[INFO] updating cached repository ichyo/icfpc2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ichyo/icfpc2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ichyo/icfpc2018" "work/ex/clippy-test-run/sources/stable/gh/ichyo/icfpc2018"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/ichyo/icfpc2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ichyo/icfpc2018" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ichyo/icfpc2018"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ichyo/icfpc2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 94bbc543e58e92cb6c782f938353061e04d4d1ba
[INFO] sha for GitHub repo ichyo/icfpc2018: 94bbc543e58e92cb6c782f938353061e04d4d1ba
[INFO] validating manifest of ichyo/icfpc2018 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 ichyo/icfpc2018 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 ichyo/icfpc2018
[INFO] finished frobbing ichyo/icfpc2018
[INFO] frobbed toml for ichyo/icfpc2018 written to work/ex/clippy-test-run/sources/stable/gh/ichyo/icfpc2018/Cargo.toml
[INFO] started frobbing ichyo/icfpc2018
[INFO] finished frobbing ichyo/icfpc2018
[INFO] frobbed toml for ichyo/icfpc2018 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/ichyo/icfpc2018/Cargo.toml
[INFO] crate ichyo/icfpc2018 has a lockfile. skipping
[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 ichyo/icfpc2018 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/gh/ichyo/icfpc2018:/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] c1a5c482acbd997ff783d08b4dfbad827bcd7fa7549713667280db6ba7719783
[INFO] running `"docker" "start" "-a" "c1a5c482acbd997ff783d08b4dfbad827bcd7fa7549713667280db6ba7719783"`
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking relay v0.1.1
[INFO] [stderr]     Checking want v0.0.4
[INFO] [stderr]     Checking tokio-io v0.1.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.5
[INFO] [stderr]     Checking serde_urlencoded v0.5.2
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]     Checking csv v1.0.0
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking tokio-reactor v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.1
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking hyper v0.11.27
[INFO] [stderr]     Checking hyper-tls v0.1.3
[INFO] [stderr]     Checking reqwest v0.8.6
[INFO] [stderr]     Checking icfpc2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: 5th binding whose name is just one char
[INFO] [stderr]    --> src/nano/trace.rs:174:25
[INFO] [stderr]     |
[INFO] [stderr] 174 |                     let a = mask(x >> 4, 2);
[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: 6th binding whose name is just one char
[INFO] [stderr]    --> src/nano/trace.rs:175:25
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let i = mask(y, 5);
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/nano/trace.rs:202:25
[INFO] [stderr]     |
[INFO] [stderr] 202 |                     let p = PnDiff::decode_near(nd);
[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: 6th binding whose name is just one char
[INFO] [stderr]    --> src/nano/trace.rs:203:25
[INFO] [stderr]     |
[INFO] [stderr] 203 |                     let m = y;
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/nano/trace.rs:222:25
[INFO] [stderr]     |
[INFO] [stderr] 222 |                     let f = PnDiff::decode_far(dx, dy, dz);
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/nano/trace.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                     let f = PnDiff::decode_far(dx, dy, dz);
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/nano/solver.rs:476:28
[INFO] [stderr]     |
[INFO] [stderr] 476 |                 let (f, t, d) = if dx != 0 {
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/nano/trace.rs:174:25
[INFO] [stderr]     |
[INFO] [stderr] 174 |                     let a = mask(x >> 4, 2);
[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: 6th binding whose name is just one char
[INFO] [stderr]    --> src/nano/trace.rs:175:25
[INFO] [stderr]     |
[INFO] [stderr] 175 |                     let i = mask(y, 5);
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/nano/trace.rs:202:25
[INFO] [stderr]     |
[INFO] [stderr] 202 |                     let p = PnDiff::decode_near(nd);
[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: 6th binding whose name is just one char
[INFO] [stderr]    --> src/nano/trace.rs:203:25
[INFO] [stderr]     |
[INFO] [stderr] 203 |                     let m = y;
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/nano/trace.rs:222:25
[INFO] [stderr]     |
[INFO] [stderr] 222 |                     let f = PnDiff::decode_far(dx, dy, dz);
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/nano/trace.rs:231:25
[INFO] [stderr]     |
[INFO] [stderr] 231 |                     let f = PnDiff::decode_far(dx, dy, dz);
[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: 5th binding whose name is just one char
[INFO] [stderr]    --> src/nano/solver.rs:476:28
[INFO] [stderr]     |
[INFO] [stderr] 476 |                 let (f, t, d) = if dx != 0 {
[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: long literal lacking separators
[INFO] [stderr]    --> src/nano/trace.rs:112:44
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 Command::Halt => w.write(&[0b11111111])?,
[INFO] [stderr]     |                                            ^^^^^^^^^^ help: consider: `0b1111_1111`
[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/nano/trace.rs:113:44
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 Command::Wait => w.write(&[0b11111110])?,
[INFO] [stderr]     |                                            ^^^^^^^^^^ help: consider: `0b1111_1110`
[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/nano/trace.rs:114:44
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 Command::Flip => w.write(&[0b11111101])?,
[INFO] [stderr]     |                                            ^^^^^^^^^^ help: consider: `0b1111_1101`
[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/nano/trace.rs:117:31
[INFO] [stderr]     |
[INFO] [stderr] 117 |                     w.write(&[0b00000100 | (a << 4), i])?
