[INFO] cloning repository https://github.com/wolfandreh/mnist-digit-recognition-in-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wolfandreh/mnist-digit-recognition-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwolfandreh%2Fmnist-digit-recognition-in-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwolfandreh%2Fmnist-digit-recognition-in-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fdbb50fd91df2be4d23620cfce14c1bcb7be6b2d [INFO] testing wolfandreh/mnist-digit-recognition-in-rust against 1.75.0 for beta-1.76-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwolfandreh%2Fmnist-digit-recognition-in-rust" "/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/wolfandreh/mnist-digit-recognition-in-rust 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/wolfandreh/mnist-digit-recognition-in-rust [INFO] finished tweaking git repo https://github.com/wolfandreh/mnist-digit-recognition-in-rust [INFO] tweaked toml for git repo https://github.com/wolfandreh/mnist-digit-recognition-in-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/wolfandreh/mnist-digit-recognition-in-rust 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 pkg-config v0.3.19 [INFO] [stderr] Downloaded syn v0.14.9 [INFO] [stderr] Downloaded mindtree_utils v0.4.0 [INFO] [stderr] Downloaded savefile-derive v0.8.1 [INFO] [stderr] Downloaded bytemuck v1.5.1 [INFO] [stderr] Downloaded memoffset v0.6.4 [INFO] [stderr] Downloaded crossbeam-deque v0.8.0 [INFO] [stderr] Downloaded mnist v0.4.1 [INFO] [stderr] Downloaded bit-vec v0.6.3 [INFO] [stderr] Downloaded crossbeam-utils v0.8.5 [INFO] [stderr] Downloaded png v0.16.8 [INFO] [stderr] Downloaded tiff v0.6.1 [INFO] [stderr] Downloaded bzip2-sys v0.1.11+1.0.8 [INFO] [stderr] Downloaded web-sys v0.3.51 [INFO] [stderr] Downloaded ndarray v0.15.3 [INFO] [stderr] Downloaded image v0.23.14 [INFO] [stderr] Downloaded libc v0.2.95 [INFO] [stderr] Downloaded syn v1.0.73 [INFO] [stderr] Downloaded crossbeam-channel v0.5.1 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.5 [INFO] [stderr] Downloaded cc v1.0.68 [INFO] [stderr] Downloaded gif v0.11.2 [INFO] [stderr] Downloaded rayon-core v1.9.1 [INFO] [stderr] Downloaded rayon v1.5.1 [INFO] [stderr] Downloaded weezl v0.1.5 [INFO] [stderr] Downloaded matrixmultiply v0.3.1 [INFO] [stderr] Downloaded num-complex v0.4.0 [INFO] [stderr] Downloaded js-sys v0.3.51 [INFO] [stderr] Downloaded proc-macro2 v1.0.27 [INFO] [stderr] Downloaded savefile v0.8.1 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.74 [INFO] [stderr] Downloaded wasm-bindgen v0.2.74 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.74 [INFO] [stderr] Downloaded deflate v0.8.6 [INFO] [stderr] Downloaded miniz_oxide v0.3.7 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.74 [INFO] [stderr] Downloaded crc32fast v1.2.1 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.74 [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] e25fcabefb64069b3dc837049a3c8fc005397bceb17fba0600d792f198667eb5 [INFO] running `Command { std: "docker" "start" "-a" "e25fcabefb64069b3dc837049a3c8fc005397bceb17fba0600d792f198667eb5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e25fcabefb64069b3dc837049a3c8fc005397bceb17fba0600d792f198667eb5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e25fcabefb64069b3dc837049a3c8fc005397bceb17fba0600d792f198667eb5", kill_on_drop: false }` [INFO] [stdout] e25fcabefb64069b3dc837049a3c8fc005397bceb17fba0600d792f198667eb5 [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] 61751e0979d9a6f31e63e18bb9301664be394c5ab61ed17ad2d4012aa1efcfa7 [INFO] running `Command { std: "docker" "start" "-a" "61751e0979d9a6f31e63e18bb9301664be394c5ab61ed17ad2d4012aa1efcfa7", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.95 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling cc v1.0.68 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling pkg-config v0.3.19 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling crossbeam-channel v0.5.1 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Compiling bzip2-sys v0.1.11+1.0.8 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling adler32 v1.2.0 [INFO] [stderr] Compiling num-bigint v0.1.44 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling weezl v0.1.5 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling adler v1.0.2 [INFO] [stderr] Compiling parking_lot_core v0.7.2 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling num-rational v0.1.42 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling savefile v0.8.1 [INFO] [stderr] Compiling miniz_oxide v0.3.7 [INFO] [stderr] Compiling deflate v0.8.6 [INFO] [stderr] Compiling num-complex v0.1.43 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling lock_api v0.3.4 [INFO] [stderr] Compiling hashbrown v0.11.2 [INFO] [stderr] Compiling untrusted v0.7.1 [INFO] [stderr] Compiling spin v0.5.2 [INFO] [stderr] Compiling once_cell v1.8.0 [INFO] [stderr] Compiling color_quant v1.1.0 [INFO] [stderr] Compiling png v0.16.8 [INFO] [stderr] Compiling gif v0.11.2 [INFO] [stderr] Compiling parking_lot v0.10.2 [INFO] [stderr] Compiling jpeg-decoder v0.1.22 [INFO] [stderr] Compiling matrixmultiply v0.3.1 [INFO] [stderr] Compiling num v0.1.42 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling bzip2 v0.3.3 [INFO] [stderr] Compiling tiff v0.6.1 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling num-complex v0.4.0 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling arrayvec v0.5.2 [INFO] [stderr] Compiling bytemuck v1.5.1 [INFO] [stderr] Compiling mindtree_utils v0.4.0 [INFO] [stderr] Compiling image v0.23.14 [INFO] [stderr] Compiling ndarray v0.15.3 [INFO] [stderr] Compiling mnist v0.4.1 [INFO] [stderr] Compiling savefile-derive v0.8.1 [INFO] [stderr] Compiling imagerecognizer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::collections::hash_map::DefaultHasher` [INFO] [stdout] --> src/network.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::collections::hash_map::DefaultHasher; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ptr::hash` [INFO] [stdout] --> src/network.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::ptr::hash; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BigEndian`, `ReadBytesExt` [INFO] [stdout] --> src/io.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | use byteorder::{BigEndian, ReadBytesExt}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryInto` [INFO] [stdout] --> src/io.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/network.rs:40:17 [INFO] [stdout] | [INFO] [stdout] 40 | let mut n = 0; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/network.rs:44:17 [INFO] [stdout] | [INFO] [stdout] 44 | for i in 0..*size { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/network.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut n = 0; [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: unused variable: `i` [INFO] [stdout] --> src/network.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | for i in 0..*x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `j` [INFO] [stdout] --> src/network.rs:73:21 [INFO] [stdout] | [INFO] [stdout] 73 | for j in 0..*y { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/network.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | let n = training_data.len(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/network.rs:112:17 [INFO] [stdout] | [INFO] [stdout] 112 | for i in 0..*mini_batch_size { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/network.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | mut training_data: &Vec>>, [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `max_ele` [INFO] [stdout] --> src/network.rs:437:13 [INFO] [stdout] | [INFO] [stdout] 437 | let mut max_ele: f64; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_ele` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/network.rs:441:13 [INFO] [stdout] | [INFO] [stdout] 441 | let mut next: usize; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vec_width` [INFO] [stdout] --> src/io.rs:112:9 [INFO] [stdout] | [INFO] [stdout] 112 | let vec_width = input.len() / image_len; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vec_width` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/io.rs:113:9 [INFO] [stdout] | [INFO] [stdout] 113 | let mut target_vec: Vec> = input.chunks(image_len) [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `check_option` is never used [INFO] [stdout] --> src/network.rs:354:4 [INFO] [stdout] | [INFO] [stdout] 354 | fn check_option(o: Option<&f64>) -> f64{ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `subtract_vec` is never used [INFO] [stdout] --> src/network.rs:418:4 [INFO] [stdout] | [INFO] [stdout] 418 | fn subtract_vec(a: &Vec, b: &Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sig` is never used [INFO] [stdout] --> src/network.rs:468:4 [INFO] [stdout] | [INFO] [stdout] 468 | fn sig(x: f64) -> f64 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `train_array_2d`, `train_label`, `validation_array_2d`, `validation_label`, `test_array_2d`, and `test_label` are never read [INFO] [stdout] --> src/io.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 40 | pub struct TrainData { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 41 | train_array_2d: Vec>, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 42 | train_label: Vec, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 43 | pub training_data: Vec>>, [INFO] [stdout] 44 | validation_array_2d: Vec>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 45 | validation_label: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] 46 | pub validation_data: Vec<(Vec, i32)>, [INFO] [stdout] 47 | test_array_2d: Vec>, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 48 | test_label: Vec, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `pack_images` is never used [INFO] [stdout] --> src/io.rs:90:4 [INFO] [stdout] | [INFO] [stdout] 90 | fn pack_images(input_vector: Vec, rows: u8, cols: u8) -> Array2 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 38.07s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24, syn v0.14.9 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "61751e0979d9a6f31e63e18bb9301664be394c5ab61ed17ad2d4012aa1efcfa7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "61751e0979d9a6f31e63e18bb9301664be394c5ab61ed17ad2d4012aa1efcfa7", kill_on_drop: false }` [INFO] [stdout] 61751e0979d9a6f31e63e18bb9301664be394c5ab61ed17ad2d4012aa1efcfa7 [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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9597d067541d62f0f497381b2aeb7a4d4c737a4637e967592072c12e1253209c [INFO] running `Command { std: "docker" "start" "-a" "9597d067541d62f0f497381b2aeb7a4d4c737a4637e967592072c12e1253209c", kill_on_drop: false }` [INFO] [stderr] Compiling imagerecognizer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::collections::hash_map::DefaultHasher` [INFO] [stdout] --> src/network.