@alice
It helps, but another error occur at runtime !!
Url path is https://docs.rs/tokio/0.2.19/tokio/signal/index.html
thread 'tokio-runtime-worker' panicked at 'gai background task failed: JoinError::Cancelled', {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-0.13.5\src\client\connect\dns.rs:144:30
stack backtrace:
0: backtrace::backtrace::trace_unsynchronized
at C:\Users\VssAdministrator\.cargo\registry\src\github.com-1ecc6299db9ec823\backtrace-0.3.46\src\backtrace\mod.rs:66
1: std::sys_common::backtrace::_print_fmt
at /rustc/edc02580e4e80476ac1ded2cc1008eaf8b8400e6\/src\libstd\sys_common\backtrace.rs:78
2: std::sys_common::backtrace::_print::{{impl}}::fmt
at /rustc/edc02580e4e80476ac1ded2cc1008eaf8b8400e6\/src\libstd\sys_common\backtrace.rs:59
3: core::fmt::write
at /rustc/edc02580e4e80476ac1ded2cc1008eaf8b8400e6\/src\libcore\fmt\mod.rs:1069
4: std::io::Write::write_fmt<std::sys::windows::stdio::Stderr>
at /rustc/edc02580e4e80476ac1ded2cc1008eaf8b8400e6\/src\libstd\io\mod.rs:1504
5: std::sys_common::backtrace::_print
at /rustc/edc02580e4e80476ac1ded2cc1008eaf8b8400e6\/src\libstd\sys_common\backtrace.rs:62
6: std::sys_common::backtrace::print
at /rustc/edc02580e4e80476ac1ded2cc1008eaf8b8400e6\/src\libstd\sys_common\backtrace.rs:49
7: std::panicking::default_hook::{{closure}}
at /rustc/edc02580e4e80476ac1ded2cc1008eaf8b8400e6\/src\libstd\panicking.rs:198
8: std::panicking::default_hook
at /rustc/edc02580e4e80476ac1ded2cc1008eaf8b8400e6\/src\libstd\panicking.rs:218
9: std::panicking::rust_panic_with_hook
at /rustc/edc02580e4e80476ac1ded2cc1008eaf8b8400e6\/src\libstd\panicking.rs:511
10: std::panicking::begin_panic_handler
at /rustc/edc02580e4e80476ac1ded2cc1008eaf8b8400e6\/src\libstd\panicking.rs:419
11: std::panicking::begin_panic_fmt
at /rustc/edc02580e4e80476ac1ded2cc1008eaf8b8400e6\/src\libstd\panicking.rs:373
12: hyper::client::connect::dns::{{impl}}::poll::{{closure}}
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-0.13.5\src\client\connect\dns.rs:144
13: core::task::poll::Poll<core::result::Result<core::result::Result<hyper::client::connect::dns::IpAddrs, std::io::error::Error>, tokio::runtime::task::error::JoinError>>::map<core::result::Result<core::result::Result<hyper::client::connect::dns::IpAddrs, st
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\task\poll.rs:33
14: hyper::client::connect::dns::{{impl}}::poll
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-0.13.5\src\client\connect\dns.rs:141
15: core::future::poll_with_context<hyper::client::connect::dns::GaiFuture>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:84
16: hyper::client::connect::dns::resolve::{{closure}}<hyper::client::connect::dns::GaiResolver>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-0.13.5\src\client\connect\dns.rs:342
17: core::future::from_generator::{{impl}}::poll<generator-0>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:66
18: core::future::poll_with_context<core::future::from_generator::GenFuture<generator-0>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:84
19: hyper::client::connect::http::{{impl}}::call_async::{{closure}}<hyper::client::connect::dns::GaiResolver>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-0.13.5\src\client\connect\http.rs:307
20: core::future::from_generator::{{impl}}::poll<generator-0>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:66
21: core::future::poll_with_context<core::future::from_generator::GenFuture<generator-0>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:84
22: hyper::client::connect::http::{{impl}}::call::{{closure}}<hyper::client::connect::dns::GaiResolver>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-0.13.5\src\client\connect\http.rs:248
23: core::future::from_generator::{{impl}}::poll<generator-0>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:66
24: core::future::future::{{impl}}::poll<alloc::boxed::Box<Future>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\future.rs:118
25: hyper::client::connect::http::{{impl}}::poll<hyper::client::connect::dns::GaiResolver>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-0.13.5\src\client\connect\http.rs:388
