[INFO] fetching crate appendvec 0.1.5... [INFO] testing appendvec-0.1.5 against beta-2026-04-21 for beta-1.96-3 [INFO] extracting crate appendvec 0.1.5 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate appendvec 0.1.5 [INFO] finished tweaking crates.io crate appendvec 0.1.5 [INFO] tweaked toml for crates.io crate appendvec 0.1.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate appendvec 0.1.5 on toolchain beta-2026-04-21 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate appendvec 0.1.5 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9e6386d27190799b3d85f6eb9b0c0061049aaf7ba17ff2b576d1b5ba63ed4e3b [INFO] running `Command { std: "docker" "start" "-a" "9e6386d27190799b3d85f6eb9b0c0061049aaf7ba17ff2b576d1b5ba63ed4e3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9e6386d27190799b3d85f6eb9b0c0061049aaf7ba17ff2b576d1b5ba63ed4e3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e6386d27190799b3d85f6eb9b0c0061049aaf7ba17ff2b576d1b5ba63ed4e3b", kill_on_drop: false }` [INFO] [stdout] 9e6386d27190799b3d85f6eb9b0c0061049aaf7ba17ff2b576d1b5ba63ed4e3b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1c4b758b291cc0a895297181071f742e4ffae0559c0edbffa6f8e4f9ebccfa97 [INFO] running `Command { std: "docker" "start" "-a" "1c4b758b291cc0a895297181071f742e4ffae0559c0edbffa6f8e4f9ebccfa97", kill_on_drop: false }` [INFO] [stderr] Compiling appendvec v0.1.5 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s [INFO] running `Command { std: "docker" "inspect" "1c4b758b291cc0a895297181071f742e4ffae0559c0edbffa6f8e4f9ebccfa97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c4b758b291cc0a895297181071f742e4ffae0559c0edbffa6f8e4f9ebccfa97", kill_on_drop: false }` [INFO] [stdout] 1c4b758b291cc0a895297181071f742e4ffae0559c0edbffa6f8e4f9ebccfa97 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 03916811dff40e74f0e2c38d30bb095ef2955d3537ddd1d31212859780a1ecbd [INFO] running `Command { std: "docker" "start" "-a" "03916811dff40e74f0e2c38d30bb095ef2955d3537ddd1d31212859780a1ecbd", kill_on_drop: false }` [INFO] [stderr] Compiling appendvec v0.1.5 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.63s [INFO] running `Command { std: "docker" "inspect" "03916811dff40e74f0e2c38d30bb095ef2955d3537ddd1d31212859780a1ecbd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "03916811dff40e74f0e2c38d30bb095ef2955d3537ddd1d31212859780a1ecbd", kill_on_drop: false }` [INFO] [stdout] 03916811dff40e74f0e2c38d30bb095ef2955d3537ddd1d31212859780a1ecbd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 05636a5e66be849018e0790993fa373e0ed5a21f6c46bb7079658c27678cc65f [INFO] running `Command { std: "docker" "start" "-a" "05636a5e66be849018e0790993fa373e0ed5a21f6c46bb7079658c27678cc65f", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/appendvec-10665a887c771d44) [INFO] [stdout] [INFO] [stdout] running 39 tests [INFO] [stdout] test str::test::test_2_bytes_utf8 ... ok [INFO] [stdout] test str::test::test_4_bytes_utf8 ... ok [INFO] [stdout] test str::test::test_3_bytes_utf8 ... ok [INFO] [stdout] test test::test_bucket_len ... ok [INFO] [stdout] test test::test_bucketize ... ok [INFO] [stdout] test test::test_max_len ... ok [INFO] [stdout] test test::test_item_size_log2 ... ok [INFO] [stdout] test test::test_get_unchecked_concurrent_reads ... ok [INFO] [stdout] test test::test_push_index ... ok [INFO] [stdout] test str::test::test_index_non_utf8 - should panic ... FAILED [INFO] [stdout] test test::test_invalid_bucket_len - should panic ... ok [INFO] [stdout] test str::test::test_push_str_index_concurrent_reads ... ok [INFO] [stdout] test test::test_push_mut_index ... ok [INFO] [stdout] test test::test_iter_chunks ... ok [INFO] [stdout] test test::test_iter ... ok [INFO] [stdout] test test::test_push_slice_index ... ok [INFO] [stdout] test test::test_get_unchecked_concurrent_writes ... ok [INFO] [stdout] test test::test_push_index_concurrent_reads ... ok [INFO] [stdout] test test::test_iter_chunks_with_capacity ... ok [INFO] [stdout] test test::test_iter_with_capacity ... ok [INFO] [stdout] test test::test_push_slice_mut_index ... ok [INFO] [stdout] test test::test_push_slice_padding ... ok [INFO] [stdout] test test::test_push_index_concurrent_readwrites ... ok [INFO] [stdout] test test::test_get_unchecked_concurrent_readwrites ... ok [INFO] [stdout] test test::test_with_overlarge_capacity - should panic ... ok [INFO] [stdout] test test::test_push_index_concurrent_writes ... ok [INFO] [stdout] test str::test::test_push_str_index_concurrent_readwrites ... ok [INFO] [stdout] test str::test::test_push_str_index_concurrent_writes ... ok [INFO] [stdout] test str::test::test_with_enough_capacity ... ok [INFO] [stdout] test test::test_push_slice_index_concurrent_reads ... ok [INFO] [stdout] test test::test_push_array_with_enough_capacity ... ok [INFO] [stdout] test test::test_push_owned_slice_with_enough_capacity ... ok [INFO] [stdout] test test::test_push_slice_with_enough_capacity ... ok [INFO] [stdout] test test::test_push_slice_index_concurrent_writes ... ok [INFO] [stdout] test test::test_push_owned_slice_with_little_capacity ... ok [INFO] [stdout] test test::test_push_slice_index_concurrent_readwrites ... ok [INFO] [stdout] test test::test_push_array_with_little_capacity ... ok [INFO] [stdout] test str::test::test_with_little_capacity ... ok [INFO] [stdout] test test::test_push_slice_with_little_capacity ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- str::test::test_index_non_utf8 stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'str::test::test_index_non_utf8' (20) panicked at src/str.rs:309:18: [INFO] [stdout] end byte index 2 is not a char boundary; it is inside '⠝' (bytes 0..3 of string) [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x60293710ca3a - std[128c3efe2914e152]::backtrace_rs::backtrace::libunwind::trace [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x60293710ca3a - std[128c3efe2914e152]::backtrace_rs::backtrace::trace_unsynchronized:: [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x60293710ca3a - std[128c3efe2914e152]::sys::backtrace::_print_fmt [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:74:9 [INFO] [stdout] 3: 0x60293710ca3a - <::print::DisplayBacktrace as core[6771d259883166e6]::fmt::Display>::fmt [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:44:26 [INFO] [stdout] 4: 0x60293712076a - ::fmt [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/fmt/rt.rs:152:76 [INFO] [stdout] 5: 0x60293712076a - core[6771d259883166e6]::fmt::write [INFO] [stdout] 6: 0x602937111302 - std[128c3efe2914e152]::io::default_write_fmt::> [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:621:11 [INFO] [stdout] 7: 0x602937111302 - as std[128c3efe2914e152]::io::Write>::write_fmt [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:1976:13 [INFO] [stdout] 8: 0x6029370eba3f - ::print [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:47:9 [INFO] [stdout] 9: 0x6029370eba3f - std[128c3efe2914e152]::panicking::default_hook::{closure#0} [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:292:27 [INFO] [stdout] 10: 0x602937104d19 - std[128c3efe2914e152]::panicking::default_hook [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:316:9 [INFO] [stdout] 11: 0x6029370a129c - core[6771d259883166e6]::ops::function::Fn<(&'a std[128c3efe2914e152]::panic::PanicHookInfo<'b>,), Output = ()> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::marker::Send> as core[6771d259883166e6]::ops::function::Fn<(&std[128c3efe2914e152]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/alloc/src/boxed.rs:2263:9 [INFO] [stdout] 12: 0x6029370a129c - test[b137923399915ecf]::test_main_with_exit_callback::::{closure#0} [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x602937104f92 - core[6771d259883166e6]::ops::function::Fn<(&'a std[128c3efe2914e152]::panic::PanicHookInfo<'b>,), Output = ()> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::marker::Send> as core[6771d259883166e6]::ops::function::Fn<(&std[128c3efe2914e152]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/alloc/src/boxed.rs:2263:9 [INFO] [stdout] 14: 0x602937104f92 - std[128c3efe2914e152]::panicking::panic_with_hook [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:833:13 [INFO] [stdout] 15: 0x6029370ebaf8 - std[128c3efe2914e152]::panicking::panic_handler::{closure#0} [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:698:13 [INFO] [stdout] 16: 0x6029370e0d09 - std[128c3efe2914e152]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:182:18 [INFO] [stdout] 17: 0x6029370ec80d - __rustc[752cc74e29381ccc]::rust_begin_unwind [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:689:5 [INFO] [stdout] 18: 0x602937120efc - core[6771d259883166e6]::panicking::panic_fmt [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x602937120ac5 - core[6771d259883166e6]::str::slice_error_fail_rt [INFO] [stdout] 20: 0x60293712080a - core[6771d259883166e6]::str::slice_error_fail [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/str/mod.rs:69:5 [INFO] [stdout] 21: 0x60293708e2ec - core::str::traits:: for core::ops::range::Range>::index::h74c203adcf1d77d5 [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/str/traits.rs:241:21 [INFO] [stdout] 22: 0x60293708b3a7 - core::str::traits:: for str>::index::h1655f498baee9cca [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/str/traits.rs:63:15 [INFO] [stdout] 23: 0x60293708cc0e - >>::index::ha115e8bc7c624b20 [INFO] [stdout] at /opt/rustwide/workdir/src/str.rs:260:20 [INFO] [stdout] 24: 0x6029370886e4 - appendvec::str::test::test_index_non_utf8::he862e2ab3975a70c [INFO] [stdout] at /opt/rustwide/workdir/src/str.rs:309:18 [INFO] [stdout] 25: 0x602937088737 - appendvec::str::test::test_index_non_utf8::{{closure}}::hd997924916b35441 [INFO] [stdout] at /opt/rustwide/workdir/src/str.rs:306:29 [INFO] [stdout] 26: 0x602937091c06 - core::ops::function::FnOnce::call_once::h7a26907de8345ef4 [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 27: 0x60293709539b - core[6771d259883166e6]::result::Result<(), alloc[fef50e8eecedd288]::string::String> as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 28: 0x60293709539b - test[b137923399915ecf]::__rust_begin_short_backtrace::, fn() -> core[6771d259883166e6]::result::Result<(), alloc[fef50e8eecedd288]::string::String>> [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/test/src/lib.rs:663:18 [INFO] [stdout] 29: 0x6029370a1d6b - test[b137923399915ecf]::run_test_in_process::{closure#0} [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/test/src/lib.rs:686:74 [INFO] [stdout] 30: 0x6029370a1d6b - as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/panic/unwind_safe.rs:275:9 [INFO] [stdout] 31: 0x6029370a1d6b - std[128c3efe2914e152]::panicking::catch_unwind::do_call::, core[6771d259883166e6]::result::Result<(), alloc[fef50e8eecedd288]::string::String>> [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40 [INFO] [stdout] 32: 0x6029370a1d6b - std[128c3efe2914e152]::panicking::catch_unwind::, core[6771d259883166e6]::panic::unwind_safe::AssertUnwindSafe> [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19 [INFO] [stdout] 33: 0x6029370a1d6b - std[128c3efe2914e152]::panic::catch_unwind::, core[6771d259883166e6]::result::Result<(), alloc[fef50e8eecedd288]::string::String>> [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14 [INFO] [stdout] 34: 0x6029370a1d6b - test[b137923399915ecf]::run_test_in_process [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/test/src/lib.rs:686:27 [INFO] [stdout] 35: 0x6029370a1d6b - test[b137923399915ecf]::run_test::{closure#0} [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/test/src/lib.rs:607:43 [INFO] [stdout] 36: 0x60293709c1c4 - test[b137923399915ecf]::run_test::{closure#1} [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/test/src/lib.rs:637:41 [INFO] [stdout] 37: 0x60293709c1c4 - std[128c3efe2914e152]::sys::backtrace::__rust_begin_short_backtrace:: [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:166:18 [INFO] [stdout] 38: 0x6029370a4972 - std[128c3efe2914e152]::thread::lifecycle::spawn_unchecked::::{closure#1}::{closure#0} [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/thread/lifecycle.rs:91:13 [INFO] [stdout] 39: 0x6029370a4972 - ::{closure#1}::{closure#0}> as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/panic/unwind_safe.rs:275:9 [INFO] [stdout] 40: 0x6029370a4972 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40 [INFO] [stdout] 41: 0x6029370a4972 - std[128c3efe2914e152]::panicking::catch_unwind::<(), core[6771d259883166e6]::panic::unwind_safe::AssertUnwindSafe::{closure#1}::{closure#0}>> [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19 [INFO] [stdout] 42: 0x6029370a4972 - std[128c3efe2914e152]::panic::catch_unwind::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14 [INFO] [stdout] 43: 0x6029370a4972 - std[128c3efe2914e152]::thread::lifecycle::spawn_unchecked::::{closure#1} [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/thread/lifecycle.rs:89:26 [INFO] [stdout] 44: 0x6029370a4972 - ::{closure#1} as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 45: 0x60293710c33f - + core[6771d259883166e6]::marker::Send> as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/alloc/src/boxed.rs:2249:9 [INFO] [stdout] 46: 0x60293710c33f - ::new::thread_start [INFO] [stdout] at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/thread/unix.rs:118:17 [INFO] [stdout] 47: 0x74377c615aa4 - [INFO] [stdout] 48: 0x74377c6a2a64 - clone [INFO] [stdout] 49: 0x0 - [INFO] [stdout] note: panic did not contain expected string [INFO] [stdout] panic message: "end byte index 2 is not a char boundary; it is inside '⠝' (bytes 0..3 of string)" [INFO] [stdout] expected substring: "byte index 2 is not a char boundary; it is inside '⠝' (bytes 0..3) of `⠝`" [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] str::test::test_index_non_utf8 [INFO] [stdout] [INFO] [stdout] test result: FAILED. 38 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 24.05s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--lib` [INFO] running `Command { std: "docker" "inspect" "05636a5e66be849018e0790993fa373e0ed5a21f6c46bb7079658c27678cc65f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "05636a5e66be849018e0790993fa373e0ed5a21f6c46bb7079658c27678cc65f", kill_on_drop: false }` [INFO] [stdout] 05636a5e66be849018e0790993fa373e0ed5a21f6c46bb7079658c27678cc65f