[INFO] crate ranged_set 0.4.1 is already in cache
[INFO] extracting crate ranged_set 0.4.1 into work/ex/clippy-test-run/sources/stable/reg/ranged_set/0.4.1
[INFO] extracting crate ranged_set 0.4.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/ranged_set/0.4.1
[INFO] validating manifest of ranged_set-0.4.1 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 ranged_set-0.4.1 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 ranged_set-0.4.1
[INFO] finished frobbing ranged_set-0.4.1
[INFO] frobbed toml for ranged_set-0.4.1 written to work/ex/clippy-test-run/sources/stable/reg/ranged_set/0.4.1/Cargo.toml
[INFO] started frobbing ranged_set-0.4.1
[INFO] finished frobbing ranged_set-0.4.1
[INFO] frobbed toml for ranged_set-0.4.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/ranged_set/0.4.1/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 ranged_set-0.4.1 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-5/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/ranged_set/0.4.1:/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] b7c2521c396b04873fb9e8f8e9be61c294419dda5314485cbc0b979a2dbae779
[INFO] running `"docker" "start" "-a" "b7c2521c396b04873fb9e8f8e9be61c294419dda5314485cbc0b979a2dbae779"`
[INFO] [stderr]     Checking step v0.1.0
[INFO] [stderr]     Checking ranged_set v0.4.1 (/opt/crater/workdir)
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:44:36
[INFO] [stderr]    |
[INFO] [stderr] 44 |                   (Some(p), None) => match v == p {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 45 | |                     true => Range(RangeInclusive::new(v, s)),
[INFO] [stderr] 46 | |                     false => unimplemented!(),
[INFO] [stderr] 47 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v == p { Range(RangeInclusive::new(v, s)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:48:36
[INFO] [stderr]    |
[INFO] [stderr] 48 |                   (None, Some(n)) => match v == n {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 49 | |                     true => Range(RangeInclusive::new(s, v)),
[INFO] [stderr] 50 | |                     false => unimplemented!(),
[INFO] [stderr] 51 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v == n { Range(RangeInclusive::new(s, v)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:61:36
[INFO] [stderr]    |
[INFO] [stderr] 61 |                   (Some(p), None) => match v.end == p {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 62 | |                     true => Range(RangeInclusive::new(v.start, s)),
[INFO] [stderr] 63 | |                     false => unimplemented!(),
[INFO] [stderr] 64 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v.end == p { Range(RangeInclusive::new(v.start, s)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:65:36
[INFO] [stderr]    |
[INFO] [stderr] 65 |                   (None, Some(n)) => match v.start == n {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 66 | |                     true => Range(RangeInclusive::new(s, v.end)),
[INFO] [stderr] 67 | |                     false => unimplemented!(),
[INFO] [stderr] 68 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v.start == n { Range(RangeInclusive::new(s, v.end)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:78:36
[INFO] [stderr]    |
[INFO] [stderr] 78 |                   (Some(p), None) => match v == p {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 79 | |                     true => Range(RangeInclusive::new(v, r.end)),
[INFO] [stderr] 80 | |                     false => unimplemented!(),
[INFO] [stderr] 81 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v == p { Range(RangeInclusive::new(v, r.end)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:82:36
[INFO] [stderr]    |
[INFO] [stderr] 82 |                   (None, Some(n)) => match v == n {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 83 | |                     true => Range(RangeInclusive::new(r.start, v)),
[INFO] [stderr] 84 | |                     false => unimplemented!(),
[INFO] [stderr] 85 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v == n { Range(RangeInclusive::new(r.start, v)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:95:36
[INFO] [stderr]    |
[INFO] [stderr] 95 |                   (Some(p), None) => match v.end == p {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 96 | |                     true => Range(RangeInclusive::new(v.start, r.end)),
[INFO] [stderr] 97 | |                     false => unimplemented!(),
[INFO] [stderr] 98 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v.end == p { Range(RangeInclusive::new(v.start, r.end)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]    --> src/element/mod.rs:99:36
[INFO] [stderr]     |
[INFO] [stderr] 99  |                   (None, Some(n)) => match v.start == n {
[INFO] [stderr]     |  ____________________________________^
[INFO] [stderr] 100 | |                     true => Range(RangeInclusive::new(r.start, v.end)),
[INFO] [stderr] 101 | |                     false => unimplemented!(),
[INFO] [stderr] 102 | |                 },
[INFO] [stderr]     | |_________________^ help: consider using an if/else expression: `if v.start == n { Range(RangeInclusive::new(r.start, v.end)) } else { unimplemented!() }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/element/mod.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 | /         match self {
