[INFO] fetching crate streaming_algorithms 0.3.0...
[INFO] checking streaming_algorithms-0.3.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate streaming_algorithms 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate streaming_algorithms 0.3.0
[INFO] finished tweaking crates.io crate streaming_algorithms 0.3.0
[INFO] tweaked toml for crates.io crate streaming_algorithms 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate streaming_algorithms 0.3.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.9.2)
[INFO] [stderr]       Adding twox-hash v1.6.3 (available: v2.1.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95b4eee8810b90a9ce69d56d37de328eab77ef4f07dee9b8a8efd123fd4f1544
[INFO] running `Command { std: "docker" "start" "-a" "95b4eee8810b90a9ce69d56d37de328eab77ef4f07dee9b8a8efd123fd4f1544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95b4eee8810b90a9ce69d56d37de328eab77ef4f07dee9b8a8efd123fd4f1544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95b4eee8810b90a9ce69d56d37de328eab77ef4f07dee9b8a8efd123fd4f1544", kill_on_drop: false }`
[INFO] [stdout] 95b4eee8810b90a9ce69d56d37de328eab77ef4f07dee9b8a8efd123fd4f1544
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9174f498fdbe60c6cecdc536a7f13d5c5c7b8356793b988b901a5b9b40cc0dc0
[INFO] running `Command { std: "docker" "start" "-a" "9174f498fdbe60c6cecdc536a7f13d5c5c7b8356793b988b901a5b9b40cc0dc0", kill_on_drop: false }`
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking streaming_algorithms v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `assert`
[INFO] [stdout]   --> src/linked_list.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |         if !cfg!(feature = "assert") {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `nightly` and `packed_simd`
[INFO] [stdout]    = help: consider adding `assert` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `assert`
[INFO] [stdout]   --> src/ordered_linked_list.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |         if !cfg!(feature = "assert") {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `nightly` and `packed_simd`
[INFO] [stdout]    = help: consider adding `assert` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sample.rs:67:24
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn into_iter(self) -> std::vec::IntoIter<T> {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:34:2
[INFO] [stdout]    |
[INFO] [stdout] 34 |     unused_qualifications,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 67 -     fn into_iter(self) -> std::vec::IntoIter<T> {
[INFO] [stdout] 67 +     fn into_iter(self) -> vec::IntoIter<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sample.rs:71:14
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl<T, Idx> std::ops::Index<Idx> for FixedCapVec<T>
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 71 - impl<T, Idx> std::ops::Index<Idx> for FixedCapVec<T>
[INFO] [stdout] 71 + impl<T, Idx> ops::Index<Idx> for FixedCapVec<T>
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sample.rs:75:16
[INFO] [stdout]    |
[INFO] [stdout] 75 |     type Output = <Vec<T> as std::ops::Index<Idx>>::Output;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 75 -     type Output = <Vec<T> as std::ops::Index<Idx>>::Output;
[INFO] [stdout] 75 +     type Output = <Vec<T> as ops::Index<Idx>>::Output;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sample.rs:77:3
[INFO] [stdout]    |
[INFO] [stdout] 77 |         std::ops::Index::index(&self.0, index)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 77 -         std::ops::Index::index(&self.0, index)
[INFO] [stdout] 77 +         ops::Index::index(&self.0, index)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sample.rs:80:14
[INFO] [stdout]    |
[INFO] [stdout] 80 | impl<T, Idx> std::ops::IndexMut<Idx> for FixedCapVec<T>
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 80 - impl<T, Idx> std::ops::IndexMut<Idx> for FixedCapVec<T>
[INFO] [stdout] 80 + impl<T, Idx> ops::IndexMut<Idx> for FixedCapVec<T>
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sample.rs:85:3
[INFO] [stdout]    |
[INFO] [stdout] 85 |         std::ops::IndexMut::index_mut(&mut self.0, index)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 85 -         std::ops::IndexMut::index_mut(&mut self.0, index)
[INFO] [stdout] 85 +         ops::IndexMut::index_mut(&mut self.0, index)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `assert`
[INFO] [stdout]   --> src/top.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |         if !cfg!(feature = "assert") {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `nightly` and `packed_simd`
[INFO] [stdout]    = help: consider adding `assert` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `assert`
[INFO] [stdout]   --> src/linked_list.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |         if !cfg!(feature = "assert") {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `nightly` and `packed_simd`
[INFO] [stdout]    = help: consider adding `assert` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `assert`
[INFO] [stdout]   --> src/ordered_linked_list.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |         if !cfg!(feature = "assert") {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `nightly` and `packed_simd`
[INFO] [stdout]    = help: consider adding `assert` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sample.rs:67:24
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn into_iter(self) -> std::vec::IntoIter<T> {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:34:2
[INFO] [stdout]    |
