[MySQL] panic in linked-hash-map

[Json1949]

let pool = MySqlPool::connect("mysql://root:123456@localhost/database")
    .await
    .unwrap();
let sql = "select * from accounts;";
let cursor = sqlx::query(sql).fetch_all(&pool).await?;
println!("{:?}", cursor);

the error message is

thread 'main' panicked at 'attempted to leave type linked_hash_map::Node<std::string::String, (u32, mysql::statement::MySqlStatementMetadata)> uninitialized, which is invalid', .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/mem/mod.rs:659:9

[abonander]

Can you please post more of the stack trace? It sounds like a bug in linked_hash_map.

[Json1949]

Can you please post more of the stack trace? It sounds like a bug in linked_hash_map.

stack backtrace:
0: 0x107651684 - std::backtrace_rs::backtrace::libunwind::trace::habd846dbfba4dec3
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5
1: 0x107651684 - std::backtrace_rs::backtrace::trace_unsynchronized::h40dc245c02c850cd
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x107651684 - std::sys_common::backtrace::_print_fmt::h67f54f72bef166ff
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/sys_common/backtrace.rs:67:5
3: 0x107651684 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h844c7066beb666ef
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/sys_common/backtrace.rs:46:22
4: 0x10766a330 - core::fmt::write::h0ce880d33cd2a300
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/core/src/fmt/mod.rs:1076:17
5: 0x10764b926 - std::io::Write::write_fmt::hac02242b4f0d94cf
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/io/mod.rs:1516:15
6: 0x107653329 - std::sys_common::backtrace::_print::h56a3f5ea1b98f7e0
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/sys_common/backtrace.rs:49:5
7: 0x107653329 - std::sys_common::backtrace::print::h547c70911beccdc9
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/sys_common/backtrace.rs:36:9
8: 0x107653329 - std::panicking::default_hook::{{closure}}::h96cc94daaa1c2cce
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/panicking.rs:208:50
9: 0x107652fed - std::panicking::default_hook::h4bcbdbb4632a8430
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/panicking.rs:227:9
10: 0x1076538fb - std::panicking::rust_panic_with_hook::haed354b0f2e751b0
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/panicking.rs:577:17
11: 0x10765347b - std::panicking::begin_panic_handler::{{closure}}::h6fdc9b95d4517185
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/panicking.rs:484:9
12: 0x107651b28 - std::sys_common::backtrace::__rust_end_short_backtrace::h21cee36b0bb256cd
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/sys_common/backtrace.rs:141:18
13: 0x10765343a - rust_begin_unwind
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/panicking.rs:483:5
14: 0x10767427f - core::panicking::panic_fmt::h33aee6f32da9c3a4
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/core/src/panicking.rs:85:14
15: 0x1076741d7 - core::panicking::panic::hbacf203cc1296275
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/core/src/panicking.rs:50:5
16: 0x10718c32a - core::mem::uninitialized::h32ddcd897981961e
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/mem/mod.rs:659:9
17: 0x10718c32a - linked_hash_map::LinkedHashMap<K,V,S>::ensure_guard_node::hd799f1f8938c4fcd
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/linked-hash-map-0.5.2/src/lib.rs:174:52
18: 0x10718c4cd - linked_hash_map::LinkedHashMap<K,V,S>::insert::hc965c7733bb105a8
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/linked-hash-map-0.5.2/src/lib.rs:304:9
19: 0x107188a36 - lru_cache::LruCache<K,V,S>::insert::h8d2f2aeaaf118b02
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/lru-cache-0.1.2/src/lib.rs:119:23
20: 0x1071cce6f - sqlx_core::common::statement_cache::StatementCache::insert::h209c2a1805670fed
at .cargo/git/checkouts/sqlx-f05f33ba4f5c3036/d97014f/sqlx-core/src/common/statement_cache.rs:36:9
21: 0x1071bf703 - sqlx_core::mysql::connection::executor::::get_or_prepare::{{closure}}::h4598822153c09c3a
at .cargo/git/checkouts/sqlx-f05f33ba4f5c3036/d97014f/sqlx-core/src/mysql/connection/executor.rs:77:36
22: 0x1071a3cdc - <core::future::from_generator::GenFuture as core::future::future::Future>::poll::h7fca1639d8595fb2
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/mod.rs:80:19
23: 0x1071c023e - sqlx_core::mysql::connection::executor::::run::{{closure}}::{{closure}}::{{closure}}::hf52db225d8a860b3
at .cargo/git/checkouts/sqlx-f05f33ba4f5c3036/d97014f/sqlx-core/src/mysql/connection/executor.rs:104:38
24: 0x1071a36f6 - <core::future::from_generator::GenFuture as core::future::future::Future>::poll::h4ef3cfeba6e43cec
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/mod.rs:80:19
25: 0x1071cbf8d - sqlx_core::ext::async_stream::TryAsyncStream::new::{{closure}}::h00f6066d25b0b6e3
at .cargo/git/checkouts/sqlx-f05f33ba4f5c3036/d97014f/sqlx-core/src/ext/async_stream.rs:28:33
26: 0x1071a3f56 - <core::future::from_generator::GenFuture as core::future::future::Future>::poll::h844e525fbd4f8c30
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/mod.rs:80:19
27: 0x1071f099a - <futures_util::future::future::fuse::Fuse as core::future::future::Future>::poll::h121844b9edd35b81
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-util-0.3.5/src/future/future/fuse.rs:81:37
28: 0x10718756d - <core::pin::Pin

