I don't think this build has ever worked. It was added with `continue-on-error: true` right from the beginning in https://github.com/serde-rs/serde/commit/5534bf4df13ae00a82aef0db0ee62cb17b33b892 That's been that way since the Travis CI days: https://github.com/serde-rs/serde/commit/820107d15e6ffbfb0f7257653f8889cb8f2dc452 All recent builds have been failing with: error: linking with `emcc` failed: exit status: 1 | = note: LC_ALL="C" PATH="/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin:/home/runner/.local/share/cargo-web/emscripten/x86_64-unknown-linux-gnu/emscripten:/opt/hostedtoolcache/node/9.11.2/x64/bin:/home/runner/.local/bin:/opt/pipx_bin:/home/runner/.cargo/bin:/home/runner/.config/composer/vendor/bin:/usr/local/.ghcup/bin:/home/runner/.dotnet/tools:/snap/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" VSLANG="1033" "emcc" "-s" "EXPORTED_FUNCTIONS=[\"_main\"]" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.0.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.1.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.10.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.11.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.12.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.13.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.14.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.15.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.2.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.3.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.4.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.5.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.6.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.7.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.8.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.9.rcgu.o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.223vlrckyyi933ss.rcgu.o" "-L" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps" "-L" "/home/runner/work/serde/serde/target/debug/deps" "-L" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libtest-703577d2eeee5197.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libgetopts-f807ec4fb7e4e629.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libunicode_width-2225b28b6ec8c285.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/librustc_std_workspace_std-dd938caf8b49e472.rlib" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/libserde_test-001fc721a1bcc02c.rlib" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/libserde-37bd5f92207a3513.rlib" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/libfnv-0de3dbe391b66872.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libstd-1c8c16cd3fa53a03.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libpanic_unwind-867e5756a7547a66.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/librustc_demangle-da6ab903fe654069.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libstd_detect-835d918597331757.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libhashbrown-4f9cd32598223563.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libminiz_oxide-d0c628945bd9d914.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libadler-7a585625ea89f61a.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/librustc_std_workspace_alloc-aaebf0a065426c59.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libunwind-72125d94c0136926.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libcfg_if-8ab4a22614237c52.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/liblibc-f05314f278f4c449.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/liballoc-2163dfc98c888d9f.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/librustc_std_workspace_core-dc02b3faf448d54f.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libcore-f5d84c0c974a0cba.rlib" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib/libcompiler_builtins-556bf6604acc2e72.rlib" "-l" "c" "-s" "DISABLE_EXCEPTION_CATCHING=0" "-L" "/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/asmjs-unknown-emscripten/lib" "-o" "/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.js" "-O0" "-g" "-s" "NO_EXIT_RUNTIME=0" "-s" "ALLOW_MEMORY_GROWTH=0" "-sABORTING_MALLOC=0" "-Wl,--fatal-warnings" "-sWASM=0" "--memory-init-file" "0" = note: /home/runner/.local/share/cargo-web/emscripten/x86_64-unknown-linux-gnu/emscripten/emcc.py:812: SyntaxWarning: "is not" with a literal. Did you mean "!="? newargs = [arg for arg in newargs if arg is not ''] /home/runner/.local/share/cargo-web/emscripten/x86_64-unknown-linux-gnu/emscripten/emcc.py:923: SyntaxWarning: "is not" with a literal. Did you mean "!="? newargs = [a for a in newargs if a is not ''] INFO:root:generating system asset: is_vanilla.txt... (this will be cached in "/home/runner/.emscripten_cache/is_vanilla.txt" for subsequent builds) INFO:root: - ok INFO:root:(Emscripten: Running sanity checks) WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.0.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.1.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.10.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.11.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.12.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.13.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.14.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.15.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.2.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.3.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.4.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.5.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.6.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.7.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.8.