[trybuild] Update dep to 1.0.85 (#463)

Author: joshlf

Cargo.toml

@@ -65,6 +65,6 @@ testutil = { path = "testutil" }
 # and the version used in CI are guaranteed to be the same. Future versions
 # sometimes change the output format slightly, so a version mismatch can cause
 # CI test failures.
-trybuild = "=1.0.80"
+trybuild = { version = "=1.0.85", features = ["diff"] }
 # In tests, unlike in production, zerocopy-derive is not optional
 zerocopy-derive = { version = "=0.7.7", path = "zerocopy-derive" }

zerocopy-derive/Cargo.toml

@@ -29,5 +29,5 @@ testutil = { path = "../testutil" }
 # and the version used in CI are guaranteed to be the same. Future versions
 # sometimes change the output format slightly, so a version mismatch can cause
 # CI test failures.
-trybuild = "=1.0.80"
+trybuild = { version = "=1.0.85", features = ["diff"] }
 zerocopy = { path = "../", features = ["default", "derive"] }