proc macro server crashed!

[junknet]

OS: archlinux

This error occurs only on Linux!
Nothing wrong on Windows.

[bjorn3]

What do the logs say? You can find it in the output pane. It is one of the options starting with "rust analyzer".

[jogramming]

I'm also having this issue on stable

thread '<unnamed>' panicked at 'called `Option::unwrap()` on a `None` value', /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/scoped_cell.rs:62:51
stack backtrace:
   0:     0x7fe6a4357987 - std::backtrace_rs::backtrace::libunwind::trace::h746c3e9529d524bc
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
   1:     0x7fe6a4357987 - std::backtrace_rs::backtrace::trace_unsynchronized::h86340908ff889faa
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fe6a4357987 - std::sys_common::backtrace::_print_fmt::h43f85f9b18230404
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/sys_common/backtrace.rs:67:5
   3:     0x7fe6a4357987 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hc132ae1a5b5aa7cd
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/sys_common/backtrace.rs:46:22
   4:     0x7fe6a43cafac - core::fmt::write::hdf023a0036d2a25f
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/core/src/fmt/mod.rs:1078:17
   5:     0x7fe6a4349b02 - std::io::Write::write_fmt::h8580846154bcb66a
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/io/mod.rs:1519:15
   6:     0x7fe6a435b685 - std::sys_common::backtrace::_print::h7ee55fed88d107a3
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/sys_common/backtrace.rs:49:5
   7:     0x7fe6a435b685 - std::sys_common::backtrace::print::h54a7d3e52a524177
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/sys_common/backtrace.rs:36:9
   8:     0x7fe6a435b685 - std::panicking::default_hook::{{closure}}::h60921e857bf55a40
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/panicking.rs:208:50
   9:     0x7fe6a435b1da - std::panicking::default_hook::hf0f9afb1017317fc
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/panicking.rs:225:9
  10:     0x7fe6a406e846 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3cc9ac0a62f88aee
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/alloc/src/boxed.rs:1342:9
  11:     0x7fe6a4077bfb - proc_macro::bridge::client::<impl proc_macro::bridge::Bridge>::enter::{{closure}}::{{closure}}::h11f5a3b29dda0c18
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/client.rs:320:21
  12:     0x7fe6a435bf86 - std::panicking::rust_panic_with_hook::h8d66bf42b407aaea
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/panicking.rs:595:17
  13:     0x7fe6a435ba77 - std::panicking::begin_panic_handler::{{closure}}::hde71edcd925d0c5e
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/panicking.rs:495:13
  14:     0x7fe6a4357e4c - std::sys_common::backtrace::__rust_end_short_backtrace::h8a3c7d6cea578919
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/sys_common/backtrace.rs:141:18
  15:     0x7fe6a435ba09 - rust_begin_unwind
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/panicking.rs:493:5
  16:     0x7fe6a43c73c1 - core::panicking::panic_fmt::h20225113c4a2f8fd
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/core/src/panicking.rs:92:14
  17:     0x7fe6a43c730d - core::panicking::panic::h35b77276aa4b0c12
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/core/src/panicking.rs:50:5
  18:     0x7fe6a404f01c - core::option::Option<T>::unwrap::h54bf93eac68da79b
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/core/src/option.rs:386:21
  19:     0x7fe6a406ac2d - <proc_macro::bridge::scoped_cell::ScopedCell<T>::replace::PutBackOnDrop<T> as core::ops::drop::Drop>::drop::h9d1558b37b7ce08d
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/scoped_cell.rs:62:33
  20:     0x7fe6a407b092 - core::ptr::drop_in_place::h168f20c5744374d5
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/core/src/ptr/mod.rs:179:1
  21:     0x7fe6a406a879 - proc_macro::bridge::scoped_cell::ScopedCell<T>::replace::h7559a226a83fae86
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/scoped_cell.rs:76:5
  22:     0x7fe6a4077718 - proc_macro::bridge::client::BridgeState::with::{{closure}}::h8c68903219df10f8
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/client.rs:291:13
  23:     0x7fe6a406b529 - std::thread::local::LocalKey<T>::try_with::hbe13cbd2b799acc5
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/thread/local.rs:272:16
  24:     0x7fe6a406af53 - std::thread::local::LocalKey<T>::with::h877aa17e9b135b28
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/thread/local.rs:248:9
  25:     0x7fe6a4077632 - proc_macro::bridge::client::BridgeState::with::h0573290f80c5efb3
