Dec 11 13:55:32.700 INFO checking maxbeutel/rust-ascii-art against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 13:55:32.701 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 13:55:33.220 INFO [stdout] 915d0cde7464371c8419dee79e10917a7d2dbcb867ea631b26723531f9e68162
Dec 11 13:55:33.226 INFO running `"docker" "start" "-a" "915d0cde7464371c8419dee79e10917a7d2dbcb867ea631b26723531f9e68162"`
Dec 11 13:55:34.278 INFO [stderr] usermod: no changes
Dec 11 13:55:34.376 INFO [stderr]     Checking ascii-art v0.1.0 (/source)
Dec 11 13:55:34.894 INFO [stderr] warning: variant is never constructed: `Canvas`
Dec 11 13:55:34.894 INFO [stderr]   --> src/main.rs:10:5
Dec 11 13:55:34.894 INFO [stderr]    |
Dec 11 13:55:34.894 INFO [stderr] 10 |     Canvas,
Dec 11 13:55:34.894 INFO [stderr]    |     ^^^^^^
Dec 11 13:55:34.894 INFO [stderr]    |
Dec 11 13:55:34.894 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 13:55:34.894 INFO [stderr] 
Dec 11 13:55:34.894 INFO [stderr] warning: method is never used: `from_dimensions`
Dec 11 13:55:34.894 INFO [stderr]   --> src/main.rs:22:5
Dec 11 13:55:34.894 INFO [stderr]    |
Dec 11 13:55:34.894 INFO [stderr] 22 |     fn from_dimensions(dimensions: Dimensions) -> Vec<Coords> {
Dec 11 13:55:34.894 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.894 INFO [stderr] 
Dec 11 13:55:34.894 INFO [stderr] warning: function is never used: `coords_from_index`
Dec 11 13:55:34.894 INFO [stderr]   --> src/main.rs:23:9
Dec 11 13:55:34.894 INFO [stderr]    |
Dec 11 13:55:34.894 INFO [stderr] 23 |         fn coords_from_index(i: u32, dimensions: Dimensions) -> Coords {
Dec 11 13:55:34.894 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.894 INFO [stderr] 
Dec 11 13:55:34.894 INFO [stderr] warning: method is never used: `from_coords`
Dec 11 13:55:34.895 INFO [stderr]   --> src/main.rs:41:5
Dec 11 13:55:34.895 INFO [stderr]    |
Dec 11 13:55:34.895 INFO [stderr] 41 |     fn from_coords(coords: &Vec<Coords>) -> Dimensions {
Dec 11 13:55:34.895 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.895 INFO [stderr] 
Dec 11 13:55:34.895 INFO [stderr] warning: method is never used: `get_max_coord_from_coords`
Dec 11 13:55:34.895 INFO [stderr]   --> src/main.rs:49:5
Dec 11 13:55:34.895 INFO [stderr]    |
Dec 11 13:55:34.895 INFO [stderr] 49 |     fn get_max_coord_from_coords<'a, I: Iterator<Item=&'a Coords>>(coords: I, pluck_fn: &Fn(&Coords) -> u32) -> u32 {
Dec 11 13:55:34.895 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.895 INFO [stderr] 
Dec 11 13:55:34.895 INFO [stderr] warning: struct is never constructed: `CombinedObject`
Dec 11 13:55:34.895 INFO [stderr]   --> src/main.rs:66:1
Dec 11 13:55:34.895 INFO [stderr]    |
Dec 11 13:55:34.895 INFO [stderr] 66 | struct CombinedObject(Dimensions, Vec<Box<Plottable>>);
Dec 11 13:55:34.895 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.895 INFO [stderr] 
Dec 11 13:55:34.895 INFO [stderr] warning: method is never used: `rotate`
Dec 11 13:55:34.895 INFO [stderr]    --> src/main.rs:120:5
Dec 11 13:55:34.895 INFO [stderr]     |
Dec 11 13:55:34.895 INFO [stderr] 120 |     fn rotate(line: Line, rotation_center: Coords) -> Line {
Dec 11 13:55:34.895 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.895 INFO [stderr] 
Dec 11 13:55:34.895 INFO [stderr] warning: method is never used: `new`
Dec 11 13:55:34.895 INFO [stderr]    --> src/main.rs:174:5
Dec 11 13:55:34.895 INFO [stderr]     |
Dec 11 13:55:34.895 INFO [stderr] 174 |     fn new(start: Coords, end: Coords) -> Line {
Dec 11 13:55:34.895 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.895 INFO [stderr] 
Dec 11 13:55:34.895 INFO [stderr] warning: struct is never constructed: `Circle`
Dec 11 13:55:34.895 INFO [stderr]    --> src/main.rs:244:1
Dec 11 13:55:34.895 INFO [stderr]     |
Dec 11 13:55:34.895 INFO [stderr] 244 | struct Circle(Dimensions, Vec<Coords>);
Dec 11 13:55:34.895 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.895 INFO [stderr] 
Dec 11 13:55:34.895 INFO [stderr] warning: method is never used: `new`
Dec 11 13:55:34.895 INFO [stderr]    --> src/main.rs:247:5
