Input file has an unknown suffix, don't know what to do with it!

[craigmayhew]

Hello - I'm unable to debug this suffix error. I'm unsure if it is my code, a dependency, a missing config option or compile argument. What's the best way to find more information on this?

$ cargo rustc --target=wasm32-unknown-emscripten --release -- -C link-args="-s BINARYEN_ASYNC_COMPILATION=0" --verbose
   Compiling libc v0.2.65
   Compiling getrandom v0.1.13
   Compiling cfg-if v0.1.10
   Compiling md5 v0.7.0
   Compiling rand_core v0.5.1
   Compiling rand_hc v0.2.0
   Compiling rand v0.7.2
   Compiling md5recursion v0.1.0 (/home/user/github/golem-tasks/gwasm/md5-recursion)
error: linking with `emcc` failed: exit code: 1
  |
  = note: "emcc" "-s" "DISABLE_EXCEPTION_CATCHING=0" "-L" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.0.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.1.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.10.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.11.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.12.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.13.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.14.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.15.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.2.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.3.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.4.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.5.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.6.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.7.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.8.rcgu.o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.9.rcgu.o" "-o" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.js" "-s" "EXPORTED_FUNCTIONS=[\"_main\",\"_rust_eh_personality\"]" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.18c9pd5sipy13onm.rcgu.o" "-O3" "--memory-init-file" "0" "-g0" "-s" "DEFAULT_LIBRARY_FUNCS_TO_INCLUDE=[]" "-L" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps" "-L" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/release/deps" "-L" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-64275eb013e34348.rlib" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_hc-9d859162fdfbd51c.rlib" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_core-06817a7b5fe1def6.rlib" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libgetrandom-98c7e9978676a88e.rlib" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/liblibc-0f968fc7757ab433.rlib" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libcfg_if-e8d51f745108570b.rlib" "/home/user/github/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-79dbf0877ba4ccd9.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libstd-c3a1268b0ca58abc.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libpanic_unwind-df99b38c13845e6b.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libhashbrown-5fda646f3f7147a3.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/librustc_std_workspace_alloc-cab185f0e95eb268.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libbacktrace-d3b692abbef8a71e.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/librustc_demangle-1c6566ea50b74fdf.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libunwind-392f9aee3071b376.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libcfg_if-c650f0067a17f672.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/liblibc-5a609febbc798595.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/liballoc-2875889606754491.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/librustc_std_workspace_core-09b2dd65fc6b549e.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libcore-8d39f774f75d50c8.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libcompiler_builtins-f1ee5b04877823a0.rlib" "-l" "c" "-l" "c" "-s" "BINARYEN_ASYNC_COMPILATION=0" "-s" "BINARYEN=1" "-s" "ERROR_ON_UNDEFINED_SYMBOLS=1" "-s" "BINARYEN_TRAP_MODE=\'clamp\'"
  = note: ERROR    root: /home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib: Input file has an unknown suffix, don't know what to do with it!
 
error: aborting due to previous error
error: could not compile `md5recursion`.

[sbc100]

Interesting. That path only appears after -L on the command line so it shouldn't be trying to treat it as an input file.

Do you know exactly what version emscripten you are using?

[sbc100]

@tlively who deals with rust+emscripten

[craigmayhew]

apt has it as version 1.22.1-1build1
This was installed via sudo apt-get install emscripten
I also tried compiling from github master (on a second machine) and received the same error.

[sbc100]

I'm not sure how rust+emscripten works but I imagine the version of emscripten is embedded inside the rust toolchain itself, not the the one your system.

If you can test with and external version then the branch you want is origin/incoming.

[tlively]

@sbc100 no, rust just looks up emcc on the path to perform the final link. I believe this is bug with Emscripten in which the argument parsing logic is not smart enough to realize that the token following a bare "-L" should be taken to be part of the same flag.

[sbc100]

But this is very common case which I'm sure we have tests for.. can you try with origin/incoming.

[sbc100]

(any any recent version of emscripten)

[tlively]

Hmm yeah I see logic for this at https://github.com/emscripten-core/emscripten/blob/incoming/emcc.py#L809. It's been there for years, though.

@craigmayhew What version of Rust are you on? Very recent versions may require recent versions of Emscripten using the LLVM backend.

[craigmayhew]

@tlively version 1.40 nightly. also tried stable

[tlively]

Ok yeah I would try with emscripten 1.38.46-upstream or later *-upstream in the 1.38 line or 1.39.0 or later. The simplest method would be to use emsdk to install and activate latest.

