[INFO] fetching crate populated 0.0.6...
[INFO] checking populated-0.0.6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate populated 0.0.6 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate populated 0.0.6
[INFO] finished tweaking crates.io crate populated 0.0.6
[INFO] tweaked toml for crates.io crate populated 0.0.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate populated 0.0.6 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb5eb133c54dd3dd89aef39ea984bb67648b2477fdf7bb27d6e91e13e6efe4d0
[INFO] running `Command { std: "docker" "start" "-a" "eb5eb133c54dd3dd89aef39ea984bb67648b2477fdf7bb27d6e91e13e6efe4d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb5eb133c54dd3dd89aef39ea984bb67648b2477fdf7bb27d6e91e13e6efe4d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb5eb133c54dd3dd89aef39ea984bb67648b2477fdf7bb27d6e91e13e6efe4d0", kill_on_drop: false }`
[INFO] [stdout] eb5eb133c54dd3dd89aef39ea984bb67648b2477fdf7bb27d6e91e13e6efe4d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cfca3dcd9e7e1610ce5fdf4be8f22dd736d93f3ecee9356ddc27760129afa83
[INFO] running `Command { std: "docker" "start" "-a" "5cfca3dcd9e7e1610ce5fdf4be8f22dd736d93f3ecee9356ddc27760129afa83", kill_on_drop: false }`
[INFO] [stderr]     Checking populated v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:588:21
[INFO] [stdout]     |
[INFO] [stdout] 588 |     pub fn iter_mut(&mut self) -> slice::PopulatedIterMut<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] 588 |     pub fn iter_mut(&mut self) -> slice::PopulatedIterMut<'_, T> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:781:17
[INFO] [stdout]     |
[INFO] [stdout] 781 |     pub fn iter(&self) -> slice::PopulatedIter<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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 781 |     pub fn iter(&self) -> slice::PopulatedIter<'_, T> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:786:21
[INFO] [stdout]     |
[INFO] [stdout] 786 |     pub fn iter_mut(&mut self) -> slice::PopulatedIterMut<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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 786 |     pub fn iter_mut(&mut self) -> slice::PopulatedIterMut<'_, T> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1491:18
[INFO] [stdout]      |
[INFO] [stdout] 1491 |     pub fn range(&self, range: impl RangeBounds<usize>) -> std::collections::vec_deque::Iter<T> {
[INFO] [stdout]      |                  ^^^^^ the lifetime is elided here         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1491 |     pub fn range(&self, range: impl RangeBounds<usize>) -> std::collections::vec_deque::Iter<'_, T> {
[INFO] [stdout]      |                                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1498:9
[INFO] [stdout]      |
[INFO] [stdout] 1498 |         &mut self,
[INFO] [stdout]      |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 1499 |         range: impl RangeBounds<usize>,
[INFO] [stdout] 1500 |     ) -> std::collections::vec_deque::IterMut<T> {
[INFO] [stdout]      |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1500 |     ) -> std::collections::vec_deque::IterMut<'_, T> {
[INFO] [stdout]      |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1765:17
[INFO] [stdout]      |
[INFO] [stdout] 1765 |     pub fn iter(&self) -> vec_deque::PopulatedIter<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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1765 |     pub fn iter(&self) -> vec_deque::PopulatedIter<'_, T> {
[INFO] [stdout]      |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1769:21
[INFO] [stdout]      |
[INFO] [stdout] 1769 |     pub fn iter_mut(&mut self) -> vec_deque::PopulatedIterMut<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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1769 |     pub fn iter_mut(&mut self) -> vec_deque::PopulatedIterMut<'_, T> {
[INFO] [stdout]      |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:2789:17
[INFO] [stdout]      |
[INFO] [stdout] 2789 |     pub fn iter(&self) -> hash_map::PopulatedIter<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 2789 |     pub fn iter(&self) -> hash_map::PopulatedIter<'_, K, V> {
[INFO] [stdout]      |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:2793:21
[INFO] [stdout]      |
[INFO] [stdout] 2793 |     pub fn iter_mut(&mut self) -> hash_map::PopulatedIterMut<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 2793 |     pub fn iter_mut(&mut self) -> hash_map::PopulatedIterMut<'_, K, V> {
[INFO] [stdout]      |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:2797:17
[INFO] [stdout]      |
[INFO] [stdout] 2797 |     pub fn keys(&self) -> hash_map::PopulatedKeys<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 2797 |     pub fn keys(&self) -> hash_map::PopulatedKeys<'_, K, V> {
[INFO] [stdout]      |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:2803:19
[INFO] [stdout]      |
[INFO] [stdout] 2803 |     pub fn values(&self) -> hash_map::PopulatedValues<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 2803 |     pub fn values(&self) -> hash_map::PopulatedValues<'_, K, V> {
[INFO] [stdout]      |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:2809:23
[INFO] [stdout]      |
[INFO] [stdout] 2809 |     pub fn values_mut(&mut self) -> hash_map::PopulatedValuesMut<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 2809 |     pub fn values_mut(&mut self) -> hash_map::PopulatedValuesMut<'_, K, V> {