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::collections::hash_map::DefaultHasher; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ptr::hash` [INFO] [stdout] --> src/network.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::ptr::hash; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BigEndian`, `ReadBytesExt` [INFO] [stdout] --> src/io.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | use byteorder::{BigEndian, ReadBytesExt}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::convert::TryInto` [INFO] [stdout] --> src/io.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/network.rs:40:17 [INFO] [stdout] | [INFO] [stdout] 40 | let mut n = 0; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/network.rs:44:17 [INFO] [stdout] | [INFO] [stdout] 44 | for i in 0..*size { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/network.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | let mut n = 0; [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: unused variable: `i` [INFO] [stdout] --> src/network.rs:71:17 [INFO] [stdout] | [INFO] [stdout] 71 | for i in 0..*x { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `j` [INFO] [stdout] --> src/network.rs:73:21 [INFO] [stdout] | [INFO] [stdout] 73 | for j in 0..*y { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/network.rs:97:13 [INFO] [stdout] | [INFO] [stdout] 97 | let n = training_data.len(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/network.rs:112:17 [INFO] [stdout] | [INFO] [stdout] 112 | for i in 0..*mini_batch_size { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/network.rs:90:9 [INFO] [stdout] | [INFO] [stdout] 90 | mut training_data: &Vec>>, [INFO] [stdout] | ----^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `max_ele` [INFO] [stdout] --> src/network.rs:437:13 [INFO] [stdout] | [INFO] [stdout] 437 | let mut max_ele: f64; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_ele` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/network.rs:441:13 [INFO] [stdout] | [INFO] [stdout] 441 | let mut next: usize; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vec_width` [INFO] [stdout] --> src/io.rs:112:9 [INFO] [stdout] | [INFO] [stdout] 112 | let vec_width = input.len() / image_len; [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vec_width` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/io.rs:113:9 [INFO] [stdout] | [INFO] [stdout] 113 | let mut target_vec: Vec> = input.chunks(image_len) [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `check_option` is never used [INFO] [stdout] --> src/network.rs:354:4 [INFO] [stdout] | [INFO] [stdout] 354 | fn check_option(o: Option<&f64>) -> f64{ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `subtract_vec` is never used [INFO] [stdout] --> src/network.rs:418:4 [INFO] [stdout] | [INFO] [stdout] 418 | fn subtract_vec(a: &Vec, b: &Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sig` is never used [INFO] [stdout] --> src/network.rs:468:4 [INFO] [stdout] | [INFO] [stdout] 468 | fn sig(x: f64) -> f64 { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `train_array_2d`, `train_label`, `validation_array_2d`, `validation_label`, `test_array_2d`, and `test_label` are never read [INFO] [stdout] --> src/io.rs:41:5 [INFO] [stdout] | [INFO] [stdout] 40 | pub struct TrainData { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 41 | train_array_2d: Vec>, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 42 | train_label: Vec, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 43 | pub training_data: Vec>>, [INFO] [stdout] 44 | validation_array_2d: Vec>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 45 | validation_label: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] 46 | pub validation_data: Vec<(Vec, i32)>, [INFO] [stdout] 47 | test_array_2d: Vec>, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 48 | test_label: Vec, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `pack_images` is never used [INFO] [stdout] --> src/io.rs:90:4 [INFO] [stdout] | [INFO] [stdout] 90 | fn pack_images(input_vector: Vec, rows: u8, cols: u8) -> Array2 { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.62s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24, syn v0.14.9 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "9597d067541d62f0f497381b2aeb7a4d4c737a4637e967592072c12e1253209c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9597d067541d62f0f497381b2aeb7a4d4c737a4637e967592072c12e1253209c", kill_on_drop: false }` [INFO] [stdout] 9597d067541d62f0f497381b2aeb7a4d4c737a4637e967592072c12e1253209c [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" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] b3e74da1c72bcbde28201ddae3d08addea5997eddfb9244d6dd4b042d2c6f1ae [INFO] running `Command { std: "docker" "start" "-a" "b3e74da1c72bcbde28201ddae3d08addea5997eddfb9244d6dd4b042d2c6f1ae", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::collections::hash_map::DefaultHasher` [INFO] [stderr] --> src/network.