[INFO] crate vtf 0.1.1 is already in cache
[INFO] extracting crate vtf 0.1.1 into work/ex/clippy-test-run/sources/stable/reg/vtf/0.1.1
[INFO] extracting crate vtf 0.1.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/vtf/0.1.1
[INFO] validating manifest of vtf-0.1.1 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vtf-0.1.1 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vtf-0.1.1
[INFO] finished frobbing vtf-0.1.1
[INFO] frobbed toml for vtf-0.1.1 written to work/ex/clippy-test-run/sources/stable/reg/vtf/0.1.1/Cargo.toml
[INFO] started frobbing vtf-0.1.1
[INFO] finished frobbing vtf-0.1.1
[INFO] frobbed toml for vtf-0.1.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/vtf/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting vtf-0.1.1 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/vtf/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 043d97de491a766b3b7a172e9f2bd5f3fe6c5db67df8e82146d1945d35c04193
[INFO] running `"docker" "start" "-a" "043d97de491a766b3b7a172e9f2bd5f3fe6c5db67df8e82146d1945d35c04193"`
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking vtf v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::iter::Iterator`
[INFO] [stderr]  --> src/vtf.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::iter::Iterator;
[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/vtf.rs:10:28
[INFO] [stderr]    |
[INFO] [stderr] 10 | const VTF_SIGNATURE: u32 = 0x00465456;
[INFO] [stderr]    |                            ^^^^^^^^^^ help: consider: `0x0046_5456`
[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: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]   --> src/vtf.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         assert_eq!(header.signature, VTF_SIGNATURE, "Specified data is not VTF file");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(safe_packed_borrows)] on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]    = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]   --> src/vtf.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 |             header.lowres_image_width as u16,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(header.lowres_image_width)`
[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/vtf.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |             header.lowres_image_height as u16,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(header.lowres_image_height)`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/image.rs:16:88
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new(header: VTFHeader, format: ImageFormat, width: u16, height: u16, bytes: &'a Vec<u8>) -> VTFImage<'a> {
[INFO] [stderr]    |                                                                                        ^^^^^^^^^^^ help: change this to: `&[u8]`
[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: casting u16 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/image.rs:27:49
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let frame_size = self.format.frame_size(self.width as u32, self.height as u32) as usize;
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^ help: try: `u32::from(self.width)`
[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/image.rs:27:68
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let frame_size = self.format.frame_size(self.width as u32, self.height as u32) as usize;
[INFO] [stderr]    |                                                                    ^^^^^^^^^^^^^^^^^^ help: try: `u32::from(self.height)`
[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 operation is ineffective. Consider reducing it to `width * height`
[INFO] [stderr]   --> src/image.rs:87:32
[INFO] [stderr]    |
[INFO] [stderr] 87 |             ImageFormat::I8 => width * height * 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: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]  --> src/utils.rs:7:28
[INFO] [stderr]   |
[INFO] [stderr] 7 |     for i in (mip_level+1..(header.mipmap_count) as i32).rev() {
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i32::from((header.mipmap_count))`
[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/utils.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 |     offset *= header.frames as u32;
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(header.frames)`
[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/utils.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 |     image_format.frame_size(mip_width as u32, mip_height as u32) * mip_depth as u32
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^ help: try: `u32::from(mip_width)`
[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/utils.rs:38:47
[INFO] [stderr]    |
[INFO] [stderr] 38 |     image_format.frame_size(mip_width as u32, mip_height as u32) * mip_depth as u32
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^ help: try: `u32::from(mip_height)`
[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/utils.rs:38:68
[INFO] [stderr]    |
[INFO] [stderr] 38 |     image_format.frame_size(mip_width as u32, mip_height as u32) * mip_depth as u32
[INFO] [stderr]    |                                                                    ^^^^^^^^^^^^^^^^ help: try: `u32::from(mip_depth)`
[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: unused import: `std::iter::Iterator`
[INFO] [stderr]  --> src/vtf.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::iter::Iterator;
[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/vtf.rs:10:28
[INFO] [stderr]    |
[INFO] [stderr] 10 | const VTF_SIGNATURE: u32 = 0x00465456;
[INFO] [stderr]    |                            ^^^^^^^^^^ help: consider: `0x0046_5456`
[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: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]   --> src/vtf.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         assert_eq!(header.signature, VTF_SIGNATURE, "Specified data is not VTF file");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(safe_packed_borrows)] on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]    = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: casting u8 to u16 may become silently lossy if types change
[INFO] [stderr]   --> src/vtf.rs:44:13
[INFO] [stderr]    |
[INFO] [stderr] 44 |             header.lowres_image_width as u16,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(header.lowres_image_width)`
[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/vtf.rs:45:13
[INFO] [stderr]    |
[INFO] [stderr] 45 |             header.lowres_image_height as u16,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u16::from(header.lowres_image_height)`
[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: writing `&Vec<_>` instead of `&[_]` involves one more reference and cannot be used with non-Vec-based slices.
