[INFO] updating cached repository M-Isonni/learning_Rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/M-Isonni/learning_Rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/M-Isonni/learning_Rust" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/M-Isonni/learning_Rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/M-Isonni/learning_Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/M-Isonni/learning_Rust" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/M-Isonni/learning_Rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/M-Isonni/learning_Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e5ed7c9e772ff95a1ca633c6a84905ba46300147
[INFO] sha for GitHub repo M-Isonni/learning_Rust: e5ed7c9e772ff95a1ca633c6a84905ba46300147
[INFO] validating manifest of M-Isonni/learning_Rust on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of M-Isonni/learning_Rust on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing M-Isonni/learning_Rust
[INFO] finished frobbing M-Isonni/learning_Rust
[INFO] frobbed toml for M-Isonni/learning_Rust written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/M-Isonni/learning_Rust/Cargo.toml
[INFO] started frobbing M-Isonni/learning_Rust
[INFO] finished frobbing M-Isonni/learning_Rust
[INFO] frobbed toml for M-Isonni/learning_Rust written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/M-Isonni/learning_Rust/Cargo.toml
[INFO] crate M-Isonni/learning_Rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking M-Isonni/learning_Rust against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-5/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/M-Isonni/learning_Rust:/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aa272aac1d90174999521818dd4e5c199dcb74f53619966169280624d87b2d17
[INFO] running `"docker" "start" "-a" "aa272aac1d90174999521818dd4e5c199dcb74f53619966169280624d87b2d17"`
[INFO] [stderr]     Checking variables v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `count` is assigned to, but never used
[INFO] [stderr]   --> src/matches.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut count = 0;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_count` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `count` is never read
[INFO] [stderr]   --> src/matches.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |         count += 1;
[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: `f`
[INFO] [stderr]   --> src/panics.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let f = match f{
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/panics.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let f = File::open("hello.txt").map_err(|error| {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/panics.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let f = File::open("hello.txt").unwrap();
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/panics.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]   --> src/panics.rs:93:9
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let res = match res{
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `second_result`
[INFO] [stderr]    --> src/panics.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let second_result = match second_result{
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_second_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `third_result`
[INFO] [stderr]    --> src/panics.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |     let third_result = match third_result {
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_third_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/panics.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |     let f = File::open("hello.txt")?;
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `both_integer`
[INFO] [stderr]    --> src/generics.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |     let both_integer = Point { x: 5, y: 10 };
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_both_integer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `integer_and_float`
[INFO] [stderr]    --> src/generics.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |     let integer_and_float = Point { x: 5, y: 4.0 };   
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_integer_and_float`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/traits.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let s = t.clone();
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/traits.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let r = u.clone();
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nickel`
[INFO] [stderr]  --> src/matches.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Nickel,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dime`
[INFO] [stderr]  --> src/matches.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Dime,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Alabama`
[INFO] [stderr]   --> src/matches.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Alabama,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `make_panic`
[INFO] [stderr]  --> src/panics.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn make_panic(){
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `out_of_index_panic`
[INFO] [stderr]   --> src/panics.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn out_of_index_panic(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `make_map_error`
[INFO] [stderr]   --> src/panics.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn make_map_error(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `make_expect_error`
[INFO] [stderr]   --> src/panics.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn make_expect_error(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `general_larget`
[INFO] [stderr]   --> src/generics.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn general_larget<T: PartialOrd + Clone>(list: &[T])->T{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `NewsArticle`
[INFO] [stderr]  --> src/traits.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct NewsArticle {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Tweet`
[INFO] [stderr]   --> src/traits.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct Tweet {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `notify`
[INFO] [stderr]   --> src/traits.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn notify(item: impl Summary) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `notify_overload`
[INFO] [stderr]   --> src/traits.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn notify_overload<T: Summary>(item1: T, item2: T) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `notify_adding_traits`
[INFO] [stderr]   --> src/traits.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn notify_adding_traits<T: Summary + Debug>(item: T) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `some_function`
[INFO] [stderr]   --> src/traits.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | / fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stderr] 49 | |     where T: Summary + Clone,
[INFO] [stderr] 50 | |           U: Clone + Debug
[INFO] [stderr] 51 | | {
[INFO] [stderr] ...  |
