[INFO] cloning repository https://github.com/ContainedBlargh/rustlearn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ContainedBlargh/rustlearn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FContainedBlargh%2Frustlearn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FContainedBlargh%2Frustlearn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99aae4588743133e90ba197de40ac108ee561256
[INFO] testing ContainedBlargh/rustlearn against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FContainedBlargh%2Frustlearn" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ContainedBlargh/rustlearn on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ContainedBlargh/rustlearn
[INFO] finished tweaking git repo https://github.com/ContainedBlargh/rustlearn
[INFO] tweaked toml for git repo https://github.com/ContainedBlargh/rustlearn written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ContainedBlargh/rustlearn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded statistical v1.0.0
[INFO] [stderr]   Downloaded bstr v0.2.8
[INFO] [stderr]   Downloaded csv v1.1.1
[INFO] [stderr]   Downloaded arrayfire v3.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c820203be86c133494f9d0f3680dd0b979cd09be50a68e22cdfbb3c043c5d4dd
[INFO] running `Command { std: "docker" "start" "-a" "c820203be86c133494f9d0f3680dd0b979cd09be50a68e22cdfbb3c043c5d4dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c820203be86c133494f9d0f3680dd0b979cd09be50a68e22cdfbb3c043c5d4dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c820203be86c133494f9d0f3680dd0b979cd09be50a68e22cdfbb3c043c5d4dd", kill_on_drop: false }`
[INFO] [stdout] c820203be86c133494f9d0f3680dd0b979cd09be50a68e22cdfbb3c043c5d4dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acb1c3c8a6a8d4991accc8b62b62322838eb0b2969b4a161566f53a1c9393e3b
[INFO] running `Command { std: "docker" "start" "-a" "acb1c3c8a6a8d4991accc8b62b62322838eb0b2969b4a161566f53a1c9393e3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling statistical v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling bstr v0.2.8
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling arrayfire v3.6.2
[INFO] [stderr]    Compiling rustlearn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:95:6
[INFO] [stdout]    |
[INFO] [stdout] 95 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/fc.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |             (Some(x), Some(y)) => {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |     for i in 0..epochs {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:69:35
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     .filter_map(|(i, r)| {
[INFO] [stdout]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `arrayfire_test` is never used
[INFO] [stdout]   --> src/main.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn arrayfire_test() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fc_test` is never used
[INFO] [stdout]   --> src/main.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn fc_test() {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `softmax` is never used
[INFO] [stdout]   --> src/utils.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn softmax(x: &Array<f32>) -> Array<f32> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `softmax_deriv` is never used
[INFO] [stdout]   --> src/utils.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn softmax_deriv(x: &Array<f32>) -> Array<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_random_fc` is never used
[INFO] [stdout]    --> src/fc.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn init_random_fc(input_size: u64, output_size: u64) -> FCLayer {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_identity_fc` is never used
[INFO] [stdout]    --> src/fc.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub fn init_identity_fc(input_size: u64, output_size: u64) -> FCLayer {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Y` should have a snake case name
[INFO] [stdout]   --> src/main.rs:91:26
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn mean_square_error(Y: &Array<f32>, y: &Array<f32>) -> f32 {
[INFO] [stdout]    |                          ^ help: convert the identifier to snake case (notice the capitalization): `y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: LC_ALL="C" PATH="/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin:/opt/rustwide/cargo-home/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustcOkDeGV/symbols.o" "/opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.2v7hbdq8u7m991xf.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/arrayfire/lib" "-L" "/opt/arrayfire/lib64" "-L" "/usr/local/lib" "-L" "/usr/lib" "-L" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libstatistical-5a4b068d2b0c728d.rlib" "/opt/rustwide/target/debug/deps/librand-73a242114f32c287.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-9b7e196cd50c4e67.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-3c8ef7712ac8b37b.rlib" "/opt/rustwide/target/debug/deps/librand_hc-677515abc5e770db.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-5a40055b7fb3edec.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-9055555a0ce64bea.rlib" "/opt/rustwide/target/debug/deps/librand_core-2d6f500acd6a936c.rlib" "/opt/rustwide/target/debug/deps/librand_os-e109eaf27e4113dd.rlib" "/opt/rustwide/target/debug/deps/librand_jitter-e0716e2be2341726.rlib" "/opt/rustwide/target/debug/deps/librand_core-5f8dc8f8f4491b97.rlib" "/opt/rustwide/target/debug/deps/libcsv-6363ae7459306492.rlib" "/opt/rustwide/target/debug/deps/libryu-a8a3be93b021219a.rlib" "/opt/rustwide/target/debug/deps/libitoa-36339756c53a0de5.rlib" "/opt/rustwide/target/debug/deps/libcsv_core-a442131a075d1a9c.rlib" "/opt/rustwide/target/debug/deps/libbstr-e9b583a7467c2e86.rlib" "/opt/rustwide/target/debug/deps/libregex_automata-f8a4608b5d84fb0e.