26: futures_util::future::either::{{impl}}::poll<hyper::client::connect::http::HttpConnecting<hyper::client::connect::dns::GaiResolver>,hyper::client::connect::http::HttpConnecting<hyper::client::connect::dns::GaiResolver>>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-util-0.3.4\src\future\either.rs:62
27: core::future::poll_with_context<futures_util::future::either::Either<hyper::client::connect::http::HttpConnecting<hyper::client::connect::dns::GaiResolver>, hyper::client::connect::http::HttpConnecting<hyper::client::connect::dns::GaiResolver>>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:84
28: hyper_tls::client::{{impl}}::call::{{closure}}<reqwest::connect::HttpConnector>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-tls-0.4.1\src\client.rs:115
29: core::future::from_generator::{{impl}}::poll<generator-0>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:66
30: core::future::future::{{impl}}::poll<alloc::boxed::Box<Future>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\future.rs:118
31: hyper_tls::client::{{impl}}::poll<tokio::net::tcp::stream::TcpStream>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-tls-0.4.1\src\client.rs:144
32: core::future::poll_with_context<hyper_tls::client::HttpsConnecting<tokio::net::tcp::stream::TcpStream>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:84
33: reqwest::connect::{{impl}}::connect_with_maybe_proxy::{{closure}}
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\reqwest-0.10.4\src\connect.rs:346
34: core::future::from_generator::{{impl}}::poll<generator-0>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:66
35: core::future::poll_with_context<core::future::from_generator::GenFuture<generator-0>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:84
36: reqwest::connect::with_timeout::{{closure}}<reqwest::connect::Conn,core::future::from_generator::GenFuture<generator-0>>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\reqwest-0.10.4\src\connect.rs:500
37: core::future::from_generator::{{impl}}::poll<generator-0>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:66
38: core::future::future::{{impl}}::poll<alloc::boxed::Box<Future>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\future.rs:118
39: hyper::service::oneshot::{{impl}}::poll<reqwest::connect::Connector,http::uri::Uri>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-0.13.5\src\service\oneshot.rs:58
40: futures_core::future::{{impl}}::try_poll<hyper::service::oneshot::Oneshot<reqwest::connect::Connector, http::uri::Uri>,reqwest::connect::Conn,alloc::boxed::Box<Error>>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-core-0.3.4\src\future.rs:83
41: futures_util::future::try_future::map_err::{{impl}}::poll<hyper::service::oneshot::Oneshot<reqwest::connect::Connector, http::uri::Uri>,fn(alloc::boxed::Box<Error>) -> hyper::error::Error,hyper::error::Error>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-util-0.3.4\src\future\try_future\map_err.rs:43
42: futures_core::future::{{impl}}::try_poll<futures_util::future::try_future::map_err::MapErr<hyper::service::oneshot::Oneshot<reqwest::connect::Connector, http::uri::Uri>, fn(alloc::boxed::Box<Error>) -> hyper::error::Error>,reqwest::connect::Conn,hyper::er
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-core-0.3.4\src\future.rs:83
43: futures_util::future::try_future::try_chain::TryChain<futures_util::future::try_future::map_err::MapErr<hyper::service::oneshot::Oneshot<reqwest::connect::Connector, http::uri::Uri>, fn(alloc::boxed::Box<Error>) -> hyper::error::Error>, futures_util::futu
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-util-0.3.4\src\future\try_future\try_chain.rs:53
44: futures_util::future::try_future::and_then::{{impl}}::poll<futures_util::future::try_future::map_err::MapErr<hyper::service::oneshot::Oneshot<reqwest::connect::Connector, http::uri::Uri>, fn(alloc::boxed::Box<Error>) -> hyper::error::Error>,futures_util::
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-util-0.3.4\src\future\try_future\and_then.rs:46
45: futures_util::future::either::{{impl}}::poll<futures_util::future::try_future::and_then::AndThen<futures_util::future::try_future::map_err::MapErr<hyper::service::oneshot::Oneshot<reqwest::connect::Connector, http::uri::Uri>, fn(alloc::boxed::Box<Error>)