[INFO] [stderr]     |                               ^^^^^^^^^^ help: consider: `0b0000_0100`
[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/nano/trace.rs:169:17
[INFO] [stderr]     |
[INFO] [stderr] 169 |                 0b11111111 => Command::Halt,
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b1111_1111`
[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/nano/trace.rs:170:17
[INFO] [stderr]     |
[INFO] [stderr] 170 |                 0b11111110 => Command::Wait,
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b1111_1110`
[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/nano/trace.rs:171:17
[INFO] [stderr]     |
[INFO] [stderr] 171 |                 0b11111101 => Command::Flip,
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b1111_1101`
[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: unused import: `nano::util::floor`
[INFO] [stderr]  --> src/nano/solver.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use nano::util::floor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/nano/solver.rs:21:25
[INFO] [stderr]    |
[INFO] [stderr] 21 | const MAX_ITER: usize = 2000000;
[INFO] [stderr]    |                         ^^^^^^^ help: consider: `2_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: Unnecessary `>= y + 1` or `x - 1 >=`
[INFO] [stderr]   --> src/nano/solver.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 69 |         if MAX_SEED as usize <= 2 * r as usize - 1 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::int_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#int_plus_one
[INFO] [stderr] help: change `>= y + 1` to `> y` as shown
[INFO] [stderr]    |
[INFO] [stderr] 69 |         if MAX_SEED as usize < 2 * r as usize {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]    --> src/nano/trace.rs:112:44
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 Command::Halt => w.write(&[0b11111111])?,
[INFO] [stderr]     |                                            ^^^^^^^^^^ help: consider: `0b1111_1111`
[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/nano/trace.rs:113:44
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 Command::Wait => w.write(&[0b11111110])?,
[INFO] [stderr]     |                                            ^^^^^^^^^^ help: consider: `0b1111_1110`
[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/nano/trace.rs:114:44
[INFO] [stderr]     |
[INFO] [stderr] 114 |                 Command::Flip => w.write(&[0b11111101])?,
[INFO] [stderr]     |                                            ^^^^^^^^^^ help: consider: `0b1111_1101`
[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/nano/trace.rs:117:31
[INFO] [stderr]     |
[INFO] [stderr] 117 |                     w.write(&[0b00000100 | (a << 4), i])?
[INFO] [stderr]     |                               ^^^^^^^^^^ help: consider: `0b0000_0100`
[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/nano/trace.rs:169:17
[INFO] [stderr]     |
[INFO] [stderr] 169 |                 0b11111111 => Command::Halt,
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b1111_1111`
[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/nano/trace.rs:170:17
[INFO] [stderr]     |
[INFO] [stderr] 170 |                 0b11111110 => Command::Wait,
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b1111_1110`
[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/nano/trace.rs:171:17
[INFO] [stderr]     |
[INFO] [stderr] 171 |                 0b11111101 => Command::Flip,
[INFO] [stderr]     |                 ^^^^^^^^^^ help: consider: `0b1111_1101`
[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: unused import: `nano::util::floor`
[INFO] [stderr]  --> src/nano/solver.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use nano::util::floor;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/nano/solver.rs:21:25
[INFO] [stderr]    |
[INFO] [stderr] 21 | const MAX_ITER: usize = 2000000;
[INFO] [stderr]    |                         ^^^^^^^ help: consider: `2_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: Unnecessary `>= y + 1` or `x - 1 >=`
[INFO] [stderr]   --> src/nano/solver.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 69 |         if MAX_SEED as usize <= 2 * r as usize - 1 {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::int_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#int_plus_one
[INFO] [stderr] help: change `>= y + 1` to `> y` as shown
[INFO] [stderr]    |
[INFO] [stderr] 69 |         if MAX_SEED as usize < 2 * r as usize {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/nano/solver.rs:550:20
[INFO] [stderr]     |
[INFO] [stderr] 550 |         .inspect(|(i, (s, energy))| {
[INFO] [stderr]     |                    ^ help: consider using `_i` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/nano/solver.rs:550:24
[INFO] [stderr]     |
[INFO] [stderr] 550 |         .inspect(|(i, (s, energy))| {
[INFO] [stderr]     |                        ^ help: consider using `_s` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `energy`
[INFO] [stderr]    --> src/nano/solver.rs:550:27
[INFO] [stderr]     |
[INFO] [stderr] 550 |         .inspect(|(i, (s, energy))| {
[INFO] [stderr]     |                           ^^^^^^ help: consider using `_energy` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/nano/solver.rs:553:27
[INFO] [stderr]     |
[INFO] [stderr] 553 |         .min_by_key(|(_, (s, c))| c.clone())
[INFO] [stderr]     |                           ^ help: consider using `_s` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `remaining` is assigned to, but never used
[INFO] [stderr]    --> src/nano/solver.rs:562:13
[INFO] [stderr]     |
[INFO] [stderr] 562 |     let mut remaining = matrix.len();
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_remaining` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `removed` is assigned to, but never used
[INFO] [stderr]    --> src/nano/solver.rs:563:13
[INFO] [stderr]     |
[INFO] [stderr] 563 |     let mut removed = 0;
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_removed` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `idx`
[INFO] [stderr]    --> src/nano/solver.rs:308:25
[INFO] [stderr]     |
[INFO] [stderr] 308 |                     for idx in bots {
[INFO] [stderr]     |                         ^^^ help: consider using `_idx` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/nano/solver.rs:550:20
[INFO] [stderr]     |
[INFO] [stderr] 550 |         .inspect(|(i, (s, energy))| {
[INFO] [stderr]     |                    ^ help: consider using `_i` instead
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/nano/solver.rs:550:24
[INFO] [stderr]     |
[INFO] [stderr] 550 |         .inspect(|(i, (s, energy))| {
[INFO] [stderr]     |                        ^ help: consider using `_s` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `energy`
[INFO] [stderr]    --> src/nano/solver.rs:550:27
[INFO] [stderr]     |
[INFO] [stderr] 550 |         .inspect(|(i, (s, energy))| {
