[INFO] cloning repository https://github.com/anztrax/learnrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anztrax/learnrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanztrax%2Flearnrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanztrax%2Flearnrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d04f8dcbd5690f4b590bcf9fdaaccaa6fa844a9f
[INFO] testing anztrax/learnrust against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanztrax%2Flearnrust" "/workspace/builds/worker-26/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anztrax/learnrust on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anztrax/learnrust
[INFO] finished tweaking git repo https://github.com/anztrax/learnrust
[INFO] tweaked toml for git repo https://github.com/anztrax/learnrust written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate git repo https://github.com/anztrax/learnrust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fc18140b777da18aae09ced630bf91406f113ae8ebebb618e5003e3ea5dc842
[INFO] running `Command { std: "docker" "start" "-a" "8fc18140b777da18aae09ced630bf91406f113ae8ebebb618e5003e3ea5dc842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fc18140b777da18aae09ced630bf91406f113ae8ebebb618e5003e3ea5dc842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc18140b777da18aae09ced630bf91406f113ae8ebebb618e5003e3ea5dc842", kill_on_drop: false }`
[INFO] [stdout] 8fc18140b777da18aae09ced630bf91406f113ae8ebebb618e5003e3ea5dc842
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfcc0003606b4349c1f6449136355b1a0c78f48bd42be75ee254649e522c3faf
[INFO] running `Command { std: "docker" "start" "-a" "dfcc0003606b4349c1f6449136355b1a0c78f48bd42be75ee254649e522c3faf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling learnrust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/lessons/tryGenericTypes.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     (self.x.pow(2) +  self.y.pow(2))
[INFO] [stdout]    |     ^                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 -     (self.x.pow(2) +  self.y.pow(2))
[INFO] [stdout] 16 +     self.x.pow(2) +  self.y.pow(2)
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::lessons::Rectangle::Rectangle`
[INFO] [stdout]  --> src/adder/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ::lessons::Rectangle::Rectangle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::lessons::Guess::Guess`
[INFO] [stdout]  --> src/adder/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ::lessons::Guess::Guess;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/closures/learnIterator.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 |     if(self.count < 6){
[INFO] [stdout]    |       ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 30 -     if(self.count < 6){
[INFO] [stdout] 30 +     if self.count < 6 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v_reference`
[INFO] [stdout]   --> src/lessons/commonCollection.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let v_reference = &v[v_index];
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_reference`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/lessons/tryStringCollection.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 |   let s2 = String::from("tac");
[INFO] [stdout]    |       ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point2`
[INFO] [stdout]   --> src/lessons/tryGenericTypes.rs:48:7
[INFO] [stdout]    |
[INFO] [stdout] 48 |   let point2 = Point{x : 10.1, y: 20.2};
[INFO] [stdout]    |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_point2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point2_2`
[INFO] [stdout]   --> src/lessons/tryGenericTypes.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |   let point2_2 = Point2{x : 20, y : 20.1};
[INFO] [stdout]    |       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_point2_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intensity`
[INFO] [stdout]   --> src/closures/learnClosure.rs:41:40
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn simulated_expensive_calculation(intensity: u32){
[INFO] [stdout]    |                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expensive_result2`
[INFO] [stdout]   --> src/closures/learnClosure.rs:62:7
[INFO] [stdout]    |
[INFO] [stdout] 62 |   let expensive_result2 = expensive_calculation(intensity);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_result2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expensive_result3`
[INFO] [stdout]   --> src/closures/learnClosure.rs:63:7
[INFO] [stdout]    |
[INFO] [stdout] 63 |   let expensive_result3 = |num: u32| -> u32{
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_result3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `returns_summarizable`
[INFO] [stdout]    --> src/lessons/tryGenericTypes.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn returns_summarizable() -> impl Summary {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]  --> src/lessons/Guess.rs:2:3
[INFO] [stdout]   |
[INFO] [stdout] 2 |   value:u32,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `style`
[INFO] [stdout]  --> src/closures/learnIterator.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   style: String
[INFO] [stdout]   |   ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Shoe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/closures/learnIterator.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `commonCollection` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod commonCollection;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `common_collection`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `tryStringCollection` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub mod tryStringCollection;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_string_collection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `tryHashMapCollection` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub mod tryHashMapCollection;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_hash_map_collection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `recoverableError` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod recoverableError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `recoverable_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `tryGenericTypes` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod tryGenericTypes;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_generic_types`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `tryLifetime` should have a snake case name
