Dec 19 17:45:04.847 INFO checking drojf/SpriteZip against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 17:45:04.847 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/drojf/SpriteZip:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 17:45:05.304 INFO [stdout] 4d2001711d099499f04753be1b49bfc822826ce246e23d33693965f78fd8ff9e
Dec 19 17:45:05.311 INFO running `"docker" "start" "-a" "4d2001711d099499f04753be1b49bfc822826ce246e23d33693965f78fd8ff9e"`
Dec 19 17:45:07.477 INFO [stderr]     Checking alloc-no-stdlib v1.3.0
Dec 19 17:45:07.500 INFO [stderr]     Checking miniz_oxide v0.1.3
Dec 19 17:45:07.500 INFO [stderr]     Checking number_prefix v0.2.8
Dec 19 17:45:07.500 INFO [stderr]    Compiling syn v0.14.2
Dec 19 17:45:07.500 INFO [stderr]     Checking regex v1.0.1
Dec 19 17:45:08.552 INFO [stderr]     Checking brotli-decompressor v1.3.1
Dec 19 17:45:14.332 INFO [stderr]     Checking brotli v2.5.0
Dec 19 17:45:22.030 INFO [stderr]    Compiling num-derive v0.2.2
Dec 19 17:45:22.031 INFO [stderr]    Compiling serde_derive v1.0.66
Dec 19 17:45:24.764 INFO [stderr]     Checking image v0.19.0
Dec 19 17:45:34.329 INFO [stderr]     Checking oxipng v1.0.4
Dec 19 17:45:41.820 INFO [stderr]     Checking spritezip v0.1.0 (/opt/crater/workdir)
Dec 19 17:45:43.144 INFO [stderr] warning: unused import: `Write`
Dec 19 17:45:43.144 INFO [stderr]  --> src/extract.rs:4:21
Dec 19 17:45:43.144 INFO [stderr]   |
Dec 19 17:45:43.144 INFO [stderr] 4 | use std::io::{Read, Write, SeekFrom, Seek};
Dec 19 17:45:43.144 INFO [stderr]   |                     ^^^^^
Dec 19 17:45:43.144 INFO [stderr]   |
Dec 19 17:45:43.144 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 17:45:43.144 INFO [stderr] 
Dec 19 17:45:43.144 INFO [stderr] warning: unused import: `std::default::Default`
Dec 19 17:45:43.144 INFO [stderr]  --> src/extract.rs:5:5
Dec 19 17:45:43.144 INFO [stderr]   |
Dec 19 17:45:43.144 INFO [stderr] 5 | use std::default::Default;
Dec 19 17:45:43.144 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.144 INFO [stderr] 
Dec 19 17:45:43.180 INFO [stderr] warning: unused import: `Write`
Dec 19 17:45:43.180 INFO [stderr]  --> src/extract.rs:4:21
Dec 19 17:45:43.180 INFO [stderr]   |
Dec 19 17:45:43.180 INFO [stderr] 4 | use std::io::{Read, Write, SeekFrom, Seek};
Dec 19 17:45:43.180 INFO [stderr]   |                     ^^^^^
Dec 19 17:45:43.180 INFO [stderr]   |
Dec 19 17:45:43.180 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 17:45:43.180 INFO [stderr] 
Dec 19 17:45:43.180 INFO [stderr] warning: unused import: `std::default::Default`
Dec 19 17:45:43.180 INFO [stderr]  --> src/extract.rs:5:5
Dec 19 17:45:43.180 INFO [stderr]   |
Dec 19 17:45:43.180 INFO [stderr] 5 | use std::default::Default;
Dec 19 17:45:43.180 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.180 INFO [stderr] 
Dec 19 17:45:43.568 INFO [stderr] warning: unused variable: `img_count`
Dec 19 17:45:43.568 INFO [stderr]    --> src/common.rs:134:10
Dec 19 17:45:43.568 INFO [stderr]     |
Dec 19 17:45:43.568 INFO [stderr] 134 |     for (img_count, ent) in FileTypeIterator::new(input_folder, "png").enumerate()