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-93a4681a12868758.rlib" "/opt/rustwide/target/debug/deps/libmemchr-ad6c54dd1ceb638c.rlib" "/opt/rustwide/target/debug/deps/libserde-1a1468053bce5d19.rlib" "/opt/rustwide/target/debug/deps/librand_distr-27d546fe60c9bb17.rlib" "/opt/rustwide/target/debug/deps/librand-2bda530093c56a5e.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-98ca630b08cf13b3.rlib" "/opt/rustwide/target/debug/deps/libc2_chacha-a06595690e5804dc.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-a5117affbe01fa30.rlib" "/opt/rustwide/target/debug/deps/librand_core-35bff9ac65fe80e2.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-3b069bc2b9502a34.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-925b73a2e437f0c3.rlib" "/opt/rustwide/target/debug/deps/libarrayfire-dc4bbef9c3a8b832.rlib" "/opt/rustwide/target/debug/deps/libnum-f80e17d01607f655.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-f6761b52b734e2a8.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-96b7ddd489399037.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-55e19cdd46d91b6c.rlib" "/opt/rustwide/target/debug/deps/libnum_bigint-f39d93fc446ad02f.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-4908c9d5cd80f607.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-9b803021dc78fc15.rlib" "/opt/rustwide/target/debug/deps/liblibc-aa2f94ce3610bf72.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-591486ebcb9a7ead.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-90f6ddbf82de36ec.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-480c41e9d4e1f677.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-db744c0ca03eed1d.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-8ba652dc7d4b285a.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d5f4520a9ebc0d58.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-4ad84de58f0cb463.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0d10aae2e0f38735.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-0c17cff739e6745b.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-b29e17139dde1aa8.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-1f975299829cc7bd.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-86bae3bc3079f89b.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-321b82c30dffdf5f.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3dd8a6810a0bdfef.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-eb39a61c0c879984.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-aa769569f91c3548.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-510a192a50a983ed.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-0577018320f99037.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-193cf992125ccd4c.rlib" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-8e138eaf26ebb4a8.rlib" "-Wl,-Bdynamic" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `<arrayfire::array::Array<T> as core::ops::drop::Drop>::drop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:544: undefined reference to `af_release_array'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::statistics::mean_all':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/statistics/mod.rs:255: undefined reference to `af_mean_all'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::arith::add_helper':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:408: undefined reference to `af_add'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::arith::div_helper':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:408: undefined reference to `af_div'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::arith::mul_helper':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:408: undefined reference to `af_mul'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::arith::pow_helper':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:408: undefined reference to `af_pow'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::arith::sub_helper':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:408: undefined reference to `af_sub'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::arith::abs':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:124: undefined reference to `af_abs'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::arith::sqrt':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:124: undefined reference to `af_sqrt'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::arith::gt_helper':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:508: undefined reference to `af_gt'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::array::Array<T>::new':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:180: undefined reference to `af_create_array'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::array::Array<T>::dims':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:300: undefined reference to `af_get_dims'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::array::Array<T>::is_scalar':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:153: undefined reference to `af_is_scalar'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.0.rcgu.o: in function `arrayfire::array::print_gen':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:626: undefined reference to `af_print_array_gen'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.3.rcgu.o: in function `arrayfire::blas::matmul':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/blas/mod.rs:47: undefined reference to `af_matmul'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.3.rcgu.o: in function `arrayfire::blas::transpose':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/blas/mod.rs:107: undefined reference to `af_transpose'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.3.rcgu.o: in function `arrayfire::data::tile':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/data/mod.rs:490: undefined reference to `af_tile'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.3.rcgu.o: in function `arrayfire::data::select':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/data/mod.rs:701: undefined reference to `af_select'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-939155753f148a6d.rustlearn.e7f69d55fa5aaa9-cgu.3.rcgu.o: in function `arrayfire::data::join_many':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/data/mod.rs:460: undefined reference to `af_join_many'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libarrayfire-dc4bbef9c3a8b832.rlib(arrayfire-dc4bbef9c3a8b832.arrayfire.841e6636bea032a0-cgu.0.rcgu.o): in function `<arrayfire::array::Array<T> as core::clone::Clone>::clone':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:528: undefined reference to `af_retain_array'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libarrayfire-dc4bbef9c3a8b832.rlib(arrayfire-dc4bbef9c3a8b832.arrayfire.841e6636bea032a0-cgu.0.rcgu.o): in function `<arrayfire::array::Array<T> as core::ops::drop::Drop>::drop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:544: undefined reference to `af_release_array'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libarrayfire-dc4bbef9c3a8b832.rlib(arrayfire-dc4bbef9c3a8b832.arrayfire.841e6636bea032a0-cgu.0.rcgu.o): in function `arrayfire::error::get_last_error':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/error.rs:104: undefined reference to `af_get_last_error'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libarrayfire-dc4bbef9c3a8b832.rlib(arrayfire-dc4bbef9c3a8b832.arrayfire.841e6636bea032a0-cgu.0.rcgu.o): in function `arrayfire::util::free_host':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/util.rs:68: undefined reference to `af_free_host'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libarrayfire-dc4bbef9c3a8b832.rlib(arrayfire-dc4bbef9c3a8b832.arrayfire.841e6636bea032a0-cgu.0.rcgu.o): in function `<f32 as arrayfire::data::ConstGenerator>::generate':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/data/mod.rs:217: undefined reference to `af_constant'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustlearn` (bin "rustlearn") due to 2 previous errors; 11 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "acb1c3c8a6a8d4991accc8b62b62322838eb0b2969b4a161566f53a1c9393e3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb1c3c8a6a8d4991accc8b62b62322838eb0b2969b4a161566f53a1c9393e3b", kill_on_drop: false }`
[INFO] [stdout] acb1c3c8a6a8d4991accc8b62b62322838eb0b2969b4a161566f53a1c9393e3b
[INFO] testing ContainedBlargh/rustlearn against beta-2023-12-22 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FContainedBlargh%2Frustlearn" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ContainedBlargh/rustlearn on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ContainedBlargh/rustlearn
[INFO] finished tweaking git repo https://github.com/ContainedBlargh/rustlearn
[INFO] tweaked toml for git repo https://github.com/ContainedBlargh/rustlearn written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ContainedBlargh/rustlearn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f00e9d1dc47396d5956f8127b184dcee52eacdb78fae30d6bcb0ad99daa81be8
[INFO] running `Command { std: "docker" "start" "-a" "f00e9d1dc47396d5956f8127b184dcee52eacdb78fae30d6bcb0ad99daa81be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f00e9d1dc47396d5956f8127b184dcee52eacdb78fae30d6bcb0ad99daa81be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f00e9d1dc47396d5956f8127b184dcee52eacdb78fae30d6bcb0ad99daa81be8", kill_on_drop: false }`
[INFO] [stdout] f00e9d1dc47396d5956f8127b184dcee52eacdb78fae30d6bcb0ad99daa81be8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0f35f88082dadeeb5db077107879f08dec8cb71dca1d4d482e24577a4854e00
[INFO] running `Command { std: "docker" "start" "-a" "a0f35f88082dadeeb5db077107879f08dec8cb71dca1d4d482e24577a4854e00", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling bstr v0.2.8
[INFO] [stderr]    Compiling statistical v1.0.0
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling arrayfire v3.6.2
[INFO] [stderr]    Compiling rustlearn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/main.rs:95:6
[INFO] [stdout]    |
[INFO] [stdout] 95 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/fc.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |             (Some(x), Some(y)) => {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |     for i in 0..epochs {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:69:35
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     .filter_map(|(i, r)| {
[INFO] [stdout]    |                                   ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `arrayfire_test` is never used
[INFO] [stdout]   --> src/main.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn arrayfire_test() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fc_test` is never used
[INFO] [stdout]   --> src/main.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn fc_test() {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `softmax` is never used
[INFO] [stdout]   --> src/utils.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn softmax(x: &Array<f32>) -> Array<f32> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `softmax_deriv` is never used
