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[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkanishkd4%2FRust-by-example" "/workspace/builds/worker-12/source", kill_on_drop: false }`
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[INFO] crate git repo https://github.com/kanishkd4/Rust-by-example already has a lockfile, it will not be regenerated
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[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] [stderr] Checking rust-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout] --> src/bin/c14_generics_new_associated.rs:60:24
[INFO] [stdout] |
[INFO] [stdout] 60 | fn contains(&self, &A, &B) -> bool; // explicitly requires A and B
[INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout] = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: type `u64_t` should have an upper camel case name
[INFO] [stdout] --> src/bin/c5_types.rs:14:6
[INFO] [stdout] |
[INFO] [stdout] 14 | type u64_t = u64;
[INFO] [stdout] | ^^^^^ help: convert the identifier to upper camel case: `U64T`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variable `Food` should have a snake case name
[INFO] [stdout] --> src/bin/c18_error_option_unwrap.rs:81:21
[INFO] [stdout] |
[INFO] [stdout] 81 | Some(Peeled(Food)) => Some(Chopped(Food)),
[INFO] [stdout] | ^^^^ help: convert the identifier to snake case (notice the capitalization): `food`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variable `Food` should have a snake case name
[INFO] [stdout] --> src/bin/c18_error_option_unwrap.rs:87:26
[INFO] [stdout] |
[INFO] [stdout] 87 | chopped.map(|Chopped(Food)| Cooked(Food))
[INFO] [stdout] | ^^^^ help: convert the identifier to snake case (notice the capitalization): `food`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout] --> src/bin/c14_generics_associated_phantom.rs:10:24
[INFO] [stdout] |
[INFO] [stdout] 10 | fn contains(&self, &Self::A, &Self::B) -> bool;
[INFO] [stdout] | ^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::A`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout] = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: type `web_event` should have an upper camel case name
[INFO] [stdout] --> src/bin/c3_custom_types_enums1.rs:6:6
[INFO] [stdout] |
[INFO] [stdout] 6 | enum web_event {
[INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to upper camel case: `WebEvent`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: struct is never constructed: `Deep`
[INFO] [stdout] --> src/bin/c1_formatted_print.rs:34:8
[INFO] [stdout] |
[INFO] [stdout] 34 | struct Deep(Structure);
[INFO] [stdout] | ^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout] --> src/bin/c1_formatted_print.rs:38:5
[INFO] [stdout] |
[INFO] [stdout] 38 | name: &'a str,
[INFO] [stdout] | ^^^^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variant `page_load` should have an upper camel case name
[INFO] [stdout] --> src/bin/c3_custom_types_enums1.rs:8:5
[INFO] [stdout] |
[INFO] [stdout] 8 | page_load,
[INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to upper camel case: `PageLoad`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout] --> src/bin/c1_formatted_print.rs:39:5
[INFO] [stdout] |
[INFO] [stdout] 39 | age: u8
[INFO] [stdout] | ^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variant `page_unload` should have an upper camel case name
[INFO] [stdout] --> src/bin/c3_custom_types_enums1.rs:9:5
[INFO] [stdout] |
[INFO] [stdout] 9 | page_unload,
[INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to upper camel case: `PageUnload`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variant `key_press` should have an upper camel case name
[INFO] [stdout] --> src/bin/c3_custom_types_enums1.rs:11:5
[INFO] [stdout] |
[INFO] [stdout] 11 | key_press(char),
[INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to upper camel case: `KeyPress`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variant `paste` should have an upper camel case name
[INFO] [stdout] --> src/bin/c3_custom_types_enums1.rs:12:5
[INFO] [stdout] |
[INFO] [stdout] 12 | paste(String),
[INFO] [stdout] | ^^^^^ help: convert the identifier to upper camel case: `Paste`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variant `click` should have an upper camel case name
[INFO] [stdout] --> src/bin/c3_custom_types_enums1.rs:14:5
[INFO] [stdout] |
[INFO] [stdout] 14 | click { x: i64, y: i64 },
[INFO] [stdout] | ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Click`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `foo`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:8:4
[INFO] [stdout] |
[INFO] [stdout] 8 | fn foo<T>(_arg: T) {} // becuase T has been specified as a generic type parameter using <T>,
[INFO] [stdout] | ^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: struct is never constructed: `Deep`
