[INFO] fetching crate loopdev 0.4.0...
[INFO] testing loopdev-0.4.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate loopdev 0.4.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate loopdev 0.4.0
[INFO] finished tweaking crates.io crate loopdev 0.4.0
[INFO] tweaked toml for crates.io crate loopdev 0.4.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate loopdev 0.4.0 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 51 packages to latest compatible versions
[INFO] [stderr]       Adding bindgen v0.59.2 (available: v0.72.1)
[INFO] [stderr]       Adding errno v0.2.8 (available: v0.3.14)
[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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fb8c8ad092deb3bb6db8b0aee6499364fe879295a4772027e3548fc3d4a3ec76
[INFO] running `Command { std: "docker" "start" "-a" "fb8c8ad092deb3bb6db8b0aee6499364fe879295a4772027e3548fc3d4a3ec76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb8c8ad092deb3bb6db8b0aee6499364fe879295a4772027e3548fc3d4a3ec76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8c8ad092deb3bb6db8b0aee6499364fe879295a4772027e3548fc3d4a3ec76", kill_on_drop: false }`
[INFO] [stdout] fb8c8ad092deb3bb6db8b0aee6499364fe879295a4772027e3548fc3d4a3ec76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] de114ad399a8caf4c43ec01666fc2a640545f6636f01a7d8b176991fc0e411f4
[INFO] running `Command { std: "docker" "start" "-a" "de114ad399a8caf4c43ec01666fc2a640545f6636f01a7d8b176991fc0e411f4", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling loopdev v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `loopdev v0.4.0 (/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/loopdev-e0ced82dfcce47b5/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (215) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/bindgen-0.59.2/src/ir/context.rs:878:9:
[INFO] [stderr]   "enum_(unnamed_at_/usr/include/linux/loop_h_16_1)" is not a valid Ident
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x61edee441002 - 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:     0x61edee441002 - 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:     0x61edee441002 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x61edee441002 - <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:     0x61edee4521af - core::fmt::rt::Argument::fmt::hef94184842aeafdd
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x61edee4521af - core::fmt::write::hcf0c66b48a8fa606
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]      6:     0x61edee413671 - std::io::default_write_fmt::h1ecb8c7cfa7da481
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x61edee413671 - std::io::Write::write_fmt::h051fe4a9e4fdbf48
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x61edee41e3d2 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x61edee420f0f - std::panicking::default_hook::{{closure}}::h91001850288db5f7
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x61edee420d69 - std::panicking::default_hook::h2346dbb704ef5512
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x61edee421645 - std::panicking::panic_with_hook::hd2b063a6090d23a4
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x61edee42142a - std::panicking::panic_handler::{{closure}}::he666d95f139a333e
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x61edee41e509 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x61edee407a6d - __rustc[1d67440d6e82e4f]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x61edee45c080 - core::panicking::panic_fmt::h420ddb7fd73daf53
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x61edee3e365f - proc_macro2::fallback::validate_ident::h79055cbd510e7bc5
[INFO] [stderr]     17:     0x61edee3e3d88 - proc_macro2::fallback::Ident::new_checked::h381addd91ab7e2fc
[INFO] [stderr]     18:     0x61edee3e96f2 - proc_macro2::imp::Ident::new_checked::h6c4723981633d943
[INFO] [stderr]     19:     0x61edee3f7bf7 - proc_macro2::Ident::new::h4fd70cb5439da2a2
