[INFO] cloning repository https://github.com/slier81/Tetris
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/slier81/Tetris" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslier81%2FTetris", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslier81%2FTetris'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4e37baeb08d5e243ff4bd5acd333fe5c88461af
[INFO] testing slier81/Tetris against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslier81%2FTetris" "/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/slier81/Tetris on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/slier81/Tetris
[INFO] finished tweaking git repo https://github.com/slier81/Tetris
[INFO] tweaked toml for git repo https://github.com/slier81/Tetris written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/slier81/Tetris already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2 v0.32.2
[INFO] [stderr]   Downloaded sdl2-sys v0.32.6
[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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40cd29d96dc059151ffd5057f5ee2dfa6ece7f3f1c26bc98f6e05cfb8a936d12
[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" "40cd29d96dc059151ffd5057f5ee2dfa6ece7f3f1c26bc98f6e05cfb8a936d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40cd29d96dc059151ffd5057f5ee2dfa6ece7f3f1c26bc98f6e05cfb8a936d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40cd29d96dc059151ffd5057f5ee2dfa6ece7f3f1c26bc98f6e05cfb8a936d12", kill_on_drop: false }`
[INFO] [stdout] 40cd29d96dc059151ffd5057f5ee2dfa6ece7f3f1c26bc98f6e05cfb8a936d12
[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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", 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] cbf1e4eb5ffd794c9e19f2b61015beb6f5a122280a3c79fe9d8f643a232a0a31
[INFO] running `Command { std: "docker" "start" "-a" "cbf1e4eb5ffd794c9e19f2b61015beb6f5a122280a3c79fe9d8f643a232a0a31", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]    Compiling rust_sdl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stdout] warning: unused imports: `WindowContext`, `Window`
[INFO] [stdout]  --> src/main.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 | use sdl2::video::{Window, WindowContext};
[INFO] [stdout]   |                   ^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Canvas`, `TextureCreator`, `Texture`
[INFO] [stdout]  --> src/main.rs:9:20
[INFO] [stdout]   |
[INFO] [stdout] 9 | use sdl2::render::{Canvas, TextureCreator, Texture};
[INFO] [stdout]   |                    ^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let mut square_type = match timer.elapsed() {
[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:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let mut square = if square_type {
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `write_to_file`
[INFO] [stdout]   --> src/util.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn write_to_file(content: &str, filename: &str) -> io::Result<()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_from_file`
[INFO] [stdout]   --> src/util.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn read_from_file(filename: &str) -> io::Result<String> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `slice_to_string`
[INFO] [stdout]   --> src/util.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn slice_to_string(slice: &[u32]) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `save_highscores_and_lines`
[INFO] [stdout]   --> src/util.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn save_highscores_and_lines(highscores: &[u32], number_of_lines: &[u32]) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `line_to_slice`
[INFO] [stdout]   --> src/util.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn line_to_slice(line: &str) -> Vec<u32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load_highscores_and_lines`
[INFO] [stdout]   --> src/util.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn load_highscores_and_lines() -> Option<(Vec<u32>, Vec<u32>)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/util.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     f.read_to_string(&mut content);
[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] 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/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.rust_sdl.5w1yl1vd-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f" "/opt/rustwide/target/debug/deps/rust_sdl-fa07d156e6427d6f.593th2x0wn47dz54.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libsdl2-96185a48b1c0fc3b.rlib" "/opt/rustwide/target/debug/deps/librand-6d91e3f77694fa65.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-da7de8a60151494c.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-69866e4f46aaab93.rlib" "/opt/rustwide/target/debug/deps/librand_hc-13ffe96918f37cdc.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-901ea3ba0877ab36.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-4944f4f9bac790d9.rlib" "/opt/rustwide/target/debug/deps/librand_core-0577083de755613d.rlib" "/opt/rustwide/target/debug/deps/librand_os-07a35bc287b07aef.rlib" "/opt/rustwide/target/debug/deps/librand_jitter-52adf27236e22c18.rlib" "/opt/rustwide/target/debug/deps/librand_core-c2d08cfa7423325a.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-d8ab88cac8b31cd5.rlib" "/opt/rustwide/target/debug/deps/libbitflags-82bd363beea55b11.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-ea4caa07bd58fe44.rlib" "/opt/rustwide/target/debug/deps/liblibc-bbeaa4ade2389553.rlib" "/opt/rustwide/target/debug/deps/libnum-8024e97abeafe5ce.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-6bb807bc0460512d.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-6793fdb487b969c2.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-aeabbed5ea6fd2dc.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-7444fd17919e9af0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-0ee2f67026959ab7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-df1bcd1e82256d04.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-ed9ecf1b54021131.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0ede66bb24e94b96.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-7c2de7f50940865c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-b138d50085fd4683.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-6576870d8f2b9ae2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-042a30c5f67b2c91.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7b3f33d3dbe385dc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-90b3063cd7b22527.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-17f9484f8dc4da1e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-df38345acd9d92e1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5e10ca10bdd9e54.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9e5b4162eeef2cef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-3a4e739a77468800.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-0f3a0c116d5e04d6.rlib" "-Wl,-Bdynamic" "-lSDL2" "-lSDL2_image" "-lutil" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /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; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_sdl`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "cbf1e4eb5ffd794c9e19f2b61015beb6f5a122280a3c79fe9d8f643a232a0a31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbf1e4eb5ffd794c9e19f2b61015beb6f5a122280a3c79fe9d8f643a232a0a31", kill_on_drop: false }`
[INFO] [stdout] cbf1e4eb5ffd794c9e19f2b61015beb6f5a122280a3c79fe9d8f643a232a0a31