[rust] Rust toolchain roll

Change-Id: Iaa52562fd188850c734fddf97e431db41de0d2a7

fuchsia.ensure

diff --git a/fuchsia.ensure b/fuchsia.ensure
index a9f824a..9ca9cbe 100644
--- a/fuchsia.ensure
+++ b/fuchsia.ensure
@@ -41,7 +41,7 @@
 
 # Rust
 @Subdir rust
-fuchsia/rust/${platform} git_revision:7ad470c0a64ed0801708cee6657e82be097a29ac
+fuchsia/rust/${platform} git_revision:e2f221c75932de7a29845c8d6f1f73536ad00c41
 
 # QEMU
 @Subdir qemu

fuchsia.versions

diff --git a/fuchsia.versions b/fuchsia.versions
index a0ad17b..a41bb27 100644
--- a/fuchsia.versions
+++ b/fuchsia.versions
@@ -26,12 +26,12 @@
 	2d3358ae9a569b2d4a474f498b32b202a152134f
 
 fuchsia/rust/linux-amd64
-	git_revision:7ad470c0a64ed0801708cee6657e82be097a29ac
-	epYr2tmslZ5lEasQV0gbh5hhiExeCQ4H9u1z3ObNNaAC
+	git_revision:e2f221c75932de7a29845c8d6f1f73536ad00c41
+	nHSOYXGJpPQu02t8QNruXF2YE9ZoQ9Lb4st1ZCGDAHsC
 
 fuchsia/rust/mac-amd64
-	git_revision:7ad470c0a64ed0801708cee6657e82be097a29ac
-	ueXXyXVOgHSpa-NcxdN8S3p5GOOic83-zb5ISt-bgBUC
+	git_revision:e2f221c75932de7a29845c8d6f1f73536ad00c41
+	5Sg7xBf_NpxxAs2PoDnOBZ1uF5JdeIMrfNqHHeSB45EC
 
 fuchsia/sysroot/linux-amd64
 	git_revision:a96053c799a0f1ad0b7e8ab8199edbfa18adcbb6