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/client.rs:290:9
  26:     0x7fe6a405b9d8 - proc_macro::bridge::client::<impl proc_macro::bridge::Bridge>::with::hd63d41d5fc6ba8fa
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/client.rs:329:9
  27:     0x7fe6a407739f - proc_macro::bridge::client::run_client::{{closure}}::{{closure}}::h9841cda49b13ced8
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/client.rs:375:13
  28:     0x7fe6a406a0e8 - proc_macro::bridge::scoped_cell::ScopedCell<T>::set::{{closure}}::hb8af0b5eaa76d707
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/scoped_cell.rs:80:33
  29:     0x7fe6a406a2e5 - proc_macro::bridge::scoped_cell::ScopedCell<T>::replace::h131a0b7afa35de66
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/scoped_cell.rs:75:9
  30:     0x7fe6a406a0c1 - proc_macro::bridge::scoped_cell::ScopedCell<T>::set::h58700fff6f55a935
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/scoped_cell.rs:80:9
  31:     0x7fe6a4077adf - proc_macro::bridge::client::<impl proc_macro::bridge::Bridge>::enter::{{closure}}::h290decab42fd2dea
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/client.rs:325:35
  32:     0x7fe6a406b0dd - std::thread::local::LocalKey<T>::try_with::h038c6090a65a1675
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/thread/local.rs:272:16
  33:     0x7fe6a406ae3d - std::thread::local::LocalKey<T>::with::h2ec691a2f0c7fa44
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/thread/local.rs:248:9
  34:     0x7fe6a405baad - proc_macro::bridge::client::<impl proc_macro::bridge::Bridge>::enter::hb91b185ad484ac46
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/client.rs:325:9
  35:     0x7fe6a4077224 - proc_macro::bridge::client::run_client::{{closure}}::h76ff7ebc0bf115a8
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/client.rs:370:9
  36:     0x7fe6a4069fd2 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5df6a2de05b787d4
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/panic.rs:322:9
  37:     0x7fe6a407a160 - std::panicking::try::do_call::h0b1b56a95f9ef3e8
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/panicking.rs:379:40
  38:     0x7fe6a407e19d - __rust_try
  39:     0x7fe6a407a080 - std::panicking::try::ha9e18ce4add5a399
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/panicking.rs:343:19
  40:     0x7fe6a406ade2 - std::panic::catch_unwind::h24435f3010f8ca8a
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/std/src/panic.rs:396:14
  41:     0x7fe6a407711c - proc_macro::bridge::client::run_client::hf6cebf074bb9d57b
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/client.rs:369:5
  42:     0x7fe6a4077cd1 - proc_macro::bridge::client::Client<fn(proc_macro::TokenStream) .> proc_macro::TokenStream>::expand1::run::h53bd9b9b160336ee
                               at /rustc/7efc097c4fe6e97f54a44cee91c56189e9ddb41c/library/proc_macro/src/bridge/client.rs:410:13
  43:     0x55f8c796fa48 - proc_macro_srv::proc_macro::bridge::server::run_server::h5ee9550ab5ee1902
  44:     0x55f8c7961c14 - proc_macro_srv::cli::run::h04ba2401482cac18
  45:     0x55f8c7929d5e - rust_analyzer::main::h03108b849acfca6a
  46:     0x55f8c79465c3 - std::sys_common::backtrace::__rust_begin_short_backtrace::h1ff5ed9d6d11628f
  47:     0x55f8c7946969 - std::rt::lang_start::{{closure}}::h42bd59eb70e1358f
  48:     0x55f8c8631ae7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::he179d32a5d10d957
                               at /rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library/core/src/ops/function.rs:259:13
  49:     0x55f8c8631ae7 - std::panicking::try::do_call::hcb3d5e7be089b2b4
                               at /rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library/std/src/panicking.rs:381:40
  50:     0x55f8c8631ae7 - std::panicking::try::h7ac93b0cd56fb701
                               at /rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library/std/src/panicking.rs:345:19
  51:     0x55f8c8631ae7 - std::panic::catch_unwind::h7b40e396c93a4fcd
                               at /rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library/std/src/panic.rs:382:14
  52:     0x55f8c8631ae7 - std::rt::lang_start_internal::h142b9cc66267fea1
                               at /rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library/std/src/rt.rs:51:25
  53:     0x55f8c792c342 - main
  54:     0x7fe6ae530152 - __libc_start_main
  55:     0x55f8c78f49d9 - _start
  56:                0x0 - <unknown>
thread panicked while panicking. aborting.
[ERROR proc_macro_api::process] proc macro server crashed, server process state: Ok(Some(ExitStatus(ExitStatus(132))))