[INFO] [stderr] 110 | |             &Element::Range(ref r) => match (value.prev(), value.next()) {
[INFO] [stderr] 111 | |                 (Some(p), Some(n)) => {
[INFO] [stderr] 112 | |                     let prev = if r.start == p {
[INFO] [stderr] ...   |
[INFO] [stderr] 156 | |             _ => unreachable!(),
[INFO] [stderr] 157 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 109 |         match *self {
[INFO] [stderr] 110 |             Element::Range(ref r) => match (value.prev(), value.next()) {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/element/mod.rs:161:9
[INFO] [stderr]     |
[INFO] [stderr] 161 | /         match self {
[INFO] [stderr] 162 | |             &Element::Single(ref s) => s.next(),
[INFO] [stderr] 163 | |             &Element::Range(ref r) => r.end.next(),
[INFO] [stderr] 164 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 161 |         match *self {
[INFO] [stderr] 162 |             Element::Single(ref s) => s.next(),
[INFO] [stderr] 163 |             Element::Range(ref r) => r.end.next(),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/element/mod.rs:168:9
[INFO] [stderr]     |
[INFO] [stderr] 168 | /         match self {
[INFO] [stderr] 169 | |             &Element::Single(ref s) => s.prev(),
[INFO] [stderr] 170 | |             &Element::Range(ref r) => r.start.prev(),
[INFO] [stderr] 171 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 168 |         match *self {
[INFO] [stderr] 169 |             Element::Single(ref s) => s.prev(),
[INFO] [stderr] 170 |             Element::Range(ref r) => r.start.prev(),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `set::RangedSet<T>`
[INFO] [stderr]   --> src/set/mod.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 | /     pub fn new() -> RangedSet<T> {
[INFO] [stderr] 55 | |         RangedSet {
[INFO] [stderr] 56 | |             ranges: Vec::new(),
[INFO] [stderr] 57 | |         }
[INFO] [stderr] 58 | |     }
[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] 41 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_ok()`
[INFO] [stderr]   --> src/set/mod.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 | /         match self.find_index_for(value) {
[INFO] [stderr] 77 | |             Ok(_) => true,
[INFO] [stderr] 78 | |             Err(_) => false,
[INFO] [stderr] 79 | |         }
[INFO] [stderr]    | |_________^ help: try this: `self.find_index_for(value).is_ok()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_some()`
[INFO] [stderr]    --> src/set/mod.rs:249:9
[INFO] [stderr]     |
[INFO] [stderr] 249 | /         match self.take(value) {
[INFO] [stderr] 250 | |             Some(_) => true,
[INFO] [stderr] 251 | |             None => false,
[INFO] [stderr] 252 | |         }
[INFO] [stderr]     | |_________^ help: try this: `self.take(value).is_some()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:44:36
[INFO] [stderr]    |
[INFO] [stderr] 44 |                   (Some(p), None) => match v == p {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 45 | |                     true => Range(RangeInclusive::new(v, s)),
[INFO] [stderr] 46 | |                     false => unimplemented!(),
[INFO] [stderr] 47 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v == p { Range(RangeInclusive::new(v, s)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_bool)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:48:36
[INFO] [stderr]    |
[INFO] [stderr] 48 |                   (None, Some(n)) => match v == n {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 49 | |                     true => Range(RangeInclusive::new(s, v)),
[INFO] [stderr] 50 | |                     false => unimplemented!(),
[INFO] [stderr] 51 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v == n { Range(RangeInclusive::new(s, v)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:61:36
[INFO] [stderr]    |
[INFO] [stderr] 61 |                   (Some(p), None) => match v.end == p {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 62 | |                     true => Range(RangeInclusive::new(v.start, s)),
[INFO] [stderr] 63 | |                     false => unimplemented!(),
[INFO] [stderr] 64 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v.end == p { Range(RangeInclusive::new(v.start, s)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:65:36
[INFO] [stderr]    |
[INFO] [stderr] 65 |                   (None, Some(n)) => match v.start == n {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 66 | |                     true => Range(RangeInclusive::new(s, v.end)),
[INFO] [stderr] 67 | |                     false => unimplemented!(),
[INFO] [stderr] 68 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v.start == n { Range(RangeInclusive::new(s, v.end)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:78:36
[INFO] [stderr]    |
[INFO] [stderr] 78 |                   (Some(p), None) => match v == p {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 79 | |                     true => Range(RangeInclusive::new(v, r.end)),
[INFO] [stderr] 80 | |                     false => unimplemented!(),
[INFO] [stderr] 81 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v == p { Range(RangeInclusive::new(v, r.end)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:82:36
[INFO] [stderr]    |
