# How about changing \[lib\] to \[\[lib\]\], to allow multiple library in a crate?

**URL:** <https://internals.rust-lang.org/t/how-about-changing-lib-to-lib-to-allow-multiple-library-in-a-crate/2022>\
**Category:** cargo\
**Created:** [May 13, 2015, 3:20am UTC](https://internals.rust-lang.org/t/how-about-changing-lib-to-lib-to-allow-multiple-library-in-a-crate/2022 "2015-05-13T03:20:52Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![sfackler](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/sfackler/32/9_2.png) [@sfackler](https://internals.rust-lang.org/u/sfackler)\
**Post date:** [November 14, 2017, 10:56pm UTC](https://internals.rust-lang.org/t/how-about-changing-lib-to-lib-to-allow-multiple-library-in-a-crate/2022/21 "2017-11-14T22:56:42Z")

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`--all` is implicit if you’re in a “bare” workspace root, where you have a `Cargo.toml` that only contains a workspace configuration and isn’t also a crate.

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**Author:** ![system](https://sea2.discourse-cdn.com/flex002/user_avatar/internals.rust-lang.org/system/32/14092_2.png) [@system](https://internals.rust-lang.org/u/system)\
**Post date:** [March 25, 2019, 8:24am UTC](https://internals.rust-lang.org/t/how-about-changing-lib-to-lib-to-allow-multiple-library-in-a-crate/2022/22 "2019-03-25T08:24:27Z")

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