[INFO] [stdout] --> src/bin/c1_formatted_print.rs:34:8
[INFO] [stdout] |
[INFO] [stdout] 34 | struct Deep(Structure);
[INFO] [stdout] | ^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout] --> src/bin/c15_scoping_lifetimes2.rs:54:5
[INFO] [stdout] |
[INFO] [stdout] 54 | x: &'a i32,
[INFO] [stdout] | ^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout] --> src/bin/c14_generics_new_associated.rs:60:28
[INFO] [stdout] |
[INFO] [stdout] 60 | fn contains(&self, &A, &B) -> bool; // explicitly requires A and B
[INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &B`
[INFO] [stdout] |
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout] = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout] --> src/bin/c14_generics_associated_phantom.rs:10:34
[INFO] [stdout] |
[INFO] [stdout] 10 | fn contains(&self, &Self::A, &Self::B) -> bool;
[INFO] [stdout] | ^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::B`
[INFO] [stdout] |
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout] = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: type alias is never used: `u64_t`
[INFO] [stdout] --> src/bin/c5_types.rs:14:1
[INFO] [stdout] |
[INFO] [stdout] 14 | type u64_t = u64;
[INFO] [stdout] | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: struct is never constructed: `S`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:48:8
[INFO] [stdout] |
[INFO] [stdout] 48 | struct S(A); // concrete type S that takes concrete type A defined above // commented for struct S below
[INFO] [stdout] | ^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: struct is never constructed: `SGen`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:49:8
[INFO] [stdout] |
[INFO] [stdout] 49 | struct SGen<T>(T); // Generic type SGen
[INFO] [stdout] | ^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `reg_fn`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:51:4
[INFO] [stdout] |
[INFO] [stdout] 51 | fn reg_fn(_s: S) {} // a regular function that takes an argument of type S - not a generic function
[INFO] [stdout] | ^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `gen_spec_t`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:53:4
[INFO] [stdout] |
[INFO] [stdout] 53 | fn gen_spec_t(_s: SGen<A>) {} // this is also not a generic as SGen has been given the type A
[INFO] [stdout] | ^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `gen_spec_i32`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:54:4
[INFO] [stdout] |
[INFO] [stdout] 54 | fn gen_spec_i32(_s: SGen<i32>) {} // this is also not a generic
[INFO] [stdout] | ^^^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `generic`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:55:4
[INFO] [stdout] |
[INFO] [stdout] 55 | fn generic<T>(_s: SGen<T>) {} // a generic function
[INFO] [stdout] | ^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: struct is never constructed: `S1`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:59:8
[INFO] [stdout] |
[INFO] [stdout] 59 | struct S1; // concrete type S
[INFO] [stdout] | ^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: struct is never constructed: `GenericVal`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:60:8
[INFO] [stdout] |
[INFO] [stdout] 60 | struct GenericVal<T>(T, ); // Generic type GenericVal
[INFO] [stdout] | ^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout] --> src/bin/c14_generics_associated_phantom.rs:10:24
[INFO] [stdout] |
[INFO] [stdout] 10 | fn contains(&self, &Self::A, &Self::B) -> bool;
[INFO] [stdout] | ^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::A`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout] = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout] --> src/bin/c14_generics_associated_phantom.rs:10:34
[INFO] [stdout] |
[INFO] [stdout] 10 | fn contains(&self, &Self::A, &Self::B) -> bool;
[INFO] [stdout] | ^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::B`
[INFO] [stdout] |
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout] = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout] --> src/bin/c14_generics_new_associated.rs:60:24
[INFO] [stdout] |
[INFO] [stdout] 60 | fn contains(&self, &A, &B) -> bool; // explicitly requires A and B
[INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &A`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout] = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout] --> src/bin/c14_generics_new_associated.rs:60:28
[INFO] [stdout] |
[INFO] [stdout] 60 | fn contains(&self, &A, &B) -> bool; // explicitly requires A and B
[INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &B`
[INFO] [stdout] |
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout] = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout] --> src/bin/c6_conversions.rs:44:5
[INFO] [stdout] |
[INFO] [stdout] 44 | value: i32,
