[INFO] crate xi-rope 0.2.0 is already in cache
[INFO] extracting crate xi-rope 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/xi-rope/0.2.0
[INFO] extracting crate xi-rope 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/xi-rope/0.2.0
[INFO] validating manifest of xi-rope-0.2.0 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 xi-rope-0.2.0 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 xi-rope-0.2.0
[INFO] finished frobbing xi-rope-0.2.0
[INFO] frobbed toml for xi-rope-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/xi-rope/0.2.0/Cargo.toml
[INFO] started frobbing xi-rope-0.2.0
[INFO] finished frobbing xi-rope-0.2.0
[INFO] frobbed toml for xi-rope-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/xi-rope/0.2.0/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 xi-rope-0.2.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/xi-rope/0.2.0:/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] 8c2904ef2871180102580d302162258ab22288a2012d5b3ae0544b3387e2572f
[INFO] running `"docker" "start" "-a" "8c2904ef2871180102580d302162258ab22288a2012d5b3ae0544b3387e2572f"`
[INFO] [stderr]     Checking xi-rope v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/tree.rs:152:13
[INFO] [stderr]     |
[INFO] [stderr] 152 |             len: len,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `len`
[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/tree.rs:153:13
[INFO] [stderr]     |
[INFO] [stderr] 153 |             info: info,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `info`
[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/tree.rs:168:13
[INFO] [stderr]     |
[INFO] [stderr] 168 |             height: height,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `height`
[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/tree.rs:169:13
[INFO] [stderr]     |
[INFO] [stderr] 169 |             len: len,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `len`
[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/tree.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |             info: info,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `info`
[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/tree.rs:469:13
[INFO] [stderr]     |
[INFO] [stderr] 469 |             position: position,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `position`
[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/breaks.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |             len: len,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `len`
[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/interval.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |             start: start,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `start`
[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/interval.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |             start: start,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `start`
[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/interval.rs:142:13
[INFO] [stderr]     |
[INFO] [stderr] 142 |             start: start,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `start`
[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/interval.rs:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |             end: end,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `end`
[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/delta.rs:47:30
[INFO] [stderr]    |
[INFO] [stderr] 47 |         Delta { els: result, base_len: base_len }
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^ help: replace it with: `base_len`
[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/delta.rs:150:17
[INFO] [stderr]     |
[INFO] [stderr] 150 |         Delta { els: els, base_len: base_len }
[INFO] [stderr]     |                 ^^^^^^^^ help: replace it with: `els`
[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/delta.rs:150:27
[INFO] [stderr]     |
[INFO] [stderr] 150 |         Delta { els: els, base_len: base_len }
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^ help: replace it with: `base_len`
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/delta.rs:174:46
[INFO] [stderr]     |
[INFO] [stderr] 174 |                     DeltaElement::Insert(ref n) => {
[INFO] [stderr]     |                                              ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/delta.rs:182:44
[INFO] [stderr]     |
[INFO] [stderr] 182 |                     DeltaElement::Copy(_b, e) => {
[INFO] [stderr]     |                                            ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/delta.rs:210:17
[INFO] [stderr]     |
[INFO] [stderr] 210 |         Delta { els: els, base_len: l }
[INFO] [stderr]     |                 ^^^^^^^^ help: replace it with: `els`
[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/delta.rs:282:13
[INFO] [stderr]     |
[INFO] [stderr] 282 |             delta: delta,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `delta`
[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/rope.rs:310:13
[INFO] [stderr]     |
[INFO] [stderr] 310 |             end: end,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `end`
[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/spans.rs:106:13
[INFO] [stderr]     |
[INFO] [stderr] 106 |             iv: iv,
[INFO] [stderr]     |             ^^^^^^ help: replace it with: `iv`
[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/spans.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |             total_len: total_len,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `total_len`