[INFO] [stderr]     |                           ^^^^^^ help: consider using `_energy` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/nano/solver.rs:553:27
[INFO] [stderr]     |
[INFO] [stderr] 553 |         .min_by_key(|(_, (s, c))| c.clone())
[INFO] [stderr]     |                           ^ help: consider using `_s` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `remaining` is assigned to, but never used
[INFO] [stderr]    --> src/nano/solver.rs:562:13
[INFO] [stderr]     |
[INFO] [stderr] 562 |     let mut remaining = matrix.len();
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_remaining` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable `removed` is assigned to, but never used
[INFO] [stderr]    --> src/nano/solver.rs:563:13
[INFO] [stderr]     |
[INFO] [stderr] 563 |     let mut removed = 0;
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_removed` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `idx`
[INFO] [stderr]    --> src/nano/solver.rs:308:25
[INFO] [stderr]     |
[INFO] [stderr] 308 |                     for idx in bots {
[INFO] [stderr]     |                         ^^^ help: consider using `_idx` instead
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_grounded`
[INFO] [stderr]   --> src/nano/game.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn is_grounded(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `model_dst`
[INFO] [stderr]   --> src/nano/solver.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     model_dst: &'a Model,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_grounded`
[INFO] [stderr]   --> src/nano/game.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn is_grounded(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `model_dst`
[INFO] [stderr]   --> src/nano/solver.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     model_dst: &'a Model,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/nano/game.rs:288:24
[INFO] [stderr]     |
[INFO] [stderr] 288 |                     if b.seeds.len() == 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `b.seeds.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/nano/game.rs:288:24
[INFO] [stderr]     |
[INFO] [stderr] 288 |                     if b.seeds.len() == 0 {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `b.seeds.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/game.rs:400:34
[INFO] [stderr]     |
[INFO] [stderr] 400 |         self.state.energy += 2 * d.mlen() as u64;
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^ help: try: `u64::from(d.mlen())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/game.rs:407:35
[INFO] [stderr]     |
[INFO] [stderr] 407 |         self.state.energy += 2 * (d1.mlen() as u64 + 2 + d2.mlen() as u64);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^ help: try: `u64::from(d1.mlen())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/game.rs:407:58
[INFO] [stderr]     |
[INFO] [stderr] 407 |         self.state.energy += 2 * (d1.mlen() as u64 + 2 + d2.mlen() as u64);
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^ help: try: `u64::from(d2.mlen())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/nano/game.rs:436:30
[INFO] [stderr]     |
[INFO] [stderr] 436 |             seeds: bot.seeds[1..m as usize + 1].to_owned(),
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^ help: use: `1..=m as usize`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/nano/game.rs:499:15
[INFO] [stderr]     |
[INFO] [stderr] 499 |         bots: &'b Vec<Bot>,
[INFO] [stderr]     |               ^^^^^^^^^^^^ help: change this to: `&[Bot]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/nano/game.rs:509:26
[INFO] [stderr]     |
[INFO] [stderr] 509 |                         .or_insert(VecDeque::with_capacity(2))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| VecDeque::with_capacity(2))`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/nano/game.rs:522:26
[INFO] [stderr]     |
[INFO] [stderr] 522 |                         .or_insert(VecDeque::with_capacity(8))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| VecDeque::with_capacity(8))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/nano/game.rs:528:26
[INFO] [stderr]     |
[INFO] [stderr] 528 |                         .or_insert(VecDeque::with_capacity(2))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| VecDeque::with_capacity(2))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/game.rs:400:34
[INFO] [stderr]     |
[INFO] [stderr] 400 |         self.state.energy += 2 * d.mlen() as u64;
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^ help: try: `u64::from(d.mlen())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::cast_lossless)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/game.rs:576:36
[INFO] [stderr]     |
[INFO] [stderr] 576 |                     let (b1, t1) = group[0].clone();
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `group[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/game.rs:577:36
[INFO] [stderr]     |
[INFO] [stderr] 577 |                     let (b2, t2) = group[1].clone();
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `group[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/game.rs:407:35
[INFO] [stderr]     |
[INFO] [stderr] 407 |         self.state.energy += 2 * (d1.mlen() as u64 + 2 + d2.mlen() as u64);
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^^^ help: try: `u64::from(d1.mlen())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/game.rs:407:58
[INFO] [stderr]     |
[INFO] [stderr] 407 |         self.state.energy += 2 * (d1.mlen() as u64 + 2 + d2.mlen() as u64);
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^ help: try: `u64::from(d2.mlen())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/game.rs:590:36
[INFO] [stderr]     |
[INFO] [stderr] 590 |                     let (b1, t1) = group[0].clone();
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `group[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/game.rs:635:17
[INFO] [stderr]     |
[INFO] [stderr] 635 |         let r = self.resolution() as u64;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.resolution())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]    --> src/nano/game.rs:436:30
[INFO] [stderr]     |
[INFO] [stderr] 436 |             seeds: bot.seeds[1..m as usize + 1].to_owned(),
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^ help: use: `1..=m as usize`
[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 `nano::model::Matrix` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/nano/model.rs:17:1
[INFO] [stderr]     |
[INFO] [stderr] 17  | / impl Matrix {
[INFO] [stderr] 18  | |     pub fn new(r: u8) -> Matrix {
[INFO] [stderr] 19  | |         let rb = r as usize;
[INFO] [stderr] 20  | |         let n = floor(rb * rb * rb, 8);
[INFO] [stderr] ...   |
[INFO] [stderr] 129 | |     }
[INFO] [stderr] 130 | | }
[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: the loop variable `i` is only used to index `buffer`.
