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  1. tower-http

    Tower middleware and utilities for HTTP clients and servers

    v0.6.8 11.6M #http-middleware #async-io #async
  2. tracing-tree

    A Tracing Layer which prints a tree of spans and events

    v0.4.1 331K #tracing-layer #events-tracing #timing-information #format #instrument
  3. tracing-indicatif

    Tracing layer that automatically creates and manages progress bars for active spans

    v0.3.14 224K #progress-bar #tracing #cli
  4. apalis

    extensible and multithreaded background task processing for Rust

    v1.0.0-rc.2 23K #task-scheduling #cron-job #job-scheduler
  5. tracing-loki

    A tracing layer for shipping logs to Grafana Loki

    v0.2.6 68K #logging-tracing #tracing-layer #loki
  6. sentry-tracing

    Sentry integration for the tracing and tracing-subscriber crates

    v0.46.1 1.0M #tracing-subscriber #sentry-integration #tracing-integration #sentry-sdk #events-tracing #breadcrumbs #error-logging #error-tracing #error-tracking
  7. tracing-durations-export

    Record and visualize parallelism of tracing spans

    v0.3.1 34K #plot #tracing #record
  8. aprender

    Next-generation machine learning library in pure Rust

    v0.24.1 12K #classification #machine-learning #statistics #graph-algorithms
  9. swiftide-indexing

    Fast, streaming indexing, query, and agentic LLM applications in Rust

    v0.32.1 210 #artificial-intelligence #llm #rag #openai
  10. tracing-perfetto

    Tracing layer for recording spans and events as perfetto event format

    v0.1.5 186K #tracing-subscriber #perfetto #profiling #tracing
  11. gearbox

    Excessive tooling for Rust, boosting productivity and operations

    v5.0.0-rc.5 #future-value #tooling
  12. datadog-formatting-layer

    providing a tracing-subscriber layer for formatting events so Datadog can parse them

    v7.0.0 6.7K #tracing-subscriber #datadog #tracing-layer
  13. axum-conf

    simplify the use of Axum, Tokio and Postgres together using configuration. It comes with batteries included and many features can be feature activated.

    v0.3.15 #postgresql #axum #tokio
  14. tracing-oslog

    A layer for tracing that outputs to the oslog on macOS/iOS

    v0.3.0 87K #macos-ios #os-log #macos #ios
  15. traceon

    An easy to use log and tracing formatter with a flattened json or pretty output

    v0.4.0 #tracing-subscriber #logging-tracing #metrics
  16. tracing-perfetto-sdk-layer

    A provider of tracing layers for tracing-subscriber using the native C++ Perfetto SDK

    v0.13.0 58K #tracing-subscriber #perfetto #sdk-layer #native-layer #flavor #in-process
  17. tracing-stackdriver

    Stackdriver-compatible tracing layer and event formatter

    v0.10.0 42K #logging #stackdriver #gcp #google #logging-tracing
  18. tracing-rfc-5424

    A tracing layer that writes to syslog

    v0.2.1 310 #rfc-5424 #syslog #rfc-3164 #tracing
  19. tracing-throttle

    High-performance log deduplication and rate limiting for the tracing ecosystem

    v0.4.1 550 #logging-tracing #rate-limiting #throttling
  20. tracing-flame

    Tracing layer for creating flamegraphs from span timings

    v0.2.0 259K #tracing-subscriber #flame-graph #tracing #profiling
  21. tracing-elastic-apm

    Elastic APM intake API tracing layer

    v4.0.0 190 #apm #tracing #telemetry #elastic
  22. axum-otel

    OpenTelemetry tracing for axum based on tower-http

    v0.31.6 2.0K #logging-tracing #open-telemetry #axum #logging
  23. tracing-layer-slack

    Send filtered tracing events to Slack

    v0.8.2 220 #tracing-layer #slack #tracing #filter
  24. acme

    automated context management engine designed for the scsys ecosystem

    v0.4.0 3.3K #context-management #engine #automations
  25. opentelemetry-configuration

    Opinionated OpenTelemetry SDK configuration wiring together tracing, OTLP export, and lifecycle management

    v0.3.2 #open-telemetry #otlp #telemetry #observability #tracing
  26. neocrates

    A comprehensive Rust library for various utilities and helpers

    v0.1.38 #middleware #cache #helper #internal #cryptography #redis #aws-sts #amazon-s3 #aliyun #diesel
  27. tracing-layer-discord

