[INFO] fetching crate core-mqtt-agent 0.1.1...
[INFO] testing core-mqtt-agent-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate core-mqtt-agent 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate core-mqtt-agent 0.1.1
[INFO] finished tweaking crates.io crate core-mqtt-agent 0.1.1
[INFO] tweaked toml for crates.io crate core-mqtt-agent 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate core-mqtt-agent 0.1.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 60 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92f3ba346da2d6fea2c258d9f52ddb3fdf1fe1f00280372939da77400093b488
[INFO] running `Command { std: "docker" "start" "-a" "92f3ba346da2d6fea2c258d9f52ddb3fdf1fe1f00280372939da77400093b488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92f3ba346da2d6fea2c258d9f52ddb3fdf1fe1f00280372939da77400093b488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92f3ba346da2d6fea2c258d9f52ddb3fdf1fe1f00280372939da77400093b488", kill_on_drop: false }`
[INFO] [stdout] 92f3ba346da2d6fea2c258d9f52ddb3fdf1fe1f00280372939da77400093b488
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 138ad46b1bfd6f15a6f70d21e258560c4f414560a5d9f9c617799ac549649765
[INFO] running `Command { std: "docker" "start" "-a" "138ad46b1bfd6f15a6f70d21e258560c4f414560a5d9f9c617799ac549649765", kill_on_drop: false }`
[INFO] [stderr]    Compiling core-mqtt-sys v0.1.1
[INFO] [stderr] error: failed to run custom build command for `core-mqtt-sys v0.1.1`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/core-mqtt-sys-0aa54729c22dd9ca/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rustc-link-lib=core_mqtt
[INFO] [stderr]   cargo:rerun-if-changed=wrapper.h
[INFO] [stderr]   cargo:rerun-if-changed=./coreMQTT/source/include/core_mqtt.h
[INFO] [stderr]   cargo:rerun-if-changed=./coreMQTT/source/include/core_mqtt_config.h
[INFO] [stderr]   cargo:rerun-if-changed=./coreMQTT/source/include/core_mqtt_config_defaults.h
[INFO] [stderr]   cargo:rerun-if-changed=./coreMQTT/source/include/core_mqtt_serializer.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-18/lib/clang/18/include/stddef.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-18/lib/clang/18/include/__stddef_ptrdiff_t.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-18/lib/clang/18/include/__stddef_size_t.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-18/lib/clang/18/include/__stddef_wchar_t.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-18/lib/clang/18/include/__stddef_null.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-18/lib/clang/18/include/__stddef_max_align_t.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-18/lib/clang/18/include/__stddef_offsetof.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-18/lib/clang/18/include/stdint.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/stdint.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/libc-header-start.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/features.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/features-time64.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/wordsize.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/timesize.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/wordsize.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/stdc-predef.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/sys/cdefs.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/wordsize.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/long-double.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/gnu/stubs.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/gnu/stubs-64.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/features.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/wordsize.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/timesize.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/wordsize.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/typesizes.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/time64.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/wchar.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/wordsize.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/stdint-intn.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/stdint-uintn.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/stdint-least.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/include/x86_64-linux-gnu/bits/types.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-18/lib/clang/18/include/stdbool.h
[INFO] [stderr]   cargo:rerun-if-changed=./coreMQTT/source/include/core_mqtt_config.h
[INFO] [stderr]   cargo:rerun-if-changed=./coreMQTT/source/include/core_mqtt_config_defaults.h
[INFO] [stderr]   cargo:rerun-if-changed=./coreMQTT/source/include/transport_interface.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-18/lib/clang/18/include/stdint.h
