[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#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamilduda%2Fmnist_classification" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kamilduda/mnist_classification on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-2-tc1/source/Cargo.toml [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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded indexmap v1.5.0 [INFO] [stderr] Downloaded hashbrown v0.8.1 [INFO] [stderr] Downloaded ndarray-rand v0.11.0 [INFO] [stderr] Downloaded noisy_float v0.1.12 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9b5554e4361b9524ffca4ef51c8bb3fdabf03435cc84aa3ea52aed482021208b [INFO] running `Command { std: "docker" "start" "-a" "9b5554e4361b9524ffca4ef51c8bb3fdabf03435cc84aa3ea52aed482021208b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9b5554e4361b9524ffca4ef51c8bb3fdabf03435cc84aa3ea52aed482021208b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b5554e4361b9524ffca4ef51c8bb3fdabf03435cc84aa3ea52aed482021208b", kill_on_drop: false }` [INFO] [stdout] 9b5554e4361b9524ffca4ef51c8bb3fdabf03435cc84aa3ea52aed482021208b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e8dca185808367c178e34825b5f34e958709765cb86ce57691d419a6332c1929 [INFO] running `Command { std: "docker" "start" "-a" "e8dca185808367c178e34825b5f34e958709765cb86ce57691d419a6332c1929", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Compiling ndarray v0.13.1 [INFO] [stderr] Checking gimli v0.22.0 [INFO] [stderr] Compiling crc32fast v1.2.0 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking object v0.20.0 [INFO] [stderr] Checking matrixmultiply v0.2.3 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking miniz_oxide v0.4.0 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling hashbrown v0.8.1 [INFO] [stderr] Compiling indexmap v1.5.0 [INFO] [stderr] Compiling error-chain v0.12.2 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking flate2 v1.0.16 [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 approx v0.3.2 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking addr2line v0.13.0 [INFO] [stderr] Checking rand_distr v0.2.2 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking backtrace v0.3.50 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking ndarray-stats v0.3.0 [INFO] [stderr] Checking ndarray-rand v0.11.0 [INFO] [stderr] Checking mnist_classification v0.1.0 (/opt/rustwide/workdir) [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] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.14s [INFO] running `Command { std: "docker" "inspect" "e8dca185808367c178e34825b5f34e958709765cb86ce57691d419a6332c1929", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8dca185808367c178e34825b5f34e958709765cb86ce57691d419a6332c1929", kill_on_drop: false }` [INFO] [stdout] e8dca185808367c178e34825b5f34e958709765cb86ce57691d419a6332c1929 [INFO] checking kamilduda/mnist_classification against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamilduda%2Fmnist_classification" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kamilduda/mnist_classification on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-2-tc2/source/Cargo.toml [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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b3d4230d19dd5f393192d4f1fa0a5219e1e90bd6b94e5abe88944130b1bd45eb [INFO] running `Command { std: "docker" "start" "-a" "b3d4230d19dd5f393192d4f1fa0a5219e1e90bd6b94e5abe88944130b1bd45eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b3d4230d19dd5f393192d4f1fa0a5219e1e90bd6b94e5abe88944130b1bd45eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3d4230d19dd5f393192d4f1fa0a5219e1e90bd6b94e5abe88944130b1bd45eb", kill_on_drop: false }` [INFO] [stdout] b3d4230d19dd5f393192d4f1fa0a5219e1e90bd6b94e5abe88944130b1bd45eb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6f099404a70b68da913fe6fd2077c739a59c84faf778b25aa4908a7495606ef1 [INFO] running `Command { std: "docker" "start" "-a" "6f099404a70b68da913fe6fd2077c739a59c84faf778b25aa4908a7495606ef1", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Compiling ndarray v0.13.1 [INFO] [stderr] Checking gimli v0.22.0 [INFO] [stderr] Compiling crc32fast v1.2.0 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking matrixmultiply v0.2.3 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking object v0.20.0 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking miniz_oxide v0.4.0 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling hashbrown v0.8.1 [INFO] [stderr] Compiling indexmap v1.5.0 [INFO] [stderr] Compiling error-chain v0.12.2 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking flate2 v1.0.16 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking noisy_float v0.1.12 [INFO] [stderr] Checking approx v0.3.2 [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 addr2line v0.13.0 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking backtrace v0.3.50 [INFO] [stderr] Checking rand_distr v0.2.2 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking ndarray-stats v0.3.0 [INFO] [stderr] Checking ndarray-rand v0.11.0 [INFO] [stderr] Checking mnist_classification v0.1.0 (/opt/rustwide/workdir) [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] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.73s [INFO] running `Command { std: "docker" "inspect" "6f099404a70b68da913fe6fd2077c739a59c84faf778b25aa4908a7495606ef1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f099404a70b68da913fe6fd2077c739a59c84faf778b25aa4908a7495606ef1", kill_on_drop: false }` [INFO] [stdout] 6f099404a70b68da913fe6fd2077c739a59c84faf778b25aa4908a7495606ef1