gnu: Build all Rust packages using the latest rustc.

The older Rusts are made private variables; they shouldn't be used by users as
they are not tested and are only built at stage 1, which makes them unsuitable
to compile Rust applications.

* gnu/packages/crates-io.scm (rust-cargo-0.53)[arguments]: Remove #:rust
argument.
(rust-cxx-1, rust-cxx-build-1, rust-cxx-gen-0.7): Likewise.
* gnu/packages/crates-io.scm
(rust-cxx-gen-0.7, rust-cxxbridge-macro-1, rust-postgres-0.19): Likewise.
(rust-rust-decimal-1, rust-sized-chunks-0.6, rust-socket2-0.4): Likewise.
(rust-tokio-postgres-0.7, rust-im-rc-15): Likewise.
* gnu/packages/gnome.scm (librsvg): Likewise.
* gnu/packages/gnuzilla.scm (mozjs-78): Likewise.
* gnu/packages/rust-apps.scm
(hyperfine, tectonic rust-analyzer, rust-cargo-c): Likewise.
* gnu/packages/shells.scm (nushell): Likewise.
* gnu/packages/syndication.scm (newsboat): Likewise.
* gnu/packages/rust.scm: (rust-1.39, rust-1.40, rust-1.41, rust-1.42)
(rust-1.43, rust-1.44, rust-1.45, rust-1.46, rust-1.47, rust-1.48, rust-1.49)
(rust-1.50, rust-1.51, rust-1.52, rust-1.53, rust-1.54): Make variables private.

1 files changed, 2 insertions, 2 deletions

diff --git a/gnu/packages/gnuzilla.scm b/gnu/packages/gnuzilla.scm
index 88ba14b01f..b96f59409e 100644
--- a/gnu/packages/gnuzilla.scm
+++ b/gnu/packages/gnuzilla.scm
@@ -574,8 +574,8 @@ in C/C++.")
        ("perl" ,perl)
        ("pkg-config" ,pkg-config)
        ("python" ,python-3)
-       ("rust" ,rust-1.41)
-       ("cargo" ,rust-1.41 "cargo")))
+       ("rust" ,rust)
+       ("cargo" ,rust "cargo")))
     (inputs
      `(("icu4c" ,icu4c)
        ("readline" ,readline)