[INFO] fetching crate microkelvin 0.17.0...
[INFO] testing microkelvin-0.17.0 against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] extracting crate microkelvin 0.17.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate microkelvin 0.17.0
[INFO] finished tweaking crates.io crate microkelvin 0.17.0
[INFO] tweaked toml for crates.io crate microkelvin 0.17.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate microkelvin 0.17.0 on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 883a288495715cf64ac907f86921b9a2a40b96722f5c2887e7e5e3119dc1c7e8
[INFO] running `Command { std: "docker" "start" "-a" "883a288495715cf64ac907f86921b9a2a40b96722f5c2887e7e5e3119dc1c7e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "883a288495715cf64ac907f86921b9a2a40b96722f5c2887e7e5e3119dc1c7e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "883a288495715cf64ac907f86921b9a2a40b96722f5c2887e7e5e3119dc1c7e8", kill_on_drop: false }`
[INFO] [stdout] 883a288495715cf64ac907f86921b9a2a40b96722f5c2887e7e5e3119dc1c7e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1046fbdafd8c475eb46c74f697871ab6eb92b229fb42e88bf610cc4d44a431f8
[INFO] running `Command { std: "docker" "start" "-a" "1046fbdafd8c475eb46c74f697871ab6eb92b229fb42e88bf610cc4d44a431f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling ranno v0.1.0
[INFO] [stderr]    Compiling microkelvin v0.17.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/branch.rs:85:19
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn levels(&self) -> &[Level<C, A>] {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^^^^
[INFO] [stdout]    |                   |         | |
[INFO] [stdout]    |                   |         | the same lifetime is hidden here
[INFO] [stdout]    |                   |         the same lifetime is elided here
[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] 85 |     pub fn levels(&self) -> &[Level<'_, C, A>] {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/branch.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn top(&self) -> &Level<C, A> {
[INFO] [stdout]    |            ^^^^^     ^^^^^^^^^^^^
[INFO] [stdout]    |            |         ||
[INFO] [stdout]    |            |         |the same lifetime is hidden here
[INFO] [stdout]    |            |         the same lifetime is elided here
[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] 89 |     fn top(&self) -> &Level<'_, C, A> {
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/branch.rs:223:19
[INFO] [stdout]     |
[INFO] [stdout] 223 |     pub fn levels(&self) -> &[Level<C, A>] {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^
[INFO] [stdout]     |                   |         | |
[INFO] [stdout]     |                   |         | the same lifetime is hidden here
[INFO] [stdout]     |                   |         the same lifetime is elided here
[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] 223 |     pub fn levels(&self) -> &[Level<'_, C, A>] {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/branch_mut.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn top(&self) -> &LevelMut<C, A> {
[INFO] [stdout]     |            ^^^^^     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |         ||
[INFO] [stdout]     |            |         |the same lifetime is hidden here
[INFO] [stdout]     |            |         the same lifetime is elided here
[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] 113 |     fn top(&self) -> &LevelMut<'_, C, A> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/compound.rs:53:14
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn child(&self, index: usize) -> Child<Self, A>;
[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] 53 |     fn child(&self, index: usize) -> Child<'_, Self, A>;
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/compound.rs:56:18
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn child_mut(&mut self, index: usize) -> ChildMut<Self, A>;
[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] 56 |     fn child_mut(&mut self, index: usize) -> ChildMut<'_, Self, A>;
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/walk.rs:91:14
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn first(&self) -> Option<Branch<Self, A>>;
[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] 91 |     fn first(&self) -> Option<Branch<'_, Self, A>>;
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/walk.rs:94:18
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn first_mut(&mut self) -> Option<BranchMut<Self, A>>
[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] 94 |     fn first_mut(&mut self) -> Option<BranchMut<'_, Self, A>>
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/walk.rs:104:14
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn first(&self) -> Option<Branch<Self, A>> {
[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] 104 |     fn first(&self) -> Option<Branch<'_, Self, A>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/walk.rs:108:18
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn first_mut(&mut self) -> Option<BranchMut<Self, A>>
[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] 108 |     fn first_mut(&mut self) -> Option<BranchMut<'_, Self, A>>
