Dec 19 16:37:20.117 INFO checking genya0407/png_print against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 16:37:20.117 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/genya0407/png_print:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:37:20.546 INFO [stdout] c5d1b2c269b853f610aad70e6bfc4e6887f51c922eafa53951b8a2c231169bf7
Dec 19 16:37:20.549 INFO running `"docker" "start" "-a" "c5d1b2c269b853f610aad70e6bfc4e6887f51c922eafa53951b8a2c231169bf7"`
Dec 19 16:37:22.585 INFO [stderr]     Checking png_encoder v0.1.0 (/opt/crater/workdir)
Dec 19 16:37:23.100 INFO [stderr] warning: unused variable: `scanline`
Dec 19 16:37:23.100 INFO [stderr]   --> src/model.rs:98:25
Dec 19 16:37:23.100 INFO [stderr]    |
Dec 19 16:37:23.100 INFO [stderr] 98 |                     let scanline: Vec<Color> = match filter_method {
Dec 19 16:37:23.100 INFO [stderr]    |                         ^^^^^^^^ help: consider using `_scanline` instead
Dec 19 16:37:23.100 INFO [stderr]    |
Dec 19 16:37:23.100 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 16:37:23.100 INFO [stderr] 
Dec 19 16:37:23.100 INFO [stderr] warning: unused variable: `scanline`
Dec 19 16:37:23.101 INFO [stderr]   --> src/model.rs:98:25
Dec 19 16:37:23.101 INFO [stderr]    |
Dec 19 16:37:23.101 INFO [stderr] 98 |                     let scanline: Vec<Color> = match filter_method {
Dec 19 16:37:23.101 INFO [stderr]    |                         ^^^^^^^^ help: consider using `_scanline` instead
Dec 19 16:37:23.101 INFO [stderr]    |
Dec 19 16:37:23.101 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 16:37:23.101 INFO [stderr] 
Dec 19 16:37:23.132 INFO [stderr] warning: method is never used: `width`
Dec 19 16:37:23.132 INFO [stderr]   --> src/model.rs:66:5
Dec 19 16:37:23.132 INFO [stderr]    |
Dec 19 16:37:23.132 INFO [stderr] 66 |     pub fn width(&self) -> usize {
Dec 19 16:37:23.132 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:37:23.132 INFO [stderr]    |
Dec 19 16:37:23.132 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:37:23.132 INFO [stderr] 
Dec 19 16:37:23.132 INFO [stderr] warning: field is never used: `compression_method`
Dec 19 16:37:23.132 INFO [stderr]    --> src/model.rs:222:5
Dec 19 16:37:23.132 INFO [stderr]     |
Dec 19 16:37:23.132 INFO [stderr] 222 |     compression_method: u8,
Dec 19 16:37:23.132 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:37:23.132 INFO [stderr] 
Dec 19 16:37:23.132 INFO [stderr] warning: field is never used: `additional_flags`
Dec 19 16:37:23.132 INFO [stderr]    --> src/model.rs:223:5
Dec 19 16:37:23.132 INFO [stderr]     |
Dec 19 16:37:23.132 INFO [stderr] 223 |     additional_flags: u8,
Dec 19 16:37:23.132 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 16:37:23.132 INFO [stderr] 
Dec 19 16:37:23.132 INFO [stderr] warning: field is never used: `check_value`
Dec 19 16:37:23.132 INFO [stderr]    --> src/model.rs:225:5
Dec 19 16:37:23.132 INFO [stderr]     |
Dec 19 16:37:23.132 INFO [stderr] 225 |     check_value: u32,
Dec 19 16:37:23.132 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 19 16:37:23.132 INFO [stderr] 
Dec 19 16:37:23.152 INFO [stderr] warning: method is never used: `width`
Dec 19 16:37:23.152 INFO [stderr]   --> src/model.rs:66:5
Dec 19 16:37:23.152 INFO [stderr]    |
Dec 19 16:37:23.152 INFO [stderr] 66 |     pub fn width(&self) -> usize {
Dec 19 16:37:23.152 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:37:23.152 INFO [stderr]    |
Dec 19 16:37:23.152 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:37:23.152 INFO [stderr] 
Dec 19 16:37:23.152 INFO [stderr] warning: field is never used: `compression_method`
Dec 19 16:37:23.152 INFO [stderr]    --> src/model.rs:222:5
Dec 19 16:37:23.152 INFO [stderr]     |
Dec 19 16:37:23.152 INFO [stderr] 222 |     compression_method: u8,
Dec 19 16:37:23.152 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:37:23.152 INFO [stderr] 
Dec 19 16:37:23.152 INFO [stderr] warning: field is never used: `additional_flags`
Dec 19 16:37:23.152 INFO [stderr]    --> src/model.rs:223:5
Dec 19 16:37:23.152 INFO [stderr]     |
Dec 19 16:37:23.152 INFO [stderr] 223 |     additional_flags: u8,
Dec 19 16:37:23.152 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 16:37:23.152 INFO [stderr] 
Dec 19 16:37:23.152 INFO [stderr] warning: field is never used: `check_value`
Dec 19 16:37:23.152 INFO [stderr]    --> src/model.rs:225:5
Dec 19 16:37:23.152 INFO [stderr]     |
Dec 19 16:37:23.152 INFO [stderr] 225 |     check_value: u32,
Dec 19 16:37:23.152 INFO [stderr]     |     ^^^^^^^^^^^^^^^^
Dec 19 16:37:23.153 INFO [stderr] 
Dec 19 16:37:23.210 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
Dec 19 16:37:24.434 INFO running `"docker" "inspect" "c5d1b2c269b853f610aad70e6bfc4e6887f51c922eafa53951b8a2c231169bf7"`
Dec 19 16:37:24.710 INFO running `"docker" "rm" "-f" "c5d1b2c269b853f610aad70e6bfc4e6887f51c922eafa53951b8a2c231169bf7"`
Dec 19 16:37:25.116 INFO [stdout] c5d1b2c269b853f610aad70e6bfc4e6887f51c922eafa53951b8a2c231169bf7