[INFO] fetching crate string32 0.2.0...
[INFO] testing string32-0.2.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate string32 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate string32 0.2.0
[INFO] finished tweaking crates.io crate string32 0.2.0
[INFO] tweaked toml for crates.io crate string32 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate string32 0.2.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 942cbf717a795db07b0dfb7a98ecc1fd26cea17b36a26db7b079b8c32650ad4d
[INFO] running `Command { std: "docker" "start" "-a" "942cbf717a795db07b0dfb7a98ecc1fd26cea17b36a26db7b079b8c32650ad4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "942cbf717a795db07b0dfb7a98ecc1fd26cea17b36a26db7b079b8c32650ad4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "942cbf717a795db07b0dfb7a98ecc1fd26cea17b36a26db7b079b8c32650ad4d", kill_on_drop: false }`
[INFO] [stdout] 942cbf717a795db07b0dfb7a98ecc1fd26cea17b36a26db7b079b8c32650ad4d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1adbae3634433c5bce3fc97cab412e95926de447a46eaa4969a1d13199c3b7ac
[INFO] running `Command { std: "docker" "start" "-a" "1adbae3634433c5bce3fc97cab412e95926de447a46eaa4969a1d13199c3b7ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling mediumvec v1.3.1
[INFO] [stderr]    Compiling usize_cast v1.1.0
[INFO] [stderr]    Compiling string32 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/string32.rs:386:5
[INFO] [stdout]     |
[INFO] [stdout] 386 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/string32.rs:396:5
[INFO] [stdout]     |
[INFO] [stdout] 396 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str32.rs:138:18
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn chars(&self) -> std::str::Chars {
[INFO] [stdout]     |                  ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn chars(&self) -> std::str::Chars<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "1adbae3634433c5bce3fc97cab412e95926de447a46eaa4969a1d13199c3b7ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1adbae3634433c5bce3fc97cab412e95926de447a46eaa4969a1d13199c3b7ac", kill_on_drop: false }`
[INFO] [stdout] 1adbae3634433c5bce3fc97cab412e95926de447a46eaa4969a1d13199c3b7ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 735e9a046b96574d27fd5871b418e2840719dd7084d587a2ad99960101c73dcb
[INFO] running `Command { std: "docker" "start" "-a" "735e9a046b96574d27fd5871b418e2840719dd7084d587a2ad99960101c73dcb", kill_on_drop: false }`
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/string32.rs:386:5
[INFO] [stdout]     |
[INFO] [stdout] 386 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/string32.rs:396:5
[INFO] [stdout]     |
[INFO] [stdout] 396 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str32.rs:138:18
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn chars(&self) -> std::str::Chars {
[INFO] [stdout]     |                  ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn chars(&self) -> std::str::Chars<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling string32 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/string32.rs:386:5
[INFO] [stdout]     |
[INFO] [stdout] 386 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/string32.rs:396:5
[INFO] [stdout]     |
[INFO] [stdout] 396 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/str32.rs:138:18
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn chars(&self) -> std::str::Chars {
[INFO] [stdout]     |                  ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn chars(&self) -> std::str::Chars<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "735e9a046b96574d27fd5871b418e2840719dd7084d587a2ad99960101c73dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "735e9a046b96574d27fd5871b418e2840719dd7084d587a2ad99960101c73dcb", kill_on_drop: false }`
[INFO] [stdout] 735e9a046b96574d27fd5871b418e2840719dd7084d587a2ad99960101c73dcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] e233fe1ef5f30e2d2d7300ec63a6da794945979eea905fa2f4efff8dc580f106
[INFO] running `Command { std: "docker" "start" "-a" "e233fe1ef5f30e2d2d7300ec63a6da794945979eea905fa2f4efff8dc580f106", kill_on_drop: false }`
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/string32.rs:386:5
[INFO] [stderr]     |
[INFO] [stderr] 386 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/string32.rs:396:5
[INFO] [stderr]     |
[INFO] [stderr] 396 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/str32.rs:138:18
[INFO] [stderr]     |
[INFO] [stderr] 138 |     pub fn chars(&self) -> std::str::Chars {
[INFO] [stderr]     |                  ^^^^^     ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 138 |     pub fn chars(&self) -> std::str::Chars<'_> {
[INFO] [stderr]     |                                           ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `string32` (lib) generated 3 warnings (run `cargo fix --lib -p string32` to apply 3 suggestions)
[INFO] [stderr] warning: `string32` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/string32-de8a2c5a9ac9d4df)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_simple ... ok
[INFO] [stdout] test tests::test_hash ... ok
[INFO] [stdout] test tests::test_complex ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests string32
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stdout] test src/str32.rs - str32::Str32::trim (line 339) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::as_bytes (line 44) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::to_lowercase (line 279) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::to_uppercase (line 294) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::as_str (line 23) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::trim_start (line 354) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::trim_end (line 369) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::as_bytes_mut (line 59) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::len (line 110) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::make_ascii_lowercase (line 228) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::make_ascii_uppercase (line 243) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::as_string (line 77) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::to_ascii_uppercase (line 324) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::into_boxed_str (line 301) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::into_bytes (line 285) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::insert_str (line 193) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::to_ascii_lowercase (line 309) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::is_empty (line 125) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::new (line 28) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::push_str (line 119) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::clear (line 270) ... FAILED
