Cargo: Remove num_cpus library. Ran update

Not needed since v0.6.0
Ran cargo update

Cargo.lock

@@ -31,9 +31,9 @@ dependencies = [
 
 [[package]]
 name = "assert_cmd"
-version = "1.0.5"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a88b6bd5df287567ffdf4ddf4d33060048e1068308e5f62d81c6f9824a045a48"
+checksum = "3d20831bd004dda4c7c372c19cdabff369f794a95e955b3f13fe460e3e1ae95f"
 dependencies = [
  "bstr",
  "doc-comment",
@@ -144,10 +144,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "difference"
-version = "2.0.0"
+name = "difflib"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "524cbf6897b527295dff137cec09ecf3a05f4fddffd7dfcd1585403449e74198"
+checksum = "6184e33543162437515c2e2b48714794e37845ec9851711914eec9d308f6ebe8"
 
 [[package]]
 name = "doc-comment"
@@ -163,7 +163,6 @@ dependencies = [
  "assert_cmd",
  "clap",
  "lscolors",
- "num_cpus",
  "rayon",
  "stfu8",
  "tempfile",
@@ -192,13 +191,22 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.18"
+version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "322f4de77956e22ed0e5032c359a0f1273f1f7f0d79bfa3b8ffbc730d7fbcc5c"
+checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
 dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69ddb889f9d0d08a67338271fa9b62996bc788c7796a5c18cf057420aaed5eaf"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -207,9 +215,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.97"
+version = "0.2.98"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12b8adadd720df158f4d70dfe7ccc6adb0472d7c55ca83445f6a5ab3e36f8fb6"
+checksum = "320cfe77175da3a483efed4bc0adc1968ca050b098ce4f2f1c13a56626128790"
 
 [[package]]
 name = "lscolors"
@@ -253,11 +261,12 @@ checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"
 
 [[package]]
 name = "predicates"
-version = "1.0.8"
+version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f49cfaf7fdaa3bfacc6fa3e7054e65148878354a5cfddcf661df4c851f8021df"
+checksum = "c6e46ca79eb4e21e2ec14430340c71250ab69332abf85521c95d3a8bc336aa76"
 dependencies = [
- "difference",
+ "difflib",
+ "itertools",
  "predicates-core",
 ]
 

Cargo.toml

@@ -24,7 +24,6 @@ path = "src/main.rs"
 ansi_term = "0.12"
 clap = { version = "=2.33", features = ["wrap_help"] }
 lscolors = "0.7"
-num_cpus = "1"
 terminal_size = "0.1"
 unicode-width = "0.1"
 rayon="1"