[INFO] cloning repository https://github.com/danipardo/2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danipardo/2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanipardo%2F2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanipardo%2F2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10d8b0deca2dde7c63e8c6e171ddf22003c48e0e
[INFO] testing danipardo/2048 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanipardo%2F2048" "/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/danipardo/2048 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/danipardo/2048
[INFO] finished tweaking git repo https://github.com/danipardo/2048
[INFO] tweaked toml for git repo https://github.com/danipardo/2048 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/danipardo/2048 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (sdl2) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2-sys v0.34.2
[INFO] [stderr]   Downloaded sdl2 v0.34.2
[INFO] [stderr]   Downloaded simple_logger v1.6.0
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d1b968d3842e60d22e6a38b6f091a66d84f7f928f0187d9cf62db3a39f15775
[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" "6d1b968d3842e60d22e6a38b6f091a66d84f7f928f0187d9cf62db3a39f15775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d1b968d3842e60d22e6a38b6f091a66d84f7f928f0187d9cf62db3a39f15775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d1b968d3842e60d22e6a38b6f091a66d84f7f928f0187d9cf62db3a39f15775", kill_on_drop: false }`
[INFO] [stdout] 6d1b968d3842e60d22e6a38b6f091a66d84f7f928f0187d9cf62db3a39f15775
[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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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] 09508f6c32c7b07a758b9447ee8a6fef5aad25cac834a1c801b26febe1cf664e
[INFO] running `Command { std: "docker" "start" "-a" "09508f6c32c7b07a758b9447ee8a6fef5aad25cac834a1c801b26febe1cf664e", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (sdl2) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling sdl2 v0.34.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling sdl2-sys v0.34.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling simple_logger v1.6.0
[INFO] [stderr]    Compiling t2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/board.rs:59:16
[INFO] [stdout]    |
[INFO] [stdout] 59 |             if (index > 0) {
[INFO] [stdout]    |                ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_board` is never read
[INFO] [stdout]    --> src/board.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let mut new_board = [[0u16; 4]; 4];
[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/board.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 80 |     let mut result = slide_row(input);
[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/board.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     let mut result = combine_row(&result);
[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/board.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |     let mut result = slide_row(&result);
[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/board.rs:124:13
[INFO] [stdout]     |
[INFO] [stdout] 124 |         let mut rand : f32 = rand::thread_rng().gen();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `score`
[INFO] [stdout]   --> src/board.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     score: u16,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_rev`
[INFO] [stdout]   --> src/board.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn find_rev(input: &[u16; 4], n: usize) -> Option<usize> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_cells`
[INFO] [stdout]    --> src/board.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn set_cells(&mut self, input: [[u16; 4]; 4]) {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]    --> src/board.rs:138:12
[INFO] [stdout]     |
[INFO] [stdout] 138 |     pub fn print(&self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `texture_manager`
[INFO] [stdout]   --> src/game.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     texture_manager: TextureManager<'a, WindowContext>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `match_sound`
[INFO] [stdout]   --> src/game.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     match_sound: Chunk,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/game.rs:164:13
[INFO] [stdout]     |
[INFO] [stdout] 164 |             self.channel.play(&self.move_sound, 0);
[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/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.t2048.7741y2nz-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d" "/opt/rustwide/target/debug/deps/t2048-65c7af6ed1477c7d.29fgh54uzdcmex12.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/librand-1f3e646b6090ed22.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-8761cb73dbb78486.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-50c01c6eb817c44f.rlib" "/opt/rustwide/target/debug/deps/librand_core-c6b7bfaceb2eaaee.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-4f1b3f995ebcf5af.rlib" "/opt/rustwide/target/debug/deps/libsdl2-3fbafc017d367b93.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-12b2252510480d49.rlib" "/opt/rustwide/target/debug/deps/libbitflags-df474a8ca45884a8.rlib" "/opt/rustwide/target/debug/deps/libsimple_logger-56143d154b9f158f.rlib" "/opt/rustwide/target/debug/deps/libcolored-d596556eeef52e6c.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-cd2401a06b1676f6.rlib" "/opt/rustwide/target/debug/deps/libatty-e6b6c278be47854d.rlib" "/opt/rustwide/target/debug/deps/libchrono-f4bb28d43a8fdc7b.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-a18fbef107fb75a3.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-3e74f9adb08020e7.rlib" "/opt/rustwide/target/debug/deps/libtime-8274cf3a73f80e2f.rlib" "/opt/rustwide/target/debug/deps/liblibc-1394abe0633c5989.rlib" "/opt/rustwide/target/debug/deps/liblog-44af996e67daa692.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-4c6be1962c556cf0.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-c659455244c9d2ca.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-448643d99e633b5d.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-c7c3d631a525883a.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-d7659a11bb201e01.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-9aceb6f83a33a9b6.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-876c3057c8a2a7c2.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-2f02aa3e24d2aa49.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-1d4694108f8cb543.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-79eaa6e630880f50.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-0df1a4ec96f80cf7.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bba9b0f0f4d77257.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-f848f9c987265235.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0d5ea4f2d39b8e27.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c22053fa5fc00a3b.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-c52e5d6301e1bd59.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-2675a9a46b5cec89.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-6e3d052afeb9f711.rlib" "-Wl,-Bdynamic" "-lSDL2" "-lSDL2_mixer" "-lSDL2_image" "-lSDL2_ttf" "-lutil" "-ldl" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lSDL2_mixer
[INFO] [stdout]           /usr/bin/ld: cannot find -lSDL2_image
[INFO] [stdout]           /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; 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `t2048`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "09508f6c32c7b07a758b9447ee8a6fef5aad25cac834a1c801b26febe1cf664e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09508f6c32c7b07a758b9447ee8a6fef5aad25cac834a1c801b26febe1cf664e", kill_on_drop: false }`
[INFO] [stdout] 09508f6c32c7b07a758b9447ee8a6fef5aad25cac834a1c801b26febe1cf664e