Internal Server Error on fresh built image, thread '<unnamed>' (12) panicked at src/main.rs:174:40:

[technonerd33]

git clone
...
docker compose build
...

% curl http://127.0.0.1:3004/

Internal Server Error

An internal error has occurred on the server.

%

% docker compose logs
WARN[0000] /home/techno/code/neuters/docker-compose.yml: the attribute version is obsolete, it will be ignored, please remove it to avoid potential confusion
neuters | Fetching site hierarchy
neuters | Listening on http://0.0.0.0:13369
neuters | Failed to fetch site hierarchy
neuters |
neuters | thread '' (12) panicked at src/main.rs:174:40:
neuters | Section 'world' not found
neuters | stack backtrace:
neuters | 0: 0x7fa52e14a836 - std::backtrace_rs::backtrace::libunwind::trace::hf152dc6113026e70
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
neuters | 1: 0x7fa52e14a836 - std::backtrace_rs::backtrace::trace_unsynchronized::hd17bc8bf5350dd59
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
neuters | 2: 0x7fa52e14a836 - std::sys::backtrace::_print_fmt::h2774b7bfcf285ae5
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/sys/backtrace.rs:66:9
neuters | 3: 0x7fa52e14a836 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h34e77bc2681566bd
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/sys/backtrace.rs:39:26
neuters | 4: 0x7fa52e0daf9f - core::fmt::rt::Argument::fmt::h2d45e7c788986399
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/core/src/fmt/rt.rs:173:76
neuters | 5: 0x7fa52e0daf9f - core::fmt::write::h3122ebd171c45ff3
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/core/src/fmt/mod.rs:1468:25
neuters | 6: 0x7fa52e14a27f - std::io::default_write_fmt::h3c3309a74efdf055
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/io/mod.rs:639:11
neuters | 7: 0x7fa52e14a27f - std::io::Write::write_fmt::h935061b6a270c16e
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/io/mod.rs:1954:13
neuters | 8: 0x7fa52e14a583 - std::sys::backtrace::BacktraceLock::print::h8ef332bf498db167
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/sys/backtrace.rs:42:9
neuters | 9: 0x7fa52e149e41 - std::panicking::default_hook::{{closure}}::h217bbd83b0f95528
neuters | 10: 0x7fa52e149e41 - std::panicking::default_hook::h010556ea6365d446
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/panicking.rs:328:9
neuters | 11: 0x7fa52e149e41 - std::panicking::panic_with_hook::h2fdff5daf2c1e64c
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/panicking.rs:834:13
neuters | 12: 0x7fa52e16e955 - std::panicking::panic_handler::{{closure}}::heaa051467f71bbb4
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/panicking.rs:700:13
neuters | 13: 0x7fa52e16e8e9 - std::sys::backtrace::__rust_end_short_backtrace::hf9090f62816495d2
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/sys/backtrace.rs:174:18
neuters | 14: 0x7fa52e16e8dc - __rustc[eb8946e36839644a]::rust_begin_unwind
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/panicking.rs:698:5
neuters | 15: 0x7fa52e07121f - core::panicking::panic_fmt::h7442bb3f4b2bb544
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/core/src/panicking.rs:75:14
neuters | 16: 0x7fa52e0c3e22 - neuters::main::{{closure}}::{{closure}}::hc895ae16039ae7d7
neuters | at /build/src/main.rs:174:40
neuters | 17: 0x7fa52e0c3e22 - core::option::Option::unwrap_or_else::h4579711089f70366
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/core/src/option.rs:1061:21
neuters | 18: 0x7fa52e0c3e22 - neuters::main::{{closure}}::h6d5c440cea643b2b
neuters | at /build/src/main.rs:174:22
neuters | 19: 0x7fa52e0c3e22 - rouille::Server::process::{{closure}}::{{closure}}::hadc3814e3ffba3ea
neuters | at /usr/local/cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rouille-3.6.2/src/lib.rs:604:21
neuters | 20: 0x7fa52e0bdb27 - std::panicking::catch_unwind::do_call::h4ee8369b35977646
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/panicking.rs:590:40
neuters | 21: 0x7fa52e0bdb27 - std::panicking::catch_unwind::h8fd496e34f86de40
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/panicking.rs:553:19
neuters | 22: 0x7fa52e0bdb27 - std::panic::catch_unwind::he5c115e100185cb4
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/panic.rs:359:14
neuters | 23: 0x7fa52e0bdb27 - rouille::Server::process::{{closure}}::h259a9bbcfe5e9dc3
neuters | at /usr/local/cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rouille-3.6.2/src/lib.rs:602:27
neuters | 24: 0x7fa52e088f8d - rouille::Executor::execute::{{closure}}::h1ecbf0c38f71b710
neuters | at /usr/local/cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rouille-3.6.2/src/lib.rs:293:21
neuters | 25: 0x7fa52e088f8d - std::sys::backtrace::rust_begin_short_backtrace::he83b25c6ca3ad776
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/sys/backtrace.rs:158:18
neuters | 26: 0x7fa52e09200a - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hefa30853c33047c6
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/thread/mod.rs:559:17
neuters | 27: 0x7fa52e09200a - <core::panic::unwind_safe::AssertUnwindSafe as core::ops::function::FnOnce<()>>::call_once::h351f1ab333f073f2
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/core/src/panic/unwind_safe.rs:274:9
neuters | 28: 0x7fa52e09200a - std::panicking::catch_unwind::do_call::h9d2d50271d9b4a0b
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/panicking.rs:590:40
neuters | 29: 0x7fa52e09200a - std::panicking::catch_unwind::he2318e476b2bbbaa
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/panicking.rs:553:19
neuters | 30: 0x7fa52e09200a - std::panic::catch_unwind::h904f0f249d6fb963
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/panic.rs:359:14
neuters | 31: 0x7fa52e09200a - std::thread::Builder::spawn_unchecked::{{closure}}::h14c896f21166488a
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/thread/mod.rs:557:30
neuters | 32: 0x7fa52e09200a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h99a4f4f83dc8af8a
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/core/src/ops/function.rs:250:5
neuters | 33: 0x7fa52e1766df - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce>::call_once::h8e84226618faa2b2
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/alloc/src/boxed.rs:1985:9
neuters | 34: 0x7fa52e1766df - std::sys::thread::unix::Thread::new::thread_start::h580002e4644ce481
neuters | at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/std/src/sys/thread/unix.rs:126:17