[edwin0cheng]

it should be fixed in #7047, feel free to reopen it if you have any other issues.

[neo-clon]

I have the same error, how can fix?

[edwin0cheng]

@neo-clon Do you have more information about the crashed ? What is the actual error ? Are you using this week release ?

[neo-clon]

Yes I have the latest version.

The macros are from serde

This is my enviroment:

• Arch linux X64
• NVIM: 0.4.4
• rustc 1.48.0
• coc.nvim version: 0.0.80-cf0e8400a4
• coc-rust-analyzer 0.25.0
• rust-analyzer 1d53075 (stable channel)
• CocConfig:
  rust-analyzer.procMacro.enable: true
  rust-analyzer.cargo.loadOutDirsFromCheck: true

In vscode i have the same error and the output Rust Analyzer Language Server show this message
[ERROR proc_macro_api::process] proc macro server crashed, server process state: Ok(None)

And if add RA_LOG=info as env var i see this

[edwin0cheng]

I can't reproduce in current master (a9814fa) 👍

Maybe you could wait and see if it is fixed in coming nightly. If it is not still fixed, a minimal reprod will help a lot :)

[neo-clon]

I can reproduce in a new project

Only copy my Cargo.toml from my main project maybe is any dependency the problem

[dependencies]
actix-web = "3.3.2"
actix-web-httpauth = "0.5.0"
serde = { version = "1.0.118", features = ["derive"] }
serde_json = "1.0.61"
dotenv = "0.15.0"
log = "0.4.11"
env_logger = "0.8.2"
sqlx = { version = "0.4.2", default-features = false, features = [ "runtime-actix-rustls", "macros", "postgres", "chrono", "decimal", "json", "migrate", "uuid" ] }
chrono = { version = "0.4.19", features = ["serde"] }
jsonwebtoken = "7.2.0"
futures-util = "0.3.8"
snafu = "0.6.10"
reqwest = { version = "0.10.10", features = ["json"] }
redis = "0.19.0"
futures = "0.3.8"
regex = "1.4.2"
actix-cors = "0.5.3"
rust_decimal = { version = "1.9.0", default-features = false, features = ["std", "serde-float"] }
listenfd = "0.3.3"
uuid = { version = "0.8.1", default-features = false, features = ["serde"] }
actix-rt = "1.1.1"
rand = "0.8.0"
actix-files = "0.5.0"
async-trait = "0.1.42"

[neo-clon]

I have found which dependency causes the crash

sqlx = { version = "0.4.2", default-features = false, features = [ "runtime-actix-rustls", "macros", "postgres", "chrono", "decimal", "json", "migrate", "uuid" ] }

[edwin0cheng]

sqlx = { version = "0.4.2", default-features = false, features = [ "runtime-actix-rustls", "macros", "postgres", "chrono", "decimal", "json", "migrate", "uuid" ] }

Oh, our old friend sqlx ! It seem to not related to this issue. :)

Would you mind to open an new issue for that ?

[neo-clon]

Yes i can open the issue, but in this repo or in slqx? hahaha in sqlx it will stay for a long time without movement XD

[edwin0cheng]

In this repo.

Actually it is our bug to make sure every usage is not crashing the server.

[neo-clon]

Excellent, thank you very much for your help!