[INFO] updating cached repository svanellewee/rust-sdl-hackery
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/svanellewee/rust-sdl-hackery
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/svanellewee/rust-sdl-hackery" "work/ex/beta-1.38-1/sources/1.37.0/gh/svanellewee/rust-sdl-hackery"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/svanellewee/rust-sdl-hackery'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/svanellewee/rust-sdl-hackery" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/svanellewee/rust-sdl-hackery"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/svanellewee/rust-sdl-hackery'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cc8d754d7ab62c228e6acb29e758678a0714e091
[INFO] sha for GitHub repo svanellewee/rust-sdl-hackery: cc8d754d7ab62c228e6acb29e758678a0714e091
[INFO] validating manifest of svanellewee/rust-sdl-hackery 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 svanellewee/rust-sdl-hackery 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 svanellewee/rust-sdl-hackery
[INFO] finished frobbing svanellewee/rust-sdl-hackery
[INFO] frobbed toml for svanellewee/rust-sdl-hackery written to work/ex/beta-1.38-1/sources/1.37.0/gh/svanellewee/rust-sdl-hackery/Cargo.toml
[INFO] started frobbing svanellewee/rust-sdl-hackery
[INFO] finished frobbing svanellewee/rust-sdl-hackery
[INFO] frobbed toml for svanellewee/rust-sdl-hackery written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/svanellewee/rust-sdl-hackery/Cargo.toml
[INFO] crate svanellewee/rust-sdl-hackery 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 svanellewee/rust-sdl-hackery against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/svanellewee/rust-sdl-hackery:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 5dd6381b1e44d4646fd01bab471a7e9753fc82c34ee57d0aa838381f7df45959
[INFO] running `"docker" "start" "-a" "5dd6381b1e44d4646fd01bab471a7e9753fc82c34ee57d0aa838381f7df45959"`
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling sdl2-tut v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut canvas = window
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |         canvas.fill_rect(dest_rect_0);
[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/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.sdl2_tut.7wam37i5-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb" "/opt/crater/target/debug/deps/sdl2_tut-54df7c3b853a38fb.o17ixpzh4yl058c.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libsdl2-36c37305d4cad405.rlib" "/opt/crater/target/debug/deps/librand-baa78b353d91eca7.rlib" "/opt/crater/target/debug/deps/librand-e7c0917706e1ea21.rlib" "/opt/crater/target/debug/deps/libsdl2_sys-a3f5cf7805507dd4.rlib" "/opt/crater/target/debug/deps/libbitflags-05fa20c47058c1db.rlib" "/opt/crater/target/debug/deps/liblazy_static-0c9d1899e9eae559.rlib" "/opt/crater/target/debug/deps/liblibc-359335290a215031.rlib" "/opt/crater/target/debug/deps/libnum-7a09c1be81273bf8.rlib" "/opt/crater/target/debug/deps/libnum_iter-b2716f73be0c4bcd.rlib" "/opt/crater/target/debug/deps/libnum_integer-9ce89979889fd94d.rlib" "/opt/crater/target/debug/deps/libnum_traits-afa9f3b1620256a9.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4a76ff35a356aedf.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e11c7b3b3225afe2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-13217ede3d276f16.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-621a9ee22da6caa1.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-546c844e8071bbeb.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-be9569e4d599746f.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-47d8845cef2a3bc5.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-017511bce73a530c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-be7979c57a08057b.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d6459c4f0817c67c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-580035dd98451925.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-aee5c24fff305dea.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8a55a4098920125a.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-9fc4b5be2ba5cc19.rlib" "-Wl,-Bdynamic" "-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_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 `sdl2-tut`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5dd6381b1e44d4646fd01bab471a7e9753fc82c34ee57d0aa838381f7df45959"`
[INFO] running `"docker" "rm" "-f" "5dd6381b1e44d4646fd01bab471a7e9753fc82c34ee57d0aa838381f7df45959"`
[INFO] [stdout] 5dd6381b1e44d4646fd01bab471a7e9753fc82c34ee57d0aa838381f7df45959