[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/spans.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |             data: data,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `data`
[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/subset.rs:256:13
[INFO] [stderr]     |
[INFO] [stderr] 256 |             base_len: base_len,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `base_len`
[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/engine.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 |                 undo_group: undo_group,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `undo_group`
[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/engine.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |             from_union: from_union,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `from_union`
[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/engine.rs:214:17
[INFO] [stderr]     |
[INFO] [stderr] 214 |                 groups: groups
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: replace it with: `groups`
[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/engine.rs:286:29
[INFO] [stderr]     |
[INFO] [stderr] 286 |                             from_union: from_union,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `from_union`
[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/engine.rs:289:33
[INFO] [stderr]     |
[INFO] [stderr] 289 |                                 priority: priority,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^ help: replace it with: `priority`
[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/engine.rs:290:33
[INFO] [stderr]     |
[INFO] [stderr] 290 |                                 undo_group: undo_group,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `undo_group`
[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/engine.rs:291:33
[INFO] [stderr]     |
[INFO] [stderr] 291 |                                 inserts: inserts,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^ help: replace it with: `inserts`
[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/engine.rs:292:33
[INFO] [stderr]     |
[INFO] [stderr] 292 |                                 deletes: deletes,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^ help: replace it with: `deletes`
[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/engine.rs:312:29
[INFO] [stderr]     |
[INFO] [stderr] 312 |                             from_union: from_union,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `from_union`
[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/lib.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |             root: root,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `root`
[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/lib.rs:171:13
[INFO] [stderr]     |
[INFO] [stderr] 171 |             start: start,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `start`
[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/lib.rs:345:13
[INFO] [stderr]     |
[INFO] [stderr] 345 |             len: len
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `len`
[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/tree.rs:152:13
[INFO] [stderr]     |
[INFO] [stderr] 152 |             len: len,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `len`
[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/tree.rs:153:13
[INFO] [stderr]     |
[INFO] [stderr] 153 |             info: info,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `info`
[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/tree.rs:168:13
[INFO] [stderr]     |
[INFO] [stderr] 168 |             height: height,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: replace it with: `height`
[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/tree.rs:169:13
[INFO] [stderr]     |
[INFO] [stderr] 169 |             len: len,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `len`
[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/tree.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |             info: info,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `info`
[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/tree.rs:469:13
[INFO] [stderr]     |
[INFO] [stderr] 469 |             position: position,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `position`
[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/breaks.rs:196:13
[INFO] [stderr]     |
[INFO] [stderr] 196 |             len: len,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `len`
[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/interval.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |             start: start,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `start`
[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/interval.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |             start: start,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `start`
[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/interval.rs:142:13
[INFO] [stderr]     |
[INFO] [stderr] 142 |             start: start,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `start`
[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/interval.rs:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |             end: end,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `end`
[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/delta.rs:47:30
[INFO] [stderr]    |
[INFO] [stderr] 47 |         Delta { els: result, base_len: base_len }
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^ help: replace it with: `base_len`
[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/delta.rs:150:17
[INFO] [stderr]     |
[INFO] [stderr] 150 |         Delta { els: els, base_len: base_len }