[craigmayhew]

Rust nightly 1.40.0-nightly, with emcc 1.39.2 installed via emsdk

❯ emcc --version

1.39.2

golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.40.0-nightly took 1m30s
❯ cargo rustc --target=wasm32-unknown-emscripten --release --verbose -- -C link-args="-s BINARYEN_ASYNC_COMPILATION=0" --verbose
       Fresh cfg-if v0.1.10
       Fresh md5 v0.7.0
       Fresh libc v0.2.65
       Fresh getrandom v0.1.13
       Fresh rand_core v0.5.1
       Fresh rand_hc v0.2.0
       Fresh rand v0.7.2
   Compiling md5recursion v0.1.0 (/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion)
     Running `rustc --edition=2018 --crate-name md5recursion src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=3 -C 'link-args=-s BINARYEN_ASYNC_COMPILATION=0' --verbose -C metadata=823367528ada3a9c --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern md5=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-6c115fe2d9abded8.rlib --extern rand=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-a5c352c4108b8c50.rlib`
error: linking with `emcc` failed: exit code: 1
  |
  = note: "emcc" "-s" "DISABLE_EXCEPTION_CATCHING=0" "-L" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.0.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.1.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.10.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.11.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.12.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.13.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.14.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.15.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.2.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.3.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.4.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.5.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.6.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.7.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.8.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.9.rcgu.o" "-o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.js" "-s" "EXPORTED_FUNCTIONS=[\"_main\",\"_rust_eh_personality\"]" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.18c9pd5sipy13onm.rcgu.o" "-O3" "--memory-init-file" "0" "-g0" "-s" "DEFAULT_LIBRARY_FUNCS_TO_INCLUDE=[]" "-L" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps" "-L" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps" "-L" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-a5c352c4108b8c50.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_hc-aa572bc55be3fea2.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_core-4a1a81d0f4cb4947.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libgetrandom-5fbc6ef731e5b4f9.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/liblibc-35b12c832b6c637d.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libcfg_if-e116f23270b0e1f3.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-6c115fe2d9abded8.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libstd-3dbe579904fbccbe.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libpanic_unwind-1f28113e3cabf146.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libhashbrown-1d571a23e43c22e2.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/librustc_std_workspace_alloc-715539682a8f65bc.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libbacktrace-91a5ceef68c6ea62.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/librustc_demangle-0dae21a0280e35c1.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libunwind-cb80fc0778a00db3.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libcfg_if-e8471076907d728c.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/liblibc-2f0c44e2ccbc4584.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/liballoc-955c0e5036a23d55.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/librustc_std_workspace_core-825ae32895b6427e.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libcore-2f7ed48dc9819ce8.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libcompiler_builtins-88cd82a8320809f8.rlib" "-l" "c" "-l" "c" "-s" "BINARYEN_ASYNC_COMPILATION=0" "-s" "ERROR_ON_UNDEFINED_SYMBOLS=1" "-s" "ASSERTIONS=1" "-s" "ABORTING_MALLOC=0" "-Wl,--fatal-warnings"
  = note: shared:WARNING: ignoring unsupported linker flag: `--fatal-warnings`
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          /mnt/c/Users/user/Documents/GitHub/emsdk/upstream/bin/llvm-nm: error: /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libcfg_if-e116f23270b0e1f3.rlib(rust.metadata.bin) The end of the file was unexpectedly encountered

          Traceback (most recent call last):
            File "/mnt/c/Users/user/Documents/GitHub/emsdk/upstream/emscripten/emcc.py", line 3681, in <module>
              sys.exit(run(sys.argv))
            File "/mnt/c/Users/user/Documents/GitHub/emsdk/upstream/emscripten/emcc.py", line 1968, in run
              ensure_archive_index(input_file)
            File "/mnt/c/Users/user/Documents/GitHub/emsdk/upstream/emscripten/emcc.py", line 483, in ensure_archive_index
              stdout = run_process([shared.LLVM_NM, '--print-armap', archive_file], stdout=PIPE).stdout
            File "/mnt/c/Users/user/Documents/GitHub/emsdk/upstream/emscripten/tools/shared.py", line 188, in run_process
              result.check_returncode()
            File "/mnt/c/Users/user/Documents/GitHub/emsdk/upstream/emscripten/tools/shared.py", line 168, in check_returncode
              raise Py2CalledProcessError(returncode=self.returncode, cmd=self.args, output=self.stdout, stderr=self.stderr)
          tools.shared.Py2CalledProcessError: Command '['/mnt/c/Users/user/Documents/GitHub/emsdk/upstream/bin/llvm-nm', '--print-armap', '/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libcfg_if-e116f23270b0e1f3.rlib']' returned non-zero exit status 1


error: aborting due to previous error

error: could not compile `md5recursion`.

