[INFO] cloning repository https://github.com/Janko-dev/neural_network
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Janko-dev/neural_network" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Fneural_network", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Fneural_network'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e71d7fbf0640819119b0c70d0f170b9bd2ce4c78
[INFO] checking Janko-dev/neural_network against try#1f5783cbeb5da8b38566d718631d016891e9c912 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Fneural_network" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Janko-dev/neural_network on toolchain 1f5783cbeb5da8b38566d718631d016891e9c912
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Janko-dev/neural_network
[INFO] finished tweaking git repo https://github.com/Janko-dev/neural_network
[INFO] tweaked toml for git repo https://github.com/Janko-dev/neural_network written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Janko-dev/neural_network already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking Janko-dev/neural_network against try#1f5783cbeb5da8b38566d718631d016891e9c912 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Fneural_network" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Janko-dev/neural_network on toolchain 1f5783cbeb5da8b38566d718631d016891e9c912
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Janko-dev/neural_network
[INFO] finished tweaking git repo https://github.com/Janko-dev/neural_network
[INFO] tweaked toml for git repo https://github.com/Janko-dev/neural_network written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Janko-dev/neural_network already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plotlib v0.5.1
[INFO] [stderr]   Downloaded svg v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5af4eb2a3ac5cd0e03bd8531e6032e3d8721aa2598e5fb8b5e8cbf3a5614e024
[INFO] running `Command { std: "docker" "start" "-a" "5af4eb2a3ac5cd0e03bd8531e6032e3d8721aa2598e5fb8b5e8cbf3a5614e024", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5af4eb2a3ac5cd0e03bd8531e6032e3d8721aa2598e5fb8b5e8cbf3a5614e024", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5af4eb2a3ac5cd0e03bd8531e6032e3d8721aa2598e5fb8b5e8cbf3a5614e024", kill_on_drop: false }`
[INFO] [stdout] 5af4eb2a3ac5cd0e03bd8531e6032e3d8721aa2598e5fb8b5e8cbf3a5614e024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+1f5783cbeb5da8b38566d718631d016891e9c912" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfae8803a9f65e4887c3615d6d1c4b5142860d05a0cc91986a02dd8d3adc7137
[INFO] running `Command { std: "docker" "start" "-a" "dfae8803a9f65e4887c3615d6d1c4b5142860d05a0cc91986a02dd8d3adc7137", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde v1.0.186
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking svg v0.7.2
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking object v0.32.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking csv v1.2.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking plotlib v0.5.1
[INFO] [stderr]     Checking neural_network v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IndexMut` and `Index`
[INFO] [stdout]  --> src/dataframe.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{error::Error, ops::{IndexMut, Index}};
[INFO] [stdout]   |                               ^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IndexMut` and `Index`
[INFO] [stdout]  --> src/dataframe.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{error::Error, ops::{IndexMut, Index}};
[INFO] [stdout]   |                               ^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mat`
[INFO] [stdout]    --> src/autodiff.rs:235:37
[INFO] [stdout]     |
[INFO] [stdout] 235 |                     Operator::Unary(mat, UnaryOpType::Sum) => {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_mat`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mat`
[INFO] [stdout]    --> src/autodiff.rs:235:37
[INFO] [stdout]     |
[INFO] [stdout] 235 |                     Operator::Unary(mat, UnaryOpType::Sum) => {
[INFO] [stdout]     |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_mat`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encoding`
[INFO] [stdout]   --> src/dataframe.rs:61:30
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn encode(&mut self, encoding: EncodingScheme) {
[INFO] [stdout]    |                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `headers`, `data`, and `shape` are never read
[INFO] [stdout]   --> src/dataframe.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct DataFrame {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 12 |     headers: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 13 |     data: Vec<DFType>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     shape: (usize, usize)
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DataFrame` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `encoding`
[INFO] [stdout]   --> src/dataframe.rs:61:30
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn encode(&mut self, encoding: EncodingScheme) {
[INFO] [stdout]    |                              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_encoding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Matrix`
[INFO] [stdout]  --> src/main.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use neural_network::{NN, Matrix};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |       return Ok(());
[INFO] [stdout]    |       ------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 40 | /     let x_train = vec![
[INFO] [stdout] 41 | |         vec![0., 0.],
[INFO] [stdout] 42 | |         vec![0., 1.],
[INFO] [stdout] 43 | |         vec![1., 0.],
[INFO] [stdout] 44 | |         vec![1., 1.],
[INFO] [stdout] 45 | |     ];
[INFO] [stdout]    | |______^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Matrix`
[INFO] [stdout]  --> src/main.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use neural_network::{NN, Matrix};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |       return Ok(());
[INFO] [stdout]    |       ------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 40 | /     let x_train = vec![
[INFO] [stdout] 41 | |         vec![0., 0.],
[INFO] [stdout] 42 | |         vec![0., 1.],
[INFO] [stdout] 43 | |         vec![1., 0.],
[INFO] [stdout] 44 | |         vec![1., 1.],
[INFO] [stdout] 45 | |     ];
[INFO] [stdout]    | |______^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.15s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.7.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "dfae8803a9f65e4887c3615d6d1c4b5142860d05a0cc91986a02dd8d3adc7137", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfae8803a9f65e4887c3615d6d1c4b5142860d05a0cc91986a02dd8d3adc7137", kill_on_drop: false }`
[INFO] [stdout] dfae8803a9f65e4887c3615d6d1c4b5142860d05a0cc91986a02dd8d3adc7137