[INFO] [stdout] | ^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout] --> src/bin/c15_scoping_lifetimes2.rs:55:5
[INFO] [stdout] |
[INFO] [stdout] 55 | y: &'a i32,
[INFO] [stdout] | ^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout] --> src/bin/c1_formatted_print.rs:38:5
[INFO] [stdout] |
[INFO] [stdout] 38 | name: &'a str,
[INFO] [stdout] | ^^^^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout] --> src/bin/c1_formatted_print.rs:39:5
[INFO] [stdout] |
[INFO] [stdout] 39 | age: u8
[INFO] [stdout] | ^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused label
[INFO] [stdout] --> src/bin/c8_flow_control_ifelse_loops.rs:57:9
[INFO] [stdout] |
[INFO] [stdout] 57 | 'inner: loop {
[INFO] [stdout] | ^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: type `s` should have an upper camel case name
[INFO] [stdout] --> src/bin/c14_generics_bounds_where.rs:12:8
[INFO] [stdout] |
[INFO] [stdout] 12 | struct s<T: Display>(T); // S can only be a type that implements the Display trait - so no vectors
[INFO] [stdout] | ^ help: convert the identifier to upper camel case (notice the capitalization): `S`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout] --> src/bin/c17_macro_dry_dsl_variadics.rs:37:9
[INFO] [stdout] |
[INFO] [stdout] 37 | use std::iter;
[INFO] [stdout] | ^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout] --> src/bin/c17_macro_dry_dsl_variadics.rs:36:1
[INFO] [stdout] |
[INFO] [stdout] 36 | mod test {
[INFO] [stdout] | ^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout] --> src/bin/c15_scoping_lifetimes1.rs:56:18
[INFO] [stdout] |
[INFO] [stdout] 56 | fn failed_borrow<'a>() {
[INFO] [stdout] | -^^- help: elide the unused lifetime
[INFO] [stdout] |
[INFO] [stdout] = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `printer`
[INFO] [stdout] --> src/bin/c14_generics_bounds_where.rs:7:4
[INFO] [stdout] |
[INFO] [stdout] 7 | fn printer<T: Display>(t: T) {
[INFO] [stdout] | ^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: struct is never constructed: `s`
[INFO] [stdout] --> src/bin/c14_generics_bounds_where.rs:12:8
[INFO] [stdout] |
[INFO] [stdout] 12 | struct s<T: Display>(T); // S can only be a type that implements the Display trait - so no vectors
[INFO] [stdout] | ^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `add_assign`
[INFO] [stdout] --> src/bin/c17_macro_dry_dsl_variadics.rs:21:9
[INFO] [stdout] |
[INFO] [stdout] 21 | fn $func<T: $bound<T, Output=T> + Copy>(xs: &mut Vec<T>, ys: &Vec<T>) {
[INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 | op!(add_assign, Add, +=, add);
[INFO] [stdout] | ----------------------------- in this macro invocation
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] = note: this warning originates in the macro `op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `mul_assign`
[INFO] [stdout] --> src/bin/c17_macro_dry_dsl_variadics.rs:21:9
[INFO] [stdout] |
[INFO] [stdout] 21 | fn $func<T: $bound<T, Output=T> + Copy>(xs: &mut Vec<T>, ys: &Vec<T>) {
[INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 | op!(mul_assign, Mul, *=, mul);
[INFO] [stdout] | ----------------------------- in this macro invocation
[INFO] [stdout] |
[INFO] [stdout] = note: this warning originates in the macro `op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `sub_assign`
[INFO] [stdout] --> src/bin/c17_macro_dry_dsl_variadics.rs:21:9
[INFO] [stdout] |
[INFO] [stdout] 21 | fn $func<T: $bound<T, Output=T> + Copy>(xs: &mut Vec<T>, ys: &Vec<T>) {
[INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 | op!(sub_assign, Sub, -=, sub);
[INFO] [stdout] | ----------------------------- in this macro invocation
[INFO] [stdout] |
[INFO] [stdout] = note: this warning originates in the macro `op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stderr] error: could not compile `rust-by-example` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function is never used: `foo`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:8:4
[INFO] [stdout] |
[INFO] [stdout] 8 | fn foo<T>(_arg: T) {} // becuase T has been specified as a generic type parameter using <T>,
[INFO] [stdout] | ^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: struct is never constructed: `S`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:48:8
[INFO] [stdout] |
[INFO] [stdout] 48 | struct S(A); // concrete type S that takes concrete type A defined above // commented for struct S below
[INFO] [stdout] | ^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: struct is never constructed: `SGen`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:49:8
[INFO] [stdout] |
[INFO] [stdout] 49 | struct SGen<T>(T); // Generic type SGen
[INFO] [stdout] | ^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `reg_fn`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:51:4
[INFO] [stdout] |
