[INFO] updating cached repository BiancaWentzel/LearningRust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/BiancaWentzel/LearningRust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/BiancaWentzel/LearningRust" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/BiancaWentzel/LearningRust"` [INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/BiancaWentzel/LearningRust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/BiancaWentzel/LearningRust" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/BiancaWentzel/LearningRust"` [INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/BiancaWentzel/LearningRust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 13d7820e2b92e388824ebabbc4ca4791062a687f [INFO] sha for GitHub repo BiancaWentzel/LearningRust: 13d7820e2b92e388824ebabbc4ca4791062a687f [INFO] validating manifest of BiancaWentzel/LearningRust on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of BiancaWentzel/LearningRust on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing BiancaWentzel/LearningRust [INFO] finished frobbing BiancaWentzel/LearningRust [INFO] frobbed toml for BiancaWentzel/LearningRust written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/BiancaWentzel/LearningRust/Cargo.toml [INFO] started frobbing BiancaWentzel/LearningRust [INFO] finished frobbing BiancaWentzel/LearningRust [INFO] frobbed toml for BiancaWentzel/LearningRust written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/BiancaWentzel/LearningRust/Cargo.toml [INFO] crate BiancaWentzel/LearningRust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking BiancaWentzel/LearningRust against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-3/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/BiancaWentzel/LearningRust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] aee001f5fd1bf4574a502de72af3be48023e9e0c491b10bb041ccc115aca585b [INFO] running `"docker" "start" "-a" "aee001f5fd1bf4574a502de72af3be48023e9e0c491b10bb041ccc115aca585b"` [INFO] [stderr] Checking LearningRust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: struct is never constructed: `Circle` [INFO] [stderr] --> src/bin/Rust_traits.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | struct Circle { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_traits` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_traits` [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/bin/Rust_functions.rs:53:5 [INFO] [stderr] | [INFO] [stderr] 53 | a-b //will not be executed [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unreachable_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `first_Vector` [INFO] [stderr] --> src/bin/Rust_vectors.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let first_Vector = vec![2,5,8,9]; [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_first_Vector` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `vector_strings` [INFO] [stderr] --> src/bin/Rust_vectors.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let vector_strings = vec!["hallo","tschuess"]; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_vector_strings` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `init_vector` [INFO] [stderr] --> src/bin/Rust_vectors.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | let init_vector = vec![0;10]; // init_vector = [0,0,0,0,0,0,0,0,0,0] [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_init_vector` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/Rust_vectors.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | let mut i:usize=0; [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: crate `Rust_vectors` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_vectors` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `integer_variable` [INFO] [stderr] --> src/main.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let integer_variable: i32 = 5; // variable binding of type integer 32bit with value 5 [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_integer_variable` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `not_initialized` [INFO] [stderr] --> src/main.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | let not_initialized: i32; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_not_initialized` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `outer_variable` [INFO] [stderr] --> src/main.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 35 | let outer_variable: i32 = 12; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_outer_variable` [INFO] [stderr] [INFO] [stderr] warning: variable `first_Vector` should have a snake case name [INFO] [stderr] --> src/bin/Rust_vectors.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let first_Vector = vec![2,5,8,9]; [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `first_vector` [INFO] [stderr] [INFO] [stderr] warning: crate `LearningRust` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `learning_rust` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_functions` should have a snake case name [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/bin/Rust_functions.rs:53:5 [INFO] [stderr] | [INFO] [stderr] 53 | a-b //will not be executed [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_functions` [INFO] [stderr] [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unreachable_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_borrowing` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_borrowing` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `origin_integer` [INFO] [stderr] --> src/bin/Rust_generics.