[INFO] updating cached repository https://github.com/csvsoft/rust-note
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 440fa47ce2d9f2a747bbf4e8d3bd543422b6fb7d
[INFO] checking csvsoft/rust-note against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcsvsoft%2Frust-note" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/csvsoft/rust-note on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/csvsoft/rust-note
[INFO] finished tweaking git repo https://github.com/csvsoft/rust-note
[INFO] tweaked toml for git repo https://github.com/csvsoft/rust-note written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/csvsoft/rust-note already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 64ad9fb44091b03d3e9d1ea9550363d3a992f3647e0b9792b2131eaa793db393
[INFO] running `"docker" "start" "-a" "64ad9fb44091b03d3e9d1ea9550363d3a992f3647e0b9792b2131eaa793db393"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rust_note v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]   --> tests/test_deref.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 |     use std::fs::File;
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `myBox` should have a snake case name
[INFO] [stderr]   --> tests/test_deref.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let myBox = MyBox::new(String::from("world"));
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to snake case: `my_box`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `HashMap` is imported redundantly
[INFO] [stderr]   --> src/collection/mod.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::collections::HashMap;
[INFO] [stderr]    |     ------------------------- the item `HashMap` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 54 |     use std::collections::HashMap;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `HashMap` is imported redundantly
[INFO] [stderr]   --> src/collection/mod.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 1  | use std::collections::HashMap;
[INFO] [stderr]    |     ------------------------- the item `HashMap` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 54 |     use std::collections::HashMap;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: functions used as tests can not have any arguments
[INFO] [stderr]    --> tests/thread.rs:101:1
[INFO] [stderr]     |
[INFO] [stderr] 101 | / fn reverse_str(str:&str) -> String{
[INFO] [stderr] 102 | |
[INFO] [stderr] 103 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str_a`
[INFO] [stderr]   --> src/collection/mod.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let str_a = "stra".to_string();
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_str_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str_b`
[INFO] [stderr]   --> src/collection/mod.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let str_b = String::from("strb");
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_str_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `team_score`
[INFO] [stderr]   --> src/collection/mod.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let team_score :HashMap<_,_>= teams.iter().zip(scores.iter()).collect();
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_team_score`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `median`
[INFO] [stderr]   --> src/collection/mod.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let median =  list[list.len()/2];
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_median`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/collection/mod.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let value = map.entry(x.clone()).or_insert(0);
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `avg`
[INFO] [stderr]   --> src/collection/mod.rs:92:11
[INFO] [stderr]    |
[INFO] [stderr] 92 |       let avg = sum/(list.len() as i32);
[INFO] [stderr]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_avg`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `list_excercise`
[INFO] [stderr]   --> src/collection/mod.rs:78:8
[INFO] [stderr]    |
[INFO] [stderr] 78 | pub fn list_excercise(mut list: Vec<i32>){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `largest_num`
[INFO] [stderr]  --> src/traits/mod.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn largest_num<T: PartialOrd + Copy>(list:&[T]) -> T{
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `vectInt` should have a snake case name
[INFO] [stderr]  --> src/collection/mod.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let  mut vectInt = vec![1,2,3];
[INFO] [stderr]   |              ^^^^^^^ help: convert the identifier to snake case: `vect_int`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> tests/test_rc.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let b = Con(3,Rc::clone(&a));
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c`
[INFO] [stderr]   --> tests/test_rc.rs:22:13
[INFO] [stderr]    |
[INFO] [stderr] 22 |         let c = Con(4 ,Rc::clone(&a));
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str_a`
[INFO] [stderr]   --> src/collection/mod.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let str_a = "stra".to_string();
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_str_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str_b`
[INFO] [stderr]   --> src/collection/mod.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let str_b = String::from("strb");
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_str_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `team_score`
[INFO] [stderr]   --> src/collection/mod.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let team_score :HashMap<_,_>= teams.iter().zip(scores.iter()).collect();
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_team_score`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `median`
[INFO] [stderr]   --> src/collection/mod.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |     let median =  list[list.len()/2];
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_median`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/collection/mod.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let value = map.entry(x.clone()).or_insert(0);
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `avg`
[INFO] [stderr]   --> src/collection/mod.rs:92:11
[INFO] [stderr]    |
[INFO] [stderr] 92 |       let avg = sum/(list.len() as i32);
[INFO] [stderr]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_avg`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> tests/thread.rs:101:29
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn reverse_str(str:&str) -> String{
[INFO] [stderr]     |    -----------              ^^^^^^ expected struct `std::string::String`, found `()`
[INFO] [stderr]     |    |
[INFO] [stderr]     |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `rust_note`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: function is never used: `list_excercise`
[INFO] [stderr]   --> src/collection/mod.rs:78:8
[INFO] [stderr]    |
[INFO] [stderr] 78 | pub fn list_excercise(mut list: Vec<i32>){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `largest_num`
[INFO] [stderr]  --> src/traits/mod.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn largest_num<T: PartialOrd + Copy>(list:&[T]) -> T{
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `vectInt` should have a snake case name
[INFO] [stderr]  --> src/collection/mod.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let  mut vectInt = vec![1,2,3];
[INFO] [stderr]   |              ^^^^^^^ help: convert the identifier to snake case: `vect_int`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "64ad9fb44091b03d3e9d1ea9550363d3a992f3647e0b9792b2131eaa793db393"`
[INFO] running `"docker" "rm" "-f" "64ad9fb44091b03d3e9d1ea9550363d3a992f3647e0b9792b2131eaa793db393"`
[INFO] [stdout] 64ad9fb44091b03d3e9d1ea9550363d3a992f3647e0b9792b2131eaa793db393
