[INFO] crate piston-binpool 0.1.0 is already in cache
[INFO] extracting crate piston-binpool 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/piston-binpool/0.1.0
[INFO] extracting crate piston-binpool 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/piston-binpool/0.1.0
[INFO] validating manifest of piston-binpool-0.1.0 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of piston-binpool-0.1.0 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing piston-binpool-0.1.0
[INFO] finished frobbing piston-binpool-0.1.0
[INFO] frobbed toml for piston-binpool-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/piston-binpool/0.1.0/Cargo.toml
[INFO] started frobbing piston-binpool-0.1.0
[INFO] finished frobbing piston-binpool-0.1.0
[INFO] frobbed toml for piston-binpool-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/piston-binpool/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting piston-binpool-0.1.0 against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/piston-binpool/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dclippy::into_iter_on_array" "-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] 7d0f49302181f74eec52727dedf5bb160e62101ee5422c8bb58a4929170b1773
[INFO] running `"docker" "start" "-a" "7d0f49302181f74eec52727dedf5bb160e62101ee5422c8bb58a4929170b1773"`
[INFO] [stderr]     Checking piston-binpool v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/read_write.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |         return Err(io::ErrorKind::InvalidData.into())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(io::ErrorKind::InvalidData.into())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/read_write.rs:165:9
[INFO] [stderr]     |
[INFO] [stderr] 165 |         return Err(io::ErrorKind::InvalidData.into())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(io::ErrorKind::InvalidData.into())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/read_write.rs:350:9
[INFO] [stderr]     |
[INFO] [stderr] 350 |         return Err(io::ErrorKind::InvalidData.into())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(io::ErrorKind::InvalidData.into())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/read_write.rs:393:9
[INFO] [stderr]     |
[INFO] [stderr] 393 |         return Err(io::ErrorKind::InvalidData.into())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(io::ErrorKind::InvalidData.into())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/read_write.rs:492:9
[INFO] [stderr]     |
[INFO] [stderr] 492 |         return Err(io::ErrorKind::InvalidData.into())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(io::ErrorKind::InvalidData.into())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/read_write.rs:530:9
[INFO] [stderr]     |
[INFO] [stderr] 530 |         return Err(io::ErrorKind::InvalidData.into())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(io::ErrorKind::InvalidData.into())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/read_write.rs:120:9
[INFO] [stderr]     |
[INFO] [stderr] 120 |         return Err(io::ErrorKind::InvalidData.into())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(io::ErrorKind::InvalidData.into())`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/read_write.rs:165:9
[INFO] [stderr]     |
[INFO] [stderr] 165 |         return Err(io::ErrorKind::InvalidData.into())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(io::ErrorKind::InvalidData.into())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/read_write.rs:350:9
[INFO] [stderr]     |
[INFO] [stderr] 350 |         return Err(io::ErrorKind::InvalidData.into())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(io::ErrorKind::InvalidData.into())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/read_write.rs:393:9
[INFO] [stderr]     |
[INFO] [stderr] 393 |         return Err(io::ErrorKind::InvalidData.into())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(io::ErrorKind::InvalidData.into())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/read_write.rs:492:9
[INFO] [stderr]     |
[INFO] [stderr] 492 |         return Err(io::ErrorKind::InvalidData.into())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(io::ErrorKind::InvalidData.into())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]    --> src/read_write.rs:530:9
[INFO] [stderr]     |
[INFO] [stderr] 530 |         return Err(io::ErrorKind::InvalidData.into())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `Err(io::ErrorKind::InvalidData.into())`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Array` has a `len` method but no (possibly inherited) `is_empty` method
[INFO] [stderr]   --> src/read_write.rs:8:1
[INFO] [stderr]    |
[INFO] [stderr] 8  | / pub trait Array {
[INFO] [stderr] 9  | |     /// The type of item.
[INFO] [stderr] 10 | |     type Item;
[INFO] [stderr] 11 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |     fn push(&mut self, val: Self::Item);
[INFO] [stderr] 20 | | }
[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: trait `Array` has a `len` method but no (possibly inherited) `is_empty` method
[INFO] [stderr]   --> src/read_write.rs:8:1
[INFO] [stderr]    |
[INFO] [stderr] 8  | / pub trait Array {
[INFO] [stderr] 9  | |     /// The type of item.