Caused by:
  process didn't exit successfully: `rustc --edition=2018 --crate-name md5recursion src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=3 -C 'link-args=-s BINARYEN_ASYNC_COMPILATION=0' --verbose -C metadata=823367528ada3a9c --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern md5=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-6c115fe2d9abded8.rlib --extern rand=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-a5c352c4108b8c50.rlib` (exit code: 1)

Rust stable 1.39.0, with emcc 1.39.2 installed via emsdk

golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.39.0
❯ cargo rustc --target=wasm32-unknown-emscripten --release --verbose -- -C link-args="-s BINARYEN_ASYNC_COMPILATION=0" --verbose
       Fresh cfg-if v0.1.10
       Fresh md5 v0.7.0
       Fresh libc v0.2.65
       Fresh getrandom v0.1.13
       Fresh rand_core v0.5.1
       Fresh rand_hc v0.2.0
       Fresh rand v0.7.2
   Compiling md5recursion v0.1.0 (/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion)
     Running `rustc --edition=2018 --crate-name md5recursion src/main.rs --color always --crate-type bin --emit=dep-info,link -C opt-level=3 -C 'link-args=-s BINARYEN_ASYNC_COMPILATION=0' --verbose -C metadata=823367528ada3a9c --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern md5=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-79dbf0877ba4ccd9.rlib --extern rand=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-64275eb013e34348.rlib`
error: linking with `emcc` failed: exit code: 1
  |
  = note: "emcc" "-s" "DISABLE_EXCEPTION_CATCHING=0" "-L" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.0.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.1.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.10.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.11.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.12.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.13.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.14.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.15.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.2.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.3.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.4.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.5.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.6.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.7.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.8.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.9.rcgu.o" "-o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.js" "-s" "EXPORTED_FUNCTIONS=[\"_main\",\"_rust_eh_personality\"]" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.18c9pd5sipy13onm.rcgu.o" "-O3" "--memory-init-file" "0" "-g0" "-s" "DEFAULT_LIBRARY_FUNCS_TO_INCLUDE=[]" "-L" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps" "-L" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps" "-L" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-64275eb013e34348.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_hc-9d859162fdfbd51c.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_core-06817a7b5fe1def6.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libgetrandom-98c7e9978676a88e.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/liblibc-0f968fc7757ab433.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libcfg_if-e8d51f745108570b.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-79dbf0877ba4ccd9.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libstd-c3a1268b0ca58abc.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libpanic_unwind-df99b38c13845e6b.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libhashbrown-5fda646f3f7147a3.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/librustc_std_workspace_alloc-cab185f0e95eb268.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libbacktrace-d3b692abbef8a71e.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/librustc_demangle-1c6566ea50b74fdf.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libunwind-392f9aee3071b376.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libcfg_if-c650f0067a17f672.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/liblibc-5a609febbc798595.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/liballoc-2875889606754491.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/librustc_std_workspace_core-09b2dd65fc6b549e.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libcore-8d39f774f75d50c8.rlib" "/home/user/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libcompiler_builtins-f1ee5b04877823a0.rlib" "-l" "c" "-l" "c" "-s" "BINARYEN_ASYNC_COMPILATION=0" "-s" "BINARYEN=1" "-s" "ERROR_ON_UNDEFINED_SYMBOLS=1" "-s" "BINARYEN_TRAP_MODE=\'clamp\'"
  = note: shared:ERROR: BINARYEN_TRAP_MODE is not supported by the LLVM wasm backend


error: aborting due to previous error

error: could not compile `md5recursion`.

Caused by:
  process didn't exit successfully: `rustc --edition=2018 --crate-name md5recursion src/main.rs --color always --crate-type bin --emit=dep-info,link -C opt-level=3 -C 'link-args=-s BINARYEN_ASYNC_COMPILATION=0' --verbose -C metadata=823367528ada3a9c --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern md5=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-79dbf0877ba4ccd9.rlib --extern rand=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-64275eb013e34348.rlib` (exit code: 1)

[tlively]

Oh wow that's more broken than I thought it would be.