[INFO] [stderr] 54 | |     5
[INFO] [stderr] 55 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `returns_summarizable`
[INFO] [stderr]   --> src/traits.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn returns_summarizable() -> impl Summary {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Pair`
[INFO] [stderr]   --> src/traits.rs:89:1
[INFO] [stderr]    |
[INFO] [stderr] 89 | struct Pair<T> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/traits.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     fn new(x: T, y: T) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cmp_display`
[INFO] [stderr]    --> src/traits.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn cmp_display(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `count` is assigned to, but never used
[INFO] [stderr]   --> src/matches.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut count = 0;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_count` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `count` is never read
[INFO] [stderr]   --> src/matches.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |         count += 1;
[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: `f`
[INFO] [stderr]   --> src/panics.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let f = match f{
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/panics.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let f = File::open("hello.txt").map_err(|error| {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/panics.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let f = File::open("hello.txt").unwrap();
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/panics.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let f = File::open("hello.txt").expect("Failed to open hello.txt");
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]   --> src/panics.rs:93:9
[INFO] [stderr]    |
[INFO] [stderr] 93 |     let res = match res{
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `second_result`
[INFO] [stderr]    --> src/panics.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |     let second_result = match second_result{
[INFO] [stderr]     |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_second_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `third_result`
[INFO] [stderr]    --> src/panics.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |     let third_result = match third_result {
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_third_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/panics.rs:114:9
[INFO] [stderr]     |
[INFO] [stderr] 114 |     let f = File::open("hello.txt")?;
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `both_integer`
[INFO] [stderr]    --> src/generics.rs:110:9
[INFO] [stderr]     |
[INFO] [stderr] 110 |     let both_integer = Point { x: 5, y: 10 };
[INFO] [stderr]     |         ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_both_integer`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `integer_and_float`
[INFO] [stderr]    --> src/generics.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |     let integer_and_float = Point { x: 5, y: 4.0 };   
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_integer_and_float`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/traits.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let s = t.clone();
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/traits.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |     let r = u.clone();
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nickel`
[INFO] [stderr]  --> src/matches.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Nickel,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dime`
[INFO] [stderr]  --> src/matches.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Dime,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Alabama`
[INFO] [stderr]   --> src/matches.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Alabama,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `make_panic`
[INFO] [stderr]  --> src/panics.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn make_panic(){
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `out_of_index_panic`
[INFO] [stderr]   --> src/panics.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn out_of_index_panic(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `make_map_error`
[INFO] [stderr]   --> src/panics.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn make_map_error(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `make_expect_error`
[INFO] [stderr]   --> src/panics.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | pub fn make_expect_error(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `general_larget`
[INFO] [stderr]   --> src/generics.rs:53:1
[INFO] [stderr]    |
[INFO] [stderr] 53 | fn general_larget<T: PartialOrd + Clone>(list: &[T])->T{
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `NewsArticle`
[INFO] [stderr]  --> src/traits.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct NewsArticle {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Tweet`
[INFO] [stderr]   --> src/traits.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub struct Tweet {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `notify`
[INFO] [stderr]   --> src/traits.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn notify(item: impl Summary) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `notify_overload`
[INFO] [stderr]   --> src/traits.rs:39:1
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn notify_overload<T: Summary>(item1: T, item2: T) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `notify_adding_traits`
[INFO] [stderr]   --> src/traits.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn notify_adding_traits<T: Summary + Debug>(item: T) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `some_function`
[INFO] [stderr]   --> src/traits.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | / fn some_function<T, U>(t: T, u: U) -> i32
[INFO] [stderr] 49 | |     where T: Summary + Clone,
[INFO] [stderr] 50 | |           U: Clone + Debug
[INFO] [stderr] 51 | | {
[INFO] [stderr] ...  |
[INFO] [stderr] 54 | |     5
[INFO] [stderr] 55 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `returns_summarizable`
[INFO] [stderr]   --> src/traits.rs:59:1
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn returns_summarizable() -> impl Summary {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Pair`
[INFO] [stderr]   --> src/traits.rs:89:1
[INFO] [stderr]    |
[INFO] [stderr] 89 | struct Pair<T> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/traits.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     fn new(x: T, y: T) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `cmp_display`
[INFO] [stderr]    --> src/traits.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn cmp_display(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "aa272aac1d90174999521818dd4e5c199dcb74f53619966169280624d87b2d17"`
[INFO] running `"docker" "rm" "-f" "aa272aac1d90174999521818dd4e5c199dcb74f53619966169280624d87b2d17"`
[INFO] [stdout] aa272aac1d90174999521818dd4e5c199dcb74f53619966169280624d87b2d17