[INFO] updating cached repository nrxus/engine_duck
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nrxus/engine_duck
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nrxus/engine_duck" "work/ex/beta-1.37-6/sources/1.36.0/gh/nrxus/engine_duck"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/nrxus/engine_duck'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nrxus/engine_duck" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nrxus/engine_duck"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nrxus/engine_duck'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8ebacbe78c85de1dbe4d4372e844f761da140ab2
[INFO] sha for GitHub repo nrxus/engine_duck: 8ebacbe78c85de1dbe4d4372e844f761da140ab2
[INFO] validating manifest of nrxus/engine_duck 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 nrxus/engine_duck 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 nrxus/engine_duck
[INFO] finished frobbing nrxus/engine_duck
[INFO] frobbed toml for nrxus/engine_duck written to work/ex/beta-1.37-6/sources/1.36.0/gh/nrxus/engine_duck/Cargo.toml
[INFO] started frobbing nrxus/engine_duck
[INFO] finished frobbing nrxus/engine_duck
[INFO] frobbed toml for nrxus/engine_duck written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nrxus/engine_duck/Cargo.toml
[INFO] crate nrxus/engine_duck 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nrxus/engine_duck against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nrxus/engine_duck:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 20a7e7b77b6d74df674abed410a4c11e2c99047cb46d8fd0d7450a4e7c231dad
[INFO] running `"docker" "start" "-a" "20a7e7b77b6d74df674abed410a4c11e2c99047cb46d8fd0d7450a4e7c231dad"`
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling yaml-rust v0.4.2
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling quickcheck v0.2.27
[INFO] [stderr]    Compiling glm v0.2.3
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling moho-derive v0.1.0 (https://github.com/nrxus/moho#1259f0e0)
[INFO] [stderr]    Compiling failure v0.1.3
[INFO] [stderr]    Compiling moho v0.0.10 (https://github.com/nrxus/moho#1259f0e0)
[INFO] [stderr]    Compiling serde_yaml v0.8.7
[INFO] [stderr]    Compiling engine_duck v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `load`
[INFO] [stderr]   --> src/data/level.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn load(path: &'static str) -> Result<Self> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create`
[INFO] [stderr]   --> src/game/score_repository.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn create(entries: &[Score]) -> Result<()> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.duck_husky_wedding.20wgr28x-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae" "/opt/crater/target/debug/deps/duck_husky_wedding-7335f5938ce5d7ae.4o2lufxvfd8it4ix.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/target/debug/build/backtrace-sys-039dcd218a0ae435/out" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libserde_yaml-6de52df80732778c.rlib" "/opt/crater/target/debug/deps/libyaml_rust-c7740512f5493899.rlib" "/opt/crater/target/debug/deps/liblinked_hash_map-d9e6bb4548f90968.rlib" "/opt/crater/target/debug/deps/libdtoa-0a0f3f42c2e2308c.rlib" "/opt/crater/target/debug/deps/libserde-9a7addf741881ea0.rlib" "/opt/crater/target/debug/deps/libmoho-1fcddc5098128190.rlib" "/opt/crater/target/debug/deps/libfailure-9162ba0ba1e8724d.rlib" "/opt/crater/target/debug/deps/libbacktrace-4781d85258bd473a.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-54a14326a09cc4a9.rlib" "/opt/crater/target/debug/deps/librustc_demangle-6a28f170d1e5cc2e.rlib" "/opt/crater/target/debug/deps/libglm-63cc0a167c997f0b.rlib" "/opt/crater/target/debug/deps/libquickcheck-5edee7fdd3eacb7b.rlib" "/opt/crater/target/debug/deps/libenv_logger-2dbed17529793b88.rlib" "/opt/crater/target/debug/deps/libregex-8bd390ae9cde03c0.rlib" "/opt/crater/target/debug/deps/libutf8_ranges-02a9ee482eb041c6.rlib" "/opt/crater/target/debug/deps/libregex_syntax-a5eed8ba2f170ebb.rlib" "/opt/crater/target/debug/deps/libthread_local-d0671e8f08f759e0.rlib" "/opt/crater/target/debug/deps/libthread_id-b5e26572da38384d.rlib" "/opt/crater/target/debug/deps/libaho_corasick-bb6fa5cbe09e9fb8.rlib" "/opt/crater/target/debug/deps/libmemchr-95d508d9fc9a10a3.rlib" "/opt/crater/target/debug/deps/liblog-d8be02d29a71cb41.rlib" "/opt/crater/target/debug/deps/liblog-3b5711445cfef0bd.rlib" "/opt/crater/target/debug/deps/libcfg_if-c1938f77dc3c8b6e.rlib" "/opt/crater/target/debug/deps/libsdl2-9173bff204ac9bcb.rlib" "/opt/crater/target/debug/deps/librand-7b4ac3f3b42a2ef7.rlib" "/opt/crater/target/debug/deps/libsdl2_sys-42b30a28781cb6a1.rlib" "/opt/crater/target/debug/deps/libbitflags-e424d0a7dda42873.rlib" "/opt/crater/target/debug/deps/liblazy_static-0e1e36676eed3924.rlib" "/opt/crater/target/debug/deps/libnum-483f7a5c7c047f7f.rlib" "/opt/crater/target/debug/deps/libnum_rational-e7a93423d757d6b0.rlib" "/opt/crater/target/debug/deps/libnum_bigint-42b5f4b892bced88.rlib" "/opt/crater/target/debug/deps/librand-ba0f7e3caa5ae6fa.rlib" "/opt/crater/target/debug/deps/liblibc-7ef0ecc5d6f9b1d0.rlib" "/opt/crater/target/debug/deps/libnum_complex-8c1312f0a6c9ef4f.rlib" "/opt/crater/target/debug/deps/librustc_serialize-349ba31664dfb847.rlib" "/opt/crater/target/debug/deps/libnum_iter-6a53ebaecf43d64b.rlib" "/opt/crater/target/debug/deps/libnum_integer-3e4b662ece72588f.rlib" "/opt/crater/target/debug/deps/libnum_traits-b0613bcbd790bfdc.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-a80a1e8e09cafef8.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e0e6351da805c468.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e04f54bafc95e331.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-67901d3322495bd5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-bd390b1abaceaec1.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-312dd37fdc7bedfc.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-8ed0e51d58d644a3.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-8a423c320a6c707f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d6a95598e2238263.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d231614b153016eb.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3821619027f463e4.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-1cfd794d18771a44.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-dcf33cf10c2452ef.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-c258fea34bf64bce.rlib" "-Wl,-Bdynamic" "-lSDL2_ttf" "-lSDL2_image" "-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]           /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 `engine_duck`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "20a7e7b77b6d74df674abed410a4c11e2c99047cb46d8fd0d7450a4e7c231dad"`
[INFO] running `"docker" "rm" "-f" "20a7e7b77b6d74df674abed410a4c11e2c99047cb46d8fd0d7450a4e7c231dad"`
[INFO] [stdout] 20a7e7b77b6d74df674abed410a4c11e2c99047cb46d8fd0d7450a4e7c231dad