[INFO] [stdout]   --> src/utils.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub fn softmax_deriv(x: &Array<f32>) -> Array<f32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_random_fc` is never used
[INFO] [stdout]    --> src/fc.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn init_random_fc(input_size: u64, output_size: u64) -> FCLayer {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_identity_fc` is never used
[INFO] [stdout]    --> src/fc.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub fn init_identity_fc(input_size: u64, output_size: u64) -> FCLayer {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Y` should have a snake case name
[INFO] [stdout]   --> src/main.rs:91:26
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn mean_square_error(Y: &Array<f32>, y: &Array<f32>) -> f32 {
[INFO] [stdout]    |                          ^ help: convert the identifier to snake case (notice the capitalization): `y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: LC_ALL="C" PATH="/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin:/opt/rustwide/cargo-home/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustcfG6AyO/symbols.o" "/opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.2cwtqjuatq8rygfe.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/arrayfire/lib" "-L" "/opt/arrayfire/lib64" "-L" "/usr/local/lib" "-L" "/usr/lib" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libstatistical-55a6963b93ac74fd.rlib" "/opt/rustwide/target/debug/deps/librand-85d0122f57d42311.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-fddfb659da58e4bf.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-df4a128a5ebc6998.rlib" "/opt/rustwide/target/debug/deps/librand_hc-04e4f418b9ab77db.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-8b5ab24ff66b14c5.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-0a7dc632816af8d7.rlib" "/opt/rustwide/target/debug/deps/librand_core-93fd6fb9d20da204.rlib" "/opt/rustwide/target/debug/deps/librand_os-9c19d719041e1eb0.rlib" "/opt/rustwide/target/debug/deps/librand_jitter-628645d750895e52.rlib" "/opt/rustwide/target/debug/deps/librand_core-1adf33305417fb82.rlib" "/opt/rustwide/target/debug/deps/libcsv-2a9e890d67f12d73.rlib" "/opt/rustwide/target/debug/deps/libryu-f928ad285dae3371.rlib" "/opt/rustwide/target/debug/deps/libitoa-59938b0426d35459.rlib" "/opt/rustwide/target/debug/deps/libcsv_core-aa9169c3aee30fd7.rlib" "/opt/rustwide/target/debug/deps/libbstr-e6205d83c0b975e3.rlib" "/opt/rustwide/target/debug/deps/libregex_automata-92891fecee258669.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-1afd9748b3b368eb.rlib" "/opt/rustwide/target/debug/deps/libmemchr-8dba6d1b1c5926ab.rlib" "/opt/rustwide/target/debug/deps/libserde-41ab0345e6d95048.rlib" "/opt/rustwide/target/debug/deps/librand_distr-b67f1177882c446a.rlib" "/opt/rustwide/target/debug/deps/librand-9dfa4f5bd436df18.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-84603409ea6d8039.rlib" "/opt/rustwide/target/debug/deps/libc2_chacha-23a618f2358e1ac7.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-c783b57b3d86d626.rlib" "/opt/rustwide/target/debug/deps/librand_core-613ada442d762c96.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-50e4018bf4906ddf.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-e83968822db62928.rlib" "/opt/rustwide/target/debug/deps/libarrayfire-4b5af736ec276296.rlib" "/opt/rustwide/target/debug/deps/libnum-972d1697430740ea.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-df692cb00cdbf082.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-6456cd7496d46f99.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-87f98cf5443cb7a8.rlib" "/opt/rustwide/target/debug/deps/libnum_bigint-ae2a2fddd670b609.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-e0611d2d5eac638a.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-fd9a0848123dec14.rlib" "/opt/rustwide/target/debug/deps/liblibc-64747d45fea3a4b0.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-efa3519517df6cf0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-0672489a78b613de.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-7eb3ffc34a49f675.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-6478a9daa4bee8e2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-0c75d871a5c3923d.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d163ef63ad37bb71.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-8a3fd810a85b9f4c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-462a2cde8c5dfc10.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-cb06ac9f54713f71.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-f20bfd1f8e59b393.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-1ef460949b49da4b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-2cb0c0ffe4f87514.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-58d841eb322a11a2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-aa2ae0b0a9d11533.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-23874e15830ed336.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-e47cddc003bce885.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c22b13b48a8f128e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-e46bc3da6d7c462f.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8d1ac131d3cb2645.