[INFO] [stderr]     |                 ^^^^^^^^ help: replace it with: `els`
[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/delta.rs:150:27
[INFO] [stderr]     |
[INFO] [stderr] 150 |         Delta { els: els, base_len: base_len }
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^ help: replace it with: `base_len`
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/delta.rs:174:46
[INFO] [stderr]     |
[INFO] [stderr] 174 |                     DeltaElement::Insert(ref n) => {
[INFO] [stderr]     |                                              ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::many_single_char_names)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/delta.rs:182:44
[INFO] [stderr]     |
[INFO] [stderr] 182 |                     DeltaElement::Copy(_b, e) => {
[INFO] [stderr]     |                                            ^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/delta.rs:210:17
[INFO] [stderr]     |
[INFO] [stderr] 210 |         Delta { els: els, base_len: l }
[INFO] [stderr]     |                 ^^^^^^^^ help: replace it with: `els`
[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/delta.rs:282:13
[INFO] [stderr]     |
[INFO] [stderr] 282 |             delta: delta,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `delta`
[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/rope.rs:310:13
[INFO] [stderr]     |
[INFO] [stderr] 310 |             end: end,
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `end`
[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/spans.rs:106:13
[INFO] [stderr]     |
[INFO] [stderr] 106 |             iv: iv,
[INFO] [stderr]     |             ^^^^^^ help: replace it with: `iv`
[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/spans.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |             total_len: total_len,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `total_len`
[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/spans.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |             data: data,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `data`
[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/subset.rs:256:13
[INFO] [stderr]     |
[INFO] [stderr] 256 |             base_len: base_len,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^ help: replace it with: `base_len`
[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/engine.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 |                 undo_group: undo_group,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `undo_group`
[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/engine.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |             from_union: from_union,
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `from_union`
[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/engine.rs:214:17
[INFO] [stderr]     |
[INFO] [stderr] 214 |                 groups: groups
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^ help: replace it with: `groups`
[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/engine.rs:286:29
[INFO] [stderr]     |
[INFO] [stderr] 286 |                             from_union: from_union,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `from_union`
[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/engine.rs:289:33
[INFO] [stderr]     |
[INFO] [stderr] 289 |                                 priority: priority,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^ help: replace it with: `priority`
[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/engine.rs:290:33
[INFO] [stderr]     |
[INFO] [stderr] 290 |                                 undo_group: undo_group,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `undo_group`
[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/engine.rs:291:33
[INFO] [stderr]     |
[INFO] [stderr] 291 |                                 inserts: inserts,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^ help: replace it with: `inserts`
[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/engine.rs:292:33
[INFO] [stderr]     |
[INFO] [stderr] 292 |                                 deletes: deletes,
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^ help: replace it with: `deletes`
[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/engine.rs:312:29
[INFO] [stderr]     |
[INFO] [stderr] 312 |                             from_union: from_union,
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `from_union`
[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/lib.rs:170:13
[INFO] [stderr]     |
[INFO] [stderr] 170 |             root: root,
[INFO] [stderr]     |             ^^^^^^^^^^ help: replace it with: `root`
[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/lib.rs:171:13
[INFO] [stderr]     |
[INFO] [stderr] 171 |             start: start,
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: replace it with: `start`
[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/lib.rs:345:13
[INFO] [stderr]     |
[INFO] [stderr] 345 |             len: len
[INFO] [stderr]     |             ^^^^^^^^ help: replace it with: `len`
[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/delta.rs:311:9
[INFO] [stderr]     |
[INFO] [stderr] 311 |         return result;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[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: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/delta.rs:325:32
[INFO] [stderr]     |
[INFO] [stderr] 325 |                           } else {
[INFO] [stderr]     |  ________________________________^
[INFO] [stderr] 326 | |                             if !iv.is_before(beg) {
[INFO] [stderr] 327 | |                                 return true;
