[INFO] crate lfa 0.12.1 is already in cache
[INFO] extracting crate lfa 0.12.1 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/lfa/0.12.1
[INFO] extracting crate lfa 0.12.1 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/lfa/0.12.1
[INFO] validating manifest of lfa-0.12.1 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lfa-0.12.1 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lfa-0.12.1
[INFO] finished frobbing lfa-0.12.1
[INFO] frobbed toml for lfa-0.12.1 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/lfa/0.12.1/Cargo.toml
[INFO] started frobbing lfa-0.12.1
[INFO] finished frobbing lfa-0.12.1
[INFO] frobbed toml for lfa-0.12.1 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/lfa/0.12.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lfa-0.12.1 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-2/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/lfa/0.12.1:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 871c8ee6fe117e7b527a503b142dc337c406154943292565e5abd91e0335bdd5
[INFO] running `"docker" "start" "-a" "871c8ee6fe117e7b527a503b142dc337c406154943292565e5abd91e0335bdd5"`
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking elementwise v0.3.2
[INFO] [stderr]    Compiling lfa_derive v0.12.0
[INFO] [stderr]     Checking spaces v4.7.1
[INFO] [stderr]     Checking lfa v0.12.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/core/features.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | / macro_rules! apply_to_dense_or_sparse {
[INFO] [stderr] 46 | |     ($call:ident => $features:expr) => {
[INFO] [stderr] 47 | |         match $features {
[INFO] [stderr] 48 | |             Features::Dense(ref activations) => $call(activations),
[INFO] [stderr] ...  |
[INFO] [stderr] 69 | |     };
[INFO] [stderr] 70 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/transforms/mod.rs:12:29
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub type EndoTransform<T> = Transform<T, Output = T>;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Transform<T, Output = T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `indices`
[INFO] [stderr]    --> src/core/features.rs:256:12
[INFO] [stderr]     |
[INFO] [stderr] 256 |         }; indices, {
[INFO] [stderr]     |            ^^^^^^^ help: consider prefixing with an underscore: `_indices`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `activations`
[INFO] [stderr]    --> src/core/features.rs:264:36
[INFO] [stderr]     |
[INFO] [stderr] 264 |         apply_to_features!(self => activations, {
[INFO] [stderr]     |                                    ^^^^^^^^^^^ help: consider prefixing with an underscore: `_activations`
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/core/features.rs:45:1
[INFO] [stderr]    |
[INFO] [stderr] 45 | / macro_rules! apply_to_dense_or_sparse {
[INFO] [stderr] 46 | |     ($call:ident => $features:expr) => {
[INFO] [stderr] 47 | |         match $features {
[INFO] [stderr] 48 | |             Features::Dense(ref activations) => $call(activations),
[INFO] [stderr] ...  |
[INFO] [stderr] 69 | |     };
[INFO] [stderr] 70 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/transforms/mod.rs:12:29
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub type EndoTransform<T> = Transform<T, Output = T>;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Transform<T, Output = T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `inspect_candidate`
[INFO] [stderr]    --> src/basis/ifdd.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn inspect_candidate(&mut self, g: usize, h: usize, error: f64) -> Option<CandidateFeature> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `discover_dense`
[INFO] [stderr]    --> src/basis/ifdd.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 |     fn discover_dense(&mut self, phi: Vector<f64>, error: f64) -> Vec<CandidateFeature> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `discover_sparse`
[INFO] [stderr]    --> src/basis/ifdd.rs:143:5
[INFO] [stderr]     |
[INFO] [stderr] 143 |     fn discover_sparse(&mut self, active_indices: IndexSet, error: f64) -> Vec<CandidateFeature> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_feature`
[INFO] [stderr]    --> src/basis/ifdd.rs:151:5
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn add_feature(&mut self, candidate: CandidateFeature) -> Option<(usize, IndexSet)> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `discover`
[INFO] [stderr]    --> src/basis/ifdd.rs:163:5
[INFO] [stderr]     |
[INFO] [stderr] 163 | /     fn discover<I>(&mut self, input: &I, error: f64) -> Option<HashMap<IndexT, IndexSet>>
[INFO] [stderr] 164 | |     where
[INFO] [stderr] 165 | |         I: ?Sized,
[INFO] [stderr] 166 | |         P: Projector<I>
[INFO] [stderr] ...   |
[INFO] [stderr] 184 | |         })
[INFO] [stderr] 185 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `indices`
[INFO] [stderr]    --> src/core/features.rs:256:12
[INFO] [stderr]     |
[INFO] [stderr] 256 |         }; indices, {
[INFO] [stderr]     |            ^^^^^^^ help: consider prefixing with an underscore: `_indices`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `activations`
[INFO] [stderr]    --> src/core/features.rs:264:36
[INFO] [stderr]     |
[INFO] [stderr] 264 |         apply_to_features!(self => activations, {
[INFO] [stderr]     |                                    ^^^^^^^^^^^ help: consider prefixing with an underscore: `_activations`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.88s
[INFO] running `"docker" "inspect" "871c8ee6fe117e7b527a503b142dc337c406154943292565e5abd91e0335bdd5"`
[INFO] running `"docker" "rm" "-f" "871c8ee6fe117e7b527a503b142dc337c406154943292565e5abd91e0335bdd5"`
[INFO] [stdout] 871c8ee6fe117e7b527a503b142dc337c406154943292565e5abd91e0335bdd5