[INFO] fetching crate string32 0.2.0...
[INFO] testing string32-0.2.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate string32 0.2.0 into /workspace/builds/worker-0-tc1/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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate string32 0.2.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mediumvec v1.3.1
[INFO] [stderr]   Downloaded usize_cast v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfe73233fc2b9e3e692673a173a71360fdf8024e7cf33fba9b5f69e36c57e40b
[INFO] running `Command { std: "docker" "start" "-a" "cfe73233fc2b9e3e692673a173a71360fdf8024e7cf33fba9b5f69e36c57e40b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfe73233fc2b9e3e692673a173a71360fdf8024e7cf33fba9b5f69e36c57e40b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfe73233fc2b9e3e692673a173a71360fdf8024e7cf33fba9b5f69e36c57e40b", kill_on_drop: false }`
[INFO] [stdout] cfe73233fc2b9e3e692673a173a71360fdf8024e7cf33fba9b5f69e36c57e40b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de3b2854cd69c56cfb3f1118917f0bdf197847e47ba92ceedf3f76b230b9d74a
[INFO] running `Command { std: "docker" "start" "-a" "de3b2854cd69c56cfb3f1118917f0bdf197847e47ba92ceedf3f76b230b9d74a", kill_on_drop: false }`
[INFO] [stderr]    Compiling usize_cast v1.1.0
[INFO] [stderr]    Compiling mediumvec v1.3.1
[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, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, 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, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, 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" "de3b2854cd69c56cfb3f1118917f0bdf197847e47ba92ceedf3f76b230b9d74a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de3b2854cd69c56cfb3f1118917f0bdf197847e47ba92ceedf3f76b230b9d74a", kill_on_drop: false }`
[INFO] [stdout] de3b2854cd69c56cfb3f1118917f0bdf197847e47ba92ceedf3f76b230b9d74a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91d09fe4c96915128498110108b3d55c013bf275f19fb3c3d036d2a0bd55ff72
[INFO] running `Command { std: "docker" "start" "-a" "91d09fe4c96915128498110108b3d55c013bf275f19fb3c3d036d2a0bd55ff72", 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, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, 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, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, 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, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, 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, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, 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 0.42s
[INFO] running `Command { std: "docker" "inspect" "91d09fe4c96915128498110108b3d55c013bf275f19fb3c3d036d2a0bd55ff72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91d09fe4c96915128498110108b3d55c013bf275f19fb3c3d036d2a0bd55ff72", kill_on_drop: false }`
[INFO] [stdout] 91d09fe4c96915128498110108b3d55c013bf275f19fb3c3d036d2a0bd55ff72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7fc507666f70308b4947f28470a0c723dafb75b961cf09badf513361069c5737
[INFO] running `Command { std: "docker" "start" "-a" "7fc507666f70308b4947f28470a0c723dafb75b961cf09badf513361069c5737", 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, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, 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, functions, unions, required trait methods, provided trait methods, inherent methods, foreign functions, 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 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/string32-b9bfd18490c88762)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_hash ... ok
[INFO] [stdout] test tests::test_simple ... ok
[INFO] [stdout] test tests::test_complex ... ok
[INFO] [stderr]    Doc-tests string32
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stdout] test src/str32.rs - str32::Str32::trim_end (line 369) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::to_uppercase (line 294) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::as_bytes (line 44) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::len (line 110) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::trim_start (line 354) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::to_ascii_uppercase (line 324) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::to_lowercase (line 279) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::as_string (line 77) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::as_bytes_mut (line 59) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::is_empty (line 125) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::capacity (line 57) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::make_ascii_uppercase (line 243) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::trim (line 339) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::as_str (line 23) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::make_ascii_lowercase (line 228) ... ok
[INFO] [stdout] test src/str32.rs - str32::Str32::to_ascii_lowercase (line 309) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::remove (line 155) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::pop (line 136) ... 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::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::insert_str (line 193) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::insert (line 174) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::reserve_exact (line 227) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::reserve (line 211) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::push (line 101) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::shrink_to_fit (line 241) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::truncate (line 255) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::with_capacity (line 41) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::split_off (line 320) ... ok
[INFO] [stdout] test src/string32.rs - string32::String32::clear (line 270) ... FAILED