@sbc100 "shared:WARNING: ignoring unsupported linker flag: --fatal-warnings" should only happen if emcc is not using lld. Why wouldn't emcc be using lld here? My guess is that there are old bitcode object files lying around. Would that make sense?

@craigmayhew Did you clean out any caches of built libraries before doing these builds e.g. with cargo clean? Also if you use Rust stable 1.39.0 you will need to use 1.39.2-fastcomp rather than 1.39.2. But I'm most interested in getting Rust 1.40.0-nightly working with 1.39.2.

[craigmayhew]

I've run it again to be sure. Switching to nightly, cargo clean, build failure, rm -rf target, build failure.

golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.39.0
❯ rustup default nightly
info: using existing install for 'nightly-x86_64-unknown-linux-gnu'
info: default toolchain set to 'nightly-x86_64-unknown-linux-gnu'

  nightly-x86_64-unknown-linux-gnu unchanged - rustc 1.40.0-nightly (1423bec54 2019-11-05)


golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.40.0-nightly
❯ cargo clean

golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.40.0-nightly
❯ cargo rustc --target=wasm32-unknown-emscripten --release --verbose -- -C link-args="-s BINARYEN_ASYNC_COMPILATION=0"                                                     --verbose
   Compiling libc v0.2.65
   Compiling getrandom v0.1.13
   Compiling cfg-if v0.1.10
   Compiling md5 v0.7.0
     Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2                                                    .65/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=3 -                                                    C metadata=8b790e5ef0102474 -C extra-filename=-8b790e5ef0102474 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-task                                                    s/gwasm/md5-recursion/target/release/build/libc-8b790e5ef0102474 -L dependency=/mnt/c/Users/user/Documents/GitHub/golem                                                    -tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow`
     Running `rustc --edition=2018 --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db                                                    9ec823/getrandom-0.1.13/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,l                                                    ink -C opt-level=3 --cfg 'feature="std"' -C metadata=94bf1ae737374b3d -C extra-filename=-94bf1ae737374b3d --out-dir /mn                                                    t/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/build/getrandom-94bf1ae737374b3d -L depe                                                    ndency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow`                                                                Running `rustc --edition=2018 --crate-name cfg_if /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/cfg-i                                                    f-0.1.10/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,meta                                                    data,link -C opt-level=3 -C metadata=e116f23270b0e1f3 -C extra-filename=-e116f23270b0e1f3 --out-dir /mnt/c/Users/user/D                                                    ocuments/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-e                                                    mscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscri                                                    pten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps                                                     --cap-lints allow`
     Running `rustc --crate-name md5 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/md5-0.7.0/src/lib.rs --                                                    error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 --cfg '                                                    feature="default"' --cfg 'feature="std"' -C metadata=6c115fe2d9abded8 -C extra-filename=-6c115fe2d9abded8 --out-dir /mn                                                    t/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target                                                     wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm3                                                    2-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/targ                                                    et/release/deps --cap-lints allow`
     Running `/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/build/getrandom-94bf1ae                                                    737374b3d/build-script-build`
     Running `/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/build/libc-8b790e5ef010                                                    2474/build-script-build`
     Running `rustc --crate-name libc /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.65/src/lib.rs                                                     --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-le                                                    vel=3 -C metadata=35b12c832b6c637d -C extra-filename=-35b12c832b6c637d --out-dir /mnt/c/Users/user/Documents/GitHub/gol                                                    em-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L depend                                                    ency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -                                                    L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow -                                                    -cfg freebsd11 --cfg libc_priv_mod_use --cfg libc_union --cfg libc_const_size_of --cfg libc_align --cfg libc_core_cvoid                                                     --cfg libc_packedN`
