[INFO] fetching crate read_utf8 0.1.2... [INFO] testing read_utf8-0.1.2 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate read_utf8 0.1.2 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate read_utf8 0.1.2 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate read_utf8 0.1.2 [INFO] tweaked toml for crates.io crate read_utf8 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate read_utf8 0.1.2 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] crate crates.io crate read_utf8 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9e7b88748f63740f98e5bf27e70ce2cc9b54df199204971446b1776c10600757 [INFO] running `Command { std: "docker" "start" "-a" "9e7b88748f63740f98e5bf27e70ce2cc9b54df199204971446b1776c10600757", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9e7b88748f63740f98e5bf27e70ce2cc9b54df199204971446b1776c10600757", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e7b88748f63740f98e5bf27e70ce2cc9b54df199204971446b1776c10600757", kill_on_drop: false }` [INFO] [stdout] 9e7b88748f63740f98e5bf27e70ce2cc9b54df199204971446b1776c10600757 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f551b024a53d4b01b35aaaf8d0d67846677ceac4682e1a991d118e840250be07 [INFO] running `Command { std: "docker" "start" "-a" "f551b024a53d4b01b35aaaf8d0d67846677ceac4682e1a991d118e840250be07", kill_on_drop: false }` [INFO] [stderr] Compiling read_utf8 v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.03s [INFO] running `Command { std: "docker" "inspect" "f551b024a53d4b01b35aaaf8d0d67846677ceac4682e1a991d118e840250be07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f551b024a53d4b01b35aaaf8d0d67846677ceac4682e1a991d118e840250be07", kill_on_drop: false }` [INFO] [stdout] f551b024a53d4b01b35aaaf8d0d67846677ceac4682e1a991d118e840250be07 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d873d3cde521ccf906fe496d9e57925a4e998a536f5ed33552d54f3bb73f3e25 [INFO] running `Command { std: "docker" "start" "-a" "d873d3cde521ccf906fe496d9e57925a4e998a536f5ed33552d54f3bb73f3e25", kill_on_drop: false }` [INFO] [stderr] Compiling read_utf8 v0.1.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.56s [INFO] running `Command { std: "docker" "inspect" "d873d3cde521ccf906fe496d9e57925a4e998a536f5ed33552d54f3bb73f3e25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d873d3cde521ccf906fe496d9e57925a4e998a536f5ed33552d54f3bb73f3e25", kill_on_drop: false }` [INFO] [stdout] d873d3cde521ccf906fe496d9e57925a4e998a536f5ed33552d54f3bb73f3e25 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 49a7afc4f5b2e3190bec6945d62367518d7fa33b618088bef776ae5b394baae4 [INFO] running `Command { std: "docker" "start" "-a" "49a7afc4f5b2e3190bec6945d62367518d7fa33b618088bef776ae5b394baae4", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/read_utf8-ed7fb6999ddfc828) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/read_utf8-d01f8470a86f61c3) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running tests/test_non_ascii_char.rs (/opt/rustwide/target/debug/deps/test_non_ascii_char-2684850f1fa09fca) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test tests_non_ascii_char::test_ascii_char ... ok [INFO] [stdout] test tests_non_ascii_char::test_non_ascii_char ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Running tests/test_number_bytes.rs (/opt/rustwide/target/debug/deps/test_number_bytes-34a1f44572275bb8) [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test tests_number_bytes_non_ascii_char::test_check_number_bytes_begin_four ... ok [INFO] [stdout] test tests_number_bytes_non_ascii_char::test_check_number_bytes_begin_invalid ... ok [INFO] [stdout] test tests_number_bytes_non_ascii_char::test_check_number_bytes_begin_one ... ok [INFO] [stdout] test tests_number_bytes_non_ascii_char::test_check_number_bytes_begin_three ... ok [INFO] [stdout] test tests_number_bytes_non_ascii_char::test_check_number_bytes_begin_two ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Running tests/test_read_char.rs (/opt/rustwide/target/debug/deps/test_read_char-9eb65c56213d1450) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests_read_char::simple_read ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- tests_read_char::simple_read stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'tests_read_char::simple_read' (27) panicked at src/read_utf8_char.rs:34:17: [INFO] [stdout] Unable to create ReadUTF8Char [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x59a41577d2d2 - std::backtrace_rs::backtrace::libunwind::trace::hcab59e1e990fdc24 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x59a41577d2d2 - std::backtrace_rs::backtrace::trace_unsynchronized::he24cc57f3d2f47b7 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x59a41577d2d2 - std::sys::backtrace::_print_fmt::hf8d65ede198eeb54 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x59a41577d2d2 - ::fmt::h67edf0e4d33c343c [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x59a41578d49f - core::fmt::rt::Argument::fmt::hef94184842aeafdd [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x59a41578d49f - core::fmt::write::hcf0c66b48a8fa606 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x59a41574a761 - std::io::default_write_fmt::h69967ac0ba93195f [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x59a41574a761 - std::io::Write::write_fmt::h8db9396209deaa1c [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x59a4157568a2 - std::sys::backtrace::BacktraceLock::print::h07e5435aa717b414 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x59a41575b3ef - std::panicking::default_hook::{{closure}}::h91001850288db5f7 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x59a41575b281 - std::panicking::default_hook::h2346dbb704ef5512 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x59a41571503e - as core::ops::function::Fn>::call::h18383b2e29377420 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 12: 0x59a41571503e - test::test_main_with_exit_callback::{{closure}}::h272d7ef99aef06dc [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x59a41575baaf - as core::ops::function::Fn>::call::h6dba6e441651a0d1 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 14: 0x59a41575baaf - std::panicking::panic_with_hook::hd2b063a6090d23a4 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x59a41575b8d6 - std::panicking::panic_handler::{{closure}}::he666d95f139a333e [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:700:13 [INFO] [stdout] 16: 0x59a4157569d9 - std::sys::backtrace::__rust_end_short_backtrace::h631ad224854ebee5 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x59a41573ec3d - __rustc[1d67440d6e82e4f]::rust_begin_unwind [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x59a415794dd0 - core::panicking::panic_fmt::h420ddb7fd73daf53 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x59a41573e995 - read_utf8::read_utf8_char::ReadUTF8Char::new::hd1f11c1784c5623b [INFO] [stdout] at /opt/rustwide/workdir/src/read_utf8_char.rs:34:17 [INFO] [stdout] 20: 0x59a4156efad9 - test_read_char::tests_read_char::simple_read::hc2de968acc967ec9 [INFO] [stdout] at /opt/rustwide/workdir/tests/test_read_char.rs:32:13 [INFO] [stdout] 21: 0x59a4156efee7 - test_read_char::tests_read_char::simple_read::{{closure}}::h8ab99cad1536db4b [INFO] [stdout] at /opt/rustwide/workdir/tests/test_read_char.rs:11:21 [INFO] [stdout] 22: 0x59a4156f02e6 - core::ops::function::FnOnce::call_once::hb076209a88e92e60 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x59a415714dfb - core::ops::function::FnOnce::call_once::h70887edf07a630ba [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x59a415714dfb - test::__rust_begin_short_backtrace::h27763c4cbbdb8601 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:663:18 [INFO] [stdout] 25: 0x59a41572aa65 - test::run_test_in_process::{{closure}}::h4dc8bc6d5e3924d3 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:74 [INFO] [stdout] 26: 0x59a41572aa65 - as core::ops::function::FnOnce<()>>::call_once::h75905e8ffe81974f [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 27: 0x59a41572aa65 - std::panicking::catch_unwind::do_call::h0bc60366ba66eba5 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stdout] 28: 0x59a41572aa65 - std::panicking::catch_unwind::hae1ec7bf94407afa [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stdout] 29: 0x59a41572aa65 - std::panic::catch_unwind::h0f4ff4773d84d3cd [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stdout] 30: 0x59a41572aa65 - test::run_test_in_process::h03fbc77ae48b3f10 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:686:27 [INFO] [stdout] 31: 0x59a41572aa65 - test::run_test::{{closure}}::h83476a9c453dc4d3 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:607:43 [INFO] [stdout] 32: 0x59a415701254 - test::run_test::{{closure}}::h515482ad1e7fe7de [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/test/src/lib.rs:637:41 [INFO] [stdout] 33: 0x59a415701254 - std::sys::backtrace::__rust_begin_short_backtrace::hed09f6ac5fe9d647 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 34: 0x59a415704b1a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h988e2cd969319888 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 35: 0x59a415704b1a - as core::ops::function::FnOnce<()>>::call_once::hd70e28dc46ec20be [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 36: 0x59a415704b1a - std::panicking::catch_unwind::do_call::hdc29e11311eb7655 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:590:40 [INFO] [stdout] 37: 0x59a415704b1a - std::panicking::catch_unwind::h9e402d6a96fef41c [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panicking.rs:553:19 [INFO] [stdout] 38: 0x59a415704b1a - std::panic::catch_unwind::h9213c0c54aec70e0 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/panic.rs:359:14 [INFO] [stdout] 39: 0x59a415704b1a - std::thread::Builder::spawn_unchecked_::{{closure}}::h6262965869ed2b87 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 40: 0x59a415704b1a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h05c05ed02619e462 [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x59a415751a5f - as core::ops::function::FnOnce>::call_once::h2044e71c41d3958a [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 42: 0x59a415751a5f - std::sys::thread::unix::Thread::new::thread_start::hf277835320aa8e5a [INFO] [stdout] at /rustc/bb624dcb4c8ab987e10c0808d92d76f3b84dd117/library/std/src/sys/thread/unix.rs:126:17 [INFO] [stdout] 43: 0x729a70934aa4 - [INFO] [stdout] 44: 0x729a709c1a34 - clone [INFO] [stdout] 45: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] tests_read_char::simple_read [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--test test_read_char` [INFO] running `Command { std: "docker" "inspect" "49a7afc4f5b2e3190bec6945d62367518d7fa33b618088bef776ae5b394baae4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49a7afc4f5b2e3190bec6945d62367518d7fa33b618088bef776ae5b394baae4", kill_on_drop: false }` [INFO] [stdout] 49a7afc4f5b2e3190bec6945d62367518d7fa33b618088bef776ae5b394baae4