[INFO] [stderr] 10 | |     type Item;
[INFO] [stderr] 11 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 19 | |     fn push(&mut self, val: Self::Item);
[INFO] [stderr] 20 | | }
[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: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:558:30
[INFO] [stderr]     |
[INFO] [stderr] 558 |         *self = u16::from_le(buf[0] as u16 | (buf[1] as u16) << 8);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^ help: try: `u16::from(buf[0])`
[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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:558:46
[INFO] [stderr]     |
[INFO] [stderr] 558 |         *self = u16::from_le(buf[0] as u16 | (buf[1] as u16) << 8);
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^ help: try: `u16::from(buf[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 u32 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:574:13
[INFO] [stderr]     |
[INFO] [stderr] 574 |             buf[0] as u32 | (buf[1] as u32) << 8 |
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `u32::from(buf[0])`
[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 u32 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:574:29
[INFO] [stderr]     |
[INFO] [stderr] 574 |             buf[0] as u32 | (buf[1] as u32) << 8 |
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[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 u32 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:575:13
[INFO] [stderr]     |
[INFO] [stderr] 575 |             (buf[2] as u32) << 16 | (buf[3] as u32) << 24
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[2])`
[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 u32 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:575:37
[INFO] [stderr]     |
[INFO] [stderr] 575 |             (buf[2] as u32) << 16 | (buf[3] as u32) << 24
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[3])`
[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/read_write.rs:595:13
[INFO] [stderr]     |
[INFO] [stderr] 595 |             buf[0] as u64 | (buf[1] as u64) << 8 |
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `u64::from(buf[0])`
[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/read_write.rs:595:29
[INFO] [stderr]     |
[INFO] [stderr] 595 |             buf[0] as u64 | (buf[1] as u64) << 8 |
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[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 u64 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:596:13
[INFO] [stderr]     |
[INFO] [stderr] 596 |             (buf[2] as u64) << 16 | (buf[3] as u64) << 24 |
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[2])`
[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/read_write.rs:596:37
[INFO] [stderr]     |
[INFO] [stderr] 596 |             (buf[2] as u64) << 16 | (buf[3] as u64) << 24 |
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[3])`
[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/read_write.rs:597:13
[INFO] [stderr]     |
[INFO] [stderr] 597 |             (buf[4] as u64) << 32 | (buf[5] as u64) << 40 |
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[4])`
[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/read_write.rs:597:37
[INFO] [stderr]     |
[INFO] [stderr] 597 |             (buf[4] as u64) << 32 | (buf[5] as u64) << 40 |
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[5])`
[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/read_write.rs:598:13
[INFO] [stderr]     |
[INFO] [stderr] 598 |             (buf[6] as u64) << 48 | (buf[7] as u64) << 56
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[6])`
[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/read_write.rs:598:37
[INFO] [stderr]     |
[INFO] [stderr] 598 |             (buf[6] as u64) << 48 | (buf[7] as u64) << 56
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[7])`
[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: transmute from a reference to a reference
[INFO] [stderr]    --> src/read_write.rs:666:17
[INFO] [stderr]     |
[INFO] [stderr] 666 |         unsafe {transmute::<&f32, &u32>(self)}.write(w)
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(self as *const f32 as *const u32)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::transmute_ptr_to_ptr)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a `u32` to a `f32`
[INFO] [stderr]    --> src/read_write.rs:673:25
[INFO] [stderr]     |
[INFO] [stderr] 673 |         *self = unsafe {transmute::<u32, f32>(val)};
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f32::from_bits(val)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::transmute_int_to_float)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a reference to a reference
[INFO] [stderr]    --> src/read_write.rs:684:17
[INFO] [stderr]     |
[INFO] [stderr] 684 |         unsafe {transmute::<&f64, &u64>(self)}.write(w)
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(self as *const f64 as *const u64)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a `u64` to a `f64`
