue Labels

kind/feature (28)
kind/bug (21)
crate/subscriber (18)
crate/core (15)
crate/tracing (13)
crate/attributes (7)
meta/breaking (7)
good first issue (7)
needs/design (7)
help wanted (6)
kind/rfc (4)
crate/appender (3)
kind/docs (3)
kind/question (2)
crate/fmt (2)
crate/serde (1)
crate/metrics (1)
kind/maintenance (1)
area/ffi (1)
area/wasm (1)
crate/opentelemetry (1)
crate/log (1)
closed/invalid (1)

Top Pull Request Labels

dependencies (21)
crate/subscriber (12)
kind/bug (10)
crate/tracing (10)
kind/maintenance (7)
kind/feature (5)
crate/attributes (4)
kind/perf (4)
meta/breaking (4)
crate/core (4)
kind/docs (2)
crate/futures (1)
area/no-std (1)
crate/opentelemetry (1)
crate/appender (1)

Package metadata

Total packages: 14
Total downloads:
- cargo: 2,970,215,037 total
Total docker downloads: 388,112,655
Total dependent packages: 12,141 (may contain duplicates)
Total dependent repositories: 170,404 (may contain duplicates)
Total versions: 242
Total maintainers: 7
Total advisories: 2

crates.io: tracing

Application-level tracing for Rust.

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing/
Licenses: MIT
Latest release: 0.1.44 (published 5 months ago)
Last Synced: 2026-05-17T10:22:05.390Z (1 day ago)
Versions: 46
Dependent Packages: 7,107
Dependent Repositories: 43,966
Downloads: 597,948,401 Total
Docker Downloads: 52,044,106
Rankings:
- Dependent packages count: 0.016%
- Downloads: 0.059%
- Dependent repos count: 0.074%
- Docker downloads count: 0.096%
- Average: 0.567%
- Forks count: 1.454%
- Stargazers count: 1.706%
Maintainers (1)
- carllerche
Advisories:
- use-after-free in tracing

crates.io: tracing-subscriber

Utilities for implementing and composing `tracing` subscribers.

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing-subscriber/
Licenses: MIT
Latest release: 0.3.23 (published 2 months ago)
Last Synced: 2026-05-17T19:14:36.165Z (about 22 hours ago)
Versions: 67
Dependent Packages: 3,777
Dependent Repositories: 20,007
Downloads: 417,088,905 Total
Docker Downloads: 43,994,870
Rankings:
- Dependent packages count: 0.029%
- Docker downloads count: 0.118%
- Downloads: 0.13%
- Dependent repos count: 0.166%
- Average: 0.601%
- Forks count: 1.454%
- Stargazers count: 1.706%
Maintainers (2)
- hawkw
- davidbarsky
Advisories:
- Tracing logging user input may result in poisoning logs with ANSI escape sequences

crates.io: tracing-core

Core primitives for application-level tracing.

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing-core/
Licenses: MIT
Latest release: 0.1.36 (published 5 months ago)
Last Synced: 2026-05-17T20:00:46.659Z (about 21 hours ago)
Versions: 38
Dependent Packages: 171
Dependent Repositories: 42,227
Downloads: 608,423,776 Total
Docker Downloads: 52,044,106
Rankings:
- Downloads: 0.059%
- Dependent repos count: 0.083%
- Docker downloads count: 0.096%
- Dependent packages count: 0.442%
- Average: 0.64%
- Forks count: 1.454%
- Stargazers count: 1.706%
Maintainers (1)
- hawkw

crates.io: tracing-log

Provides compatibility between `tracing` and the `log` crate.

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing-log/
Licenses: MIT
Latest release: 0.2.0 (published over 2 years ago)
Last Synced: 2026-05-18T01:30:56.241Z (about 16 hours ago)
Versions: 9
Dependent Packages: 226
Dependent Repositories: 17,073
Downloads: 384,377,304 Total
Docker Downloads: 43,116,224
Rankings:
- Docker downloads count: 0.12%
- Downloads: 0.151%
- Dependent repos count: 0.19%
- Dependent packages count: 0.351%
- Average: 0.662%
- Forks count: 1.454%
- Stargazers count: 1.706%
Maintainers (1)
- hawkw

crates.io: tracing-attributes

Procedural macro attributes for automatically instrumenting functions.

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing-attributes/
Licenses: MIT
Latest release: 0.1.31 (published 6 months ago)
Last Synced: 2026-05-18T04:30:47.345Z (about 13 hours ago)
Versions: 32
Dependent Packages: 46
Dependent Repositories: 26,922
Downloads: 523,842,562 Total
Docker Downloads: 45,075,183
Rankings:
- Downloads: 0.091%
- Docker downloads count: 0.098%
- Dependent repos count: 0.134%
- Average: 0.744%
- Dependent packages count: 0.978%
- Forks count: 1.454%
- Stargazers count: 1.706%
Maintainers (1)
- hawkw

crates.io: tracing-futures

Utilities for instrumenting `futures` with `tracing`.

