[INFO] cloning repository https://github.com/patallen/gol-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/patallen/gol-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatallen%2Fgol-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatallen%2Fgol-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa6fda3459c07ea4127f2131d4df751f79fe1eef
[INFO] testing patallen/gol-rust against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatallen%2Fgol-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/patallen/gol-rust on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking git repo https://github.com/patallen/gol-rust
[INFO] finished tweaking git repo https://github.com/patallen/gol-rust
[INFO] tweaked toml for git repo https://github.com/patallen/gol-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/patallen/gol-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8c14138ce26fb405e8382e1999558ba2b2e6ef7ebd1694ff455bd1d0119942ad
[INFO] running `Command { std: "docker" "start" "-a" "8c14138ce26fb405e8382e1999558ba2b2e6ef7ebd1694ff455bd1d0119942ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c14138ce26fb405e8382e1999558ba2b2e6ef7ebd1694ff455bd1d0119942ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c14138ce26fb405e8382e1999558ba2b2e6ef7ebd1694ff455bd1d0119942ad", kill_on_drop: false }`
[INFO] [stdout] 8c14138ce26fb405e8382e1999558ba2b2e6ef7ebd1694ff455bd1d0119942ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d78b1909902444645c41d4d80201dc61e29eb7203d8d443cb760e080fcd2d45
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0d78b1909902444645c41d4d80201dc61e29eb7203d8d443cb760e080fcd2d45", kill_on_drop: false }`
[INFO] [stderr]    Compiling sdl2-sys v0.30.0
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling sdl2 v0.30.0
[INFO] [stderr]    Compiling game_of_life v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/engine/scene.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type BoxedScene = Box<Scene + 'static>;
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Scene + 'static`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/engine/scene.rs:25:46
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn top(&mut self) -> Option<&mut Box<Scene>> {
[INFO] [stdout]    |                                              ^^^^^ help: use `dyn`: `dyn Scene`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::render::WindowCanvas`
[INFO] [stdout]  --> src/scenes.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sdl2::render::WindowCanvas;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/game.rs:120:60
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 &Event::MouseButtonDown{mouse_btn: button, x, y, ..} => match &self.mode {
[INFO] [stdout]     |                                                            ^ help: try ignoring the field: `x: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/game.rs:120:63
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 &Event::MouseButtonDown{mouse_btn: button, x, y, ..} => match &self.mode {
[INFO] [stdout]     |                                                               ^ help: try ignoring the field: `y: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/game.rs:130:58
[INFO] [stdout]     |
[INFO] [stdout] 130 |                 &Event::MouseButtonUp{mouse_btn: button, x, y, ..} => match &self.mode {
[INFO] [stdout]     |                                                          ^ help: try ignoring the field: `x: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/game.rs:130:61
[INFO] [stdout]     |
[INFO] [stdout] 130 |                 &Event::MouseButtonUp{mouse_btn: button, x, y, ..} => match &self.mode {
[INFO] [stdout]     |                                                             ^ help: try ignoring the field: `y: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/board.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 let mut cell = &mut self.cells[ridx][cidx];
[INFO] [stdout]    |                     ----^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `em_callback_func`
[INFO] [stdout]  --> src/emscripten.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | type em_callback_func = unsafe extern fn();
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `emscripten_set_main_loop`
[INFO] [stdout]   --> src/emscripten.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | /     fn emscripten_set_main_loop(func: em_callback_func,
[INFO] [stdout] 9  | |                                 fps: c_int,
[INFO] [stdout] 10 | |                                 simulate_infinite_loop: c_int);
[INFO] [stdout]    | |_______________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_main_loop_callback`
[INFO] [stdout]   --> src/emscripten.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn set_main_loop_callback<F>(callback: F) where F: FnMut() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `wrapper`
[INFO] [stdout]   --> src/emscripten.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 | unsafe extern "C" fn wrapper<F>() where F : FnMut() {
[INFO] [stdout]    |                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push`
[INFO] [stdout]   --> src/engine/scene.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn push(&mut self, state: BoxedScene) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/scenes.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         renderer.copy(&pausedt, None, Some(main_text.rect_centered(&top)));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/scenes.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         renderer.copy(&subt, None, Some(sub_text.rect_centered(&bottom)));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/scenes.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         renderer.copy(&pausedt, None, Some(main_text.rect_centered(&main)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/scenes.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |         renderer.copy(&ss1, None, Some(sub1.rect_centered(&s1)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/scenes.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         renderer.copy(&ss2, None, Some(sub2.rect_centered(&s2)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/scenes.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         renderer.copy(&ss3, None, Some(sub3.rect_centered(&s3)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.game_of_life.elrkadc6-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79" "/opt/rustwide/target/debug/deps/game_of_life-af2ece6339da8b79.41wbjz6wjbi41yaz.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libsdl2-757e18aefb2ff040.rlib" "/opt/rustwide/target/debug/deps/librand-1137453299bb4ff3.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-bb1582abf84428b4.rlib" "/opt/rustwide/target/debug/deps/libbitflags-2660c594cf04f3b5.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-6cd99bbe299abb0c.rlib" "/opt/rustwide/target/debug/deps/liblibc-53af1cdbc0fb1f0e.rlib" "/opt/rustwide/target/debug/deps/libnum-73e39a764377abf1.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-8d74b26360177736.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-832c82f9efe61c7e.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-d9811cb0f495429f.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e12de7683a34c500.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-446a53c2e468675f.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-86fef9fb252a2d33.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-3bed9bfd30304751.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0e38eeb474a7b386.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-a846ed547b824740.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c9540f0a4fb9265d.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7d2ca66c92c356eb.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-147e2c808f949493.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-bd2a4369506670e9.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74bfdd0ce7d0ed48.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-6777f47f1c491841.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b104f1790174f2be.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-db37898996f45c13.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-25b7435131fc4938.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9d4b6f3c097e876e.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-3f953ad652ab829a.rlib" "-Wl,-Bdynamic" "-lSDL2_ttf" "-lSDL2" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lSDL2_ttf
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `game_of_life`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0d78b1909902444645c41d4d80201dc61e29eb7203d8d443cb760e080fcd2d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d78b1909902444645c41d4d80201dc61e29eb7203d8d443cb760e080fcd2d45", kill_on_drop: false }`
[INFO] [stdout] 0d78b1909902444645c41d4d80201dc61e29eb7203d8d443cb760e080fcd2d45