[INFO] updating cached repository https://github.com/nsmryan/MachineLearningArtProject
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f450c741a52bc78e7481e1bb3b039a671a1fe231
[INFO] testing nsmryan/MachineLearningArtProject against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2FMachineLearningArtProject" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nsmryan/MachineLearningArtProject on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[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 work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nsmryan/MachineLearningArtProject already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 816ef9df1bb7c26976e2f65ec149f196d0f3bce50edf6182065927dc001c28e9
[INFO] running `"docker" "start" "-a" "816ef9df1bb7c26976e2f65ec149f196d0f3bce50edf6182065927dc001c28e9"`
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling bitflags v1.0.5
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling conv v0.3.3
[INFO] [stderr]    Compiling rusttype v0.7.6
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[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 quote v0.6.12
[INFO] [stderr]    Compiling fann v0.1.7
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling num-derive v0.2.5
[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] [stderr] warning: unused variable: `val`
[INFO] [stderr]   --> src/main.rs:75:34
[INFO] [stderr]    |
[INFO] [stderr] 75 |                 .filter(|(index, val)| index % 3 == 0)
[INFO] [stderr]    |                                  ^^^ help: consider prefixing with an underscore: `_val`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/main.rs:76:24
[INFO] [stderr]    |
[INFO] [stderr] 76 |                 .map(|(index, val)| (*val as f32) / 256.0)
[INFO] [stderr]    |                        ^^^^^ help: consider prefixing with an underscore: `_index`
[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/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.nn.afftop63-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634" "/opt/rustwide/target/debug/deps/nn-4ac7841bb76bf634.250xv031y6ejovd9.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libimageproc-29ad9aa63338399e.rlib" "/opt/rustwide/target/debug/deps/librand-7ca405dcdef043cd.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-57eff26591ee1926.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-a1f64ed70102bd13.rlib" "/opt/rustwide/target/debug/deps/librand_hc-79eb2bb135bcf82e.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-ed3231068e4634b4.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-abee9575352963b6.rlib" "/opt/rustwide/target/debug/deps/librand_core-96fcd81fcc1da5a2.rlib" "/opt/rustwide/target/debug/deps/librand_os-be2553ec98371cc8.rlib" "/opt/rustwide/target/debug/deps/librand_jitter-fbdcc23875500578.rlib" "/opt/rustwide/target/debug/deps/librand_core-f46a59bb123ae6e7.rlib" "/opt/rustwide/target/debug/deps/libnum-5a527ad49c0cb257.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-5ec02f166ffe7a78.rlib" "/opt/rustwide/target/debug/deps/librusttype-c280c54b029db271.rlib" "/opt/rustwide/target/debug/deps/libstb_truetype-7c885882560c7a44.rlib" "/opt/rustwide/target/debug/deps/libapprox-1b1d996061d0b71e.rlib" "/opt/rustwide/target/debug/deps/libordered_float-7b3ade1e778c558b.rlib" "/opt/rustwide/target/debug/deps/libconv-c0ba592812c9996b.rlib" "/opt/rustwide/target/debug/deps/libcustom_derive-3ec40e41e2d23ade.rlib" "/opt/rustwide/target/debug/deps/libitertools-377003799dd84f72.rlib" "/opt/rustwide/target/debug/deps/libimage-37f00eb340bef2a8.rlib" "/opt/rustwide/target/debug/deps/libtiff-1ea9eec87cfa462d.rlib" "/opt/rustwide/target/debug/deps/libpng-7c99acd884af84e7.rlib" "/opt/rustwide/target/debug/deps/libdeflate-3e3eed18c464894a.rlib" "/opt/rustwide/target/debug/deps/libinflate-47d8fa2f1000e401.rlib" "/opt/rustwide/target/debug/deps/libadler32-4c40b46846821ec1.rlib" "/opt/rustwide/target/debug/deps/libbitflags-ae2c560d557ce4bb.rlib" "/opt/rustwide/target/debug/deps/libjpeg_decoder-48f0272e9e26e955.rlib" "/opt/rustwide/target/debug/deps/librayon-8c7f04183455947f.rlib" "/opt/rustwide/target/debug/deps/libeither-df3fdcf16d79d67c.rlib" "/opt/rustwide/target/debug/deps/librayon_core-b19d3cf1c050b0de.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-bf7b8c9d36125e47.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-e39ddf5bc3e14006.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-519fc5858f7d1f1b.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-0684162327b2b1d2.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-97283fd366a3fe51.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-0bb2f2b904eb618d.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-9c6d453fc53ca5c4.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-7e9b153d55b90d49.rlib" "/opt/rustwide/target/debug/deps/libarrayvec-a58159c7d595bbd9.rlib" "/opt/rustwide/target/debug/deps/libnodrop-30dc09557a31fb0d.rlib" "/opt/rustwide/target/debug/deps/libscoped_threadpool-dc3c4f41fd135de5.rlib" "/opt/rustwide/target/debug/deps/libgif-471430762bf416ad.rlib" "/opt/rustwide/target/debug/deps/libcolor_quant-379ba392164804ea.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-14e299bbb83d1257.rlib" "/opt/rustwide/target/debug/deps/libnum_bigint-1a55f87c649cc7f9.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-778ca6a25434d54d.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-8b28b801c4c32d74.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-96f5ce4bbc698d03.rlib" "/opt/rustwide/target/debug/deps/liblzw-7031afe4e8382d45.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-b551d4293eeff0ab.rlib" "/opt/rustwide/target/debug/deps/libfann-af7929780c7c8047.rlib" "/opt/rustwide/target/debug/deps/libfann_sys-e52e97520e9dc257.rlib" "/opt/rustwide/target/debug/deps/liblibc-7133f54907e88dde.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-db812c66f862af4c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e7871a21575d5ff7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-2f2c581bc0d759e6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-35731cabc05dc8a0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-36477394541292db.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-8b706b170c1272d8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-801dbb3043ccf581.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-a32aa66ce6f72b21.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d00ea3bfb2bb6c00.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d2c6ebe88c3e113c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-df74f62f6bb60621.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-2170473575daeedb.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-1a08089bbddc4f51.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-f8f562e5472ad5c3.rlib" "-Wl,-Bdynamic" "-lfann" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lfann
[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 `nn`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "816ef9df1bb7c26976e2f65ec149f196d0f3bce50edf6182065927dc001c28e9"`
[INFO] running `"docker" "rm" "-f" "816ef9df1bb7c26976e2f65ec149f196d0f3bce50edf6182065927dc001c28e9"`
[INFO] [stdout] 816ef9df1bb7c26976e2f65ec149f196d0f3bce50edf6182065927dc001c28e9