[INFO] [stderr]    --> src/read_write.rs:691:25
[INFO] [stderr]     |
[INFO] [stderr] 691 |         *self = unsafe {transmute::<u64, f64>(val)};
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f64::from_bits(val)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:138:20
[INFO] [stderr]     |
[INFO] [stderr] 138 |     pub fn type_id(&self) -> u16 {
[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/lib.rs:154:22
[INFO] [stderr]     |
[INFO] [stderr] 154 |     pub fn type_size(&self) -> u64 {
[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/lib.rs:175:19
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub fn matrix(&self, rows: u8, cols: u8) -> Option<(u16, u64)> {
[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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:176:38
[INFO] [stderr]     |
[INFO] [stderr] 176 |         if cols == 0 || rows == 0 || cols as u16 > SIZE || rows as u16 > SIZE {
[INFO] [stderr]     |                                      ^^^^^^^^^^^ help: try: `u16::from(cols)`
[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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:176:60
[INFO] [stderr]     |
[INFO] [stderr] 176 |         if cols == 0 || rows == 0 || cols as u16 > SIZE || rows as u16 > SIZE {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^ help: try: `u16::from(rows)`
[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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:181:17
[INFO] [stderr]     |
[INFO] [stderr] 181 |                 ((rows-1) as u16) * SIZE + ((cols-1) as u16),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^ help: try: `u16::from(rows-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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:181:44
[INFO] [stderr]     |
[INFO] [stderr] 181 |                 ((rows-1) as u16) * SIZE + ((cols-1) as u16),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^ help: try: `u16::from(cols-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 u64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:182:36
[INFO] [stderr]     |
[INFO] [stderr] 182 |                 self.type_size() * cols as u64 * rows as u64
[INFO] [stderr]     |                                    ^^^^^^^^^^^ help: try: `u64::from(cols)`
[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/lib.rs:182:50
[INFO] [stderr]     |
[INFO] [stderr] 182 |                 self.type_size() * cols as u64 * rows as u64
[INFO] [stderr]     |                                                  ^^^^^^^^^^^ help: try: `u64::from(rows)`
[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/lib.rs:188:19
[INFO] [stderr]     |
[INFO] [stderr] 188 |     pub fn scalar(&self) -> (u16, u64) {
[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/lib.rs:196:19
[INFO] [stderr]     |
[INFO] [stderr] 196 |     pub fn vector(&self, dim: u8) -> Option<(u16, u64)> {
[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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:197:24
[INFO] [stderr]     |
[INFO] [stderr] 197 |         if dim == 0 || dim as u16 > SIZE {
[INFO] [stderr]     |                        ^^^^^^^^^^ help: try: `u16::from(dim)`
[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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:201:52
[INFO] [stderr]     |
[INFO] [stderr] 201 |                 1 + self.type_id() * SIZE * SIZE + (dim - 1) as u16,
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^ help: try: `u16::from(dim - 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 u64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:202:36
[INFO] [stderr]     |
[INFO] [stderr] 202 |                 self.type_size() * dim as u64
[INFO] [stderr]     |                                    ^^^^^^^^^^ help: try: `u64::from(dim)`
[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 u16 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:214:31
[INFO] [stderr]     |
[INFO] [stderr] 214 |         (((1 as u32) << 16) - Type::offset_custom_format() as u32) as u16
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(Type::offset_custom_format())`
[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: you should consider deriving a `Default` implementation for `State`
[INFO] [stderr]    --> src/lib.rs:260:5
[INFO] [stderr]     |
[INFO] [stderr] 260 | /     pub fn new() -> State {
[INFO] [stderr] 261 | |         State(PhantomData)
[INFO] [stderr] 262 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 256 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:423:9
[INFO] [stderr]     |
[INFO] [stderr] 423 |         w.write(data)?;
[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: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `piston-binpool`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:558:30
[INFO] [stderr]     |
[INFO] [stderr] 558 |         *self = u16::from_le(buf[0] as u16 | (buf[1] as u16) << 8);
[INFO] [stderr]     |                              ^^^^^^^^^^^^^ help: try: `u16::from(buf[0])`
[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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:558:46
