[INFO] updating cached repository https://github.com/doughsay/halomonas_titanicae
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 70752e3de080fcb18d342259ccd6733fa988ba2f
[INFO] testing doughsay/halomonas_titanicae against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdoughsay%2Fhalomonas_titanicae" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/doughsay/halomonas_titanicae on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/doughsay/halomonas_titanicae
[INFO] finished tweaking git repo https://github.com/doughsay/halomonas_titanicae
[INFO] tweaked toml for git repo https://github.com/doughsay/halomonas_titanicae written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/doughsay/halomonas_titanicae already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 472eeadcc5f1a71f04d8b7b874e8ff0b9f7a83994788210ab242e1abdb45eddd
[INFO] running `"docker" "start" "-a" "472eeadcc5f1a71f04d8b7b874e8ff0b9f7a83994788210ab242e1abdb45eddd"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v0.4.25
[INFO] [stderr]    Compiling nix v0.12.0
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.10
[INFO] [stderr]    Compiling stb_truetype v0.2.5
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling rusttype v0.7.3
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling wayland-sys v0.21.10
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling andrew v0.1.5
[INFO] [stderr]    Compiling piston2d-graphics v0.28.0
[INFO] [stderr]    Compiling wayland-client v0.21.10
[INFO] [stderr]    Compiling wayland-protocols v0.21.10
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling wayland-commons v0.21.10
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling tiff v0.2.1
[INFO] [stderr]    Compiling image v0.20.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.4.4
[INFO] [stderr]    Compiling winit v0.18.1
[INFO] [stderr]    Compiling pistoncore-input v0.23.0
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.57.0
[INFO] [stderr]    Compiling pistoncore-window v0.34.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.39.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.51.1
[INFO] [stderr]    Compiling piston v0.39.0
[INFO] [stderr]    Compiling halomonas_titanicae v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `print_state`
[INFO] [stderr]   --> src/counting_life.rs:70:8
[INFO] [stderr]    |
[INFO] [stderr] 70 | pub fn print_state(state: &WorldState) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ActiveBuffer`
[INFO] [stderr]   --> src/hashmap_life.rs:10:6
[INFO] [stderr]    |
[INFO] [stderr] 10 | enum ActiveBuffer {
[INFO] [stderr]    |      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WorldState`
[INFO] [stderr]   --> src/hashmap_life.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct WorldState {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_state`
[INFO] [stderr]   --> src/hashmap_life.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn random_state(height: i32, width: i32) -> WorldState {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_state`
[INFO] [stderr]   --> src/hashmap_life.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn print_state(state: &WorldState, from: (i32, i32), to: (i32, i32)) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tick`
[INFO] [stderr]   --> src/hashmap_life.rs:69:8
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn tick(state: &mut WorldState) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_neighbors`
[INFO] [stderr]   --> src/hashmap_life.rs:97:4
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn count_neighbors(hashmap: &HashMap<Point, bool>, point: &Point) -> u8 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `birth`
[INFO] [stderr]    --> src/hashmap_life.rs:118:4
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn birth(hashmap: &mut HashMap<Point, bool>, point: Point) {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ActiveBuffer`
[INFO] [stderr]  --> src/naive_life.rs:8:6
[INFO] [stderr]   |
[INFO] [stderr] 8 | enum ActiveBuffer {
[INFO] [stderr]   |      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WorldSize`
[INFO] [stderr]   --> src/naive_life.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct WorldSize {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WorldState`
[INFO] [stderr]   --> src/naive_life.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct WorldState {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_state`
[INFO] [stderr]   --> src/naive_life.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn random_state(height: usize, width: usize) -> WorldState {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_state`
[INFO] [stderr]   --> src/naive_life.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn print_state(state: &WorldState) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tick`
[INFO] [stderr]   --> src/naive_life.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn tick(state: &mut WorldState) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_neighbors`
[INFO] [stderr]   --> src/naive_life.rs:99:4
[INFO] [stderr]    |
[INFO] [stderr] 99 | fn count_neighbors(vec: &[bool], width: usize, height: usize, x: usize, y: usize) -> u8 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `"docker" "inspect" "472eeadcc5f1a71f04d8b7b874e8ff0b9f7a83994788210ab242e1abdb45eddd"`
[INFO] running `"docker" "rm" "-f" "472eeadcc5f1a71f04d8b7b874e8ff0b9f7a83994788210ab242e1abdb45eddd"`
[INFO] [stdout] 472eeadcc5f1a71f04d8b7b874e8ff0b9f7a83994788210ab242e1abdb45eddd
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7d45ba64c943ac9244991f3a54882866c9a0468bff5b288949c42d73a8535e82
[INFO] running `"docker" "start" "-a" "7d45ba64c943ac9244991f3a54882866c9a0468bff5b288949c42d73a8535e82"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling halomonas_titanicae v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `print_state`
[INFO] [stderr]   --> src/counting_life.rs:70:8
[INFO] [stderr]    |
[INFO] [stderr] 70 | pub fn print_state(state: &WorldState) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ActiveBuffer`
[INFO] [stderr]   --> src/hashmap_life.rs:10:6
[INFO] [stderr]    |
[INFO] [stderr] 10 | enum ActiveBuffer {
[INFO] [stderr]    |      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WorldState`
[INFO] [stderr]   --> src/hashmap_life.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct WorldState {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_state`