    Send filtered tracing events to Discord

    v0.3.2 #tracing-layer #tracing #filter #discord
  28. premortem

    A configuration library that performs a premortem on your app's config—finding all the ways it would die before it ever runs

    v0.6.1 160 #config #validation #settings
  29. unrspack-resolver

    ESM / CJS module resolution

    v1.3.0 350 #esm-cjs #enhanced-resolve #node
  30. tracing_android_trace

    Support for Android NDK Tracing

    v0.1.1 4.2K #android-ndk #logging-tracing #android
  31. qcs-api-client-grpc

    gRPC client for the QCS API

    v0.14.0 5.2K #grpc-client #qcs #rigetti #quantum
  32. ddtrace

    integrating Datadog with tracing

    v0.2.1 7.4K #open-telemetry #axum #datadog #tracing
  33. tokio-blocked

    tracing layer that logs tokio tasks that are blocked for too long - helps find synchronous or CPU heavy code in async tokio code

    v0.1.0 1.6K #logging-tracing #tokio #tokio-tracing #anlytics
  34. platform_common

    Common utilities and middleware for microservices: trace-id, structured logging, HTTP propagation, RabbitMQ with auto-reconnect

    v0.4.9 #logging-tracing #distributed-tracing #microservices #middleware
  35. tracing-datadog

    tracing subscriber for DataDog

    v0.6.1 #tracing-subscriber #trace-context #logging #datadog #datadog-exporter #distributed-tracing #trace-layer #w3c #log-formatting #hash-map
  36. async-inspect

    X-ray vision for async Rust - inspect and debug async state machines

    v0.2.0 #state-machine #inspection #async-debugging #tokio
  37. tracing-perfetto-sdk-schema

    Perfetto Prost protobuf bindings used by tracing-perfetto-sdk

    v0.13.0 49K #perfetto #sdk-schema #tracing #tracing-perfetto-sdk #bindings #protobuf #prost #tracing-subscriber
  38. avx-telemetry

    Observability and distributed tracing for Avila Experience Fabric - Structured logging, metrics, and scientific time series

    v0.1.0 #logging-tracing #observability #telemetry #telemetry-metrics
  39. tracing-async2

    Generic tracing layer library for working with tracing events including for async work

    v0.2.10 440 #tokio-tracing #tracing #async-callback #tokio #database #async-database
  40. tracing-s3

    AWS S3 (Express One) , sending trace logs to S3

    v0.1.5 #aws #express-one-zone #logging
  41. tracing-indicatif-patched

    Tracing layer that automatically creates and manages progress bars for active spans

    v0.3.14 650 #progress-bar #tracing #cli #cli-progress-bar
  42. bevy-mod-indigauge

    Understand your users. Grow your game. Track events, session health, and user sentiment with zero fuss

    v0.2.1 #events #indigauge #feedback #indie #game
  43. tracing-etw

    ETW or Linux user_events output for tokio-tracing

    v0.2.2 700 #user-events #etw #tokio-tracing #tracing-layer #event-header #logging-tracing #events-tracing
  44. log-tracing-layer

    Build your own custom tracing layer

    v0.6.0 #tracing-subscriber #tracing-layer #logging #layer #tracing
  45. cew

    Personal Rust utility library

    v0.9.2 800 #re-exports #logging #utility #simple
  46. systemprompt-logging

    Core logging module for systemprompt.io OS

    v0.0.14 #ai-agents #mcp #llm #agent-orchestration #orchestration
  47. axum-routes

    Create an axum Router from an enum and resolve routes

    v0.2.3 280 #axum-router #routes #enums #resolve
  48. tracing-th

    Binding

    v0.1.10 #logging #bindings #tracing #th #layer
  49. tower-http-tracing

    Tracing middleware to span annotated every HTTP request

    v0.3.2 #http-middleware #tower-http #open-telemetry #tracing #middleware
  50. komoju-datadog

    Opinionated Datadog instrumentation toolkit

    v0.6.0 #datadog #statsd #distributed-tracing #instrumentation #amazon-ecs #statsd-metrics #axum #logging #config-env #sqlx
  51. tracing-layer-core