[INFO] [stderr] 328 | |                             }
[INFO] [stderr] 329 | |                         }
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 325 |                         } else if !iv.is_before(beg) {
[INFO] [stderr] 326 |     return true;
[INFO] [stderr] 327 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/delta.rs:311:9
[INFO] [stderr]     |
[INFO] [stderr] 311 |         return result;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^ help: remove `return` as shown: `result`
[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: this `else { if .. }` block can be collapsed
[INFO] [stderr]    --> src/delta.rs:325:32
[INFO] [stderr]     |
[INFO] [stderr] 325 |                           } else {
[INFO] [stderr]     |  ________________________________^
[INFO] [stderr] 326 | |                             if !iv.is_before(beg) {
[INFO] [stderr] 327 | |                                 return true;
[INFO] [stderr] 328 | |                             }
[INFO] [stderr] 329 | |                         }
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::collapsible_if)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#collapsible_if
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 325 |                         } else if !iv.is_before(beg) {
[INFO] [stderr] 326 |     return true;
[INFO] [stderr] 327 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/delta.rs:351:22
[INFO] [stderr]     |
[INFO] [stderr] 351 |     const TEST_STR: &'static str = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
[INFO] [stderr]     |                     -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::const_static_lifetime)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: Constants have by default a `'static` lifetime
[INFO] [stderr]    --> src/subset.rs:300:22
[INFO] [stderr]     |
[INFO] [stderr] 300 |     const TEST_STR: &'static str = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
[INFO] [stderr]     |                     -^^^^^^^---- help: consider removing `'static`: `&str`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#const_static_lifetime
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tree.rs:237:17
[INFO] [stderr]     |
[INFO] [stderr] 237 |             let mut node1 = Arc::make_mut(&mut rope1.0);
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Leaf` has a `len` method but no (possibly inherited) `is_empty` method
[INFO] [stderr]   --> src/tree.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | / pub trait Leaf: Sized + Clone + Default {
[INFO] [stderr] 60 | |
[INFO] [stderr] 61 | |     // measurement of leaf in base units
[INFO] [stderr] 62 | |     fn len(&self) -> usize;
[INFO] [stderr] ...  |
[INFO] [stderr] 85 | |     }
[INFO] [stderr] 86 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: item `tree::Node<N>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/tree.rs:145:1
[INFO] [stderr]     |
[INFO] [stderr] 145 | / impl<N: NodeInfo> Node<N> {
[INFO] [stderr] 146 | |     pub fn from_leaf(l: N::L) -> Node<N> {
[INFO] [stderr] 147 | |         let len = l.len();
[INFO] [stderr] 148 | |         let info = N::compute_info(&l);
[INFO] [stderr] ...   |
[INFO] [stderr] 414 | |     }
[INFO] [stderr] 415 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `tree::TreeBuilder<N>`
[INFO] [stderr]    --> src/tree.rs:426:5
[INFO] [stderr]     |
[INFO] [stderr] 426 | /     pub fn new() -> TreeBuilder<N> {
[INFO] [stderr] 427 | |         TreeBuilder(None)
[INFO] [stderr] 428 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 423 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `is_*` usually take self by reference or no self; consider choosing a less ambiguous name
[INFO] [stderr]    --> src/tree.rs:500:38
[INFO] [stderr]     |
[INFO] [stderr] 500 |     pub fn is_boundary<M: Metric<N>>(&mut self) -> bool {
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `next` on this type; consider implementing the `std::iter::Iterator` trait or choosing a less ambiguous name
[INFO] [stderr]    --> src/tree.rs:569:5
[INFO] [stderr]     |
[INFO] [stderr] 569 | /     pub fn next<M: Metric<N>>(&mut self) -> Option<(usize)> {
[INFO] [stderr] 570 | |         if self.position >= self.root.len() || self.leaf.is_none() {
[INFO] [stderr] 571 | |             self.leaf = None;
[INFO] [stderr] 572 | |             return None;
[INFO] [stderr] ...   |
[INFO] [stderr] 595 | |         }
[INFO] [stderr] 596 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::should_implement_trait)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: You appear to be counting bytes the naive way
[INFO] [stderr]    --> src/rope.rs:195:5
[INFO] [stderr]     |
[INFO] [stderr] 195 |     s.as_bytes().iter().filter(|&&c| c == b'\n').count()
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider using the bytecount crate: `bytecount::count(s.as_bytes(), b'\n')`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::naive_bytecount)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#naive_bytecount
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/rope.rs:475:64
[INFO] [stderr]     |
[INFO] [stderr] 475 |                     result = cow_append(result, &self.fragment[.. i + 1]);
[INFO] [stderr]     |                                                                ^^^^^^^^ help: use: `..=i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: item `Rope` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/lib.rs:133:1
[INFO] [stderr]     |
[INFO] [stderr] 133 | / impl Rope {
[INFO] [stderr] 134 | |     /// Returns the length of `self`.
[INFO] [stderr] 135 | |     ///
[INFO] [stderr] 136 | |     /// The length is in bytes, the same as `str::len()`.