     Running `rustc --edition=2018 --crate-name getrandom /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/ge                                                    trandom-0.1.13/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-inf                                                    o,metadata,link -C opt-level=3 --cfg 'feature="std"' -C metadata=5fbc6ef731e5b4f9 -C extra-filename=-5fbc6ef731e5b4f9 -                                                    -out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/de                                                    ps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/                                                    target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-re                                                    cursion/target/release/deps --extern cfg_if=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/w                                                    asm32-unknown-emscripten/release/deps/libcfg_if-e116f23270b0e1f3.rmeta --extern libc=/mnt/c/Users/user/Documents/GitHub                                                    /golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/liblibc-35b12c832b6c637d.rmeta --cap-lin                                                    ts allow`
   Compiling rand_core v0.5.1
     Running `rustc --edition=2018 --crate-name rand_core /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/ra                                                    nd_core-0.5.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info                                                    ,metadata,link -C opt-level=3 --cfg 'feature="alloc"' --cfg 'feature="getrandom"' --cfg 'feature="std"' -C metadata=4a1                                                    a81d0f4cb4947 -C extra-filename=-4a1a81d0f4cb4947 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-re                                                    cursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/use                                                    r/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/U                                                    sers/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern getrandom=/mnt/c/Users/user/Doc                                                    uments/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libgetrandom-5fbc6ef731e5b4                                                    f9.rmeta --cap-lints allow`
   Compiling rand_hc v0.2.0
     Running `rustc --edition=2018 --crate-name rand_hc /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/rand                                                    _hc-0.2.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,met                                                    adata,link -C opt-level=3 -C metadata=aa572bc55be3fea2 -C extra-filename=-aa572bc55be3fea2 --out-dir /mnt/c/Users/user/                                                    Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-                                                    emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscr                                                    ipten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps                                                     --extern rand_core=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten                                                    /release/deps/librand_core-4a1a81d0f4cb4947.rmeta --cap-lints allow`
   Compiling rand v0.7.2
     Running `rustc --edition=2018 --crate-name rand /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.                                                    7.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C op                                                    t-level=3 --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="getrandom"' --cfg 'feature="getrandom_packa                                                    ge"' --cfg 'feature="std"' -C metadata=a5c352c4108b8c50 -C extra-filename=-a5c352c4108b8c50 --out-dir /mnt/c/Users/user                                                    /Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown                                                    -emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emsc                                                    ripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/dep                                                    s --extern getrandom_package=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-e                                                    mscripten/release/deps/libgetrandom-5fbc6ef731e5b4f9.rmeta --extern libc=/mnt/c/Users/user/Documents/GitHub/golem-tasks                                                    /gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/liblibc-35b12c832b6c637d.rmeta --extern rand_core=/m                                                    nt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_                                                    core-4a1a81d0f4cb4947.rmeta --extern rand_hc=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/                                                    wasm32-unknown-emscripten/release/deps/librand_hc-aa572bc55be3fea2.rmeta --cap-lints allow`
   Compiling md5recursion v0.1.0 (/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion)
     Running `rustc --edition=2018 --crate-name md5recursion src/main.rs --error-format=json --json=diagnostic-rendered                                                    -ansi --crate-type bin --emit=dep-info,link -C opt-level=3 -C 'link-args=-s BINARYEN_ASYNC_COMPILATION=0' --verbose -C                                                     metadata=823367528ada3a9c --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern md5=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-6c115fe2d9abded8.rlib --extern rand=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-a5c352c4108b8c50.rlib`
error: linker `emcc` not found
  |
  = note: No such file or directory (os error 2)

