docs(faq): Include an entry on disk space #16349
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Seen a lot of threads where people are asking this question so I figured it would help if we had an official answer. Example: https://www.reddit.com/r/rust/comments/1perari/pain_point_of_rust/nseoj9p/
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r? @weihanglo rustbot has assigned @weihanglo. Use |
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| ## Why does my build take up so much space? | ||
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| Cargo trades off disk space for faster builds including: |
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Do we want to put some tracking issue for reference here (if people are interested)?
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Any you have in mind?
The only one I can think of that would be relevant is #5026
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Update cargo submodule 27 commits in 2c283a9a5c5968eeb9a8f12313f04feb1ff8dfac..c46423de7351e3c4c734b2faa86088a9f5d1302b 2025-12-04 16:47:28 +0000 to 2025-12-12 23:16:12 +0000 - feat(report): cargo report timings HTML replay (rust-lang/cargo#16377) - feat: stabilize `-Zconfig-include` (rust-lang/cargo#16284) - fix(package): Don't verify registry for --list (rust-lang/cargo#16341) - Fixed incorrect locking logic when artifact-dir == build-dir (rust-lang/cargo#16385) - feat(log): make timing messages ready for HTML replay (rust-lang/cargo#16382) - chore(deps): update msrv (1 version) to v1.92 (rust-lang/cargo#16381) - Downgrade curl-sys to 0.4.83 (rust-lang/cargo#16379) - fix(timing): more self-contained timing/log data (rust-lang/cargo#16378) - test: update to `proc_macro::tracked::path` (rust-lang/cargo#16380) - refactor(lint): move lints to separate modules (rust-lang/cargo#16364) - fix(index): Apply feedback from Cargo team (rust-lang/cargo#16369) - fix(lints): handle lints separately at ws pkg level (rust-lang/cargo#16367) - feat(lint): new `implicit_minimum_version_req` lint (rust-lang/cargo#16321) - fix(info): default to local without explicit reg (rust-lang/cargo#16358) - Remove `[no-mentions]` handler in our triagebot config (rust-lang/cargo#16361) - Don't read the config file twice when $CARGO_HOME is a symlink (rust-lang/cargo#16325) - fix(timings): forgot to negate filter (rust-lang/cargo#16352) - fix(doctest): Include all search paths with new build layout (rust-lang/cargo#16348) - fix(layout): Remove hashes from bins in new layout (rust-lang/cargo#16351) - docs(faq): Include an entry on disk space (rust-lang/cargo#16349) - feat(timings): derive concurrency data from unit data (rust-lang/cargo#16350) - perf(layout): Use unit_id, not pkg hash, for bin/lib pkg_dirs for new layout (rust-lang/cargo#16345) - Validate target source paths before compilation with clearer errors (rust-lang/cargo#16338) - test(doc): Remove unused build script (rust-lang/cargo#16344) - refactor(timings): store UnitData in RenderContext instead (rust-lang/cargo#16346) - perf(clean): Optimize (legacy) clean with multiple -p specifiers (rust-lang/cargo#16264) - test: Adjust output for out-of-tree build-dir (rust-lang/cargo#16343)
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Update cargo submodule 29 commits in 2c283a9a5c5968eeb9a8f12313f04feb1ff8dfac..e91b2baa632c0c7e84216c91ecfe107c37d887c1 2025-12-04 16:47:28 +0000 to 2025-12-13 16:29:21 +0000 - refactor(lints): move from cargo::util::lints to cargo::lints (rust-lang/cargo#16392) - test(lint): redact more due to line got omitted (rust-lang/cargo#16391) - feat(report): cargo report timings HTML replay (rust-lang/cargo#16377) - feat: stabilize `-Zconfig-include` (rust-lang/cargo#16284) - fix(package): Don't verify registry for --list (rust-lang/cargo#16341) - Fixed incorrect locking logic when artifact-dir == build-dir (rust-lang/cargo#16385) - feat(log): make timing messages ready for HTML replay (rust-lang/cargo#16382) - chore(deps): update msrv (1 version) to v1.92 (rust-lang/cargo#16381) - Downgrade curl-sys to 0.4.83 (rust-lang/cargo#16379) - fix(timing): more self-contained timing/log data (rust-lang/cargo#16378) - test: update to `proc_macro::tracked::path` (rust-lang/cargo#16380) - refactor(lint): move lints to separate modules (rust-lang/cargo#16364) - fix(index): Apply feedback from Cargo team (rust-lang/cargo#16369) - fix(lints): handle lints separately at ws pkg level (rust-lang/cargo#16367) - feat(lint): new `implicit_minimum_version_req` lint (rust-lang/cargo#16321) - fix(info): default to local without explicit reg (rust-lang/cargo#16358) - Remove `[no-mentions]` handler in our triagebot config (rust-lang/cargo#16361) - Don't read the config file twice when $CARGO_HOME is a symlink (rust-lang/cargo#16325) - fix(timings): forgot to negate filter (rust-lang/cargo#16352) - fix(doctest): Include all search paths with new build layout (rust-lang/cargo#16348) - fix(layout): Remove hashes from bins in new layout (rust-lang/cargo#16351) - docs(faq): Include an entry on disk space (rust-lang/cargo#16349) - feat(timings): derive concurrency data from unit data (rust-lang/cargo#16350) - perf(layout): Use unit_id, not pkg hash, for bin/lib pkg_dirs for new layout (rust-lang/cargo#16345) - Validate target source paths before compilation with clearer errors (rust-lang/cargo#16338) - test(doc): Remove unused build script (rust-lang/cargo#16344) - refactor(timings): store UnitData in RenderContext instead (rust-lang/cargo#16346) - perf(clean): Optimize (legacy) clean with multiple -p specifiers (rust-lang/cargo#16264) - test: Adjust output for out-of-tree build-dir (rust-lang/cargo#16343)
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Update cargo submodule 29 commits in 2c283a9a5c5968eeb9a8f12313f04feb1ff8dfac..e91b2baa632c0c7e84216c91ecfe107c37d887c1 2025-12-04 16:47:28 +0000 to 2025-12-13 16:29:21 +0000 - refactor(lints): move from cargo::util::lints to cargo::lints (rust-lang/cargo#16392) - test(lint): redact more due to line got omitted (rust-lang/cargo#16391) - feat(report): cargo report timings HTML replay (rust-lang/cargo#16377) - feat: stabilize `-Zconfig-include` (rust-lang/cargo#16284) - fix(package): Don't verify registry for --list (rust-lang/cargo#16341) - Fixed incorrect locking logic when artifact-dir == build-dir (rust-lang/cargo#16385) - feat(log): make timing messages ready for HTML replay (rust-lang/cargo#16382) - chore(deps): update msrv (1 version) to v1.92 (rust-lang/cargo#16381) - Downgrade curl-sys to 0.4.83 (rust-lang/cargo#16379) - fix(timing): more self-contained timing/log data (rust-lang/cargo#16378) - test: update to `proc_macro::tracked::path` (rust-lang/cargo#16380) - refactor(lint): move lints to separate modules (rust-lang/cargo#16364) - fix(index): Apply feedback from Cargo team (rust-lang/cargo#16369) - fix(lints): handle lints separately at ws pkg level (rust-lang/cargo#16367) - feat(lint): new `implicit_minimum_version_req` lint (rust-lang/cargo#16321) - fix(info): default to local without explicit reg (rust-lang/cargo#16358) - Remove `[no-mentions]` handler in our triagebot config (rust-lang/cargo#16361) - Don't read the config file twice when $CARGO_HOME is a symlink (rust-lang/cargo#16325) - fix(timings): forgot to negate filter (rust-lang/cargo#16352) - fix(doctest): Include all search paths with new build layout (rust-lang/cargo#16348) - fix(layout): Remove hashes from bins in new layout (rust-lang/cargo#16351) - docs(faq): Include an entry on disk space (rust-lang/cargo#16349) - feat(timings): derive concurrency data from unit data (rust-lang/cargo#16350) - perf(layout): Use unit_id, not pkg hash, for bin/lib pkg_dirs for new layout (rust-lang/cargo#16345) - Validate target source paths before compilation with clearer errors (rust-lang/cargo#16338) - test(doc): Remove unused build script (rust-lang/cargo#16344) - refactor(timings): store UnitData in RenderContext instead (rust-lang/cargo#16346) - perf(clean): Optimize (legacy) clean with multiple -p specifiers (rust-lang/cargo#16264) - test: Adjust output for out-of-tree build-dir (rust-lang/cargo#16343)
