skip toolchain cache on windows

Author: Aderinom

dist/index.js

@@ -45100,6 +45100,7 @@ const child_process_1 = __nccwpck_require__(35317);
 const fs_1 = __nccwpck_require__(79896);
 const promises_1 = __nccwpck_require__(91943);
 const path = tslib_1.__importStar(__nccwpck_require__(16928));
+const process_1 = __nccwpck_require__(932);
 const cache_1 = __nccwpck_require__(26619);
 const cargo_1 = __nccwpck_require__(21253);
 const lib_1 = __nccwpck_require__(71374);
@@ -45194,7 +45195,11 @@ async function prepareToolchain(startTime, toolchain, additionalComponents = [],
         return hadToInstall;
     };
     await core.group(`Preparing toolchain ${toolchain}: ${(0, lib_1.timeSinceStart)(startTime)}`, async () => {
-        const cachePrefixFinal = cachePrefix == 'no-cache' ? undefined : cachePrefix;
+        let cachePrefixFinal = cachePrefix == 'no-cache' ? undefined : cachePrefix;
+        if (process_1.platform === 'win32') {
+            // It's faster to install without caching on Windows
+            cachePrefixFinal = undefined;
+        }
         const hostTriple = await getHostTriple();
         const toolchains = await listToolchains();
         const toolchainPath = path.join(cargo_1.Cargo.rustupHome(), 'toolchains', `${toolchain}-${hostTriple}`);

src/rustup.ts

@@ -5,6 +5,7 @@ import { execSync } from 'child_process';
 import { existsSync } from 'fs';
 import { readdir } from 'fs/promises';
 import * as path from 'path';
+import { platform } from 'process';
 import { generateCacheKey, restoreFromCache } from './cache';
 import { Cargo } from './cargo';
 import { timeSinceStart } from './lib';
@@ -130,9 +131,14 @@ export async function prepareToolchain(
   await core.group(
     `Preparing toolchain ${toolchain}: ${timeSinceStart(startTime)}`,
     async () => {
-      const cachePrefixFinal =
+      let cachePrefixFinal =
         cachePrefix == 'no-cache' ? undefined : cachePrefix;
 
+      if (platform === 'win32') {
+        // It's faster to install without caching on Windows
+        cachePrefixFinal = undefined;
+      }
+
       const hostTriple = await getHostTriple();
       const toolchains = await listToolchains();
       const toolchainPath = path.join(