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::collections::hash_map::DefaultHasher; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ptr::hash` [INFO] [stderr] --> src/network.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::ptr::hash; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `BigEndian`, `ReadBytesExt` [INFO] [stderr] --> src/io.rs:8:17 [INFO] [stderr] | [INFO] [stderr] 8 | use byteorder::{BigEndian, ReadBytesExt}; [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::convert::TryInto` [INFO] [stderr] --> src/io.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::convert::TryInto; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/network.rs:40:17 [INFO] [stderr] | [INFO] [stderr] 40 | let mut n = 0; [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/network.rs:44:17 [INFO] [stderr] | [INFO] [stderr] 44 | for i in 0..*size { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/network.rs:40:13 [INFO] [stderr] | [INFO] [stderr] 40 | let mut n = 0; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/network.rs:71:17 [INFO] [stderr] | [INFO] [stderr] 71 | for i in 0..*x { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `j` [INFO] [stderr] --> src/network.rs:73:21 [INFO] [stderr] | [INFO] [stderr] 73 | for j in 0..*y { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_j` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/network.rs:97:13 [INFO] [stderr] | [INFO] [stderr] 97 | let n = training_data.len(); [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/network.rs:112:17 [INFO] [stderr] | [INFO] [stderr] 112 | for i in 0..*mini_batch_size { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/network.rs:90:9 [INFO] [stderr] | [INFO] [stderr] 90 | mut training_data: &Vec>>, [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `max_ele` [INFO] [stderr] --> src/network.rs:437:13 [INFO] [stderr] | [INFO] [stderr] 437 | let mut max_ele: f64; [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_ele` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/network.rs:441:13 [INFO] [stderr] | [INFO] [stderr] 441 | let mut next: usize; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `vec_width` [INFO] [stderr] --> src/io.rs:112:9 [INFO] [stderr] | [INFO] [stderr] 112 | let vec_width = input.len() / image_len; [INFO] [stderr] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vec_width` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/io.rs:113:9 [INFO] [stderr] | [INFO] [stderr] 113 | let mut target_vec: Vec> = input.chunks(image_len) [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: function `check_option` is never used [INFO] [stderr] --> src/network.rs:354:4 [INFO] [stderr] | [INFO] [stderr] 354 | fn check_option(o: Option<&f64>) -> f64{ [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `subtract_vec` is never used [INFO] [stderr] --> src/network.rs:418:4 [INFO] [stderr] | [INFO] [stderr] 418 | fn subtract_vec(a: &Vec, b: &Vec) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `sig` is never used [INFO] [stderr] --> src/network.rs:468:4 [INFO] [stderr] | [INFO] [stderr] 468 | fn sig(x: f64) -> f64 { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: fields `train_array_2d`, `train_label`, `validation_array_2d`, `validation_label`, `test_array_2d`, and `test_label` are never read [INFO] [stderr] --> src/io.rs:41:5 [INFO] [stderr] | [INFO] [stderr] 40 | pub struct TrainData { [INFO] [stderr] | --------- fields in this struct [INFO] [stderr] 41 | train_array_2d: Vec>, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] 42 | train_label: Vec, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] 43 | pub training_data: Vec>>, [INFO] [stderr] 44 | validation_array_2d: Vec>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 45 | validation_label: Vec, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] 46 | pub validation_data: Vec<(Vec, i32)>, [INFO] [stderr] 47 | test_array_2d: Vec>, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] 48 | test_label: Vec, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function `pack_images` is never used [INFO] [stderr] --> src/io.rs:90:4 [INFO] [stderr] | [INFO] [stderr] 90 | fn pack_images(input_vector: Vec, rows: u8, cols: u8) -> Array2 { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `imagerecognizer` (bin "imagerecognizer" test) generated 21 warnings (run `cargo fix --bin "imagerecognizer" --tests` to apply 16 suggestions) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24, syn v0.14.9 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/imagerecognizer-b2af5ca498990088) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b3e74da1c72bcbde28201ddae3d08addea5997eddfb9244d6dd4b042d2c6f1ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b3e74da1c72bcbde28201ddae3d08addea5997eddfb9244d6dd4b042d2c6f1ae", kill_on_drop: false }` [INFO] [stdout] b3e74da1c72bcbde28201ddae3d08addea5997eddfb9244d6dd4b042d2c6f1ae