[INFO] cloning repository https://github.com/emilio/nn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emilio/nn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femilio%2Fnn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femilio%2Fnn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e8cda885b450db2983bd4b503ff00a19cba5dce0 [INFO] checking emilio/nn against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femilio%2Fnn" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/emilio/nn on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-10/source/Cargo.toml [INFO] crate git repo https://github.com/emilio/nn already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 99ab553ee80e3e0ce27d4457e1147be072a2ddab22f55dd6e122e14af11fa501 [INFO] running `Command { std: "docker" "start" "-a" "99ab553ee80e3e0ce27d4457e1147be072a2ddab22f55dd6e122e14af11fa501", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "99ab553ee80e3e0ce27d4457e1147be072a2ddab22f55dd6e122e14af11fa501", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99ab553ee80e3e0ce27d4457e1147be072a2ddab22f55dd6e122e14af11fa501", kill_on_drop: false }` [INFO] [stdout] 99ab553ee80e3e0ce27d4457e1147be072a2ddab22f55dd6e122e14af11fa501 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fc6078903cfd7e8767b60a3625ed820a2207fa8114a716367cc60d626cc09165 [INFO] running `Command { std: "docker" "start" "-a" "fc6078903cfd7e8767b60a3625ed820a2207fa8114a716367cc60d626cc09165", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling gcc v0.3.49 [INFO] [stderr] Checking term_size v0.3.0 [INFO] [stderr] Checking atty v0.2.2 [INFO] [stderr] Checking rand v0.3.15 [INFO] [stderr] Checking clap v2.24.2 [INFO] [stderr] Compiling cmake v0.1.24 [INFO] [stderr] Compiling neural-networks-practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `slice` is imported redundantly [INFO] [stdout] --> src/main.rs:527:9 [INFO] [stdout] | [INFO] [stdout] 23 | use std::{io, fs, path, slice}; [INFO] [stdout] | ----- the item `slice` is already imported here [INFO] [stdout] ... [INFO] [stdout] 527 | use std::slice; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `slice` is imported redundantly [INFO] [stdout] --> src/main.rs:546:9 [INFO] [stdout] | [INFO] [stdout] 23 | use std::{io, fs, path, slice}; [INFO] [stdout] | ----- the item `slice` is already imported here [INFO] [stdout] ... [INFO] [stdout] 546 | use std::slice; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `slice` is imported redundantly [INFO] [stdout] --> src/main.rs:527:9 [INFO] [stdout] | [INFO] [stdout] 23 | use std::{io, fs, path, slice}; [INFO] [stdout] | ----- the item `slice` is already imported here [INFO] [stdout] ... [INFO] [stdout] 527 | use std::slice; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `slice` is imported redundantly [INFO] [stdout] --> src/main.rs:546:9 [INFO] [stdout] | [INFO] [stdout] 23 | use std::{io, fs, path, slice}; [INFO] [stdout] | ----- the item `slice` is already imported here [INFO] [stdout] ... [INFO] [stdout] 546 | use std::slice; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:215:21 [INFO] [stdout] | [INFO] [stdout] 215 | let (l, mut r) = self.layers.split_at_mut(i); [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: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:226:17 [INFO] [stdout] | [INFO] [stdout] 226 | let mut output_layer = self.layers.last_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:238:21 [INFO] [stdout] | [INFO] [stdout] 238 | let mut this_layer = match iter.next() { [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:259:24 [INFO] [stdout] | [INFO] [stdout] 259 | while let Some(mut previous_layer) = next { [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:260:17 [INFO] [stdout] | [INFO] [stdout] 260 | let mut this_layer = match iter.next() { [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:215:21 [INFO] [stdout] | [INFO] [stdout] 215 | let (l, mut r) = self.layers.split_at_mut(i); [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: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:226:17 [INFO] [stdout] | [INFO] [stdout] 226 | let mut output_layer = self.layers.last_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:238:21 [INFO] [stdout] | [INFO] [stdout] 238 | let mut this_layer = match iter.next() { [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:259:24 [INFO] [stdout] | [INFO] [stdout] 259 | while let Some(mut previous_layer) = next { [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:260:17 [INFO] [stdout] | [INFO] [stdout] 260 | let mut this_layer = match iter.next() { [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.97s [INFO] running `Command { std: "docker" "inspect" "fc6078903cfd7e8767b60a3625ed820a2207fa8114a716367cc60d626cc09165", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc6078903cfd7e8767b60a3625ed820a2207fa8114a716367cc60d626cc09165", kill_on_drop: false }` [INFO] [stdout] fc6078903cfd7e8767b60a3625ed820a2207fa8114a716367cc60d626cc09165