[INFO] crate deeprust 0.1.0 is already in cache [INFO] extracting crate deeprust 0.1.0 into work/ex/clippy-test-run/sources/stable/reg/deeprust/0.1.0 [INFO] extracting crate deeprust 0.1.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/deeprust/0.1.0 [INFO] validating manifest of deeprust-0.1.0 on toolchain stable [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of deeprust-0.1.0 on toolchain stable+rustflags=-Dclippy::into_iter_on_array [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing deeprust-0.1.0 [INFO] finished frobbing deeprust-0.1.0 [INFO] frobbed toml for deeprust-0.1.0 written to work/ex/clippy-test-run/sources/stable/reg/deeprust/0.1.0/Cargo.toml [INFO] started frobbing deeprust-0.1.0 [INFO] finished frobbing deeprust-0.1.0 [INFO] frobbed toml for deeprust-0.1.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/deeprust/0.1.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] linting deeprust-0.1.0 against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/deeprust/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 -Dclippy::into_iter_on_array" "-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" "+stable" "clippy" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 616793da08c41658b4d3e12bb8213f6566f99975bc38448eb984381fe974e161 [INFO] running `"docker" "start" "-a" "616793da08c41658b4d3e12bb8213f6566f99975bc38448eb984381fe974e161"` [INFO] [stderr] Checking deeprust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/L2_reg/l2_reg.rs:10:2 [INFO] [stderr] | [INFO] [stderr] 10 | return lambda*theta_square; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `lambda*theta_square` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::needless_return)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: unneeded return statement [INFO] [stderr] --> src/L2_reg/l2_reg.rs:10:2 [INFO] [stderr] | [INFO] [stderr] 10 | return lambda*theta_square; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `lambda*theta_square` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::needless_return)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return [INFO] [stderr] [INFO] [stderr] warning: value assigned to `int` is never read [INFO] [stderr] --> src/sgd/gradient.rs:59:32 [INFO] [stderr] | [INFO] [stderr] 59 | let (mut int_0,mut int_1,mut int) = (0.0,0.0,0.0); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/sgd/gradient.rs:60:7 [INFO] [stderr] | [INFO] [stderr] 60 | for index in 0..2{ [INFO] [stderr] | ^^^^^ help: consider using `_index` instead [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `int` is never read [INFO] [stderr] --> src/sgd/gradient.rs:59:32 [INFO] [stderr] | [INFO] [stderr] 59 | let (mut int_0,mut int_1,mut int) = (0.0,0.0,0.0); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `index` [INFO] [stderr] --> src/sgd/gradient.rs:60:7 [INFO] [stderr] | [INFO] [stderr] 60 | for index in 0..2{ [INFO] [stderr] | ^^^^^ help: consider using `_index` instead [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: module `L2_reg` should have a snake case name such as `l2_reg` [INFO] [stderr] --> src/lib.rs:7:1 [INFO] [stderr] | [INFO] [stderr] 7 | pub mod L2_reg; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: module `L2_reg` should have a snake case name such as `l2_reg` [INFO] [stderr] --> src/lib.rs:7:1 [INFO] [stderr] | [INFO] [stderr] 7 | pub mod L2_reg; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] [INFO] [stderr] warning: manual implementation of an assign operation [INFO] [stderr] --> src/L2_reg/l2_reg.rs:31:5 [INFO] [stderr] | [INFO] [stderr] 31 | loss = loss + regularization_term(lambda, theta)/(2.0*m); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `loss += regularization_term(lambda, theta)/(2.0*m)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::assign_op_pattern)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern [INFO] [stderr] [INFO] [stderr] warning: manual implementation of an assign operation [INFO] [stderr] --> src/sgd/gradient.rs:47:3 [INFO] [stderr] | [INFO] [stderr] 47 | self.theta.0 = self.theta.0 - self.update_int.0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.theta.0 -= self.update_int.0` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern [INFO] [stderr] [INFO] [stderr] warning: manual implementation of an assign operation [INFO] [stderr] --> src/sgd/gradient.rs:53:3 [INFO] [stderr] | [INFO] [stderr] 53 | self.theta.1 = self.theta.1 - self.update_int.1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.theta.1 -= self.update_int.1` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern [INFO] [stderr] [INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change [INFO] [stderr] --> src/sgd/gradient.rs:65:39 [INFO] [stderr] | [INFO] [stderr] 65 | self.update_int.0 = (self.sgd_alpha*(1/self.sample_size as i32)as f64)*int_0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(1/self.sample_size as i32)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::cast_lossless)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change [INFO] [stderr] --> src/sgd/gradient.rs:66:39 [INFO] [stderr] | [INFO] [stderr] 66 | self.update_int.1 = (self.sgd_alpha*(1/self.sample_size as i32) as f64)*int_1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(1/self.sample_size as i32)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: manual implementation of an assign operation [INFO] [stderr] --> src/L2_reg/l2_reg.rs:31:5 [INFO] [stderr] | [INFO] [stderr] 31 | loss = loss + regularization_term(lambda, theta)/(2.0*m); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `loss += regularization_term(lambda, theta)/(2.0*m)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::assign_op_pattern)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern [INFO] [stderr] [INFO] [stderr] warning: manual implementation of an assign operation [INFO] [stderr] --> src/sgd/gradient.rs:47:3 [INFO] [stderr] | [INFO] [stderr] 47 | self.theta.0 = self.theta.0 - self.update_int.0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.theta.0 -= self.update_int.0` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern [INFO] [stderr] [INFO] [stderr] warning: manual implementation of an assign operation [INFO] [stderr] --> src/sgd/gradient.rs:53:3 [INFO] [stderr] | [INFO] [stderr] 53 | self.theta.1 = self.theta.1 - self.update_int.1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `self.theta.1 -= self.update_int.1` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern [INFO] [stderr] [INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change [INFO] [stderr] --> src/sgd/gradient.rs:65:39 [INFO] [stderr] | [INFO] [stderr] 65 | self.update_int.0 = (self.sgd_alpha*(1/self.sample_size as i32)as f64)*int_0; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(1/self.sample_size as i32)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::cast_lossless)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting i32 to f64 may become silently lossy if types change [INFO] [stderr] --> src/sgd/gradient.rs:66:39 [INFO] [stderr] | [INFO] [stderr] 66 | self.update_int.1 = (self.sgd_alpha*(1/self.sample_size as i32) as f64)*int_1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `f64::from(1/self.sample_size as i32)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.88s [INFO] running `"docker" "inspect" "616793da08c41658b4d3e12bb8213f6566f99975bc38448eb984381fe974e161"` [INFO] running `"docker" "rm" "-f" "616793da08c41658b4d3e12bb8213f6566f99975bc38448eb984381fe974e161"` [INFO] [stdout] 616793da08c41658b4d3e12bb8213f6566f99975bc38448eb984381fe974e161