install

Additional install commands

macOS

Homebrewverified · 100%

brew install cargo-llvm-cov

local Homebrew formula metadata

Linux

Nixverified · 92%

nix profile install nixpkgs#cargo-llvm-cov

nixpkgs package indexes · pkgs/by-name/ca/cargo-llvm-cov/package.nix · source: api.github.com

Arch Linux pacmanverified · 92%

sudo pacman -S cargo-llvm-cov

Arch Linux sync databases · cargo-llvm-cov · source: geo.mirror.pkgbuild.com

overview

Package summary

Cargo subcommand to easily use LLVM source-based code coverage

Project links

Commands and aliases

cargo-llvm-cov

history

Project history and usage

cargo-llvm-cov is a Cargo subcommand for LLVM source-based coverage in Rust projects. Its README says it wraps rustc -C instrument-coverage and supports cargo test, cargo run, and cargo nextest flows.

Project history

The crate was first published on crates.io in January 2021 as version 0.0.0. Its official README emphasizes precise line, region, and optional branch coverage while avoiding extra layers between rustc, cargo, and llvm-tools.

Adoption history

The tool became part of common Rust CI coverage workflows because it can emit text, HTML, JSON, lcov, Cobertura, and Codecov-compatible reports. It is packaged by Homebrew, Nix, and Arch according to the input package-manager facts; crates.io reported 6,323,980 downloads when checked on 2026-06-30.

How it is used

Typical usage is cargo llvm-cov for test coverage, cargo llvm-cov --html or --open for local reports, cargo llvm-cov --lcov for CI uploads, and cargo llvm-cov nextest when running tests through cargo-nextest.

Why package nerds care

It matters to Rust package maintainers because it standardizes coverage collection around the compiler's LLVM instrumentation rather than a separate test harness, making coverage easier to reproduce locally and in package CI.

Timeline

2021: First crates.io release 0.0.0.
2026: Crates.io latest version 0.8.7 and Homebrew stable version 0.8.7.

Related projects

Related projects include rustc's -C instrument-coverage support, llvm-tools, cargo-nextest, Codecov, and Cobertura-compatible coverage consumers.

Sources

security posture

No protected-tool coverage found yet

No matching local secret-handling manifest was found for cargo-llvm-cov. Nucleus package metadata is still published here so future coverage has a stable package URL.

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 platform targets.
Build metadata lists 1 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

Command	Kind	Exposure	Note
`cargo-llvm-cov`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08

manager version0.8.7

manager updated2026-05-13

local dataok

upstreamnot checked

latest detectednot detected

https://github.com/taiki-e/cargo-llvm-cov

infoNo cached GitHub release or tag data was available.https://github.com/taiki-e/cargo-llvm-covnone confidence

install metadata

Package metadata

Package key	brew:cargo-llvm-cov
Version	0.8.7
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/cargo-llvm-cov
Homepage	https://github.com/taiki-e/cargo-llvm-cov
Repository	https://github.com/taiki-e/cargo-llvm-cov
Upstream docs	https://github.com/taiki-e/cargo-llvm-cov#readme
License	Apache-2.0 OR MIT
Source archive	https://static.crates.io/crates/cargo-llvm-cov/cargo-llvm-cov-0.8.7.crate
Last updated	2026-05-13T03:04:54Z
Pulse	updated
Build dependencies	rust
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	cargo-llvm-cov
Version Scheme	0
Revision	0
Head Version	HEAD
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	head stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix95%

cargo-llvm-cov

nix profile install nixpkgs#cargo-llvm-cov

normalized package name match
Matched by: Cargo Llvm Cov

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/ca/cargo-llvm-cov/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

pacman95%

cargo-llvm-cov 0.8.7-1

Cargo subcommand to easily use LLVM source-based code coverage (-Z instrument-coverage).

https://github.com/taiki-e/cargo-llvm-cov

sudo pacman -S cargo-llvm-cov

License: MIT AND Apache-2.0
Architecture: x86_64
3 dependencies
normalized package name match
Matched by: Cargo Llvm Cov

Arch Linux sync databases · geo.mirror.pkgbuild.com · Arch Linux sync databases: cargo-llvm-cov from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/cargo-llvm-cov.yml

Used sources

Geiger risk classifier
Nucleus package database
av.db category and tag curation
cross-ecosystem install command graph
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment

Install cargo-llvm-cov with Homebrew, Nix, pacman