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "1046fbdafd8c475eb46c74f697871ab6eb92b229fb42e88bf610cc4d44a431f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1046fbdafd8c475eb46c74f697871ab6eb92b229fb42e88bf610cc4d44a431f8", kill_on_drop: false }`
[INFO] [stdout] 1046fbdafd8c475eb46c74f697871ab6eb92b229fb42e88bf610cc4d44a431f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ad0b509413a694d4ab62695f9d7e89c77ceaf046d410dbb86fd7b684cd593f9
[INFO] running `Command { std: "docker" "start" "-a" "6ad0b509413a694d4ab62695f9d7e89c77ceaf046d410dbb86fd7b684cd593f9", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/branch.rs:85:19
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn levels(&self) -> &[Level<C, A>] {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^^^^
[INFO] [stdout]    |                   |         | |
[INFO] [stdout]    |                   |         | the same lifetime is hidden here
[INFO] [stdout]    |                   |         the same lifetime is elided here
[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] 85 |     pub fn levels(&self) -> &[Level<'_, C, A>] {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/branch.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn top(&self) -> &Level<C, A> {
[INFO] [stdout]    |            ^^^^^     ^^^^^^^^^^^^
[INFO] [stdout]    |            |         ||
[INFO] [stdout]    |            |         |the same lifetime is hidden here
[INFO] [stdout]    |            |         the same lifetime is elided here
[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] 89 |     fn top(&self) -> &Level<'_, C, A> {
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/branch.rs:223:19
[INFO] [stdout]     |
[INFO] [stdout] 223 |     pub fn levels(&self) -> &[Level<C, A>] {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^
[INFO] [stdout]     |                   |         | |
[INFO] [stdout]     |                   |         | the same lifetime is hidden here
[INFO] [stdout]     |                   |         the same lifetime is elided here
[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] 223 |     pub fn levels(&self) -> &[Level<'_, C, A>] {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/branch_mut.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn top(&self) -> &LevelMut<C, A> {
[INFO] [stdout]     |            ^^^^^     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |         ||
[INFO] [stdout]     |            |         |the same lifetime is hidden here
[INFO] [stdout]     |            |         the same lifetime is elided here
[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] 113 |     fn top(&self) -> &LevelMut<'_, C, A> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/compound.rs:53:14
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn child(&self, index: usize) -> Child<Self, A>;
[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] 53 |     fn child(&self, index: usize) -> Child<'_, Self, A>;
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/compound.rs:56:18
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn child_mut(&mut self, index: usize) -> ChildMut<Self, A>;
[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] 56 |     fn child_mut(&mut self, index: usize) -> ChildMut<'_, Self, A>;
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/walk.rs:91:14
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn first(&self) -> Option<Branch<Self, A>>;
[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] 91 |     fn first(&self) -> Option<Branch<'_, Self, A>>;
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/walk.rs:94:18
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn first_mut(&mut self) -> Option<BranchMut<Self, A>>
[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] 94 |     fn first_mut(&mut self) -> Option<BranchMut<'_, Self, A>>
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/walk.rs:104:14
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn first(&self) -> Option<Branch<Self, A>> {
[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] 104 |     fn first(&self) -> Option<Branch<'_, Self, A>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/walk.rs:108:18
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn first_mut(&mut self) -> Option<BranchMut<Self, A>>
[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] 108 |     fn first_mut(&mut self) -> Option<BranchMut<'_, Self, A>>
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling microkelvin v0.17.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> tests/linked_list.rs:65:14
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn child(&self, index: usize) -> Child<Self, A> {
[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] 65 |     fn child(&self, index: usize) -> Child<'_, Self, A> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> tests/linked_list.rs:74:18
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn child_mut(&mut self, index: usize) -> ChildMut<Self, A> {
[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] 74 |     fn child_mut(&mut self, index: usize) -> ChildMut<'_, Self, A> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/branch.rs:85:19
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn levels(&self) -> &[Level<C, A>] {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^^^^^^^^^
[INFO] [stdout]    |                   |         | |
