[INFO] crate drug 0.0.2 is already in cache
[INFO] extracting crate drug 0.0.2 into work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/drug/0.0.2
[INFO] extracting crate drug 0.0.2 into work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/drug/0.0.2
[INFO] validating manifest of drug-0.0.2 on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of drug-0.0.2 on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing drug-0.0.2
[INFO] finished frobbing drug-0.0.2
[INFO] frobbed toml for drug-0.0.2 written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/drug/0.0.2/Cargo.toml
[INFO] started frobbing drug-0.0.2
[INFO] finished frobbing drug-0.0.2
[INFO] frobbed toml for drug-0.0.2 written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/reg/drug/0.0.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking drug-0.0.2 against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-4/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/reg/drug/0.0.2:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 387bea48d82255488df295ad6ef0e8fca1a5a86c9c1b46015cf47e92361df61f
[INFO] running `"docker" "start" "-a" "387bea48d82255488df295ad6ef0e8fca1a5a86c9c1b46015cf47e92361df61f"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ndarray v0.11.2
[INFO] [stderr]    Compiling debug_stub_derive v0.3.0
[INFO] [stderr]     Checking drug v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph.rs:36:25
[INFO] [stderr]    |
[INFO] [stderr] 36 | struct Initializer(Box<(Fn(&[usize]) -> ArrayD<f32>)>);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[usize]) -> ArrayD<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/graph.rs:73:34
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn new(initializer: Box<(Fn(&[usize]) -> ArrayD<f32>)>, optimizer: Optimizer) -> Self {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[usize]) -> ArrayD<f32>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/graph.rs:106:44
[INFO] [stderr]     |
[INFO] [stderr] 106 |     pub fn input(&mut self, it: Option<Box<Iterator<Item = ArrayD<f32>>>>) -> Idx {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ArrayD<f32>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/graph.rs:226:18
[INFO] [stderr]     |
[INFO] [stderr] 226 |         new: Box<Iterator<Item = ArrayD<f32>>>,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ArrayD<f32>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/mod.rs:56:24
[INFO] [stderr]    |
[INFO] [stderr] 56 |         it: Option<Box<Iterator<Item = ArrayD<f32>>>>,
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ArrayD<f32>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/mod.rs:87:24
[INFO] [stderr]    |
[INFO] [stderr] 87 |         operation: Box<Operation>,
[INFO] [stderr]    |                        ^^^^^^^^^ help: use `dyn`: `dyn Operation`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nodes/mod.rs:138:22
[INFO] [stderr]     |
[INFO] [stderr] 138 | impl Default for Box<Operation> {
[INFO] [stderr]     |                      ^^^^^^^^^ help: use `dyn`: `dyn Operation`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graph.rs:36:25
[INFO] [stderr]    |
[INFO] [stderr] 36 | struct Initializer(Box<(Fn(&[usize]) -> ArrayD<f32>)>);
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[usize]) -> ArrayD<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/graph.rs:73:34
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn new(initializer: Box<(Fn(&[usize]) -> ArrayD<f32>)>, optimizer: Optimizer) -> Self {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[usize]) -> ArrayD<f32>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/graph.rs:106:44
[INFO] [stderr]     |
[INFO] [stderr] 106 |     pub fn input(&mut self, it: Option<Box<Iterator<Item = ArrayD<f32>>>>) -> Idx {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ArrayD<f32>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/graph.rs:226:18
[INFO] [stderr]     |
[INFO] [stderr] 226 |         new: Box<Iterator<Item = ArrayD<f32>>>,
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ArrayD<f32>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/mod.rs:56:24
[INFO] [stderr]    |
[INFO] [stderr] 56 |         it: Option<Box<Iterator<Item = ArrayD<f32>>>>,
[INFO] [stderr]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ArrayD<f32>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nodes/mod.rs:87:24
[INFO] [stderr]    |
[INFO] [stderr] 87 |         operation: Box<Operation>,
[INFO] [stderr]    |                        ^^^^^^^^^ help: use `dyn`: `dyn Operation`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nodes/mod.rs:138:22
[INFO] [stderr]     |
[INFO] [stderr] 138 | impl Default for Box<Operation> {
[INFO] [stderr]     |                      ^^^^^^^^^ help: use `dyn`: `dyn Operation`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/mnist/main.rs:33:10
[INFO] [stderr]    |
[INFO] [stderr] 33 | ) -> Box<Iterator<Item = ArrayD<f32>>> {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = ArrayD<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]    --> examples/mnist/main.rs:150:44
[INFO] [stderr]     |
[INFO] [stderr] 150 | fn save_model(g: &Graph) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> examples/mnist/main.rs:159:50
[INFO] [stderr]     |
[INFO] [stderr] 159 | fn load_model() -> Result<(Graph, Idx, Idx), Box<std::error::Error>> {
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/ptb/main.rs:57:21
[INFO] [stderr]    |
[INFO] [stderr] 57 | ) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.75s
[INFO] running `"docker" "inspect" "387bea48d82255488df295ad6ef0e8fca1a5a86c9c1b46015cf47e92361df61f"`
[INFO] running `"docker" "rm" "-f" "387bea48d82255488df295ad6ef0e8fca1a5a86c9c1b46015cf47e92361df61f"`
[INFO] [stdout] 387bea48d82255488df295ad6ef0e8fca1a5a86c9c1b46015cf47e92361df61f