[INFO] [stdout]   --> src/lessons/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub mod tryLifetime;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: convert the identifier to snake case: `try_lifetime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Rectangle` should have a snake case name
[INFO] [stdout]   --> src/lessons/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub mod Rectangle;
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `rectangle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Guess` should have a snake case name
[INFO] [stdout]   --> src/lessons/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub mod Guess;
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `guess`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `learnClosure` should have a snake case name
[INFO] [stdout]  --> src/closures/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub mod learnClosure;
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_closure`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `learnIterator` should have a snake case name
[INFO] [stdout]  --> src/closures/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod learnIterator;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryCommonCollection` should have a snake case name
[INFO] [stdout]  --> src/lessons/commonCollection.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn tryCommonCollection(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_common_collection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryUpdateString` should have a snake case name
[INFO] [stdout]  --> src/lessons/tryStringCollection.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn tryUpdateString(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_update_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryHashMap` should have a snake case name
[INFO] [stdout]  --> src/lessons/tryHashMapCollection.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn tryHashMap(){
[INFO] [stdout]   |        ^^^^^^^^^^ help: convert the identifier to snake case: `try_hash_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recoverableError` should have a snake case name
[INFO] [stdout]   --> src/lessons/recoverableError.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn recoverableError(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `recoverable_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learnIterator` should have a snake case name
[INFO] [stdout]   --> src/closures/learnIterator.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn learnIterator(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `email`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     email: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sign_in_count`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     sign_in_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `active`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     active: bool
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `point1` should have an upper case name
[INFO] [stdout]    --> src/main.rs:100:11
[INFO] [stdout]     |
[INFO] [stdout] 100 |     const point1 :Point = Point(0,0,0);
[INFO] [stdout]     |           ^^^^^^ help: convert the identifier to upper case: `POINT1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `color1` should have an upper case name
[INFO] [stdout]    --> src/main.rs:101:11
[INFO] [stdout]     |
[INFO] [stdout] 101 |     const color1 :Color = Color( 0, 0, 10);
[INFO] [stdout]     |           ^^^^^^ help: convert the identifier to upper case: `COLOR1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "dfcc0003606b4349c1f6449136355b1a0c78f48bd42be75ee254649e522c3faf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfcc0003606b4349c1f6449136355b1a0c78f48bd42be75ee254649e522c3faf", kill_on_drop: false }`
[INFO] [stdout] dfcc0003606b4349c1f6449136355b1a0c78f48bd42be75ee254649e522c3faf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b88b495fe7a81dfa0aa20c07750e311d5ade3e82a5587f16ff46645d0910ba9e
[INFO] running `Command { std: "docker" "start" "-a" "b88b495fe7a81dfa0aa20c07750e311d5ade3e82a5587f16ff46645d0910ba9e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/lessons/tryGenericTypes.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     (self.x.pow(2) +  self.y.pow(2))
[INFO] [stdout]    |     ^                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 -     (self.x.pow(2) +  self.y.pow(2))
[INFO] [stdout] 16 +     self.x.pow(2) +  self.y.pow(2)
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::lessons::Rectangle::Rectangle`
[INFO] [stdout]  --> src/adder/mod.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ::lessons::Rectangle::Rectangle;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `::lessons::Guess::Guess`
[INFO] [stdout]  --> src/adder/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ::lessons::Guess::Guess;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/closures/learnIterator.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 |     if(self.count < 6){
[INFO] [stdout]    |       ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 30 -     if(self.count < 6){
[INFO] [stdout] 30 +     if self.count < 6 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v_reference`
[INFO] [stdout]   --> src/lessons/commonCollection.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let v_reference = &v[v_index];
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_reference`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/lessons/tryStringCollection.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 |   let s2 = String::from("tac");
[INFO] [stdout]    |       ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point2`
[INFO] [stdout]   --> src/lessons/tryGenericTypes.rs:48:7
[INFO] [stdout]    |
[INFO] [stdout] 48 |   let point2 = Point{x : 10.1, y: 20.2};
