[INFO] fetching crate audio 0.2.0...
[INFO] checking audio-0.2.0 against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] extracting crate audio 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate audio 0.2.0
[INFO] finished tweaking crates.io crate audio 0.2.0
[INFO] tweaked toml for crates.io crate audio 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate audio 0.2.0 on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "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" "+82310651b93a594a3fd69015e1562186a080d94c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages to latest compatible versions
[INFO] [stderr]       Adding bittle v0.2.2 (available: v0.6.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bittle v0.2.2
[INFO] [stderr]   Downloaded audio-core v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c77f9e158f5be26513b286d71578dde25e5dfc60b37cb40ff7c925431c486f6a
[INFO] running `Command { std: "docker" "start" "-a" "c77f9e158f5be26513b286d71578dde25e5dfc60b37cb40ff7c925431c486f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c77f9e158f5be26513b286d71578dde25e5dfc60b37cb40ff7c925431c486f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c77f9e158f5be26513b286d71578dde25e5dfc60b37cb40ff7c925431c486f6a", kill_on_drop: false }`
[INFO] [stdout] c77f9e158f5be26513b286d71578dde25e5dfc60b37cb40ff7c925431c486f6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2027ee9a2e811f187ce07c2991ce9cf6fa83f9dad5ff9acec72be068e9b191b
[INFO] running `Command { std: "docker" "start" "-a" "a2027ee9a2e811f187ce07c2991ce9cf6fa83f9dad5ff9acec72be068e9b191b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking audio-core v0.2.0
[INFO] [stderr]     Checking bittle v0.2.2
[INFO] [stderr]     Checking audio v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]    --> src/channel/interleaved/macros.rs:133:30
[INFO] [stdout]     |
[INFO] [stdout] 133 |                     assert!(!self.ptr.as_ptr().is_null());
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/channel/interleaved.rs:374:1
[INFO] [stdout]     |
[INFO] [stdout] 374 | iterator!(struct Iter -> *const T, T, const, {/* no mut */});
[INFO] [stdout]     | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(useless_ptr_null_checks)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]    --> src/channel/interleaved/macros.rs:194:30
[INFO] [stdout]     |
[INFO] [stdout] 194 |                     assert!(!self.ptr.as_ptr().is_null());
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/channel/interleaved.rs:374:1
[INFO] [stdout]     |
[INFO] [stdout] 374 | iterator!(struct Iter -> *const T, T, const, {/* no mut */});
[INFO] [stdout]     | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]    --> src/channel/interleaved/macros.rs:133:30
[INFO] [stdout]     |
[INFO] [stdout] 133 |                     assert!(!self.ptr.as_ptr().is_null());
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/channel/interleaved.rs:375:1
[INFO] [stdout]     |
[INFO] [stdout] 375 | iterator!(struct IterMut -> *mut T, &'a mut T, mut, {&mut});
[INFO] [stdout]     | ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]    --> src/channel/interleaved/macros.rs:194:30
[INFO] [stdout]     |
[INFO] [stdout] 194 |                     assert!(!self.ptr.as_ptr().is_null());
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/channel/interleaved.rs:375:1
[INFO] [stdout]     |
[INFO] [stdout] 375 | iterator!(struct IterMut -> *mut T, &'a mut T, mut, {&mut});
[INFO] [stdout]     | ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/read.rs:183:17
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn iter(&self) -> Iter<B> {
[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] 183 |     pub fn iter(&self) -> Iter<'_, B> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/read.rs:197:21
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn iter_mut(&mut self) -> IterMut<B> {
[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] 197 |     pub fn iter_mut(&mut self) -> IterMut<'_, B> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/write.rs:189:17
[INFO] [stdout]     |
[INFO] [stdout] 189 |     pub fn iter(&self) -> Iter<B> {
[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] 189 |     pub fn iter(&self) -> Iter<'_, B> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/write.rs:203:21
[INFO] [stdout]     |
[INFO] [stdout] 203 |     pub fn iter_mut(&mut self) -> IterMut<B> {