[INFO] [stdout] 51 | fn reg_fn(_s: S) {} // a regular function that takes an argument of type S - not a generic function
[INFO] [stdout] | ^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `gen_spec_t`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:53:4
[INFO] [stdout] |
[INFO] [stdout] 53 | fn gen_spec_t(_s: SGen<A>) {} // this is also not a generic as SGen has been given the type A
[INFO] [stdout] | ^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `gen_spec_i32`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:54:4
[INFO] [stdout] |
[INFO] [stdout] 54 | fn gen_spec_i32(_s: SGen<i32>) {} // this is also not a generic
[INFO] [stdout] | ^^^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `generic`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:55:4
[INFO] [stdout] |
[INFO] [stdout] 55 | fn generic<T>(_s: SGen<T>) {} // a generic function
[INFO] [stdout] | ^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: struct is never constructed: `S1`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:59:8
[INFO] [stdout] |
[INFO] [stdout] 59 | struct S1; // concrete type S
[INFO] [stdout] | ^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: struct is never constructed: `GenericVal`
[INFO] [stdout] --> src/bin/c14_generics_functions_impl_traits.rs:60:8
[INFO] [stdout] |
[INFO] [stdout] 60 | struct GenericVal<T>(T, ); // Generic type GenericVal
[INFO] [stdout] | ^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: type `web_event` should have an upper camel case name
[INFO] [stdout] --> src/bin/c3_custom_types_enums1.rs:6:6
[INFO] [stdout] |
[INFO] [stdout] 6 | enum web_event {
[INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to upper camel case: `WebEvent`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variant `page_load` should have an upper camel case name
[INFO] [stdout] --> src/bin/c3_custom_types_enums1.rs:8:5
[INFO] [stdout] |
[INFO] [stdout] 8 | page_load,
[INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to upper camel case: `PageLoad`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variant `page_unload` should have an upper camel case name
[INFO] [stdout] --> src/bin/c3_custom_types_enums1.rs:9:5
[INFO] [stdout] |
[INFO] [stdout] 9 | page_unload,
[INFO] [stdout] | ^^^^^^^^^^^ help: convert the identifier to upper camel case: `PageUnload`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variant `key_press` should have an upper camel case name
[INFO] [stdout] --> src/bin/c3_custom_types_enums1.rs:11:5
[INFO] [stdout] |
[INFO] [stdout] 11 | key_press(char),
[INFO] [stdout] | ^^^^^^^^^ help: convert the identifier to upper camel case: `KeyPress`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variant `paste` should have an upper camel case name
[INFO] [stdout] --> src/bin/c3_custom_types_enums1.rs:12:5
[INFO] [stdout] |
[INFO] [stdout] 12 | paste(String),
[INFO] [stdout] | ^^^^^ help: convert the identifier to upper camel case: `Paste`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variant `click` should have an upper camel case name
[INFO] [stdout] --> src/bin/c3_custom_types_enums1.rs:14:5
[INFO] [stdout] |
[INFO] [stdout] 14 | click { x: i64, y: i64 },
[INFO] [stdout] | ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Click`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout] --> src/bin/c8_flow_control_match.rs:10:11
[INFO] [stdout] |
[INFO] [stdout] 10 | 13...19 => println!("A teen"), // match an inclusive range. I've only seen the pattern ... in a match. ..= also works
[INFO] [stdout] | ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout] --> src/bin/c8_flow_control_match.rs:108:14
[INFO] [stdout] |
[INFO] [stdout] 108 | n @ 1...12 => println!("A child of {:?}", n), // again `...` instead of `..=` in match. Just stick to ..= in your own code
[INFO] [stdout] | ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] |
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout] --> src/bin/c8_flow_control_match.rs:109:15
[INFO] [stdout] |
[INFO] [stdout] 109 | n @ 13...19 => println!("A child of age {:?}", n),
[INFO] [stdout] | ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] |
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: type `s` should have an upper camel case name
[INFO] [stdout] --> src/bin/c14_generics_bounds_where.rs:12:8
[INFO] [stdout] |
[INFO] [stdout] 12 | struct s<T: Display>(T); // S can only be a type that implements the Display trait - so no vectors
[INFO] [stdout] | ^ help: convert the identifier to upper camel case (notice the capitalization): `S`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: type `u64_t` should have an upper camel case name
[INFO] [stdout] --> src/bin/c5_types.rs:14:6
[INFO] [stdout] |
[INFO] [stdout] 14 | type u64_t = u64;
[INFO] [stdout] | ^^^^^ help: convert the identifier to upper camel case: `U64T`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `p1`
