[INFO] fetching crate typed-arena-nomut 0.1.0...
[INFO] testing typed-arena-nomut-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate typed-arena-nomut 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate typed-arena-nomut 0.1.0
[INFO] finished tweaking crates.io crate typed-arena-nomut 0.1.0
[INFO] tweaked toml for crates.io crate typed-arena-nomut 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate typed-arena-nomut 0.1.0 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 63 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.8.2)
[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] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[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] 3af06b402bf021a172698b6fc5851afac17d16a244bd6cedee6e035db094acf2
[INFO] running `Command { std: "docker" "start" "-a" "3af06b402bf021a172698b6fc5851afac17d16a244bd6cedee6e035db094acf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3af06b402bf021a172698b6fc5851afac17d16a244bd6cedee6e035db094acf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3af06b402bf021a172698b6fc5851afac17d16a244bd6cedee6e035db094acf2", kill_on_drop: false }`
[INFO] [stdout] 3af06b402bf021a172698b6fc5851afac17d16a244bd6cedee6e035db094acf2
[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] 353df6915c288996f523f6e4cde5da7b736c036d1148771b6b10e47e04109f59
[INFO] running `Command { std: "docker" "start" "-a" "353df6915c288996f523f6e4cde5da7b736c036d1148771b6b10e47e04109f59", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling typed-arena-nomut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:493:17
[INFO] [stdout]     |
[INFO] [stdout] 493 |     pub fn iter(&self) -> Iter<T> {
[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] 493 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "353df6915c288996f523f6e4cde5da7b736c036d1148771b6b10e47e04109f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "353df6915c288996f523f6e4cde5da7b736c036d1148771b6b10e47e04109f59", kill_on_drop: false }`
[INFO] [stdout] 353df6915c288996f523f6e4cde5da7b736c036d1148771b6b10e47e04109f59
[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] 62b1e489bf89acc408a98ae666dce10574e3447d0cf8c1323e315a9827a1c36f
[INFO] running `Command { std: "docker" "start" "-a" "62b1e489bf89acc408a98ae666dce10574e3447d0cf8c1323e315a9827a1c36f", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling half v1.8.3
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:493:17
[INFO] [stdout]     |
[INFO] [stdout] 493 |     pub fn iter(&self) -> Iter<T> {
[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] 493 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling typed-arena-nomut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `2` is never read
[INFO] [stdout]   --> src/test.rs:14:56
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct Node<'a, 'b: 'a>(Option<&'a Node<'a, 'b>>, u32, DropTracker<'b>);
[INFO] [stdout]    |        ---- field in this struct                       ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:493:17
[INFO] [stdout]     |
[INFO] [stdout] 493 |     pub fn iter(&self) -> Iter<T> {
[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] 493 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/test.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         mem::drop(node);
[INFO] [stdout]    |         ^^^^^^^^^^----^
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   argument has type `&Node<'_, '_>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 42 -         mem::drop(node);
[INFO] [stdout] 42 +         let _ = node;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/test.rs:167:17
[INFO] [stdout]     |
[INFO] [stdout] 167 |         assert!((*uninitialized).len() >= 2);
[INFO] [stdout]     |                 ^^-------------^^^^^^^
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   this raw pointer has type `*mut [MaybeUninit<Dropper>]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[MaybeUninit<Dropper>]`
[INFO] [stdout]    --> src/test.rs:167:17
[INFO] [stdout]     |
[INFO] [stdout] 167 |         assert!((*uninitialized).len() >= 2);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]    --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/slice/mod.rs:116:4
[INFO] [stdout]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 167 |         assert!((&(*uninitialized)).len() >= 2);
[INFO] [stdout]     |                 ++                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 21.92s
[INFO] running `Command { std: "docker" "inspect" "62b1e489bf89acc408a98ae666dce10574e3447d0cf8c1323e315a9827a1c36f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62b1e489bf89acc408a98ae666dce10574e3447d0cf8c1323e315a9827a1c36f", kill_on_drop: false }`
[INFO] [stdout] 62b1e489bf89acc408a98ae666dce10574e3447d0cf8c1323e315a9827a1c36f
[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] a35d45dc68b921a586f9b7ca6f530b14d33039cfd13efa6b396910913d1b8549
[INFO] running `Command { std: "docker" "start" "-a" "a35d45dc68b921a586f9b7ca6f530b14d33039cfd13efa6b396910913d1b8549", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:493:17
[INFO] [stderr]     |
[INFO] [stderr] 493 |     pub fn iter(&self) -> Iter<T> {
[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] 493 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: `typed-arena-nomut` (lib) generated 1 warning (run `cargo fix --lib -p typed-arena-nomut` to apply 1 suggestion)
[INFO] [stderr] warning: field `2` is never read
[INFO] [stderr]   --> src/test.rs:14:56
[INFO] [stderr]    |
[INFO] [stderr] 14 | struct Node<'a, 'b: 'a>(Option<&'a Node<'a, 'b>>, u32, DropTracker<'b>);
[INFO] [stderr]    |        ---- field in this struct                       ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> src/test.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |         mem::drop(node);
[INFO] [stderr]    |         ^^^^^^^^^^----^
