[INFO] cloning repository https://github.com/nsmryan/MachineLearningArtProject
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nsmryan/MachineLearningArtProject" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2FMachineLearningArtProject", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2FMachineLearningArtProject'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f450c741a52bc78e7481e1bb3b039a671a1fe231
[INFO] testing nsmryan/MachineLearningArtProject against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2FMachineLearningArtProject" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nsmryan/MachineLearningArtProject on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nsmryan/MachineLearningArtProject
[INFO] finished tweaking git repo https://github.com/nsmryan/MachineLearningArtProject
[INFO] tweaked toml for git repo https://github.com/nsmryan/MachineLearningArtProject written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/nsmryan/MachineLearningArtProject already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", 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] 9d1f50aa8428a22ae81fdf0e79f30a34ce914b7654db75f532726a43c0174a9a
[INFO] running `Command { std: "docker" "start" "-a" "9d1f50aa8428a22ae81fdf0e79f30a34ce914b7654db75f532726a43c0174a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d1f50aa8428a22ae81fdf0e79f30a34ce914b7654db75f532726a43c0174a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d1f50aa8428a22ae81fdf0e79f30a34ce914b7654db75f532726a43c0174a9a", kill_on_drop: false }`
[INFO] [stdout] 9d1f50aa8428a22ae81fdf0e79f30a34ce914b7654db75f532726a43c0174a9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ce9f73a152b689091f44341615a909904d3304fe4f039462e10e2e05108f4d2
[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" "5ce9f73a152b689091f44341615a909904d3304fe4f039462e10e2e05108f4d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling bitflags v1.0.5
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling gif v0.10.1
[INFO] [stderr]    Compiling conv v0.3.3
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling fann-sys v0.1.7
[INFO] [stderr]    Compiling fann v0.1.7
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling stb_truetype v0.2.6
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling rusttype v0.7.6
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling image v0.21.1
[INFO] [stderr]    Compiling imageproc v0.18.0
[INFO] [stderr]    Compiling nn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> src/main.rs:75:34
[INFO] [stdout]    |
[INFO] [stdout] 75 |                 .filter(|(index, val)| index % 3 == 0)
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/main.rs:76:24
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 .map(|(index, val)| (*val as f32) / 256.0)
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nn`.
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.nn.3doqnapi-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e" "/opt/rustwide/target/debug/deps/nn-36cb015617fd359e.4pb3rrxegzd7lhz.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libimageproc-7a8b8ad175987b55.rlib" "/opt/rustwide/target/debug/deps/librand-5cc4957847df4796.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-da08c3a0f81f4132.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-58ffa99f52c946c6.rlib" "/opt/rustwide/target/debug/deps/librand_hc-c2c545f169211011.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-a3d7da22d384c849.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-f9b4449a50554618.rlib" "/opt/rustwide/target/debug/deps/librand_core-92bbb6571a6654bf.rlib" "/opt/rustwide/target/debug/deps/librand_os-7c91efac6f1cea89.rlib" "/opt/rustwide/target/debug/deps/librand_jitter-239005951f5c3383.rlib" "/opt/rustwide/target/debug/deps/librand_core-aab3ff57a06685ad.rlib" "/opt/rustwide/target/debug/deps/libnum-14e68baee894aa2c.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-dd4c7beff60e7811.rlib" "/opt/rustwide/target/debug/deps/librusttype-1dd5a3af132746db.rlib" "/opt/rustwide/target/debug/deps/libstb_truetype-ba80bcee01a0c288.rlib" "/opt/rustwide/target/debug/deps/libapprox-3107d42fa3857bb6.rlib" "/opt/rustwide/target/debug/deps/libordered_float-95ee09ef3ed70c14.rlib" "/opt/rustwide/target/debug/deps/libconv-d8266aad9822ad48.rlib" "/opt/rustwide/target/debug/deps/libcustom_derive-fc9a90632f8ff1e4.rlib" "/opt/rustwide/target/debug/deps/libitertools-59205923d5935093.rlib" "/opt/rustwide/target/debug/deps/libimage-44d38d2db824271b.rlib" "/opt/rustwide/target/debug/deps/libtiff-0222c62e30d38c1b.rlib" "/opt/rustwide/target/debug/deps/libpng-02b44a48d8919c19.rlib" "/opt/rustwide/target/debug/deps/libdeflate-2fe2912595056e30.rlib" "/opt/rustwide/target/debug/deps/libinflate-aa68b91cb1807a32.rlib" "/opt/rustwide/target/debug/deps/libadler32-a96a0f4dc0da812d.rlib" "/opt/rustwide/target/debug/deps/libbitflags-7e939e5b13e0e7a4.rlib" "/opt/rustwide/target/debug/deps/libjpeg_decoder-a25371a9225d7138.rlib" "/opt/rustwide/target/debug/deps/librayon-faa82dc75b20daf4.rlib" "/opt/rustwide/target/debug/deps/libeither-2d7d053dcc732017.rlib" "/opt/rustwide/target/debug/deps/librayon_core-d922a1f03ce228db.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-e9a6571c6a01e345.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-ff99afdf2eb966ff.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-f8c4c83b1cc00e7e.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-ec9abe82e49d46a8.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-850c4da9402742c3.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-d4124ae9b577fc0f.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-6c0ad736d514179b.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-3f8682cfea31e411.rlib" "/opt/rustwide/target/debug/deps/libarrayvec-9343b061c9077ada.rlib" "/opt/rustwide/target/debug/deps/libnodrop-4fb049013488e931.rlib" "/opt/rustwide/target/debug/deps/libscoped_threadpool-12075f9fe9af633d.rlib" "/opt/rustwide/target/debug/deps/libgif-17a4f0da27fba293.rlib" "/opt/rustwide/target/debug/deps/libcolor_quant-568c39e074714399.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-a5b3bd90bbe67170.rlib" "/opt/rustwide/target/debug/deps/libnum_bigint-e7ce93d2fd5377dd.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-a254f05b96acdd09.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-55f137dbd5cae345.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-9a525f7f1791a4e4.rlib" "/opt/rustwide/target/debug/deps/liblzw-f328a69da2627978.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-93a073168726b516.rlib" "/opt/rustwide/target/debug/deps/libfann-7b02b30f1e5dab59.rlib" "/opt/rustwide/target/debug/deps/libfann_sys-a93d262489f333f1.rlib" "/opt/rustwide/target/debug/deps/liblibc-3accae137b007adb.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-f14aca24435a5414.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-48d342a8b48d1d01.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-14bc0820888c8eb3.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9cbd9e217bff06bc.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-31826136df98934e.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-075976a117c8fd5d.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-2d5cbedfbf17a011.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0474372ff08c5319.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d437c34460d2315a.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-fb61ed1b8cc4de79.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bf76d1b643bfc9f0.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-a1b53aa7fddcf418.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-28585e57fac45c73.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-64801769bc15ab28.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-541997b56bb98660.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-cdea3c81adab3d12.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-cd9f15a39fb65cbc.rlib" "-Wl,-Bdynamic" "-lfann" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lfann
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "5ce9f73a152b689091f44341615a909904d3304fe4f039462e10e2e05108f4d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ce9f73a152b689091f44341615a909904d3304fe4f039462e10e2e05108f4d2", kill_on_drop: false }`
[INFO] [stdout] 5ce9f73a152b689091f44341615a909904d3304fe4f039462e10e2e05108f4d2
