[INFO] cloning repository xayon40-12/neural_network
[INFO] running `"git" "clone" "--bare" "git://github.com/xayon40-12/neural_network.git" "work/cache/sources/gh/xayon40-12/neural_network"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/xayon40-12/neural_network'...
[INFO] running `"git" "clone" "work/cache/sources/gh/xayon40-12/neural_network" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/xayon40-12/neural_network"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/xayon40-12/neural_network'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/xayon40-12/neural_network" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/xayon40-12/neural_network"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/xayon40-12/neural_network'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 29943b08d4841c2ac72b10a0e59f3805f72d9e0e
[INFO] sha for GitHub repo xayon40-12/neural_network: 29943b08d4841c2ac72b10a0e59f3805f72d9e0e
[INFO] validating manifest of xayon40-12/neural_network on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of xayon40-12/neural_network on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing xayon40-12/neural_network
[INFO] finished frobbing xayon40-12/neural_network
[INFO] frobbed toml for xayon40-12/neural_network written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/xayon40-12/neural_network/Cargo.toml
[INFO] started frobbing xayon40-12/neural_network
[INFO] finished frobbing xayon40-12/neural_network
[INFO] frobbed toml for xayon40-12/neural_network written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/xayon40-12/neural_network/Cargo.toml
[INFO] crate xayon40-12/neural_network already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking xayon40-12/neural_network against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-5/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/xayon40-12/neural_network:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ae981c960a640b59dbc249f5a6deec1adecd0dd826352d98f1061a621c8aa33e
[INFO] running `"docker" "start" "-a" "ae981c960a640b59dbc249f5a6deec1adecd0dd826352d98f1061a621c8aa33e"`
[INFO] [stderr]     Checking neural_network v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/neuron.rs:55:19
[INFO] [stderr]    |
[INFO] [stderr] 55 |     transfer: Box<Fn(f32) -> f32>
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32) -> f32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/neuron.rs:59:30
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn new(transfer: Box<Fn(f32)->f32>, ntype: NeuronType) -> Neuron<'a> {
[INFO] [stderr]    |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32)->f32`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `neuron::*`
[INFO] [stderr]  --> src/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use neuron::*;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/neuron.rs:55:19
[INFO] [stderr]    |
[INFO] [stderr] 55 |     transfer: Box<Fn(f32) -> f32>
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32) -> f32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/neuron.rs:59:30
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn new(transfer: Box<Fn(f32)->f32>, ntype: NeuronType) -> Neuron<'a> {
[INFO] [stderr]    |                              ^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f32)->f32`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `NeuralNet`
[INFO] [stderr]  --> src/neural_net.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct NeuralNet {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `n`
[INFO] [stderr]   --> src/neuron.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     n: &'a Neuron<'a>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `n`
[INFO] [stderr]   --> src/neuron.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     n: &'a Neuron<'a>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `w`
[INFO] [stderr]   --> src/neuron.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     w: &'a f32
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `linked_by`
[INFO] [stderr]   --> src/neuron.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     linked_by: Vec<BScinapse<'a>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `dist`
[INFO] [stderr]   --> src/neuron.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     dist: Option<u32>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `old_value`
[INFO] [stderr]   --> src/neuron.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     old_value: f32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `ntype`
[INFO] [stderr]   --> src/neuron.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     ntype: NeuronType,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `computed`
[INFO] [stderr]   --> src/neuron.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     computed: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `transfer`
[INFO] [stderr]   --> src/neuron.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     transfer: Box<Fn(f32) -> f32>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let mut n2 = Neuron::new(Box::new(threshold), NeuronType::Input);
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:17:13
[INFO] [stderr]    |
[INFO] [stderr] 17 |         let mut n3 = Neuron::new(Box::new(threshold), NeuronType::Input);
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let mut n4 = Neuron::new(Box::new(threshold), NeuronType::Input);
[INFO] [stderr]    |             ----^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `NeuralNet`
[INFO] [stderr]  --> src/neural_net.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct NeuralNet {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `n`
[INFO] [stderr]   --> src/neuron.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     n: &'a Neuron<'a>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `n`
[INFO] [stderr]   --> src/neuron.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     n: &'a Neuron<'a>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `w`
[INFO] [stderr]   --> src/neuron.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     w: &'a f32
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `linked_by`
[INFO] [stderr]   --> src/neuron.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 |     linked_by: Vec<BScinapse<'a>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `dist`
[INFO] [stderr]   --> src/neuron.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     dist: Option<u32>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `old_value`
[INFO] [stderr]   --> src/neuron.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     old_value: f32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `ntype`
[INFO] [stderr]   --> src/neuron.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     ntype: NeuronType,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `computed`
[INFO] [stderr]   --> src/neuron.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     computed: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `transfer`
[INFO] [stderr]   --> src/neuron.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     transfer: Box<Fn(f32) -> f32>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "ae981c960a640b59dbc249f5a6deec1adecd0dd826352d98f1061a621c8aa33e"`
[INFO] running `"docker" "rm" "-f" "ae981c960a640b59dbc249f5a6deec1adecd0dd826352d98f1061a621c8aa33e"`
[INFO] [stdout] ae981c960a640b59dbc249f5a6deec1adecd0dd826352d98f1061a621c8aa33e