[INFO] [stderr]   --> src/nano/model.rs:45:18
[INFO] [stderr]    |
[INFO] [stderr] 45 |         for i in 0..n {
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 45 |         for <item> in buffer.iter_mut().take(n) {
[INFO] [stderr]    |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: The function/method `<BitSet>::from_bytes` doesn't need a mutable reference
[INFO] [stderr]   --> src/nano/model.rs:48:39
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let bits = BitSet::from_bytes(&mut buffer);
[INFO] [stderr]    |                                       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_mut_passed)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr] warning: item `nano::model::Model` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/nano/model.rs:132:1
[INFO] [stderr]     |
[INFO] [stderr] 132 | / impl Model {
[INFO] [stderr] 133 | |     pub fn new(r: u8) -> Model {
[INFO] [stderr] 134 | |         Model(Matrix::new(r))
[INFO] [stderr] 135 | |     }
[INFO] [stderr] ...   |
[INFO] [stderr] 177 | |     }
[INFO] [stderr] 178 | | }
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/nano/game.rs:499:15
[INFO] [stderr]     |
[INFO] [stderr] 499 |         bots: &'b Vec<Bot>,
[INFO] [stderr]     |               ^^^^^^^^^^^^ help: change this to: `&[Bot]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::ptr_arg)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/nano/game.rs:509:26
[INFO] [stderr]     |
[INFO] [stderr] 509 |                         .or_insert(VecDeque::with_capacity(2))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| VecDeque::with_capacity(2))`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/nano/game.rs:522:26
[INFO] [stderr]     |
[INFO] [stderr] 522 |                         .or_insert(VecDeque::with_capacity(8))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| VecDeque::with_capacity(8))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `or_insert` followed by a function call
[INFO] [stderr]    --> src/nano/game.rs:528:26
[INFO] [stderr]     |
[INFO] [stderr] 528 |                         .or_insert(VecDeque::with_capacity(2))
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_insert_with(|| VecDeque::with_capacity(2))`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let r = r as i16;
[INFO] [stderr]    |                 ^^^^^^^^ help: try: `i16::from(r)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let x = (self.x as i16) + (rhs.dx as i16);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^ help: try: `i16::from(self.x)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:16:35
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let x = (self.x as i16) + (rhs.dx as i16);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^ help: try: `i16::from(rhs.dx)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let y = (self.y as i16) + (rhs.dy as i16);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^ help: try: `i16::from(self.y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:17:35
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let y = (self.y as i16) + (rhs.dy as i16);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^ help: try: `i16::from(rhs.dy)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let z = (self.z as i16) + (rhs.dz as i16);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^ help: try: `i16::from(self.z)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:18:35
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let z = (self.z as i16) + (rhs.dz as i16);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^ help: try: `i16::from(rhs.dz)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let dx = (self.x as i16) - (rhs.x as i16);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^ help: try: `i16::from(self.x)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:31:36
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let dx = (self.x as i16) - (rhs.x as i16);
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^ help: try: `i16::from(rhs.x)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:32:18
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let dy = (self.y as i16) - (rhs.y as i16);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^ help: try: `i16::from(self.y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:32:36
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let dy = (self.y as i16) - (rhs.y as i16);
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^ help: try: `i16::from(rhs.y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:33:18
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let dz = (self.z as i16) - (rhs.z as i16);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^ help: try: `i16::from(self.z)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:33:36
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let dz = (self.z as i16) - (rhs.z as i16);
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^ help: try: `i16::from(rhs.z)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/nano/point.rs:45:18
[INFO] [stderr]    |
[INFO] [stderr] 45 |         for x in lx..rx + 1 {
[INFO] [stderr]    |                  ^^^^^^^^^^ help: use: `lx..=rx`
[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: an inclusive range would be more readable
[INFO] [stderr]   --> src/nano/point.rs:46:22
[INFO] [stderr]    |
[INFO] [stderr] 46 |             for y in ly..ry + 1 {
[INFO] [stderr]    |                      ^^^^^^^^^^ help: use: `ly..=ry`
[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: an inclusive range would be more readable
[INFO] [stderr]   --> src/nano/point.rs:47:26
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 for z in lz..rz + 1 {
[INFO] [stderr]    |                          ^^^^^^^^^^ help: use: `lz..=rz`
[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: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:116:17
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn mlen(&self) -> u8 {
[INFO] [stderr]     |                 ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:120:17
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn clen(&self) -> u8 {
[INFO] [stderr]     |                 ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `nd`
[INFO] [stderr]    --> src/nano/point.rs:134:19
[INFO] [stderr]     |
[INFO] [stderr] 134 |         let dz = ((nd / 1) % 3) as i8 - 1;
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:146:32
[INFO] [stderr]     |
[INFO] [stderr] 146 |     pub fn encode_short_linear(&self) -> (u8, u8) {
[INFO] [stderr]     |                                ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:149:31
[INFO] [stderr]     |
[INFO] [stderr] 149 |     pub fn encode_long_linear(&self) -> (u8, u8) {
[INFO] [stderr]     |                               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:153:24
[INFO] [stderr]     |
[INFO] [stderr] 153 |     pub fn encode_near(&self) -> u8 {
[INFO] [stderr]     |                        ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:158:23
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn encode_far(&self) -> (u8, u8, u8) {
[INFO] [stderr]     |                       ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:189:22
[INFO] [stderr]     |
[INFO] [stderr] 189 |     fn encode_linear(&self, size: u8) -> (u8, u8) {
[INFO] [stderr]     |                      ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:203:18
[INFO] [stderr]     |
[INFO] [stderr] 203 |     fn is_linear(&self, size: u8) -> bool {
[INFO] [stderr]     |                  ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/game.rs:576:36
[INFO] [stderr]     |
[INFO] [stderr] 576 |                     let (b1, t1) = group[0].clone();
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `group[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::clone_on_copy)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/game.rs:577:36
[INFO] [stderr]     |
[INFO] [stderr] 577 |                     let (b2, t2) = group[1].clone();
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `group[1]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:215:27
[INFO] [stderr]     |
[INFO] [stderr] 215 |     pub fn is_long_linear(&self) -> bool {
[INFO] [stderr]     |                           ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:219:28
[INFO] [stderr]     |
[INFO] [stderr] 219 |     pub fn is_short_linear(&self) -> bool {
[INFO] [stderr]     |                            ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:223:20
[INFO] [stderr]     |
[INFO] [stderr] 223 |     pub fn is_near(&self) -> bool {
[INFO] [stderr]     |                    ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:227:19
[INFO] [stderr]     |
[INFO] [stderr] 227 |     pub fn is_far(&self) -> bool {
[INFO] [stderr]     |                   ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/game.rs:590:36
[INFO] [stderr]     |
[INFO] [stderr] 590 |                     let (b1, t1) = group[0].clone();
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^ help: try removing the `clone` call: `group[0]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/game.rs:635:17
[INFO] [stderr]     |
[INFO] [stderr] 635 |         let r = self.resolution() as u64;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.resolution())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/nano/trace.rs:29:28
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn volatile_points(&self, c: Pn, r: u8) -> Result<Vec<Pn>> {
[INFO] [stderr]    |                            ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:35:38
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 let t = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:39:39
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 let m = c.add(*d1, r).ok_or(invalid_coord_msg(c, *d1))?;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d1))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:40:39
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 let t = m.add(*d2, r).ok_or(invalid_coord_msg(m, *d2))?;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(m, *d2))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:46:38
[INFO] [stderr]    |
[INFO] [stderr] 46 |                 let t = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:50:38
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 let t = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:54:38
[INFO] [stderr]    |
[INFO] [stderr] 54 |                 let t = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:58:38
[INFO] [stderr]    |
[INFO] [stderr] 58 |                 let _ = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:62:38
[INFO] [stderr]    |
[INFO] [stderr] 62 |                 let _ = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:66:39
[INFO] [stderr]    |
[INFO] [stderr] 66 |                 let r1 = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:67:40
[INFO] [stderr]    |
[INFO] [stderr] 67 |                 let r2 = r1.add(*f, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:73:39
[INFO] [stderr]    |
[INFO] [stderr] 73 |                 let r1 = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:74:40
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 let r2 = r1.add(*f, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: item `nano::trace::Trace` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]   --> src/nano/trace.rs:86:1
[INFO] [stderr]    |
[INFO] [stderr] 86 | / impl Trace {
[INFO] [stderr] 87 | |     pub fn new(cmds: Vec<Command>) -> Trace {
[INFO] [stderr] 88 | |         Trace(cmds)
[INFO] [stderr] 89 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 96 | |     }
[INFO] [stderr] 97 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] warning: item `nano::model::Matrix` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/nano/model.rs:17:1
[INFO] [stderr]     |
[INFO] [stderr] 17  | / impl Matrix {
[INFO] [stderr] 18  | |     pub fn new(r: u8) -> Matrix {
[INFO] [stderr] 19  | |         let rb = r as usize;
[INFO] [stderr] 20  | |         let n = floor(rb * rb * rb, 8);
[INFO] [stderr] ...   |
[INFO] [stderr] 129 | |     }
[INFO] [stderr] 130 | | }
[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]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_without_is_empty
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `buffer`.