as core::future::future::Future>::poll::h629ac43518d2cdf6
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/future.rs:119:9
29: 0x107186b6b - <&mut F as core::future::future::Future>::poll::hc3ce9c0657b4e780
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/future.rs:107:9
30: 0x1071ccba1 - <sqlx_core::ext::async_stream::TryAsyncStream as futures_core::stream::Stream>::poll_next::hb42bab1eb5e2cbd7
at .cargo/git/checkouts/sqlx-f05f33ba4f5c3036/d97014f/sqlx-core/src/ext/async_stream.rs:51:17
31: 0x107187828 - <core::pin::Pin

as futures_core::stream::Stream>::poll_next::hb2a3b36b389a0085
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-core-0.3.5/src/stream.rs:121:9
32: 0x107187898 - <core::pin::Pin

as futures_core::stream::Stream>::poll_next::hbfcada9940b08362
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-core-0.3.5/src/stream.rs:121:9
33: 0x1071867fc - ::try_poll_next::h96e63ae72f6b36d4
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-core-0.3.5/src/stream.rs:193:9
34: 0x107181a44 - futures_util::stream::try_stream::TryStreamExt::try_poll_next_unpin::h9a66654e5a4aed8e
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-util-0.3.5/src/stream/try_stream/mod.rs:811:9
35: 0x107196f21 - <futures_util::stream::try_stream::try_next::TryNext as core::future::future::Future>::poll::ha757e3841459305f
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-util-0.3.5/src/stream/try_stream/try_next.rs:35:9
36: 0x107147a22 - sqlx_core::mysql::connection::executor::<impl sqlx_core::executor::Executor for &mut sqlx_core::mysql::connection::MySqlConnection>::fetch_many::{{closure}}::{{closure}}::h82cf627ada2141d1
at .cargo/git/checkouts/sqlx-f05f33ba4f5c3036/d97014f/sqlx-core/src/mysql/connection/executor.rs:229:33
37: 0x10714b646 - <core::future::from_generator::GenFuture as core::future::future::Future>::poll::h7058da5d37eb886f
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/mod.rs:80:19
38: 0x107166f2d - sqlx_core::ext::async_stream::TryAsyncStream::new::{{closure}}::h7b23171c6d4c8da7
at .cargo/git/checkouts/sqlx-f05f33ba4f5c3036/d97014f/sqlx-core/src/ext/async_stream.rs:28:33
39: 0x10714b786 - <core::future::from_generator::GenFuture as core::future::future::Future>::poll::h7bdcf9eb0c3813f3
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/mod.rs:80:19
40: 0x107146a4a - <futures_util::future::future::fuse::Fuse as core::future::future::Future>::poll::hecdbd394868942bf
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-util-0.3.5/src/future/future/fuse.rs:81:37
41: 0x10718756d - <core::pin::Pin