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-util-0.3.4\src\future\either.rs:62
46: hyper::common::lazy::{{impl}}::poll<closure-0,futures_util::future::either::Either<futures_util::future::try_future::and_then::AndThen<futures_util::future::try_future::map_err::MapErr<hyper::service::oneshot::Oneshot<reqwest::connect::Connector, http::ur
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-0.13.5\src\common\lazy.rs:59
47: futures_util::future::future::FutureExt::poll_unpin<hyper::common::lazy::Lazy<closure-0, futures_util::future::either::Either<futures_util::future::try_future::and_then::AndThen<futures_util::future::try_future::map_err::MapErr<hyper::service::oneshot::On
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-util-0.3.4\src\future\future\mod.rs:507
48: futures_util::future::select::{{impl}}::poll<hyper::client::pool::Checkout<hyper::client::PoolClient<reqwest::async_impl::body::ImplStream>>,hyper::common::lazy::Lazy<closure-0, futures_util::future::either::Either<futures_util::future::try_future::and_th
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-util-0.3.4\src\future\select.rs:64
49: futures_util::future::future::chain::Chain<futures_util::future::select::Select<hyper::client::pool::Checkout<hyper::client::PoolClient<reqwest::async_impl::body::ImplStream>>, hyper::common::lazy::Lazy<closure-0, futures_util::future::either::Either<futu
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-util-0.3.4\src\future\future\chain.rs:44
50: futures_util::future::future::then::{{impl}}::poll<futures_util::future::select::Select<hyper::client::pool::Checkout<hyper::client::PoolClient<reqwest::async_impl::body::ImplStream>>, hyper::common::lazy::Lazy<closure-0, futures_util::future::either::Eit
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-util-0.3.4\src\future\future\then.rs:44
51: futures_core::future::{{impl}}::try_poll<futures_util::future::future::then::Then<futures_util::future::select::Select<hyper::client::pool::Checkout<hyper::client::PoolClient<reqwest::async_impl::body::ImplStream>>, hyper::common::lazy::Lazy<closure-0, fu
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-core-0.3.4\src\future.rs:83
52: futures_util::future::try_future::try_chain::TryChain<futures_util::future::future::then::Then<futures_util::future::select::Select<hyper::client::pool::Checkout<hyper::client::PoolClient<reqwest::async_impl::body::ImplStream>>, hyper::common::lazy::Lazy<
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-util-0.3.4\src\future\try_future\try_chain.rs:53
53: futures_util::future::try_future::and_then::{{impl}}::poll<futures_util::future::future::then::Then<futures_util::future::select::Select<hyper::client::pool::Checkout<hyper::client::PoolClient<reqwest::async_impl::body::ImplStream>>, hyper::common::lazy::
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-util-0.3.4\src\future\try_future\and_then.rs:46
54: hyper::client::{{impl}}::retryably_send_request::{{closure}}<reqwest::connect::Connector,reqwest::async_impl::body::ImplStream>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-0.13.5\src\client\mod.rs:253
55: futures_util::future::poll_fn::{{impl}}::poll<core::result::Result<http::response::Response<hyper::body::body::Body>, hyper::error::Error>,closure-0>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\futures-util-0.3.4\src\future\poll_fn.rs:54
56: core::future::future::{{impl}}::poll<alloc::boxed::Box<Future>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\future.rs:118
57: hyper::client::{{impl}}::poll
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\hyper-0.13.5\src\client\mod.rs:604
58: reqwest::async_impl::client::{{impl}}::poll
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\reqwest-0.10.4\src\async_impl\client.rs:1276
59: reqwest::async_impl::client::{{impl}}::poll
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\reqwest-0.10.4\src\async_impl\client.rs:1255
60: core::future::poll_with_context<reqwest::async_impl::client::Pending>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:84
61: reqwest::get::{{closure}}<url::Url>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\reqwest-0.10.4\src\lib.rs:249