[DennisFaucher]

Same

[kousha789123]

new Dockerfile

# Build Stage
FROM rust:alpine AS builder

RUN apk add --no-cache musl-dev git ca-certificates

WORKDIR /build 
COPY . .

RUN cargo install --path .

# Final Image
FROM gcr.io/distroless/static

COPY --from=builder /etc/ssl/certs /etc/ssl/certs
COPY --from=builder /etc/ssl/cert.pem /etc/ssl/cert.pem
COPY --from=builder /usr/local/cargo/bin/neuters /

CMD ["./neuters", "--address", "0.0.0.0:13369"]

I tested it locally with Docker.

The Docker path itself now works with neuters/Dockerfile updated so the distroless runtime includes native CA certificates, then rebuilt with docker compose up --build -d. The container comes up and listens on http://localhost:3004.

What I verified:

• GET /about returns 200 OK, so the container, port mapping, and app process are fine.
• GET / returns 500 Internal Server Error.

Why / fails:

• On startup the app tries to fetch Reuters’ site hierarchy.
• Reuters is currently returning 401 with DataDome protection on the exact upstream endpoint this app uses.
• Because that hierarchy never loads, the app later panics on missing section '/world/'.

Relevant evidence:

• Container log: Failed to fetch site hierarchy
• Direct upstream check: Reuters responds 401 and x-datadome: protected

So the answer is: Docker works locally, but the homepage flow does not currently work against Reuters’ live upstream without an anti-bot workaround. The repo already has support for passing a --cookie header in src/main.rs, so the next likely path is wiring a valid Reuters/DataDome cookie into Compose and testing again.