[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] 203 |     pub fn iter_mut(&mut self) -> IterMut<'_, B> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/read_write.rs:277:17
[INFO] [stdout]     |
[INFO] [stdout] 277 |     pub fn iter(&self) -> Iter<B> {
[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] 277 |     pub fn iter(&self) -> Iter<'_, B> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/read_write.rs:293:21
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn iter_mut(&mut self) -> IterMut<B> {
[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] 293 |     pub fn iter_mut(&mut self) -> IterMut<'_, B> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] warning: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]    --> src/channel/interleaved/macros.rs:133:30
[INFO] [stdout]     |
[INFO] [stdout] 133 |                     assert!(!self.ptr.as_ptr().is_null());
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/channel/interleaved.rs:374:1
[INFO] [stdout]     |
[INFO] [stdout] 374 | iterator!(struct Iter -> *const T, T, const, {/* no mut */});
[INFO] [stdout]     | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(useless_ptr_null_checks)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]    --> src/channel/interleaved/macros.rs:194:30
[INFO] [stdout]     |
[INFO] [stdout] 194 |                     assert!(!self.ptr.as_ptr().is_null());
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/channel/interleaved.rs:374:1
[INFO] [stdout]     |
[INFO] [stdout] 374 | iterator!(struct Iter -> *const T, T, const, {/* no mut */});
[INFO] [stdout]     | ------------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]    --> src/channel/interleaved/macros.rs:133:30
[INFO] [stdout]     |
[INFO] [stdout] 133 |                     assert!(!self.ptr.as_ptr().is_null());
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/channel/interleaved.rs:375:1
[INFO] [stdout]     |
[INFO] [stdout] 375 | iterator!(struct IterMut -> *mut T, &'a mut T, mut, {&mut});
[INFO] [stdout]     | ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: returned pointer of `as_ptr` call is never null, so checking it for null will always return false
[INFO] [stdout]    --> src/channel/interleaved/macros.rs:194:30
[INFO] [stdout]     |
[INFO] [stdout] 194 |                     assert!(!self.ptr.as_ptr().is_null());
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/channel/interleaved.rs:375:1
[INFO] [stdout]     |
[INFO] [stdout] 375 | iterator!(struct IterMut -> *mut T, &'a mut T, mut, {&mut});
[INFO] [stdout]     | ----------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `iterator` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/read.rs:183:17
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn iter(&self) -> Iter<B> {
[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] 183 |     pub fn iter(&self) -> Iter<'_, B> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/read.rs:197:21
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn iter_mut(&mut self) -> IterMut<B> {
[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] 197 |     pub fn iter_mut(&mut self) -> IterMut<'_, B> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/write.rs:189:17
[INFO] [stdout]     |
[INFO] [stdout] 189 |     pub fn iter(&self) -> Iter<B> {
[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] 189 |     pub fn iter(&self) -> Iter<'_, B> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/write.rs:203:21
[INFO] [stdout]     |
[INFO] [stdout] 203 |     pub fn iter_mut(&mut self) -> IterMut<B> {
[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] 203 |     pub fn iter_mut(&mut self) -> IterMut<'_, B> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/read_write.rs:277:17
[INFO] [stdout]     |
[INFO] [stdout] 277 |     pub fn iter(&self) -> Iter<B> {
[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] 277 |     pub fn iter(&self) -> Iter<'_, B> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/io/read_write.rs:293:21
[INFO] [stdout]     |
[INFO] [stdout] 293 |     pub fn iter_mut(&mut self) -> IterMut<B> {
[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] 293 |     pub fn iter_mut(&mut self) -> IterMut<'_, B> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.49s
[INFO] running `Command { std: "docker" "inspect" "a2027ee9a2e811f187ce07c2991ce9cf6fa83f9dad5ff9acec72be068e9b191b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2027ee9a2e811f187ce07c2991ce9cf6fa83f9dad5ff9acec72be068e9b191b", kill_on_drop: false }`
[INFO] [stdout] a2027ee9a2e811f187ce07c2991ce9cf6fa83f9dad5ff9acec72be068e9b191b
