Package: rust-libc Version: 0.22-6-1 Severity: serious
rust-libc's autopkgtest failure is failing, this is happening in both the unstable->testing migration tests and the plain unstable tests and seems to be a blocker for getting rust-cbindgen back into testing. [libc 0.2.66] thread 'main' panicked at 'const-extern-fn requires a nightly compiler >= 1.40', build.rs:80:13 [libc 0.2.66] stack backtrace: [libc 0.2.66] 0: backtrace::backtrace::libunwind::trace [libc 0.2.66] at /usr/src/rustc-1.41.1/vendor/backtrace/src/backtrace/libunwind.rs:88 [libc 0.2.66] 1: backtrace::backtrace::trace_unsynchronized [libc 0.2.66] at /usr/src/rustc-1.41.1/vendor/backtrace/src/backtrace/mod.rs:66 [libc 0.2.66] 2: std::sys_common::backtrace::_print_fmt [libc 0.2.66] at src/libstd/sys_common/backtrace.rs:84 [libc 0.2.66] 3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt [libc 0.2.66] at src/libstd/sys_common/backtrace.rs:61 [libc 0.2.66] 4: core::fmt::write [libc 0.2.66] at src/libcore/fmt/mod.rs:1025 [libc 0.2.66] 5: std::io::Write::write_fmt [libc 0.2.66] at src/libstd/io/mod.rs:1426 [libc 0.2.66] 6: std::sys_common::backtrace::_print [libc 0.2.66] at src/libstd/sys_common/backtrace.rs:65 [libc 0.2.66] 7: std::sys_common::backtrace::print [libc 0.2.66] at src/libstd/sys_common/backtrace.rs:50 [libc 0.2.66] 8: std::panicking::default_hook::{{closure}} [libc 0.2.66] at src/libstd/panicking.rs:193 [libc 0.2.66] 9: std::panicking::default_hook [libc 0.2.66] at src/libstd/panicking.rs:210 [libc 0.2.66] 10: std::panicking::rust_panic_with_hook [libc 0.2.66] at src/libstd/panicking.rs:471 [libc 0.2.66] 11: std::panicking::begin_panic [libc 0.2.66] at /usr/src/rustc-1.41.1/src/libstd/panicking.rs:404 [libc 0.2.66] 12: build_script_build::main [libc 0.2.66] at ./build.rs:80 [libc 0.2.66] 13: std::rt::lang_start::{{closure}} [libc 0.2.66] at /usr/src/rustc-1.41.1/src/libstd/rt.rs:67 [libc 0.2.66] 14: std::rt::lang_start_internal::{{closure}} [libc 0.2.66] at src/libstd/rt.rs:52 [libc 0.2.66] 15: std::panicking::try::do_call [libc 0.2.66] at src/libstd/panicking.rs:292 [libc 0.2.66] 16: __rust_maybe_catch_panic [libc 0.2.66] at src/libpanic_unwind/lib.rs:78 [libc 0.2.66] 17: std::panicking::try [libc 0.2.66] at src/libstd/panicking.rs:270 [libc 0.2.66] 18: std::panic::catch_unwind [libc 0.2.66] at src/libstd/panic.rs:394 [libc 0.2.66] 19: std::rt::lang_start_internal [libc 0.2.66] at src/libstd/rt.rs:51 [libc 0.2.66] 20: std::rt::lang_start [libc 0.2.66] at /usr/src/rustc-1.41.1/src/libstd/rt.rs:67 [libc 0.2.66] 21: main [libc 0.2.66] 22: __libc_start_main [libc 0.2.66] 23: _start [libc 0.2.66] note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. error: failed to run custom build command for `libc v0.2.66 (/usr/share/cargo/registry/libc-0.2.66)`