[INFO] cloning repository https://github.com/geekingfrog/rust-graphics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/geekingfrog/rust-graphics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeekingfrog%2Frust-graphics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeekingfrog%2Frust-graphics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e2d9c962387380a863c33680186757d457b6bff
[INFO] testing geekingfrog/rust-graphics against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeekingfrog%2Frust-graphics" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/geekingfrog/rust-graphics on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/geekingfrog/rust-graphics
[INFO] finished tweaking git repo https://github.com/geekingfrog/rust-graphics
[INFO] tweaked toml for git repo https://github.com/geekingfrog/rust-graphics written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/geekingfrog/rust-graphics already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e374fb3802af40a231a77eb390e88031b7f3007899acdf3381b0531a64bd4f41
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e374fb3802af40a231a77eb390e88031b7f3007899acdf3381b0531a64bd4f41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e374fb3802af40a231a77eb390e88031b7f3007899acdf3381b0531a64bd4f41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e374fb3802af40a231a77eb390e88031b7f3007899acdf3381b0531a64bd4f41", kill_on_drop: false }`
[INFO] [stdout] e374fb3802af40a231a77eb390e88031b7f3007899acdf3381b0531a64bd4f41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 534a76f44c9755ec153ae9967bbe36bacd2a8edebd0b385869009772a14de7f9
[INFO] running `Command { std: "docker" "start" "-a" "534a76f44c9755ec153ae9967bbe36bacd2a8edebd0b385869009772a14de7f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling sdl2 v0.34.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling sdl2-sys v0.34.0
[INFO] [stderr]    Compiling graphics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::seq::SliceRandom`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::seq::SliceRandom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SeedableRng`
[INFO] [stdout]  --> src/sdl.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand::{Rng, SeedableRng};
[INFO] [stdout]   |                 ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::pixels::Color`
[INFO] [stdout]  --> src/sdl.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use sdl2::pixels::Color;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     return;
[INFO] [stdout]    |     ------ any code following this expression is unreachable
[INFO] [stdout] 64 | 
[INFO] [stdout] 65 |     let imgx = 1 << 8;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]   --> src/main.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let mut rng = rand::thread_rng();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/sdl.rs:323:9
[INFO] [stdout]     |
[INFO] [stdout] 323 |     let start = std::time::Instant::now();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/sdl.rs:375:9
[INFO] [stdout]     |
[INFO] [stdout] 375 |     let start = std::time::Instant::now();
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test`
[INFO] [stdout]  --> src/fractal.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn test() {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `zn`
[INFO] [stdout]   --> src/fractal.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn zn(limit: u16, c: Complex<f32>) -> u16 {
[INFO] [stdout]    |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.graphics.886d6ce1-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3.12kuo2cuzikz2sfu.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libnum_complex-66bef04465d1e685.rlib" "/opt/rustwide/target/debug/deps/libsdl2-8b5ca0f45b87900d.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-51e8c2d9afe8a929.rlib" "/opt/rustwide/target/debug/deps/librand-f7ae32101c68d846.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-c30a991da96ba4ad.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-e562e7662610ca94.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-c78691db1e7711de.rlib" "/opt/rustwide/target/debug/deps/librand_core-b2e94269c62416a8.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-9e0f535fe892f296.rlib" "/opt/rustwide/target/debug/deps/libimage-080b39353097c4d3.rlib" "/opt/rustwide/target/debug/deps/libbytemuck-168e25bac77e3465.rlib" "/opt/rustwide/target/debug/deps/libpng-fcfa5c475382aef1.rlib" "/opt/rustwide/target/debug/deps/libinflate-ea8386ca2a6a9d3e.rlib" "/opt/rustwide/target/debug/deps/libcrc32fast-5101f26ae48c6841.rlib" "/opt/rustwide/target/debug/deps/libdeflate-334417c9e9e13bf6.rlib" "/opt/rustwide/target/debug/deps/libbitflags-117d41ac256572da.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-8708cd115e1596fc.rlib" "/opt/rustwide/target/debug/deps/libjpeg_decoder-0fe76f4d1e5d3ac7.rlib" "/opt/rustwide/target/debug/deps/librayon-093cde44b7735bfe.rlib" "/opt/rustwide/target/debug/deps/librayon_core-81b044da5cb92f61.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-383876fcd8fad7cc.rlib" "/opt/rustwide/target/debug/deps/liblibc-cb5a6ee520ca4d07.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_queue-45aa57381c1c998f.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-ffc2507ac7e30a1e.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-e7d6dc2b29016baa.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-a57a6a52cef5676e.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-54968b23d97b033b.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-506755c7eca3e021.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-df981c5871754530.rlib" "/opt/rustwide/target/debug/deps/libmaybe_uninit-2b57d9522de422df.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-4dc40f94662accb2.rlib" "/opt/rustwide/target/debug/deps/libeither-f749d773c0dea6de.rlib" "/opt/rustwide/target/debug/deps/libscoped_threadpool-4c3eba71b04c560a.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-c736f9345a40557d.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-3de0a324701e3c1c.rlib" "/opt/rustwide/target/debug/deps/libgif-8861dcbd72af654d.rlib" "/opt/rustwide/target/debug/deps/libcolor_quant-7f326b4eac3b8700.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-01e89a4f2e966cdc.rlib" "/opt/rustwide/target/debug/deps/libtiff-bed9e8fad3e06111.rlib" "/opt/rustwide/target/debug/deps/libminiz_oxide-be45e2f8e70e58fa.rlib" "/opt/rustwide/target/debug/deps/libadler32-ca2ae0bb10c6aeb4.rlib" "/opt/rustwide/target/debug/deps/liblzw-bf28a12cd9e5ee2b.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-f3c44899040265df.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-008055cc7d873802.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-06f01ac2578bda94.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-f9a3c3274a1835e0.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-d4cbb754ee9f4daa.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-95c14e1c1e3ebcc4.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d489f0ca872880cc.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-75f07df0b18fea39.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-0c35b278736219a2.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-e530649c9a06e3c6.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-6b148909d375a785.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-cd15fa647f4775d1.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74be3a703f788ba2.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-8f2c5b445c28b2e3.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-8480e85e0be96197.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-ac23a75f6f42004e.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-557ba8776e04d182.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-4beb03d03503c439.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-dd7db1bec6909f24.rlib" "-Wl,-Bdynamic" "-lSDL2" "-lSDL2_image" "-lutil" "-ldl" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/graphics-9218e7cbdb88c7a3" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lSDL2_image
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `graphics` due to 2 previous errors; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "534a76f44c9755ec153ae9967bbe36bacd2a8edebd0b385869009772a14de7f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "534a76f44c9755ec153ae9967bbe36bacd2a8edebd0b385869009772a14de7f9", kill_on_drop: false }`
[INFO] [stdout] 534a76f44c9755ec153ae9967bbe36bacd2a8edebd0b385869009772a14de7f9