Update petgraph dep to 0.4.5

illicitonion · illicitonion · commit 7bb4dc86d794 · 2017-09-01T15:59:53.000+01:00
rust-lang/rust#42496 means that 0.4.4 no longer compiles with the most recently released rust toolchain. This was fixed in petgraph/petgraph#154 which is in 0.4.5.
diff --git a/src/python/pants/engine/native_engine_version b/src/python/pants/engine/native_engine_version
@@ -1 +1 @@
-7ffa912ffa6f260c22a1788c36974b3c4d3b635e
+27a5bba4e7fffd406e800ddce1c5800a9d497e22
diff --git a/src/rust/engine/Cargo.lock b/src/rust/engine/Cargo.lock
diff --git a/src/rust/engine/Cargo.toml b/src/rust/engine/Cargo.toml
@@ -25,7 +25,7 @@ glob = "0.2.11"
 ignore = "0.1.8"
 lazy_static = "0.2.2"
 ordermap = "0.2.8"
-petgraph = "0.4.4"
+petgraph = "0.4.5"
 # TODO: See https://github.com/alexcrichton/tar-rs/pull/107.
 tar = { git = "https://github.com/stuhood/tar-rs", rev = "893a96e89c84f44f60f0e2398d27ae3267d196f8" }
 tempdir = "0.3.5"

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-7ffa912ffa6f260c22a1788c36974b3c4d3b635e`
	`1`	`+27a5bba4e7fffd406e800ddce1c5800a9d497e22`