[INFO] crate coalescing_buffer 0.0.3 is already in cache
[INFO] extracting crate coalescing_buffer 0.0.3 into work/ex/clippy-test-run/sources/stable/reg/coalescing_buffer/0.0.3
[INFO] extracting crate coalescing_buffer 0.0.3 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/coalescing_buffer/0.0.3
[INFO] validating manifest of coalescing_buffer-0.0.3 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of coalescing_buffer-0.0.3 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing coalescing_buffer-0.0.3
[INFO] finished frobbing coalescing_buffer-0.0.3
[INFO] frobbed toml for coalescing_buffer-0.0.3 written to work/ex/clippy-test-run/sources/stable/reg/coalescing_buffer/0.0.3/Cargo.toml
[INFO] started frobbing coalescing_buffer-0.0.3
[INFO] finished frobbing coalescing_buffer-0.0.3
[INFO] frobbed toml for coalescing_buffer-0.0.3 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/coalescing_buffer/0.0.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting coalescing_buffer-0.0.3 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/coalescing_buffer/0.0.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6818fa09a13896dcf2955611b203d8fef6165e0ad22ef4357a22f37337e9340a
[INFO] running `"docker" "start" "-a" "6818fa09a13896dcf2955611b203d8fef6165e0ad22ef4357a22f37337e9340a"`
[INFO] [stderr]     Checking coalescing_buffer v0.0.3 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/ring/spsc_coalescing_ring_buffer.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             keys: keys,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `keys`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/ring/spsc_coalescing_ring_buffer.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |             values: values,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `values`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:352:17
[INFO] [stderr]     |
[INFO] [stderr] 352 |                 instrument_id: instrument_id,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `instrument_id`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/ring/spsc_coalescing_ring_buffer.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             keys: keys,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `keys`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/ring/spsc_coalescing_ring_buffer.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |             values: values,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: replace it with: `values`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:352:17
[INFO] [stderr]     |
[INFO] [stderr] 352 |                 instrument_id: instrument_id,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `instrument_id`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/ring/spsc_coalescing_ring_buffer.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     return v;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |         return self.capacity;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.capacity`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |         return self.rejection_count.load(Ordering::SeqCst);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.rejection_count.load(Ordering::SeqCst)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         return self.next_write.load(Ordering::SeqCst);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.next_write.load(Ordering::SeqCst)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |         return self.first_write.load(Ordering::SeqCst);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.first_write.load(Ordering::SeqCst)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |         return self.first_write.load(Ordering::SeqCst) == self.next_write.load(Ordering::SeqCst);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.first_write.load(Ordering::SeqCst) == self.next_write.load(Ordering::SeqCst)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:126:9
[INFO] [stderr]     |
[INFO] [stderr] 126 |         return self.size() == self.capacity;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.size() == self.capacity`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |         return self.add(key_type, val_ptr);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.add(key_type, val_ptr)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:152:9
[INFO] [stderr]     |
[INFO] [stderr] 152 |         return self.add(KeyHolder::NonCollapsible, Box::into_raw(Box::new(value)));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.add(KeyHolder::NonCollapsible, Box::into_raw(Box::new(value)))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:162:9
[INFO] [stderr]     |
[INFO] [stderr] 162 |         return true;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |         return self.fill(total_to_poll);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.fill(total_to_poll)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:201:9
[INFO] [stderr]     |
[INFO] [stderr] 201 |         return self.fill(claim_up_to);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.fill(claim_up_to)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:221:9
[INFO] [stderr]     |
[INFO] [stderr] 221 |         return bucket;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `bucket`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:225:9
[INFO] [stderr]     |
[INFO] [stderr] 225 |         return value & self.mask;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `value & self.mask`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |         return self.buffer.poll_all();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.buffer.poll_all()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:264:9
[INFO] [stderr]     |
[INFO] [stderr] 264 |         return self.buffer.poll(max_items);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.buffer.poll(max_items)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:289:9
[INFO] [stderr]     |
[INFO] [stderr] 289 |         return self.buffer.offer(key, value);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.buffer.offer(key, value)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:293:9
[INFO] [stderr]     |
[INFO] [stderr] 293 |         return self.buffer.offer_value_only(value);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.buffer.offer_value_only(value)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/ring/spsc_coalescing_ring_buffer.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     return v;