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.test_ser.946ae949-cgu.9.rcgu.o is not valid LLVM bitcode WARNING:root:/home/runner/work/serde/serde/target/asmjs-unknown-emscripten/debug/deps/test_ser-e9fdefc835cae810.223vlrckyyi933ss.rcgu.o is not valid LLVM bitcode WARNING:root:retrieving port: binaryen from https://github.com/WebAssembly/binaryen/archive/version_54.zip WARNING:root:unpacking port: binaryen INFO:root:generating port: binaryen_tag_version_54.txt... (this will be cached in "/home/runner/.emscripten_cache/asmjs/binaryen_tag_version_54.txt" for subsequent builds) INFO:root:building port: binaryen CMake Deprecation Warning at CMakeLists.txt:2 (CMAKE_MINIMUM_REQUIRED): Compatibility with CMake < 2.8.12 will be removed from a future version of CMake. Update the VERSION argument <min> value or use a ...<max> suffix to tell CMake that the project does not need compatibility with older versions. INFO:root: - ok multiprocessing.pool.RemoteTraceback: """ Traceback (most recent call last): File "/usr/lib/python3.10/multiprocessing/pool.py", line 125, in worker result = (True, func(*args, **kwds)) File "/usr/lib/python3.10/multiprocessing/pool.py", line 48, in mapstar return list(map(*args)) File "/home/runner/.local/share/cargo-web/emscripten/x86_64-unknown-linux-gnu/emscripten/tools/shared.py", line 1425, in g_llvm_nm_uncached return Building.llvm_nm_uncached(filename) File "/home/runner/.local/share/cargo-web/emscripten/x86_64-unknown-linux-gnu/emscripten/tools/shared.py", line 2226, in llvm_nm_uncached proc = run_process([LLVM_NM, filename], stdout=stdout, stderr=stderr, check=False) File "/home/runner/.local/share/cargo-web/emscripten/x86_64-unknown-linux-gnu/emscripten/tools/shared.py", line 164, in run_process return run_base(cmd, universal_newlines=universal_newlines, check=check, *args, **kw) File "/home/runner/.local/share/cargo-web/emscripten/x86_64-unknown-linux-gnu/emscripten/tools/shared.py", line 150, in run_base return subprocess.run(cmd, check=check, input=input, *args, **kw) File "/usr/lib/python3.10/subprocess.py", line 503, in run stdout, stderr = process.communicate(input, timeout=timeout) File "/usr/lib/python3.10/subprocess.py", line 1152, in communicate stdout, stderr = self._communicate(input, endtime, timeout) File "/usr/lib/python3.10/subprocess.py", line 2045, in _communicate stderr = self._translate_newlines(stderr, File "/usr/lib/python3.10/subprocess.py", line 1029, in _translate_newlines data = data.decode(encoding, errors) UnicodeDecodeError: 'utf-8' codec can't decode byte 0xab in position 4530: invalid start byte """ The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/home/runner/.local/share/cargo-web/emscripten/x86_64-unknown-linux-gnu/emscripten/emcc.py", line 3091, in <module> sys.exit(run()) File "/home/runner/.local/share/cargo-web/emscripten/x86_64-unknown-linux-gnu/emscripten/emcc.py", line 1647, in run extra_files_to_link += system_libs.calculate([f for _, f in sorted(temp_files)] + extra_files_to_link, in_temp, stdout_=None, stderr_=None, forced=forced_stdlibs) File "/home/runner/.local/share/cargo-web/emscripten/x86_64-unknown-linux-gnu/emscripten/tools/system_libs.py", line 544, in calculate symbolses = shared.Building.parallel_llvm_nm([os.path.abspath(t) for t in temp_files]) File "/home/runner/.local/share/cargo-web/emscripten/x86_64-unknown-linux-gnu/emscripten/tools/shared.py", line 1841, in parallel_llvm_nm object_contents = pool.map(g_llvm_nm_uncached, files) File "/usr/lib/python3.10/multiprocessing/pool.py", line 367, in map return self._map_async(func, iterable, mapstar, chunksize).get() File "/usr/lib/python3.10/multiprocessing/pool.py", line 774, in get raise self._value UnicodeDecodeError: 'utf-8' codec can't decode byte 0xab in position 4530: invalid start byte
Serde

Serde is a framework for serializing and deserializing Rust data structures efficiently and generically.
You may be looking for:
- An overview of Serde
- Data formats supported by Serde
- Setting up
#[derive(Serialize, Deserialize)] - Examples
- API documentation
- Release notes
Serde in action
Click to show Cargo.toml. Run this code in the playground.
[dependencies]
# The core APIs, including the Serialize and Deserialize traits. Always
# required when using Serde. The "derive" feature is only required when
# using #[derive(Serialize, Deserialize)] to make Serde work with structs
# and enums defined in your crate.
serde = { version = "1.0", features = ["derive"] }
# Each data format lives in its own crate; the sample code below uses JSON
# but you may be using a different one.
serde_json = "1.0"
use serde::{Serialize, Deserialize};
#[derive(Serialize, Deserialize, Debug)]
struct Point {
x: i32,
y: i32,
}
fn main() {
let point = Point { x: 1, y: 2 };
// Convert the Point to a JSON string.
let serialized = serde_json::to_string(&point).unwrap();
// Prints serialized = {"x":1,"y":2}
println!("serialized = {}", serialized);
// Convert the JSON string back to a Point.
let deserialized: Point = serde_json::from_str(&serialized).unwrap();
// Prints deserialized = Point { x: 1, y: 2 }
println!("deserialized = {:?}", deserialized);
}
Getting help
Serde is one of the most widely used Rust libraries so any place that Rustaceans congregate will be able to help you out. For chat, consider trying the #rust-questions or #rust-beginners channels of the unofficial community Discord (invite: https://discord.gg/rust-lang-community), the #rust-usage or #beginners channels of the official Rust Project Discord (invite: https://discord.gg/rust-lang), or the #general stream in Zulip. For asynchronous, consider the [rust] tag on StackOverflow, the /r/rust subreddit which has a pinned weekly easy questions post, or the Rust Discourse forum. It's acceptable to file a support issue in this repo but they tend not to get as many eyes as any of the above and may get closed without a response after some time.
License
Licensed under either of Apache License, Version 2.0 or MIT license at your option.Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in Serde by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.