The application panicked (crashed) when Address already in use

[ckujau]

Upon upgrading from 0.5.0-beta2 to 0.5.0 I was greeted with this:

$ ./sthp-macos-0.5.0 --version; ./sthp-macos-0.5.0; echo $?
sthp 0.5.0
The application panicked (crashed).
Message:  Failed to run program: 
   0: Address already in use (os error 48)

Backtrace omitted. Run with RUST_BACKTRACE=1 environment variable to display it.
Run with RUST_BACKTRACE=full to include source snippets.
Location: src/main.rs:82

Backtrace omitted. Run with RUST_BACKTRACE=1 environment variable to display it.
Run with RUST_BACKTRACE=full to include source snippets.
101

Of course, I forgot to add the options to have it use another port that's not currently in use but that "The application panicked" error was kinda unexpected. With the beta2 version the error message is much more user friendly and the application did not crash:

./sthp-macos-0.5.0-beta2 --version; ./sthp-macos-0.5.0-beta2; echo $?
sthp 0.5.0-beta2
Error: 
   0: Address already in use (os error 48)

Backtrace omitted. Run with RUST_BACKTRACE=1 environment variable to display it.
Run with RUST_BACKTRACE=full to include source snippets.
1

[ckujau]

And again, for completeness’ sake, with RUST_BACKTRACE=full:

$ RUST_BACKTRACE=full  ./sthp-macos-0.5.0
The application panicked (crashed).
Message:  Failed to run program: 
   0: Address already in use (os error 48)

  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ BACKTRACE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
                                ⋮ 5 frames hidden ⋮                               
   6: tokio::runtime::park::CachedParkThread::block_on::h9bfc6d875b3f70a3
      at <unknown source file>:<unknown line>
   7: tokio::runtime::runtime::Runtime::block_on::hdac1793f102fab9c
      at <unknown source file>:<unknown line>
   8: sthp::main::h20c9a5955586e36e
      at <unknown source file>:<unknown line>
   9: std::sys::backtrace::__rust_begin_short_backtrace::h94ca9425b43e5c15
      at <unknown source file>:<unknown line>
  10: std::rt::lang_start::{{closure}}::hbaf35922e1b524f0
      at <unknown source file>:<unknown line>
  11: std::rt::lang_start_internal::hdb28e94b6865fa11
      at <unknown source file>:<unknown line>
  12: _main<unknown>
      at <unknown source file>:<unknown line>

Run with COLORBT_SHOW_HIDDEN=1 environment variable to disable frame filtering.
Location: src/main.rs:82

  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ BACKTRACE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
                                ⋮ 9 frames hidden ⋮                               
  10: sthp::main::h20c9a5955586e36e
      at <unknown source file>:<unknown line>
  11: std::sys::backtrace::__rust_begin_short_backtrace::h94ca9425b43e5c15
      at <unknown source file>:<unknown line>
  12: std::rt::lang_start::{{closure}}::hbaf35922e1b524f0
      at <unknown source file>:<unknown line>
  13: std::rt::lang_start_internal::hdb28e94b6865fa11
      at <unknown source file>:<unknown line>
  14: _main<unknown>
      at <unknown source file>:<unknown line>

Run with COLORBT_SHOW_HIDDEN=1 environment variable to disable frame filtering.

I haven't started a git bisect yet, maybe something for later today.

[ckujau]

Hm, that did not work as expected:

$ cat ~/b.sh
git checkout main
git reset --hard
echo
git rev-parse HEAD && git ls-remote origin main

git bisect reset
git bisect start
git bisect bad
git bisect good 0.5.0-beta2

for i in {1..20}; do
        echo "### i: ${i}"
        git clean -dfx
        cargo build --release --quiet
        target/release/sthp
        RC=$?
        if [ ${RC} = 1 ]; then
                echo
                echo "### GOOD / RC ${RC}"
                git bisect good
                git bisect log | grep -q 'first bad commit' && break
        else
                echo
                echo "### BAD  / RC ${RC}"
                git bisect bad
                git bisect log | grep -q 'first bad commit' && break
        fi
done

$ sh ~/b.sh
[...]
faa5e8c0b1454dcc4b0d21c5f6ad122b909673c0 is the first bad commit
commit faa5e8c0b1454dcc4b0d21c5f6ad122b909673c0
Author: zephyr <i@zephyr.moe>
Date:   Mon Aug 18 01:56:50 2025 +0900

    fix daemonize

 src/main.rs | 35 +++++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 14 deletions(-)

...but that version appears to behave just fine and doesn't produce an application crash, weird. 🤔