[INFO] cloning repository https://github.com/eraklon/tetris-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eraklon/tetris-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feraklon%2Ftetris-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feraklon%2Ftetris-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8454ec829a40c6ad35c47ed605ca7345bf95391
[INFO] testing eraklon/tetris-rust against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feraklon%2Ftetris-rust" "/workspace/builds/worker-40/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-40/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eraklon/tetris-rust on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eraklon/tetris-rust
[INFO] finished tweaking git repo https://github.com/eraklon/tetris-rust
[INFO] tweaked toml for git repo https://github.com/eraklon/tetris-rust written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] crate git repo https://github.com/eraklon/tetris-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2-sys v0.34.0
[INFO] [stderr]   Downloaded sdl2 v0.34.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cba0c683f006f5cde51c025a46cb6af6934fcbffa99e844d43e708f321381896
[INFO] running `Command { std: "docker" "start" "-a" "cba0c683f006f5cde51c025a46cb6af6934fcbffa99e844d43e708f321381896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cba0c683f006f5cde51c025a46cb6af6934fcbffa99e844d43e708f321381896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cba0c683f006f5cde51c025a46cb6af6934fcbffa99e844d43e708f321381896", kill_on_drop: false }`
[INFO] [stdout] cba0c683f006f5cde51c025a46cb6af6934fcbffa99e844d43e708f321381896
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d5e03d140f011d666f26abb966e6801c0c77126a5153142e79010f5c9355b56
[INFO] running `Command { std: "docker" "start" "-a" "8d5e03d140f011d666f26abb966e6801c0c77126a5153142e79010f5c9355b56", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling sdl2 v0.34.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling sdl2-sys v0.34.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling chrono v0.4.13
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling Tetris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sdl2::render::TextureQuery`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sdl2::render::TextureQuery;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::ttf::Sdl2TtfContext`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use sdl2::ttf::Sdl2TtfContext;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::process::exit;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DateTime`
[INFO] [stdout]   --> src/main.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | use chrono::{DateTime, Utc};
[INFO] [stdout]    |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event_pump`
[INFO] [stdout]   --> src/main.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut event_pump = sdl_context.event_pump().unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_event_pump`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `action` is never read
[INFO] [stdout]    --> src/main.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 action = NONE;
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `action` is never read
[INFO] [stdout]    --> src/main.rs:252:17
[INFO] [stdout]     |
[INFO] [stdout] 252 |                 action = NONE;
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/main.rs:341:25
[INFO] [stdout]     |
[INFO] [stdout] 341 |             .for_each(|(i, pop_chunk)| {
[INFO] [stdout]     |                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `parent1_idx` is never read
[INFO] [stdout]    --> src/main.rs:375:17
[INFO] [stdout]     |
[INFO] [stdout] 375 |         let mut parent1_idx = 0usize;
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `parent2_idx` is never read
[INFO] [stdout]    --> src/main.rs:376:17
[INFO] [stdout]     |
[INFO] [stdout] 376 |         let mut parent2_idx = 0usize;
[INFO] [stdout]     |                 ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:23:14
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn input(mut event_pump: &mut EventPump) -> MoveAction {
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut window;
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut event_pump = sdl_context.event_pump().unwrap();
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let mut texture_creator;
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Tetris` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `tetris`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_tetris_with_GUI` should have a snake case name
[INFO] [stdout]   --> src/main.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn run_tetris_with_GUI(run_count: usize, fitness_params: [u64; 6]) -> u32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `run_tetris_with_gui`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:165:17
[INFO] [stdout]     |
[INFO] [stdout] 165 | /                 canvas.fill_rect(Rect::new(
[INFO] [stdout] 166 | |                     (col as u32 * RECT_DIM) as i32,
[INFO] [stdout] 167 | |                     (row as u32 * RECT_DIM) as i32,
[INFO] [stdout] 168 | |                     RECT_DIM,
[INFO] [stdout] 169 | |                     RECT_DIM,
[INFO] [stdout] 170 | |                 ));
[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: static variable `tetrominos` should have an upper case name
[INFO] [stdout]   --> src/tetris.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub static tetrominos: [[u8; 16]; 7] = [
[INFO] [stdout]    |            ^^^^^^^^^^ help: convert the identifier to upper case: `TETROMINOS`
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/tetris.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[warn(non_upper_case_globals)]
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.Tetris.51f68d51-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e.3qd0phqwf7zhbljb.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/librayon-af898e3882434712.rlib" "/opt/rustwide/target/debug/deps/librayon_core-ad6cb5ffd838dac4.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-8985f59bea1038dd.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_queue-2977368c2fc7fdea.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-2960232ea5bf8152.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-29e32cc98353c04a.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-77ffbe2fe379a2bf.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-1ed0c04e9aa982c1.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-1742f3bbb341041f.rlib" "/opt/rustwide/target/debug/deps/libmaybe_uninit-695311e2d4eb5931.rlib" "/opt/rustwide/target/debug/deps/libeither-3b65cf9dba3d271a.rlib" "/opt/rustwide/target/debug/deps/libchrono-7122ede8040441e3.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-bb279e714bec3fd3.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-3950ad30d29c8efb.rlib" "/opt/rustwide/target/debug/deps/libtime-6934aa4e63c679b1.rlib" "/opt/rustwide/target/debug/deps/librand-bb903388f7a116f8.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-ce3ef233ca6c8448.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-12446cf64d5fca02.rlib" "/opt/rustwide/target/debug/deps/librand_core-3bdb48544d3638f3.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-c9bcf284ab28f538.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-ffb7f11ad1437080.rlib" "/opt/rustwide/target/debug/deps/libsdl2-e4009623dd4ddfc0.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-bff4e39121a0420c.rlib" "/opt/rustwide/target/debug/deps/libbitflags-e09638bf9aca31b4.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-e92083d5a39a8b50.rlib" "/opt/rustwide/target/debug/deps/liblibc-7af3361ca3205ec3.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-197d933f09d9a590.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-46a006cddfd334f0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-5b9870310e470b38.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-260022ba8f1ab4ee.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-71377435a799394f.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-658ee5924fde57cd.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-9e8627da6bd1b94a.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-19fdaac49f59be84.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-cb00e2691ea45905.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-50f6726defae5ae1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-2afc16311deea26e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bb5cb0fe086ee8cf.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-896053247b5dfd0b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-735e1f2ac3cf23be.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-9dfb6622644c732c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-beea7d9617fe25c5.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8ef7dd43fc671f88.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-a9a3b2ad67977f47.rlib" "-Wl,-Bdynamic" "-lSDL2" "-lSDL2_ttf" "-lutil" "-ldl" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-08-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/Tetris-b6a733b158ace01e" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[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; 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Tetris` due to 2 previous errors; 18 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8d5e03d140f011d666f26abb966e6801c0c77126a5153142e79010f5c9355b56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d5e03d140f011d666f26abb966e6801c0c77126a5153142e79010f5c9355b56", kill_on_drop: false }`
[INFO] [stdout] 8d5e03d140f011d666f26abb966e6801c0c77126a5153142e79010f5c9355b56
