[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-1.38-1/sources/1.37.0/gh/nrxus/engine_duck"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nrxus/engine_duck'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nrxus/engine_duck" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nrxus/engine_duck"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nrxus/engine_duck on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nrxus/engine_duck against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 97dcb075840ad7d3ebee38d40aa618db455120cc75dd03f57e8aa306e4fb3764
[INFO] running `"docker" "start" "-a" "97dcb075840ad7d3ebee38d40aa618db455120cc75dd03f57e8aa306e4fb3764"`
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling moho-derive v0.1.0 (https://github.com/nrxus/moho#1259f0e0)
[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 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-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.duck_husky_wedding.6ws834j3-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562" "/opt/crater/target/debug/deps/duck_husky_wedding-dd0c08a09d52c562.gv9nopfti3p4kbg.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-1fd15cf3828661f8/out" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libserde_yaml-25ede93766fad94c.rlib" "/opt/crater/target/debug/deps/libyaml_rust-a6ac0d2bb7613271.rlib" "/opt/crater/target/debug/deps/liblinked_hash_map-b4974d327ab2ca73.rlib" "/opt/crater/target/debug/deps/libdtoa-e856206cc2b690b3.rlib" "/opt/crater/target/debug/deps/libserde-d602ef5fd8e3c0ef.rlib" "/opt/crater/target/debug/deps/libmoho-8a785059a78c4934.rlib" "/opt/crater/target/debug/deps/libfailure-0946e45cba565e21.rlib" "/opt/crater/target/debug/deps/libbacktrace-9fa0decdc73d409f.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-6ccb878271b45299.rlib" "/opt/crater/target/debug/deps/librustc_demangle-9891100843b3000f.rlib" "/opt/crater/target/debug/deps/libglm-d676a2648ad68454.rlib" "/opt/crater/target/debug/deps/libquickcheck-cdad781ff6dc3d72.rlib" "/opt/crater/target/debug/deps/libenv_logger-7dd82ae3b56202af.rlib" "/opt/crater/target/debug/deps/libregex-9bf4fd2685f0622d.rlib" "/opt/crater/target/debug/deps/libutf8_ranges-f03f24c2204694fb.rlib" "/opt/crater/target/debug/deps/libregex_syntax-e4e7cc24efed9736.rlib" "/opt/crater/target/debug/deps/libthread_local-ed03dd604b1518f1.rlib" "/opt/crater/target/debug/deps/libthread_id-48a6e1e8e7e2e592.rlib" "/opt/crater/target/debug/deps/libaho_corasick-6fe6ed02fb681281.rlib" "/opt/crater/target/debug/deps/libmemchr-7f3cfe5807e65f72.rlib" "/opt/crater/target/debug/deps/liblog-5e88d105e35bd3ad.rlib" "/opt/crater/target/debug/deps/liblog-5fab1ddaf1b8d6f8.rlib" "/opt/crater/target/debug/deps/libcfg_if-52f952e08f3290ba.rlib" "/opt/crater/target/debug/deps/libsdl2-6523e88a758abf4d.rlib" "/opt/crater/target/debug/deps/librand-e7fbb412ff9aee36.rlib" "/opt/crater/target/debug/deps/libsdl2_sys-d13b5dc06a85ebd4.rlib" "/opt/crater/target/debug/deps/libbitflags-b03ee8d07369378c.rlib" "/opt/crater/target/debug/deps/liblazy_static-8e8f275d3efea5b8.rlib" "/opt/crater/target/debug/deps/libnum-5a74c4654f6436a1.rlib" "/opt/crater/target/debug/deps/libnum_rational-5612ef767a5d0bc5.rlib" "/opt/crater/target/debug/deps/libnum_bigint-9ddf586d25c53a1f.rlib" "/opt/crater/target/debug/deps/librand-61858dfae8c87f2c.rlib" "/opt/crater/target/debug/deps/liblibc-bdc2386f4cce9efc.rlib" "/opt/crater/target/debug/deps/libnum_complex-2013bef12484f497.rlib" "/opt/crater/target/debug/deps/librustc_serialize-fc0a027b4489f806.rlib" "/opt/crater/target/debug/deps/libnum_iter-c2670023c017b43e.rlib" "/opt/crater/target/debug/deps/libnum_integer-2746dc7a3b917a7f.rlib" "/opt/crater/target/debug/deps/libnum_traits-b79693a5d7e93180.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1d6d86bd078a28e9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e9721e46a424e2a9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-c07193698f282147.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6da45690f3863086.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-690797036dd27680.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d3896ccbfd8eda2b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5e9ba178a513cd29.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-5ca9f83bf63d1f4b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bba1c7ef9e950882.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e23c9de62012deb5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-17392340ab2e4a97.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ac21508a81e3f7f3.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" "97dcb075840ad7d3ebee38d40aa618db455120cc75dd03f57e8aa306e4fb3764"`
[INFO] running `"docker" "rm" "-f" "97dcb075840ad7d3ebee38d40aa618db455120cc75dd03f57e8aa306e4fb3764"`
[INFO] [stdout] 97dcb075840ad7d3ebee38d40aa618db455120cc75dd03f57e8aa306e4fb3764