Backed out 2 changesets (bug 1529117) for build bustage

Backed out changeset 82cfcc2f5fac (bug 1529117)
Backed out changeset d9fd8225a95f (bug 1529117)

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/d819234834aad12e3388ceb0b09dfb6c8cdd3da9

Author: dgluca

Cargo.lock

@@ -13,4 +13,4 @@ debug = true
 panic = "abort"
 
 [patch.crates-io]
-serde_derive = { git = "https://github.com/servo/serde", branch = "deserialize_from_enums10", feature="deserialize_in_place" }
+serde_derive = { git = "https://github.com/servo/serde", branch = "deserialize_from_enums9", feature="deserialize_in_place" }

Cargo.toml

@@ -21,8 +21,8 @@ derive_more = "0.13"
 ipc-channel = {version = "0.11.0", optional = true}
 euclid = { version = "0.19.5", features = ["serde"] }
 malloc_size_of_derive = "0.1"
-serde = { version = "=1.0.88", features = ["rc"] }
-serde_derive = { version = "=1.0.88", features = ["deserialize_in_place"] }
+serde = { version = "=1.0.80", features = ["rc"] }
+serde_derive = { version = "=1.0.80", features = ["deserialize_in_place"] }
 serde_bytes = "0.10"
 time = "0.1"
 wr_malloc_size_of = { version = "0.0.1", path = "../wr_malloc_size_of" }