as core::future::future::Future>::poll::h629ac43518d2cdf6
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/future.rs:119:9
42: 0x107186b6b - <&mut F as core::future::future::Future>::poll::hc3ce9c0657b4e780
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/future.rs:107:9
43: 0x1071ccba1 - <sqlx_core::ext::async_stream::TryAsyncStream as futures_core::stream::Stream>::poll_next::hb42bab1eb5e2cbd7
at .cargo/git/checkouts/sqlx-f05f33ba4f5c3036/d97014f/sqlx-core/src/ext/async_stream.rs:51:17
44: 0x1071877bd - <core::pin::Pin

as futures_core::stream::Stream>::poll_next::h802af018b71d1011
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-core-0.3.5/src/stream.rs:121:9
45: 0x10718679c - ::try_poll_next::h0b581bff04812d79
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-core-0.3.5/src/stream.rs:193:9
46: 0x1071482c4 - futures_util::stream::try_stream::TryStreamExt::try_poll_next_unpin::h66185ad1007e2eab
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-util-0.3.5/src/stream/try_stream/mod.rs:811:9
47: 0x107150f21 - <futures_util::stream::try_stream::try_next::TryNext as core::future::future::Future>::poll::h25083947aed14099
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-util-0.3.5/src/stream/try_stream/try_next.rs:35:9
48: 0x10714450e - sqlx_core::pool::executor::<impl sqlx_core::executor::Executor for &sqlx_core::pool::Pool>::fetch_many::{{closure}}::{{closure}}::h1b699a21fc71e738
at .cargo/git/checkouts/sqlx-f05f33ba4f5c3036/d97014f/sqlx-core/src/pool/executor.rs:31:33
49: 0x10714b8c6 - <core::future::from_generator::GenFuture as core::future::future::Future>::poll::h7cde9579c1b8b363
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/mod.rs:80:19
50: 0x10716755d - sqlx_core::ext::async_stream::TryAsyncStream::new::{{closure}}::hc1440a0e65881e9f
at .cargo/git/checkouts/sqlx-f05f33ba4f5c3036/d97014f/sqlx-core/src/ext/async_stream.rs:28:33
51: 0x10714bfe6 - <core::future::from_generator::GenFuture as core::future::future::Future>::poll::hf924cbbbe25d49e8
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/mod.rs:80:19
52: 0x1071466e0 - <futures_util::future::future::fuse::Fuse as core::future::future::Future>::poll::h92a1fe69a3113931
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-util-0.3.5/src/future/future/fuse.rs:81:37
53: 0x10718756d - <core::pin::Pin

as core::future::future::Future>::poll::h629ac43518d2cdf6
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/future.rs:119:9
54: 0x107186b6b - <&mut F as core::future::future::Future>::poll::hc3ce9c0657b4e780
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/future.rs:107:9
55: 0x1071ccba1 - <sqlx_core::ext::async_stream::TryAsyncStream as futures_core::stream::Stream>::poll_next::hb42bab1eb5e2cbd7
at .cargo/git/checkouts/sqlx-f05f33ba4f5c3036/d97014f/sqlx-core/src/ext/async_stream.rs:51:17
56: 0x1071877bd - <core::pin::Pin

as futures_core::stream::Stream>::poll_next::h802af018b71d1011
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-core-0.3.5/src/stream.rs:121:9
57: 0x10718679c - ::try_poll_next::h0b581bff04812d79
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-core-0.3.5/src/stream.rs:193:9
58: 0x107157dd7 - <futures_util::stream::try_stream::try_filter_map::TryFilterMap<St,Fut,F> as futures_core::stream::Stream>::poll_next::h1d953a6dddeecb06
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-util-0.3.5/src/stream/try_stream/try_filter_map.rs:75:47
59: 0x10714936d - <core::pin::Pin

as futures_core::stream::Stream>::poll_next::h58e02f7bf8dd4a60
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-core-0.3.5/src/stream.rs:121:9
60: 0x107148f4c - ::try_poll_next::hf4d9f3ee7bceb856
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-core-0.3.5/src/stream.rs:193:9
61: 0x107149421 - <futures_util::stream::try_stream::try_collect::TryCollect<St,C> as core::future::future::Future>::poll::hf6cad907aa7a6c61
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/futures-util-0.3.5/src/stream/try_stream/try_collect.rs:52:26
62: 0x10714926d - <core::pin::Pin

