Update Cargo, books

Cargo.lock

@@ -272,7 +272,7 @@ dependencies = [
 
 [[package]]
 name = "cargo"
-version = "0.41.0"
+version = "0.42.0"
 dependencies = [
  "atty",
  "bytesize",
@@ -282,7 +282,7 @@ dependencies = [
  "clap",
  "core-foundation",
  "crates-io",
- "crossbeam-utils 0.6.5",
+ "crossbeam-utils 0.7.0",
  "crypto-hash",
  "curl",
  "curl-sys",
@@ -619,7 +619,7 @@ checksum = "e7ca8a5221364ef15ce201e8ed2f609fc312682a8f4e0e3d4aa5879764e0fa3b"
 
 [[package]]
 name = "crates-io"
-version = "0.29.0"
+version = "0.30.0"
 dependencies = [
  "curl",
  "failure",
@@ -745,6 +745,17 @@ dependencies = [
  "lazy_static 1.3.0",
 ]
 
+[[package]]
+name = "crossbeam-utils"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce446db02cdc3165b94ae73111e570793400d0794e46125cc4056c81cbb039f4"
+dependencies = [
+ "autocfg",
+ "cfg-if",
+ "lazy_static 1.3.0",
+]
+
 [[package]]
 name = "crypto-hash"
 version = "0.3.1"

src/doc/book

@@ -1 +1 @@
-Subproject commit 28fa3d15b0bc67ea5e79eeff2198e4277fc61baf
+Subproject commit e79dd62aa63396714278d484d91d48826737f47f

src/doc/edition-guide

@@ -1 +1 @@
-Subproject commit e58bc4ca104e890ac56af846877c874c432a64b5
+Subproject commit f553fb26c60c4623ea88a1cfe731eafe0643ce34

src/doc/nomicon

@@ -1 +1 @@
-Subproject commit 5004ad30d69f93553ceef74439fea2159d1f769e
+Subproject commit 58e36e0e08dec5a379ac568827c058e25990d6cd

src/doc/reference

@@ -1 +1 @@
-Subproject commit 4b21b646669e0af49fae7cae301898dc4bfaa1f0
+Subproject commit 45558c464fb458affbcdcb34323946da45c8a117

src/doc/rust-by-example

@@ -1 +1 @@
-Subproject commit f3197ddf2abab9abdbc029def8164f4a748b0d91
+Subproject commit dcee312c66267eb5a2f6f1561354003950e29105

src/tools/cargo

@@ -1 +1 @@
-Subproject commit 5da4b4d47963868d9878480197581ccbbdaece74
+Subproject commit 8280633db680dec5bfe1de25156d1a1d53e6d190