[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 master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShadowMitia%2Frust-2048" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShadowMitia/rust-2048 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-1/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", 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] a350d90bc8f6c6dfce6f71dafe506c81dafaa4103613b51fb37097e9065d4749
[INFO] running `Command { std: "docker" "start" "-a" "a350d90bc8f6c6dfce6f71dafe506c81dafaa4103613b51fb37097e9065d4749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a350d90bc8f6c6dfce6f71dafe506c81dafaa4103613b51fb37097e9065d4749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a350d90bc8f6c6dfce6f71dafe506c81dafaa4103613b51fb37097e9065d4749", kill_on_drop: false }`
[INFO] [stdout] a350d90bc8f6c6dfce6f71dafe506c81dafaa4103613b51fb37097e9065d4749
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6066228fa24230b543ea2147abe823bfa077e05f68a15b6e820aab5c2c28e31
[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" "f6066228fa24230b543ea2147abe823bfa077e05f68a15b6e820aab5c2c28e31", 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_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.game_2048.9e1ed12e-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e.338uqr4cps6befuc.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/librand-82dd00cd6882d4ac.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-0e731ff3f908fa6b.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-3d2cc82b4e39af48.rlib" "/opt/rustwide/target/debug/deps/librand_core-3b65fffc538ec697.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-b1e43db1601fa75b.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-de9cbe0cb77e19a3.rlib" "/opt/rustwide/target/debug/deps/libsdl2-53b4dc7312d3b427.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-dce243c0f403950a.rlib" "/opt/rustwide/target/debug/deps/libbitflags-603a79344a96ee73.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-f67718dd40129317.rlib" "/opt/rustwide/target/debug/deps/liblibc-e10fef1476b84eda.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9c44f1fe63de3edb.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-5dfdbb680ac299a1.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-353beaf877db2fdf.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-cd4abd33332d2d3f.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-3b908b5b50ddd80c.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-9cafd3521b5532d3.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-7b0935832903a9ac.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-8a349b13d67c76e3.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-9d41e7cb09eafd8e.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-095194fedb4c0ec4.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-968cf83f088269ec.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-e63bbb95a6beff5c.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-9f216e67c2916fa5.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-4688b763605c6a0e.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a9b2dc3244289321.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-52d5241975807511.rlib" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9924c22ae1efcf66.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-003d83a588984e1f.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/b70888601af92f6cdc0364abab3446e418b91d36/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/game_2048-2caede4c79c7787e" "-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" "f6066228fa24230b543ea2147abe823bfa077e05f68a15b6e820aab5c2c28e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6066228fa24230b543ea2147abe823bfa077e05f68a15b6e820aab5c2c28e31", kill_on_drop: false }`
[INFO] [stdout] f6066228fa24230b543ea2147abe823bfa077e05f68a15b6e820aab5c2c28e31