[INFO] updating cached repository https://github.com/timboe/rust_perceptron
[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] f65e03d5250d4be622afffecb756a973efaf7bf2
[INFO] testing timboe/rust_perceptron against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimboe%2Frust_perceptron" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timboe/rust_perceptron 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/timboe/rust_perceptron
[INFO] finished tweaking git repo https://github.com/timboe/rust_perceptron
[INFO] tweaked toml for git repo https://github.com/timboe/rust_perceptron written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/timboe/rust_perceptron 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 4643db8400e8b5f3aee415c16cd0ff84ad9c3e8bc0df296cf67805d395561534
[INFO] running `"docker" "start" "-a" "4643db8400e8b5f3aee415c16cd0ff84ad9c3e8bc0df296cf67805d395561534"`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling mnist v0.4.0
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling rand_xorshift v0.1.0
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling time v0.1.41
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling rulinalg v0.4.2
[INFO] [stderr]    Compiling mindtree_utils v0.4.0
[INFO] [stderr]    Compiling rust_perceptron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `cost`
[INFO] [stderr]    --> src/main.rs:243:13
[INFO] [stderr]     |
[INFO] [stderr] 243 |         let cost = network.apply(&mut response, answers.get(label).unwrap());
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_cost`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vertex`
[INFO] [stderr]    --> src/main.rs:128:17
[INFO] [stderr]     |
[INFO] [stderr] 128 |     for (index, vertex) in self.layers.iter().enumerate() {
[INFO] [stderr]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_vertex`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:150:9
[INFO] [stderr]     |
[INFO] [stderr] 150 |     let mut iter = response.get_output_layer().iter().zip( answer.iter() );
[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: method is never used: `as_ref`
[INFO] [stderr]    --> src/main.rs:170:3
[INFO] [stderr]     |
[INFO] [stderr] 170 |   pub fn as_ref(&self) -> &Vector<f32> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_ref`
[INFO] [stderr]    --> src/main.rs:185:3
[INFO] [stderr]     |
[INFO] [stderr] 185 |   pub fn as_ref(&self) -> &Matrix<f32> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.89s
[INFO] running `"docker" "inspect" "4643db8400e8b5f3aee415c16cd0ff84ad9c3e8bc0df296cf67805d395561534"`
[INFO] running `"docker" "rm" "-f" "4643db8400e8b5f3aee415c16cd0ff84ad9c3e8bc0df296cf67805d395561534"`
[INFO] [stdout] 4643db8400e8b5f3aee415c16cd0ff84ad9c3e8bc0df296cf67805d395561534
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 1dc669872a4eb303d810da460556b97a43177a7faeeaa73e9996f0ed4bcc1a0a
[INFO] running `"docker" "start" "-a" "1dc669872a4eb303d810da460556b97a43177a7faeeaa73e9996f0ed4bcc1a0a"`
[INFO] [stderr]    Compiling rust_perceptron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `cost`
[INFO] [stderr]    --> src/main.rs:243:13
[INFO] [stderr]     |
[INFO] [stderr] 243 |         let cost = network.apply(&mut response, answers.get(label).unwrap());
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_cost`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vertex`
[INFO] [stderr]    --> src/main.rs:128:17
[INFO] [stderr]     |
[INFO] [stderr] 128 |     for (index, vertex) in self.layers.iter().enumerate() {
[INFO] [stderr]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_vertex`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:150:9
[INFO] [stderr]     |
[INFO] [stderr] 150 |     let mut iter = response.get_output_layer().iter().zip( answer.iter() );
[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: method is never used: `as_ref`
[INFO] [stderr]    --> src/main.rs:170:3
[INFO] [stderr]     |
[INFO] [stderr] 170 |   pub fn as_ref(&self) -> &Vector<f32> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_ref`
[INFO] [stderr]    --> src/main.rs:185:3
[INFO] [stderr]     |
[INFO] [stderr] 185 |   pub fn as_ref(&self) -> &Matrix<f32> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "1dc669872a4eb303d810da460556b97a43177a7faeeaa73e9996f0ed4bcc1a0a"`
[INFO] running `"docker" "rm" "-f" "1dc669872a4eb303d810da460556b97a43177a7faeeaa73e9996f0ed4bcc1a0a"`
[INFO] [stdout] 1dc669872a4eb303d810da460556b97a43177a7faeeaa73e9996f0ed4bcc1a0a
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 1733ff368ca344c4f011fb4d79922031619b8b8d0b888dc604cf7c605f10515d
[INFO] running `"docker" "start" "-a" "1733ff368ca344c4f011fb4d79922031619b8b8d0b888dc604cf7c605f10515d"`
[INFO] [stderr] warning: unused variable: `cost`
[INFO] [stderr]    --> src/main.rs:243:13
[INFO] [stderr]     |
[INFO] [stderr] 243 |         let cost = network.apply(&mut response, answers.get(label).unwrap());
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_cost`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vertex`
[INFO] [stderr]    --> src/main.rs:128:17
[INFO] [stderr]     |
[INFO] [stderr] 128 |     for (index, vertex) in self.layers.iter().enumerate() {
[INFO] [stderr]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_vertex`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:150:9
[INFO] [stderr]     |
[INFO] [stderr] 150 |     let mut iter = response.get_output_layer().iter().zip( answer.iter() );
[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: method is never used: `as_ref`
[INFO] [stderr]    --> src/main.rs:170:3
[INFO] [stderr]     |
[INFO] [stderr] 170 |   pub fn as_ref(&self) -> &Vector<f32> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_ref`
[INFO] [stderr]    --> src/main.rs:185:3
[INFO] [stderr]     |
[INFO] [stderr] 185 |   pub fn as_ref(&self) -> &Matrix<f32> {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_perceptron-cee766f21ae89662
[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" "1733ff368ca344c4f011fb4d79922031619b8b8d0b888dc604cf7c605f10515d"`
[INFO] running `"docker" "rm" "-f" "1733ff368ca344c4f011fb4d79922031619b8b8d0b888dc604cf7c605f10515d"`
[INFO] [stdout] 1733ff368ca344c4f011fb4d79922031619b8b8d0b888dc604cf7c605f10515d