[INFO] [stderr]     |
[INFO] [stderr] 558 |         *self = u16::from_le(buf[0] as u16 | (buf[1] as u16) << 8);
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^ help: try: `u16::from(buf[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 u32 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:574:13
[INFO] [stderr]     |
[INFO] [stderr] 574 |             buf[0] as u32 | (buf[1] as u32) << 8 |
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `u32::from(buf[0])`
[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 u32 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:574:29
[INFO] [stderr]     |
[INFO] [stderr] 574 |             buf[0] as u32 | (buf[1] as u32) << 8 |
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[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 u32 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:575:13
[INFO] [stderr]     |
[INFO] [stderr] 575 |             (buf[2] as u32) << 16 | (buf[3] as u32) << 24
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[2])`
[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 u32 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:575:37
[INFO] [stderr]     |
[INFO] [stderr] 575 |             (buf[2] as u32) << 16 | (buf[3] as u32) << 24
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^ help: try: `u32::from(buf[3])`
[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/read_write.rs:595:13
[INFO] [stderr]     |
[INFO] [stderr] 595 |             buf[0] as u64 | (buf[1] as u64) << 8 |
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: try: `u64::from(buf[0])`
[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/read_write.rs:595:29
[INFO] [stderr]     |
[INFO] [stderr] 595 |             buf[0] as u64 | (buf[1] as u64) << 8 |
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[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 u64 may become silently lossy if types change
[INFO] [stderr]    --> src/read_write.rs:596:13
[INFO] [stderr]     |
[INFO] [stderr] 596 |             (buf[2] as u64) << 16 | (buf[3] as u64) << 24 |
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[2])`
[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/read_write.rs:596:37
[INFO] [stderr]     |
[INFO] [stderr] 596 |             (buf[2] as u64) << 16 | (buf[3] as u64) << 24 |
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[3])`
[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/read_write.rs:597:13
[INFO] [stderr]     |
[INFO] [stderr] 597 |             (buf[4] as u64) << 32 | (buf[5] as u64) << 40 |
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[4])`
[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/read_write.rs:597:37
[INFO] [stderr]     |
[INFO] [stderr] 597 |             (buf[4] as u64) << 32 | (buf[5] as u64) << 40 |
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[5])`
[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/read_write.rs:598:13
[INFO] [stderr]     |
[INFO] [stderr] 598 |             (buf[6] as u64) << 48 | (buf[7] as u64) << 56
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[6])`
[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/read_write.rs:598:37
[INFO] [stderr]     |
[INFO] [stderr] 598 |             (buf[6] as u64) << 48 | (buf[7] as u64) << 56
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^ help: try: `u64::from(buf[7])`
[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: transmute from a reference to a reference
[INFO] [stderr]    --> src/read_write.rs:666:17
[INFO] [stderr]     |
[INFO] [stderr] 666 |         unsafe {transmute::<&f32, &u32>(self)}.write(w)
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(self as *const f32 as *const u32)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::transmute_ptr_to_ptr)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a `u32` to a `f32`
[INFO] [stderr]    --> src/read_write.rs:673:25
[INFO] [stderr]     |
[INFO] [stderr] 673 |         *self = unsafe {transmute::<u32, f32>(val)};
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f32::from_bits(val)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::transmute_int_to_float)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a reference to a reference
[INFO] [stderr]    --> src/read_write.rs:684:17
[INFO] [stderr]     |
[INFO] [stderr] 684 |         unsafe {transmute::<&f64, &u64>(self)}.write(w)
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&*(self as *const f64 as *const u64)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_ptr_to_ptr
[INFO] [stderr] 
[INFO] [stderr] warning: transmute from a `u64` to a `f64`
[INFO] [stderr]    --> src/read_write.rs:691:25
[INFO] [stderr]     |
[INFO] [stderr] 691 |         *self = unsafe {transmute::<u64, f64>(val)};
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using: `f64::from_bits(val)`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#transmute_int_to_float
[INFO] [stderr] 
[INFO] [stderr] warning: this argument is passed by reference, but would be more efficient if passed by value
