Dec 19 19:08:40.794 INFO checking chansuke/rs-mandelbrot against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 19:08:40.794 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/chansuke/rs-mandelbrot:/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 19:08:41.345 INFO [stdout] 2fc248c4d8d774c62067c669eeeb7e99799805dfb92ba23cd6e2e640c0b31d0d
Dec 19 19:08:41.347 INFO running `"docker" "start" "-a" "2fc248c4d8d774c62067c669eeeb7e99799805dfb92ba23cd6e2e640c0b31d0d"`
Dec 19 19:08:43.436 INFO [stderr]     Checking num-complex v0.1.43
Dec 19 19:08:43.436 INFO [stderr]     Checking num-bigint v0.1.44
Dec 19 19:08:43.436 INFO [stderr]     Checking png v0.7.0
Dec 19 19:08:43.437 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 19 19:08:47.436 INFO [stderr]     Checking num-rational v0.1.42
Dec 19 19:08:48.137 INFO [stderr]     Checking num v0.1.42
Dec 19 19:08:48.137 INFO [stderr]     Checking image v0.13.0
Dec 19 19:08:52.180 INFO [stderr]     Checking mandelbrot v0.1.0 (/opt/crater/workdir)
Dec 19 19:08:52.892 INFO [stderr] warning: function is never used: `escape_time`
Dec 19 19:08:52.893 INFO [stderr]   --> src/main.rs:74:1
Dec 19 19:08:52.893 INFO [stderr]    |
Dec 19 19:08:52.893 INFO [stderr] 74 | fn escape_time(c: Complex<f64>, limit: u32) -> Option<u32> {
Dec 19 19:08:52.893 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:08:52.893 INFO [stderr]    |
Dec 19 19:08:52.893 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 19:08:52.893 INFO [stderr] 
Dec 19 19:08:52.893 INFO [stderr] warning: function is never used: `render`
Dec 19 19:08:52.893 INFO [stderr]    --> src/main.rs:95:1
Dec 19 19:08:52.893 INFO [stderr]     |
Dec 19 19:08:52.893 INFO [stderr] 95  | / fn render(
Dec 19 19:08:52.893 INFO [stderr] 96  | |     pixels: &mut [u8],
Dec 19 19:08:52.893 INFO [stderr] 97  | |     bounds: (usize, usize),
Dec 19 19:08:52.893 INFO [stderr] 98  | |     upper_left: Complex<f64>,
Dec 19 19:08:52.893 INFO [stderr] ...   |
Dec 19 19:08:52.893 INFO [stderr] 111 | |     }
Dec 19 19:08:52.893 INFO [stderr] 112 | | }
Dec 19 19:08:52.893 INFO [stderr]     | |_^
Dec 19 19:08:52.893 INFO [stderr] 
Dec 19 19:08:52.893 INFO [stderr] warning: function is never used: `write_image`
Dec 19 19:08:52.893 INFO [stderr]    --> src/main.rs:120:1
Dec 19 19:08:52.893 INFO [stderr]     |
Dec 19 19:08:52.893 INFO [stderr] 120 | / fn write_image(
Dec 19 19:08:52.893 INFO [stderr] 121 | |     filename: &str,
Dec 19 19:08:52.893 INFO [stderr] 122 | |     pixels: &[u8],
Dec 19 19:08:52.893 INFO [stderr] 123 | |     bounds: (usize, usize),
Dec 19 19:08:52.893 INFO [stderr] ...   |
Dec 19 19:08:52.893 INFO [stderr] 135 | |     Ok(())
Dec 19 19:08:52.893 INFO [stderr] 136 | | }
Dec 19 19:08:52.893 INFO [stderr]     | |_^
Dec 19 19:08:52.893 INFO [stderr] 
Dec 19 19:08:53.075 INFO [stderr] warning: function is never used: `parse_pair`
Dec 19 19:08:53.075 INFO [stderr]  --> src/main.rs:5:1
Dec 19 19:08:53.075 INFO [stderr]   |
Dec 19 19:08:53.075 INFO [stderr] 5 | fn parse_pair<T: FromStr>(s: &str, separator: char) -> Option<(T, T)> {
Dec 19 19:08:53.075 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:08:53.075 INFO [stderr]   |