[INFO] [stderr]   --> src/nano/model.rs:45:18
[INFO] [stderr]    |
[INFO] [stderr] 45 |         for i in 0..n {
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 45 |         for <item> in buffer.iter_mut().take(n) {
[INFO] [stderr]    |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: The function/method `<BitSet>::from_bytes` doesn't need a mutable reference
[INFO] [stderr]   --> src/nano/model.rs:48:39
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let bits = BitSet::from_bytes(&mut buffer);
[INFO] [stderr]    |                                       ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_mut_passed)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/nano/trace.rs:146:21
[INFO] [stderr]     |
[INFO] [stderr] 146 |                     w.write(&[(nd << 3) | 0b001])?;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/nano/trace.rs:152:21
[INFO] [stderr]     |
[INFO] [stderr] 152 |                     w.write(&[(nd << 3) | 0b000])?;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `(nd << 3)`
[INFO] [stderr]    --> src/nano/trace.rs:152:31
[INFO] [stderr]     |
[INFO] [stderr] 152 |                     w.write(&[(nd << 3) | 0b000])?;
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: item `nano::model::Model` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]    --> src/nano/model.rs:132:1
[INFO] [stderr]     |
[INFO] [stderr] 132 | / impl Model {
[INFO] [stderr] 133 | |     pub fn new(r: u8) -> Model {
[INFO] [stderr] 134 | |         Model(Matrix::new(r))
[INFO] [stderr] 135 | |     }
[INFO] [stderr] ...   |
[INFO] [stderr] 177 | |     }
[INFO] [stderr] 178 | | }
[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: manual implementation of an assign operation
[INFO] [stderr]   --> src/nano/util.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         result = result | ((byte >> i) & 1) << (8 - 1 - i);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `result |= ((byte >> i) & 1) << (8 - 1 - i)`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/nano/solver.rs:160:36
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn arrived_bots(&self, target: &Vec<Option<Pn>>) -> Vec<usize> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^ help: change this to: `&[Option<Pn>]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/nano/solver.rs:171:17
[INFO] [stderr]     |
[INFO] [stderr] 171 |         target: &Vec<Option<Pn>>,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^ help: change this to: `&[Option<Pn>]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let r = r as i16;
[INFO] [stderr]    |                 ^^^^^^^^ help: try: `i16::from(r)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let x = (self.x as i16) + (rhs.dx as i16);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^ help: try: `i16::from(self.x)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:16:35
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let x = (self.x as i16) + (rhs.dx as i16);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^ help: try: `i16::from(rhs.dx)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let y = (self.y as i16) + (rhs.dy as i16);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^ help: try: `i16::from(self.y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:17:35
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let y = (self.y as i16) + (rhs.dy as i16);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^ help: try: `i16::from(rhs.dy)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let z = (self.z as i16) + (rhs.dz as i16);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^ help: try: `i16::from(self.z)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:18:35
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let z = (self.z as i16) + (rhs.dz as i16);
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^ help: try: `i16::from(rhs.dz)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:31:18
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let dx = (self.x as i16) - (rhs.x as i16);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^ help: try: `i16::from(self.x)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:31:36
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let dx = (self.x as i16) - (rhs.x as i16);
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^ help: try: `i16::from(rhs.x)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:32:18
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let dy = (self.y as i16) - (rhs.y as i16);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^ help: try: `i16::from(self.y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:32:36
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let dy = (self.y as i16) - (rhs.y as i16);
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^ help: try: `i16::from(rhs.y)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `bots`
[INFO] [stderr]    --> src/nano/solver.rs:190:18
[INFO] [stderr]     |
[INFO] [stderr] 190 |         for i in 0..bots.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 190 |         for (i, <item>) in bots.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:33:18
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let dz = (self.z as i16) - (rhs.z as i16);
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^ help: try: `i16::from(self.z)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]   --> src/nano/point.rs:33:36
[INFO] [stderr]    |
[INFO] [stderr] 33 |         let dz = (self.z as i16) - (rhs.z as i16);
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^ help: try: `i16::from(rhs.z)`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/nano/point.rs:45:18
[INFO] [stderr]    |
[INFO] [stderr] 45 |         for x in lx..rx + 1 {
[INFO] [stderr]    |                  ^^^^^^^^^^ help: use: `lx..=rx`
[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: an inclusive range would be more readable
[INFO] [stderr]   --> src/nano/point.rs:46:22
[INFO] [stderr]    |
[INFO] [stderr] 46 |             for y in ly..ry + 1 {
[INFO] [stderr]    |                      ^^^^^^^^^^ help: use: `ly..=ry`
[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: an inclusive range would be more readable
[INFO] [stderr]   --> src/nano/point.rs:47:26
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 for z in lz..rz + 1 {
[INFO] [stderr]    |                          ^^^^^^^^^^ help: use: `lz..=rz`
[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: the loop variable `i` is only used to index `use_bots`.
