fix build error

Fix-build-with-rust-nightly.patch

@@ -0,0 +1,57 @@
+From 99c71d0db95b3626552a1375d5dfba22dc82ebfd Mon Sep 17 00:00:00 2001
+From: lingsheng <lingsheng@huawei.com>
+Date: Fri, 30 Apr 2021 17:11:51 +0800
+Subject: [PATCH] Fix build with rust nightly
+
+---
+ .cargo/config.in | 2 +-
+ Cargo.lock       | 2 +-
+ Cargo.toml       | 4 ++--
+ 3 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/.cargo/config.in b/.cargo/config.in
+index a40e667b5a..c95e6e016b 100644
+--- a/.cargo/config.in
++++ b/.cargo/config.in
+@@ -3,9 +3,9 @@
+ # Please do not edit.
+ 
+ [source."https://github.com/shravanrn/nix/"]
+-branch = "r0.13.1"
+ git = "https://github.com/shravanrn/nix/"
+ replace-with = "vendored-sources"
++rev = "4af6c367603869a30fddb5ffb0aba2b9477ba92e"
+ 
+ [source."https://github.com/mozilla/rkv"]
+ git = "https://github.com/mozilla/rkv"
+diff --git a/Cargo.lock b/Cargo.lock
+index 0b61796d7d..e97e8d080b 100644
+--- a/Cargo.lock
++++ b/Cargo.lock
+@@ -3196,7 +3196,7 @@ dependencies = [
+ [[package]]
+ name = "nix"
+ version = "0.13.1"
+-source = "git+https://github.com/shravanrn/nix/?branch=r0.13.1#4af6c367603869a30fddb5ffb0aba2b9477ba92e"
++source = "git+https://github.com/shravanrn/nix/?rev=4af6c367603869a30fddb5ffb0aba2b9477ba92e#4af6c367603869a30fddb5ffb0aba2b9477ba92e"
+ dependencies = [
+  "bitflags",
+  "cc",
+diff --git a/Cargo.toml b/Cargo.toml
+index 0b7ec008b8..910a62ee57 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -67,8 +67,8 @@ panic = "abort"
+ libudev-sys = { path = "dom/webauthn/libudev-sys" }
+ packed_simd = { git = "https://github.com/hsivonen/packed_simd", rev="3541e3818fdc7c2a24f87e3459151a4ce955a67a" }
+ rlbox_lucet_sandbox = { git = "https://github.com/PLSysSec/rlbox_lucet_sandbox/", rev="d510da5999a744c563b0acd18056069d1698273f" }
+-nix = { git = "https://github.com/shravanrn/nix/", branch = "r0.13.1", rev="4af6c367603869a30fddb5ffb0aba2b9477ba92e" }
+-spirv_cross = { git = "https://github.com/kvark/spirv_cross", branch = "wgpu3", rev = "20191ad2f370afd6d247edcb9ff9da32d3bedb9c" }
++nix = { git = "https://github.com/shravanrn/nix/", rev="4af6c367603869a30fddb5ffb0aba2b9477ba92e" }
++spirv_cross = { git = "https://github.com/kvark/spirv_cross", branch = "wgpu3" }
+ # failure's backtrace feature might break our builds, see bug 1608157.
+ failure = { git = "https://github.com/badboy/failure", rev = "64af847bc5fdcb6d2438bec8a6030812a80519a5" }
+ failure_derive = { git = "https://github.com/badboy/failure", rev = "64af847bc5fdcb6d2438bec8a6030812a80519a5" }
+-- 
+2.23.0
+

mozjs78.spec

@@ -2,7 +2,7 @@
 
 Name:           mozjs%{major}
 Version:        78.4.0
-Release:        1
+Release:        2
 Summary:        SpiderMonkey JavaScript library
 License:        MPLv2.0 and MPLv1.1 and BSD and GPLv2+ and GPLv3+ and LGPLv2+ and AFL and ASL 2.0
 URL:            https://developer.mozilla.org/en-US/docs/Mozilla/Projects/SpiderMonkey
@@ -20,6 +20,8 @@ Patch06:        emitter.patch
 Patch07:        init_patch.patch
 # TODO: Check with mozilla for cause of these fails and re-enable spidermonkey compile time checks if needed
 Patch08:        spidermonkey_checks_disable.patch
+Patch09:        Update-syn-and-proc-macro2-so-that-Firefox-can-build-on-Rust-nightly-again.patch
+Patch10:        Fix-build-with-rust-nightly.patch
 
 BuildRequires:  autoconf213 cargo clang-devel gcc gcc-c++ perl-devel pkgconfig(libffi) pkgconfig(zlib) 
 BuildRequires:  python3-devel python3-six readline-devel zip nasm llvm llvm-devel icu rust
@@ -99,5 +101,11 @@ popd
 %doc js/src/README.html
 
 %changelog
+* Tue May 11 2021 zhanzhimin <zhanzhimin@huawei.com> - 78.4.0-2
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:fix build error caused by rust
+
 * Thu Nov 05 2020 chengguipeng <chengguipeng1@huawei.com> - 78.4.0-1
 - Package init