Dec 11 13:55:34.895 INFO [stderr]     |
Dec 11 13:55:34.895 INFO [stderr] 247 |     fn new(point: Coords, radius: u32) -> Circle {
Dec 11 13:55:34.895 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.895 INFO [stderr] 
Dec 11 13:55:34.895 INFO [stderr] warning: struct is never constructed: `Canvas`
Dec 11 13:55:34.895 INFO [stderr]    --> src/main.rs:296:1
Dec 11 13:55:34.895 INFO [stderr]     |
Dec 11 13:55:34.895 INFO [stderr] 296 | struct Canvas(Dimensions, Vec<PlottedCoords>);
Dec 11 13:55:34.895 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.895 INFO [stderr] 
Dec 11 13:55:34.895 INFO [stderr] warning: function is never used: `combine`
Dec 11 13:55:34.895 INFO [stderr]    --> src/main.rs:299:1
Dec 11 13:55:34.895 INFO [stderr]     |
Dec 11 13:55:34.895 INFO [stderr] 299 | fn combine<T: Plottable + 'static, U: Plottable + 'static>(a: Box<T>, b: Box<U>) -> CombinedObject {
Dec 11 13:55:34.895 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.895 INFO [stderr] 
Dec 11 13:55:34.896 INFO [stderr] warning: function is never used: `plot`
Dec 11 13:55:34.896 INFO [stderr]    --> src/main.rs:312:1
Dec 11 13:55:34.896 INFO [stderr]     |
Dec 11 13:55:34.896 INFO [stderr] 312 | fn plot(a: Box<Plottable>) -> Canvas {
Dec 11 13:55:34.896 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.896 INFO [stderr] 
Dec 11 13:55:34.896 INFO [stderr] warning: function is never used: `draw`
Dec 11 13:55:34.896 INFO [stderr]    --> src/main.rs:327:1
Dec 11 13:55:34.896 INFO [stderr]     |
Dec 11 13:55:34.896 INFO [stderr] 327 | fn draw(canvas: Canvas) {
Dec 11 13:55:34.896 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.896 INFO [stderr] 
Dec 11 13:55:34.896 INFO [stderr] warning: function is never used: `fixtures_diagonal_line_ltr`
Dec 11 13:55:34.896 INFO [stderr]    --> src/main.rs:345:1
Dec 11 13:55:34.896 INFO [stderr]     |
Dec 11 13:55:34.896 INFO [stderr] 345 | fn fixtures_diagonal_line_ltr() -> Line {
Dec 11 13:55:34.896 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.896 INFO [stderr] 
Dec 11 13:55:34.896 INFO [stderr] warning: function is never used: `fixtures_horizontal_line`
Dec 11 13:55:34.896 INFO [stderr]    --> src/main.rs:349:1
Dec 11 13:55:34.896 INFO [stderr]     |
Dec 11 13:55:34.896 INFO [stderr] 349 | fn fixtures_horizontal_line() -> Line {
Dec 11 13:55:34.896 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.896 INFO [stderr] 
Dec 11 13:55:34.896 INFO [stderr] warning: function is never used: `fixtures_vertical_line`
Dec 11 13:55:34.896 INFO [stderr]    --> src/main.rs:353:1
Dec 11 13:55:34.896 INFO [stderr]     |
Dec 11 13:55:34.896 INFO [stderr] 353 | fn fixtures_vertical_line() -> Line {
Dec 11 13:55:34.896 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.896 INFO [stderr] 
Dec 11 13:55:34.896 INFO [stderr] warning: function is never used: `fixtures_circle`
Dec 11 13:55:34.896 INFO [stderr]    --> src/main.rs:357:1
Dec 11 13:55:34.896 INFO [stderr]     |
Dec 11 13:55:34.896 INFO [stderr] 357 | fn fixtures_circle() -> Circle {
Dec 11 13:55:34.896 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:34.896 INFO [stderr] 
Dec 11 13:55:35.328 INFO [stderr] warning: function is never used: `draw`
Dec 11 13:55:35.328 INFO [stderr]    --> src/main.rs:327:1
Dec 11 13:55:35.328 INFO [stderr]     |
Dec 11 13:55:35.328 INFO [stderr] 327 | fn draw(canvas: Canvas) {
Dec 11 13:55:35.328 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:55:35.328 INFO [stderr]     |
Dec 11 13:55:35.328 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 11 13:55:35.328 INFO [stderr] 
Dec 11 13:55:35.378 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
Dec 11 13:55:35.378 INFO [stderr] su: No module specific data is present
Dec 11 13:55:35.810 INFO running `"docker" "inspect" "915d0cde7464371c8419dee79e10917a7d2dbcb867ea631b26723531f9e68162"`
Dec 11 13:55:36.104 INFO running `"docker" "rm" "-f" "915d0cde7464371c8419dee79e10917a7d2dbcb867ea631b26723531f9e68162"`
Dec 11 13:55:36.372 INFO [stdout] 915d0cde7464371c8419dee79e10917a7d2dbcb867ea631b26723531f9e68162