build-system: cargo: Support installing Cargo workspace.

*guix/build-system/cargo.scm (cargo-build, cargo-cross-build)
[#:cargo-install-paths]: New argument.
* guix/build/cargo-build-system.scm (install): Use it.
* doc/guix.texi (Build Systems)[cargo-build-system]: Document it.

Change-Id: I74ed1972a5716da05afeac8edb2b0e4b6834bf40

1 files changed, 4 insertions, 1 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index 5648f96f24a..b2d58af8473 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -9582,7 +9582,10 @@ This build system supports cargo workspaces.  Parameter
 library crates to package in the @code{package} phase.  Specified crates are
 packaged from left to right, in case there's dependency among them.  For
 example, specifying @code{''("pcre2-sys" "pcre2")} will package
-@code{"pcre2-sys"} first and then @code{"pcre2"}.
+@code{"pcre2-sys"} first and then @code{"pcre2"}.  Parameter
+@code{#:cargo-install-paths} (default: @code{''()}) allows specifying paths of
+binary crates to install in the @code{install} phase, @code{''("crates/atuin")},
+for example.
 @end defvar
 
 @defvar chicken-build-system