0.15.0 Build error with Nix, and a test failure on latest master

[doronbehar]

Hello,

Recently on NixOS we encountered the following build error on our CI:

https://cache.nixos.org/log/mhksk5hxip92z7k523wkpfd73n690lgz-tectonic-0.15.0.drv

I suspected first it is related to icu 75->76 upgrade, but apparently it's not. I suspect it is related to GCC 14 upgrade. I don't experience this error when building against c2ae25f , but I experience a test failure:

tectonic> running 5 tests
tectonic> test errors::tests::test_def_same_option ... ok
tectonic> test errors::tests::test_def_same_box_err ... ok
tectonic> test errors::tests::test_def_same_err ... ok
tectonic> test io::memory::tests::shrinking_file ... ok
tectonic> test tests::no_segfault_after_failed_compilation ... FAILED
tectonic> failures:
tectonic> ---- tests::no_segfault_after_failed_compilation stdout ----
tectonic> thread 'tests::no_segfault_after_failed_compilation' panicked at /build/tectonic-0.15.0-unstable-2025-02-21-vendor/reqwest-0.12.12/src/blocking/client.rs:1047:38:
tectonic> Client::new(): reqwest::Error { kind: Builder, source: Normal(ErrorStack([])) }
tectonic> note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
tectonic> failures:
tectonic>     tests::no_segfault_after_failed_compilation
tectonic> test result: FAILED. 4 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
tectonic> error: test failed, to rerun pass `--lib

[bryango]

I think it may be hard to fix the build on Nix for the 0.15.0 release (also it seems it's only failing on linux with gcc, darwin builds are fine). Let's just switch to master. It seems to me that the failure here is because it tries to access the internet and fails to do so within the build sandbox as it returns reqwest::Error:

tectonic> thread 'tests::no_segfault_after_failed_compilation' panicked at /build/tectonic-0.15.0-unstable-2025-02-21-vendor/reqwest-0.12.12/src/blocking/client.rs:1047:38:
tectonic> Client::new(): reqwest::Error { kind: Builder, source: Normal(ErrorStack([])) }

... but I don't understand why it didn't fail before...

Update: for nixpkgs we eventually decided to fix the 0.15.0 release and ignore the master failures for the moment until it is resolved upstream (i.e. here).

[GuillaumeDIDIER]

Any update ? This sort of build failure is problematic.

[doronbehar]

This was fixed on our end with:

• tectonic-unwrapped: fix build with icu 75 NixOS/nixpkgs#392621

See https://nixpk.gs/pr-tracker.html?pr=392621 .

[HerrMuellerluedenscheid]

Having the issue on Apple silicon. How about creating a release?

[GuillaumeDIDIER]

I tested master, and it indeed solved things for me, so I second this question about making a new release (which hasn't happened in a year).

[doronbehar]

See also:

• Seeking co-maintainers #1122

[CraftSpider]

While I am a maintainer of tectonic, I unfortunately do not have the ability to cut a release. @pkgw will need to be the one to do so when he has time.

[ilyapopov]

The same problem started happening on upgrade to Ubuntu 25.04 (to be released on Apr 17).

Update Master branch works.