[INFO] [stderr]   --> src/image.rs:16:88
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new(header: VTFHeader, format: ImageFormat, width: u16, height: u16, bytes: &'a Vec<u8>) -> VTFImage<'a> {
[INFO] [stderr]    |                                                                                        ^^^^^^^^^^^ help: change this to: `&[u8]`
[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: casting u16 to u32 may become silently lossy if types change
[INFO] [stderr]   --> src/image.rs:27:49
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let frame_size = self.format.frame_size(self.width as u32, self.height as u32) as usize;
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^^^^^^ help: try: `u32::from(self.width)`
[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/image.rs:27:68
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let frame_size = self.format.frame_size(self.width as u32, self.height as u32) as usize;
[INFO] [stderr]    |                                                                    ^^^^^^^^^^^^^^^^^^ help: try: `u32::from(self.height)`
[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 operation is ineffective. Consider reducing it to `width * height`
[INFO] [stderr]   --> src/image.rs:87:32
[INFO] [stderr]    |
[INFO] [stderr] 87 |             ImageFormat::I8 => width * height * 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: casting u8 to i32 may become silently lossy if types change
[INFO] [stderr]  --> src/utils.rs:7:28
[INFO] [stderr]   |
[INFO] [stderr] 7 |     for i in (mip_level+1..(header.mipmap_count) as i32).rev() {
[INFO] [stderr]   |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `i32::from((header.mipmap_count))`
[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/utils.rs:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 |     offset *= header.frames as u32;
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(header.frames)`
[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/utils.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 |     image_format.frame_size(mip_width as u32, mip_height as u32) * mip_depth as u32
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^ help: try: `u32::from(mip_width)`
[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/utils.rs:38:47
[INFO] [stderr]    |
[INFO] [stderr] 38 |     image_format.frame_size(mip_width as u32, mip_height as u32) * mip_depth as u32
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^ help: try: `u32::from(mip_height)`
[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/utils.rs:38:68
[INFO] [stderr]    |
[INFO] [stderr] 38 |     image_format.frame_size(mip_width as u32, mip_height as u32) * mip_depth as u32
[INFO] [stderr]    |                                                                    ^^^^^^^^^^^^^^^^ help: try: `u32::from(mip_depth)`
[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]   --> examples/png.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         vtf.highres_image.width as u32,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(vtf.highres_image.width)`
[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 u16 to u32 may become silently lossy if types change
[INFO] [stderr]   --> examples/png.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |         vtf.highres_image.height as u32,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(vtf.highres_image.height)`
[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]   --> examples/png.rs:40:17
[INFO] [stderr]    |
[INFO] [stderr] 40 |                 vtf.highres_image.width as u32,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(vtf.highres_image.width)`
[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]   --> examples/png.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 |                 vtf.highres_image.height as u32,
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u32::from(vtf.highres_image.height)`
[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]     Finished dev [unoptimized + debuginfo] target(s) in 20.84s
[INFO] running `"docker" "inspect" "043d97de491a766b3b7a172e9f2bd5f3fe6c5db67df8e82146d1945d35c04193"`
[INFO] running `"docker" "rm" "-f" "043d97de491a766b3b7a172e9f2bd5f3fe6c5db67df8e82146d1945d35c04193"`
[INFO] [stdout] 043d97de491a766b3b7a172e9f2bd5f3fe6c5db67df8e82146d1945d35c04193