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   argument has type `&Node<'_, '_>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 42 -         mem::drop(node);
[INFO] [stderr] 42 +         let _ = node;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stderr]    --> src/test.rs:167:17
[INFO] [stderr]     |
[INFO] [stderr] 167 |         assert!((*uninitialized).len() >= 2);
[INFO] [stderr]     |                 ^^-------------^^^^^^^
[INFO] [stderr]     |                   |
[INFO] [stderr]     |                   this raw pointer has type `*mut [MaybeUninit<Dropper>]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stderr] note: autoref is being applied to this expression, resulting in: `&[MaybeUninit<Dropper>]`
[INFO] [stderr]    --> src/test.rs:167:17
[INFO] [stderr]     |
[INFO] [stderr] 167 |         assert!((*uninitialized).len() >= 2);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stderr] note: method calls to `len` require a reference
[INFO] [stderr]    --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/slice/mod.rs:116:4
[INFO] [stderr]     = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stderr] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stderr]     |
[INFO] [stderr] 167 |         assert!((&(*uninitialized)).len() >= 2);
[INFO] [stderr]     |                 ++                +
[INFO] [stderr] 
[INFO] [stderr] warning: `typed-arena-nomut` (lib test) generated 4 warnings (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/typed_arena_nomut-e43a8a6e21f39599)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test test::arena_is_send ... ok
[INFO] [stdout] test test::arena_as_intended ... ok
[INFO] [stdout] test test::ensure_into_vec_maintains_order_of_allocation ... ok
[INFO] [stdout] test test::iter_mut_high_capacity ... ok
[INFO] [stdout] test test::dont_trust_the_iterator_size ... ok
[INFO] [stdout] test test::iter_mut_low_capacity ... ok
[INFO] [stdout] test test::size_hint ... ok
[INFO] [stdout] test test::test_alloc_extend ... ok
[INFO] [stdout] test test::test_alloc_uninitialized ... ok
[INFO] [stdout] test test::test_alloc_extend_with_drop_counter ... ok
[INFO] [stdout] test test::test_zero_cap ... ok
[INFO] [stdout] test test::test_uninitialized_array ... ok
[INFO] [stdout] test test::test_alloc_uninitialized_bools ... ok
[INFO] [stdout] test test::alloc_uninitialized_with_panic ... ok
[INFO] [stdout] test test::size_hint_low_initial_capacities ... ok
[INFO] [stdout] test test::size_hint_high_initial_capacities ... ok
[INFO] [stdout] test test::size_hint_many_items ... ok
[INFO] [stderr]    Doc-tests typed_arena_nomut
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.24s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/lib.rs - Arena<T>::new (line 117) ... ok
[INFO] [stdout] test src/lib.rs - Arena<T>::iter (line 479) ... ok
[INFO] [stdout] test src/lib.rs - Arena<T>::alloc_extend (line 216) ... ok
[INFO] [stdout] test src/lib.rs - Arena<T>::len (line 154) ... ok
[INFO] [stdout] test src/lib.rs - Arena<T>::alloc_uninitialized (line 290) ... ok
[INFO] [stdout] test src/lib.rs - Arena<T>::alloc_uninitialized (line 320) ... FAILED
[INFO] [stdout] test src/lib.rs - Arena (line 91) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] test src/lib.rs - Arena<T>::alloc (line 179) ... ok
[INFO] [stdout] test src/lib.rs - Arena<u8>::alloc_str (line 524) ... ok
[INFO] [stdout] test src/lib.rs - Arena<T>::with_capacity (line 132) ... ok
[INFO] [stdout] test src/lib.rs - Arena<T>::into_vec (line 418) ... ok
[INFO] [stdout] test src/lib.rs - Arena<T>::iter (line 452) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Arena<T>::alloc_uninitialized (line 320) stdout ----
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/lib.rs:339:13
[INFO] [stdout]     |
[INFO] [stdout] 339 |     assert!((*uninitialized).len() >= COUNT); // Ensured by the reserve_extend
[INFO] [stdout]     |             ^^-------------^^^^^^^
[INFO] [stdout]     |               |
[INFO] [stdout]     |               this raw pointer has type `*mut [MaybeUninit<String>]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[MaybeUninit<String>]`
[INFO] [stdout]    --> src/lib.rs:339:13
[INFO] [stdout]     |
[INFO] [stdout] 339 |     assert!((*uninitialized).len() >= COUNT); // Ensured by the reserve_extend
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]    --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/slice/mod.rs:116:4
[INFO] [stdout]     = note: `#[deny(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 339 |     assert!((&(*uninitialized)).len() >= COUNT); // Ensured by the reserve_extend
[INFO] [stdout]     |             ++                +
[INFO] [stdout] 
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/lib.rs:340:22
[INFO] [stdout]     |
[INFO] [stdout] 340 |     for elem in &mut (*uninitialized)[..COUNT] {
[INFO] [stdout]     |                      ^^-------------^^^^^^^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        this raw pointer has type `*mut [MaybeUninit<String>]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&mut [MaybeUninit<String>]`
[INFO] [stdout]    --> src/lib.rs:340:22
[INFO] [stdout]     |
[INFO] [stdout] 340 |     for elem in &mut (*uninitialized)[..COUNT] {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 340 |     for elem in &mut (&mut (*uninitialized))[..COUNT] {
[INFO] [stdout]     |                      +++++                 +
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Arena<T>::alloc_uninitialized (line 320)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 13 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.85s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "a35d45dc68b921a586f9b7ca6f530b14d33039cfd13efa6b396910913d1b8549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a35d45dc68b921a586f9b7ca6f530b14d33039cfd13efa6b396910913d1b8549", kill_on_drop: false }`
[INFO] [stdout] a35d45dc68b921a586f9b7ca6f530b14d33039cfd13efa6b396910913d1b8549
