Tracing tests fail on wasm since Rust 1.82.0

Bug Report

The tracing crate tests are failing when being run on wasm since Rust 1.82.0.

For example: https://github.com/tokio-rs/tracing/actions/runs/11579459399/job/32235756245?pr=3122

This is likely related to a similar issue in Tokio tokio-rs/tokio#6910. A comment from Alex Crichton suggests that until a fix is available for wasm-bindgen, we can either pin Rust to 1.81 or update Node to 20.x on the CI runners.

In Tokio, the wasm tests have been pinned to Rust 1.81.0 for the time being, a similar approach is probably a good mitigation here.

Version

tracing master branch
Rust 1.82.0

Platform

Crates

tracing

Description

It's only the tests in the tracing crate that fail, the other crates' tests all pass fine.

The first test to fail is tests/collector.rs, but that may just be the first test that can run under wasm.

The output is (taken from the PR 3122 link above:

Running tests/collector.rs (/home/runner/work/tracing/tracing/target/wasm32-unknown-unknown/debug/deps/collector-8e3da526b5224461.wasm)

Set timeout to 20 seconds...
Executing bindgen...                              

running 3 tests

Stacktrace:
    ptr1=0x35dcbe813299
    ptr2=(nil)
  [03] : 0x315e73720ba9 <Module map = 0x258183f2a231>
  [02] : 0x3faebe9015b9 <undefined>
  [01] : 0x315e7371f479 <String[111]: c"/home/runner/work/tracing/tracing/target/wasm32-unknown-unknown/wbg-tmp-collector-8e3da526b5224461.wasm/run.cjs">
  [00] : 0x3faebe9015b9 <undefined>
--------- s o u r c e   c o d e ---------
function (request, parent, isMain) {\x0a  let relResolveCacheIdentifier;\x0a  if (parent) {\x0a    debug('Module._load REQUEST %s parent: %s', request, parent.id);\x0a    // Fast path for (lazy loaded) modules in the same directory. The indirect\x0a    // caching is required to allow cache invalidation without changing the...

-----------------------------------------
}

[19]: runMain(aka executeUserEntryPoint) [0x2209bc73eea9] [node:internal/modules/run_main:128] [bytecode=0x136784902d1 offset=87](this=0x2209bc718bf9 <JSFunction Module (sfi = 0x1df36d3612b1)>,0x315e73716679 <String[111]: c"/home/runner/work/tracing/tracing/target/wasm32-unknown-unknown/wbg-tmp-collector-8e3da526b5224461.wasm/run.cjs">) {
  // expression stack (top to bottom)
  [12] : 0x2209bc718bf9 <JSFunction Module (sfi = 0x1df36d3612b1)>
  [11] : 0x315e73716679 <String[111]: c"/home/runner/work/tracing/tracing/target/wasm32-unknown-unknown/wbg-tmp-collector-8e3da526b5224461.wasm/run.cjs">
  [10] : 0x3faebe901339 <null>
  [09] : 0x3faebe901729 <true>
  [08] : 0x3faebe901729 <true>
  [07] : 0x3faebe901339 <null>
  [06] : 0x315e73716679 <String[111]: c"/home/runner/work/tracing/tracing/target/wasm32-unknown-unknown/wbg-tmp-collector-8e3da526b5224461.wasm/run.cjs">
  [05] : 0x2209bc718bf9 <JSFunction Module (sfi = 0x1df36d3612b1)>
  [04] : 0x2209bc719571 <JSFunction Module._load (sfi = 0x1df36d361c81)>
  [03] : 0x2209bc718bf9 <JSFunction Module (sfi = 0x1df36d3612b1)>
  [02] : 0x3faebe901789 <false>
  [01] : 0x315e7371f479 <String[111]: c"/home/runner/work/tracing/tracing/target/wasm32-unknown-unknown/wbg-tmp-collector-8e3da526b5224461.wasm/run.cjs">
  [00] : 0x315e73716679 <String[111]: c"/home/runner/work/tracing/tracing/target/wasm32-unknown-unknown/wbg-tmp-collector-8e3da526b5224461.wasm/run.cjs">
--------- s o u r c e   c o d e ---------
function executeUserEntryPoint(main = process.argv[1]) {\x0a  const resolvedMain = resolveMainPath(main);\x0a  const useESMLoader = shouldUseESMLoader(resolvedMain);\x0a  if (useESMLoader) {\x0a    runMainESM(resolvedMain || main);\x0a  } else {\x0a    // Module._load is the monkey-patchable CJS module loader.\x0a    const { Module } = require('inte...

-----------------------------------------
}

[20]: /* anonymous */(aka /* anonymous */) [0x315e737072e1] [node:internal/main/run_main_module:28] [bytecode=0x13678485929 offset=112](this=0x3faebe9015b9 <undefined>,0x2209bc702ef1 <process map = 0x258183f290c1>,0x2209bc703661 <JSFunction requireBuiltin (sfi = 0x1b5e2994fc59)>,0x2209bc7035e1 <JSFunction internalBinding (sfi = 0x1b5e2994f211)>,0x0a7e4960ecb1 <Object map = 0x258183f26889>) {
  // expression stack (top to bottom)
  [09] : 0x2209bc718bf9 <JSFunction Module (sfi = 0x1df36d3612b1)>
  [08] : 0x315e73716679 <String[111]: c"/home/runner/work/tracing/tracing/target/wasm32-unknown-unknown/wbg-tmp-collector-8e3da526b5224461.wasm/run.cjs">
  [07] : 0x0136784856c1 <String[27]: #internal/modules/cjs/loader>
  [06] : 0x2209bc718bf9 <JSFunction Module (sfi = 0x1df36d3612b1)>
  [05] : 0x2209bc73eea9 <JSFunction executeUserEntryPoint (sfi = 0x1df36d375289)>
  [04] : 0x315e73716679 <String[111]: c"/home/runner/work/tracing/tracing/target/wasm32-unknown-unknown/wbg-tmp-collector-8e3da526b5224461.wasm/run.cjs">
  [03] : 0x2209bc7084b1 <JSFunction getOptionValue (sfi = 0x318cf4cca9a1)>
  [02] : 0x0a7e49601369 <JSFunction markBootstrapComplete (sfi = 0x1df36d36f221)>
  [01] : 0x0a7e496012b9 <JSFunction prepareMainThreadExecution (sfi = 0x1df36d36e489)>
  [00] : 0x2209bc703ad9 <JSBoundFunction (BoundTargetFunction 0x2209bc7036e9)>
--------- s o u r c e   c o d e ---------
function 'use strict';\x0a\x0aconst { RegExpPrototypeExec } = primordials;\x0a\x0aconst {\x0a  prepareMainThreadExecution,\x0a  markBootstrapComplete,\x0a} = require('internal/process/pre_execution');\x0aconst { getOptionValue } = require('internal/options');\x0a\x0aconst mainEntry = prepareMainThreadExecution(true);\x0a\x0amarkBootstrapComple...

-----------------------------------------
}

[21]: InternalFrame [pc: 0x16946dc]
[22]: EntryFrame [pc: 0x1694403]
=====================

tokio-rs / tracing