Try to get tests working on 32 bits
Try to get tests working on 32 bits

geofft/nix-rust,nix-rust/nix,carllerche/nix-rust,carllerche/nix-rust,carllerche/nix-rust,geofft/nix-rust,asomers/nix,geofft/nix-rust,nix-rust/nix,asomers/nix