[INFO] updating cached repository https://github.com/emilio/nn [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e8cda885b450db2983bd4b503ff00a19cba5dce0 [INFO] testing emilio/nn against 1.38.0 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Femilio%2Fnn" "work/builds/worker-2/source"` [INFO] [stderr] Cloning into 'work/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/emilio/nn on toolchain 1.38.0 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/emilio/nn [INFO] finished tweaking git repo https://github.com/emilio/nn [INFO] tweaked toml for git repo https://github.com/emilio/nn written to work/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/emilio/nn already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"` [INFO] [stdout] df93ceade009e3ecf0bd16b03c94ea413e8f7c992882f26056dfe48d35ce5733 [INFO] running `"docker" "start" "-a" "df93ceade009e3ecf0bd16b03c94ea413e8f7c992882f26056dfe48d35ce5733"` [INFO] [stderr] Compiling gcc v0.3.49 [INFO] [stderr] Compiling unicode-segmentation v1.2.0 [INFO] [stderr] Compiling term_size v0.3.0 [INFO] [stderr] Compiling clap v2.24.2 [INFO] [stderr] Compiling cmake v0.1.24 [INFO] [stderr] Compiling neural-networks-practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: the item `slice` is imported redundantly [INFO] [stderr] --> src/main.rs:527:9 [INFO] [stderr] | [INFO] [stderr] 23 | use std::{io, fs, path, slice}; [INFO] [stderr] | ----- the item `slice` is already imported here [INFO] [stderr] ... [INFO] [stderr] 527 | use std::slice; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the item `slice` is imported redundantly [INFO] [stderr] --> src/main.rs:546:9 [INFO] [stderr] | [INFO] [stderr] 23 | use std::{io, fs, path, slice}; [INFO] [stderr] | ----- the item `slice` is already imported here [INFO] [stderr] ... [INFO] [stderr] 546 | use std::slice; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:215:21 [INFO] [stderr] | [INFO] [stderr] 215 | let (l, mut r) = self.layers.split_at_mut(i); [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: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:226:17 [INFO] [stderr] | [INFO] [stderr] 226 | let mut output_layer = self.layers.last_mut().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:238:21 [INFO] [stderr] | [INFO] [stderr] 238 | let mut this_layer = match iter.next() { [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:259:24 [INFO] [stderr] | [INFO] [stderr] 259 | while let Some(mut previous_layer) = next { [INFO] [stderr] | ----^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:260:17 [INFO] [stderr] | [INFO] [stderr] 260 | let mut this_layer = match iter.next() { [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.50s [INFO] running `"docker" "inspect" "df93ceade009e3ecf0bd16b03c94ea413e8f7c992882f26056dfe48d35ce5733"` [INFO] running `"docker" "rm" "-f" "df93ceade009e3ecf0bd16b03c94ea413e8f7c992882f26056dfe48d35ce5733"` [INFO] [stdout] df93ceade009e3ecf0bd16b03c94ea413e8f7c992882f26056dfe48d35ce5733 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"` [INFO] [stdout] c414d43f9bcccc8d36c72dce6c7f5354d09cd0f909a8d3969eb37b1951c4b48a [INFO] running `"docker" "start" "-a" "c414d43f9bcccc8d36c72dce6c7f5354d09cd0f909a8d3969eb37b1951c4b48a"` [INFO] [stderr] Compiling neural-networks-practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: the item `slice` is imported redundantly [INFO] [stderr] --> src/main.rs:527:9 [INFO] [stderr] | [INFO] [stderr] 23 | use std::{io, fs, path, slice}; [INFO] [stderr] | ----- the item `slice` is already imported here [INFO] [stderr] ... [INFO] [stderr] 527 | use std::slice; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the item `slice` is imported redundantly [INFO] [stderr] --> src/main.rs:546:9 [INFO] [stderr] | [INFO] [stderr] 23 | use std::{io, fs, path, slice}; [INFO] [stderr] | ----- the item `slice` is already imported here [INFO] [stderr] ... [INFO] [stderr] 546 | use std::slice; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:215:21 [INFO] [stderr] | [INFO] [stderr] 215 | let (l, mut r) = self.layers.split_at_mut(i); [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: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:226:17 [INFO] [stderr] | [INFO] [stderr] 226 | let mut output_layer = self.layers.last_mut().unwrap(); [INFO] [stderr] | ----^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:238:21 [INFO] [stderr] | [INFO] [stderr] 238 | let mut this_layer = match iter.next() { [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:259:24 [INFO] [stderr] | [INFO] [stderr] 259 | while let Some(mut previous_layer) = next { [INFO] [stderr] | ----^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:260:17 [INFO] [stderr] | [INFO] [stderr] 260 | let mut this_layer = match iter.next() { [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.11s [INFO] running `"docker" "inspect" "c414d43f9bcccc8d36c72dce6c7f5354d09cd0f909a8d3969eb37b1951c4b48a"` [INFO] running `"docker" "rm" "-f" "c414d43f9bcccc8d36c72dce6c7f5354d09cd0f909a8d3969eb37b1951c4b48a"` [INFO] [stdout] c414d43f9bcccc8d36c72dce6c7f5354d09cd0f909a8d3969eb37b1951c4b48a [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"` [INFO] [stdout] ac42b051c88df4d3851addf1bc380c2579227da8bac93d8b5b6578c1c9d5f483 [INFO] running `"docker" "start" "-a" "ac42b051c88df4d3851addf1bc380c2579227da8bac93d8b5b6578c1c9d5f483"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.21s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/neural_networks_practice-af6ad7c34bec23da [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "ac42b051c88df4d3851addf1bc380c2579227da8bac93d8b5b6578c1c9d5f483"` [INFO] running `"docker" "rm" "-f" "ac42b051c88df4d3851addf1bc380c2579227da8bac93d8b5b6578c1c9d5f483"` [INFO] [stdout] ac42b051c88df4d3851addf1bc380c2579227da8bac93d8b5b6578c1c9d5f483