[INFO] [stdout]      |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:3133:17
[INFO] [stdout]      |
[INFO] [stdout] 3133 |     pub fn iter(&self) -> std::collections::hash_set::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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3133 |     pub fn iter(&self) -> std::collections::hash_set::Iter<'_, T> {
[INFO] [stdout]      |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:3966:17
[INFO] [stdout]      |
[INFO] [stdout] 3966 |     pub fn iter(&self) -> btree_map::PopulatedIter<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3966 |     pub fn iter(&self) -> btree_map::PopulatedIter<'_, K, V> {
[INFO] [stdout]      |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:3970:21
[INFO] [stdout]      |
[INFO] [stdout] 3970 |     pub fn iter_mut(&mut self) -> btree_map::PopulatedIterMut<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3970 |     pub fn iter_mut(&mut self) -> btree_map::PopulatedIterMut<'_, K, V> {
[INFO] [stdout]      |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:3974:17
[INFO] [stdout]      |
[INFO] [stdout] 3974 |     pub fn keys(&self) -> btree_map::PopulatedKeys<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3974 |     pub fn keys(&self) -> btree_map::PopulatedKeys<'_, K, V> {
[INFO] [stdout]      |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:3980:19
[INFO] [stdout]      |
[INFO] [stdout] 3980 |     pub fn values(&self) -> btree_map::PopulatedValues<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3980 |     pub fn values(&self) -> btree_map::PopulatedValues<'_, K, V> {
[INFO] [stdout]      |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:3986:23
[INFO] [stdout]      |
[INFO] [stdout] 3986 |     pub fn values_mut(&mut self) -> btree_map::PopulatedValuesMut<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3986 |     pub fn values_mut(&mut self) -> btree_map::PopulatedValuesMut<'_, K, V> {
[INFO] [stdout]      |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:4040:17
[INFO] [stdout]      |
[INFO] [stdout] 4040 |     pub fn iter(&self) -> btree_set::PopulatedIter<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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 4040 |     pub fn iter(&self) -> btree_set::PopulatedIter<'_, T> {
[INFO] [stdout]      |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:4851:18
[INFO] [stdout]      |
[INFO] [stdout] 4851 |     pub fn chars(&self) -> 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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 4851 |     pub fn chars(&self) -> str::Chars<'_> {
[INFO] [stdout]      |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:588:21
[INFO] [stdout]     |
[INFO] [stdout] 588 |     pub fn iter_mut(&mut self) -> slice::PopulatedIterMut<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] 588 |     pub fn iter_mut(&mut self) -> slice::PopulatedIterMut<'_, T> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:781:17
[INFO] [stdout]     |
[INFO] [stdout] 781 |     pub fn iter(&self) -> slice::PopulatedIter<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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 781 |     pub fn iter(&self) -> slice::PopulatedIter<'_, T> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:786:21
[INFO] [stdout]     |
[INFO] [stdout] 786 |     pub fn iter_mut(&mut self) -> slice::PopulatedIterMut<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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 786 |     pub fn iter_mut(&mut self) -> slice::PopulatedIterMut<'_, T> {
[INFO] [stdout]     |                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1491:18
[INFO] [stdout]      |
[INFO] [stdout] 1491 |     pub fn range(&self, range: impl RangeBounds<usize>) -> std::collections::vec_deque::Iter<T> {
[INFO] [stdout]      |                  ^^^^^ the lifetime is elided here         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1491 |     pub fn range(&self, range: impl RangeBounds<usize>) -> std::collections::vec_deque::Iter<'_, T> {
[INFO] [stdout]      |                                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1498:9
[INFO] [stdout]      |
[INFO] [stdout] 1498 |         &mut self,
[INFO] [stdout]      |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 1499 |         range: impl RangeBounds<usize>,
[INFO] [stdout] 1500 |     ) -> std::collections::vec_deque::IterMut<T> {
[INFO] [stdout]      |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1500 |     ) -> std::collections::vec_deque::IterMut<'_, T> {
[INFO] [stdout]      |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1765:17
[INFO] [stdout]      |
[INFO] [stdout] 1765 |     pub fn iter(&self) -> vec_deque::PopulatedIter<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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1765 |     pub fn iter(&self) -> vec_deque::PopulatedIter<'_, T> {
[INFO] [stdout]      |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:1769:21
[INFO] [stdout]      |
[INFO] [stdout] 1769 |     pub fn iter_mut(&mut self) -> vec_deque::PopulatedIterMut<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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1769 |     pub fn iter_mut(&mut self) -> vec_deque::PopulatedIterMut<'_, T> {