[INFO] [stderr]   --> src/hashmap_life.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn random_state(height: i32, width: i32) -> WorldState {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_state`
[INFO] [stderr]   --> src/hashmap_life.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn print_state(state: &WorldState, from: (i32, i32), to: (i32, i32)) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tick`
[INFO] [stderr]   --> src/hashmap_life.rs:69:8
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn tick(state: &mut WorldState) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_neighbors`
[INFO] [stderr]   --> src/hashmap_life.rs:97:4
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn count_neighbors(hashmap: &HashMap<Point, bool>, point: &Point) -> u8 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `birth`
[INFO] [stderr]    --> src/hashmap_life.rs:118:4
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn birth(hashmap: &mut HashMap<Point, bool>, point: Point) {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ActiveBuffer`
[INFO] [stderr]  --> src/naive_life.rs:8:6
[INFO] [stderr]   |
[INFO] [stderr] 8 | enum ActiveBuffer {
[INFO] [stderr]   |      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WorldSize`
[INFO] [stderr]   --> src/naive_life.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct WorldSize {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WorldState`
[INFO] [stderr]   --> src/naive_life.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct WorldState {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_state`
[INFO] [stderr]   --> src/naive_life.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn random_state(height: usize, width: usize) -> WorldState {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_state`
[INFO] [stderr]   --> src/naive_life.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn print_state(state: &WorldState) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tick`
[INFO] [stderr]   --> src/naive_life.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn tick(state: &mut WorldState) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_neighbors`
[INFO] [stderr]   --> src/naive_life.rs:99:4
[INFO] [stderr]    |
[INFO] [stderr] 99 | fn count_neighbors(vec: &[bool], width: usize, height: usize, x: usize, y: usize) -> u8 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "7d45ba64c943ac9244991f3a54882866c9a0468bff5b288949c42d73a8535e82"`
[INFO] running `"docker" "rm" "-f" "7d45ba64c943ac9244991f3a54882866c9a0468bff5b288949c42d73a8535e82"`
[INFO] [stdout] 7d45ba64c943ac9244991f3a54882866c9a0468bff5b288949c42d73a8535e82
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e7c0e24ed1cb8ff9331e3b6a514da3f4c1415b6f5f0646d0aa3bd2d16b57b0ba
[INFO] running `"docker" "start" "-a" "e7c0e24ed1cb8ff9331e3b6a514da3f4c1415b6f5f0646d0aa3bd2d16b57b0ba"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: function is never used: `print_state`
[INFO] [stderr]   --> src/counting_life.rs:70:8
[INFO] [stderr]    |
[INFO] [stderr] 70 | pub fn print_state(state: &WorldState) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ActiveBuffer`
[INFO] [stderr]   --> src/hashmap_life.rs:10:6
[INFO] [stderr]    |
[INFO] [stderr] 10 | enum ActiveBuffer {
[INFO] [stderr]    |      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WorldState`
[INFO] [stderr]   --> src/hashmap_life.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct WorldState {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_state`
[INFO] [stderr]   --> src/hashmap_life.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn random_state(height: i32, width: i32) -> WorldState {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_state`
[INFO] [stderr]   --> src/hashmap_life.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn print_state(state: &WorldState, from: (i32, i32), to: (i32, i32)) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tick`
[INFO] [stderr]   --> src/hashmap_life.rs:69:8
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn tick(state: &mut WorldState) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_neighbors`
[INFO] [stderr]   --> src/hashmap_life.rs:97:4
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn count_neighbors(hashmap: &HashMap<Point, bool>, point: &Point) -> u8 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `birth`
[INFO] [stderr]    --> src/hashmap_life.rs:118:4
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn birth(hashmap: &mut HashMap<Point, bool>, point: Point) {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ActiveBuffer`
[INFO] [stderr]  --> src/naive_life.rs:8:6
[INFO] [stderr]   |
[INFO] [stderr] 8 | enum ActiveBuffer {
[INFO] [stderr]   |      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WorldSize`
[INFO] [stderr]   --> src/naive_life.rs:13:8
[INFO] [stderr]    |
[INFO] [stderr] 13 | struct WorldSize {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `WorldState`
[INFO] [stderr]   --> src/naive_life.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub struct WorldState {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `random_state`
[INFO] [stderr]   --> src/naive_life.rs:25:8
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub fn random_state(height: usize, width: usize) -> WorldState {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_state`
[INFO] [stderr]   --> src/naive_life.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn print_state(state: &WorldState) {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `tick`
[INFO] [stderr]   --> src/naive_life.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn tick(state: &mut WorldState) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_neighbors`
[INFO] [stderr]   --> src/naive_life.rs:99:4
[INFO] [stderr]    |
[INFO] [stderr] 99 | fn count_neighbors(vec: &[bool], width: usize, height: usize, x: usize, y: usize) -> u8 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/halomonas_titanicae-03b5fef323c0aa98
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e7c0e24ed1cb8ff9331e3b6a514da3f4c1415b6f5f0646d0aa3bd2d16b57b0ba"`
[INFO] running `"docker" "rm" "-f" "e7c0e24ed1cb8ff9331e3b6a514da3f4c1415b6f5f0646d0aa3bd2d16b57b0ba"`
[INFO] [stdout] e7c0e24ed1cb8ff9331e3b6a514da3f4c1415b6f5f0646d0aa3bd2d16b57b0ba