[INFO] [stderr]    |     ^^^^^^^^^ help: remove `return` as shown: `v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |         return self.capacity;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.capacity`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |         return self.rejection_count.load(Ordering::SeqCst);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.rejection_count.load(Ordering::SeqCst)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |         return self.next_write.load(Ordering::SeqCst);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.next_write.load(Ordering::SeqCst)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |         return self.first_write.load(Ordering::SeqCst);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.first_write.load(Ordering::SeqCst)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:122:9
[INFO] [stderr]     |
[INFO] [stderr] 122 |         return self.first_write.load(Ordering::SeqCst) == self.next_write.load(Ordering::SeqCst);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.first_write.load(Ordering::SeqCst) == self.next_write.load(Ordering::SeqCst)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:126:9
[INFO] [stderr]     |
[INFO] [stderr] 126 |         return self.size() == self.capacity;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.size() == self.capacity`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |         return self.add(key_type, val_ptr);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.add(key_type, val_ptr)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:152:9
[INFO] [stderr]     |
[INFO] [stderr] 152 |         return self.add(KeyHolder::NonCollapsible, Box::into_raw(Box::new(value)));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.add(KeyHolder::NonCollapsible, Box::into_raw(Box::new(value)))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:162:9
[INFO] [stderr]     |
[INFO] [stderr] 162 |         return true;
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: remove `return` as shown: `true`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:193:9
[INFO] [stderr]     |
[INFO] [stderr] 193 |         return self.fill(total_to_poll);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.fill(total_to_poll)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:201:9
[INFO] [stderr]     |
[INFO] [stderr] 201 |         return self.fill(claim_up_to);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.fill(claim_up_to)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:221:9
[INFO] [stderr]     |
[INFO] [stderr] 221 |         return bucket;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `bucket`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:225:9
[INFO] [stderr]     |
[INFO] [stderr] 225 |         return value & self.mask;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `value & self.mask`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:260:9
[INFO] [stderr]     |
[INFO] [stderr] 260 |         return self.buffer.poll_all();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.buffer.poll_all()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:264:9
[INFO] [stderr]     |
[INFO] [stderr] 264 |         return self.buffer.poll(max_items);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.buffer.poll(max_items)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:289:9
[INFO] [stderr]     |
[INFO] [stderr] 289 |         return self.buffer.offer(key, value);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.buffer.offer(key, value)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:293:9
[INFO] [stderr]     |
[INFO] [stderr] 293 |         return self.buffer.offer_value_only(value);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `self.buffer.offer_value_only(value)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:577:9
[INFO] [stderr]     |
[INFO] [stderr] 577 |         return ret;
[INFO] [stderr]     |         ^^^^^^^^^^^ help: remove `return` as shown: `ret`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/ring/spsc_coalescing_ring_buffer.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     v = v - 1;
[INFO] [stderr]    |     ^^^^^^^^^ help: replace it with: `v -= 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/ring/spsc_coalescing_ring_buffer.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     v = v + 1;
[INFO] [stderr]    |     ^^^^^^^^^ help: replace it with: `v += 1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/ring/spsc_coalescing_ring_buffer.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     v = v - 1;
[INFO] [stderr]    |     ^^^^^^^^^ help: replace it with: `v -= 1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/ring/spsc_coalescing_ring_buffer.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     v = v + 1;
[INFO] [stderr]    |     ^^^^^^^^^ help: replace it with: `v += 1`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:498:34
[INFO] [stderr]     |
[INFO] [stderr] 498 |         assert_eq!(&BP_SNAPSHOT, snapshots.get(0).unwrap());
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&snapshots[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:499:37
[INFO] [stderr]     |
[INFO] [stderr] 499 |         assert_eq!(&VOD_SNAPSHOT_1, snapshots.get(1).unwrap());
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&snapshots[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:503:37
[INFO] [stderr]     |
[INFO] [stderr] 503 |         assert_eq!(&VOD_SNAPSHOT_2, snapshots.get(0).unwrap());
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&snapshots[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:519:34
[INFO] [stderr]     |
[INFO] [stderr] 519 |         assert_eq!(&BP_SNAPSHOT, snapshots.get(0).unwrap());
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&snapshots[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a Vec. Using `[]` is more clear and more concise
[INFO] [stderr]    --> src/ring/spsc_coalescing_ring_buffer.rs:520:37
[INFO] [stderr]     |
[INFO] [stderr] 520 |         assert_eq!(&VOD_SNAPSHOT_2, snapshots.get(1).unwrap());
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&snapshots[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:20:21
[INFO] [stderr]    |
[INFO] [stderr] 20 |         for i in 0..10000000 {
[INFO] [stderr]    |                     ^^^^^^^^ help: consider: `10_000_000`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:27:21
[INFO] [stderr]    |
[INFO] [stderr] 27 |         for i in 0..10000000 {
[INFO] [stderr]    |                     ^^^^^^^^ help: consider: `10_000_000`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:20:21
[INFO] [stderr]    |
[INFO] [stderr] 20 |         for i in 0..10000000 {
[INFO] [stderr]    |                     ^^^^^^^^ help: consider: `10_000_000`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/main.rs:27:21
[INFO] [stderr]    |
[INFO] [stderr] 27 |         for i in 0..10000000 {
[INFO] [stderr]    |                     ^^^^^^^^ help: consider: `10_000_000`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `"docker" "inspect" "6818fa09a13896dcf2955611b203d8fef6165e0ad22ef4357a22f37337e9340a"`
[INFO] running `"docker" "rm" "-f" "6818fa09a13896dcf2955611b203d8fef6165e0ad22ef4357a22f37337e9340a"`
[INFO] [stdout] 6818fa09a13896dcf2955611b203d8fef6165e0ad22ef4357a22f37337e9340a