62: core::future::from_generator::{{impl}}::poll<generator-0>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:66
63: core::future::poll_with_context<core::future::from_generator::GenFuture<generator-0>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:84
64: SearchEngine::handle_url::{{closure}}
at .\src\main.rs:21
65: core::future::from_generator::{{impl}}::poll<generator-0>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\future\mod.rs:66
66: tokio::runtime::task::core::{{impl}}::poll::{{closure}}<core::future::from_generator::GenFuture<generator-0>,alloc::sync::Arc<tokio::runtime::thread_pool::worker::Worker>>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\task\core.rs:163
67: tokio::loom::std::unsafe_cell::UnsafeCell<tokio::runtime::task::core::Stage<core::future::from_generator::GenFuture<generator-0>>>::with_mut<tokio::runtime::task::core::Stage<core::future::from_generator::GenFuture<generator-0>>,core::task::poll::Poll<cor
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\loom\std\unsafe_cell.rs:14
68: tokio::runtime::task::core::Core<core::future::from_generator::GenFuture<generator-0>, alloc::sync::Arc<tokio::runtime::thread_pool::worker::Worker>>::poll<core::future::from_generator::GenFuture<generator-0>,alloc::sync::Arc<tokio::runtime::thread_pool::
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\task\core.rs:148
69: tokio::runtime::task::harness::{{impl}}::poll::{{closure}}<core::future::from_generator::GenFuture<generator-0>,alloc::sync::Arc<tokio::runtime::thread_pool::worker::Worker>>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\task\harness.rs:108
70: core::ops::function::FnOnce::call_once<closure-0,()>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\ops\function.rs:232
71: std::panic::{{impl}}::call_once<core::task::poll::Poll<core::result::Result<core::result::Result<(), alloc::boxed::Box<Error>>, tokio::runtime::task::error::JoinError>>,closure-0>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libstd\panic.rs:318
72: std::panicking::try::do_call<std::panic::AssertUnwindSafe<closure-0>,core::task::poll::Poll<core::result::Result<core::result::Result<(), alloc::boxed::Box<Error>>, tokio::runtime::task::error::JoinError>>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libstd\panicking.rs:331
73: std::panicking::try::do_catch<std::panic::AssertUnwindSafe<closure-0>,core::task::poll::Poll<core::result::Result<core::result::Result<(), alloc::boxed::Box<Error>>, tokio::runtime::task::error::JoinError>>>
74: std::panicking::try<core::task::poll::Poll<core::result::Result<core::result::Result<(), alloc::boxed::Box<Error>>, tokio::runtime::task::error::JoinError>>,std::panic::AssertUnwindSafe<closure-0>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libstd\panicking.rs:274
75: std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure-0>,core::task::poll::Poll<core::result::Result<core::result::Result<(), alloc::boxed::Box<Error>>, tokio::runtime::task::error::JoinError>>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libstd\panic.rs:394
76: tokio::runtime::task::harness::Harness<core::future::from_generator::GenFuture<generator-0>, alloc::sync::Arc<tokio::runtime::thread_pool::worker::Worker>>::poll<core::future::from_generator::GenFuture<generator-0>,alloc::sync::Arc<tokio::runtime::thread_
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\task\harness.rs:84
77: tokio::runtime::task::raw::poll<core::future::from_generator::GenFuture<generator-0>,alloc::sync::Arc<tokio::runtime::thread_pool::worker::Worker>>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\task\raw.rs:104
78: tokio::runtime::task::raw::RawTask::poll
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\task\raw.rs:66
79: tokio::runtime::task::Notified<alloc::sync::Arc<tokio::runtime::thread_pool::worker::Worker>>::run<alloc::sync::Arc<tokio::runtime::thread_pool::worker::Worker>>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\task\mod.rs:169
80: tokio::runtime::thread_pool::worker::{{impl}}::run_task::{{closure}}
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\thread_pool\worker.rs:353
