[INFO] updating cached repository stanistan/exercises.arcade-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/stanistan/exercises.arcade-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/stanistan/exercises.arcade-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/stanistan/exercises.arcade-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/stanistan/exercises.arcade-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/stanistan/exercises.arcade-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/stanistan/exercises.arcade-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/stanistan/exercises.arcade-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fa75fa9c5e9763338e3d90240b291d532d3e884c
[INFO] sha for GitHub repo stanistan/exercises.arcade-rs: fa75fa9c5e9763338e3d90240b291d532d3e884c
[INFO] validating manifest of stanistan/exercises.arcade-rs on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of stanistan/exercises.arcade-rs on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing stanistan/exercises.arcade-rs
[INFO] finished frobbing stanistan/exercises.arcade-rs
[INFO] frobbed toml for stanistan/exercises.arcade-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/stanistan/exercises.arcade-rs/Cargo.toml
[INFO] started frobbing stanistan/exercises.arcade-rs
[INFO] finished frobbing stanistan/exercises.arcade-rs
[INFO] frobbed toml for stanistan/exercises.arcade-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/stanistan/exercises.arcade-rs/Cargo.toml
[INFO] crate stanistan/exercises.arcade-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/stanistan/exercises.arcade-rs/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing stanistan/exercises.arcade-rs against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/stanistan/exercises.arcade-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] d685d156c07a12217a1c2be45faa4b8825eb830696d0da8532ad063fa4f70867
[INFO] running `"docker" "start" "-a" "d685d156c07a12217a1c2be45faa4b8825eb830696d0da8532ad063fa4f70867"`
[INFO] [stderr]    Compiling sdl2-sys v0.6.2
[INFO] [stderr]    Compiling sdl2 v0.9.1
[INFO] [stderr]    Compiling sdl2_ttf v0.9.1
[INFO] [stderr]    Compiling sdl2_image v0.3.0
[INFO] [stderr]    Compiling arcade-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/views/game.rs:263:13
[INFO] [stderr]     |
[INFO] [stderr] 263 |         let mut sprite = self.sprite.clone();
[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] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.arcade_rs.8yrecuha-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706" "/opt/crater/target/debug/deps/arcade_rs-01c8ba45b4867706.4g31lshzbivemulj.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libsdl2_ttf-4cd395be68239c7e.rlib" "/opt/crater/target/debug/deps/libbitflags-cbdf57b751025ea0.rlib" "/opt/crater/target/debug/deps/libsdl2_image-1a17c7410b838b68.rlib" "/opt/crater/target/debug/deps/libsdl2-7f2a8eccae10ed61.rlib" "/opt/crater/target/debug/deps/libsdl2_sys-9c7d3cb8b0bf46d0.rlib" "/opt/crater/target/debug/deps/libbitflags-7f1fc9280dce2d55.rlib" "/opt/crater/target/debug/deps/liblibc-f3c88a91d9cbe10b.rlib" "/opt/crater/target/debug/deps/libnum-ea55f17a1ddea2e0.rlib" "/opt/crater/target/debug/deps/libnum_rational-8cde9460cef05150.rlib" "/opt/crater/target/debug/deps/libnum_bigint-59c3d0d13cc433f5.rlib" "/opt/crater/target/debug/deps/libnum_complex-e9c9b6bb110468dc.rlib" "/opt/crater/target/debug/deps/librustc_serialize-04f5d71c016b4cf1.rlib" "/opt/crater/target/debug/deps/libnum_iter-119af297c543b436.rlib" "/opt/crater/target/debug/deps/libnum_integer-a81dd69c1c0fe133.rlib" "/opt/crater/target/debug/deps/libnum_traits-8c434304d2c544b1.rlib" "/opt/crater/target/debug/deps/librand-7173874d3e26156a.rlib" "/opt/crater/target/debug/deps/librand-00e4c4fa1088f68e.rlib" "/opt/crater/target/debug/deps/liblibc-e3ba75b536aabfa5.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9895e8982b0a79e7.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-57306b8ed3378a0e.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-54463ae5adae3649.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-d99667b199a9875a.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-51f4300e102199f5.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-b3ccf1f7737a6a91.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-157c37a3ceb78853.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-505bcee45aafb736.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c29abd529ba4452b.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-895383a3232f6572.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5594cb4f559bc761.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-38e90baf978bc428.rlib" "-Wl,-Bdynamic" "-lSDL2_ttf" "-lSDL2_image" "-lSDL2" "-lc" "-lm" "-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]           /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
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `arcade-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d685d156c07a12217a1c2be45faa4b8825eb830696d0da8532ad063fa4f70867"`
[INFO] running `"docker" "rm" "-f" "d685d156c07a12217a1c2be45faa4b8825eb830696d0da8532ad063fa4f70867"`
[INFO] [stdout] d685d156c07a12217a1c2be45faa4b8825eb830696d0da8532ad063fa4f70867