gnu: maturin: Move to (gnu packages build-tools).

Authors were parsed from git history with the following command:

    git log --all --grep="maturin:" \
    --pretty=format:";;; Copyright © %as %aN <%aE>"

* gnu/packages/rust-apps.scm (vtracer, uv)[native-inputs]: Replace
maturing with (@ (gnu packages build-tools) maturin).
(maturing): Deprecate variable and move from here ...
* gnu/packages/build-tools.scm: ... to here.

* gnu/packages/embedded.scm: Replace rust-apps with build-tools module.
* gnu/packages/python-crypto.scm: Likewise.
* gnu/packages/python-web.scm: Likewise.
* gnu/packages/time.scm: Likewise.

* gnu/packages/machine-learning.scm: Remove rust-apps module.
* gnu/packages/python-compression.scm: Likewise.
* gnu/packages/python-science.scm: Likewise.
* gnu/packages/python-xyz.scm: Likewise.

Signed-off-by: Maxim Cournoyer <maxim@guixotic.coop>

1 files changed, 0 insertions, 1 deletions

diff --git a/gnu/packages/python-science.scm b/gnu/packages/python-science.scm
index c18a1a5929a..6cc1af1e4b6 100644
--- a/gnu/packages/python-science.scm
+++ b/gnu/packages/python-science.scm
@@ -103,7 +103,6 @@
   #:use-module (gnu packages python-xyz)
   #:use-module (gnu packages qt)
   #:use-module (gnu packages rust)
-  #:use-module (gnu packages rust-apps)
   #:use-module (gnu packages serialization)
   #:use-module (gnu packages simulation)
   #:use-module (gnu packages sphinx)