[rust] Roll Rust toolchain

Test: compiled
Change-Id: Ic22adde6f307fe129975b8be52220de6cff3ade8
diff --git a/fuchsia.ensure b/fuchsia.ensure
index 8f72f83..58cf133 100644
--- a/fuchsia.ensure
+++ b/fuchsia.ensure
@@ -50,7 +50,7 @@
 
 # Rust
 @Subdir rust
-fuchsia/rust/${platform} git_revision:4bd4e4130ed531a644263db26bf8461704215c77
+fuchsia/rust/${platform} git_revision:1cf82fd9c0e8eb9ff29d4165f9824c483bd72f7d
 
 # Swift
 @Subdir swift
diff --git a/fuchsia.versions b/fuchsia.versions
index 96e2eee..bb00b06 100644
--- a/fuchsia.versions
+++ b/fuchsia.versions
@@ -26,12 +26,12 @@
 	2d3358ae9a569b2d4a474f498b32b202a152134f
 
 fuchsia/rust/linux-amd64
-	git_revision:4bd4e4130ed531a644263db26bf8461704215c77
-	_JR9mK26K4gasJ1A7v4Q6rOC-juFLD6T_Ku-zkIgaF0C
+	git_revision:1cf82fd9c0e8eb9ff29d4165f9824c483bd72f7d
+	cpDihM9eZfJzss5c9PNHc2pDzAb1U7m4i99sP1Or7XUC
 
 fuchsia/rust/mac-amd64
-	git_revision:4bd4e4130ed531a644263db26bf8461704215c77
-	ts21AaYMglYQ7MfEe_ERv4Aj7vanqRXrqzr8V6EXdxwC
+	git_revision:1cf82fd9c0e8eb9ff29d4165f9824c483bd72f7d
+	f98MkY_QMF1Gr-HfBd13z6s1uikMaU06_sN7hqtSgWMC
 
 fuchsia/swift/linux-amd64
 	git_revision:d4943f3da1ae8b69fba21fa359b62f25d74a6b14