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing-futures/
Licenses: MIT
Latest release: 0.2.5 (published about 5 years ago)
Last Synced: 2026-05-17T23:27:23.666Z (about 18 hours ago)
Versions: 10
Dependent Packages: 382
Dependent Repositories: 11,227
Downloads: 117,996,709 Total
Docker Downloads: 23,425,274
Rankings:
- Downloads: 0.205%
- Dependent packages count: 0.212%
- Dependent repos count: 0.267%
- Average: 0.776%
- Docker downloads count: 0.81%
- Forks count: 1.454%
- Stargazers count: 1.706%
Maintainers (1)
- hawkw

crates.io: tracing-error

Utilities for enriching errors with `tracing`.

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing-error/
Licenses: MIT
Latest release: 0.2.1 (published over 1 year ago)
Last Synced: 2026-05-17T23:27:23.045Z (about 18 hours ago)
Versions: 5
Dependent Packages: 148
Dependent Repositories: 1,678
Downloads: 45,765,517 Total
Docker Downloads: 31,711,253
Rankings:
- Dependent packages count: 0.566%
- Docker downloads count: 0.582%
- Downloads: 0.74%
- Dependent repos count: 0.98%
- Average: 1.026%
- Forks count: 1.526%
- Stargazers count: 1.761%
Maintainers (1)
- hawkw

crates.io: tracing-serde

A compatibility layer for serializing trace data with `serde`

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing-serde/
Licenses: MIT
Latest release: 0.2.0 (published over 1 year ago)
Last Synced: 2026-05-17T07:04:09.079Z (1 day ago)
Versions: 6
Dependent Packages: 17
Dependent Repositories: 5,656
Downloads: 186,571,363 Total
Docker Downloads: 26,746,336
Rankings:
- Downloads: 0.296%
- Dependent repos count: 0.459%
- Docker downloads count: 0.508%
- Average: 1.181%
- Forks count: 1.454%
- Stargazers count: 1.706%
- Dependent packages count: 2.66%
Maintainers (1)
- hawkw

crates.io: tracing-appender

Provides utilities for file appenders and making non-blocking writers.

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing-appender/
Licenses: MIT
Latest release: 0.2.5 (published about 1 month ago)
Last Synced: 2026-05-17T13:47:37.234Z (1 day ago)
Versions: 9
Dependent Packages: 230
Dependent Repositories: 1,306
Downloads: 73,817,477 Total
Docker Downloads: 23,293,966
Rankings:
- Dependent packages count: 0.584%
- Downloads: 0.793%
- Dependent repos count: 1.115%
- Average: 1.306%
- Forks count: 1.526%
- Stargazers count: 1.761%
- Docker downloads count: 2.06%
Maintainers (1)
- hawkw

crates.io: tracing-flame

Tracing layer for creating flamegraphs from span timings

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing-flame/
Licenses: MIT
Latest release: 0.2.0 (published over 4 years ago)
Last Synced: 2026-05-17T00:02:33.070Z (1 day ago)
Versions: 2
Dependent Packages: 15
Dependent Repositories: 166
Downloads: 6,309,409 Total
Docker Downloads: 23,283,487
Rankings:
- Docker downloads count: 0.953%
- Forks count: 1.524%
- Stargazers count: 1.747%
- Average: 2.196%
- Downloads: 2.72%
- Dependent repos count: 2.957%
- Dependent packages count: 3.275%
Maintainers (2)
- hawkw
- yaahc

crates.io: tracing-journald

rich journald subscriber for `tracing`

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing-journald/
Licenses: MIT
Latest release: 0.3.2 (published 6 months ago)
Last Synced: 2026-05-17T07:02:59.648Z (1 day ago)
Versions: 9
Dependent Packages: 17
Dependent Repositories: 170
Downloads: 5,927,358 Total
Docker Downloads: 23,282,579
Rankings:
- Forks count: 1.524%
- Stargazers count: 1.747%
- Docker downloads count: 2.377%
- Average: 2.441%
- Downloads: 2.793%
- Dependent repos count: 2.928%
- Dependent packages count: 3.275%
Maintainers (2)
- hawkw
- Ralith

crates.io: tracing-fmt

A `tracing` subscriber that formats and logs trace data. Moved to the `tracing-subscriber` crate.

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing-fmt/
Licenses: MIT
Latest release: 0.1.1 (published over 6 years ago)
Last Synced: 2026-05-17T07:03:40.486Z (1 day ago)
Versions: 5
Dependent Packages: 5
Dependent Repositories: 6
Downloads: 77,354 Total
Rankings:
- Forks count: 1.524%
- Stargazers count: 1.747%
- Average: 5.082%
- Dependent packages count: 5.309%
- Downloads: 7.375%
- Dependent repos count: 9.453%
Maintainers (2)
- hawkw
- davidbarsky

crates.io: curvine-tracing-appender

Provides utilities for file appenders and making non-blocking writers.

