[INFO] cloning repository https://github.com/baxtersa/decepticon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/baxtersa/decepticon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaxtersa%2Fdecepticon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaxtersa%2Fdecepticon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fd68f012d63ead8cfc6398291f0770db933c5600
[INFO] checking baxtersa/decepticon against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbaxtersa%2Fdecepticon" "/workspace/builds/worker-68/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-68/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/baxtersa/decepticon 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/baxtersa/decepticon
[INFO] finished tweaking git repo https://github.com/baxtersa/decepticon
[INFO] tweaked toml for git repo https://github.com/baxtersa/decepticon written to /workspace/builds/worker-68/source/Cargo.toml
[INFO] crate git repo https://github.com/baxtersa/decepticon 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-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] 5d75297d91e2daf3a349f79ce4fcc7d9d7747b9cf8f093e5bdf35da4204df2c4
[INFO] running `Command { std: "docker" "start" "-a" "5d75297d91e2daf3a349f79ce4fcc7d9d7747b9cf8f093e5bdf35da4204df2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d75297d91e2daf3a349f79ce4fcc7d9d7747b9cf8f093e5bdf35da4204df2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d75297d91e2daf3a349f79ce4fcc7d9d7747b9cf8f093e5bdf35da4204df2c4", kill_on_drop: false }`
[INFO] [stdout] 5d75297d91e2daf3a349f79ce4fcc7d9d7747b9cf8f093e5bdf35da4204df2c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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] 1ac7a4f1d632307f3d9d89a62ddc83c003329db0a305e7c70db8c83ab06bbef9
[INFO] running `Command { std: "docker" "start" "-a" "1ac7a4f1d632307f3d9d89a62ddc83c003329db0a305e7c70db8c83ab06bbef9", kill_on_drop: false }`
[INFO] [stderr]     Checking nn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `epoch`
[INFO] [stdout]    --> src/nn/network.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |         for epoch in 0..epochs {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_epoch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mse`
[INFO] [stdout]   --> src/nn/math.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn mse(expecteds: &[f64], actuals: &[f64]) -> f64 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `LEARN_RATE`
[INFO] [stdout]   --> src/nn/network.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     const LEARN_RATE: f64 = 0.1;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dLs` should have a snake case name
[INFO] [stdout]   --> src/nn/network.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let dLs: Vec<_> = ypred
[INFO] [stdout]    |             ^^^ help: convert the identifier to snake case: `d_ls`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dL` should have a snake case name
[INFO] [stdout]   --> src/nn/network.rs:72:21
[INFO] [stdout]    |
[INFO] [stdout] 72 |             .map(|((dL, doutput), output)| {
[INFO] [stdout]    |                     ^^ help: convert the identifier to snake case: `d_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `epoch`
[INFO] [stdout]    --> src/nn/network.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |         for epoch in 0..epochs {
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_epoch`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated constant is never used: `LEARN_RATE`
[INFO] [stdout]   --> src/nn/network.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     const LEARN_RATE: f64 = 0.1;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dLs` should have a snake case name
[INFO] [stdout]   --> src/nn/network.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let dLs: Vec<_> = ypred
[INFO] [stdout]    |             ^^^ help: convert the identifier to snake case: `d_ls`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `dL` should have a snake case name
[INFO] [stdout]   --> src/nn/network.rs:72:21
[INFO] [stdout]    |
[INFO] [stdout] 72 |             .map(|((dL, doutput), output)| {
[INFO] [stdout]    |                     ^^ help: convert the identifier to snake case: `d_l`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "1ac7a4f1d632307f3d9d89a62ddc83c003329db0a305e7c70db8c83ab06bbef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ac7a4f1d632307f3d9d89a62ddc83c003329db0a305e7c70db8c83ab06bbef9", kill_on_drop: false }`
[INFO] [stdout] 1ac7a4f1d632307f3d9d89a62ddc83c003329db0a305e7c70db8c83ab06bbef9