[INFO] fetching crate artha 0.2.1...
[INFO] checking artha-0.2.1 against try#21cad1f647cfd05a566220f933edd88a53e50bcf for pr-129249-1
[INFO] extracting crate artha 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate artha 0.2.1
[INFO] finished tweaking crates.io crate artha 0.2.1
[INFO] tweaked toml for crates.io crate artha 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate artha 0.2.1 on toolchain 21cad1f647cfd05a566220f933edd88a53e50bcf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding ndarray v0.12.1 (available: v0.17.2)
[INFO] [stderr]       Adding ndarray-rand v0.9.0 (available: v0.16.0)
[INFO] [stderr]       Adding rand v0.6.5 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 16c1f1df8f54b6930fe85a3c5d8b25c731d820b239ba4cb0c690bfd9bae0e7b8
[INFO] running `Command { std: "docker" "start" "16c1f1df8f54b6930fe85a3c5d8b25c731d820b239ba4cb0c690bfd9bae0e7b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "16c1f1df8f54b6930fe85a3c5d8b25c731d820b239ba4cb0c690bfd9bae0e7b8" "/opt/rustwide/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16c1f1df8f54b6930fe85a3c5d8b25c731d820b239ba4cb0c690bfd9bae0e7b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "16c1f1df8f54b6930fe85a3c5d8b25c731d820b239ba4cb0c690bfd9bae0e7b8" "/opt/rustwide/cargo-home/bin/cargo" "+21cad1f647cfd05a566220f933edd88a53e50bcf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.1
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking either v1.16.0
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking pbr v1.1.1
[INFO] [stderr]     Checking ndarray-rand v0.9.0
[INFO] [stderr]     Checking artha v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `input_size`, `output_size`, and `hidden_sizes` are never read
[INFO] [stdout]   --> src/neural_net.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct NeuralNetwork {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 12 |     input_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     output_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 14 |     hidden_sizes: Vec<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NeuralNetwork` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_size`, `output_size`, and `hidden_sizes` are never read
[INFO] [stdout]   --> src/neural_net.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct NeuralNetwork {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 12 |     input_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 13 |     output_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 14 |     hidden_sizes: Vec<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NeuralNetwork` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.50s
[INFO] running `Command { std: "docker" "inspect" "16c1f1df8f54b6930fe85a3c5d8b25c731d820b239ba4cb0c690bfd9bae0e7b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16c1f1df8f54b6930fe85a3c5d8b25c731d820b239ba4cb0c690bfd9bae0e7b8", kill_on_drop: false }`
[INFO] [stdout] 16c1f1df8f54b6930fe85a3c5d8b25c731d820b239ba4cb0c690bfd9bae0e7b8