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let origin_integer = Point{x:0,y:5,z:9}; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_origin_integer` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `origin_float` [INFO] [stderr] --> src/bin/Rust_generics.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | let origin_float = Point{x:0.0,y:1.0,z:8.0}; [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_origin_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/bin/Rust_generics.rs:25:26 [INFO] [stderr] | [INFO] [stderr] 25 | fn takes_anything(x:T){ [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_functions` should have a snake case name [INFO] [stderr] warning: crate `Rust_generics` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_generics` [INFO] [stderr] [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_functions` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `first_Vector` [INFO] [stderr] --> src/bin/Rust_vectors.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let first_Vector = vec![2,5,8,9]; [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_first_Vector` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `vector_strings` [INFO] [stderr] --> src/bin/Rust_vectors.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let vector_strings = vec!["hallo","tschuess"]; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_vector_strings` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `init_vector` [INFO] [stderr] --> src/bin/Rust_vectors.rs:13:9 [INFO] [stderr] | [INFO] [stderr] 13 | let init_vector = vec![0;10]; // init_vector = [0,0,0,0,0,0,0,0,0,0] [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_init_vector` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/bin/Rust_method_syntax.rs:78:13 [INFO] [stderr] | [INFO] [stderr] 78 | let c = Circle3::new(0.0, 0.0, 2.0); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_c` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_universalFunctionCallSyntax` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_universal_function_call_syntax` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/Rust_vectors.rs:24:9 [INFO] [stderr] | [INFO] [stderr] 24 | let mut i:usize=0; [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: crate `Rust_vectors` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_vectors` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/bin/Rust_strings.rs:43:9 [INFO] [stderr] | [INFO] [stderr] 43 | let a = name.chars().nth(3); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_a` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `wen` [INFO] [stderr] --> src/bin/Rust_strings.rs:49:9 [INFO] [stderr] | [INFO] [stderr] 49 | let wen = &nachname[0..2]; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_wen` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello_world` [INFO] [stderr] --> src/bin/Rust_strings.rs:56:9 [INFO] [stderr] | [INFO] [stderr] 56 | let hello_world = hello+world; [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_hello_world` [INFO] [stderr] [INFO] [stderr] warning: variable `first_Vector` should have a snake case name [INFO] [stderr] --> src/bin/Rust_vectors.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let first_Vector = vec![2,5,8,9]; [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `first_vector` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_strings` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_strings` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `slice_whole_array` [INFO] [stderr] --> src/bin/Rust_primitive_types.rs:60:9 [INFO] [stderr] | [INFO] [stderr] 60 | let slice_whole_array = &array_for_slicing[..]; // [1,2,3,4,5,6] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_slice_whole_array` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `slice_part_of_array` [INFO] [stderr] --> src/bin/Rust_primitive_types.rs:61:9 [INFO] [stderr] | [INFO] [stderr] 61 | let slice_part_of_array = &array_for_slicing[1..4]; //[2,3,4] note: the second boundary is exclusive [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_slice_part_of_array` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hetero_tuple` [INFO] [stderr] --> src/bin/Rust_primitive_types.rs:66:9 [INFO] [stderr] | [INFO] [stderr] 66 | let hetero_tuple: (i32,&str) = (1,"ein String"); [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_hetero_tuple` [INFO] [stderr] [INFO] [stderr] warning: variable `tupel1` is assigned to, but never used [INFO] [stderr] --> src/bin/Rust_primitive_types.rs:70:13 [INFO] [stderr] | [INFO] [stderr] 70 | let mut tupel1: (i32,i32) = (1,2); [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_tupel1` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `tupel1` is never read [INFO] [stderr] --> src/bin/Rust_primitive_types.rs:73:5 [INFO] [stderr] | [INFO] [stderr] 73 | tupel1=tupel2; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `single_elemnt_tuple` [INFO] [stderr] --> src/bin/Rust_primitive_types.rs:82:9 [INFO] [stderr] | [INFO] [stderr] 82 | let single_elemnt_tuple = (0,); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_single_elemnt_tuple` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/bin/Rust_method_syntax.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | x: i32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/bin/Rust_method_syntax.