as core::future::future::Future>::poll::haf7d833ba6959768
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/future.rs:119:9
63: 0x1071643e2 - sqlx_core::query::Query<DB,A>::fetch_all::{{closure}}::hfcc8995ac14f43f5
at .cargo/git/checkouts/sqlx-f05f33ba4f5c3036/d97014f/sqlx-core/src/query.rs:199:9
64: 0x10714bbac - <core::future::from_generator::GenFuture as core::future::future::Future>::poll::hcce49a973e3e350d
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/mod.rs:80:19
65: 0x107158abf - matcher::main::main::{{closure}}::h102583405654f977
at wzj-items/rust-matcher/src/main.rs:10:18
66: 0x10714bce3 - <core::future::from_generator::GenFuture as core::future::future::Future>::poll::he3f919adfa58c0d6
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/mod.rs:80:19
67: 0x107158617 - matcher::main::{{closure}}::h09361284d329c43e
at wzj-items/rust-matcher/src/main.rs:4:1
68: 0x10714ba03 - <core::future::from_generator::GenFuture as core::future::future::Future>::poll::h883ce709b60a5573
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/future/mod.rs:80:19
69: 0x107140df7 - <async_std::task::builder::SupportTaskLocals as core::future::future::Future>::poll::{{closure}}::h6e382f4038054132
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/async-std-1.6.2/src/task/builder.rs:198:17
70: 0x10714e072 - async_std::task::task_locals_wrapper::TaskLocalsWrapper::set_current::{{closure}}::hb0c340321ed4bf8f
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/async-std-1.6.2/src/task/task_locals_wrapper.rs:60:13
71: 0x10715cbb3 - std::thread::local::LocalKey::try_with::h760f8d38db14462f
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:272:16
72: 0x10715c00e - std::thread::local::LocalKey::with::h107833b645fceaf3
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:248:9
73: 0x10714dcde - async_std::task::task_locals_wrapper::TaskLocalsWrapper::set_current::h73332c86c8c14bee
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/async-std-1.6.2/src/task/task_locals_wrapper.rs:55:9
74: 0x107140d43 - <async_std::task::builder::SupportTaskLocals as core::future::future::Future>::poll::h6e7cd3cc6a2a7989
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/async-std-1.6.2/src/task/builder.rs:196:13
75: 0x1071460c5 - smol::run::run::{{closure}}::{{closure}}::h5b088a5f83354585
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/smol-0.1.18/src/run.rs:119:43
76: 0x107159092 - scoped_tls::ScopedKey::set::h5dd769611b3def97
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/scoped-tls-1.0.0/src/lib.rs:137:9
77: 0x107146024 - smol::run::run::{{closure}}::h2afe1530f9ac30a3
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/smol-0.1.18/src/run.rs:116:9
78: 0x107156c9b - tokio::runtime::context::enter::h8bd4d276fb38b868
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/tokio-0.2.22/src/runtime/context.rs:72:5
79: 0x1071572ac - tokio::runtime::handle::Handle::enter::h747d5b335cd0961c
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/tokio-0.2.22/src/runtime/handle.rs:76:9
80: 0x1071577a2 - tokio::runtime::Runtime::enter::hac47791bf97e5079
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/tokio-0.2.22/src/runtime/mod.rs:486:9
81: 0x10714ec0a - smol::context::enter::{{closure}}::hc42ecaf0e1a3a278
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/smol-0.1.18/src/context.rs:27:17
82: 0x10715ce7b - std::thread::local::LocalKey::try_with::ha1d1583c60af9489
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:272:16
83: 0x10715c206 - std::thread::local::LocalKey::with::h58fe87960671f321
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:248:9
84: 0x10714e891 - smol::context::enter::h7a8cd4415b4e1f03
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/smol-0.1.18/src/context.rs:24:9
85: 0x107145ee1 - smol::run::run::hec420aad4917b0d7
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/smol-0.1.18/src/run.rs:115:5
86: 0x107141e1f - async_std::task::builder::Builder::blocking::{{closure}}::{{closure}}::hc66bf50f5aa68d4e
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/async-std-1.6.2/src/task/builder.rs:170:25