error: aborting due to previous error

error: could not compile `md5recursion`.

Caused by:
  process didn't exit successfully: `rustc --edition=2018 --crate-name md5recursion src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=3 -C 'link-args=-s BINARYEN_ASYNC_COMPILATION=0' --verbose -C metadata=823367528ada3a9c --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern md5=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-6c115fe2d9abded8.rlib --extern rand=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-a5c352c4108b8c50.rlib` (exit code: 1)

golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.40.0-nightly took 6s
❯ rm -rf
Cargo.lock  Cargo.toml  README.md   in/         src/        target/     task/

golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.40.0-nightly took 6s
❯ rm -rf target/

golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.40.0-nightly
❯ cargo rustc --target=wasm32-unknown-emscripten --release --verbose -- -C link-args="-s BINARYEN_ASYNC_COMPILATION=0" --verbose
   Compiling libc v0.2.65
   Compiling getrandom v0.1.13
   Compiling cfg-if v0.1.10
   Compiling md5 v0.7.0
     Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.65/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=3 -C metadata=8b790e5ef0102474 -C extra-filename=-8b790e5ef0102474 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/build/libc-8b790e5ef0102474 -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow`
     Running `rustc --edition=2018 --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/getrandom-0.1.13/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=3 --cfg 'feature="std"' -C metadata=94bf1ae737374b3d -C extra-filename=-94bf1ae737374b3d --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/build/getrandom-94bf1ae737374b3d -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow`
     Running `rustc --edition=2018 --crate-name cfg_if /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/cfg-if-0.1.10/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C metadata=e116f23270b0e1f3 -C extra-filename=-e116f23270b0e1f3 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow`
     Running `rustc --crate-name md5 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/md5-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=6c115fe2d9abded8 -C extra-filename=-6c115fe2d9abded8 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow`
     Running `/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/build/getrandom-94bf1ae737374b3d/build-script-build`
     Running `/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/build/libc-8b790e5ef0102474/build-script-build`
     Running `rustc --crate-name libc /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.65/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C metadata=35b12c832b6c637d -C extra-filename=-35b12c832b6c637d --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow --cfg freebsd11 --cfg libc_priv_mod_use --cfg libc_union --cfg libc_const_size_of --cfg libc_align --cfg libc_core_cvoid --cfg libc_packedN`       Running `rustc --edition=2018 --crate-name getrandom /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/getrandom-0.1.13/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 --cfg 'feature="std"' -C metadata=5fbc6ef731e5b4f9 -C extra-filename=-5fbc6ef731e5b4f9 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern cfg_if=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libcfg_if-e116f23270b0e1f3.rmeta --extern libc=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/liblibc-35b12c832b6c637d.rmeta --cap-lints allow`
   Compiling rand_core v0.5.1
     Running `rustc --edition=2018 --crate-name rand_core /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/rand_core-0.5.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 --cfg 'feature="alloc"' --cfg 'feature="getrandom"' --cfg 'feature="std"' -C metadata=4a1a81d0f4cb4947 -C extra-filename=-4a1a81d0f4cb4947 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern getrandom=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libgetrandom-5fbc6ef731e5b4f9.rmeta --cap-lints allow`
   Compiling rand_hc v0.2.0
     Running `rustc --edition=2018 --crate-name rand_hc /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/rand_hc-0.2.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C metadata=aa572bc55be3fea2 -C extra-filename=-aa572bc55be3fea2 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern rand_core=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_core-4a1a81d0f4cb4947.rmeta --cap-lints allow`
   Compiling rand v0.7.2
     Running `rustc --edition=2018 --crate-name rand /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.7.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="getrandom"' --cfg 'feature="getrandom_package"' --cfg 'feature="std"' -C metadata=a5c352c4108b8c50 -C extra-filename=-a5c352c4108b8c50 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern getrandom_package=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libgetrandom-5fbc6ef731e5b4f9.rmeta --extern libc=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/liblibc-35b12c832b6c637d.rmeta --extern rand_core=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_core-4a1a81d0f4cb4947.rmeta --extern rand_hc=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_hc-aa572bc55be3fea2.rmeta --cap-lints allow`
   Compiling md5recursion v0.1.0 (/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion)
     Running `rustc --edition=2018 --crate-name md5recursion src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=3 -C 'link-args=-s BINARYEN_ASYNC_COMPILATION=0' --verbose -C metadata=823367528ada3a9c --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern md5=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-6c115fe2d9abded8.rlib --extern rand=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-a5c352c4108b8c50.rlib`
error: linker `emcc` not found
  |
  = note: No such file or directory (os error 2)

error: aborting due to previous error

error: could not compile `md5recursion`.

Caused by:
  process didn't exit successfully: `rustc --edition=2018 --crate-name md5recursion src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=3 -C 'link-args=-s BINARYEN_ASYNC_COMPILATION=0' --verbose -C metadata=823367528ada3a9c --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern md5=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-6c115fe2d9abded8.rlib --extern rand=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-a5c352c4108b8c50.rlib` (exit code: 1)

[craigmayhew]

I forgot to set the path correctly. Running again:
Switching to nightly, cargo clean, set path etc, build failure

golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.40.0-nightly
❯ cd /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/

golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.40.0-nightly
❯ rustup default nightly
info: using existing install for 'nightly-x86_64-unknown-linux-gnu'
info: default toolchain set to 'nightly-x86_64-unknown-linux-gnu'

  nightly-x86_64-unknown-linux-gnu unchanged - rustc 1.40.0-nightly (1423bec54 2019-11-05)


golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.40.0-nightly
❯ cargo clean

golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.40.0-nightly
❯ source /mnt/c/Users/user/Documents/GitHub/emsdk/emsdk_env.sh
Setting environment variables:
EMSDK = /mnt/c/Users/user/Documents/GitHub/emsdk


golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.40.0-nightly
❯ cargo rustc --target=wasm32-unknown-emscripten --release --verbose -- -C link-args="-s BINARYEN_ASYNC_COMPILATION=0" --verbose
   Compiling libc v0.2.65
   Compiling getrandom v0.1.13
   Compiling cfg-if v0.1.10
   Compiling md5 v0.7.0
     Running `rustc --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.65/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=3 -C metadata=8b790e5ef0102474 -C extra-filename=-8b790e5ef0102474 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/build/libc-8b790e5ef0102474 -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow`
     Running `rustc --edition=2018 --crate-name build_script_build /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/getrandom-0.1.13/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=3 --cfg 'feature="std"' -C metadata=94bf1ae737374b3d -C extra-filename=-94bf1ae737374b3d --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/build/getrandom-94bf1ae737374b3d -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow`
     Running `rustc --edition=2018 --crate-name cfg_if /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/cfg-if-0.1.10/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C metadata=e116f23270b0e1f3 -C extra-filename=-e116f23270b0e1f3 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow`
     Running `rustc --crate-name md5 /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/md5-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=6c115fe2d9abded8 -C extra-filename=-6c115fe2d9abded8 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow`
     Running `/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/build/getrandom-94bf1ae737374b3d/build-script-build`
     Running `/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/build/libc-8b790e5ef0102474/build-script-build`
     Running `rustc --crate-name libc /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.65/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C metadata=35b12c832b6c637d -C extra-filename=-35b12c832b6c637d --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --cap-lints allow --cfg freebsd11 --cfg libc_priv_mod_use --cfg libc_union --cfg libc_const_size_of --cfg libc_align --cfg libc_core_cvoid --cfg libc_packedN`
     Running `rustc --edition=2018 --crate-name getrandom /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/getrandom-0.1.13/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 --cfg 'feature="std"' -C metadata=5fbc6ef731e5b4f9 -C extra-filename=-5fbc6ef731e5b4f9 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern cfg_if=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libcfg_if-e116f23270b0e1f3.rmeta --extern libc=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/liblibc-35b12c832b6c637d.rmeta --cap-lints allow`
   Compiling rand_core v0.5.1
     Running `rustc --edition=2018 --crate-name rand_core /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/rand_core-0.5.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 --cfg 'feature="alloc"' --cfg 'feature="getrandom"' --cfg 'feature="std"' -C metadata=4a1a81d0f4cb4947 -C extra-filename=-4a1a81d0f4cb4947 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern getrandom=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libgetrandom-5fbc6ef731e5b4f9.rmeta --cap-lints allow`
   Compiling rand_hc v0.2.0
     Running `rustc --edition=2018 --crate-name rand_hc /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/rand_hc-0.2.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C metadata=aa572bc55be3fea2 -C extra-filename=-aa572bc55be3fea2 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern rand_core=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_core-4a1a81d0f4cb4947.rmeta --cap-lints allow`
   Compiling rand v0.7.2
     Running `rustc --edition=2018 --crate-name rand /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.7.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="getrandom"' --cfg 'feature="getrandom_package"' --cfg 'feature="std"' -C metadata=a5c352c4108b8c50 -C extra-filename=-a5c352c4108b8c50 --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern getrandom_package=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libgetrandom-5fbc6ef731e5b4f9.rmeta --extern libc=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/liblibc-35b12c832b6c637d.rmeta --extern rand_core=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_core-4a1a81d0f4cb4947.rmeta --extern rand_hc=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_hc-aa572bc55be3fea2.rmeta --cap-lints allow`
   Compiling md5recursion v0.1.0 (/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion)
     Running `rustc --edition=2018 --crate-name md5recursion src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=3 -C 'link-args=-s BINARYEN_ASYNC_COMPILATION=0' --verbose -C metadata=823367528ada3a9c --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern md5=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-6c115fe2d9abded8.rlib --extern rand=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-a5c352c4108b8c50.rlib`
error: linking with `emcc` failed: exit code: 1
  |
  = note: "emcc" "-s" "DISABLE_EXCEPTION_CATCHING=0" "-L" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.0.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.1.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.10.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.11.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.12.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.13.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.14.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.15.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.2.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.3.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.4.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.5.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.6.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.7.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.8.rcgu.o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.md5recursion.aanno64f-cgu.9.rcgu.o" "-o" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.js" "-s" "EXPORTED_FUNCTIONS=[\"_main\",\"_rust_eh_personality\"]" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/md5recursion.18c9pd5sipy13onm.rcgu.o" "-O3" "--memory-init-file" "0" "-g0" "-s" "DEFAULT_LIBRARY_FUNCS_TO_INCLUDE=[]" "-L" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps" "-L" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps" "-L" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-a5c352c4108b8c50.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_hc-aa572bc55be3fea2.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand_core-4a1a81d0f4cb4947.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libgetrandom-5fbc6ef731e5b4f9.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/liblibc-35b12c832b6c637d.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libcfg_if-e116f23270b0e1f3.rlib" "/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-6c115fe2d9abded8.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libstd-3dbe579904fbccbe.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libpanic_unwind-1f28113e3cabf146.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libhashbrown-1d571a23e43c22e2.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/librustc_std_workspace_alloc-715539682a8f65bc.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libbacktrace-91a5ceef68c6ea62.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/librustc_demangle-0dae21a0280e35c1.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libunwind-cb80fc0778a00db3.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libcfg_if-e8471076907d728c.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/liblibc-2f0c44e2ccbc4584.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/liballoc-955c0e5036a23d55.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/librustc_std_workspace_core-825ae32895b6427e.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libcore-2f7ed48dc9819ce8.rlib" "/home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/wasm32-unknown-emscripten/lib/libcompiler_builtins-88cd82a8320809f8.rlib" "-l" "c" "-l" "c" "-s" "BINARYEN_ASYNC_COMPILATION=0" "-s" "ERROR_ON_UNDEFINED_SYMBOLS=1" "-s" "ASSERTIONS=1" "-s" "ABORTING_MALLOC=0" "-Wl,--fatal-warnings"
  = note: shared:WARNING: ignoring unsupported linker flag: `--fatal-warnings`
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          no symbols
          /mnt/c/Users/user/Documents/GitHub/emsdk/upstream/bin/llvm-nm: error: /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libcfg_if-e116f23270b0e1f3.rlib(rust.metadata.bin) The end of the file was unexpectedly encountered

