[INFO] fetching crate rubbler 0.1.2...
[INFO] testing rubbler-0.1.2 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate rubbler 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rubbler 0.1.2
[INFO] finished tweaking crates.io crate rubbler 0.1.2
[INFO] tweaked toml for crates.io crate rubbler 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rubbler 0.1.2 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rubbler 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a88c1c58e32fbe11d6dd6cc3efd275adb139f3a16402061a39f0f91b62d0c824
[INFO] running `Command { std: "docker" "start" "-a" "a88c1c58e32fbe11d6dd6cc3efd275adb139f3a16402061a39f0f91b62d0c824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a88c1c58e32fbe11d6dd6cc3efd275adb139f3a16402061a39f0f91b62d0c824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a88c1c58e32fbe11d6dd6cc3efd275adb139f3a16402061a39f0f91b62d0c824", kill_on_drop: false }`
[INFO] [stdout] a88c1c58e32fbe11d6dd6cc3efd275adb139f3a16402061a39f0f91b62d0c824
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0705bcc9e7e74cddc468d55f208ed308be7ea4a44c09bc298f41c88e38b181bd
[INFO] running `Command { std: "docker" "start" "-a" "0705bcc9e7e74cddc468d55f208ed308be7ea4a44c09bc298f41c88e38b181bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling linux-raw-sys v0.4.10
[INFO] [stderr]    Compiling os_str_bytes v6.6.1
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling cbindgen v0.24.5
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling termcolor v1.3.0
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]    Compiling tempfile v3.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling rubbler v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `rubbler v0.1.2 (/opt/rustwide/workdir)`
[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/rubbler-0a140e7ea7a4cd12/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (688) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cbindgen-0.24.5/src/bindgen/bindings.rs:139:44:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x62e889fdc382 - std::backtrace_rs::backtrace::libunwind::trace::h16acf28769fcd909
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x62e889fdc382 - std::backtrace_rs::backtrace::trace_unsynchronized::hb5541aa5d4f92513
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x62e889fdc382 - std::sys::backtrace::_print_fmt::h8ac8268cb667a306
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x62e889fdc382 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h47627beda0767f4c
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x62e889fedeaf - core::fmt::rt::Argument::fmt::h686a01ad57c1c92a
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x62e889fedeaf - core::fmt::write::h8a63064c67176fd8
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x62e889fae423 - std::io::default_write_fmt::hc257f38f86d39af6
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x62e889fae423 - std::io::Write::write_fmt::h5e9b646cef91150b
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x62e889fb88d2 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x62e889fbae3f - std::panicking::default_hook::{{closure}}::h23e0299d4738b766
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x62e889fbac99 - std::panicking::default_hook::hfeec6294e8751b62
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x62e889fbb4c5 - std::panicking::panic_with_hook::hd57cd463d793ed79
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x62e889fbb2aa - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x62e889fb8a09 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x62e889fa20ad - __rustc[256c90bb7e548b45]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x62e889ff7be0 - core::panicking::panic_fmt::hf19c198748ef6a95
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x62e889ff6b36 - core::result::unwrap_failed::he81173b5792ad6b0
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/result.rs:1862:5
[INFO] [stderr]     17:     0x62e889cbf031 - cbindgen::bindgen::bindings::Bindings::write_to_file::he2e0468ed81b8a1e
[INFO] [stderr]     18:     0x62e889cdc264 - build_script_build::main::hf2661016a7512340
[INFO] [stderr]     19:     0x62e889cdc423 - core::ops::function::FnOnce::call_once::h5c040140b468650d
[INFO] [stderr]     20:     0x62e889cd8486 - std::sys::backtrace::__rust_begin_short_backtrace::h8ba8b9a0c3273b1a
[INFO] [stderr]     21:     0x62e889cdffb9 - std::rt::lang_start::{{closure}}::h820f814fb334313d
[INFO] [stderr]     22:     0x62e889faf8e0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hdf957eac011d0136
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x62e889faf8e0 - std::panicking::catch_unwind::do_call::h9ff550f7799115e1
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stderr]     24:     0x62e889faf8e0 - std::panicking::catch_unwind::ha7ce46787bb12905
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stderr]     25:     0x62e889faf8e0 - std::panic::catch_unwind::h625b36596def7d39
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x62e889faf8e0 - std::rt::lang_start_internal::{{closure}}::h4cbc9430de699e2c
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x62e889faf8e0 - std::panicking::catch_unwind::do_call::h5af2f11409a22e3e
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stderr]     28:     0x62e889faf8e0 - std::panicking::catch_unwind::hf64cf7b0d8070f52
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stderr]     29:     0x62e889faf8e0 - std::panic::catch_unwind::h480b74763390cdcf
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x62e889faf8e0 - std::rt::lang_start_internal::h4b3d04f698aef094
[INFO] [stderr]                                  at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x62e889cdffa1 - std::rt::lang_start::h6a832f8800a13ce7
[INFO] [stderr]     32:     0x62e889cdeea5 - main
[INFO] [stderr]     33:     0x745e709291ca - <unknown>
[INFO] [stderr]     34:     0x745e7092928b - __libc_start_main
[INFO] [stderr]     35:     0x62e889ca4095 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "0705bcc9e7e74cddc468d55f208ed308be7ea4a44c09bc298f41c88e38b181bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0705bcc9e7e74cddc468d55f208ed308be7ea4a44c09bc298f41c88e38b181bd", kill_on_drop: false }`
[INFO] [stdout] 0705bcc9e7e74cddc468d55f208ed308be7ea4a44c09bc298f41c88e38b181bd