[INFO] [stderr]     20:     0x61edee125516 - bindgen::ir::context::BindgenContext::rust_ident_raw::h68f0fdd23a949ff8
[INFO] [stderr]     21:     0x61edee1230c0 - bindgen::ir::context::BindgenContext::rust_ident::h59967121682fb067
[INFO] [stderr]     22:     0x61edee10809e - <bindgen::ir::enum_ty::Enum as bindgen::codegen::CodeGenerator>::codegen::hbf16206dfaeb9509
[INFO] [stderr]     23:     0x61edee104876 - <bindgen::ir::ty::Type as bindgen::codegen::CodeGenerator>::codegen::h67d3b1c2744b8422
[INFO] [stderr]     24:     0x61edee1b644d - <bindgen::ir::item::Item as bindgen::codegen::CodeGenerator>::codegen::h36cfbf098a1f9694
[INFO] [stderr]     25:     0x61edee187255 - <bindgen::ir::module::Module as bindgen::codegen::CodeGenerator>::codegen::{{closure}}::hfee51de78ff5a48d
[INFO] [stderr]     26:     0x61edee1bb335 - <bindgen::ir::module::Module as bindgen::codegen::CodeGenerator>::codegen::h6e2c625205d98e14
[INFO] [stderr]     27:     0x61edee1b6432 - <bindgen::ir::item::Item as bindgen::codegen::CodeGenerator>::codegen::h36cfbf098a1f9694
[INFO] [stderr]     28:     0x61edee19431e - bindgen::codegen::codegen::{{closure}}::h7c312efef21980c0
[INFO] [stderr]     29:     0x61edee12fc38 - bindgen::ir::context::BindgenContext::gen::h5d84aacbd7eebc6c
[INFO] [stderr]     30:     0x61edee193c2d - bindgen::codegen::codegen::h97cc71195d1c16c6
[INFO] [stderr]     31:     0x61edee0b856d - bindgen::Bindings::generate::hb77c1dba5ab8e297
[INFO] [stderr]     32:     0x61edee0b551b - bindgen::Builder::generate::h8859d06a02d6d635
[INFO] [stderr]     33:     0x61edee092f45 - build_script_build::main::hd0c32ac60b2a83e5
[INFO] [stderr]     34:     0x61edee093a23 - core::ops::function::FnOnce::call_once::h1978d66d52378575
[INFO] [stderr]     35:     0x61edee0938d6 - std::sys::backtrace::__rust_begin_short_backtrace::h4828fb1727305371
[INFO] [stderr]     36:     0x61edee0938b9 - std::rt::lang_start::{{closure}}::h8780fb9308789e84
[INFO] [stderr]     37:     0x61edee4151d0 - 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]     38:     0x61edee4151d0 - std::panicking::catch_unwind::do_call::hf7e87675c3e14c23
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stderr]     39:     0x61edee4151d0 - std::panicking::catch_unwind::h26f0e342004b5114
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stderr]     40:     0x61edee4151d0 - std::panic::catch_unwind::h9ee33ca17775d897
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stderr]     41:     0x61edee4151d0 - std::rt::lang_start_internal::{{closure}}::h243ba3495fa13cf8
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:175:24
[INFO] [stderr]     42:     0x61edee4151d0 - std::panicking::catch_unwind::do_call::h819db0a7788e7259
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40
[INFO] [stderr]     43:     0x61edee4151d0 - std::panicking::catch_unwind::h23e08fb4a7b9f405
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19
[INFO] [stderr]     44:     0x61edee4151d0 - std::panic::catch_unwind::h7ca3d9eabb6135ff
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14
[INFO] [stderr]     45:     0x61edee4151d0 - std::rt::lang_start_internal::h06ad7395f4fda8d7
[INFO] [stderr]                                  at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/rt.rs:171:5
[INFO] [stderr]     46:     0x61edee0938a1 - std::rt::lang_start::hca5cb1cfbe3c3dcf
[INFO] [stderr]     47:     0x61edee094bd5 - main
[INFO] [stderr]     48:     0x7ba7313c41ca - <unknown>
[INFO] [stderr]     49:     0x7ba7313c428b - __libc_start_main
[INFO] [stderr]     50:     0x61edee092cc5 - _start
[INFO] [stderr]     51:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "de114ad399a8caf4c43ec01666fc2a640545f6636f01a7d8b176991fc0e411f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de114ad399a8caf4c43ec01666fc2a640545f6636f01a7d8b176991fc0e411f4", kill_on_drop: false }`
[INFO] [stdout] de114ad399a8caf4c43ec01666fc2a640545f6636f01a7d8b176991fc0e411f4