Dec 19 17:45:43.568 INFO [stderr]     |          ^^^^^^^^^ help: consider using `_img_count` instead
Dec 19 17:45:43.568 INFO [stderr]     |
Dec 19 17:45:43.568 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 17:45:43.568 INFO [stderr] 
Dec 19 17:45:43.568 INFO [stderr] warning: variable `debug_difference_count` is assigned to, but never used
Dec 19 17:45:43.568 INFO [stderr]    --> src/compress.rs:290:13
Dec 19 17:45:43.568 INFO [stderr]     |
Dec 19 17:45:43.568 INFO [stderr] 290 |     let mut debug_difference_count = 0;
Dec 19 17:45:43.568 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.568 INFO [stderr]     |
Dec 19 17:45:43.568 INFO [stderr]     = note: consider using `_debug_difference_count` instead
Dec 19 17:45:43.568 INFO [stderr] 
Dec 19 17:45:43.685 INFO [stderr] warning: unused variable: `img_count`
Dec 19 17:45:43.685 INFO [stderr]    --> src/common.rs:134:10
Dec 19 17:45:43.685 INFO [stderr]     |
Dec 19 17:45:43.685 INFO [stderr] 134 |     for (img_count, ent) in FileTypeIterator::new(input_folder, "png").enumerate()
Dec 19 17:45:43.685 INFO [stderr]     |          ^^^^^^^^^ help: consider using `_img_count` instead
Dec 19 17:45:43.685 INFO [stderr]     |
Dec 19 17:45:43.692 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 17:45:43.692 INFO [stderr] 
Dec 19 17:45:43.692 INFO [stderr] warning: variable `debug_difference_count` is assigned to, but never used
Dec 19 17:45:43.692 INFO [stderr]    --> src/compress.rs:290:13
Dec 19 17:45:43.692 INFO [stderr]     |
Dec 19 17:45:43.692 INFO [stderr] 290 |     let mut debug_difference_count = 0;
Dec 19 17:45:43.692 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.692 INFO [stderr]     |
Dec 19 17:45:43.692 INFO [stderr]     = note: consider using `_debug_difference_count` instead
Dec 19 17:45:43.692 INFO [stderr] 
Dec 19 17:45:43.704 INFO [stderr] warning: function is never used: `u8_buf_to_u32_big_endian`
Dec 19 17:45:43.704 INFO [stderr]    --> src/common.rs:223:1
Dec 19 17:45:43.704 INFO [stderr]     |
Dec 19 17:45:43.704 INFO [stderr] 223 | pub fn u8_buf_to_u32_big_endian(buf : &[u8; 4]) -> u32
Dec 19 17:45:43.704 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.704 INFO [stderr]     |
Dec 19 17:45:43.704 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 17:45:43.704 INFO [stderr] 
Dec 19 17:45:43.704 INFO [stderr] warning: function is never used: `u8_stream_to_u32_big_endian`
Dec 19 17:45:43.705 INFO [stderr]    --> src/common.rs:232:1
Dec 19 17:45:43.705 INFO [stderr]     |
Dec 19 17:45:43.705 INFO [stderr] 232 | pub fn u8_stream_to_u32_big_endian(reader : &mut Read) -> u32
Dec 19 17:45:43.705 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.705 INFO [stderr] 
Dec 19 17:45:43.705 INFO [stderr] warning: function is never used: `get_png_dimensions`
Dec 19 17:45:43.705 INFO [stderr]    --> src/common.rs:240:1
Dec 19 17:45:43.705 INFO [stderr]     |
Dec 19 17:45:43.705 INFO [stderr] 240 | pub fn get_png_dimensions(reader : &mut Read) -> Result<(u32, u32), &'static str>
Dec 19 17:45:43.705 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.705 INFO [stderr] 
Dec 19 17:45:43.705 INFO [stderr] warning: function is never used: `scan_folder_for_max_png_size`