[INFO] [stderr]   cargo:rerun-if-changed=/usr/lib/llvm-18/lib/clang/18/include/stddef.h
[INFO] [stderr]   cargo:rerun-if-changed=./coreMQTT/source/include/transport_interface.h
[INFO] [stderr]   cargo:rerun-if-changed=./coreMQTT/source/include/core_mqtt_state.h
[INFO] [stderr]   cargo:rerun-if-changed=./coreMQTT/source/include/core_mqtt.h
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (52) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/core-mqtt-sys-0.1.1/build.rs:29:10:
[INFO] [stderr]   Couldn't write bindings!: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x6402b22d51c2 - std::backtrace_rs::backtrace::libunwind::trace::hcab59e1e990fdc24
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x6402b22d51c2 - std::backtrace_rs::backtrace::trace_unsynchronized::he24cc57f3d2f47b7
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x6402b22d51c2 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x6402b22d51c2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h67edf0e4d33c343c
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x6402b22e63ef - core::fmt::rt::Argument::fmt::hef94184842aeafdd
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x6402b22e63ef - core::fmt::write::hcf0c66b48a8fa606
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]      6:     0x6402b22a77c1 - std::io::default_write_fmt::h1ecb8c7cfa7da481
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x6402b22a77c1 - std::io::Write::write_fmt::h051fe4a9e4fdbf48
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x6402b22b2702 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x6402b22b523f - std::panicking::default_hook::{{closure}}::h91001850288db5f7
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x6402b22b5099 - std::panicking::default_hook::h2346dbb704ef5512
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x6402b22b58c5 - std::panicking::panic_with_hook::hd2b063a6090d23a4
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x6402b22b575a - std::panicking::panic_handler::{{closure}}::he666d95f139a333e
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x6402b22b2839 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x6402b229bbcd - __rustc[1d67440d6e82e4f]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x6402b22f0580 - core::panicking::panic_fmt::h420ddb7fd73daf53
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x6402b22ef7b6 - core::result::unwrap_failed::hdde076be853d034f
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/result.rs:1855:5
[INFO] [stderr]     17:     0x6402b1e9b550 - core::result::Result<T,E>::expect::he4b62e6a270e69b8
[INFO] [stderr]     18:     0x6402b1ddf581 - build_script_build::main::h83e4f06ff522b539
[INFO] [stderr]     19:     0x6402b1ddfe33 - core::ops::function::FnOnce::call_once::hf82c09984b2ec64f
[INFO] [stderr]     20:     0x6402b1ddfd26 - std::sys::backtrace::__rust_begin_short_backtrace::hc892979619193291
[INFO] [stderr]     21:     0x6402b1ddfd09 - std::rt::lang_start::{{closure}}::h1fa763828ec62462
[INFO] [stderr]     22:     0x6402b22a9320 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h4967fb77e0dfb65c
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x6402b22a9320 - std::panicking::catch_unwind::do_call::hf7e87675c3e14c23
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stderr]     24:     0x6402b22a9320 - std::panicking::catch_unwind::h26f0e342004b5114
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stderr]     25:     0x6402b22a9320 - std::panic::catch_unwind::h9ee33ca17775d897
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x6402b22a9320 - std::rt::lang_start_internal::{{closure}}::h243ba3495fa13cf8
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x6402b22a9320 - std::panicking::catch_unwind::do_call::h819db0a7788e7259
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stderr]     28:     0x6402b22a9320 - std::panicking::catch_unwind::h23e08fb4a7b9f405
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stderr]     29:     0x6402b22a9320 - std::panic::catch_unwind::h7ca3d9eabb6135ff
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x6402b22a9320 - std::rt::lang_start_internal::h06ad7395f4fda8d7
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x6402b1ddfcf1 - std::rt::lang_start::hd3bc7d471ce01b11
[INFO] [stderr]     32:     0x6402b1de1065 - main
[INFO] [stderr]     33:     0x71c2469a21ca - <unknown>
[INFO] [stderr]     34:     0x71c2469a228b - __libc_start_main
[INFO] [stderr]     35:     0x6402b1ddf185 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "138ad46b1bfd6f15a6f70d21e258560c4f414560a5d9f9c617799ac549649765", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "138ad46b1bfd6f15a6f70d21e258560c4f414560a5d9f9c617799ac549649765", kill_on_drop: false }`
[INFO] [stdout] 138ad46b1bfd6f15a6f70d21e258560c4f414560a5d9f9c617799ac549649765