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | y: i32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Circle3` [INFO] [stderr] --> src/bin/Rust_method_syntax.rs:61:5 [INFO] [stderr] | [INFO] [stderr] 61 | struct Circle3 { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/bin/Rust_method_syntax.rs:68:9 [INFO] [stderr] | [INFO] [stderr] 68 | fn new(x: f64, y: f64, radius: f64) -> Circle3 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main` [INFO] [stderr] --> src/bin/Rust_method_syntax.rs:77:5 [INFO] [stderr] | [INFO] [stderr] 77 | fn main() { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_method_syntax` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_method_syntax` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_primitive_types` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_primitive_types` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `integer_variable` [INFO] [stderr] --> src/main.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | let integer_variable: i32 = 5; // variable binding of type integer 32bit with value 5 [INFO] [stderr] | ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_integer_variable` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `not_initialized` [INFO] [stderr] --> src/main.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | let not_initialized: i32; [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_not_initialized` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `outer_variable` [INFO] [stderr] --> src/main.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 35 | let outer_variable: i32 = 12; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_outer_variable` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `different_scopes` [INFO] [stderr] --> src/main.rs:37:5 [INFO] [stderr] | [INFO] [stderr] 37 | fn different_scopes() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: crate `LearningRust` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `learning_rust` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/bin/Rust_drop.rs:16:13 [INFO] [stderr] | [INFO] [stderr] 16 | let x = HasDrop; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_drop` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_drop` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `slice_whole_array` [INFO] [stderr] --> src/bin/Rust_primitive_types.rs:60:9 [INFO] [stderr] | [INFO] [stderr] 60 | let slice_whole_array = &array_for_slicing[..]; // [1,2,3,4,5,6] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_slice_whole_array` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `slice_part_of_array` [INFO] [stderr] --> src/bin/Rust_primitive_types.rs:61:9 [INFO] [stderr] | [INFO] [stderr] 61 | let slice_part_of_array = &array_for_slicing[1..4]; //[2,3,4] note: the second boundary is exclusive [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_slice_part_of_array` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hetero_tuple` [INFO] [stderr] --> src/bin/Rust_primitive_types.rs:66:9 [INFO] [stderr] | [INFO] [stderr] 66 | let hetero_tuple: (i32,&str) = (1,"ein String"); [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_hetero_tuple` [INFO] [stderr] [INFO] [stderr] warning: variable `tupel1` is assigned to, but never used [INFO] [stderr] --> src/bin/Rust_primitive_types.rs:70:13 [INFO] [stderr] | [INFO] [stderr] 70 | let mut tupel1: (i32,i32) = (1,2); [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_tupel1` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `tupel1` is never read [INFO] [stderr] --> src/bin/Rust_primitive_types.rs:73:5 [INFO] [stderr] | [INFO] [stderr] 73 | tupel1=tupel2; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `single_elemnt_tuple` [INFO] [stderr] --> src/bin/Rust_primitive_types.rs:82:9 [INFO] [stderr] | [INFO] [stderr] 82 | let single_elemnt_tuple = (0,); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_single_elemnt_tuple` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_primitive_types` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_primitive_types` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_match` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_match` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_ifs_and_loops` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_ifs_and_loops` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_lifetimes` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_lifetimes` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/bin/Rust_strings.rs:43:9 [INFO] [stderr] | [INFO] [stderr] 43 | let a = name.chars().nth(3); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_a` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `wen` [INFO] [stderr] --> src/bin/Rust_strings.rs:49:9 [INFO] [stderr] | [INFO] [stderr] 49 | let wen = &nachname[0..2]; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_wen` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hello_world` [INFO] [stderr] --> src/bin/Rust_strings.rs:56:9 [INFO] [stderr] | [INFO] [stderr] 56 | let hello_world = hello+world; [INFO] [stderr] | ^^^^^^^^^^^ help: consider prefixing with an underscore: `_hello_world` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_strings` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_strings` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `TraitObject` [INFO] [stderr] --> src/bin/Rust_traitobjects.rs:62:5 [INFO] [stderr] | [INFO] [stderr] 62 | pub struct TraitObject { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_traitobjects` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_traitobjects` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_match` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_match` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_patterns` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_patterns` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `calciumNeutron` [INFO] [stderr] --> src/bin/Rust_structs.rs:63:9 [INFO] [stderr] | [INFO] [stderr] 63 | let calciumNeutron = Neutron{}; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_calciumNeutron` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ZinnPositron` [INFO] [stderr] --> src/bin/Rust_structs.rs:64:9 [INFO] [stderr] | [INFO] [stderr] 64 | let ZinnPositron = Positron; [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_ZinnPositron` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_structs` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_structs` [INFO] [stderr] [INFO] [stderr] warning: variable `neuerPunkt` should have a snake case name [INFO] [stderr] --> src/bin/Rust_structs.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut neuerPunkt = Grid3D{x:0,y:0,z:0}; [INFO] [stderr] | ^^^^^^^^^^ help: convert the identifier to snake case: `neuer_punkt` [INFO] [stderr] [INFO] [stderr] warning: variable `neuerUrsprung` should have a snake case name [INFO] [stderr] --> src/bin/Rust_structs.rs:29:13 [INFO] [stderr] | [INFO] [stderr] 29 | let mut neuerUrsprung = Grid3D{x:1,y:1,z:1}; [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `neuer_ursprung` [INFO] [stderr] [INFO] [stderr] warning: variable `punkt4D` should have a snake case name [INFO] [stderr] --> src/bin/Rust_structs.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let punkt4D = (0,1,2,3); [INFO] [stderr] | ^^^^^^^ help: convert the identifier to snake case: `punkt4_d` [INFO] [stderr] [INFO] [stderr] warning: variable `calciumNeutron` should have a snake case name [INFO] [stderr] --> src/bin/Rust_structs.rs:63:9 [INFO] [stderr] | [INFO] [stderr] 63 | let calciumNeutron = Neutron{}; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `calcium_neutron` [INFO] [stderr] warning: unused variable: `c` [INFO] [stderr] --> src/bin/Rust_method_syntax.rs:78:13 [INFO] [stderr] | [INFO] [stderr] 78 | let c = Circle3::new(0.0, 0.0, 2.0); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_c` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_patterns` should have a snake case name [INFO] [stderr] [INFO] [stderr] warning: variable `ZinnPositron` should have a snake case name [INFO] [stderr] --> src/bin/Rust_structs.rs:64:9 [INFO] [stderr] | [INFO] [stderr] 64 | let ZinnPositron = Positron; [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `zinn_positron` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_patterns` [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_method_syntax` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_method_syntax` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/bin/Rust_enums.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | let a :Message = Message::Move {x:1,y:2}; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_a` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/bin/Rust_enums.rs:23:9 [INFO] [stderr] | [INFO] [stderr] 23 | let b:Info = Info::Move {x:3,y:8}; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `m` [INFO] [stderr] --> src/bin/Rust_enums.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | let m = Message::SaySomething("Hello, world".to_string()); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_m` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/bin/Rust_enums.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let x = foo("Hello, world".to_string()); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `plus_num` [INFO] [stderr] --> src/bin/Rust_closures.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | let plus_num = |x:i32| x+num; [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_plus_num` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/bin/Rust_closures.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let y =&mut num; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `own_num` [INFO] [stderr] --> src/bin/Rust_closures.rs:43:9 [INFO] [stderr] | [INFO] [stderr] 43 | let own_num = move |x:i32| x+new_num; [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_own_num` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_closures` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_closures` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_enums` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_enums` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_ifs_and_loops` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_ifs_and_loops` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `neuer_vector` [INFO] [stderr] --> src/bin/Rust_ownership.rs:9:17 [INFO] [stderr] | [INFO] [stderr] 9 | let mut neuer_vector = vec![i]; [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_neuer_vector` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> src/bin/Rust_ownership.rs:25:13 [INFO] [stderr] | [INFO] [stderr] 25 | let mut v2 = v; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_v2` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/Rust_ownership.