[INFO] [stderr] ...   |
[INFO] [stderr] 347 | |     }
[INFO] [stderr] 348 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]     --> src/lib.rs:1023:64
[INFO] [stderr]      |
[INFO] [stderr] 1023 |                     result = cow_append(result, &self.fragment[.. i + 1]);
[INFO] [stderr]      |                                                                ^^^^^^^^ help: use: `..=i`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tree.rs:237:17
[INFO] [stderr]     |
[INFO] [stderr] 237 |             let mut node1 = Arc::make_mut(&mut rope1.0);
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Leaf` has a `len` method but no (possibly inherited) `is_empty` method
[INFO] [stderr]   --> src/tree.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | / pub trait Leaf: Sized + Clone + Default {
[INFO] [stderr] 60 | |
[INFO] [stderr] 61 | |     // measurement of leaf in base units
[INFO] [stderr] 62 | |     fn len(&self) -> usize;
[INFO] [stderr] ...  |
[INFO] [stderr] 85 | |     }
[INFO] [stderr] 86 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::len_without_is_empty)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: item `tree::Node<N>` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/tree.rs:145:1
[INFO] [stderr]     |
[INFO] [stderr] 145 | / impl<N: NodeInfo> Node<N> {
[INFO] [stderr] 146 | |     pub fn from_leaf(l: N::L) -> Node<N> {
[INFO] [stderr] 147 | |         let len = l.len();
[INFO] [stderr] 148 | |         let info = N::compute_info(&l);
[INFO] [stderr] ...   |
[INFO] [stderr] 414 | |     }
[INFO] [stderr] 415 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `tree::TreeBuilder<N>`
[INFO] [stderr]    --> src/tree.rs:426:5
[INFO] [stderr]     |
[INFO] [stderr] 426 | /     pub fn new() -> TreeBuilder<N> {
[INFO] [stderr] 427 | |         TreeBuilder(None)
[INFO] [stderr] 428 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 423 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: methods called `is_*` usually take self by reference or no self; consider choosing a less ambiguous name
[INFO] [stderr]    --> src/tree.rs:500:38
[INFO] [stderr]     |
[INFO] [stderr] 500 |     pub fn is_boundary<M: Metric<N>>(&mut self) -> bool {
[INFO] [stderr]     |                                      ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::wrong_self_convention)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
[INFO] [stderr] 
[INFO] [stderr] warning: defining a method called `next` on this type; consider implementing the `std::iter::Iterator` trait or choosing a less ambiguous name
[INFO] [stderr]    --> src/tree.rs:569:5
[INFO] [stderr]     |
[INFO] [stderr] 569 | /     pub fn next<M: Metric<N>>(&mut self) -> Option<(usize)> {
[INFO] [stderr] 570 | |         if self.position >= self.root.len() || self.leaf.is_none() {
[INFO] [stderr] 571 | |             self.leaf = None;
[INFO] [stderr] 572 | |             return None;
[INFO] [stderr] ...   |
[INFO] [stderr] 595 | |         }
[INFO] [stderr] 596 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::should_implement_trait)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#should_implement_trait
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> examples/ropetoy.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |     for i in 0..1000000 {
[INFO] [stderr]    |                 ^^^^^^^ help: consider: `1_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: You appear to be counting bytes the naive way
[INFO] [stderr]    --> src/rope.rs:195:5
[INFO] [stderr]     |
[INFO] [stderr] 195 |     s.as_bytes().iter().filter(|&&c| c == b'\n').count()
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: Consider using the bytecount crate: `bytecount::count(s.as_bytes(), b'\n')`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::naive_bytecount)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#naive_bytecount
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/rope.rs:475:64
[INFO] [stderr]     |
[INFO] [stderr] 475 |                     result = cow_append(result, &self.fragment[.. i + 1]);
[INFO] [stderr]     |                                                                ^^^^^^^^ help: use: `..=i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: item `Rope` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/lib.rs:133:1
[INFO] [stderr]     |
[INFO] [stderr] 133 | / impl Rope {
[INFO] [stderr] 134 | |     /// Returns the length of `self`.
[INFO] [stderr] 135 | |     ///
[INFO] [stderr] 136 | |     /// The length is in bytes, the same as `str::len()`.
[INFO] [stderr] ...   |
[INFO] [stderr] 347 | |     }
[INFO] [stderr] 348 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]     --> src/lib.rs:1023:64
[INFO] [stderr]      |
[INFO] [stderr] 1023 |                     result = cow_append(result, &self.fragment[.. i + 1]);
[INFO] [stderr]      |                                                                ^^^^^^^^ help: use: `..=i`
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] error: equal expressions as operands to `==`
[INFO] [stderr]     --> src/lib.rs:1268:13
[INFO] [stderr]      |
[INFO] [stderr] 1268 |     assert!(empty == empty);
[INFO] [stderr]      |             ^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[deny(clippy::eq_op)] on by default
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#eq_op
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `xi-rope`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8c2904ef2871180102580d302162258ab22288a2012d5b3ae0544b3387e2572f"`
[INFO] running `"docker" "rm" "-f" "8c2904ef2871180102580d302162258ab22288a2012d5b3ae0544b3387e2572f"`
[INFO] [stdout] 8c2904ef2871180102580d302162258ab22288a2012d5b3ae0544b3387e2572f