[INFO] fetching crate DeepIron 0.1.4...
[INFO] checking DeepIron-0.1.4 against master#3139ff09e9d07f7700f8d15ed25a231e29c43627 for pr-121848-3
[INFO] extracting crate DeepIron 0.1.4 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate DeepIron 0.1.4 on toolchain 3139ff09e9d07f7700f8d15ed25a231e29c43627
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate DeepIron 0.1.4
[INFO] finished tweaking crates.io crate DeepIron 0.1.4
[INFO] tweaked toml for crates.io crate DeepIron 0.1.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 148 packages to latest compatible versions
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 638d50aad3406398c1bc009801b9b7b700d7f2acceea3ef393e64379533e490d
[INFO] running `Command { std: "docker" "start" "-a" "638d50aad3406398c1bc009801b9b7b700d7f2acceea3ef393e64379533e490d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "638d50aad3406398c1bc009801b9b7b700d7f2acceea3ef393e64379533e490d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "638d50aad3406398c1bc009801b9b7b700d7f2acceea3ef393e64379533e490d", kill_on_drop: false }`
[INFO] [stdout] 638d50aad3406398c1bc009801b9b7b700d7f2acceea3ef393e64379533e490d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 370dabfdb8b09c7bf90f3144bc54ec01a92ad74e6d21f6021828c13a67cf35a7
[INFO] running `Command { std: "docker" "start" "-a" "370dabfdb8b09c7bf90f3144bc54ec01a92ad74e6d21f6021828c13a67cf35a7", kill_on_drop: false }`
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[INFO] [stderr]     Checking DeepIron v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `LossFunctionType` and `LossFunction`
[INFO] [stdout]   --> src/layers.rs:13:40
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use crate::model::loss_functions::{LossFunction, LossFunctionType};
[INFO] [stdout]    |                                        ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ActivationFunction`
[INFO] [stdout]  --> src/multilayer_perceptron.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::model::activation_functions::{ActivationFunction, ActivationFunctionType};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `KernelFunctionType` and `KernelFunction`
[INFO] [stdout]  --> src/multilayer_perceptron.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::model::kernel_functions::{KernelFunction, KernelFunctionType};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ActivationFunctionType` and `ActivationFunction`
[INFO] [stdout]  --> src/k_means.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::model::activation_functions::{ActivationFunction, ActivationFunctionType};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LossFunctionType` and `LossFunction`
[INFO] [stdout]  --> src/k_means.rs:5:36
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::model::loss_functions::{LossFunction, LossFunctionType};
[INFO] [stdout]   |                                    ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LossFunctionType` and `LossFunction`
[INFO] [stdout]   --> src/layers.rs:13:40
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use crate::model::loss_functions::{LossFunction, LossFunctionType};
[INFO] [stdout]    |                                        ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ActivationFunction`
[INFO] [stdout]  --> src/multilayer_perceptron.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::model::activation_functions::{ActivationFunction, ActivationFunctionType};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `KernelFunctionType` and `KernelFunction`
[INFO] [stdout]  --> src/multilayer_perceptron.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::model::kernel_functions::{KernelFunction, KernelFunctionType};
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ActivationFunctionType` and `ActivationFunction`
[INFO] [stdout]  --> src/k_means.rs:4:42
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::model::activation_functions::{ActivationFunction, ActivationFunctionType};
[INFO] [stdout]   |                                          ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `LossFunctionType` and `LossFunction`
[INFO] [stdout]  --> src/k_means.rs:5:36
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::model::loss_functions::{LossFunction, LossFunctionType};
[INFO] [stdout]   |                                    ^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grad_input`
[INFO] [stdout]    --> src/layers.rs:176:17
[INFO] [stdout]     |
[INFO] [stdout] 176 |             let grad_input: Series = &inputs * &grad_outputs;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_grad_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `old_centroids` is never read
[INFO] [stdout]    --> src/k_means.rs:323:17
[INFO] [stdout]     |
[INFO] [stdout] 323 |         let mut old_centroids: DataFrame = DataFrame::new::<Series>(vec![]).unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_centroids` is never read
[INFO] [stdout]    --> src/k_means.rs:324:17
[INFO] [stdout]     |
[INFO] [stdout] 324 |         let mut new_centroids: DataFrame = DataFrame::new::<Series>(vec![]).unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `DeepIron` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `deep_iron`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grad_input`
[INFO] [stdout]    --> src/layers.rs:176:17
[INFO] [stdout]     |
[INFO] [stdout] 176 |             let grad_input: Series = &inputs * &grad_outputs;
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_grad_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `old_centroids` is never read
[INFO] [stdout]    --> src/k_means.rs:323:17
[INFO] [stdout]     |
[INFO] [stdout] 323 |         let mut old_centroids: DataFrame = DataFrame::new::<Series>(vec![]).unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_centroids` is never read
[INFO] [stdout]    --> src/k_means.rs:324:17
[INFO] [stdout]     |
[INFO] [stdout] 324 |         let mut new_centroids: DataFrame = DataFrame::new::<Series>(vec![]).unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.21s
[INFO] running `Command { std: "docker" "inspect" "370dabfdb8b09c7bf90f3144bc54ec01a92ad74e6d21f6021828c13a67cf35a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "370dabfdb8b09c7bf90f3144bc54ec01a92ad74e6d21f6021828c13a67cf35a7", kill_on_drop: false }`
[INFO] [stdout] 370dabfdb8b09c7bf90f3144bc54ec01a92ad74e6d21f6021828c13a67cf35a7