Dec 19 17:45:43.705 INFO [stderr]    --> src/common.rs:264:1
Dec 19 17:45:43.705 INFO [stderr]     |
Dec 19 17:45:43.705 INFO [stderr] 264 | pub fn scan_folder_for_max_png_size(input_folder : &str) -> (u32, u32)
Dec 19 17:45:43.705 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.705 INFO [stderr] 
Dec 19 17:45:43.705 INFO [stderr] warning: function is never used: `save_image_no_alpha`
Dec 19 17:45:43.705 INFO [stderr]    --> src/common.rs:290:1
Dec 19 17:45:43.705 INFO [stderr]     |
Dec 19 17:45:43.705 INFO [stderr] 290 | pub fn save_image_no_alpha(mut image : RgbaImage, save_path : &str)
Dec 19 17:45:43.705 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.705 INFO [stderr] 
Dec 19 17:45:43.705 INFO [stderr] warning: function is never used: `compress_image_to_buffer`
Dec 19 17:45:43.705 INFO [stderr]    --> src/common.rs:309:1
Dec 19 17:45:43.705 INFO [stderr]     |
Dec 19 17:45:43.705 INFO [stderr] 309 | pub fn compress_image_to_buffer(img: &image::RgbaImage) -> Vec<u8>
Dec 19 17:45:43.705 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.705 INFO [stderr] 
Dec 19 17:45:43.705 INFO [stderr] warning: function is never used: `compress_buffer`
Dec 19 17:45:43.705 INFO [stderr]    --> src/common.rs:327:1
Dec 19 17:45:43.705 INFO [stderr]     |
Dec 19 17:45:43.705 INFO [stderr] 327 | pub fn compress_buffer(img: &Vec<u8>) -> Vec<u8>
Dec 19 17:45:43.705 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.705 INFO [stderr] 
Dec 19 17:45:43.705 INFO [stderr] warning: struct is never constructed: `CroppedImageBounds`
Dec 19 17:45:43.705 INFO [stderr]   --> src/compress.rs:24:1
Dec 19 17:45:43.705 INFO [stderr]    |
Dec 19 17:45:43.705 INFO [stderr] 24 | struct CroppedImageBounds {
Dec 19 17:45:43.705 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.705 INFO [stderr] 
Dec 19 17:45:43.705 INFO [stderr] warning: function is never used: `crop_function`
Dec 19 17:45:43.705 INFO [stderr]   --> src/compress.rs:43:1
Dec 19 17:45:43.705 INFO [stderr]    |
Dec 19 17:45:43.705 INFO [stderr] 43 | fn crop_function(img: &image::RgbaImage, offset : (u32, u32), max_width : u32, max_height : u32) -> (CroppedImageBounds, u64)
Dec 19 17:45:43.705 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.705 INFO [stderr] 
Dec 19 17:45:43.856 INFO [stderr] warning: function is never used: `u8_buf_to_u32_big_endian`
Dec 19 17:45:43.856 INFO [stderr]    --> src/common.rs:223:1
Dec 19 17:45:43.856 INFO [stderr]     |
Dec 19 17:45:43.856 INFO [stderr] 223 | pub fn u8_buf_to_u32_big_endian(buf : &[u8; 4]) -> u32
Dec 19 17:45:43.856 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.856 INFO [stderr]     |
Dec 19 17:45:43.856 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 17:45:43.856 INFO [stderr] 
Dec 19 17:45:43.856 INFO [stderr] warning: function is never used: `u8_stream_to_u32_big_endian`
Dec 19 17:45:43.856 INFO [stderr]    --> src/common.rs:232:1
Dec 19 17:45:43.856 INFO [stderr]     |
Dec 19 17:45:43.856 INFO [stderr] 232 | pub fn u8_stream_to_u32_big_endian(reader : &mut Read) -> u32
Dec 19 17:45:43.856 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.856 INFO [stderr] 