[INFO] [stdout] --> src/bin/c3_custom_types_structs.rs:25:5
[INFO] [stdout] |
[INFO] [stdout] 25 | p1: Point,
[INFO] [stdout] | ^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `p2`
[INFO] [stdout] --> src/bin/c3_custom_types_structs.rs:26:5
[INFO] [stdout] |
[INFO] [stdout] 26 | p2: Point,
[INFO] [stdout] | ^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `p1`
[INFO] [stdout] --> src/bin/c3_custom_types_structs.rs:25:5
[INFO] [stdout] |
[INFO] [stdout] 25 | p1: Point,
[INFO] [stdout] | ^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: type alias is never used: `u64_t`
[INFO] [stdout] --> src/bin/c5_types.rs:14:1
[INFO] [stdout] |
[INFO] [stdout] 14 | type u64_t = u64;
[INFO] [stdout] | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `foo`
[INFO] [stdout] --> src/bin/c9_higher_order_diverging_functions.rs:44:4
[INFO] [stdout] |
[INFO] [stdout] 44 | fn foo() -> ! {
[INFO] [stdout] | ^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variable `Food` should have a snake case name
[INFO] [stdout] --> src/bin/c18_error_option_unwrap.rs:81:21
[INFO] [stdout] |
[INFO] [stdout] 81 | Some(Peeled(Food)) => Some(Chopped(Food)),
[INFO] [stdout] | ^^^^ help: convert the identifier to snake case (notice the capitalization): `food`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `foo`
[INFO] [stdout] --> src/bin/c9_higher_order_diverging_functions.rs:44:4
[INFO] [stdout] |
[INFO] [stdout] 44 | fn foo() -> ! {
[INFO] [stdout] | ^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout] --> src/bin/c15_scoping_lifetimes2.rs:54:5
[INFO] [stdout] |
[INFO] [stdout] 54 | x: &'a i32,
[INFO] [stdout] | ^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: function is never used: `printer`
[INFO] [stdout] --> src/bin/c14_generics_bounds_where.rs:7:4
[INFO] [stdout] |
[INFO] [stdout] 7 | fn printer<T: Display>(t: T) {
[INFO] [stdout] | ^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: struct is never constructed: `s`
[INFO] [stdout] --> src/bin/c14_generics_bounds_where.rs:12:8
[INFO] [stdout] |
[INFO] [stdout] 12 | struct s<T: Display>(T); // S can only be a type that implements the Display trait - so no vectors
[INFO] [stdout] | ^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout] --> src/bin/c8_flow_control_match.rs:10:11
[INFO] [stdout] |
[INFO] [stdout] 10 | 13...19 => println!("A teen"), // match an inclusive range. I've only seen the pattern ... in a match. ..= also works
[INFO] [stdout] | ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout] --> src/bin/c8_flow_control_match.rs:108:14
[INFO] [stdout] |
[INFO] [stdout] 108 | n @ 1...12 => println!("A child of {:?}", n), // again `...` instead of `..=` in match. Just stick to ..= in your own code
[INFO] [stdout] | ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] |
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout] --> src/bin/c8_flow_control_match.rs:109:15
[INFO] [stdout] |
[INFO] [stdout] 109 | n @ 13...19 => println!("A child of age {:?}", n),
[INFO] [stdout] | ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] |
[INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variable `Food` should have a snake case name
[INFO] [stdout] --> src/bin/c18_error_option_unwrap.rs:87:26
[INFO] [stdout] |
[INFO] [stdout] 87 | chopped.map(|Chopped(Food)| Cooked(Food))
[INFO] [stdout] | ^^^^ help: convert the identifier to snake case (notice the capitalization): `food`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused label
[INFO] [stdout] --> src/bin/c8_flow_control_ifelse_loops.rs:57:9
[INFO] [stdout] |
[INFO] [stdout] 57 | 'inner: loop {
[INFO] [stdout] | ^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] error: lifetime parameter `'a` never used
[INFO] [stdout] --> src/bin/c15_scoping_lifetimes1.rs:56:18
[INFO] [stdout] |
[INFO] [stdout] 56 | fn failed_borrow<'a>() {
[INFO] [stdout] | -^^- help: elide the unused lifetime
[INFO] [stdout] |
[INFO] [stdout] = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout] --> src/bin/c6_conversions.rs:44:5
[INFO] [stdout] |
[INFO] [stdout] 44 | value: i32,
[INFO] [stdout] | ^^^^^^^^^^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `p2`
[INFO] [stdout] --> src/bin/c3_custom_types_structs.rs:26:5
[INFO] [stdout] |
[INFO] [stdout] 26 | p2: Point,
[INFO] [stdout] | ^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout] --> src/bin/c15_scoping_lifetimes2.rs:55:5
[INFO] [stdout] |
[INFO] [stdout] 55 | y: &'a i32,
[INFO] [stdout] | ^^^^^^^^^^
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "72f0ce97dcca16ec353755e937e1589a7d33be8ac7ca3119e45caa46ca4fabdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72f0ce97dcca16ec353755e937e1589a7d33be8ac7ca3119e45caa46ca4fabdb", kill_on_drop: false }`
[INFO] [stdout] 72f0ce97dcca16ec353755e937e1589a7d33be8ac7ca3119e45caa46ca4fabdb