[INFO] [stderr] 82 |                   (None, Some(n)) => match v == n {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 83 | |                     true => Range(RangeInclusive::new(r.start, v)),
[INFO] [stderr] 84 | |                     false => unimplemented!(),
[INFO] [stderr] 85 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v == n { Range(RangeInclusive::new(r.start, v)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]   --> src/element/mod.rs:95:36
[INFO] [stderr]    |
[INFO] [stderr] 95 |                   (Some(p), None) => match v.end == p {
[INFO] [stderr]    |  ____________________________________^
[INFO] [stderr] 96 | |                     true => Range(RangeInclusive::new(v.start, r.end)),
[INFO] [stderr] 97 | |                     false => unimplemented!(),
[INFO] [stderr] 98 | |                 },
[INFO] [stderr]    | |_________________^ help: consider using an if/else expression: `if v.end == p { Range(RangeInclusive::new(v.start, r.end)) } else { unimplemented!() }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to match on a boolean expression
[INFO] [stderr]    --> src/element/mod.rs:99:36
[INFO] [stderr]     |
[INFO] [stderr] 99  |                   (None, Some(n)) => match v.start == n {
[INFO] [stderr]     |  ____________________________________^
[INFO] [stderr] 100 | |                     true => Range(RangeInclusive::new(r.start, v.end)),
[INFO] [stderr] 101 | |                     false => unimplemented!(),
[INFO] [stderr] 102 | |                 },
[INFO] [stderr]     | |_________________^ help: consider using an if/else expression: `if v.start == n { Range(RangeInclusive::new(r.start, v.end)) } else { unimplemented!() }`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_bool
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/element/mod.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 | /         match self {
[INFO] [stderr] 110 | |             &Element::Range(ref r) => match (value.prev(), value.next()) {
[INFO] [stderr] 111 | |                 (Some(p), Some(n)) => {
[INFO] [stderr] 112 | |                     let prev = if r.start == p {
[INFO] [stderr] ...   |
[INFO] [stderr] 156 | |             _ => unreachable!(),
[INFO] [stderr] 157 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::match_ref_pats)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 109 |         match *self {
[INFO] [stderr] 110 |             Element::Range(ref r) => match (value.prev(), value.next()) {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/element/mod.rs:161:9
[INFO] [stderr]     |
[INFO] [stderr] 161 | /         match self {
[INFO] [stderr] 162 | |             &Element::Single(ref s) => s.next(),
[INFO] [stderr] 163 | |             &Element::Range(ref r) => r.end.next(),
[INFO] [stderr] 164 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 161 |         match *self {
[INFO] [stderr] 162 |             Element::Single(ref s) => s.next(),
[INFO] [stderr] 163 |             Element::Range(ref r) => r.end.next(),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you don't need to add `&` to all patterns
[INFO] [stderr]    --> src/element/mod.rs:168:9
[INFO] [stderr]     |
[INFO] [stderr] 168 | /         match self {
[INFO] [stderr] 169 | |             &Element::Single(ref s) => s.prev(),
[INFO] [stderr] 170 | |             &Element::Range(ref r) => r.start.prev(),
[INFO] [stderr] 171 | |         }
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_ref_pats
[INFO] [stderr] help: instead of prefixing all patterns with `&`, you can dereference the expression
[INFO] [stderr]     |
[INFO] [stderr] 168 |         match *self {
[INFO] [stderr] 169 |             Element::Single(ref s) => s.prev(),
[INFO] [stderr] 170 |             Element::Range(ref r) => r.start.prev(),
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: you should consider deriving a `Default` implementation for `set::RangedSet<T>`
[INFO] [stderr]   --> src/set/mod.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 | /     pub fn new() -> RangedSet<T> {
[INFO] [stderr] 55 | |         RangedSet {
[INFO] [stderr] 56 | |             ranges: Vec::new(),
[INFO] [stderr] 57 | |         }
[INFO] [stderr] 58 | |     }
[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] 41 | #[derive(Default)]
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_ok()`
[INFO] [stderr]   --> src/set/mod.rs:76:9
[INFO] [stderr]    |
[INFO] [stderr] 76 | /         match self.find_index_for(value) {
[INFO] [stderr] 77 | |             Ok(_) => true,
[INFO] [stderr] 78 | |             Err(_) => false,
[INFO] [stderr] 79 | |         }
[INFO] [stderr]    | |_________^ help: try this: `self.find_index_for(value).is_ok()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_some()`
[INFO] [stderr]    --> src/set/mod.rs:249:9
[INFO] [stderr]     |
[INFO] [stderr] 249 | /         match self.take(value) {
[INFO] [stderr] 250 | |             Some(_) => true,
[INFO] [stderr] 251 | |             None => false,
[INFO] [stderr] 252 | |         }
[INFO] [stderr]     | |_________^ help: try this: `self.take(value).is_some()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `"docker" "inspect" "b7c2521c396b04873fb9e8f8e9be61c294419dda5314485cbc0b979a2dbae779"`
[INFO] running `"docker" "rm" "-f" "b7c2521c396b04873fb9e8f8e9be61c294419dda5314485cbc0b979a2dbae779"`
[INFO] [stdout] b7c2521c396b04873fb9e8f8e9be61c294419dda5314485cbc0b979a2dbae779