[INFO] [stderr]    --> src/nano/solver.rs:271:26
[INFO] [stderr]     |
[INFO] [stderr] 271 |                 for i in 0..8 {
[INFO] [stderr]     |                          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 271 |                 for <item> in &mut use_bots {
[INFO] [stderr]     |                     ^^^^^^    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `s`
[INFO] [stderr]    --> src/nano/solver.rs:276:33
[INFO] [stderr]     |
[INFO] [stderr] 276 |                     let x = if ((s >> 0) & 1) == 1 {
[INFO] [stderr]     |                                 ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/solver.rs:312:43
[INFO] [stderr]     |
[INFO] [stderr] 312 |                         remove_list.push((bots.clone(), (fp.clone(), tp.clone())));
[INFO] [stderr]     |                                           ^^^^^^^^^^^^ help: try dereferencing it: `*bots`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/solver.rs:312:58
[INFO] [stderr]     |
[INFO] [stderr] 312 |                         remove_list.push((bots.clone(), (fp.clone(), tp.clone())));
[INFO] [stderr]     |                                                          ^^^^^^^^^^ help: try dereferencing it: `*fp`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/solver.rs:312:70
[INFO] [stderr]     |
[INFO] [stderr] 312 |                         remove_list.push((bots.clone(), (fp.clone(), tp.clone())));
[INFO] [stderr]     |                                                                      ^^^^^^^^^^ help: try dereferencing it: `*tp`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `s` is used to index `bots`
[INFO] [stderr]    --> src/nano/solver.rs:314:34
[INFO] [stderr]     |
[INFO] [stderr] 314 |                         for s in 0..8 {
[INFO] [stderr]     |                                  ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 314 |                         for (s, <item>) in bots.iter().enumerate().take(8) {
[INFO] [stderr]     |                             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:116:17
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn mlen(&self) -> u8 {
[INFO] [stderr]     |                 ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::trivially_copy_pass_by_ref)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:120:17
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn clen(&self) -> u8 {
[INFO] [stderr]     |                 ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `nd`
[INFO] [stderr]    --> src/nano/point.rs:134:19
[INFO] [stderr]     |
[INFO] [stderr] 134 |         let dz = ((nd / 1) % 3) as i8 - 1;
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:146:32
[INFO] [stderr]     |
[INFO] [stderr] 146 |     pub fn encode_short_linear(&self) -> (u8, u8) {
[INFO] [stderr]     |                                ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:149:31
[INFO] [stderr]     |
[INFO] [stderr] 149 |     pub fn encode_long_linear(&self) -> (u8, u8) {
[INFO] [stderr]     |                               ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:153:24
[INFO] [stderr]     |
[INFO] [stderr] 153 |     pub fn encode_near(&self) -> u8 {
[INFO] [stderr]     |                        ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:158:23
[INFO] [stderr]     |
[INFO] [stderr] 158 |     pub fn encode_far(&self) -> (u8, u8, u8) {
[INFO] [stderr]     |                       ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:483:22
[INFO] [stderr]     |
[INFO] [stderr] 483 |                 if ((f as i16 + d as i16 * k as i16) - t as i16).abs()
[INFO] [stderr]     |                      ^^^^^^^^ help: try: `i16::from(f)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:483:33
[INFO] [stderr]     |
[INFO] [stderr] 483 |                 if ((f as i16 + d as i16 * k as i16) - t as i16).abs()
[INFO] [stderr]     |                                 ^^^^^^^^ help: try: `i16::from(d)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:189:22
[INFO] [stderr]     |
[INFO] [stderr] 189 |     fn encode_linear(&self, size: u8) -> (u8, u8) {
[INFO] [stderr]     |                      ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:483:44
[INFO] [stderr]     |
[INFO] [stderr] 483 |                 if ((f as i16 + d as i16 * k as i16) - t as i16).abs()
[INFO] [stderr]     |                                            ^^^^^^^^ help: try: `i16::from(k)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:483:56
[INFO] [stderr]     |
[INFO] [stderr] 483 |                 if ((f as i16 + d as i16 * k as i16) - t as i16).abs()
[INFO] [stderr]     |                                                        ^^^^^^^^ help: try: `i16::from(t)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:484:25
[INFO] [stderr]     |
[INFO] [stderr] 484 |                     < ((f as i16 + d as i16 * (k + 1) as i16) - t as i16).abs()
[INFO] [stderr]     |                         ^^^^^^^^ help: try: `i16::from(f)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:484:36
[INFO] [stderr]     |
[INFO] [stderr] 484 |                     < ((f as i16 + d as i16 * (k + 1) as i16) - t as i16).abs()
[INFO] [stderr]     |                                    ^^^^^^^^ help: try: `i16::from(d)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:484:47
[INFO] [stderr]     |
[INFO] [stderr] 484 |                     < ((f as i16 + d as i16 * (k + 1) as i16) - t as i16).abs()
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^ help: try: `i16::from(k + 1)`
[INFO] [stderr]     |
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:203:18
[INFO] [stderr]     |
[INFO] [stderr] 203 |     fn is_linear(&self, size: u8) -> bool {
[INFO] [stderr]     |                  ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:484:65
[INFO] [stderr]     |
[INFO] [stderr] 484 |                     < ((f as i16 + d as i16 * (k + 1) as i16) - t as i16).abs()
[INFO] [stderr]     |                                                                 ^^^^^^^^ help: try: `i16::from(t)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:215:27
[INFO] [stderr]     |
[INFO] [stderr] 215 |     pub fn is_long_linear(&self) -> bool {
[INFO] [stderr]     |                           ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/nano/solver.rs:554:10
[INFO] [stderr]     |
[INFO] [stderr] 554 |         .ok_or("no solution found".into())
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| "no solution found".into())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/solver.rs:553:35
[INFO] [stderr]     |
[INFO] [stderr] 553 |         .min_by_key(|(_, (s, c))| c.clone())
[INFO] [stderr]     |                                   ^^^^^^^^^ help: try dereferencing it: `*c`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:577:25
