Dec 11 21:00:38.714 INFO checking chansuke/rs-mandelbrot against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 21:00:38.714 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 21:00:39.240 INFO [stdout] ef8a5d5e4951aaad4618f382ab8213016ec63dbe1c0113a9234e950d95531596
Dec 11 21:00:39.246 INFO running `"docker" "start" "-a" "ef8a5d5e4951aaad4618f382ab8213016ec63dbe1c0113a9234e950d95531596"`
Dec 11 21:00:41.274 INFO [stderr] usermod: no changes
Dec 11 21:00:41.552 INFO [stderr]     Checking num-bigint v0.1.44
Dec 11 21:00:43.682 INFO [stderr]     Checking num-rational v0.1.42
Dec 11 21:00:44.918 INFO [stderr]     Checking num v0.1.42
Dec 11 21:00:44.919 INFO [stderr]     Checking image v0.13.0
Dec 11 21:00:50.301 INFO [stderr]     Checking mandelbrot v0.1.0 (/source)
Dec 11 21:00:53.528 INFO [stderr] warning: function is never used: `escape_time`
Dec 11 21:00:53.528 INFO [stderr]   --> src/main.rs:74:1
Dec 11 21:00:53.528 INFO [stderr]    |
Dec 11 21:00:53.528 INFO [stderr] 74 | fn escape_time(c: Complex<f64>, limit: u32) -> Option<u32> {
Dec 11 21:00:53.529 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:00:53.529 INFO [stderr]    |
Dec 11 21:00:53.529 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 21:00:53.529 INFO [stderr] 
Dec 11 21:00:53.529 INFO [stderr] warning: function is never used: `render`
Dec 11 21:00:53.529 INFO [stderr]    --> src/main.rs:95:1
Dec 11 21:00:53.529 INFO [stderr]     |
Dec 11 21:00:53.529 INFO [stderr] 95  | / fn render(
Dec 11 21:00:53.529 INFO [stderr] 96  | |     pixels: &mut [u8],
Dec 11 21:00:53.529 INFO [stderr] 97  | |     bounds: (usize, usize),
Dec 11 21:00:53.529 INFO [stderr] 98  | |     upper_left: Complex<f64>,
Dec 11 21:00:53.529 INFO [stderr] ...   |
Dec 11 21:00:53.529 INFO [stderr] 111 | |     }
Dec 11 21:00:53.529 INFO [stderr] 112 | | }
Dec 11 21:00:53.529 INFO [stderr]     | |_^
Dec 11 21:00:53.529 INFO [stderr] 
Dec 11 21:00:53.529 INFO [stderr] warning: function is never used: `write_image`
Dec 11 21:00:53.529 INFO [stderr]    --> src/main.rs:120:1
Dec 11 21:00:53.529 INFO [stderr]     |
Dec 11 21:00:53.529 INFO [stderr] 120 | / fn write_image(
Dec 11 21:00:53.529 INFO [stderr] 121 | |     filename: &str,
Dec 11 21:00:53.529 INFO [stderr] 122 | |     pixels: &[u8],
Dec 11 21:00:53.529 INFO [stderr] 123 | |     bounds: (usize, usize),
Dec 11 21:00:53.529 INFO [stderr] ...   |
Dec 11 21:00:53.529 INFO [stderr] 135 | |     Ok(())
Dec 11 21:00:53.529 INFO [stderr] 136 | | }
Dec 11 21:00:53.529 INFO [stderr]     | |_^
Dec 11 21:00:53.529 INFO [stderr] 
Dec 11 21:00:53.532 INFO [stderr] warning: function is never used: `parse_pair`
Dec 11 21:00:53.532 INFO [stderr]  --> src/main.rs:5:1
Dec 11 21:00:53.532 INFO [stderr]   |
Dec 11 21:00:53.533 INFO [stderr] 5 | fn parse_pair<T: FromStr>(s: &str, separator: char) -> Option<(T, T)> {
Dec 11 21:00:53.533 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:00:53.533 INFO [stderr]   |
Dec 11 21:00:53.534 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 21:00:53.534 INFO [stderr] 
Dec 11 21:00:53.534 INFO [stderr] warning: function is never used: `parse_complex`
