[INFO] cloning repository https://github.com/two-horned/sat-solver-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/two-horned/sat-solver-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwo-horned%2Fsat-solver-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwo-horned%2Fsat-solver-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0feb5e0684771f7593e594304dcb53729a146751
[INFO] checking two-horned/sat-solver-rs against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwo-horned%2Fsat-solver-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/two-horned/sat-solver-rs
[INFO] finished tweaking git repo https://github.com/two-horned/sat-solver-rs
[INFO] tweaked toml for git repo https://github.com/two-horned/sat-solver-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/two-horned/sat-solver-rs on toolchain 66388cc165a6c4ac98c074dc9f0281ff23528c55
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/two-horned/sat-solver-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfec29013508a0f342fc79fbe627ad034a411928c3e4ea17cf9791617422fdc0
[INFO] running `Command { std: "docker" "start" "-a" "dfec29013508a0f342fc79fbe627ad034a411928c3e4ea17cf9791617422fdc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfec29013508a0f342fc79fbe627ad034a411928c3e4ea17cf9791617422fdc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfec29013508a0f342fc79fbe627ad034a411928c3e4ea17cf9791617422fdc0", kill_on_drop: false }`
[INFO] [stdout] dfec29013508a0f342fc79fbe627ad034a411928c3e4ea17cf9791617422fdc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9c4d95d595112cd1efe42ed13e8c48f1b62334388d6d6a8f81305c1d9852c22
[INFO] running `Command { std: "docker" "start" "-a" "e9c4d95d595112cd1efe42ed13e8c48f1b62334388d6d6a8f81305c1d9852c22", kill_on_drop: false }`
[INFO] [stderr]     Checking sat-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/problem.rs:12:82
[INFO] [stdout]    |
[INFO] [stdout] 12 | ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl (FnMut((T, S)) -> R)>
[INFO] [stdout]    |                                                                                  ^                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 - ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl (FnMut((T, S)) -> R)>
[INFO] [stdout] 12 + ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl FnMut((T, S)) -> R >
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/problem.rs:12:82
[INFO] [stdout]    |
[INFO] [stdout] 12 | ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl (FnMut((T, S)) -> R)>
[INFO] [stdout]    |                                                                                  ^                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 - ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl (FnMut((T, S)) -> R)>
[INFO] [stdout] 12 + ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl FnMut((T, S)) -> R >
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/problem.rs:12:82
[INFO] [stdout]    |
[INFO] [stdout] 12 | ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl (FnMut((T, S)) -> R)>
[INFO] [stdout]    |                                                                                  ^                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 - ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl (FnMut((T, S)) -> R)>
[INFO] [stdout] 12 + ) -> Map<Zip<<I as IntoIterator>::IntoIter, <J as IntoIterator>::IntoIter>, impl FnMut((T, S)) -> R >
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iter_chain` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     iter_chain,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iter_chain` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     iter_chain,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `iter_chain` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     iter_chain,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `row_capacity`, `col_capacity`, `write`, and `unset` are never used
[INFO] [stdout]    --> src/bits/bit_matrix.rs:66:25
[INFO] [stdout]     |
[INFO] [stdout]  31 | impl<A: Allocator> BitMatrix<A> {
[INFO] [stdout]     | ------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  66 |     pub(crate) const fn row_capacity(&self) -> usize {
[INFO] [stdout]     |                         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     pub(crate) const fn col_capacity(&self) -> usize {
[INFO] [stdout]     |                         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub(crate) fn write(&mut self, row: usize, col: usize, value: bool) {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     impl_mut_row_col_access!(unset);
[INFO] [stdout]     |                              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_mut_row_col_access` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/bits/bit_tools.rs:172:33
[INFO] [stdout]     |
[INFO] [stdout] 171 |         impl<I: Iterator<Item = $uint>> $IterOnesIterator<I> {
[INFO] [stdout]     |         ---------------------------------------------------- associated function in this implementation
[INFO] [stdout] 172 |             pub(crate) const fn new(iterator: I) -> $IterOnesIterator<I> {
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 | uint_iterator_iter_ones!(usize, IterOnesIteratorUsize);
[INFO] [stdout]     | ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `uint_iterator_iter_ones` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IterOnesIteratorUsize` is never constructed
[INFO] [stdout]    --> src/bits/bit_tools.rs:201:33
[INFO] [stdout]     |
[INFO] [stdout] 201 | uint_iterator_iter_ones!(usize, IterOnesIteratorUsize);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `uint_iterator_iter_ones` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_in` and `variables` are never used
[INFO] [stdout]   --> src/problem.rs:31:19
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<A: Allocator + Copy> Problem<A> {
[INFO] [stdout]    | ------------------------------------ associated items in this implementation
[INFO] [stdout] 31 |     pub(crate) fn new_in(a: A) -> Self {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub(crate) const fn variables(&self) -> usize {
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bits/bit_tools.rs:203:50
