[INFO] fetching crate safe_index 0.10.0...
[INFO] checking safe_index-0.10.0 against try#4797991aa2efb6d658150f10425b3f3b5d10eceb for pr-143193
[INFO] extracting crate safe_index 0.10.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate safe_index 0.10.0
[INFO] finished tweaking crates.io crate safe_index 0.10.0
[INFO] tweaked toml for crates.io crate safe_index 0.10.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate safe_index 0.10.0 on toolchain 4797991aa2efb6d658150f10425b3f3b5d10eceb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "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" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca1bcb0c67de62b1ec098fdc4786b5932af353ac1236157f268d52cbd2870156
[INFO] running `Command { std: "docker" "start" "-a" "ca1bcb0c67de62b1ec098fdc4786b5932af353ac1236157f268d52cbd2870156", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca1bcb0c67de62b1ec098fdc4786b5932af353ac1236157f268d52cbd2870156", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca1bcb0c67de62b1ec098fdc4786b5932af353ac1236157f268d52cbd2870156", kill_on_drop: false }`
[INFO] [stdout] ca1bcb0c67de62b1ec098fdc4786b5932af353ac1236157f268d52cbd2870156
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c071866a8745c9f29c7d9ae93221c3a95c6ba20d195eab67b12d285643e15961
[INFO] running `Command { std: "docker" "start" "-a" "c071866a8745c9f29c7d9ae93221c3a95c6ba20d195eab67b12d285643e15961", kill_on_drop: false }`
[INFO] [stderr]     Checking safe_index v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/map.rs:160:25
[INFO] [stdout]     |
[INFO] [stdout] 160 |               pub fn iter(& self) -> core::slice::Iter<T> {
[INFO] [stdout]     |                           ^^^^^^     -------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/examples/mod.rs:75:5
[INFO] [stdout]     |
[INFO] [stdout] 75  | /     new! {
[INFO] [stdout] 76  | |         /// Index of a variable.
[INFO] [stdout] 77  | |         VarIndex,
[INFO] [stdout] 78  | |         /// Set of variable indexes.
[INFO] [stdout] ...   |
[INFO] [stdout] 83  | |         map: VarMap,
[INFO] [stdout] 84  | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `$crate::map_codegen` which comes from the expansion of the macro `new` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 160 |             pub fn iter(& self) -> core::slice::Iter<'_, T> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/map.rs:198:29
[INFO] [stdout]     |
[INFO] [stdout] 198 |               pub fn iter_mut(&mut self) -> core::slice::IterMut<T> {
[INFO] [stdout]     |                               ^^^^^^^^^     ----------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/examples/mod.rs:75:5
[INFO] [stdout]     |
[INFO] [stdout] 75  | /     new! {
[INFO] [stdout] 76  | |         /// Index of a variable.
[INFO] [stdout] 77  | |         VarIndex,
[INFO] [stdout] 78  | |         /// Set of variable indexes.
[INFO] [stdout] ...   |
[INFO] [stdout] 83  | |         map: VarMap,
[INFO] [stdout] 84  | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::map_codegen` which comes from the expansion of the macro `new` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |             pub fn iter_mut(&mut self) -> core::slice::IterMut<'_, T> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/map.rs:160:25
[INFO] [stdout]     |
[INFO] [stdout] 160 |               pub fn iter(& self) -> core::slice::Iter<T> {
[INFO] [stdout]     |                           ^^^^^^     -------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/examples/clients.rs:64:5
[INFO] [stdout]     |
[INFO] [stdout] 64  | /     new! {
[INFO] [stdout] 65  | |         /// Indices of clients.
[INFO] [stdout] 66  | |         Client,
[INFO] [stdout] 67  | |         /// Map from clients to something.
