[INFO] updating cached repository https://github.com/emilio/nn [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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 master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femilio%2Fnn" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/emilio/nn on toolchain 28742a1146f10a4f09369baad027a464acb7a766 [INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "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 /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/emilio/nn already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b672e33f2a1e634f42aab3890fb751146975c30d1ac3ed2a53643beb3eaa6849 [INFO] running `"docker" "start" "-a" "b672e33f2a1e634f42aab3890fb751146975c30d1ac3ed2a53643beb3eaa6849"` [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 rand v0.3.15 [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] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 34.83s [INFO] running `"docker" "inspect" "b672e33f2a1e634f42aab3890fb751146975c30d1ac3ed2a53643beb3eaa6849"` [INFO] running `"docker" "rm" "-f" "b672e33f2a1e634f42aab3890fb751146975c30d1ac3ed2a53643beb3eaa6849"` [INFO] [stdout] b672e33f2a1e634f42aab3890fb751146975c30d1ac3ed2a53643beb3eaa6849 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 676bbdcf9c2765c33c14204f5fa22d860077e1fd106bd8d64c22bddb764c00fa [INFO] running `"docker" "start" "-a" "676bbdcf9c2765c33c14204f5fa22d860077e1fd106bd8d64c22bddb764c00fa"` [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] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.11s [INFO] running `"docker" "inspect" "676bbdcf9c2765c33c14204f5fa22d860077e1fd106bd8d64c22bddb764c00fa"` [INFO] running `"docker" "rm" "-f" "676bbdcf9c2765c33c14204f5fa22d860077e1fd106bd8d64c22bddb764c00fa"` [INFO] [stdout] 676bbdcf9c2765c33c14204f5fa22d860077e1fd106bd8d64c22bddb764c00fa [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] c43cfa446984466a57e9f1e652f9e714270350b04f37ddada0a6573369a5c10f [INFO] running `"docker" "start" "-a" "c43cfa446984466a57e9f1e652f9e714270350b04f37ddada0a6573369a5c10f"` [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] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.14s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/neural_networks_practice-448cd21f6552e569 [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" "c43cfa446984466a57e9f1e652f9e714270350b04f37ddada0a6573369a5c10f"` [INFO] running `"docker" "rm" "-f" "c43cfa446984466a57e9f1e652f9e714270350b04f37ddada0a6573369a5c10f"` [INFO] [stdout] c43cfa446984466a57e9f1e652f9e714270350b04f37ddada0a6573369a5c10f