[INFO] updating cached repository https://github.com/pixlark/rust-2048 [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 5c4cad366c974d5471e6db2a1b727b8c9133b342 [INFO] testing pixlark/rust-2048 against 1.38.0 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpixlark%2Frust-2048" "work/builds/worker-2/source"` [INFO] [stderr] Cloning into 'work/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/pixlark/rust-2048 on toolchain 1.38.0 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/pixlark/rust-2048 [INFO] finished tweaking git repo https://github.com/pixlark/rust-2048 [INFO] tweaked toml for git repo https://github.com/pixlark/rust-2048 written to work/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/pixlark/rust-2048 already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+1.38.0" "build" "--frozen"` [INFO] [stdout] 31a759142a9ff43a8f6a94f29b51b8b2bfc008fad32bb776a25f771d5e96a71c [INFO] running `"docker" "start" "-a" "31a759142a9ff43a8f6a94f29b51b8b2bfc008fad32bb776a25f771d5e96a71c"` [INFO] [stderr] Compiling game-2048 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling sdl2 v0.31.0 [INFO] [stderr] warning: unused import: `sdl2::video::WindowContext` [INFO] [stderr] --> src/main.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | use sdl2::video::WindowContext; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: type `v2` should have an upper camel case name [INFO] [stderr] --> src/main.rs:44:8 [INFO] [stderr] | [INFO] [stderr] 44 | struct v2 { [INFO] [stderr] | ^^ help: convert the identifier to upper camel case: `V2` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'rand::Rng::choose': use SliceRandom::choose instead [INFO] [stderr] --> src/main.rs:267:32 [INFO] [stderr] | [INFO] [stderr] 267 | let choice: u64 = *rng.choose(&[2, 4]).unwrap(); [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `state_stack` [INFO] [stderr] --> src/main.rs:321:13 [INFO] [stderr] | [INFO] [stderr] 321 | let mut state_stack: Vec> = Vec::new(); [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_state_stack` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:321:9 [INFO] [stderr] | [INFO] [stderr] 321 | let mut state_stack: Vec> = Vec::new(); [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: method is never used: `get_fitness` [INFO] [stderr] --> src/main.rs:270:5 [INFO] [stderr] | [INFO] [stderr] 270 | fn get_fitness(&self) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `PlayingState` [INFO] [stderr] --> src/main.rs:301:1 [INFO] [stderr] | [INFO] [stderr] 301 | struct PlayingState { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: static variable `color_map` should have an upper case name [INFO] [stderr] --> src/main.rs:27:16 [INFO] [stderr] | [INFO] [stderr] 27 | static ref color_map: HashMap = { [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to upper case: `COLOR_MAP` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:159:21 [INFO] [stderr] | [INFO] [stderr] 159 | / canvas.copy( [INFO] [stderr] 160 | | &texture, [INFO] [stderr] 161 | | None, [INFO] [stderr] 162 | | Some(Rect::new( [INFO] [stderr] ... | [INFO] [stderr] 167 | | )), [INFO] [stderr] 168 | | ); [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/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.game_2048.e81pegc5-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41" "/opt/rustwide/target/debug/deps/game_2048-4a71bfd65b746b41.18uiov5avf2d8k21.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/liblazy_static-7f0036cdc569d1c1.rlib" "/opt/rustwide/target/debug/deps/libsdl2-0a6a99416d9659c2.rlib" "/opt/rustwide/target/debug/deps/librand-10885ffe2318bbec.rlib" "/opt/rustwide/target/debug/deps/librand-f28ac06cb45cd9ed.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-9a2b203c5253759f.rlib" "/opt/rustwide/target/debug/deps/libbitflags-8e02dfeceb8e06ce.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-1660a65f58d1cb98.rlib" "/opt/rustwide/target/debug/deps/libnum-3864f76b6dda44fb.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-53ea44e79df097b8.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-80c6dbab6652410c.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-cb412cedb055b888.rlib" "/opt/rustwide/target/debug/deps/librand-c7b20f905350b6fd.rlib" "/opt/rustwide/target/debug/deps/liblibc-0f8f5d48f5aa085f.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-3899a1968d6ea482.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-20b42d540749cb14.rlib" "/opt/rustwide/target/debug/deps/librand_hc-b628065875fde09f.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-f572cc1409791e58.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-016959cf12d877ab.rlib" "/opt/rustwide/target/debug/deps/librand_core-169bbb58a8b1ad4b.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-12ce12f1efc08aa3.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-5d3cd1b3ddab72e4.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-f8222943dfd167e2.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-0cd00b2d3108cd48.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-485c05ba6ce1b438.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-63e6b1072426ba59.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-a421aff1d43911ee.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3deef8ef4fe80dff.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-f65a176f0586269e.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-ad46d4080f4d7e57.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-da6c590582bf0885.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-837ca740df32db0a.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-db27c965e824589f.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-68a4f8466685ed76.rlib" "-Wl,-Bdynamic" "-lSDL2_ttf" "-lSDL2" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" [INFO] [stderr] = note: /usr/bin/ld: cannot find -lSDL2_ttf [INFO] [stderr] collect2: error: ld returned 1 exit status [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] error: Could not compile `game-2048`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "31a759142a9ff43a8f6a94f29b51b8b2bfc008fad32bb776a25f771d5e96a71c"` [INFO] running `"docker" "rm" "-f" "31a759142a9ff43a8f6a94f29b51b8b2bfc008fad32bb776a25f771d5e96a71c"` [INFO] [stdout] 31a759142a9ff43a8f6a94f29b51b8b2bfc008fad32bb776a25f771d5e96a71c