Dec 19 19:08:53.075 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 19:08:53.075 INFO [stderr] 
Dec 19 19:08:53.075 INFO [stderr] warning: function is never used: `parse_complex`
Dec 19 19:08:53.075 INFO [stderr]   --> src/main.rs:26:1
Dec 19 19:08:53.075 INFO [stderr]    |
Dec 19 19:08:53.075 INFO [stderr] 26 | fn parse_complex(s: &str) -> Option<Complex<f64>> {
Dec 19 19:08:53.075 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:08:53.075 INFO [stderr] 
Dec 19 19:08:53.075 INFO [stderr] warning: function is never used: `pixel_to_point`
Dec 19 19:08:53.075 INFO [stderr]   --> src/main.rs:45:1
Dec 19 19:08:53.075 INFO [stderr]    |
Dec 19 19:08:53.075 INFO [stderr] 45 | / fn pixel_to_point(
Dec 19 19:08:53.075 INFO [stderr] 46 | |     bounds: (usize, usize),
Dec 19 19:08:53.075 INFO [stderr] 47 | |     pixel: (usize, usize),
Dec 19 19:08:53.076 INFO [stderr] 48 | |     upper_left: Complex<f64>,
Dec 19 19:08:53.076 INFO [stderr] ...  |
Dec 19 19:08:53.076 INFO [stderr] 58 | |     }
Dec 19 19:08:53.076 INFO [stderr] 59 | | }
Dec 19 19:08:53.076 INFO [stderr]    | |_^
Dec 19 19:08:53.076 INFO [stderr] 
Dec 19 19:08:53.076 INFO [stderr] warning: function is never used: `escape_time`
Dec 19 19:08:53.076 INFO [stderr]   --> src/main.rs:74:1
Dec 19 19:08:53.076 INFO [stderr]    |
Dec 19 19:08:53.076 INFO [stderr] 74 | fn escape_time(c: Complex<f64>, limit: u32) -> Option<u32> {
Dec 19 19:08:53.076 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:08:53.076 INFO [stderr] 
Dec 19 19:08:53.076 INFO [stderr] warning: function is never used: `render`
Dec 19 19:08:53.076 INFO [stderr]    --> src/main.rs:95:1
Dec 19 19:08:53.076 INFO [stderr]     |
Dec 19 19:08:53.076 INFO [stderr] 95  | / fn render(
Dec 19 19:08:53.076 INFO [stderr] 96  | |     pixels: &mut [u8],
Dec 19 19:08:53.076 INFO [stderr] 97  | |     bounds: (usize, usize),
Dec 19 19:08:53.076 INFO [stderr] 98  | |     upper_left: Complex<f64>,
Dec 19 19:08:53.076 INFO [stderr] ...   |
Dec 19 19:08:53.076 INFO [stderr] 111 | |     }
Dec 19 19:08:53.076 INFO [stderr] 112 | | }
Dec 19 19:08:53.076 INFO [stderr]     | |_^
Dec 19 19:08:53.076 INFO [stderr] 
Dec 19 19:08:53.080 INFO [stderr] warning: function is never used: `write_image`
Dec 19 19:08:53.080 INFO [stderr]    --> src/main.rs:120:1
Dec 19 19:08:53.080 INFO [stderr]     |
Dec 19 19:08:53.080 INFO [stderr] 120 | / fn write_image(
Dec 19 19:08:53.080 INFO [stderr] 121 | |     filename: &str,
Dec 19 19:08:53.080 INFO [stderr] 122 | |     pixels: &[u8],
Dec 19 19:08:53.080 INFO [stderr] 123 | |     bounds: (usize, usize),
Dec 19 19:08:53.080 INFO [stderr] ...   |
Dec 19 19:08:53.080 INFO [stderr] 135 | |     Ok(())
Dec 19 19:08:53.080 INFO [stderr] 136 | | }
Dec 19 19:08:53.080 INFO [stderr]     | |_^
Dec 19 19:08:53.080 INFO [stderr] 
Dec 19 19:08:53.105 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.81s
Dec 19 19:08:54.026 INFO running `"docker" "inspect" "2fc248c4d8d774c62067c669eeeb7e99799805dfb92ba23cd6e2e640c0b31d0d"`
Dec 19 19:08:54.488 INFO running `"docker" "rm" "-f" "2fc248c4d8d774c62067c669eeeb7e99799805dfb92ba23cd6e2e640c0b31d0d"`
Dec 19 19:08:55.136 INFO [stdout] 2fc248c4d8d774c62067c669eeeb7e99799805dfb92ba23cd6e2e640c0b31d0d