    Send filtered tracing events to a webhook endpoint

    v0.3.1 500 #webhook #tracing #filter
  52. bevy_crossbeam_event

    Fire Bevy events from crossbeam channels

    v0.10.0 #crossbeam-channel #bevy
  53. tracing-texray

    Tracing layer to view a plaintext timeline of spans and events

    v0.2.0 1.2K #tracing-subscriber #plain-text #examine #timeline #render #spans-and-events #printed
  54. betterstack-tracing

    A tracing layer for sending logs to Betterstack

    v0.1.0 #logging-tracing #observability #logging
  55. apalis-board-api

    HTTP utilities for managing apalis task queues

    v1.0.0-rc.2 350 #apalis #task-queue #api
  56. tracing-dlt

    DLT log sink for

    v0.1.0 #logging-tracing #dlt #standard #context #debugging #tracing-layer #tracing-subscriber #covesa #appender #structured-logging
  57. tracing-gcloud-layer

    A tracing layer for sending structured logs to Google Cloud Logging

    v0.2.6 340 #logging-tracing #tracing-layer #gcp #google-cloud #logging
  58. reqray

    Log ‘request x-rays’ for rust programs instrumented with tracing

    v0.4.3 #logging-tracing #tracing-subscriber #nest-deeply #tree #programs
  59. tracing-loki-but-better

    A tracing layer for shipping logs to Grafana Loki

    v0.1.4 #tracing-loki #loki #tracing
  60. scion-sdk-observability

    SCION endhost SDK observability utilities

    v0.2.0 #prometheus #observability #scion
  61. bartos

    server records information from bartoc instances and serves as a central hub for job scheduling

    v0.6.1 #actix #job-scheduling #websocket #scheduling #jobs
  62. tracing_duper

    A tracing subscriber for the Duper format

    v0.1.1 #tracing-subscriber #duper #tracing
  63. roam-tracing

    Cross-cell tracing for roam RPC framework

    v0.6.0 #rpc-framework #tracing-layer #cross-cell #roam #record #logging #emit #host-side #tui #drain
  64. treetrace

    A tracing layer that nests events in spans

    v0.1.1 #tracing-subscriber #logging-tracing #logging
  65. dd-tracing-layer

    Send your logs to Datadog

    v0.6.1 900 #tracing-subscriber #datadog #tracing-layer
  66. rootcause-tracing

    Tracing span support for the rootcause error reporting library

    v0.11.1 #tracing-spans #error-handling #observability #error-spans #tracing
  67. tracing-android

    Tracing layer to log to Android's logcat

    v0.2.0 16K #android-log #android #logging
  68. tracing-distributed

    Tracing layer for multiprocess telemetry

    v0.4.0 16K #tracing-layer #distributed-tracing #tracing
  69. venator

    A tracing layer for exporting logs and spans to the Venator app

    v1.1.0 650 #logging-tracing #profiling #logging
  70. tracing-honeycomb

    Honeycomb.io tracing layer for multiprocess telemetry

    v0.4.3 800 #tracing-layer #honeycomb #tracing #instrumentation
  71. fuel-telemetry

    A tracing library to implement Fuel telemetry

    v0.1.1 #telemetry #influx-db #tracing #file-watcher #system-information #telemetry-layer #tracing-layer #tracing-subscriber
  72. tracing-modality

    tracing Layer (and Subscriber) for emitting trace data to Auxon Modality

    v0.3.0 250 #tracing-subscriber #auxon #emitting #timeline #metadata #debugging
  73. blinq-common

    Common utilities for Blinq Rust microservices: error handling, logging, and HTTP middleware

    v0.1.0 #axum-middleware #error-logging #microservices #error-handling #logging
  74. soph-tracing

    Framework for Web Rustceans

    v0.31.0 550 #web-framework #rustceans
  75. tracing-layer-win-eventlog

    Layer for the tracing_subscriber to write to the Windows EventLog

    v1.0.0 180 #tracing-subscriber #event-log #windows #tracing #tracing-layer #eventlog
  76. tracing-axiom

    The tracing layer for shipping traces to Axiom

    v0.7.0 550 #open-telemetry #axiom #tracing
  77. product-os-tower-http

    Product OS : Tower Http is a derivative of the tower-http crate restructured for both std and no_std environments

    v0.0.3 140 #tower-http #product-os #request-id
  78. nr-tracing-layer

    Send your logs to New Relic

    v0.6.0 130 #tracing-subscriber #new-relic #tracing-layer
  79. sentrystr-tracing

    A decentralized error tracking and alerting system using Nostr

    v0.1.2 #error-tracking #nostr #nostr-relay #tracing-layer #alerting #tracing-integration #structured-logging #dm #encryption
  80. tower-async-http

    Tower Async middleware and utilities for HTTP clients and servers. An "Async Trait" fork from the original Tower Library

    v0.2.0 #async-io #async #future
  81. nano-gcp-logging

    A custom logging layer for sending logs to Google Cloud Logging using tracing and tracing-subscriber

    v0.1.0 #gcp #logging-tracing #async #logging #google-cloud
  82. Try searching with DuckDuckGo or on crates.io.

