[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 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-5/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/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] f21ddc3a2841b99f7d350db4a13ac62f118a0b4779abf93cb04e7968b4277b23
[INFO] running `"docker" "start" "-a" "f21ddc3a2841b99f7d350db4a13ac62f118a0b4779abf93cb04e7968b4277b23"`
[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/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.sdl2_tut.36kxs3bk-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c" "/opt/crater/target/debug/deps/sdl2_tut-8d09ee95ab4dc25c.1jo7p63v6k48u52p.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-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/libsdl2-efb0e9ec3a4af258.rlib" "/opt/crater/target/debug/deps/librand-8e770a3f2816a5c9.rlib" "/opt/crater/target/debug/deps/librand-2981ef7bae904deb.rlib" "/opt/crater/target/debug/deps/libsdl2_sys-6ec9d610426acc19.rlib" "/opt/crater/target/debug/deps/libbitflags-b03ee8d07369378c.rlib" "/opt/crater/target/debug/deps/liblazy_static-8e8f275d3efea5b8.rlib" "/opt/crater/target/debug/deps/liblibc-9d78a2d2719851af.rlib" "/opt/crater/target/debug/deps/libnum-a2e77b83c5fe6992.rlib" "/opt/crater/target/debug/deps/libnum_iter-d565949623150d06.rlib" "/opt/crater/target/debug/deps/libnum_integer-2a77bed06663b4f3.rlib" "/opt/crater/target/debug/deps/libnum_traits-4b535517a3ec4806.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_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" "f21ddc3a2841b99f7d350db4a13ac62f118a0b4779abf93cb04e7968b4277b23"`
[INFO] running `"docker" "rm" "-f" "f21ddc3a2841b99f7d350db4a13ac62f118a0b4779abf93cb04e7968b4277b23"`
[INFO] [stdout] f21ddc3a2841b99f7d350db4a13ac62f118a0b4779abf93cb04e7968b4277b23