[INFO] cloning repository https://github.com/slier81/Tetris
[INFO] running `"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"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslier81%2FTetris'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b4e37baeb08d5e243ff4bd5acd333fe5c88461af
[INFO] testing slier81/Tetris against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslier81%2FTetris" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/slier81/Tetris 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/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-2/source/Cargo.toml
[INFO] crate git repo https://github.com/slier81/Tetris 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] b5e851ea8070efbff847ce19a51499209f5cecdbc9e03a154725e81dc45acbc3
[INFO] running `"docker" "start" "-a" "b5e851ea8070efbff847ce19a51499209f5cecdbc9e03a154725e81dc45acbc3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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 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_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[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] [stderr] warning: unused imports: `WindowContext`, `Window`
[INFO] [stderr]  --> src/main.rs:7:19
[INFO] [stderr]   |
[INFO] [stderr] 7 | use sdl2::video::{Window, WindowContext};
[INFO] [stderr]   |                   ^^^^^^  ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Canvas`, `TextureCreator`, `Texture`
[INFO] [stderr]  --> src/main.rs:9:20
[INFO] [stderr]   |
[INFO] [stderr] 9 | use sdl2::render::{Canvas, TextureCreator, Texture};
[INFO] [stderr]   |                    ^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let mut square_type = match timer.elapsed() {
[INFO] [stderr]    |             ----^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |         let mut square = if square_type {
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `write_to_file`
[INFO] [stderr]   --> src/util.rs:34:8
[INFO] [stderr]    |
[INFO] [stderr] 34 | pub fn write_to_file(content: &str, filename: &str) -> io::Result<()> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_from_file`
[INFO] [stderr]   --> src/util.rs:39:8
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn read_from_file(filename: &str) -> io::Result<String> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `slice_to_string`
[INFO] [stderr]   --> src/util.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn slice_to_string(slice: &[u32]) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `save_highscores_and_lines`
[INFO] [stderr]   --> src/util.rs:50:8
[INFO] [stderr]    |
[INFO] [stderr] 50 | pub fn save_highscores_and_lines(highscores: &[u32], number_of_lines: &[u32]) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `line_to_slice`
[INFO] [stderr]   --> src/util.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub fn line_to_slice(line: &str) -> Vec<u32> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `load_highscores_and_lines`
[INFO] [stderr]   --> src/util.rs:60:8
[INFO] [stderr]    |
[INFO] [stderr] 60 | pub fn load_highscores_and_lines() -> Option<(Vec<u32>, Vec<u32>)> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/util.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     f.read_to_string(&mut content);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.rust_sdl.39qp4d7i-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7" "/opt/rustwide/target/debug/deps/rust_sdl-3a925a88b98927d7.3o51hafgbxs81sw9.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libsdl2-ebe9bcffa08fa503.rlib" "/opt/rustwide/target/debug/deps/librand-d95178f9e5650a4b.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-776f31bbdaf5a84d.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-cde748bbbf081c88.rlib" "/opt/rustwide/target/debug/deps/librand_hc-b99f65cc6f82ff49.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-1ebcbd1eab15b03f.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-b128e05b98a05ec5.rlib" "/opt/rustwide/target/debug/deps/librand_core-d84f8367316f50c1.rlib" "/opt/rustwide/target/debug/deps/librand_os-86d9cae2f460d990.rlib" "/opt/rustwide/target/debug/deps/librand_jitter-d7802f089a614503.rlib" "/opt/rustwide/target/debug/deps/librand_core-487bb7a181b5439c.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-5c379739ed549afe.rlib" "/opt/rustwide/target/debug/deps/libbitflags-a5dbca2b31cd7d4c.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-6d2e4566366293b5.rlib" "/opt/rustwide/target/debug/deps/liblibc-64020fc9ebf99f99.rlib" "/opt/rustwide/target/debug/deps/libnum-435d056c3ad2868e.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-ebc4106d933d1c80.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-6e517b93e2cd9d5b.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-7dd1ad4d9b1da490.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-44f8eb3d0b2fad61.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-abc626f09920d361.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-546e83c8973f1a65.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-12768dfc68674934.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e06867e4497f2ee8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-cbc579f43f6df57b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7abd6d5a7ebf9a23.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-46423c7bc03bd327.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-fc3773ed7bc68f07.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-9cdc98176efd27e2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-02d88502a763e06b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8cdc9d38dd6cd3ce.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-336f7d63e72901ef.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-57917b1be5233117.rlib" "-Wl,-Bdynamic" "-lSDL2" "-lSDL2_image" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lSDL2_image
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `rust_sdl`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b5e851ea8070efbff847ce19a51499209f5cecdbc9e03a154725e81dc45acbc3"`
[INFO] running `"docker" "rm" "-f" "b5e851ea8070efbff847ce19a51499209f5cecdbc9e03a154725e81dc45acbc3"`
[INFO] [stdout] b5e851ea8070efbff847ce19a51499209f5cecdbc9e03a154725e81dc45acbc3