[INFO] [stderr]     |
[INFO] [stderr] 577 |                         tx as i16 - fx as i16,
[INFO] [stderr]     |                         ^^^^^^^^^ help: try: `i16::from(tx)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:577:37
[INFO] [stderr]     |
[INFO] [stderr] 577 |                         tx as i16 - fx as i16,
[INFO] [stderr]     |                                     ^^^^^^^^^ help: try: `i16::from(fx)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:578:34
[INFO] [stderr]     |
[INFO] [stderr] 578 |                         cmp::min(ty as i16 - fy as i16, tz as i16 - fz as i16),
[INFO] [stderr]     |                                  ^^^^^^^^^ help: try: `i16::from(ty)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:578:46
[INFO] [stderr]     |
[INFO] [stderr] 578 |                         cmp::min(ty as i16 - fy as i16, tz as i16 - fz as i16),
[INFO] [stderr]     |                                              ^^^^^^^^^ help: try: `i16::from(fy)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:578:57
[INFO] [stderr]     |
[INFO] [stderr] 578 |                         cmp::min(ty as i16 - fy as i16, tz as i16 - fz as i16),
[INFO] [stderr]     |                                                         ^^^^^^^^^ help: try: `i16::from(tz)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:578:69
[INFO] [stderr]     |
[INFO] [stderr] 578 |                         cmp::min(ty as i16 - fy as i16, tz as i16 - fz as i16),
[INFO] [stderr]     |                                                                     ^^^^^^^^^ help: try: `i16::from(fz)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:219:28
[INFO] [stderr]     |
[INFO] [stderr] 219 |     pub fn is_short_linear(&self) -> bool {
[INFO] [stderr]     |                            ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:223:20
[INFO] [stderr]     |
[INFO] [stderr] 223 |     pub fn is_near(&self) -> bool {
[INFO] [stderr]     |                    ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/nano/point.rs:227:19
[INFO] [stderr]     |
[INFO] [stderr] 227 |     pub fn is_far(&self) -> bool {
[INFO] [stderr]     |                   ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `icfpc2018`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]   --> src/nano/trace.rs:29:28
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn volatile_points(&self, c: Pn, r: u8) -> Result<Vec<Pn>> {
[INFO] [stderr]    |                            ^^^^^ help: consider passing by value instead: `self`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:35:38
[INFO] [stderr]    |
[INFO] [stderr] 35 |                 let t = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:39:39
[INFO] [stderr]    |
[INFO] [stderr] 39 |                 let m = c.add(*d1, r).ok_or(invalid_coord_msg(c, *d1))?;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d1))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:40:39
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 let t = m.add(*d2, r).ok_or(invalid_coord_msg(m, *d2))?;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(m, *d2))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:46:38
[INFO] [stderr]    |
[INFO] [stderr] 46 |                 let t = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:50:38
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 let t = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:54:38
[INFO] [stderr]    |
[INFO] [stderr] 54 |                 let t = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:58:38
[INFO] [stderr]    |
[INFO] [stderr] 58 |                 let _ = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:62:38
[INFO] [stderr]    |
[INFO] [stderr] 62 |                 let _ = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:66:39
[INFO] [stderr]    |
[INFO] [stderr] 66 |                 let r1 = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:67:40
[INFO] [stderr]    |
[INFO] [stderr] 67 |                 let r2 = r1.add(*f, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:73:39
[INFO] [stderr]    |
[INFO] [stderr] 73 |                 let r1 = c.add(*d, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]   --> src/nano/trace.rs:74:40
[INFO] [stderr]    |
[INFO] [stderr] 74 |                 let r2 = r1.add(*f, r).ok_or(invalid_coord_msg(c, *d))?;
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| invalid_coord_msg(c, *d))`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: item `nano::trace::Trace` has a public `len` method but no corresponding `is_empty` method
[INFO] [stderr]   --> src/nano/trace.rs:86:1
[INFO] [stderr]    |
[INFO] [stderr] 86 | / impl Trace {
[INFO] [stderr] 87 | |     pub fn new(cmds: Vec<Command>) -> Trace {
[INFO] [stderr] 88 | |         Trace(cmds)
[INFO] [stderr] 89 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 96 | |     }
[INFO] [stderr] 97 | | }
[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] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/nano/trace.rs:146:21
[INFO] [stderr]     |
[INFO] [stderr] 146 |                     w.write(&[(nd << 3) | 0b001])?;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/nano/trace.rs:152:21
[INFO] [stderr]     |
[INFO] [stderr] 152 |                     w.write(&[(nd << 3) | 0b000])?;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `(nd << 3)`
[INFO] [stderr]    --> src/nano/trace.rs:152:31
[INFO] [stderr]     |
[INFO] [stderr] 152 |                     w.write(&[(nd << 3) | 0b000])?;
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/nano/util.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         result = result | ((byte >> i) & 1) << (8 - 1 - i);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `result |= ((byte >> i) & 1) << (8 - 1 - i)`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/nano/solver.rs:160:36
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn arrived_bots(&self, target: &Vec<Option<Pn>>) -> Vec<usize> {
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^ help: change this to: `&[Option<Pn>]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]    --> src/nano/solver.rs:171:17
[INFO] [stderr]     |
[INFO] [stderr] 171 |         target: &Vec<Option<Pn>>,
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^ help: change this to: `&[Option<Pn>]`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#ptr_arg
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is used to index `bots`
[INFO] [stderr]    --> src/nano/solver.rs:190:18
[INFO] [stderr]     |
[INFO] [stderr] 190 |         for i in 0..bots.len() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 190 |         for (i, <item>) in bots.iter().enumerate() {
[INFO] [stderr]     |             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `i` is only used to index `use_bots`.