[INFO] [stdout] ...   |
[INFO] [stdout] 70  | |         btree set: ClientSet,
[INFO] [stdout] 71  | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::map_codegen` which comes from the expansion of the macro `new` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 160 |             pub fn iter(& self) -> core::slice::Iter<'_, T> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/map.rs:198:29
[INFO] [stdout]     |
[INFO] [stdout] 198 |               pub fn iter_mut(&mut self) -> core::slice::IterMut<T> {
[INFO] [stdout]     |                               ^^^^^^^^^     ----------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/examples/clients.rs:64:5
[INFO] [stdout]     |
[INFO] [stdout] 64  | /     new! {
[INFO] [stdout] 65  | |         /// Indices of clients.
[INFO] [stdout] 66  | |         Client,
[INFO] [stdout] 67  | |         /// Map from clients to something.
[INFO] [stdout] ...   |
[INFO] [stdout] 70  | |         btree set: ClientSet,
[INFO] [stdout] 71  | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::map_codegen` which comes from the expansion of the macro `new` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |             pub fn iter_mut(&mut self) -> core::slice::IterMut<'_, T> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/map.rs:160:25
[INFO] [stdout]     |
[INFO] [stdout] 160 |               pub fn iter(& self) -> core::slice::Iter<T> {
[INFO] [stdout]     |                           ^^^^^^     -------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/examples/clients.rs:73:5
[INFO] [stdout]     |
[INFO] [stdout] 73  | /     new! {
[INFO] [stdout] 74  | |         /// Indices of files.
[INFO] [stdout] 75  | |         File,
[INFO] [stdout] 76  | |         /// Map from files to something.
[INFO] [stdout] ...   |
[INFO] [stdout] 79  | |         btree set: FileSet,
[INFO] [stdout] 80  | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::map_codegen` which comes from the expansion of the macro `new` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 160 |             pub fn iter(& self) -> core::slice::Iter<'_, T> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/map.rs:198:29
[INFO] [stdout]     |
[INFO] [stdout] 198 |               pub fn iter_mut(&mut self) -> core::slice::IterMut<T> {
[INFO] [stdout]     |                               ^^^^^^^^^     ----------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/examples/clients.rs:73:5
[INFO] [stdout]     |
[INFO] [stdout] 73  | /     new! {
[INFO] [stdout] 74  | |         /// Indices of files.
[INFO] [stdout] 75  | |         File,
[INFO] [stdout] 76  | |         /// Map from files to something.
[INFO] [stdout] ...   |
[INFO] [stdout] 79  | |         btree set: FileSet,
[INFO] [stdout] 80  | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::map_codegen` which comes from the expansion of the macro `new` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |             pub fn iter_mut(&mut self) -> core::slice::IterMut<'_, T> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/map.rs:160:25
[INFO] [stdout]     |
[INFO] [stdout] 160 |               pub fn iter(& self) -> core::slice::Iter<T> {
[INFO] [stdout]     |                           ^^^^^^     -------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/examples/mod.rs:75:5
[INFO] [stdout]     |
[INFO] [stdout] 75  | /     new! {
[INFO] [stdout] 76  | |         /// Index of a variable.
[INFO] [stdout] 77  | |         VarIndex,
[INFO] [stdout] 78  | |         /// Set of variable indexes.
[INFO] [stdout] ...   |
[INFO] [stdout] 83  | |         map: VarMap,
[INFO] [stdout] 84  | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `$crate::map_codegen` which comes from the expansion of the macro `new` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 160 |             pub fn iter(& self) -> core::slice::Iter<'_, T> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/map.rs:198:29
[INFO] [stdout]     |
[INFO] [stdout] 198 |               pub fn iter_mut(&mut self) -> core::slice::IterMut<T> {
[INFO] [stdout]     |                               ^^^^^^^^^     ----------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/examples/mod.rs:75:5
[INFO] [stdout]     |
[INFO] [stdout] 75  | /     new! {
[INFO] [stdout] 76  | |         /// Index of a variable.
[INFO] [stdout] 77  | |         VarIndex,
[INFO] [stdout] 78  | |         /// Set of variable indexes.
