[INFO] crate sarek 0.1.0 is already in cache
[INFO] extracting crate sarek 0.1.0 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/sarek/0.1.0
[INFO] extracting crate sarek 0.1.0 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/sarek/0.1.0
[INFO] validating manifest of sarek-0.1.0 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 sarek-0.1.0 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 sarek-0.1.0
[INFO] finished frobbing sarek-0.1.0
[INFO] frobbed toml for sarek-0.1.0 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/sarek/0.1.0/Cargo.toml
[INFO] started frobbing sarek-0.1.0
[INFO] finished frobbing sarek-0.1.0
[INFO] frobbed toml for sarek-0.1.0 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/sarek/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 sarek-0.1.0 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/sarek/0.1.0:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 31f4b293fc539409405f4a8b99c30df8b0c58fa9a47dd16a24fe585df77b8c50
[INFO] running `"docker" "start" "-a" "31f4b293fc539409405f4a8b99c30df8b0c58fa9a47dd16a24fe585df77b8c50"`
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.2
[INFO] [stderr]     Checking panic-control v0.1.4
[INFO] [stderr]    Compiling pyo3-derive-backend v0.5.4
[INFO] [stderr]    Compiling pyo3 v0.5.4
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking decorum v0.1.3
[INFO] [stderr]    Compiling proc-macro-hack v0.4.2
[INFO] [stderr]    Compiling mashup-impl v0.1.9
[INFO] [stderr]     Checking mashup v0.1.9
[INFO] [stderr]    Compiling pyo3cls v0.5.4
[INFO] [stderr]     Checking sarek v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/keras/async_runner.rs:38:27
[INFO] [stderr]    |
[INFO] [stderr] 38 |     deque: VecDeque< Box< CallOnce + Send > >,
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CallOnce + Send`
[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/backend/keras/async_runner.rs:108:28
[INFO] [stderr]     |
[INFO] [stderr] 108 |         let callback: Box< CallOnce + Send > = Box::new( Some( move || {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CallOnce + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/backend/keras/async_runner.rs:118:29
[INFO] [stderr]     |
[INFO] [stderr] 118 |         let callback: *mut (CallOnce + Send) = Box::into_raw( callback );
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CallOnce + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/backend/keras/async_runner.rs:120:29
[INFO] [stderr]     |
[INFO] [stderr] 120 |         let callback: *mut (CallOnce + Send + 'static) = unsafe { mem::transmute( callback ) };
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CallOnce + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/backend/keras/async_runner.rs:121:28
[INFO] [stderr]     |
[INFO] [stderr] 121 |         let callback: Box< CallOnce + Send + 'static > = unsafe { Box::from_raw( callback ) };
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CallOnce + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/keras/context.rs:35:39
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub struct ContextCreationError( Box< Error + Send > );
[INFO] [stderr]    |                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/keras/py_utils.rs:40:51
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub fn py_err( py: Python, error: PyErr ) -> Box< Error + Send > {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/backend/keras/trainer.rs:202:47
[INFO] [stderr]     |
[INFO] [stderr] 202 |     fn shuffle_with_rng( &mut self, rng: &mut RngCore ) {
[INFO] [stderr]     |                                               ^^^^^^^ help: use `dyn`: `dyn RngCore`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/keras/async_runner.rs:38:27
[INFO] [stderr]    |
[INFO] [stderr] 38 |     deque: VecDeque< Box< CallOnce + Send > >,
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CallOnce + Send`
[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/backend/keras/async_runner.rs:108:28
[INFO] [stderr]     |
[INFO] [stderr] 108 |         let callback: Box< CallOnce + Send > = Box::new( Some( move || {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CallOnce + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/backend/keras/async_runner.rs:118:29
[INFO] [stderr]     |
