[INFO] cloning repository https://github.com/droidkid/rust-tetris
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/droidkid/rust-tetris" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdroidkid%2Frust-tetris", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdroidkid%2Frust-tetris'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7739277f8489ba9f6b2ba7f772f909813828b03
[INFO] testing droidkid/rust-tetris against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdroidkid%2Frust-tetris" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/droidkid/rust-tetris 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] started tweaking git repo https://github.com/droidkid/rust-tetris
[INFO] finished tweaking git repo https://github.com/droidkid/rust-tetris
[INFO] tweaked toml for git repo https://github.com/droidkid/rust-tetris written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/droidkid/rust-tetris 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] running `Command { std: "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" "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] [stdout] 6c5c4cac949669ae134efc62d56149792543c53527618ef2be88d7557ee8492e
[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" "6c5c4cac949669ae134efc62d56149792543c53527618ef2be88d7557ee8492e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c5c4cac949669ae134efc62d56149792543c53527618ef2be88d7557ee8492e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c5c4cac949669ae134efc62d56149792543c53527618ef2be88d7557ee8492e", kill_on_drop: false }`
[INFO] [stdout] 6c5c4cac949669ae134efc62d56149792543c53527618ef2be88d7557ee8492e
[INFO] running `Command { std: "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" "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] c5d32902245d05ff7909758e69c3ab292d293a4b4bd9c9bed3f36a63eb60d84f
[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" "c5d32902245d05ff7909758e69c3ab292d293a4b4bd9c9bed3f36a63eb60d84f", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling rust-tetris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/main.rs:422:22
[INFO] [stdout]     |
[INFO] [stdout] 422 |             for j in (1..self.width-1) {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:473:16
[INFO] [stdout]     |
[INFO] [stdout] 473 |             if (self.game_over_countdown > 0) {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:483:12
[INFO] [stdout]     |
[INFO] [stdout] 483 |         if (input.left_key_pressed) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:486:12
[INFO] [stdout]     |
[INFO] [stdout] 486 |         if (input.right_key_pressed) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:489:12
[INFO] [stdout]     |
[INFO] [stdout] 489 |         if (input.up_key_pressed) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:493:12
[INFO] [stdout]     |
[INFO] [stdout] 493 |         if (input.down_key_pressed) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:500:12
[INFO] [stdout]     |
[INFO] [stdout] 500 |         if (self.gravity_countdown > 0) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:503:12
[INFO] [stdout]     |
[INFO] [stdout] 503 |         if (self.lock_delay_countdown > 0 && self.locking_state) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:539:12
[INFO] [stdout]     |
[INFO] [stdout] 539 |         if (self.level >= 10) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/main.rs:646:12
[INFO] [stdout]     |
[INFO] [stdout] 646 |         if (event_pump.keyboard_state().is_scancode_pressed(Scancode::Down)) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `move_down_success` is never read
[INFO] [stdout]    --> src/main.rs:508:13
[INFO] [stdout]     |
[INFO] [stdout] 508 |         let mut move_down_success = true;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:613:9
[INFO] [stdout]     |
[INFO] [stdout] 613 |     let mut font = ttf_context.load_font(font_path, 28).unwrap();
[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: associated function is never used: `is_row_empty`
[INFO] [stdout]    --> src/main.rs:411:8
[INFO] [stdout]     |
[INFO] [stdout] 411 |     fn is_row_empty(&self, row:usize) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `start_pos` should have an upper case name
[INFO] [stdout]   --> src/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | static start_pos: Pos2D = Pos2D {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to upper case: `START_POS`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `tetris_board_width` should have an upper case name
[INFO] [stdout]   --> src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | static tetris_board_width : usize = 12;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `TETRIS_BOARD_WIDTH`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `tetris_board_height` should have an upper case name
[INFO] [stdout]   --> src/main.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | static tetris_board_height : usize = 24;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper case: `TETRIS_BOARD_HEIGHT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:273:13
[INFO] [stdout]     |
[INFO] [stdout] 273 |             canvas.fill_rect(rect);
[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: variable `randomTetrisPieceGenerator` should have a snake case name
[INFO] [stdout]    --> src/main.rs:342:17
[INFO] [stdout]     |
[INFO] [stdout] 342 |         let mut randomTetrisPieceGenerator = RandomTetrisPieceGenerator::new();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `random_tetris_piece_generator`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:556:9
[INFO] [stdout]     |
[INFO] [stdout] 556 |         canvas.fill_rect(rect);
[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/main.rs:661:13
[INFO] [stdout]     |
[INFO] [stdout] 661 |             canvas.fill_rect(Rect::new(0,0,width,height));
[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/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.rust_tetris.2wbbkjmx-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca" "/opt/rustwide/target/debug/deps/rust_tetris-c062160dce84fbca.5c0gcexeujsec2v8.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/libsdl2-7504257fb85593d3.rlib" "/opt/rustwide/target/debug/deps/librand-440fd8100eadb9c9.rlib" "/opt/rustwide/target/debug/deps/librand-28a5d62f4f772b17.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-345f0ffcb823b4f0.rlib" "/opt/rustwide/target/debug/deps/libbitflags-2660c594cf04f3b5.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-9850e1ed257f46c2.rlib" "/opt/rustwide/target/debug/deps/liblibc-a1242cd790f47890.rlib" "/opt/rustwide/target/debug/deps/libnum-95c9af438eaba823.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-03aae3250d88cfab.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-f166a3be6c2d9c93.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-0d14380347a326c6.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_image" "-lSDL2" "-lutil" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lSDL2_ttf
[INFO] [stdout]           /usr/bin/ld: cannot find -lSDL2_image
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-tetris`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c5d32902245d05ff7909758e69c3ab292d293a4b4bd9c9bed3f36a63eb60d84f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5d32902245d05ff7909758e69c3ab292d293a4b4bd9c9bed3f36a63eb60d84f", kill_on_drop: false }`
[INFO] [stdout] c5d32902245d05ff7909758e69c3ab292d293a4b4bd9c9bed3f36a63eb60d84f