Final binary does not contain filename and line numer in backtrace

[wonrax]

Anyone know why the produced binary doesn’t include file names and line numbers in backtrace frames (backtrace-rs), only module names and hex addresses? When I build “normally” with cargo on the host, they show up as expected.

packages.myPkg =
  let
    commonArgs = {
      src = craneLib.cleanCargoSource ./.;
      strictDeps = true;

      CARGO_PROFILE = "release";

      inherit nativeBuildInputs buildInputs;
    };
  in
  craneLib.buildPackage (
    commonArgs
    // {
      cargoArtifacts = craneLib.buildDepsOnly commonArgs;
    }
  );

Backtrace from binary built by crane:

stack backtrace:
   0:        0x1056348b4 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h373e57e2286956dc
   1:        0x1056521cc - core::fmt::write::h2c4a0b98b09e3b30
   2:        0x1056310fc - std::io::Write::write_fmt::h00b4007fff731b84
   3:        0x105634768 - std::sys::backtrace::BacktraceLock::print::h3eb1535b8d3666ca
   4:        0x105635abc - std::panicking::default_hook::{{closure}}::hf623c44b740b115f
   5:        0x10563590c - std::panicking::default_hook::h8875fb31ec87dfad
   6:        0x105636544 - std::panicking::rust_panic_with_hook::hdd8ceeeb04975c2b
   7:        0x105636178 - std::panicking::begin_panic_handler::{{closure}}::hdf417b72ab8ffff8
   8:        0x105634d60 - std::sys::backtrace::__rust_end_short_backtrace::h507d79c50996742e
   9:        0x105635e54 - __rustc[5224e6b81cd82a8f]::rust_begin_unwind
  10:        0x105693dc0 - core::panicking::panic_fmt::h3505bfbec5a0b799
  11:        0x1056940f8 - core::result::unwrap_failed::h7f68c62f4ec5b70e

Backtrace from binary "normally" built on host:

stack backtrace:
   0: __rustc::rust_begin_unwind
             at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/std/src/panicking.rs:697:5
   1: core::panicking::panic_fmt
             at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/core/src/panicking.rs:75:14
   2: core::result::unwrap_failed
             at /rustc/29483883eed69d5fb4db01964cdf2af4d86e9cb2/library/core/src/result.rs:1761:5
   3: core::result::Result<T,E>::expect
             at /nix/store/a6csdizvbrdcdxwcbvvjhfkn002jf09p-rust-default-1.89.0/lib/rustlib/src/rust/library/core/src/result.rs:1119:23

[wonrax]

possibly related rust-lang/rust#101913

[dpc]

Quick guess, but

      dontStrip = true;

?

[ipetkov]

Cargo's default release profile does not include any debug info: https://doc.rust-lang.org/cargo/reference/profiles.html#release

You can override this in the Cargo.toml to include debug info even in release builds (and also set dontStrip = true;) and see if that helps

[wonrax]

I've always had debug = true set in profile.release in Cargo.toml. Still the same result, even with dontStrip = true; and RUST_BACKTRACE=full

[ipetkov]

Not entirely sure what's the cause then, would need to look at a (minimal) reproduction

[wonrax]

Not entirely sure what's the cause then, would need to look at a (minimal) reproduction

sorry I completely forgot about this. Here's the reproducible repo:
https://github.com/wonrax/crane-reproduce-backtrace

[ipetkov]

Thanks for the reproduction link! I'm running this on NixOS fwiw but sources seem to show up just fine for me:

RUST_BACKTRACE=full nix run github:wonrax/crane-reproduce-backtrace#myapp
thread 'main' panicked at src/main.rs:2:5:
explicit panic
stack backtrace:
   0:     0x5596074ed402 - std::backtrace_rs::backtrace::libunwind::trace::h2d45396358f41939
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
   1:     0x5596074ed402 - std::backtrace_rs::backtrace::trace_unsynchronized::hffcefc0b67f1d6e2
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
   2:     0x5596074ed402 - std::sys::backtrace::_print_fmt::hd72f71d23b436b92
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:66:9
   3:     0x5596074ed402 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hdcfcb6d4c8489523
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:39:26
   4:     0x559607508ad3 - core::fmt::rt::Argument::fmt::h2c56b3114963061a
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/rt.rs:173:76
   5:     0x559607508ad3 - core::fmt::write::h8a494366950f23bb
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/mod.rs:1468:25
   6:     0x5596074eb113 - std::io::default_write_fmt::ha27fbccbc65eb6fa
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:639:11
   7:     0x5596074eb113 - std::io::Write::write_fmt::h6556609fca33d0b1
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:1954:13
   8:     0x5596074ed252 - std::sys::backtrace::BacktraceLock::print::hb2a626a81e06b2dc
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:42:9
   9:     0x5596074ee2e3 - std::panicking::default_hook::{{closure}}::h4f78485264f12d10
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:300:27
  10:     0x5596074ee0c5 - std::panicking::default_hook::h2c66fc99e962531d
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:327:9
  11:     0x5596074eebb5 - std::panicking::rust_panic_with_hook::h33ac55f64bbd807d
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:833:13
  12:     0x5596074eea4a - std::panicking::begin_panic_handler::{{closure}}::h30e7cb89678a57fe
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:706:13
  13:     0x5596074ed8f9 - std::sys::backtrace::__rust_end_short_backtrace::hed60f27456c16ced
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174:18
  14:     0x5596074ee6dd - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697:5
  15:     0x559607507f60 - core::panicking::panic_fmt::h62f63d096dd276af
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:75:14
  16:     0x5596075080e6 - core::panicking::panic_display::h784ac6e2afc29348
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:268:5
  17:     0x5596075080e6 - core::panicking::panic_explicit::hd9d99d274044a3a9
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:241:5
  18:     0x5596074ccf1e - crane_reproduce_no_backtrace::main::panic_cold_explicit::hcac2766ec7efcffa
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic.rs:88:13
  19:     0x5596074ccf06 - crane_reproduce_no_backtrace::main::h57bde4048aca2c63
                               at /build/source/src/main.rs:2:5
  20:     0x5596074ccee3 - core::ops::function::FnOnce::call_once::hc5bc45a201e139d5
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
  21:     0x5596074ccee3 - std::sys::backtrace::__rust_begin_short_backtrace::h6e094d351b406ef2
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:158:18
  22:     0x5596074cced9 - std::rt::lang_start::{{closure}}::h2bbc479762f62b89
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:206:18
  23:     0x5596074e9060 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h638295a043b40957
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:290:21
  24:     0x5596074e9060 - std::panicking::catch_unwind::do_call::hbd68098bdea1ca50
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
  25:     0x5596074e9060 - std::panicking::catch_unwind::h50591d85bf847c7c
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
  26:     0x5596074e9060 - std::panic::catch_unwind::h2487b4c4f2ae22c6
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
  27:     0x5596074e9060 - std::rt::lang_start_internal::{{closure}}::h61f0945cc6c9a811
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:175:24
  28:     0x5596074e9060 - std::panicking::catch_unwind::do_call::h34b9c3722acd6bd1
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
  29:     0x5596074e9060 - std::panicking::catch_unwind::hf9a822ea043fb0d6
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
  30:     0x5596074e9060 - std::panic::catch_unwind::h5b3cac802237ed89
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
  31:     0x5596074e9060 - std::rt::lang_start_internal::h34f9328d113fd60a
                               at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:171:5
  32:     0x5596074ccf4c - main
  33:     0x7f22354f347e - __libc_start_call_main
  34:     0x7f22354f3539 - __libc_start_main_alias_1
  35:     0x5596074cce05 - _start
  36:                0x0 - <unknown>

[wonrax]

closing because it seems to happen only on macos