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Update cargo submodule 29 commits in 2c283a9a5c5968eeb9a8f12313f04feb1ff8dfac..e91b2baa632c0c7e84216c91ecfe107c37d887c1 2025-12-04 16:47:28 +0000 to 2025-12-13 16:29:21 +0000 - refactor(lints): move from cargo::util::lints to cargo::lints (rust-lang/cargo#16392) - test(lint): redact more due to line got omitted (rust-lang/cargo#16391) - feat(report): cargo report timings HTML replay (rust-lang/cargo#16377) - feat: stabilize `-Zconfig-include` (rust-lang/cargo#16284) - fix(package): Don't verify registry for --list (rust-lang/cargo#16341) - Fixed incorrect locking logic when artifact-dir == build-dir (rust-lang/cargo#16385) - feat(log): make timing messages ready for HTML replay (rust-lang/cargo#16382) - chore(deps): update msrv (1 version) to v1.92 (rust-lang/cargo#16381) - Downgrade curl-sys to 0.4.83 (rust-lang/cargo#16379) - fix(timing): more self-contained timing/log data (rust-lang/cargo#16378) - test: update to `proc_macro::tracked::path` (rust-lang/cargo#16380) - refactor(lint): move lints to separate modules (rust-lang/cargo#16364) - fix(index): Apply feedback from Cargo team (rust-lang/cargo#16369) - fix(lints): handle lints separately at ws pkg level (rust-lang/cargo#16367) - feat(lint): new `implicit_minimum_version_req` lint (rust-lang/cargo#16321) - fix(info): default to local without explicit reg (rust-lang/cargo#16358) - Remove `[no-mentions]` handler in our triagebot config (rust-lang/cargo#16361) - Don't read the config file twice when $CARGO_HOME is a symlink (rust-lang/cargo#16325) - fix(timings): forgot to negate filter (rust-lang/cargo#16352) - fix(doctest): Include all search paths with new build layout (rust-lang/cargo#16348) - fix(layout): Remove hashes from bins in new layout (rust-lang/cargo#16351) - docs(faq): Include an entry on disk space (rust-lang/cargo#16349) - feat(timings): derive concurrency data from unit data (rust-lang/cargo#16350) - perf(layout): Use unit_id, not pkg hash, for bin/lib pkg_dirs for new layout (rust-lang/cargo#16345) - Validate target source paths before compilation with clearer errors (rust-lang/cargo#16338) - test(doc): Remove unused build script (rust-lang/cargo#16344) - refactor(timings): store UnitData in RenderContext instead (rust-lang/cargo#16346) - perf(clean): Optimize (legacy) clean with multiple -p specifiers (rust-lang/cargo#16264) - test: Adjust output for out-of-tree build-dir (rust-lang/cargo#16343)
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Update cargo submodule 29 commits in 2c283a9a5c5968eeb9a8f12313f04feb1ff8dfac..e91b2baa632c0c7e84216c91ecfe107c37d887c1 2025-12-04 16:47:28 +0000 to 2025-12-13 16:29:21 +0000 - refactor(lints): move from cargo::util::lints to cargo::lints (rust-lang/cargo#16392) - test(lint): redact more due to line got omitted (rust-lang/cargo#16391) - feat(report): cargo report timings HTML replay (rust-lang/cargo#16377) - feat: stabilize `-Zconfig-include` (rust-lang/cargo#16284) - fix(package): Don't verify registry for --list (rust-lang/cargo#16341) - Fixed incorrect locking logic when artifact-dir == build-dir (rust-lang/cargo#16385) - feat(log): make timing messages ready for HTML replay (rust-lang/cargo#16382) - chore(deps): update msrv (1 version) to v1.92 (rust-lang/cargo#16381) - Downgrade curl-sys to 0.4.83 (rust-lang/cargo#16379) - fix(timing): more self-contained timing/log data (rust-lang/cargo#16378) - test: update to `proc_macro::tracked::path` (rust-lang/cargo#16380) - refactor(lint): move lints to separate modules (rust-lang/cargo#16364) - fix(index): Apply feedback from Cargo team (rust-lang/cargo#16369) - fix(lints): handle lints separately at ws pkg level (rust-lang/cargo#16367) - feat(lint): new `implicit_minimum_version_req` lint (rust-lang/cargo#16321) - fix(info): default to local without explicit reg (rust-lang/cargo#16358) - Remove `[no-mentions]` handler in our triagebot config (rust-lang/cargo#16361) - Don't read the config file twice when $CARGO_HOME is a symlink (rust-lang/cargo#16325) - fix(timings): forgot to negate filter (rust-lang/cargo#16352) - fix(doctest): Include all search paths with new build layout (rust-lang/cargo#16348) - fix(layout): Remove hashes from bins in new layout (rust-lang/cargo#16351) - docs(faq): Include an entry on disk space (rust-lang/cargo#16349) - feat(timings): derive concurrency data from unit data (rust-lang/cargo#16350) - perf(layout): Use unit_id, not pkg hash, for bin/lib pkg_dirs for new layout (rust-lang/cargo#16345) - Validate target source paths before compilation with clearer errors (rust-lang/cargo#16338) - test(doc): Remove unused build script (rust-lang/cargo#16344) - refactor(timings): store UnitData in RenderContext instead (rust-lang/cargo#16346) - perf(clean): Optimize (legacy) clean with multiple -p specifiers (rust-lang/cargo#16264) - test: Adjust output for out-of-tree build-dir (rust-lang/cargo#16343)
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Update cargo submodule 29 commits in 2c283a9a5c5968eeb9a8f12313f04feb1ff8dfac..e91b2baa632c0c7e84216c91ecfe107c37d887c1 2025-12-04 16:47:28 +0000 to 2025-12-13 16:29:21 +0000 - refactor(lints): move from cargo::util::lints to cargo::lints (rust-lang/cargo#16392) - test(lint): redact more due to line got omitted (rust-lang/cargo#16391) - feat(report): cargo report timings HTML replay (rust-lang/cargo#16377) - feat: stabilize `-Zconfig-include` (rust-lang/cargo#16284) - fix(package): Don't verify registry for --list (rust-lang/cargo#16341) - Fixed incorrect locking logic when artifact-dir == build-dir (rust-lang/cargo#16385) - feat(log): make timing messages ready for HTML replay (rust-lang/cargo#16382) - chore(deps): update msrv (1 version) to v1.92 (rust-lang/cargo#16381) - Downgrade curl-sys to 0.4.83 (rust-lang/cargo#16379) - fix(timing): more self-contained timing/log data (rust-lang/cargo#16378) - test: update to `proc_macro::tracked::path` (rust-lang/cargo#16380) - refactor(lint): move lints to separate modules (rust-lang/cargo#16364) - fix(index): Apply feedback from Cargo team (rust-lang/cargo#16369) - fix(lints): handle lints separately at ws pkg level (rust-lang/cargo#16367) - feat(lint): new `implicit_minimum_version_req` lint (rust-lang/cargo#16321) - fix(info): default to local without explicit reg (rust-lang/cargo#16358) - Remove `[no-mentions]` handler in our triagebot config (rust-lang/cargo#16361) - Don't read the config file twice when $CARGO_HOME is a symlink (rust-lang/cargo#16325) - fix(timings): forgot to negate filter (rust-lang/cargo#16352) - fix(doctest): Include all search paths with new build layout (rust-lang/cargo#16348) - fix(layout): Remove hashes from bins in new layout (rust-lang/cargo#16351) - docs(faq): Include an entry on disk space (rust-lang/cargo#16349) - feat(timings): derive concurrency data from unit data (rust-lang/cargo#16350) - perf(layout): Use unit_id, not pkg hash, for bin/lib pkg_dirs for new layout (rust-lang/cargo#16345) - Validate target source paths before compilation with clearer errors (rust-lang/cargo#16338) - test(doc): Remove unused build script (rust-lang/cargo#16344) - refactor(timings): store UnitData in RenderContext instead (rust-lang/cargo#16346) - perf(clean): Optimize (legacy) clean with multiple -p specifiers (rust-lang/cargo#16264) - test: Adjust output for out-of-tree build-dir (rust-lang/cargo#16343)
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What does this PR try to resolve?
Seen a lot of threads where people are asking this question so I figured it would help if we had an official answer.
Example: https://www.reddit.com/r/rust/comments/1perari/pain_point_of_rust/nseoj9p/
How to test and review this PR?