bootstrap: don't use rayon for sysinfo

It's looks overkill to use rayon to collect cpu usage

src/bootstrap/Cargo.lock

@@ -236,12 +236,6 @@ dependencies = [
  "crypto-common",
 ]
 
-[[package]]
-name = "either"
-version = "1.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
-
 [[package]]
 name = "errno"
 version = "0.3.8"
@@ -448,26 +442,6 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "rayon"
-version = "1.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c27db03db7734835b3f53954b534c91069375ce6ccaa2e065441e07d9b6cdb1"
-dependencies = [
- "either",
- "rayon-core",
-]
-
-[[package]]
-name = "rayon-core"
-version = "1.12.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ce3fb6ad83f861aac485e76e1985cd109d9a3713802152be56c3b1f0e0658ed"
-dependencies = [
- "crossbeam-deque",
- "crossbeam-utils",
-]
-
 [[package]]
 name = "redox_syscall"
 version = "0.4.1"
@@ -598,7 +572,6 @@ dependencies = [
  "libc",
  "ntapi",
  "once_cell",
- "rayon",
  "windows",
 ]
 

src/bootstrap/Cargo.toml

@@ -64,7 +64,7 @@ walkdir = "2.4"
 xz2 = "0.1"
 
 # Dependencies needed by the build-metrics feature
-sysinfo = { version = "0.30", optional = true }
+sysinfo = { version = "0.30", default-features = false, optional = true }
 
 [target.'cfg(windows)'.dependencies.junction]
 version = "1.0.0"