[bug#36676] [PATCH 0/3] cargo build system fixes

[Robert Vollmert]

Primarily this removes the build-side dependency on guile-json,
but fixes some bugs along the way.

Robert Vollmert (3):
  guix: cargo-build-system: Set CARGO_HOME early to fix build
  gnu: Update rust-proc-macro2 to 0.4.30 to fix tests
  guix: cargo-build-system: Use bundled json instead of guile-json

 gnu/packages/crates-io.scm        |  4 ++--
 guix/build-system/cargo.scm       |  2 +-
 guix/build/cargo-build-system.scm | 12 +++++-------
 3 files changed, 8 insertions(+), 10 deletions(-)

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2.20.1 (Apple Git-117)