Update cargo
diff --git a/Cargo.lock b/Cargo.lock
index 4c02b21..73ffd3e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -326,7 +326,7 @@
 
 [[package]]
 name = "cargo"
-version = "0.60.0"
+version = "0.61.0"
 dependencies = [
  "anyhow",
  "atty",
@@ -335,7 +335,7 @@
  "cargo-test-macro",
  "cargo-test-support",
  "cargo-util",
- "clap",
+ "clap 3.0.10",
  "crates-io",
  "crossbeam-utils",
  "curl",
@@ -615,14 +615,29 @@
  "ansi_term 0.12.1",
  "atty",
  "bitflags",
- "strsim",
- "textwrap",
+ "strsim 0.8.0",
+ "textwrap 0.11.0",
  "unicode-width",
  "vec_map",
  "yaml-rust 0.3.5",
 ]
 
 [[package]]
+name = "clap"
+version = "3.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a30c3bf9ff12dfe5dae53f0a96e0febcd18420d1c0e7fad77796d9d5c4b5375"
+dependencies = [
+ "atty",
+ "bitflags",
+ "indexmap",
+ "os_str_bytes",
+ "strsim 0.10.0",
+ "termcolor",
+ "textwrap 0.14.2",
+]
+
+[[package]]
 name = "clippy"
 version = "0.1.60"
 dependencies = [
@@ -654,7 +669,7 @@
 dependencies = [
  "bytecount",
  "cargo_metadata 0.14.0",
- "clap",
+ "clap 2.34.0",
  "indoc",
  "itertools 0.10.1",
  "opener",
@@ -821,7 +836,7 @@
 
 [[package]]
 name = "crates-io"
-version = "0.33.1"
+version = "0.34.0"
 dependencies = [
  "anyhow",
  "curl",
@@ -1736,7 +1751,7 @@
 version = "0.0.0"
 dependencies = [
  "anyhow",
- "clap",
+ "clap 2.34.0",
  "flate2",
  "lazy_static",
  "num_cpus",
@@ -2175,7 +2190,7 @@
  "ammonia",
  "anyhow",
  "chrono",
- "clap",
+ "clap 2.34.0",
  "elasticlunr-rs",
  "env_logger 0.7.1",
  "handlebars",
@@ -2507,6 +2522,15 @@
 ]
 
 [[package]]
+name = "os_str_bytes"
+version = "6.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e22443d1643a904602595ba1cd8f7d896afe56d26712531c5ff73a15b2fbf64"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
 name = "output_vt100"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -2910,7 +2934,7 @@
 checksum = "b0b4b5faaf07040474e8af74a9e19ff167d5d204df5db5c5c765edecfb900358"
 dependencies = [
  "bitflags",
- "clap",
+ "clap 2.34.0",
  "derive_more",
  "env_logger 0.7.1",
  "humantime 2.0.1",
@@ -3258,7 +3282,7 @@
 name = "rustbook"
 version = "0.1.0"
 dependencies = [
- "clap",
+ "clap 2.34.0",
  "env_logger 0.7.1",
  "mdbook",
 ]
@@ -4874,12 +4898,18 @@
 checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 
 [[package]]
+name = "strsim"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+
+[[package]]
 name = "structopt"
 version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "40b9788f4202aa75c240ecc9c15c65185e6a39ccdeb0fd5d008b98825464c87c"
 dependencies = [
- "clap",
+ "clap 2.34.0",
  "lazy_static",
  "structopt-derive",
 ]
@@ -5051,6 +5081,12 @@
 ]
 
 [[package]]
+name = "textwrap"
+version = "0.14.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0066c8d12af8b5acd21e00547c3797fde4e8677254a7ee429176ccebbe93dd80"
+
+[[package]]
 name = "thiserror"
 version = "1.0.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"