cargo.inc: switch to cargo_util.bbclass

This does all the fetching through bitbake which allows it to be built
correctly in firewalled environments.

recipes-devtools/cargo/cargo.inc

@@ -1,6 +1,4 @@
-INHIBIT_CARGO_DEP = "1"
-
-inherit cargo
+inherit cargo_util
 inherit patch
 inherit rust-installer
 
@@ -11,8 +9,60 @@ LICENSE = "MIT | Apache-2.0"
 
 DEPENDS = "openssl zlib libgit2 curl ca-certificates libssh2"
 
+CARGO_INDEX_COMMIT = "6127fc24b0b6fe73fe4d339817fbf000b9a798a2"
+
 SRC_URI = "\
 	http://static-rust-lang-org.s3.amazonaws.com/cargo-dist/${CARGO_SNAPSHOT} \
+	crate://crates.io/advapi32-sys/0.1.2 \
+	crate://crates.io/bufstream/0.1.1 \
+	crate://crates.io/crossbeam/0.2.8 \
+	crate://crates.io/docopt/0.6.78 \
+	crate://crates.io/env_logger/0.3.2 \
+	crate://crates.io/filetime/0.1.10 \
+	crate://crates.io/flate2/0.2.13 \
+	crate://crates.io/fs2/0.2.3 \
+	crate://crates.io/glob/0.2.11 \
+	crate://crates.io/hamcrest/0.1.0 \
+	crate://crates.io/kernel32-sys/0.2.1 \
+	crate://crates.io/libc/0.2.8 \
+	crate://crates.io/log/0.3.5 \
+	crate://crates.io/num_cpus/0.2.11 \
+	crate://crates.io/regex/0.1.58 \
+	crate://crates.io/rustc-serialize/0.3.18 \
+	crate://crates.io/tar/0.4.5 \
+	crate://crates.io/tempdir/0.3.4 \
+	crate://crates.io/term/0.4.4 \
+	crate://crates.io/toml/0.1.28 \
+	crate://crates.io/url/1.1.0 \
+	crate://crates.io/winapi/0.2.6 \
+	crate://crates.io/semver/0.2.3 \
+	crate://crates.io/regex-syntax/0.3.0 \
+	crate://crates.io/utf8-ranges/0.1.3 \
+	crate://crates.io/gcc/0.3.26 \
+	crate://crates.io/unicode-normalization/0.1.2 \
+	crate://crates.io/libz-sys/1.0.2 \
+	crate://crates.io/rand/0.3.14 \
+	crate://crates.io/user32-sys/0.1.2 \
+	crate://crates.io/idna/0.1.0 \
+	crate://crates.io/strsim/0.3.0 \
+	crate://crates.io/matches/0.1.2 \
+	crate://crates.io/cmake/0.1.16 \
+	crate://crates.io/gdi32-sys/0.1.1 \
+	crate://crates.io/bitflags/0.1.1 \
+	crate://crates.io/unicode-bidi/0.2.3 \
+	crate://crates.io/pkg-config/0.3.8 \
+	crate://crates.io/winapi-build/0.1.1 \
+	crate://crates.io/memchr/0.1.10 \
+	crate://crates.io/pnacl-build-helper/1.4.10 \
+	crate://crates.io/nom/1.2.2 \
+	crate://crates.io/num/0.1.31 \
+	crate://crates.io/uuid/0.2.3 \
+	crate://crates.io/aho-corasick/0.5.1 \
+	crate://crates.io/libressl-pnacl-sys/2.1.6 \
+	crate://crates.io/miniz-sys/0.1.7 \
+	crate://crates.io/openssl-sys/0.7.8 \
+	crate://crates.io/url/0.5.10 \
+	crate-index://crates.io/${CARGO_INDEX_COMMIT} \
 "
 
 B = "${S}"
@@ -44,9 +94,7 @@ do_configure () {
 		${EXTRA_OECONF} \
 		|| die "Could not configure cargo"
 
-	# cargo downloads a cargo snapshot to build itself using cargo, we need
-	# to override it's arch info.
-	cargo_do_configure
+	cargo_util_do_configure
 }
 
 do_compile () {