[INFO] [stderr] 118 |         let callback: *mut (CallOnce + Send) = Box::into_raw( callback );
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CallOnce + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/backend/keras/async_runner.rs:120:29
[INFO] [stderr]     |
[INFO] [stderr] 120 |         let callback: *mut (CallOnce + Send + 'static) = unsafe { mem::transmute( callback ) };
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CallOnce + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/backend/keras/async_runner.rs:121:28
[INFO] [stderr]     |
[INFO] [stderr] 121 |         let callback: Box< CallOnce + Send + 'static > = unsafe { Box::from_raw( callback ) };
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn CallOnce + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/keras/context.rs:35:39
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub struct ContextCreationError( Box< Error + Send > );
[INFO] [stderr]    |                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/keras/py_utils.rs:40:51
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub fn py_err( py: Python, error: PyErr ) -> Box< Error + Send > {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn Error + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/backend/keras/trainer.rs:202:47
[INFO] [stderr]     |
[INFO] [stderr] 202 |     fn shuffle_with_rng( &mut self, rng: &mut RngCore ) {
[INFO] [stderr]     |                                               ^^^^^^^ help: use `dyn`: `dyn RngCore`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `inputs`
[INFO] [stderr]    --> src/backend/keras/trainer.rs:142:30
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn test< S >( &self, inputs: &S ) -> f32 where S: DataSource {
[INFO] [stderr]     |                              ^^^^^^ help: consider prefixing with an underscore: `_inputs`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `inputs`
[INFO] [stderr]    --> src/backend/keras/trainer.rs:142:30
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn test< S >( &self, inputs: &S ) -> f32 where S: DataSource {
[INFO] [stderr]     |                              ^^^^^^ help: consider prefixing with an underscore: `_inputs`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CategoricalCrossEntropy`
[INFO] [stderr]   --> src/backend/keras/loss.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     CategoricalCrossEntropy
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CategoricalCrossEntropy`
[INFO] [stderr]   --> src/backend/keras/loss.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     CategoricalCrossEntropy
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: couldn't read examples/mnist/data/train-images-idx3-ubyte.gz: No such file or directory (os error 2)
[INFO] [stderr]   --> examples/mnist/data.rs:26:39
[INFO] [stderr]    |
[INFO] [stderr] 26 | static MNIST_TRAINING_IMAGES: &[u8] = include_bytes!( "data/train-images-idx3-ubyte.gz" );
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: couldn't read examples/mnist/data/train-labels-idx1-ubyte.gz: No such file or directory (os error 2)
[INFO] [stderr]   --> examples/mnist/data.rs:27:39
[INFO] [stderr]    |
[INFO] [stderr] 27 | static MNIST_TRAINING_LABELS: &[u8] = include_bytes!( "data/train-labels-idx1-ubyte.gz" );
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: couldn't read examples/mnist/data/t10k-images-idx3-ubyte.gz: No such file or directory (os error 2)
[INFO] [stderr]   --> examples/mnist/data.rs:28:35
[INFO] [stderr]    |
[INFO] [stderr] 28 | static MNIST_TEST_IMAGES: &[u8] = include_bytes!( "data/t10k-images-idx3-ubyte.gz" );
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: couldn't read examples/mnist/data/t10k-labels-idx1-ubyte.gz: No such file or directory (os error 2)
[INFO] [stderr]   --> examples/mnist/data.rs:29:35
[INFO] [stderr]    |
[INFO] [stderr] 29 | static MNIST_TEST_LABELS: &[u8] = include_bytes!( "data/t10k-labels-idx1-ubyte.gz" );
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `sarek`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "31f4b293fc539409405f4a8b99c30df8b0c58fa9a47dd16a24fe585df77b8c50"`
[INFO] running `"docker" "rm" "-f" "31f4b293fc539409405f4a8b99c30df8b0c58fa9a47dd16a24fe585df77b8c50"`
[INFO] [stdout] 31f4b293fc539409405f4a8b99c30df8b0c58fa9a47dd16a24fe585df77b8c50