81: tokio::coop::budget::{{closure}}<closure-0,core::result::Result<alloc::boxed::Box<tokio::runtime::thread_pool::worker::Core>, ()>>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\coop.rs:97
82: std::thread::local::LocalKey<core::cell::Cell<usize>>::try_with<core::cell::Cell<usize>,closure-0,core::result::Result<alloc::boxed::Box<tokio::runtime::thread_pool::worker::Core>, ()>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libstd\thread\local.rs:263
83: std::thread::local::LocalKey<core::cell::Cell<usize>>::with<core::cell::Cell<usize>,closure-0,core::result::Result<alloc::boxed::Box<tokio::runtime::thread_pool::worker::Core>, ()>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libstd\thread\local.rs:239
84: tokio::coop::budget
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\coop.rs:79
85: tokio::runtime::thread_pool::worker::Context::run_task
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\thread_pool\worker.rs:352
86: tokio::runtime::thread_pool::worker::Context::run
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\thread_pool\worker.rs:324
87: tokio::runtime::thread_pool::worker::run::{{closure}}
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\thread_pool\worker.rs:309
88: tokio::macros::scoped_tls::ScopedKey<tokio::runtime::thread_pool::worker::Context>::set<tokio::runtime::thread_pool::worker::Context,closure-0,()>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\macros\scoped_tls.rs:64
89: tokio::runtime::thread_pool::worker::run
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\thread_pool\worker.rs:306
90: tokio::runtime::thread_pool::worker::{{impl}}::launch::{{closure}}
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\thread_pool\worker.rs:285
91: tokio::runtime::blocking::task::{{impl}}::poll<closure-0,()>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\blocking\task.rs:38
92: tokio::runtime::task::core::{{impl}}::poll::{{closure}}<tokio::runtime::blocking::task::BlockingTask<closure-0>,tokio::runtime::blocking::schedule::NoopSchedule>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\task\core.rs:163
93: tokio::loom::std::unsafe_cell::UnsafeCell<tokio::runtime::task::core::Stage<tokio::runtime::blocking::task::BlockingTask<closure-0>>>::with_mut<tokio::runtime::task::core::Stage<tokio::runtime::blocking::task::BlockingTask<closure-0>>,core::task::poll::Po
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\loom\std\unsafe_cell.rs:14
94: tokio::runtime::task::core::Core<tokio::runtime::blocking::task::BlockingTask<closure-0>, tokio::runtime::blocking::schedule::NoopSchedule>::poll<tokio::runtime::blocking::task::BlockingTask<closure-0>,tokio::runtime::blocking::schedule::NoopSchedule>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\task\core.rs:148
95: tokio::runtime::task::harness::{{impl}}::poll::{{closure}}<tokio::runtime::blocking::task::BlockingTask<closure-0>,tokio::runtime::blocking::schedule::NoopSchedule>
at {MyPath}\.cargo\registry\src\github.com-1ecc6299db9ec823\tokio-0.2.19\src\runtime\task\harness.rs:108
96: core::ops::function::FnOnce::call_once<closure-0,()>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libcore\ops\function.rs:232
97: std::panic::{{impl}}::call_once<core::task::poll::Poll<core::result::Result<(), tokio::runtime::task::error::JoinError>>,closure-0>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libstd\panic.rs:318
98: std::panicking::try::do_call<std::panic::AssertUnwindSafe<closure-0>,core::task::poll::Poll<core::result::Result<(), tokio::runtime::task::error::JoinError>>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libstd\panicking.rs:331
99: core::result::{{impl}}::into_result<std::sync::mutex::MutexGuard<()>,std::sys_common::poison::PoisonError<std::sync::mutex::MutexGuard<()>>>
100: std::panicking::try<core::task::poll::Poll<core::result::Result<(), tokio::runtime::task::error::JoinError>>,std::panic::AssertUnwindSafe<closure-0>>
at {MyPath}\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\src\libstd\panicking.rs:274
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
Consider the following code:
tokio::spawn(handle_url(url)); // Crashed
handle_url(url).await; // Ok
I have no idea why in tokio::spawn it crashed !!