[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' (907) 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:     0x5aaf39dcff92 - std::backtrace_rs::backtrace::libunwind::trace::h62f3c6bea0fedab3
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5aaf39dcff92 - std::backtrace_rs::backtrace::trace_unsynchronized::hc41aaca6c0af0bde
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5aaf39dcff92 - std::sys::backtrace::_print_fmt::h33ac2b97007106cc
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5aaf39dcff92 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h4e0a3aeea0f9c085
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5aaf39ddec5f - core::fmt::rt::Argument::fmt::h1edd6a3e00b22f10
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5aaf39ddec5f - core::fmt::write::hecf68a131630c74d
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x5aaf39dae841 - std::io::default_write_fmt::haf8355dc2afbec95
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5aaf39dae841 - std::io::Write::write_fmt::h93c9a261259c931a
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5aaf39db38c2 - std::sys::backtrace::BacktraceLock::print::h75160192768e5621
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5aaf39db511c - std::panicking::default_hook::{{closure}}::h14d82797cfb1ddcb
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x5aaf39db4f76 - std::panicking::default_hook::h63f9bf8161c5d325
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:328:9
[INFO] [stdout]   11:     0x5aaf39db57a5 - std::panicking::panic_with_hook::h3173740e06bd0752
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:834:13
[INFO] [stdout]   12:     0x5aaf39db5606 - std::panicking::panic_handler::{{closure}}::hbac492c61eb56a87
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:700:13
[INFO] [stdout]   13:     0x5aaf39db39f9 - std::sys::backtrace::__rust_end_short_backtrace::haa3eac3df9535320
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x5aaf39da337d - __rustc[de0091b922c53d7e]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:698:5
[INFO] [stdout]   15:     0x5aaf39de198d - core::panicking::panic_nounwind_fmt::runtime::he6eac78ff6d199a6
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panicking.rs:117:22
[INFO] [stdout]   16:     0x5aaf39de198d - core::panicking::panic_nounwind_fmt::hf2634cf9a3927743
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/intrinsics/mod.rs:2435:9
[INFO] [stdout]   17:     0x5aaf39da2f5c - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked_mut::precondition_check::h17a86b75859890a4
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/ub_checks.rs:72:21
[INFO] [stdout]   18:     0x5aaf39da2ea9 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked_mut::h4bdcfadc7fa89e9d
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/ub_checks.rs:77:17
[INFO] [stdout]   19:     0x5aaf39da20b9 - core::slice::<impl [T]>::get_unchecked_mut::h149d7df7c9221990
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/slice/mod.rs:689:30
[INFO] [stdout]   20:     0x5aaf39da2574 - mediumvec::vec32::Vec32<T>::truncate::h62ff05f60ea4eb3e
[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:     0x5aaf39da22ed - mediumvec::vec32::Vec32<T>::clear::h6b0299bbf33a4d4d
[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:     0x5aaf39da16bb - string32::string32::String32::clear::hd8b386675fbf8ca5
[INFO] [stdout]                                at /opt/rustwide/workdir/src/string32.rs:278:16
[INFO] [stdout]   23:     0x5aaf39da0318 - rust_out::main::_doctest_main_src_string32_rs_270_0::h50be2abb6ef56b2e
[INFO] [stdout]   24:     0x5aaf39da0276 - rust_out::main::hcbdc0960c876f2af
[INFO] [stdout]   25:     0x5aaf39da0213 - core::ops::function::FnOnce::call_once::hfb4119cacd246208
[INFO] [stdout]   26:     0x5aaf39da01b6 - std::sys::backtrace::__rust_begin_short_backtrace::h410c329a888fe2f7
[INFO] [stdout]   27:     0x5aaf39da0199 - std::rt::lang_start::{{closure}}::h39fc2126d871a896
[INFO] [stdout]   28:     0x5aaf39daf940 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hc7ed5622678f5124
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   29:     0x5aaf39daf940 - std::panicking::catch_unwind::do_call::hc59414a11cf2a25a
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   30:     0x5aaf39daf940 - std::panicking::catch_unwind::hff67b45e0819a036
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   31:     0x5aaf39daf940 - std::panic::catch_unwind::hec0fb0db85f7fd60
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x5aaf39daf940 - std::rt::lang_start_internal::{{closure}}::h74bea026352620a3
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:175:24
[INFO] [stdout]   33:     0x5aaf39daf940 - std::panicking::catch_unwind::do_call::h931ef1bf7bdfcae2
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40
[INFO] [stdout]   34:     0x5aaf39daf940 - std::panicking::catch_unwind::h3816830c825cbe04
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19
[INFO] [stdout]   35:     0x5aaf39daf940 - std::panic::catch_unwind::h408406c8f02ebb9d
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14
[INFO] [stdout]   36:     0x5aaf39daf940 - std::rt::lang_start_internal::hce2b8b328837374b
[INFO] [stdout]                                at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:171:5
[INFO] [stdout]   37:     0x5aaf39da0181 - std::rt::lang_start::h866de1957bb2b812
[INFO] [stdout]   38:     0x5aaf39da03e5 - main
[INFO] [stdout]   39:     0x74a2ee3821ca - <unknown>
[INFO] [stdout]   40:     0x74a2ee38228b - __libc_start_main
[INFO] [stdout]   41:     0x5aaf39da0095 - _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 1.26s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "7fc507666f70308b4947f28470a0c723dafb75b961cf09badf513361069c5737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fc507666f70308b4947f28470a0c723dafb75b961cf09badf513361069c5737", kill_on_drop: false }`
[INFO] [stdout] 7fc507666f70308b4947f28470a0c723dafb75b961cf09badf513361069c5737