Dec 19 17:45:43.856 INFO [stderr] warning: function is never used: `get_png_dimensions`
Dec 19 17:45:43.856 INFO [stderr]    --> src/common.rs:240:1
Dec 19 17:45:43.856 INFO [stderr]     |
Dec 19 17:45:43.856 INFO [stderr] 240 | pub fn get_png_dimensions(reader : &mut Read) -> Result<(u32, u32), &'static str>
Dec 19 17:45:43.856 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.856 INFO [stderr] 
Dec 19 17:45:43.856 INFO [stderr] warning: function is never used: `scan_folder_for_max_png_size`
Dec 19 17:45:43.856 INFO [stderr]    --> src/common.rs:264:1
Dec 19 17:45:43.856 INFO [stderr]     |
Dec 19 17:45:43.856 INFO [stderr] 264 | pub fn scan_folder_for_max_png_size(input_folder : &str) -> (u32, u32)
Dec 19 17:45:43.856 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.856 INFO [stderr] 
Dec 19 17:45:43.856 INFO [stderr] warning: function is never used: `save_image_no_alpha`
Dec 19 17:45:43.856 INFO [stderr]    --> src/common.rs:290:1
Dec 19 17:45:43.856 INFO [stderr]     |
Dec 19 17:45:43.856 INFO [stderr] 290 | pub fn save_image_no_alpha(mut image : RgbaImage, save_path : &str)
Dec 19 17:45:43.856 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.856 INFO [stderr] 
Dec 19 17:45:43.856 INFO [stderr] warning: function is never used: `compress_image_to_buffer`
Dec 19 17:45:43.856 INFO [stderr]    --> src/common.rs:309:1
Dec 19 17:45:43.856 INFO [stderr]     |
Dec 19 17:45:43.856 INFO [stderr] 309 | pub fn compress_image_to_buffer(img: &image::RgbaImage) -> Vec<u8>
Dec 19 17:45:43.856 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.856 INFO [stderr] 
Dec 19 17:45:43.856 INFO [stderr] warning: function is never used: `compress_buffer`
Dec 19 17:45:43.856 INFO [stderr]    --> src/common.rs:327:1
Dec 19 17:45:43.856 INFO [stderr]     |
Dec 19 17:45:43.856 INFO [stderr] 327 | pub fn compress_buffer(img: &Vec<u8>) -> Vec<u8>
Dec 19 17:45:43.856 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.856 INFO [stderr] 
Dec 19 17:45:43.856 INFO [stderr] warning: struct is never constructed: `CroppedImageBounds`
Dec 19 17:45:43.856 INFO [stderr]   --> src/compress.rs:24:1
Dec 19 17:45:43.856 INFO [stderr]    |
Dec 19 17:45:43.856 INFO [stderr] 24 | struct CroppedImageBounds {
Dec 19 17:45:43.856 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.856 INFO [stderr] 
Dec 19 17:45:43.857 INFO [stderr] warning: function is never used: `crop_function`
Dec 19 17:45:43.857 INFO [stderr]   --> src/compress.rs:43:1
Dec 19 17:45:43.857 INFO [stderr]    |
Dec 19 17:45:43.857 INFO [stderr] 43 | fn crop_function(img: &image::RgbaImage, offset : (u32, u32), max_width : u32, max_height : u32) -> (CroppedImageBounds, u64)
Dec 19 17:45:43.857 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:45:43.857 INFO [stderr] 
Dec 19 17:45:43.913 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.69s
Dec 19 17:45:44.672 INFO running `"docker" "inspect" "4d2001711d099499f04753be1b49bfc822826ce246e23d33693965f78fd8ff9e"`
Dec 19 17:45:45.050 INFO running `"docker" "rm" "-f" "4d2001711d099499f04753be1b49bfc822826ce246e23d33693965f78fd8ff9e"`
Dec 19 17:45:45.287 INFO [stdout] 4d2001711d099499f04753be1b49bfc822826ce246e23d33693965f78fd8ff9e