[INFO] [stdout]    |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_point2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point2_2`
[INFO] [stdout]   --> src/lessons/tryGenericTypes.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |   let point2_2 = Point2{x : 20, y : 20.1};
[INFO] [stdout]    |       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_point2_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intensity`
[INFO] [stdout]   --> src/closures/learnClosure.rs:41:40
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn simulated_expensive_calculation(intensity: u32){
[INFO] [stdout]    |                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expensive_result2`
[INFO] [stdout]   --> src/closures/learnClosure.rs:62:7
[INFO] [stdout]    |
[INFO] [stdout] 62 |   let expensive_result2 = expensive_calculation(intensity);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_result2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expensive_result3`
[INFO] [stdout]   --> src/closures/learnClosure.rs:63:7
[INFO] [stdout]    |
[INFO] [stdout] 63 |   let expensive_result3 = |num: u32| -> u32{
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_result3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `returns_summarizable`
[INFO] [stdout]    --> src/lessons/tryGenericTypes.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn returns_summarizable() -> impl Summary {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]  --> src/lessons/Guess.rs:2:3
[INFO] [stdout]   |
[INFO] [stdout] 2 |   value:u32,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `style`
[INFO] [stdout]  --> src/closures/learnIterator.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   style: String
[INFO] [stdout]   |   ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Shoe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/closures/learnIterator.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `commonCollection` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod commonCollection;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `common_collection`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `tryStringCollection` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub mod tryStringCollection;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_string_collection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `tryHashMapCollection` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub mod tryHashMapCollection;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_hash_map_collection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `recoverableError` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod recoverableError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `recoverable_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `tryGenericTypes` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod tryGenericTypes;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_generic_types`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `tryLifetime` should have a snake case name
[INFO] [stdout]   --> src/lessons/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub mod tryLifetime;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: convert the identifier to snake case: `try_lifetime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Rectangle` should have a snake case name
[INFO] [stdout]   --> src/lessons/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub mod Rectangle;
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `rectangle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Guess` should have a snake case name
[INFO] [stdout]   --> src/lessons/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub mod Guess;
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `guess`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `learnClosure` should have a snake case name
[INFO] [stdout]  --> src/closures/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub mod learnClosure;
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_closure`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `learnIterator` should have a snake case name
[INFO] [stdout]  --> src/closures/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod learnIterator;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryCommonCollection` should have a snake case name
[INFO] [stdout]  --> src/lessons/commonCollection.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn tryCommonCollection(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_common_collection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryUpdateString` should have a snake case name
[INFO] [stdout]  --> src/lessons/tryStringCollection.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn tryUpdateString(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_update_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryHashMap` should have a snake case name
[INFO] [stdout]  --> src/lessons/tryHashMapCollection.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn tryHashMap(){
[INFO] [stdout]   |        ^^^^^^^^^^ help: convert the identifier to snake case: `try_hash_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recoverableError` should have a snake case name
[INFO] [stdout]   --> src/lessons/recoverableError.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn recoverableError(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `recoverable_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learnIterator` should have a snake case name
[INFO] [stdout]   --> src/closures/learnIterator.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn learnIterator(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling learnrust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `email`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     email: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sign_in_count`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     sign_in_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `active`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     active: bool
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `point1` should have an upper case name
