[INFO] updating cached repository https://github.com/connorcl/rust-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] 5a82b48e87f0b43018671d601407a52e0a52f6fe
[INFO] testing connorcl/rust-nn against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconnorcl%2Frust-nn" "/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/connorcl/rust-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/connorcl/rust-nn
[INFO] finished tweaking git repo https://github.com/connorcl/rust-nn
[INFO] tweaked toml for git repo https://github.com/connorcl/rust-nn written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/connorcl/rust-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-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] f5e28ce88916b27ae5041a96391e38fbd6d63aee35f91163f3aff1bed5fc1ebf
[INFO] running `"docker" "start" "-a" "f5e28ce88916b27ae5041a96391e38fbd6d63aee35f91163f3aff1bed5fc1ebf"`
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling neural_net v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.47s
[INFO] running `"docker" "inspect" "f5e28ce88916b27ae5041a96391e38fbd6d63aee35f91163f3aff1bed5fc1ebf"`
[INFO] running `"docker" "rm" "-f" "f5e28ce88916b27ae5041a96391e38fbd6d63aee35f91163f3aff1bed5fc1ebf"`
[INFO] [stdout] f5e28ce88916b27ae5041a96391e38fbd6d63aee35f91163f3aff1bed5fc1ebf
[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] daabf4f66acce9085ce6031fbee906b49387b706f92f6825724b624cf38dc5b4
[INFO] running `"docker" "start" "-a" "daabf4f66acce9085ce6031fbee906b49387b706f92f6825724b624cf38dc5b4"`
[INFO] [stderr]    Compiling neural_net v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/dataset.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |         for i in 0..2 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/dataset.rs:142:17
[INFO] [stderr]     |
[INFO] [stderr] 142 |             for m in dataset.iter() {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.91s
[INFO] running `"docker" "inspect" "daabf4f66acce9085ce6031fbee906b49387b706f92f6825724b624cf38dc5b4"`
[INFO] running `"docker" "rm" "-f" "daabf4f66acce9085ce6031fbee906b49387b706f92f6825724b624cf38dc5b4"`
[INFO] [stdout] daabf4f66acce9085ce6031fbee906b49387b706f92f6825724b624cf38dc5b4
[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] 61e50f845e940cd5be931d5c7bd6658862da947451f0054dbe2c6b14873dbc33
[INFO] running `"docker" "start" "-a" "61e50f845e940cd5be931d5c7bd6658862da947451f0054dbe2c6b14873dbc33"`
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/dataset.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |         for i in 0..2 {
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]    --> src/dataset.rs:142:17
[INFO] [stderr]     |
[INFO] [stderr] 142 |             for m in dataset.iter() {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/neural_net-ef87dd12ec716b7b
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test linear_algebra::tests::create_from_vector ... ok
[INFO] [stdout] test linear_algebra::tests::coord_index_conversion ... ok
[INFO] [stdout] test layers::tests::linear_forward ... ok
[INFO] [stdout] test layers::tests::linear_backward ... ok
[INFO] [stdout] test linear_algebra::tests::element_access ... ok
[INFO] [stdout] test linear_algebra::tests::element_modification ... ok
[INFO] [stdout] test linear_algebra::tests::gradient_descent ... ok
[INFO] [stdout] test linear_algebra::tests::initial_data_len ... ok
[INFO] [stdout] test linear_algebra::tests::initial_cols ... ok
[INFO] [stdout] test linear_algebra::tests::elementwise_addition ... ok
[INFO] [stdout] test linear_algebra::tests::initialize_gradients ... ok
[INFO] [stdout] test linear_algebra::tests::initial_rows ... ok
[INFO] [stdout] test linear_algebra::tests::matrix_multiply ... ok
[INFO] [stdout] test linear_algebra::tests::matrix_transposition ... ok
[INFO] [stdout] test dataset::tests::data_loading ... ok
[INFO] [stdout] test dataset::tests::dataset_iteration ... ok
[INFO] [stdout] test linear_algebra::tests::create_from_invalid_vector ... ok
[INFO] [stdout] test linear_algebra::tests::matrix_multiply_wrong_size ... ok
[INFO] [stdout] test linear_algebra::tests::out_of_bounds_access ... ok
[INFO] [stdout] test linear_algebra::tests::elementwise_add_wrong_size ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/neural_net-aed678fc2847d949
[INFO] [stderr]    Doc-tests neural_net
[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] [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" "61e50f845e940cd5be931d5c7bd6658862da947451f0054dbe2c6b14873dbc33"`
[INFO] running `"docker" "rm" "-f" "61e50f845e940cd5be931d5c7bd6658862da947451f0054dbe2c6b14873dbc33"`
[INFO] [stdout] 61e50f845e940cd5be931d5c7bd6658862da947451f0054dbe2c6b14873dbc33