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-a1b43df8c6899c1f.rlib" "-Wl,-Bdynamic" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.2.rcgu.o: in function `arrayfire::statistics::mean_all':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/statistics/mod.rs:255: undefined reference to `af_mean_all'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.2.rcgu.o: in function `arrayfire::arith::add_helper':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:408: undefined reference to `af_add'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.2.rcgu.o: in function `arrayfire::arith::div_helper':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:408: undefined reference to `af_div'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.2.rcgu.o: in function `arrayfire::arith::mul_helper':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:408: undefined reference to `af_mul'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.2.rcgu.o: in function `arrayfire::arith::pow_helper':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:408: undefined reference to `af_pow'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.2.rcgu.o: in function `arrayfire::arith::sub_helper':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:408: undefined reference to `af_sub'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.2.rcgu.o: in function `arrayfire::arith::abs':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:124: undefined reference to `af_abs'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.2.rcgu.o: in function `arrayfire::arith::sqrt':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:124: undefined reference to `af_sqrt'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.2.rcgu.o: in function `arrayfire::arith::gt_helper':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/arith/mod.rs:508: undefined reference to `af_gt'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.3.rcgu.o: in function `<arrayfire::array::Array<T> as core::ops::drop::Drop>::drop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:544: undefined reference to `af_release_array'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.3.rcgu.o: in function `arrayfire::blas::matmul':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/blas/mod.rs:47: undefined reference to `af_matmul'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.3.rcgu.o: in function `arrayfire::blas::transpose':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/blas/mod.rs:107: undefined reference to `af_transpose'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.3.rcgu.o: in function `arrayfire::data::tile':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/data/mod.rs:490: undefined reference to `af_tile'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.3.rcgu.o: in function `arrayfire::data::select':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/data/mod.rs:701: undefined reference to `af_select'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.3.rcgu.o: in function `arrayfire::data::join_many':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/data/mod.rs:460: undefined reference to `af_join_many'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.3.rcgu.o: in function `arrayfire::array::Array<T>::new':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:180: undefined reference to `af_create_array'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.3.rcgu.o: in function `arrayfire::array::Array<T>::dims':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:300: undefined reference to `af_get_dims'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.3.rcgu.o: in function `arrayfire::array::Array<T>::is_scalar':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:153: undefined reference to `af_is_scalar'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/rustlearn-0599d054ebe9a1c2.rustlearn.f4e8b9800ac338e5-cgu.3.rcgu.o: in function `arrayfire::array::print_gen':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:626: undefined reference to `af_print_array_gen'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libarrayfire-4b5af736ec276296.rlib(arrayfire-4b5af736ec276296.arrayfire.a387b4921d91cdda-cgu.0.rcgu.o): in function `<arrayfire::array::Array<T> as core::clone::Clone>::clone':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:528: undefined reference to `af_retain_array'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libarrayfire-4b5af736ec276296.rlib(arrayfire-4b5af736ec276296.arrayfire.a387b4921d91cdda-cgu.0.rcgu.o): in function `<arrayfire::array::Array<T> as core::ops::drop::Drop>::drop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/array.rs:544: undefined reference to `af_release_array'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libarrayfire-4b5af736ec276296.rlib(arrayfire-4b5af736ec276296.arrayfire.a387b4921d91cdda-cgu.0.rcgu.o): in function `arrayfire::util::free_host':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/util.rs:68: undefined reference to `af_free_host'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libarrayfire-4b5af736ec276296.rlib(arrayfire-4b5af736ec276296.arrayfire.a387b4921d91cdda-cgu.0.rcgu.o): in function `<f32 as arrayfire::data::ConstGenerator>::generate':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/data/mod.rs:217: undefined reference to `af_constant'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libarrayfire-4b5af736ec276296.rlib(arrayfire-4b5af736ec276296.arrayfire.a387b4921d91cdda-cgu.1.rcgu.o): in function `arrayfire::error::get_last_error':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/arrayfire-3.6.2/src/error.rs:104: undefined reference to `af_get_last_error'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustlearn` (bin "rustlearn") due to 2 previous errors; 11 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a0f35f88082dadeeb5db077107879f08dec8cb71dca1d4d482e24577a4854e00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0f35f88082dadeeb5db077107879f08dec8cb71dca1d4d482e24577a4854e00", kill_on_drop: false }`
[INFO] [stdout] a0f35f88082dadeeb5db077107879f08dec8cb71dca1d4d482e24577a4854e00