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | let mut v2 = v; [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: crate `Rust_ownership` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_ownership` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_mutability` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_mutability` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_mutability` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_mutability` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/bin/Rust_iflet.rs:21:20 [INFO] [stderr] | [INFO] [stderr] 21 | while let Some(x)=v.pop() { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_iflet` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_iflet` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `plus_num` [INFO] [stderr] --> src/bin/Rust_closures.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | let plus_num = |x:i32| x+num; [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_plus_num` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `y` [INFO] [stderr] --> src/bin/Rust_closures.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | let y =&mut num; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_y` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `own_num` [INFO] [stderr] --> src/bin/Rust_closures.rs:43:9 [INFO] [stderr] | [INFO] [stderr] 43 | let own_num = move |x:i32| x+new_num; [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_own_num` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_closures` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_closures` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/bin/Rust_drop.rs:16:13 [INFO] [stderr] | [INFO] [stderr] 16 | let x = HasDrop; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `HasDrop` [INFO] [stderr] --> src/bin/Rust_drop.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | struct HasDrop; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main` [INFO] [stderr] --> src/bin/Rust_drop.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | fn main() { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_drop` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_drop` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_traitobjects` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_traitobjects` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_universalFunctionCallSyntax` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_universal_function_call_syntax` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `calciumNeutron` [INFO] [stderr] --> src/bin/Rust_structs.rs:63:9 [INFO] [stderr] | [INFO] [stderr] 63 | let calciumNeutron = Neutron{}; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_calciumNeutron` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ZinnPositron` [INFO] [stderr] --> src/bin/Rust_structs.rs:64:9 [INFO] [stderr] | [INFO] [stderr] 64 | let ZinnPositron = Positron; [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_ZinnPositron` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Grid4D` [INFO] [stderr] --> src/bin/Rust_structs.rs:39:5 [INFO] [stderr] | [INFO] [stderr] 39 | struct Grid4D(i32,i32,i32,i32); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_structs` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_structs` [INFO] [stderr] [INFO] [stderr] warning: variable `neuerPunkt` should have a snake case name [INFO] [stderr] --> src/bin/Rust_structs.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut neuerPunkt = Grid3D{x:0,y:0,z:0}; [INFO] [stderr] | ^^^^^^^^^^ help: convert the identifier to snake case: `neuer_punkt` [INFO] [stderr] [INFO] [stderr] warning: variable `neuerUrsprung` should have a snake case name [INFO] [stderr] --> src/bin/Rust_structs.rs:29:13 [INFO] [stderr] | [INFO] [stderr] 29 | let mut neuerUrsprung = Grid3D{x:1,y:1,z:1}; [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `neuer_ursprung` [INFO] [stderr] [INFO] [stderr] warning: variable `punkt4D` should have a snake case name [INFO] [stderr] --> src/bin/Rust_structs.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let punkt4D = (0,1,2,3); [INFO] [stderr] | ^^^^^^^ help: convert the identifier to snake case: `punkt4_d` [INFO] [stderr] [INFO] [stderr] warning: variable `calciumNeutron` should have a snake case name [INFO] [stderr] --> src/bin/Rust_structs.rs:63:9 [INFO] [stderr] | [INFO] [stderr] 63 | let calciumNeutron = Neutron{}; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `calcium_neutron` [INFO] [stderr] [INFO] [stderr] warning: variable `ZinnPositron` should have a snake case name [INFO] [stderr] --> src/bin/Rust_structs.rs:64:9 [INFO] [stderr] | [INFO] [stderr] 64 | let ZinnPositron = Positron; [INFO] [stderr] | ^^^^^^^^^^^^ help: convert the identifier to snake case: `zinn_positron` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Foo` [INFO] [stderr] --> src/bin/Rust_lifetimes.