[INFO] [stderr]    --> src/lib.rs:138:20
[INFO] [stderr]     |
[INFO] [stderr] 138 |     pub fn type_id(&self) -> u16 {
[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/lib.rs:154:22
[INFO] [stderr]     |
[INFO] [stderr] 154 |     pub fn type_size(&self) -> u64 {
[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/lib.rs:175:19
[INFO] [stderr]     |
[INFO] [stderr] 175 |     pub fn matrix(&self, rows: u8, cols: u8) -> Option<(u16, u64)> {
[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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:176:38
[INFO] [stderr]     |
[INFO] [stderr] 176 |         if cols == 0 || rows == 0 || cols as u16 > SIZE || rows as u16 > SIZE {
[INFO] [stderr]     |                                      ^^^^^^^^^^^ help: try: `u16::from(cols)`
[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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:176:60
[INFO] [stderr]     |
[INFO] [stderr] 176 |         if cols == 0 || rows == 0 || cols as u16 > SIZE || rows as u16 > SIZE {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^ help: try: `u16::from(rows)`
[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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:181:17
[INFO] [stderr]     |
[INFO] [stderr] 181 |                 ((rows-1) as u16) * SIZE + ((cols-1) as u16),
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^ help: try: `u16::from(rows-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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:181:44
[INFO] [stderr]     |
[INFO] [stderr] 181 |                 ((rows-1) as u16) * SIZE + ((cols-1) as u16),
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^ help: try: `u16::from(cols-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 u64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:182:36
[INFO] [stderr]     |
[INFO] [stderr] 182 |                 self.type_size() * cols as u64 * rows as u64
[INFO] [stderr]     |                                    ^^^^^^^^^^^ help: try: `u64::from(cols)`
[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/lib.rs:182:50
[INFO] [stderr]     |
[INFO] [stderr] 182 |                 self.type_size() * cols as u64 * rows as u64
[INFO] [stderr]     |                                                  ^^^^^^^^^^^ help: try: `u64::from(rows)`
[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/lib.rs:188:19
[INFO] [stderr]     |
[INFO] [stderr] 188 |     pub fn scalar(&self) -> (u16, u64) {
[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/lib.rs:196:19
[INFO] [stderr]     |
[INFO] [stderr] 196 |     pub fn vector(&self, dim: u8) -> Option<(u16, u64)> {
[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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:197:24
[INFO] [stderr]     |
[INFO] [stderr] 197 |         if dim == 0 || dim as u16 > SIZE {
[INFO] [stderr]     |                        ^^^^^^^^^^ help: try: `u16::from(dim)`
[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 u16 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:201:52
[INFO] [stderr]     |
[INFO] [stderr] 201 |                 1 + self.type_id() * SIZE * SIZE + (dim - 1) as u16,
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^ help: try: `u16::from(dim - 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 u64 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:202:36
[INFO] [stderr]     |
[INFO] [stderr] 202 |                 self.type_size() * dim as u64
[INFO] [stderr]     |                                    ^^^^^^^^^^ help: try: `u64::from(dim)`
[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 u16 to u32 may become silently lossy if types change
[INFO] [stderr]    --> src/lib.rs:214:31
[INFO] [stderr]     |
[INFO] [stderr] 214 |         (((1 as u32) << 16) - Type::offset_custom_format() as u32) as u16
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(Type::offset_custom_format())`
[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: you should consider deriving a `Default` implementation for `State`
[INFO] [stderr]    --> src/lib.rs:260:5
[INFO] [stderr]     |
[INFO] [stderr] 260 | /     pub fn new() -> State {
[INFO] [stderr] 261 | |         State(PhantomData)
[INFO] [stderr] 262 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::new_without_default_derive)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default_derive
[INFO] [stderr] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 256 | #[derive(Default)]
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]    --> src/lib.rs:423:9
[INFO] [stderr]     |
[INFO] [stderr] 423 |         w.write(data)?;
[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: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `piston-binpool`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7d0f49302181f74eec52727dedf5bb160e62101ee5422c8bb58a4929170b1773"`
[INFO] running `"docker" "rm" "-f" "7d0f49302181f74eec52727dedf5bb160e62101ee5422c8bb58a4929170b1773"`
[INFO] [stdout] 7d0f49302181f74eec52727dedf5bb160e62101ee5422c8bb58a4929170b1773