          Traceback (most recent call last):
            File "/mnt/c/Users/user/Documents/GitHub/emsdk/upstream/emscripten/emcc.py", line 3681, in <module>
              sys.exit(run(sys.argv))
            File "/mnt/c/Users/user/Documents/GitHub/emsdk/upstream/emscripten/emcc.py", line 1968, in run
              ensure_archive_index(input_file)
            File "/mnt/c/Users/user/Documents/GitHub/emsdk/upstream/emscripten/emcc.py", line 483, in ensure_archive_index
              stdout = run_process([shared.LLVM_NM, '--print-armap', archive_file], stdout=PIPE).stdout
            File "/mnt/c/Users/user/Documents/GitHub/emsdk/upstream/emscripten/tools/shared.py", line 188, in run_process
              result.check_returncode()
            File "/mnt/c/Users/user/Documents/GitHub/emsdk/upstream/emscripten/tools/shared.py", line 168, in check_returncode
              raise Py2CalledProcessError(returncode=self.returncode, cmd=self.args, output=self.stdout, stderr=self.stderr)
          tools.shared.Py2CalledProcessError: Command '['/mnt/c/Users/user/Documents/GitHub/emsdk/upstream/bin/llvm-nm', '--print-armap', '/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libcfg_if-e116f23270b0e1f3.rlib']' returned non-zero exit status 1      

error: aborting due to previous error

error: could not compile `md5recursion`.

Caused by:
  process didn't exit successfully: `rustc --edition=2018 --crate-name md5recursion src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=3 -C 'link-args=-s BINARYEN_ASYNC_COMPILATION=0' --verbose -C metadata=823367528ada3a9c --out-dir /mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps --target wasm32-unknown-emscripten -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps -L dependency=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/release/deps --extern md5=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/libmd5-6c115fe2d9abded8.rlib --extern rand=/mnt/c/Users/user/Documents/GitHub/golem-tasks/gwasm/md5-recursion/target/wasm32-unknown-emscripten/release/deps/librand-a5c352c4108b8c50.rlib` (exit code: 1)

golem-tasks/gwasm/md5-recursion on  master [!] is 📦 v0.1.0 via 🦀 v1.40.0-nightly took 4s
❯

[tlively]

Is this an open source project I can build locally and poke around in? I'd like to check whether the object in the rlibs are LLVM bitcode or not.

Can you also provide a log that includes the emsdk install and emsdk activate commands?