Merge pull request 'Use only oxalica/rust-overlay toolchain and not nixpkgs' (#710) from oxalica-toolchain-only into main

Reviewed-on: https://git.deuxfleurs.fr/Deuxfleurs/garage/pulls/710

1 files changed, 1 insertions, 22 deletions

diff --git a/nix/compile.nix b/nix/compile.nix
index c51188fe..1e712710 100644
--- a/nix/compile.nix
+++ b/nix/compile.nix
@@ -19,30 +19,9 @@ let
       overlays = [ cargo2nixOverlay ];
     };
 
-  /* Cargo2nix is built for rustOverlay which installs Rust from Mozilla releases.
-     This is fine for 64-bit platforms, but for 32-bit platforms, we need our own Rust
-     to avoid incompatibilities with time_t between different versions of musl
-     (>= 1.2.0 shipped by NixOS, < 1.2.0 with which rustc was built), which lead to compilation breakage.
-     So we want a Rust release that is bound to our Nix repository to avoid these problems.
-     See here for more info: https://musl.libc.org/time64.html
-     Because Cargo2nix does not support the Rust environment shipped by NixOS,
-     we emulate the structure of the Rust object created by rustOverlay.
-     In practise, rustOverlay ships rustc+cargo in a single derivation while
-     NixOS ships them in separate ones. We reunite them with symlinkJoin.
-  */
-  toolchainOptions = if target == null || target == "x86_64-unknown-linux-musl"
-  || target == "aarch64-unknown-linux-musl" then {
+  toolchainOptions = {
     rustVersion = "1.73.0";
     extraRustComponents = [ "clippy" ];
-  } else {
-    rustToolchain = pkgs.symlinkJoin {
-      name = "rust-static-toolchain-${target}";
-      paths = [
-        pkgs.rustPlatform.rust.cargo
-        pkgs.rustPlatform.rust.rustc
-        # clippy not needed, it only runs on amd64
-      ];
-    };
   };
 
   buildEnv = (drv: