fix(rust): try rolling back to 1.87.0

Author: reo101

flake.nix

@@ -21,7 +21,7 @@
 
     rust-toolchain-for = system: fenix.packages.${system}.fromToolchainFile {
       file = ./rust-toolchain.toml;
-      sha256 = "sha256-Qxt8XAuaUR2OMdKbN4u8dBJOhSHxS+uS06Wl9+flVEk=";
+      sha256 = "sha256-KUm16pHj+cRedf8vxs/Hd2YWxpOrWZ7UOrwhILdSJBU=";
     };
   in {
     checks = forEachSystem (system: {

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.88.0"
+channel = "1.87.0"
 components = [ "rustc", "rust-analyzer", "rust-std", "cargo", "rustfmt", "rustc-dev", "llvm-tools", "llvm" ]