[INFO] cloning repository https://github.com/kamilduda/mnist_classification [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kamilduda/mnist_classification" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamilduda%2Fmnist_classification", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamilduda%2Fmnist_classification'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8aa45a1680583211e6fe203b342a6f181223ce25 [INFO] checking kamilduda/mnist_classification against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamilduda%2Fmnist_classification" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/kamilduda/mnist_classification [INFO] finished tweaking git repo https://github.com/kamilduda/mnist_classification [INFO] tweaked toml for git repo https://github.com/kamilduda/mnist_classification written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/kamilduda/mnist_classification on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/kamilduda/mnist_classification 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded noisy_float v0.1.12 [INFO] [stderr] Downloaded ndarray-rand v0.11.0 [INFO] [stderr] Downloaded flate2 v1.0.16 [INFO] [stderr] Downloaded ndarray-stats v0.3.0 [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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7a786014083ccc9251d724713cca80f3defa3cdc1a9a5f3ad5f985a527895aaf [INFO] running `Command { std: "docker" "start" "-a" "7a786014083ccc9251d724713cca80f3defa3cdc1a9a5f3ad5f985a527895aaf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7a786014083ccc9251d724713cca80f3defa3cdc1a9a5f3ad5f985a527895aaf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a786014083ccc9251d724713cca80f3defa3cdc1a9a5f3ad5f985a527895aaf", kill_on_drop: false }` [INFO] [stdout] 7a786014083ccc9251d724713cca80f3defa3cdc1a9a5f3ad5f985a527895aaf [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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 67ee97596762c3d26a37de9d7cc32b94f44f63ab8f484e9ba0dfab44b34553f2 [INFO] running `Command { std: "docker" "start" "-a" "67ee97596762c3d26a37de9d7cc32b94f44f63ab8f484e9ba0dfab44b34553f2", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling hashbrown v0.8.1 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Compiling ndarray v0.13.1 [INFO] [stderr] Checking miniz_oxide v0.4.0 [INFO] [stderr] Compiling indexmap v1.5.0 [INFO] [stderr] Checking gimli v0.22.0 [INFO] [stderr] Compiling error-chain v0.12.2 [INFO] [stderr] Checking object v0.20.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_pcg v0.2.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking noisy_float v0.1.12 [INFO] [stderr] Checking log v0.4.8 [INFO] [stderr] Checking flate2 v1.0.16 [INFO] [stderr] Checking approx v0.3.2 [INFO] [stderr] Checking rand_distr v0.2.2 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking addr2line v0.13.0 [INFO] [stderr] Checking backtrace v0.3.50 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking ndarray-rand v0.11.0 [INFO] [stderr] Checking ndarray-stats v0.3.0 [INFO] [stderr] Checking mnist_classification v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition name: `has_error_description_deprecated` [INFO] [stdout] --> src/infrastructure/mnist_loader/error.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | / error_chain! { [INFO] [stdout] 4 | | foreign_links { [INFO] [stdout] 5 | | IoError(::std::io::Error); [INFO] [stdout] ... | [INFO] [stdout] 29 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stdout] = help: try referring to `impl_error_chain_processed` crate for guidance on how handle this unexpected cfg [INFO] [stdout] = help: the macro `impl_error_chain_processed` may come from an old version of the `error_chain` crate, try updating your dependency with `cargo update -p error_chain` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FlatFileReader` is never constructed [INFO] [stdout] --> src/infrastructure/mnist_loader/file_reader/flat_file_reader.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct FlatFileReader; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `exp` is never used [INFO] [stdout] --> src/algebra/mod.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 5 | impl Algebra { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn exp(array: &Array) -> Array [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `has_error_description_deprecated` [INFO] [stdout] --> src/infrastructure/mnist_loader/error.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | / error_chain! { [INFO] [stdout] 4 | | foreign_links { [INFO] [stdout] 5 | | IoError(::std::io::Error); [INFO] [stdout] ... | [INFO] [stdout] 29 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `docsrs`, `feature`, and `test` and 31 more [INFO] [stdout] = note: using a cfg inside a macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stdout] = help: try referring to `impl_error_chain_processed` crate for guidance on how handle this unexpected cfg [INFO] [stdout] = help: the macro `impl_error_chain_processed` may come from an old version of the `error_chain` crate, try updating your dependency with `cargo update -p error_chain` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/prelude/mod.rs:285:13 [INFO] [stdout] | [INFO] [stdout] 285 | let mut network = NeuralNetwork::new(&layers_sizes); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.80s [INFO] running `Command { std: "docker" "inspect" "67ee97596762c3d26a37de9d7cc32b94f44f63ab8f484e9ba0dfab44b34553f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "67ee97596762c3d26a37de9d7cc32b94f44f63ab8f484e9ba0dfab44b34553f2", kill_on_drop: false }` [INFO] [stdout] 67ee97596762c3d26a37de9d7cc32b94f44f63ab8f484e9ba0dfab44b34553f2