[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 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnsmryan%2FMachineLearningArtProject" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nsmryan/MachineLearningArtProject on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-8/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" "+1.49.0" "fetch" "--locked" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 781c9a03ac96565039f48e1450077df688ea6418bd4b1641dcc7e07eef7aa59b
[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" "781c9a03ac96565039f48e1450077df688ea6418bd4b1641dcc7e07eef7aa59b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "781c9a03ac96565039f48e1450077df688ea6418bd4b1641dcc7e07eef7aa59b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "781c9a03ac96565039f48e1450077df688ea6418bd4b1641dcc7e07eef7aa59b", kill_on_drop: false }`
[INFO] [stdout] 781c9a03ac96565039f48e1450077df688ea6418bd4b1641dcc7e07eef7aa59b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6698bdcb6dcee183ca923a4ce1d97892704735f4ef96418cd185fda18c367b38
[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" "6698bdcb6dcee183ca923a4ce1d97892704735f4ef96418cd185fda18c367b38", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling bitflags v1.0.5
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling fann-sys v0.1.7
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling fann v0.1.7
[INFO] [stderr]    Compiling rusttype v0.7.6
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling num v0.2.0
[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] [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] [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/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.nn.dup6r749-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f" "/opt/rustwide/target/debug/deps/nn-dd9e4b55c7eacb2f.2ctv7b27h0a642d0.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libimageproc-291613101c93b8c3.rlib" "/opt/rustwide/target/debug/deps/librand-ba32fb7e5ae521c9.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-e30f321e2a3dc81f.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-c951f675377147ae.rlib" "/opt/rustwide/target/debug/deps/librand_hc-fdbd2fc91cb6f0f3.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-4819cf739bd49074.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-b081f2d9c9eb5483.rlib" "/opt/rustwide/target/debug/deps/librand_core-f1ea6d529e277345.rlib" "/opt/rustwide/target/debug/deps/librand_os-0a651f2a54c77c20.rlib" "/opt/rustwide/target/debug/deps/librand_jitter-adc38879fbaaa5ee.rlib" "/opt/rustwide/target/debug/deps/librand_core-8a09d4e50fabcece.rlib" "/opt/rustwide/target/debug/deps/libnum-633e2815ee97b2cb.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-1306b5830642b523.rlib" "/opt/rustwide/target/debug/deps/librusttype-c0fc77f101d67197.rlib" "/opt/rustwide/target/debug/deps/libstb_truetype-1f9177ea64693767.rlib" "/opt/rustwide/target/debug/deps/libapprox-f4ffaf37cb25bded.rlib" "/opt/rustwide/target/debug/deps/libordered_float-e29ff13ec0dd0a46.rlib" "/opt/rustwide/target/debug/deps/libconv-1bc8dd58212a73ba.rlib" "/opt/rustwide/target/debug/deps/libcustom_derive-bdf5aadade2e3add.rlib" "/opt/rustwide/target/debug/deps/libitertools-499a74f924b805cf.rlib" "/opt/rustwide/target/debug/deps/libimage-cb1316efcb0deed0.rlib" "/opt/rustwide/target/debug/deps/libtiff-653f0ef6571aed9a.rlib" "/opt/rustwide/target/debug/deps/libpng-e71b01998c4733a5.rlib" "/opt/rustwide/target/debug/deps/libdeflate-25f482254bd5035d.rlib" "/opt/rustwide/target/debug/deps/libinflate-bc6cd2ed8084d13b.rlib" "/opt/rustwide/target/debug/deps/libadler32-fa11897bff16db39.rlib" "/opt/rustwide/target/debug/deps/libbitflags-992d7bd43b287efb.rlib" "/opt/rustwide/target/debug/deps/libjpeg_decoder-f2f3099a5594b9ab.rlib" "/opt/rustwide/target/debug/deps/librayon-4c6d7614c5fd0b36.rlib" "/opt/rustwide/target/debug/deps/libeither-fcc809e190499935.rlib" "/opt/rustwide/target/debug/deps/librayon_core-3d1f3bc79a16f9e7.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-a254ecdfee0c9607.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-e6649bf386675e51.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-43625c7d3cbdb346.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-c0e1396086f307bb.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-e9bde307deef8c75.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-4ccbe9d570ae61ca.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-9b922460266f6c04.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-4d47206547bf9fb1.rlib" "/opt/rustwide/target/debug/deps/libarrayvec-bf6f11070401cb37.rlib" "/opt/rustwide/target/debug/deps/libnodrop-964eb80ddccd0e5d.rlib" "/opt/rustwide/target/debug/deps/libscoped_threadpool-46227cba77bf068c.rlib" "/opt/rustwide/target/debug/deps/libgif-00628d705179caae.rlib" "/opt/rustwide/target/debug/deps/libcolor_quant-d65e622656ea392c.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-50944e6d0efb876d.rlib" "/opt/rustwide/target/debug/deps/libnum_bigint-c8f47fda398fabfd.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-f9f5d0a88edbf506.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-16fd97575236ce8d.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-0d14380347a326c6.rlib" "/opt/rustwide/target/debug/deps/liblzw-0d682a6079178eab.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-05ffa39c4d0ff823.rlib" "/opt/rustwide/target/debug/deps/libfann-8841016c4bdb96a1.rlib" "/opt/rustwide/target/debug/deps/libfann_sys-9ab937e028abfdc3.rlib" "/opt/rustwide/target/debug/deps/liblibc-e63a298314f73135.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e12de7683a34c500.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-446a53c2e468675f.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-86fef9fb252a2d33.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-3bed9bfd30304751.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0e38eeb474a7b386.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-a846ed547b824740.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c9540f0a4fb9265d.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7d2ca66c92c356eb.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-147e2c808f949493.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-bd2a4369506670e9.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74bfdd0ce7d0ed48.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-6777f47f1c491841.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b104f1790174f2be.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-db37898996f45c13.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-25b7435131fc4938.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9d4b6f3c097e876e.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-3f953ad652ab829a.rlib" "-Wl,-Bdynamic" "-lfann" "-lutil" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[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] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nn`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "6698bdcb6dcee183ca923a4ce1d97892704735f4ef96418cd185fda18c367b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6698bdcb6dcee183ca923a4ce1d97892704735f4ef96418cd185fda18c367b38", kill_on_drop: false }`
[INFO] [stdout] 6698bdcb6dcee183ca923a4ce1d97892704735f4ef96418cd185fda18c367b38