[INFO] fetching crate lightmotif-py 0.10.0...
[INFO] testing lightmotif-py-0.10.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate lightmotif-py 0.10.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate lightmotif-py 0.10.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate lightmotif-py 0.10.0
[INFO] tweaked toml for crates.io crate lightmotif-py 0.10.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lightmotif-py 0.10.0 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 lightmotif-py 0.10.0 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7b340d502d1332a84572fc1723dcab09094a92c0777ab4051a5ce5a19c387d63
[INFO] running `Command { std: "docker" "start" "-a" "7b340d502d1332a84572fc1723dcab09094a92c0777ab4051a5ce5a19c387d63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b340d502d1332a84572fc1723dcab09094a92c0777ab4051a5ce5a19c387d63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b340d502d1332a84572fc1723dcab09094a92c0777ab4051a5ce5a19c387d63", kill_on_drop: false }`
[INFO] [stdout] 7b340d502d1332a84572fc1723dcab09094a92c0777ab4051a5ce5a19c387d63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0c1235b593fd90f42536c964fc1b8a2da5cb9045f4c8ee3e052da6f7ef8cf307
[INFO] running `Command { std: "docker" "start" "-a" "0c1235b593fd90f42536c964fc1b8a2da5cb9045f4c8ee3e052da6f7ef8cf307", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]    Compiling unindent v0.2.4
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling pyo3-build-config v0.23.5
[INFO] [stderr]    Compiling nom v8.0.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling generic-array v1.2.0
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]    Compiling lightmotif v0.10.0
[INFO] [stderr]    Compiling pyo3-macros-backend v0.23.5
[INFO] [stderr]    Compiling pyo3-ffi v0.23.5
[INFO] [stderr]    Compiling pyo3 v0.23.5
[INFO] [stderr]    Compiling lightmotif-tfmpvalue v0.10.0
[INFO] [stderr]    Compiling lightmotif-io v0.10.0
[INFO] [stderr]    Compiling pyo3-macros v0.23.5
[INFO] [stderr]    Compiling lightmotif-py v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.70s
[INFO] running `Command { std: "docker" "inspect" "0c1235b593fd90f42536c964fc1b8a2da5cb9045f4c8ee3e052da6f7ef8cf307", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c1235b593fd90f42536c964fc1b8a2da5cb9045f4c8ee3e052da6f7ef8cf307", kill_on_drop: false }`
[INFO] [stdout] 0c1235b593fd90f42536c964fc1b8a2da5cb9045f4c8ee3e052da6f7ef8cf307
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c3228797b635c46b57c85f901e4051fd471c30c55b3d1f0c05105da87dd7844
[INFO] running `Command { std: "docker" "start" "-a" "2c3228797b635c46b57c85f901e4051fd471c30c55b3d1f0c05105da87dd7844", kill_on_drop: false }`
[INFO] [stderr]    Compiling lightmotif-py v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.16s
[INFO] running `Command { std: "docker" "inspect" "2c3228797b635c46b57c85f901e4051fd471c30c55b3d1f0c05105da87dd7844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c3228797b635c46b57c85f901e4051fd471c30c55b3d1f0c05105da87dd7844", kill_on_drop: false }`
[INFO] [stdout] 2c3228797b635c46b57c85f901e4051fd471c30c55b3d1f0c05105da87dd7844
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8f5c71a98a412bae12a694829050df359bafd3393b3904f8c5b64baf80611ca3
[INFO] running `Command { std: "docker" "start" "-a" "8f5c71a98a412bae12a694829050df359bafd3393b3904f8c5b64baf80611ca3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests lightmotif/lib.rs (/opt/rustwide/target/debug/deps/lightmotif_py-0cfca5691e04510c)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running lightmotif/tests/unittest.rs (/opt/rustwide/target/debug/deps/unittest-ca41ec75a21d1b68)
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] thread 'main' (25) panicked at lightmotif/tests/unittest.rs:22:10:
[INFO] [stdout] 
[INFO] [stderr] called `Option::unwrap()` on a `None` value
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5e36da74b6e2 - 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:     0x5e36da74b6e2 - 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:     0x5e36da74b6e2 - std::sys::backtrace::_print_fmt::h8ac8268cb667a306
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]    3:     0x5e36da74b6e2 - <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:     0x5e36da75b5af - core::fmt::rt::Argument::fmt::h686a01ad57c1c92a
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]    5:     0x5e36da75b5af - core::fmt::write::h8a63064c67176fd8