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | struct Foo<'a> { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `main` [INFO] [stderr] --> src/bin/Rust_lifetimes.rs:48:5 [INFO] [stderr] | [INFO] [stderr] 48 | fn main() { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_lifetimes` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_lifetimes` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/bin/Rust_iflet.rs:21:20 [INFO] [stderr] | [INFO] [stderr] 21 | while let Some(x)=v.pop() { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_iflet` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_iflet` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/bin/Rust_enums.rs:15:9 [INFO] [stderr] | [INFO] [stderr] 15 | let a :Message = Message::Move {x:1,y:2}; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_a` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `b` [INFO] [stderr] --> src/bin/Rust_enums.rs:23:9 [INFO] [stderr] | [INFO] [stderr] 23 | let b:Info = Info::Move {x:3,y:8}; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_b` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `m` [INFO] [stderr] --> src/bin/Rust_enums.rs:30:9 [INFO] [stderr] | [INFO] [stderr] 30 | let m = Message::SaySomething("Hello, world".to_string()); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_m` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/bin/Rust_enums.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | let x = foo("Hello, world".to_string()); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Quit` [INFO] [stderr] --> src/bin/Rust_enums.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | Quit, // we can have variants with no data [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/bin/Rust_enums.rs:9:14 [INFO] [stderr] | [INFO] [stderr] 9 | Move{x:i32,y:i32}, // varaiants with named data [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/bin/Rust_enums.rs:9:20 [INFO] [stderr] | [INFO] [stderr] 9 | Move{x:i32,y:i32}, // varaiants with named data [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `ChangeColor` [INFO] [stderr] --> src/bin/Rust_enums.rs:10:9 [INFO] [stderr] | [INFO] [stderr] 10 | ChangeColor(i32,i32,i32), // variants with unnamed data [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Title` [INFO] [stderr] --> src/bin/Rust_enums.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | Title(String), [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/bin/Rust_enums.rs:20:14 [INFO] [stderr] | [INFO] [stderr] 20 | Move{x:i32,y:i32}, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/bin/Rust_enums.rs:20:20 [INFO] [stderr] | [INFO] [stderr] 20 | Move{x:i32,y:i32}, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_enums` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_enums` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `neuer_vector` [INFO] [stderr] --> src/bin/Rust_ownership.rs:9:17 [INFO] [stderr] | [INFO] [stderr] 9 | let mut neuer_vector = vec![i]; [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_neuer_vector` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> src/bin/Rust_ownership.rs:25:13 [INFO] [stderr] | [INFO] [stderr] 25 | let mut v2 = v; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_v2` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/Rust_ownership.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | let mut v2 = v; [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: crate `Rust_ownership` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_ownership` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `origin_integer` [INFO] [stderr] --> src/bin/Rust_generics.rs:40:9 [INFO] [stderr] | [INFO] [stderr] 40 | let origin_integer = Point{x:0,y:5,z:9}; [INFO] [stderr] | ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_origin_integer` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `origin_float` [INFO] [stderr] --> src/bin/Rust_generics.rs:41:9 [INFO] [stderr] | [INFO] [stderr] 41 | let origin_float = Point{x:0.0,y:1.0,z:8.0}; [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_origin_float` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/bin/Rust_generics.rs:25:26 [INFO] [stderr] | [INFO] [stderr] 25 | fn takes_anything(x:T){ [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Option` [INFO] [stderr] --> src/bin/Rust_generics.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | enum Option{ [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Result` [INFO] [stderr] --> src/bin/Rust_generics.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | enum Result{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `takes_anything` [INFO] [stderr] --> src/bin/Rust_generics.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | fn takes_anything(x:T){ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `x` [INFO] [stderr] --> src/bin/Rust_generics.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 35 | x:T, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/bin/Rust_generics.rs:36:9 [INFO] [stderr] | [INFO] [stderr] 36 | y:T, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `z` [INFO] [stderr] --> src/bin/Rust_generics.rs:37:9 [INFO] [stderr] | [INFO] [stderr] 37 | z:T, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_generics` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_generics` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_traits` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_traits` [INFO] [stderr] [INFO] [stderr] warning: crate `Rust_borrowing` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `rust_borrowing` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.94s [INFO] running `"docker" "inspect" "aee001f5fd1bf4574a502de72af3be48023e9e0c491b10bb041ccc115aca585b"` [INFO] running `"docker" "rm" "-f" "aee001f5fd1bf4574a502de72af3be48023e9e0c491b10bb041ccc115aca585b"` [INFO] [stdout] aee001f5fd1bf4574a502de72af3be48023e9e0c491b10bb041ccc115aca585b