[INFO] [stdout] test src/string32.rs - string32::String32::capacity (line 57) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::push (line 101) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::remove (line 155) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::reserve_exact (line 227) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::insert (line 174) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::with_capacity (line 41) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::pop (line 136) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::reserve (line 211) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::truncate (line 255) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::split_off (line 320) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::shrink_to_fit (line 241) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/string32.rs - string32::String32::clear (line 270) stdout ----
[INFO] [stdout] Test executable failed (signal: 6 (SIGABRT) (core dumped)).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (632) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mediumvec-1.3.1/src/vec32.rs:293:41:
[INFO] [stdout] unsafe precondition(s) violated: slice::get_unchecked_mut requires that the index is within the slice
[INFO] [stdout] 
[INFO] [stdout] This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6393174c16aa - 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:     0x6393174c16aa - std[128c3efe2914e152]::backtrace_rs::backtrace::trace_unsynchronized::<std[128c3efe2914e152]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6393174c16aa - std[128c3efe2914e152]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x6393174c16aa - <<std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6771d259883166e6]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x6393174d13fa - <core[6771d259883166e6]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x6393174d13fa - core[6771d259883166e6]::fmt::write
[INFO] [stdout]    6:     0x6393174c4a22 - std[128c3efe2914e152]::io::default_write_fmt::<std[128c3efe2914e152]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x6393174c4a22 - <std[128c3efe2914e152]::sys::stdio::unix::Stderr as std[128c3efe2914e152]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x6393174ad70f - <std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x6393174ad70f - std[128c3efe2914e152]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x6393174bdc21 - std[128c3efe2914e152]::panicking::default_hook
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x6393174bdddb - std[128c3efe2914e152]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x6393174ad7fa - std[128c3efe2914e152]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:691:13
[INFO] [stdout]   13:     0x6393174a2db9 - std[128c3efe2914e152]::sys::backtrace::__rust_end_short_backtrace::<std[128c3efe2914e152]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x6393174adfad - __rustc[752cc74e29381ccc]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x6393174d192d - core[6771d259883166e6]::panicking::panic_nounwind_fmt::runtime
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/panicking.rs:122:22
[INFO] [stdout]   16:     0x6393174d192d - core[6771d259883166e6]::panicking::panic_nounwind_fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/intrinsics/mod.rs:2448:9
[INFO] [stdout]   17:     0x639317497694 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked_mut::precondition_check::h43478ff53e0c265a
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/ub_checks.rs:73:21
[INFO] [stdout]   18:     0x639317497639 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked_mut::h66d473c85186311f
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/ub_checks.rs:78:17
[INFO] [stdout]   19:     0x6393174960b9 - core::slice::<impl [T]>::get_unchecked_mut::h41414a13be57c4e4
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/slice/mod.rs:691:30
[INFO] [stdout]   20:     0x639317497b44 - mediumvec::vec32::Vec32<T>::truncate::h0371d3ba63e2c259
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mediumvec-1.3.1/src/vec32.rs:293:41
[INFO] [stdout]   21:     0x6393174978cd - mediumvec::vec32::Vec32<T>::clear::hdf4b135843befb14
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mediumvec-1.3.1/src/vec32.rs:279:14
[INFO] [stdout]   22:     0x63931749648b - string32::string32::String32::clear::hc5a454071807a2e2
[INFO] [stdout]                                at /opt/rustwide/workdir/src/string32.rs:278:16
[INFO] [stdout]   23:     0x639317495f58 - rust_out::main::_doctest_main_src_string32_rs_270_0::h57e5276c9a5019a0
[INFO] [stdout]   24:     0x639317495eb6 - rust_out::main::h82fb2350cf581080
[INFO] [stdout]   25:     0x639317495e13 - core::ops::function::FnOnce::call_once::ha255b9c9bfd362b0
[INFO] [stdout]   26:     0x639317495df6 - std::sys::backtrace::__rust_begin_short_backtrace::h2d9a46d63e3b4cf7
[INFO] [stdout]   27:     0x639317495dd9 - std::rt::lang_start::{{closure}}::ha4a2862521902498
[INFO] [stdout]   28:     0x6393174bd3a4 - <&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   29:     0x6393174bd3a4 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x6393174bd3a4 - std[128c3efe2914e152]::panicking::catch_unwind::<i32, &dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x6393174bd3a4 - std[128c3efe2914e152]::panic::catch_unwind::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x6393174bd3a4 - std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:175:24
[INFO] [stdout]   33:     0x6393174bd3a4 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40
[INFO] [stdout]   34:     0x6393174bd3a4 - std[128c3efe2914e152]::panicking::catch_unwind::<isize, std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19
[INFO] [stdout]   35:     0x6393174bd3a4 - std[128c3efe2914e152]::panic::catch_unwind::<std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14
[INFO] [stdout]   36:     0x6393174bd3a4 - std[128c3efe2914e152]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:171:5
[INFO] [stdout]   37:     0x639317495dc1 - std::rt::lang_start::h45abc79480616123
[INFO] [stdout]   38:     0x639317496025 - main
[INFO] [stdout]   39:     0x72e7a30aa1ca - <unknown>
[INFO] [stdout]   40:     0x72e7a30aa28b - __libc_start_main
[INFO] [stdout]   41:     0x639317495cd5 - _start
[INFO] [stdout]   42:                0x0 - <unknown>
[INFO] [stdout] thread caused non-unwinding panic. aborting.
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/string32.rs - string32::String32::clear (line 270)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 31 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.45s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "e233fe1ef5f30e2d2d7300ec63a6da794945979eea905fa2f4efff8dc580f106", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e233fe1ef5f30e2d2d7300ec63a6da794945979eea905fa2f4efff8dc580f106", kill_on_drop: false }`
[INFO] [stdout] e233fe1ef5f30e2d2d7300ec63a6da794945979eea905fa2f4efff8dc580f106