[INFO] [stdout] 34 |     unused_qualifications,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 67 -     fn into_iter(self) -> std::vec::IntoIter<T> {
[INFO] [stdout] 67 +     fn into_iter(self) -> vec::IntoIter<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sample.rs:71:14
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl<T, Idx> std::ops::Index<Idx> for FixedCapVec<T>
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 71 - impl<T, Idx> std::ops::Index<Idx> for FixedCapVec<T>
[INFO] [stdout] 71 + impl<T, Idx> ops::Index<Idx> for FixedCapVec<T>
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sample.rs:75:16
[INFO] [stdout]    |
[INFO] [stdout] 75 |     type Output = <Vec<T> as std::ops::Index<Idx>>::Output;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 75 -     type Output = <Vec<T> as std::ops::Index<Idx>>::Output;
[INFO] [stdout] 75 +     type Output = <Vec<T> as ops::Index<Idx>>::Output;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sample.rs:77:3
[INFO] [stdout]    |
[INFO] [stdout] 77 |         std::ops::Index::index(&self.0, index)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 77 -         std::ops::Index::index(&self.0, index)
[INFO] [stdout] 77 +         ops::Index::index(&self.0, index)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sample.rs:80:14
[INFO] [stdout]    |
[INFO] [stdout] 80 | impl<T, Idx> std::ops::IndexMut<Idx> for FixedCapVec<T>
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 80 - impl<T, Idx> std::ops::IndexMut<Idx> for FixedCapVec<T>
[INFO] [stdout] 80 + impl<T, Idx> ops::IndexMut<Idx> for FixedCapVec<T>
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sample.rs:85:3
[INFO] [stdout]    |
[INFO] [stdout] 85 |         std::ops::IndexMut::index_mut(&mut self.0, index)
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 85 -         std::ops::IndexMut::index_mut(&mut self.0, index)
[INFO] [stdout] 85 +         ops::IndexMut::index_mut(&mut self.0, index)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `assert`
[INFO] [stdout]   --> src/top.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |         if !cfg!(feature = "assert") {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `nightly` and `packed_simd`
[INFO] [stdout]    = help: consider adding `assert` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/linked_list.rs:99:14
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn head(&self) -> Option<LinkedListIndex> {
[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] 99 |     pub fn head(&self) -> Option<LinkedListIndex<'_>> {
[INFO] [stdout]    |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/linked_list.rs:107:14
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub fn tail(&self) -> Option<LinkedListIndex> {
[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] 107 |     pub fn tail(&self) -> Option<LinkedListIndex<'_>> {
[INFO] [stdout]     |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/linked_list.rs:122:19
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn push_back(&mut self, t: T) -> LinkedListIndex {
[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] 122 |     pub fn push_back(&mut self, t: T) -> LinkedListIndex<'_> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/linked_list.rs:135:20
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn push_front(&mut self, t: T) -> LinkedListIndex {
[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] 135 |     pub fn push_front(&mut self, t: T) -> LinkedListIndex<'_> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/linked_list.rs:178:22
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn insert_after(&mut self, index: LinkedListIndex, t: T) -> LinkedListIndex {
[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] 178 |     pub fn insert_after(&mut self, index: LinkedListIndex, t: T) -> LinkedListIndex<'_> {
[INFO] [stdout]     |                                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/linked_list.rs:192:23
[INFO] [stdout]     |
[INFO] [stdout] 192 |     pub fn insert_before(&mut self, index: LinkedListIndex, t: T) -> LinkedListIndex {
[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] 192 |     pub fn insert_before(&mut self, index: LinkedListIndex, t: T) -> LinkedListIndex<'_> {
[INFO] [stdout]     |                                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ordered_linked_list.rs:44:14
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn head(&self) -> Option<OrderedLinkedListIndex> {
[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] 44 |     pub fn head(&self) -> Option<OrderedLinkedListIndex<'_>> {
[INFO] [stdout]    |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ordered_linked_list.rs:48:14
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn tail(&self) -> Option<OrderedLinkedListIndex> {
[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] 48 |     pub fn tail(&self) -> Option<OrderedLinkedListIndex<'_>> {
[INFO] [stdout]    |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ordered_linked_list.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn push_back(&mut self, t: T) -> OrderedLinkedListIndex {
[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] 59 |     pub fn push_back(&mut self, t: T) -> OrderedLinkedListIndex<'_> {
[INFO] [stdout]    |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ordered_linked_list.rs:77:20
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn push_front(&mut self, t: T) -> OrderedLinkedListIndex {
[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] 77 |     pub fn push_front(&mut self, t: T) -> OrderedLinkedListIndex<'_> {