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]    6:     0x5e36da728273 - std::io::default_write_fmt::hc257f38f86d39af6
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:639:11
[INFO] [stderr]    7:     0x5e36da728273 - std::io::Write::write_fmt::h5e9b646cef91150b
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]    8:     0x5e36da72e0c2 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]    9:     0x5e36da72feff - std::panicking::default_hook::{{closure}}::h23e0299d4738b766
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:301:27
[INFO] [stderr]   10:     0x5e36da72fd59 - std::panicking::default_hook::hfeec6294e8751b62
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:328:9
[INFO] [stderr]   11:     0x5e36da730585 - std::panicking::panic_with_hook::hd57cd463d793ed79
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:834:13
[INFO] [stderr]   12:     0x5e36da730336 - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:700:13
[INFO] [stderr]   13:     0x5e36da72e1f9 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]   14:     0x5e36da71cd1d - __rustc[256c90bb7e548b45]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:698:5
[INFO] [stderr]   15:     0x5e36da760430 - core::panicking::panic_fmt::hf19c198748ef6a95
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:80:14
[INFO] [stderr]   16:     0x5e36da76040c - core::panicking::panic::h5387b4c27e81d0dd
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:150:5
[INFO] [stderr]   17:     0x5e36da75f8f9 - core::option::unwrap_failed::he1ebbf499f413322
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/option.rs:2174:5
[INFO] [stderr]   18:     0x5e36da52eb70 - core::option::Option<T>::unwrap::h054cc5048a7e9016
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/option.rs:1015:21
[INFO] [stderr]   19:     0x5e36da52eb70 - unittest::main::h6fd712ae1356495e
[INFO] [stderr]                                at /opt/rustwide/workdir/lightmotif/tests/unittest.rs:22:10
[INFO] [stderr]   20:     0x5e36da52e452 - core::ops::function::FnOnce::call_once::hf61c2dd2558cc2e4
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   21:     0x5e36da52e395 - std::sys::backtrace::__rust_begin_short_backtrace::hb361eb1fedd38f33
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:158:18
[INFO] [stderr]   22:     0x5e36da52e344 - std::rt::lang_start::{{closure}}::h605565285719a114
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:206:18
[INFO] [stderr]   23:     0x5e36da729ac0 - 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]   24:     0x5e36da729ac0 - std::panicking::catch_unwind::do_call::h9ff550f7799115e1
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stderr]   25:     0x5e36da729ac0 - std::panicking::catch_unwind::ha7ce46787bb12905
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stderr]   26:     0x5e36da729ac0 - std::panic::catch_unwind::h625b36596def7d39
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stderr]   27:     0x5e36da729ac0 - std::rt::lang_start_internal::{{closure}}::h4cbc9430de699e2c
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:175:24
[INFO] [stderr]   28:     0x5e36da729ac0 - std::panicking::catch_unwind::do_call::h5af2f11409a22e3e
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stderr]   29:     0x5e36da729ac0 - std::panicking::catch_unwind::hf64cf7b0d8070f52
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stderr]   30:     0x5e36da729ac0 - std::panic::catch_unwind::h480b74763390cdcf
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stderr]   31:     0x5e36da729ac0 - std::rt::lang_start_internal::h4b3d04f698aef094
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:171:5
[INFO] [stderr]   32:     0x5e36da52e327 - std::rt::lang_start::hc1b926e86586d28b
[INFO] [stderr]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:205:5
[INFO] [stderr]   33:     0x5e36da52f8de - main
[INFO] [stderr]   34:     0x79312438d1ca - <unknown>
[INFO] [stderr]   35:     0x79312438d28b - __libc_start_main
[INFO] [stderr]   36:     0x5e36da52d305 - _start
[INFO] [stderr]   37:                0x0 - <unknown>
[INFO] [stderr] error: test failed, to rerun pass `--test unittest`
[INFO] running `Command { std: "docker" "inspect" "8f5c71a98a412bae12a694829050df359bafd3393b3904f8c5b64baf80611ca3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f5c71a98a412bae12a694829050df359bafd3393b3904f8c5b64baf80611ca3", kill_on_drop: false }`
[INFO] [stdout] 8f5c71a98a412bae12a694829050df359bafd3393b3904f8c5b64baf80611ca3