[INFO] cloning repository https://github.com/ShadowMitia/rust-2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShadowMitia/rust-2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShadowMitia%2Frust-2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShadowMitia%2Frust-2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c297d57ec7b9f49c74e847805737dba22dfc605b
[INFO] testing ShadowMitia/rust-2048 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%2FShadowMitia%2Frust-2048" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShadowMitia/rust-2048 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/ShadowMitia/rust-2048
[INFO] finished tweaking git repo https://github.com/ShadowMitia/rust-2048
[INFO] tweaked toml for git repo https://github.com/ShadowMitia/rust-2048 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ShadowMitia/rust-2048 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]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2 v0.34.0
[INFO] [stderr]   Downloaded sdl2-sys v0.34.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 52115345fed2c91345e12f310155a245a586838da14cf173d238ef28265b4cc6
[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" "52115345fed2c91345e12f310155a245a586838da14cf173d238ef28265b4cc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52115345fed2c91345e12f310155a245a586838da14cf173d238ef28265b4cc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52115345fed2c91345e12f310155a245a586838da14cf173d238ef28265b4cc6", kill_on_drop: false }`
[INFO] [stdout] 52115345fed2c91345e12f310155a245a586838da14cf173d238ef28265b4cc6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 24f280fac0b9c27cbd3174e64e198bfce437cadd07aea1fca513e463a0781e4b
[INFO] running `Command { std: "docker" "start" "-a" "24f280fac0b9c27cbd3174e64e198bfce437cadd07aea1fca513e463a0781e4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling sdl2 v0.34.0
[INFO] [stderr]    Compiling sdl2-sys v0.34.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[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 game-2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `game_running`
[INFO] [stdout]    --> src/main.rs:286:13
[INFO] [stdout]     |
[INFO] [stdout] 286 |     let mut game_running = true;
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_game_running`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/main.rs:311:25
[INFO] [stdout]     |
[INFO] [stdout] 311 |                     let res = add_to_empty_cell(&mut rng, &mut grid, val);
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/main.rs:321:25
[INFO] [stdout]     |
[INFO] [stdout] 321 |                     let res = add_to_empty_cell(&mut rng, &mut grid, val);
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/main.rs:330:25
[INFO] [stdout]     |
[INFO] [stdout] 330 |                     let res = add_to_empty_cell(&mut rng, &mut grid, val);
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |     let mut game_running = true;
[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:290:13
[INFO] [stdout]     |
[INFO] [stdout] 290 |         let mut moved = false;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[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/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.game_2048.eb8a9550-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-c8e62378a27beb1a.3t8dq7r7xwhthbkm.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/librand-0115226625eb5645.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-aa5a52de985a7b3f.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-12446cf64d5fca02.rlib" "/opt/rustwide/target/debug/deps/librand_core-634f4448086318bd.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-ee9a37491e987c17.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-ffb7f11ad1437080.rlib" "/opt/rustwide/target/debug/deps/libsdl2-5a2d713359820177.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-6481b145c73c6385.rlib" "/opt/rustwide/target/debug/deps/libbitflags-e09638bf9aca31b4.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-e92083d5a39a8b50.rlib" "/opt/rustwide/target/debug/deps/liblibc-23cca450bd1ada75.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/game_2048-c8e62378a27beb1a" "-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; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `game-2048` due to 2 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "24f280fac0b9c27cbd3174e64e198bfce437cadd07aea1fca513e463a0781e4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24f280fac0b9c27cbd3174e64e198bfce437cadd07aea1fca513e463a0781e4b", kill_on_drop: false }`
[INFO] [stdout] 24f280fac0b9c27cbd3174e64e198bfce437cadd07aea1fca513e463a0781e4b
