[INFO] updating cached repository tuvistavie/rust-simple-nn
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tuvistavie/rust-simple-nn
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tuvistavie/rust-simple-nn" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/tuvistavie/rust-simple-nn"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/tuvistavie/rust-simple-nn'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tuvistavie/rust-simple-nn" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/tuvistavie/rust-simple-nn"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/tuvistavie/rust-simple-nn'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 45fb6576aab9a572d0bc0e416ba286983cfdd95b
[INFO] sha for GitHub repo tuvistavie/rust-simple-nn: 45fb6576aab9a572d0bc0e416ba286983cfdd95b
[INFO] validating manifest of tuvistavie/rust-simple-nn on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tuvistavie/rust-simple-nn on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tuvistavie/rust-simple-nn
[INFO] finished frobbing tuvistavie/rust-simple-nn
[INFO] frobbed toml for tuvistavie/rust-simple-nn written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/tuvistavie/rust-simple-nn/Cargo.toml
[INFO] started frobbing tuvistavie/rust-simple-nn
[INFO] finished frobbing tuvistavie/rust-simple-nn
[INFO] frobbed toml for tuvistavie/rust-simple-nn written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/tuvistavie/rust-simple-nn/Cargo.toml
[INFO] crate tuvistavie/rust-simple-nn already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tuvistavie/rust-simple-nn against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-1/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/tuvistavie/rust-simple-nn:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3b73c5848381d0dc192775761f3f592e2c1dcef4159641270e5673e6d58ead9e
[INFO] running `"docker" "start" "-a" "3b73c5848381d0dc192775761f3f592e2c1dcef4159641270e5673e6d58ead9e"`
[INFO] [stderr]     Checking simple_nn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network.rs:40:21
[INFO] [stderr]    |
[INFO] [stderr] 40 |     layers: Vec<Box<layers::Layer>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[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/nn/network.rs:44:20
[INFO] [stderr]    |
[INFO] [stderr] 44 |     formatter: Box<Formatter>
[INFO] [stderr]    |                    ^^^^^^^^^ help: use `dyn`: `dyn Formatter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network.rs:48:32
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn new(layers: Vec<Box<layers::Layer>>, objective: Obj,
[INFO] [stderr]    |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network.rs:49:65
[INFO] [stderr]    |
[INFO] [stderr] 49 |                optimizer: Opt, output: Box<Out>, formatter: Box<Formatter>) -> Network<Out, Obj, Opt> {
[INFO] [stderr]    |                                                                 ^^^^^^^^^ help: use `dyn`: `dyn Formatter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network.rs:63:51
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn get_layer(&self, index: usize) -> &Box<layers::Layer> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network.rs:67:63
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn get_mut_layer(&mut self, index: usize) -> &mut Box<layers::Layer> {
[INFO] [stderr]    |                                                               ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/nn/network_builder.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 |     layers: Vec<Box<layers::Layer>>
[INFO] [stderr]   |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network_builder.rs:16:37
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn add(mut self, layer: Box<layers::Layer>) -> NetworkBuilder {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network_builder.rs:27:21
[INFO] [stderr]    |
[INFO] [stderr] 27 |     layers: Vec<Box<layers::Layer>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network_builder.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |     layers: Vec<Box<layers::Layer>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network_builder.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 |     layers: Vec<Box<layers::Layer>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network_builder.rs:57:27
[INFO] [stderr]    |
[INFO] [stderr] 57 |     formatter: Option<Box<Formatter>>
[INFO] [stderr]    |                           ^^^^^^^^^ help: use `dyn`: `dyn Formatter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network_builder.rs:61:49
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn format_with(mut self, formatter: Box<Formatter>) -> NetworkBuilderWithOptimizer<Out, Obj, Opt> {
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn Formatter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/formatter.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub measures: Vec<Box<Measure>>,
[INFO] [stderr]    |                           ^^^^^^^ help: use `dyn`: `dyn Measure`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/formatter.rs:20:48
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn add_measure(&mut self, measure: Box<Measure>) {
[INFO] [stderr]    |                                                ^^^^^^^ help: use `dyn`: `dyn Measure`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network.rs:40:21
[INFO] [stderr]    |
[INFO] [stderr] 40 |     layers: Vec<Box<layers::Layer>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[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/nn/network.rs:44:20
[INFO] [stderr]    |
[INFO] [stderr] 44 |     formatter: Box<Formatter>
[INFO] [stderr]    |                    ^^^^^^^^^ help: use `dyn`: `dyn Formatter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network.rs:48:32
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn new(layers: Vec<Box<layers::Layer>>, objective: Obj,
[INFO] [stderr]    |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network.rs:49:65
[INFO] [stderr]    |
[INFO] [stderr] 49 |                optimizer: Opt, output: Box<Out>, formatter: Box<Formatter>) -> Network<Out, Obj, Opt> {
[INFO] [stderr]    |                                                                 ^^^^^^^^^ help: use `dyn`: `dyn Formatter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network.rs:63:51
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn get_layer(&self, index: usize) -> &Box<layers::Layer> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network.rs:67:63
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn get_mut_layer(&mut self, index: usize) -> &mut Box<layers::Layer> {
[INFO] [stderr]    |                                                               ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/nn/network_builder.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 |     layers: Vec<Box<layers::Layer>>
[INFO] [stderr]   |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network_builder.rs:16:37
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn add(mut self, layer: Box<layers::Layer>) -> NetworkBuilder {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network_builder.rs:27:21
[INFO] [stderr]    |
[INFO] [stderr] 27 |     layers: Vec<Box<layers::Layer>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network_builder.rs:38:21
[INFO] [stderr]    |
[INFO] [stderr] 38 |     layers: Vec<Box<layers::Layer>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network_builder.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 |     layers: Vec<Box<layers::Layer>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn layers::Layer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network_builder.rs:57:27
[INFO] [stderr]    |
[INFO] [stderr] 57 |     formatter: Option<Box<Formatter>>
[INFO] [stderr]    |                           ^^^^^^^^^ help: use `dyn`: `dyn Formatter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/network_builder.rs:61:49
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn format_with(mut self, formatter: Box<Formatter>) -> NetworkBuilderWithOptimizer<Out, Obj, Opt> {
[INFO] [stderr]    |                                                 ^^^^^^^^^ help: use `dyn`: `dyn Formatter`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/formatter.rs:11:27
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub measures: Vec<Box<Measure>>,
[INFO] [stderr]    |                           ^^^^^^^ help: use `dyn`: `dyn Measure`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nn/formatter.rs:20:48
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn add_measure(&mut self, measure: Box<Measure>) {
[INFO] [stderr]    |                                                ^^^^^^^ help: use `dyn`: `dyn Measure`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/nn/network.rs:126:17
[INFO] [stderr]     |
[INFO] [stderr] 126 |             let mut weights = self.get_mut_layer(index).get_mut_weights();
[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/nn/network.rs:126:17
[INFO] [stderr]     |
[INFO] [stderr] 126 |             let mut weights = self.get_mut_layer(index).get_mut_weights();
[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: unused arithmetic operation that must be used
[INFO] [stderr]   --> tests/linalg_matrix.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     &matrix + &other;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `"docker" "inspect" "3b73c5848381d0dc192775761f3f592e2c1dcef4159641270e5673e6d58ead9e"`
[INFO] running `"docker" "rm" "-f" "3b73c5848381d0dc192775761f3f592e2c1dcef4159641270e5673e6d58ead9e"`
[INFO] [stdout] 3b73c5848381d0dc192775761f3f592e2c1dcef4159641270e5673e6d58ead9e