87: 0x10714de9d - async_std::task::task_locals_wrapper::TaskLocalsWrapper::set_current::{{closure}}::h38ab7a2e2822eca2
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/async-std-1.6.2/src/task/task_locals_wrapper.rs:60:13
88: 0x10715c6a2 - std::thread::local::LocalKey::try_with::h461b2ffb1eea8845
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:272:16
89: 0x10715c172 - std::thread::local::LocalKey::with::h4d7856f3cbb0a23a
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:248:9
90: 0x10714dd71 - async_std::task::task_locals_wrapper::TaskLocalsWrapper::set_current::hc097222b08ac59f8
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/async-std-1.6.2/src/task/task_locals_wrapper.rs:55:9
91: 0x107141ce7 - async_std::task::builder::Builder::blocking::{{closure}}::h2867c9bb4b647004
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/async-std-1.6.2/src/task/builder.rs:167:17
92: 0x10715ca42 - std::thread::local::LocalKey::try_with::h51730cf22fad0410
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:272:16
93: 0x10715c2a2 - std::thread::local::LocalKey::with::h662e72047f592d70
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/thread/local.rs:248:9
94: 0x107141ba8 - async_std::task::builder::Builder::blocking::h1014315380c198cc
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/async-std-1.6.2/src/task/builder.rs:160:9
95: 0x1071481e3 - async_std::task::block_on::block_on::h75574f113bb34ed1
at .cargo/registry/src/mirrors.tuna.tsinghua.edu.cn-b667284cefd1bd08/async-std-1.6.2/src/task/block_on.rs:33:5
96: 0x107162d09 - matcher::main::h6ff127aa444e5111
at wzj-items/rust-matcher/src/main.rs:4:1
97: 0x10713d1a5 - core::ops::function::FnOnce::call_once::h10fb62aec5859f77
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/core/src/ops/function.rs:227:5
98: 0x107162b6c - std::sys_common::backtrace::__rust_begin_short_backtrace::h9f4d65a3199f11c8
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/sys_common/backtrace.rs:125:18
99: 0x107156528 - std::rt::lang_start::{{closure}}::hc945a4e0e37cb990
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/rt.rs:66:18
100: 0x107653d54 - core::ops::function::impls::<impl core::ops::function::FnOnce for &F>::call_once::h8e7f1f8f54430f80
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/core/src/ops/function.rs:259:13
101: 0x107653d54 - std::panicking::try::do_call::h14055182fb11f767
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/panicking.rs:381:40
102: 0x107653d54 - std::panicking::try::h2a6baf4c457ae4d0
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/panicking.rs:345:19
103: 0x107653d54 - std::panic::catch_unwind::hbe726183f4d89556
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/panic.rs:382:14
104: 0x107653d54 - std::rt::lang_start_internal::he8007b277bc5e1b2
at /rustc/043eca7f0b34d12e61c44206beca740628647080/library/std/src/rt.rs:51:25
105: 0x107156501 - std::rt::lang_start::hfe31f9f69cee006e
at .rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library/std/src/rt.rs:65:5
106: 0x107162d82 - _main

[Json1949]

Can you please post more of the stack trace? It sounds like a bug in linked_hash_map.

If I re-create a new project, it can run successfully, and I copy someone else’s project and run it wrong.

[abonander]

It may not trigger all the time in every circumstance. The location of the panic strongly suggests a bug with linked-hash-map, not SQLx.

[chertov]

I have the same error with rust 1.48:

thread 'main' panicked at 'attempted to leave type `linked_hash_map::Node<std::string::String, (u32, std::sync::Arc<postgres::statement::PgStatementMetadata>)>` uninitialized, which is invalid'

https://github.com/rust-lang/rust/blob/master/RELEASES.md#L39
mem::uninitialized will now panic if any inner types inside a struct or enum disallow zero-initialization.

lru_cache and linked_hash_map is not maintained anymore
Some projects replaced it with hashlink
https://github.com/bluejekyll/trust-dns/pull/1301
rusqlite/rusqlite#811

[VersBinarii]

I also just came across this issue on the rustc 1.48 with the postgres feature