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub(crate) const fn iter_ones_slice_usize(slice: &[usize]) -> IterOnesSliceUsize {
[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] 203 | pub(crate) const fn iter_ones_slice_usize(slice: &[usize]) -> IterOnesSliceUsize<'_> {
[INFO] [stdout]     |                                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `row_capacity`, `col_capacity`, `write`, and `unset` are never used
[INFO] [stdout]    --> src/bits/bit_matrix.rs:66:25
[INFO] [stdout]     |
[INFO] [stdout]  31 | impl<A: Allocator> BitMatrix<A> {
[INFO] [stdout]     | ------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  66 |     pub(crate) const fn row_capacity(&self) -> usize {
[INFO] [stdout]     |                         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     pub(crate) const fn col_capacity(&self) -> usize {
[INFO] [stdout]     |                         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub(crate) fn write(&mut self, row: usize, col: usize, value: bool) {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     impl_mut_row_col_access!(unset);
[INFO] [stdout]     |                              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_mut_row_col_access` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/bits/bit_tools.rs:172:33
[INFO] [stdout]     |
[INFO] [stdout] 171 |         impl<I: Iterator<Item = $uint>> $IterOnesIterator<I> {
[INFO] [stdout]     |         ---------------------------------------------------- associated function in this implementation
[INFO] [stdout] 172 |             pub(crate) const fn new(iterator: I) -> $IterOnesIterator<I> {
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 | uint_iterator_iter_ones!(usize, IterOnesIteratorUsize);
[INFO] [stdout]     | ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `uint_iterator_iter_ones` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IterOnesIteratorUsize` is never constructed
[INFO] [stdout]    --> src/bits/bit_tools.rs:201:33
[INFO] [stdout]     |
[INFO] [stdout] 201 | uint_iterator_iter_ones!(usize, IterOnesIteratorUsize);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `uint_iterator_iter_ones` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_in` and `variables` are never used
[INFO] [stdout]   --> src/problem.rs:31:19
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<A: Allocator + Copy> Problem<A> {
[INFO] [stdout]    | ------------------------------------ associated items in this implementation
[INFO] [stdout] 31 |     pub(crate) fn new_in(a: A) -> Self {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub(crate) const fn variables(&self) -> usize {
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bits/bit_tools.rs:203:50
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub(crate) const fn iter_ones_slice_usize(slice: &[usize]) -> IterOnesSliceUsize {
[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] 203 | pub(crate) const fn iter_ones_slice_usize(slice: &[usize]) -> IterOnesSliceUsize<'_> {
[INFO] [stdout]     |                                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `row_capacity`, `col_capacity`, `write`, and `unset` are never used
[INFO] [stdout]    --> src/bits/bit_matrix.rs:66:25
[INFO] [stdout]     |
[INFO] [stdout]  31 | impl<A: Allocator> BitMatrix<A> {
[INFO] [stdout]     | ------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  66 |     pub(crate) const fn row_capacity(&self) -> usize {
[INFO] [stdout]     |                         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     pub(crate) const fn col_capacity(&self) -> usize {
[INFO] [stdout]     |                         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 109 |     pub(crate) fn write(&mut self, row: usize, col: usize, value: bool) {
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 119 |     impl_mut_row_col_access!(unset);
[INFO] [stdout]     |                              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_mut_row_col_access` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/bits/bit_tools.rs:172:33
[INFO] [stdout]     |
[INFO] [stdout] 171 |         impl<I: Iterator<Item = $uint>> $IterOnesIterator<I> {
[INFO] [stdout]     |         ---------------------------------------------------- associated function in this implementation
[INFO] [stdout] 172 |             pub(crate) const fn new(iterator: I) -> $IterOnesIterator<I> {
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 | uint_iterator_iter_ones!(usize, IterOnesIteratorUsize);
[INFO] [stdout]     | ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `uint_iterator_iter_ones` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IterOnesIteratorUsize` is never constructed
[INFO] [stdout]    --> src/bits/bit_tools.rs:201:33
[INFO] [stdout]     |
[INFO] [stdout] 201 | uint_iterator_iter_ones!(usize, IterOnesIteratorUsize);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `uint_iterator_iter_ones` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new_in` and `variables` are never used
[INFO] [stdout]   --> src/problem.rs:31:19
[INFO] [stdout]    |
[INFO] [stdout] 30 | impl<A: Allocator + Copy> Problem<A> {
[INFO] [stdout]    | ------------------------------------ associated items in this implementation
[INFO] [stdout] 31 |     pub(crate) fn new_in(a: A) -> Self {
[INFO] [stdout]    |                   ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub(crate) const fn variables(&self) -> usize {
[INFO] [stdout]    |                         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bits/bit_tools.rs:203:50
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub(crate) const fn iter_ones_slice_usize(slice: &[usize]) -> IterOnesSliceUsize {
[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] 203 | pub(crate) const fn iter_ones_slice_usize(slice: &[usize]) -> IterOnesSliceUsize<'_> {
[INFO] [stdout]     |                                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "e9c4d95d595112cd1efe42ed13e8c48f1b62334388d6d6a8f81305c1d9852c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9c4d95d595112cd1efe42ed13e8c48f1b62334388d6d6a8f81305c1d9852c22", kill_on_drop: false }`
[INFO] [stdout] e9c4d95d595112cd1efe42ed13e8c48f1b62334388d6d6a8f81305c1d9852c22