[INFO] [stderr]    --> src/nano/solver.rs:271:26
[INFO] [stderr]     |
[INFO] [stderr] 271 |                 for i in 0..8 {
[INFO] [stderr]     |                          ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 271 |                 for <item> in &mut use_bots {
[INFO] [stderr]     |                     ^^^^^^    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `s`
[INFO] [stderr]    --> src/nano/solver.rs:276:33
[INFO] [stderr]     |
[INFO] [stderr] 276 |                     let x = if ((s >> 0) & 1) == 1 {
[INFO] [stderr]     |                                 ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/solver.rs:312:43
[INFO] [stderr]     |
[INFO] [stderr] 312 |                         remove_list.push((bots.clone(), (fp.clone(), tp.clone())));
[INFO] [stderr]     |                                           ^^^^^^^^^^^^ help: try dereferencing it: `*bots`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/solver.rs:312:58
[INFO] [stderr]     |
[INFO] [stderr] 312 |                         remove_list.push((bots.clone(), (fp.clone(), tp.clone())));
[INFO] [stderr]     |                                                          ^^^^^^^^^^ help: try dereferencing it: `*fp`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/solver.rs:312:70
[INFO] [stderr]     |
[INFO] [stderr] 312 |                         remove_list.push((bots.clone(), (fp.clone(), tp.clone())));
[INFO] [stderr]     |                                                                      ^^^^^^^^^^ help: try dereferencing it: `*tp`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `s` is used to index `bots`
[INFO] [stderr]    --> src/nano/solver.rs:314:34
[INFO] [stderr]     |
[INFO] [stderr] 314 |                         for s in 0..8 {
[INFO] [stderr]     |                                  ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]     |
[INFO] [stderr] 314 |                         for (s, <item>) in bots.iter().enumerate().take(8) {
[INFO] [stderr]     |                             ^^^^^^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:483:22
[INFO] [stderr]     |
[INFO] [stderr] 483 |                 if ((f as i16 + d as i16 * k as i16) - t as i16).abs()
[INFO] [stderr]     |                      ^^^^^^^^ help: try: `i16::from(f)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:483:33
[INFO] [stderr]     |
[INFO] [stderr] 483 |                 if ((f as i16 + d as i16 * k as i16) - t as i16).abs()
[INFO] [stderr]     |                                 ^^^^^^^^ help: try: `i16::from(d)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:483:44
[INFO] [stderr]     |
[INFO] [stderr] 483 |                 if ((f as i16 + d as i16 * k as i16) - t as i16).abs()
[INFO] [stderr]     |                                            ^^^^^^^^ help: try: `i16::from(k)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:483:56
[INFO] [stderr]     |
[INFO] [stderr] 483 |                 if ((f as i16 + d as i16 * k as i16) - t as i16).abs()
[INFO] [stderr]     |                                                        ^^^^^^^^ help: try: `i16::from(t)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:484:25
[INFO] [stderr]     |
[INFO] [stderr] 484 |                     < ((f as i16 + d as i16 * (k + 1) as i16) - t as i16).abs()
[INFO] [stderr]     |                         ^^^^^^^^ help: try: `i16::from(f)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:484:36
[INFO] [stderr]     |
[INFO] [stderr] 484 |                     < ((f as i16 + d as i16 * (k + 1) as i16) - t as i16).abs()
[INFO] [stderr]     |                                    ^^^^^^^^ help: try: `i16::from(d)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting i8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:484:47
[INFO] [stderr]     |
[INFO] [stderr] 484 |                     < ((f as i16 + d as i16 * (k + 1) as i16) - t as i16).abs()
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^ help: try: `i16::from(k + 1)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:484:65
[INFO] [stderr]     |
[INFO] [stderr] 484 |                     < ((f as i16 + d as i16 * (k + 1) as i16) - t as i16).abs()
[INFO] [stderr]     |                                                                 ^^^^^^^^ help: try: `i16::from(t)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: use of `ok_or` followed by a function call
[INFO] [stderr]    --> src/nano/solver.rs:554:10
[INFO] [stderr]     |
[INFO] [stderr] 554 |         .ok_or("no solution found".into())
[INFO] [stderr]     |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `ok_or_else(|| "no solution found".into())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr] warning: using `clone` on a `Copy` type
[INFO] [stderr]    --> src/nano/solver.rs:553:35
[INFO] [stderr]     |
[INFO] [stderr] 553 |         .min_by_key(|(_, (s, c))| c.clone())
[INFO] [stderr]     |                                   ^^^^^^^^^ help: try dereferencing it: `*c`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:577:25
[INFO] [stderr]     |
[INFO] [stderr] 577 |                         tx as i16 - fx as i16,
[INFO] [stderr]     |                         ^^^^^^^^^ help: try: `i16::from(tx)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:577:37
[INFO] [stderr]     |
[INFO] [stderr] 577 |                         tx as i16 - fx as i16,
[INFO] [stderr]     |                                     ^^^^^^^^^ help: try: `i16::from(fx)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:578:34
[INFO] [stderr]     |
[INFO] [stderr] 578 |                         cmp::min(ty as i16 - fy as i16, tz as i16 - fz as i16),
[INFO] [stderr]     |                                  ^^^^^^^^^ help: try: `i16::from(ty)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:578:46
[INFO] [stderr]     |
[INFO] [stderr] 578 |                         cmp::min(ty as i16 - fy as i16, tz as i16 - fz as i16),
[INFO] [stderr]     |                                              ^^^^^^^^^ help: try: `i16::from(fy)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:578:57
[INFO] [stderr]     |
[INFO] [stderr] 578 |                         cmp::min(ty as i16 - fy as i16, tz as i16 - fz as i16),
[INFO] [stderr]     |                                                         ^^^^^^^^^ help: try: `i16::from(tz)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to i16 may become silently lossy if types change
[INFO] [stderr]    --> src/nano/solver.rs:578:69
[INFO] [stderr]     |
[INFO] [stderr] 578 |                         cmp::min(ty as i16 - fy as i16, tz as i16 - fz as i16),
[INFO] [stderr]     |                                                                     ^^^^^^^^^ help: try: `i16::from(fz)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `icfpc2018`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c1a5c482acbd997ff783d08b4dfbad827bcd7fa7549713667280db6ba7719783"`
[INFO] running `"docker" "rm" "-f" "c1a5c482acbd997ff783d08b4dfbad827bcd7fa7549713667280db6ba7719783"`
[INFO] [stdout] c1a5c482acbd997ff783d08b4dfbad827bcd7fa7549713667280db6ba7719783