[INFO] [stdout]    |                   |         | the same lifetime is hidden here
[INFO] [stdout]    |                   |         the same lifetime is elided here
[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] 85 |     pub fn levels(&self) -> &[Level<'_, C, A>] {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/branch.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn top(&self) -> &Level<C, A> {
[INFO] [stdout]    |            ^^^^^     ^^^^^^^^^^^^
[INFO] [stdout]    |            |         ||
[INFO] [stdout]    |            |         |the same lifetime is hidden here
[INFO] [stdout]    |            |         the same lifetime is elided here
[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] 89 |     fn top(&self) -> &Level<'_, C, A> {
[INFO] [stdout]    |                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/branch.rs:223:19
[INFO] [stdout]     |
[INFO] [stdout] 223 |     pub fn levels(&self) -> &[Level<C, A>] {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^
[INFO] [stdout]     |                   |         | |
[INFO] [stdout]     |                   |         | the same lifetime is hidden here
[INFO] [stdout]     |                   |         the same lifetime is elided here
[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] 223 |     pub fn levels(&self) -> &[Level<'_, C, A>] {
[INFO] [stdout]     |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/branch_mut.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn top(&self) -> &LevelMut<C, A> {
[INFO] [stdout]     |            ^^^^^     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |         ||
[INFO] [stdout]     |            |         |the same lifetime is hidden here
[INFO] [stdout]     |            |         the same lifetime is elided here
[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] 113 |     fn top(&self) -> &LevelMut<'_, C, A> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/compound.rs:53:14
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn child(&self, index: usize) -> Child<Self, A>;
[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] 53 |     fn child(&self, index: usize) -> Child<'_, Self, A>;
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/compound.rs:56:18
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn child_mut(&mut self, index: usize) -> ChildMut<Self, A>;
[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] 56 |     fn child_mut(&mut self, index: usize) -> ChildMut<'_, Self, A>;
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/walk.rs:91:14
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn first(&self) -> Option<Branch<Self, A>>;
[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] 91 |     fn first(&self) -> Option<Branch<'_, Self, A>>;
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/walk.rs:94:18
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn first_mut(&mut self) -> Option<BranchMut<Self, A>>
[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] 94 |     fn first_mut(&mut self) -> Option<BranchMut<'_, Self, A>>
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/walk.rs:104:14
[INFO] [stdout]     |
[INFO] [stdout] 104 |     fn first(&self) -> Option<Branch<Self, A>> {
[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] 104 |     fn first(&self) -> Option<Branch<'_, Self, A>> {
[INFO] [stdout]     |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/walk.rs:108:18
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn first_mut(&mut self) -> Option<BranchMut<Self, A>>
[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] 108 |     fn first_mut(&mut self) -> Option<BranchMut<'_, Self, A>>
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "6ad0b509413a694d4ab62695f9d7e89c77ceaf046d410dbb86fd7b684cd593f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ad0b509413a694d4ab62695f9d7e89c77ceaf046d410dbb86fd7b684cd593f9", kill_on_drop: false }`
[INFO] [stdout] 6ad0b509413a694d4ab62695f9d7e89c77ceaf046d410dbb86fd7b684cd593f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ef073c97d95238ec55684f129dbd6b7bf77dde3ee1da8eba3baffd8f40d6e8f6
[INFO] running `Command { std: "docker" "start" "-a" "ef073c97d95238ec55684f129dbd6b7bf77dde3ee1da8eba3baffd8f40d6e8f6", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/branch.rs:85:19
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn levels(&self) -> &[Level<C, A>] {
[INFO] [stderr]    |                   ^^^^^     ^^^^^^^^^^^^^^
[INFO] [stderr]    |                   |         | |
[INFO] [stderr]    |                   |         | the same lifetime is hidden here
[INFO] [stderr]    |                   |         the same lifetime is elided here
[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] 85 |     pub fn levels(&self) -> &[Level<'_, C, A>] {
[INFO] [stderr]    |                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/branch.rs:89:12
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn top(&self) -> &Level<C, A> {
[INFO] [stderr]    |            ^^^^^     ^^^^^^^^^^^^
[INFO] [stderr]    |            |         ||
[INFO] [stderr]    |            |         |the same lifetime is hidden here
[INFO] [stderr]    |            |         the same lifetime is elided here
[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] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn top(&self) -> &Level<'_, C, A> {