[INFO] [stdout]      |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:2789:17
[INFO] [stdout]      |
[INFO] [stdout] 2789 |     pub fn iter(&self) -> hash_map::PopulatedIter<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 2789 |     pub fn iter(&self) -> hash_map::PopulatedIter<'_, K, V> {
[INFO] [stdout]      |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:2793:21
[INFO] [stdout]      |
[INFO] [stdout] 2793 |     pub fn iter_mut(&mut self) -> hash_map::PopulatedIterMut<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 2793 |     pub fn iter_mut(&mut self) -> hash_map::PopulatedIterMut<'_, K, V> {
[INFO] [stdout]      |                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:2797:17
[INFO] [stdout]      |
[INFO] [stdout] 2797 |     pub fn keys(&self) -> hash_map::PopulatedKeys<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 2797 |     pub fn keys(&self) -> hash_map::PopulatedKeys<'_, K, V> {
[INFO] [stdout]      |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:2803:19
[INFO] [stdout]      |
[INFO] [stdout] 2803 |     pub fn values(&self) -> hash_map::PopulatedValues<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 2803 |     pub fn values(&self) -> hash_map::PopulatedValues<'_, K, V> {
[INFO] [stdout]      |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:2809:23
[INFO] [stdout]      |
[INFO] [stdout] 2809 |     pub fn values_mut(&mut self) -> hash_map::PopulatedValuesMut<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 2809 |     pub fn values_mut(&mut self) -> hash_map::PopulatedValuesMut<'_, K, V> {
[INFO] [stdout]      |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:3133:17
[INFO] [stdout]      |
[INFO] [stdout] 3133 |     pub fn iter(&self) -> std::collections::hash_set::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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3133 |     pub fn iter(&self) -> std::collections::hash_set::Iter<'_, T> {
[INFO] [stdout]      |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:3966:17
[INFO] [stdout]      |
[INFO] [stdout] 3966 |     pub fn iter(&self) -> btree_map::PopulatedIter<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3966 |     pub fn iter(&self) -> btree_map::PopulatedIter<'_, K, V> {
[INFO] [stdout]      |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:3970:21
[INFO] [stdout]      |
[INFO] [stdout] 3970 |     pub fn iter_mut(&mut self) -> btree_map::PopulatedIterMut<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3970 |     pub fn iter_mut(&mut self) -> btree_map::PopulatedIterMut<'_, K, V> {
[INFO] [stdout]      |                                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:3974:17
[INFO] [stdout]      |
[INFO] [stdout] 3974 |     pub fn keys(&self) -> btree_map::PopulatedKeys<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3974 |     pub fn keys(&self) -> btree_map::PopulatedKeys<'_, K, V> {
[INFO] [stdout]      |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:3980:19
[INFO] [stdout]      |
[INFO] [stdout] 3980 |     pub fn values(&self) -> btree_map::PopulatedValues<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3980 |     pub fn values(&self) -> btree_map::PopulatedValues<'_, K, V> {
[INFO] [stdout]      |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:3986:23
[INFO] [stdout]      |
[INFO] [stdout] 3986 |     pub fn values_mut(&mut self) -> btree_map::PopulatedValuesMut<K, V> {
[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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 3986 |     pub fn values_mut(&mut self) -> btree_map::PopulatedValuesMut<'_, K, V> {
[INFO] [stdout]      |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:4040:17
[INFO] [stdout]      |
[INFO] [stdout] 4040 |     pub fn iter(&self) -> btree_set::PopulatedIter<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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 4040 |     pub fn iter(&self) -> btree_set::PopulatedIter<'_, T> {
[INFO] [stdout]      |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> src/lib.rs:4851:18
[INFO] [stdout]      |
[INFO] [stdout] 4851 |     pub fn chars(&self) -> 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] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 4851 |     pub fn chars(&self) -> str::Chars<'_> {
[INFO] [stdout]      |                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&PopulatedSlice<i32>, Infallible>
[INFO] [stdout]     --> src/lib.rs:5288:41
[INFO] [stdout]      |
[INFO] [stdout] 5288 |         let slice: &PopulatedSlice<_> = TryFrom::try_from(&vec[..]).unwrap();
[INFO] [stdout]      |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&mut PopulatedSlice<i32>, Infallible>
[INFO] [stdout]     --> src/lib.rs:5301:45
[INFO] [stdout]      |
[INFO] [stdout] 5301 |         let slice: &mut PopulatedSlice<_> = TryFrom::try_from(&mut vec[..]).unwrap();
[INFO] [stdout]      |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `populated` (lib test) due to 2 previous errors; 20 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "5cfca3dcd9e7e1610ce5fdf4be8f22dd736d93f3ecee9356ddc27760129afa83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cfca3dcd9e7e1610ce5fdf4be8f22dd736d93f3ecee9356ddc27760129afa83", kill_on_drop: false }`
[INFO] [stdout] 5cfca3dcd9e7e1610ce5fdf4be8f22dd736d93f3ecee9356ddc27760129afa83