Dec 11 21:00:53.535 INFO [stderr]   --> src/main.rs:26:1
Dec 11 21:00:53.535 INFO [stderr]    |
Dec 11 21:00:53.535 INFO [stderr] 26 | fn parse_complex(s: &str) -> Option<Complex<f64>> {
Dec 11 21:00:53.536 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:00:53.536 INFO [stderr] 
Dec 11 21:00:53.536 INFO [stderr] warning: function is never used: `pixel_to_point`
Dec 11 21:00:53.536 INFO [stderr]   --> src/main.rs:45:1
Dec 11 21:00:53.537 INFO [stderr]    |
Dec 11 21:00:53.537 INFO [stderr] 45 | / fn pixel_to_point(
Dec 11 21:00:53.537 INFO [stderr] 46 | |     bounds: (usize, usize),
Dec 11 21:00:53.538 INFO [stderr] 47 | |     pixel: (usize, usize),
Dec 11 21:00:53.538 INFO [stderr] 48 | |     upper_left: Complex<f64>,
Dec 11 21:00:53.538 INFO [stderr] ...  |
Dec 11 21:00:53.539 INFO [stderr] 58 | |     }
Dec 11 21:00:53.539 INFO [stderr] 59 | | }
Dec 11 21:00:53.539 INFO [stderr]    | |_^
Dec 11 21:00:53.540 INFO [stderr] 
Dec 11 21:00:53.540 INFO [stderr] warning: function is never used: `escape_time`
Dec 11 21:00:53.540 INFO [stderr]   --> src/main.rs:74:1
Dec 11 21:00:53.541 INFO [stderr]    |
Dec 11 21:00:53.541 INFO [stderr] 74 | fn escape_time(c: Complex<f64>, limit: u32) -> Option<u32> {
Dec 11 21:00:53.541 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 21:00:53.541 INFO [stderr] 
Dec 11 21:00:53.542 INFO [stderr] warning: function is never used: `render`
Dec 11 21:00:53.542 INFO [stderr]    --> src/main.rs:95:1
Dec 11 21:00:53.542 INFO [stderr]     |
Dec 11 21:00:53.543 INFO [stderr] 95  | / fn render(
Dec 11 21:00:53.543 INFO [stderr] 96  | |     pixels: &mut [u8],
Dec 11 21:00:53.543 INFO [stderr] 97  | |     bounds: (usize, usize),
Dec 11 21:00:53.544 INFO [stderr] 98  | |     upper_left: Complex<f64>,
Dec 11 21:00:53.544 INFO [stderr] ...   |
Dec 11 21:00:53.544 INFO [stderr] 111 | |     }
Dec 11 21:00:53.545 INFO [stderr] 112 | | }
Dec 11 21:00:53.545 INFO [stderr]     | |_^
Dec 11 21:00:53.545 INFO [stderr] 
Dec 11 21:00:53.545 INFO [stderr] warning: function is never used: `write_image`
Dec 11 21:00:53.546 INFO [stderr]    --> src/main.rs:120:1
Dec 11 21:00:53.546 INFO [stderr]     |
Dec 11 21:00:53.546 INFO [stderr] 120 | / fn write_image(
Dec 11 21:00:53.547 INFO [stderr] 121 | |     filename: &str,
Dec 11 21:00:53.547 INFO [stderr] 122 | |     pixels: &[u8],
Dec 11 21:00:53.547 INFO [stderr] 123 | |     bounds: (usize, usize),
Dec 11 21:00:53.548 INFO [stderr] ...   |
Dec 11 21:00:53.548 INFO [stderr] 135 | |     Ok(())
Dec 11 21:00:53.548 INFO [stderr] 136 | | }
Dec 11 21:00:53.549 INFO [stderr]     | |_^
Dec 11 21:00:53.549 INFO [stderr] 
Dec 11 21:00:53.620 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.31s
Dec 11 21:00:53.649 INFO [stderr] su: No module specific data is present
Dec 11 21:00:56.070 INFO running `"docker" "inspect" "ef8a5d5e4951aaad4618f382ab8213016ec63dbe1c0113a9234e950d95531596"`
Dec 11 21:00:56.314 INFO running `"docker" "rm" "-f" "ef8a5d5e4951aaad4618f382ab8213016ec63dbe1c0113a9234e950d95531596"`
Dec 11 21:00:56.604 INFO [stdout] ef8a5d5e4951aaad4618f382ab8213016ec63dbe1c0113a9234e950d95531596