  83. tracing-rerun

    A tracing layer to send logs to rerun

    v0.2.0 #logging-tracing #re-run #tracing-layer #send
  84. trasy

    error handling with tracing and backtrace support

    v0.1.4 170 #error-tracing #error-handling #backtrace
  85. sc-telemetry

    Telemetry utils

    v30.0.0 27K #telemetry #substrate #polkadot #blockchain #background-task #telemetry-data #logging-tracing #tracing-layer #task-manager
  86. eaze-tracing-honeycomb

    Honeycomb.io tracing layer for multiprocess telemetry

    v0.2.1-eaze.7 #honeycomb #tracing #instrumentation
  87. tracing-aliyun-sls

    A tracing layer for aliyun sls

    v0.2.0 #aliyun #tracing #sls
  88. tracing-loki-fmt

    Grafana Loki tracing layer

    v0.1.2 #tracing-layer #loki #tracing
  89. dd-trace-layer

    A middleware for sending Datadog's trace

    v0.0.2 #middleware #open-telemetry #axum #datadog
  90. tracing-perfspan

    Tracing layer to enable usdt probes for perfspan

    v0.1.0 #tracing-layer #performance-counters #usdt-probes #command-line-tool #performance-analysis #debugging #ile
  91. linera-base

    Base definitions, including cryptography, used by the Linera protocol

    v0.15.11 750 #linera #applications #wasm #blockchain #define
  92. control_plane_logging

    Helper functions for logging

    v0.1.0 #logging #helper #trace-layer #setup-logging #axum #log-messages #axum-router
  93. tracing-layer-axiom

    the layer of sending tracing events to axiom

    v0.1.2 130 #tracing-layer #axiom #sending
  94. tracing-causality

    A tracing layer that tracks the causal relationships between spans, and can be concurrently queried elsewhere

    v0.1.0 #tracing-layer #track #causal #queried #relationship #concurrency
  95. penumbra-sdk-tower-trace

    Penumbra's tower-trace layer

    v2.1.1 160 #penumbra #layer #cosmos #crypto-exchange #protobuf #ethereum #evolving #command-line-client #full-node
  96. tracing-assert-core

    A tracing layer with assertion helpers for use in unit-tests

    v0.1.4 #tracing #unit-testing #tracing-layer #record #notifications #assertions
  97. audit-layer

    A tracing Layer that pushes specific log lines to an audit_log over HTTP

    v0.1.0 #audit-logging #logging-tracing
  98. tracing-ohos

    Tracing layer to log to OpenHarmony's HiLog

    v0.1.0 #harmony-os #open-harmony #logging
  99. eaze-tracing-distributed

    Tracing layer for multiprocess telemetry

    v0.2.0-eaze.7 #tracing-layer #telemetry #tracing
  100. tracing-tree2

    A Tracing Layer which prints a tree of spans and events

    v0.3.0 #tracing-layer #exit #debugging #format #tree #peer-addr #conn #tree-structured #warn #summaries
  101. axum-trace-id

    Axum middleware for adding trace ids to requests

    v0.1.0 500 #trace-id #tracing #request-id #axum #id
  102. pezsc-telemetry

    Telemetry utils

    v15.0.0 #telemetry #bizinikiwi #telemetry-worker #background-task #running #telemetry-data #logging-tracing #blockchain #tracing-layer #task-manager
  103. hyper-trace-id

    Hyper (axum, warp, poem, ...) middleware for adding trace ids to requests

    v0.1.0 #trace-id #warp #request-id #hyper #axum
  104. tower-trace-metrics

    A tower-http TraceLayer that records metrics per request

    v0.1.0 #metrics #trace-layer #tower-http #request #byte
  105. masterror-derive

    Derive macros for masterror

    v0.11.2 550 #macro-derive #generator #error-derive #app-error #error-display