Homepage: https://tokio.rs
Documentation: https://docs.rs/curvine-tracing-appender/
Licenses: MIT
Latest release: 0.2.3 (published 10 months ago)
Last Synced: 2026-05-17T07:02:20.691Z (1 day ago)
Versions: 1
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 5,179 Total
Rankings:
- Dependent repos count: 20.736%
- Dependent packages count: 27.453%
- Average: 47.593%
- Downloads: 94.592%
Maintainers (1)
- bigbigxu

crates.io: tracing-mock

Utilities for testing `tracing` and crates that uses it.

Homepage: https://tokio.rs
Documentation: https://docs.rs/tracing-mock/
Licenses: MIT
Latest release: 0.1.0-beta.3 (published 6 months ago)
Last Synced: 2026-05-17T23:27:26.277Z (about 18 hours ago)
Versions: 3
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 2,063,723 Total
Docker Downloads: 95,271
Rankings:
- Dependent repos count: 24.302%
- Dependent packages count: 32.234%
- Average: 50.779%
- Downloads: 95.802%
Maintainers (2)
- hawkw
- hds

Dependencies

.github/workflows/CI.yml actions

actions-rs/clippy-check v1 composite
actions/checkout v3 composite
dtolnay/rust-toolchain stable composite
dtolnay/rust-toolchain nightly composite
dtolnay/rust-toolchain master composite
taiki-e/install-action cargo-hack composite
taiki-e/install-action cargo-minimal-versions composite
taiki-e/install-action nextest composite
taiki-e/install-action wasm-pack composite

.github/workflows/audit.yml actions

actions-rs/audit-check v1 composite
actions/checkout v3 composite

.github/workflows/release.yml actions

actions/checkout v3 composite
taiki-e/create-gh-release-action v1 composite

Cargo.toml cargo

examples/Cargo.toml cargo

tracing/Cargo.toml cargo

criterion 0.3.6 development
futures 0.3.21 development
log 0.4.17 development
log 0.4.17
pin-project-lite 0.2.9
tracing-attributes 0.2
tracing-core 0.2

tracing/test-log-support/Cargo.toml cargo

tracing/test_static_max_level_features/Cargo.toml cargo

tokio-test 0.2.0 development

tracing-appender/Cargo.toml cargo

criterion 0.3.6 development
tempfile 3.3.0 development
time 0.3.2 development
tracing 0.2 development
crossbeam-channel 0.5.5
parking_lot 0.12.1
thiserror 1.0.31
time 0.3.2
tracing-subscriber 0.3

tracing-attributes/Cargo.toml cargo

async-trait 0.1.67 development
rustversion 1.0.9 development
tokio-test 0.4.2 development
tracing 0.2 development
tracing-subscriber 0.3 development
trybuild 1.0.64 development
proc-macro2 1.0.40
quote 1.0.20
syn 2.0

tracing-core/Cargo.toml cargo

tracing-error/Cargo.toml cargo

tracing-flame/Cargo.toml cargo

tempfile 3.3.0 development
once_cell 1.13.0
tracing 0.2
tracing-subscriber 0.3

tracing-futures/Cargo.toml cargo

futures 0.3.21 development
tokio-test 0.4.2 development
tracing-core 0.2 development
futures 0.3.21
futures-task 0.3.21
futures_01 0.1.31
mio 0.6.23
pin-project-lite 0.2.9
tokio-executor 0.1.10
tokio-threadpool 0.1.18
tokio_01 0.1.22
tracing 0.2

tracing-journald/Cargo.toml cargo

serde 1.0.139 development
serde_json 1.0.82 development
tracing 0.2 development
libc 0.2.126
tracing-core 0.2
tracing-subscriber 0.3

tracing-log/Cargo.toml cargo

tracing 0.2 development
env_logger 0.8.4
log 0.4.17
once_cell 1.13.0
tracing-core 0.2

tracing-macros/Cargo.toml cargo

tracing-subscriber 0.3 development
tracing 0.2

tracing-mock/Cargo.toml cargo

tracing-serde/Cargo.toml cargo

serde_json 1.0.82 development
serde 1.0.139
tracing-core 0.2

tracing-subscriber/Cargo.toml cargo

criterion 0.3.6 development
log 0.4.17 development
regex 1.6.0 development
time 0.3.2 development
tokio 1.20.0 development
tracing 0.2 development
tracing-futures 0.3 development
tracing-log 0.2 development
chrono 0.4.26
matchers 0.1.0
nu-ansi-term 0.46.0
once_cell 1.13.0
parking_lot 0.12.1
regex 1.6.0
serde 1.0.139
serde_json 1.0.82
sharded-slab 0.1.4
smallvec 1.9.0
thread_local 1.1.4
time 0.3.2
tracing 0.2
tracing-core 0.2
tracing-log 0.2
tracing-serde 0.2

tracing-tower/Cargo.toml cargo

tracing-test/Cargo.toml cargo

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