[INFO] [stdout] ...   |
[INFO] [stdout] 83  | |         map: VarMap,
[INFO] [stdout] 84  | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::map_codegen` which comes from the expansion of the macro `new` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |             pub fn iter_mut(&mut self) -> core::slice::IterMut<'_, T> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/map.rs:160:25
[INFO] [stdout]     |
[INFO] [stdout] 160 |               pub fn iter(& self) -> core::slice::Iter<T> {
[INFO] [stdout]     |                           ^^^^^^     -------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/examples/clients.rs:64:5
[INFO] [stdout]     |
[INFO] [stdout] 64  | /     new! {
[INFO] [stdout] 65  | |         /// Indices of clients.
[INFO] [stdout] 66  | |         Client,
[INFO] [stdout] 67  | |         /// Map from clients to something.
[INFO] [stdout] ...   |
[INFO] [stdout] 70  | |         btree set: ClientSet,
[INFO] [stdout] 71  | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::map_codegen` which comes from the expansion of the macro `new` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 160 |             pub fn iter(& self) -> core::slice::Iter<'_, T> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/map.rs:198:29
[INFO] [stdout]     |
[INFO] [stdout] 198 |               pub fn iter_mut(&mut self) -> core::slice::IterMut<T> {
[INFO] [stdout]     |                               ^^^^^^^^^     ----------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/examples/clients.rs:64:5
[INFO] [stdout]     |
[INFO] [stdout] 64  | /     new! {
[INFO] [stdout] 65  | |         /// Indices of clients.
[INFO] [stdout] 66  | |         Client,
[INFO] [stdout] 67  | |         /// Map from clients to something.
[INFO] [stdout] ...   |
[INFO] [stdout] 70  | |         btree set: ClientSet,
[INFO] [stdout] 71  | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::map_codegen` which comes from the expansion of the macro `new` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |             pub fn iter_mut(&mut self) -> core::slice::IterMut<'_, T> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/map.rs:160:25
[INFO] [stdout]     |
[INFO] [stdout] 160 |               pub fn iter(& self) -> core::slice::Iter<T> {
[INFO] [stdout]     |                           ^^^^^^     -------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/examples/clients.rs:73:5
[INFO] [stdout]     |
[INFO] [stdout] 73  | /     new! {
[INFO] [stdout] 74  | |         /// Indices of files.
[INFO] [stdout] 75  | |         File,
[INFO] [stdout] 76  | |         /// Map from files to something.
[INFO] [stdout] ...   |
[INFO] [stdout] 79  | |         btree set: FileSet,
[INFO] [stdout] 80  | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::map_codegen` which comes from the expansion of the macro `new` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 160 |             pub fn iter(& self) -> core::slice::Iter<'_, T> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/map.rs:198:29
[INFO] [stdout]     |
[INFO] [stdout] 198 |               pub fn iter_mut(&mut self) -> core::slice::IterMut<T> {
[INFO] [stdout]     |                               ^^^^^^^^^     ----------------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/examples/clients.rs:73:5
[INFO] [stdout]     |
[INFO] [stdout] 73  | /     new! {
[INFO] [stdout] 74  | |         /// Indices of files.
[INFO] [stdout] 75  | |         File,
[INFO] [stdout] 76  | |         /// Map from files to something.
[INFO] [stdout] ...   |
[INFO] [stdout] 79  | |         btree set: FileSet,
[INFO] [stdout] 80  | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::map_codegen` which comes from the expansion of the macro `new` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |             pub fn iter_mut(&mut self) -> core::slice::IterMut<'_, T> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "c071866a8745c9f29c7d9ae93221c3a95c6ba20d195eab67b12d285643e15961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c071866a8745c9f29c7d9ae93221c3a95c6ba20d195eab67b12d285643e15961", kill_on_drop: false }`
[INFO] [stdout] c071866a8745c9f29c7d9ae93221c3a95c6ba20d195eab67b12d285643e15961