[INFO] [stderr]    |                             +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/branch.rs:223:19
[INFO] [stderr]     |
[INFO] [stderr] 223 |     pub fn levels(&self) -> &[Level<C, A>] {
[INFO] [stderr]     |                   ^^^^^     ^^^^^^^^^^^^^^
[INFO] [stderr]     |                   |         | |
[INFO] [stderr]     |                   |         | the same lifetime is hidden here
[INFO] [stderr]     |                   |         the same lifetime is elided here
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 223 |     pub fn levels(&self) -> &[Level<'_, C, A>] {
[INFO] [stderr]     |                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/branch_mut.rs:113:12
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn top(&self) -> &LevelMut<C, A> {
[INFO] [stderr]     |            ^^^^^     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |            |         ||
[INFO] [stderr]     |            |         |the same lifetime is hidden here
[INFO] [stderr]     |            |         the same lifetime is elided here
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn top(&self) -> &LevelMut<'_, C, A> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/compound.rs:53:14
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn child(&self, index: usize) -> Child<Self, A>;
[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] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn child(&self, index: usize) -> Child<'_, Self, A>;
[INFO] [stderr]    |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/compound.rs:56:18
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn child_mut(&mut self, index: usize) -> ChildMut<Self, A>;
[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] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn child_mut(&mut self, index: usize) -> ChildMut<'_, Self, A>;
[INFO] [stderr]    |                                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/walk.rs:91:14
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn first(&self) -> Option<Branch<Self, A>>;
[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] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn first(&self) -> Option<Branch<'_, Self, A>>;
[INFO] [stderr]    |                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/walk.rs:94:18
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn first_mut(&mut self) -> Option<BranchMut<Self, A>>
[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] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn first_mut(&mut self) -> Option<BranchMut<'_, Self, A>>
[INFO] [stderr]    |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/walk.rs:104:14
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn first(&self) -> Option<Branch<Self, A>> {
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn first(&self) -> Option<Branch<'_, Self, A>> {
[INFO] [stderr]     |                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/walk.rs:108:18
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn first_mut(&mut self) -> Option<BranchMut<Self, A>>
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 108 |     fn first_mut(&mut self) -> Option<BranchMut<'_, Self, A>>
[INFO] [stderr]     |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: `microkelvin` (lib) generated 10 warnings (run `cargo fix --lib -p microkelvin` to apply 10 suggestions)
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> tests/linked_list.rs:65:14
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn child(&self, index: usize) -> Child<Self, A> {
[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] 65 |     fn child(&self, index: usize) -> Child<'_, Self, A> {
[INFO] [stderr]    |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> tests/linked_list.rs:74:18
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn child_mut(&mut self, index: usize) -> ChildMut<Self, A> {
[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] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn child_mut(&mut self, index: usize) -> ChildMut<'_, Self, A> {
[INFO] [stderr]    |                                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: `microkelvin` (test "linked_list") generated 2 warnings (run `cargo fix --test "linked_list" -p microkelvin` to apply 2 suggestions)
[INFO] [stderr] warning: `microkelvin` (lib test) generated 10 warnings (10 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/microkelvin-94d1eb14e3718f4a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/linked_list.rs (/opt/rustwide/target/debug/deps/linked_list-7cee5b78d79774d5)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test deref_mapped_mutable_branch ... ok
[INFO] [stderr]    Doc-tests microkelvin
[INFO] [stdout] test iterate_map ... ok
[INFO] [stdout] test iterate_map_mutable ... ok
[INFO] [stdout] test push_cardinality ... ok
[INFO] [stdout] test push ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ef073c97d95238ec55684f129dbd6b7bf77dde3ee1da8eba3baffd8f40d6e8f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef073c97d95238ec55684f129dbd6b7bf77dde3ee1da8eba3baffd8f40d6e8f6", kill_on_drop: false }`
[INFO] [stdout] ef073c97d95238ec55684f129dbd6b7bf77dde3ee1da8eba3baffd8f40d6e8f6