[INFO] [stdout]    |                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ordered_linked_list.rs:146:3
[INFO] [stdout]     |
[INFO] [stdout] 146 |         &mut self, _index: OrderedLinkedListIndex, _t: T,
[INFO] [stdout]     |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 147 |     ) -> OrderedLinkedListIndex {
[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] 147 |     ) -> OrderedLinkedListIndex<'_> {
[INFO] [stdout]     |                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ordered_linked_list.rs:151:3
[INFO] [stdout]     |
[INFO] [stdout] 151 |         &mut self, _index: OrderedLinkedListIndex, _t: T,
[INFO] [stdout]     |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 152 |     ) -> OrderedLinkedListIndex {
[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] 152 |     ) -> OrderedLinkedListIndex<'_> {
[INFO] [stdout]     |                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/linked_list.rs:99:14
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn head(&self) -> Option<LinkedListIndex> {
[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] 99 |     pub fn head(&self) -> Option<LinkedListIndex<'_>> {
[INFO] [stdout]    |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/linked_list.rs:107:14
[INFO] [stdout]     |
[INFO] [stdout] 107 |     pub fn tail(&self) -> Option<LinkedListIndex> {
[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] 107 |     pub fn tail(&self) -> Option<LinkedListIndex<'_>> {
[INFO] [stdout]     |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/linked_list.rs:122:19
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn push_back(&mut self, t: T) -> LinkedListIndex {
[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] 122 |     pub fn push_back(&mut self, t: T) -> LinkedListIndex<'_> {
[INFO] [stdout]     |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/linked_list.rs:135:20
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn push_front(&mut self, t: T) -> LinkedListIndex {
[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] 135 |     pub fn push_front(&mut self, t: T) -> LinkedListIndex<'_> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/linked_list.rs:178:22
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn insert_after(&mut self, index: LinkedListIndex, t: T) -> LinkedListIndex {
[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] 178 |     pub fn insert_after(&mut self, index: LinkedListIndex, t: T) -> LinkedListIndex<'_> {
[INFO] [stdout]     |                                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/linked_list.rs:192:23
[INFO] [stdout]     |
[INFO] [stdout] 192 |     pub fn insert_before(&mut self, index: LinkedListIndex, t: T) -> LinkedListIndex {
[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] 192 |     pub fn insert_before(&mut self, index: LinkedListIndex, t: T) -> LinkedListIndex<'_> {
[INFO] [stdout]     |                                                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ordered_linked_list.rs:44:14
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn head(&self) -> Option<OrderedLinkedListIndex> {
[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] 44 |     pub fn head(&self) -> Option<OrderedLinkedListIndex<'_>> {
[INFO] [stdout]    |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ordered_linked_list.rs:48:14
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn tail(&self) -> Option<OrderedLinkedListIndex> {
[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] 48 |     pub fn tail(&self) -> Option<OrderedLinkedListIndex<'_>> {
[INFO] [stdout]    |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ordered_linked_list.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn push_back(&mut self, t: T) -> OrderedLinkedListIndex {
[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] 59 |     pub fn push_back(&mut self, t: T) -> OrderedLinkedListIndex<'_> {
[INFO] [stdout]    |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/ordered_linked_list.rs:77:20
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn push_front(&mut self, t: T) -> OrderedLinkedListIndex {
[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] 77 |     pub fn push_front(&mut self, t: T) -> OrderedLinkedListIndex<'_> {
[INFO] [stdout]    |                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ordered_linked_list.rs:146:3
[INFO] [stdout]     |
[INFO] [stdout] 146 |         &mut self, _index: OrderedLinkedListIndex, _t: T,
[INFO] [stdout]     |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 147 |     ) -> OrderedLinkedListIndex {
[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] 147 |     ) -> OrderedLinkedListIndex<'_> {
[INFO] [stdout]     |                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/ordered_linked_list.rs:151:3
[INFO] [stdout]     |
[INFO] [stdout] 151 |         &mut self, _index: OrderedLinkedListIndex, _t: T,
[INFO] [stdout]     |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 152 |     ) -> OrderedLinkedListIndex {
[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] 152 |     ) -> OrderedLinkedListIndex<'_> {
[INFO] [stdout]     |                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.81s
[INFO] running `Command { std: "docker" "inspect" "9174f498fdbe60c6cecdc536a7f13d5c5c7b8356793b988b901a5b9b40cc0dc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9174f498fdbe60c6cecdc536a7f13d5c5c7b8356793b988b901a5b9b40cc0dc0", kill_on_drop: false }`
[INFO] [stdout] 9174f498fdbe60c6cecdc536a7f13d5c5c7b8356793b988b901a5b9b40cc0dc0