[INFO] [stdout]    --> src/main.rs:100:11
[INFO] [stdout]     |
[INFO] [stdout] 100 |     const point1 :Point = Point(0,0,0);
[INFO] [stdout]     |           ^^^^^^ help: convert the identifier to upper case: `POINT1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `color1` should have an upper case name
[INFO] [stdout]    --> src/main.rs:101:11
[INFO] [stdout]     |
[INFO] [stdout] 101 |     const color1 :Color = Color( 0, 0, 10);
[INFO] [stdout]     |           ^^^^^^ help: convert the identifier to upper case: `COLOR1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/lessons/tryGenericTypes.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     (self.x.pow(2) +  self.y.pow(2))
[INFO] [stdout]    |     ^                              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 -     (self.x.pow(2) +  self.y.pow(2))
[INFO] [stdout] 16 +     self.x.pow(2) +  self.y.pow(2)
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/closures/learnIterator.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 |     if(self.count < 6){
[INFO] [stdout]    |       ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 30 -     if(self.count < 6){
[INFO] [stdout] 30 +     if self.count < 6 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `email`
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     email: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sign_in_count`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     sign_in_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `active`
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     active: bool
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `point1` should have an upper case name
[INFO] [stdout]    --> src/main.rs:100:11
[INFO] [stdout]     |
[INFO] [stdout] 100 |     const point1 :Point = Point(0,0,0);
[INFO] [stdout]     |           ^^^^^^ help: convert the identifier to upper case: `POINT1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `color1` should have an upper case name
[INFO] [stdout]    --> src/main.rs:101:11
[INFO] [stdout]     |
[INFO] [stdout] 101 |     const color1 :Color = Color( 0, 0, 10);
[INFO] [stdout]     |           ^^^^^^ help: convert the identifier to upper case: `COLOR1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `guess`
[INFO] [stdout]   --> src/adder/mod.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 |   let guess = Guess::new(0);
[INFO] [stdout]    |       ^^^^^ help: if this is intentional, prefix it with an underscore: `_guess`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/adder/mod.rs:74:7
[INFO] [stdout]    |
[INFO] [stdout] 74 |   let y = 10;
[INFO] [stdout]    |       ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v_reference`
[INFO] [stdout]   --> src/lessons/commonCollection.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let v_reference = &v[v_index];
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_reference`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/lessons/tryStringCollection.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 |   let s2 = String::from("tac");
[INFO] [stdout]    |       ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point2`
[INFO] [stdout]   --> src/lessons/tryGenericTypes.rs:48:7
[INFO] [stdout]    |
[INFO] [stdout] 48 |   let point2 = Point{x : 10.1, y: 20.2};
[INFO] [stdout]    |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_point2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `point2_2`
[INFO] [stdout]   --> src/lessons/tryGenericTypes.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |   let point2_2 = Point2{x : 20, y : 20.1};
[INFO] [stdout]    |       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_point2_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intensity`
[INFO] [stdout]   --> src/closures/learnClosure.rs:41:40
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn simulated_expensive_calculation(intensity: u32){
[INFO] [stdout]    |                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expensive_result2`
[INFO] [stdout]   --> src/closures/learnClosure.rs:62:7
[INFO] [stdout]    |
[INFO] [stdout] 62 |   let expensive_result2 = expensive_calculation(intensity);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_result2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expensive_result3`
[INFO] [stdout]   --> src/closures/learnClosure.rs:63:7
[INFO] [stdout]    |
[INFO] [stdout] 63 |   let expensive_result3 = |num: u32| -> u32{
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_result3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `returns_summarizable`
[INFO] [stdout]    --> src/lessons/tryGenericTypes.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn returns_summarizable() -> impl Summary {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]  --> src/lessons/Guess.rs:2:3
[INFO] [stdout]   |
[INFO] [stdout] 2 |   value:u32,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `style`
[INFO] [stdout]  --> src/closures/learnIterator.rs:4:3
[INFO] [stdout]   |
[INFO] [stdout] 4 |   style: String
[INFO] [stdout]   |   ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Shoe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/closures/learnIterator.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `commonCollection` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod commonCollection;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `common_collection`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `tryStringCollection` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub mod tryStringCollection;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_string_collection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `tryHashMapCollection` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub mod tryHashMapCollection;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_hash_map_collection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `recoverableError` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub mod recoverableError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `recoverable_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `tryGenericTypes` should have a snake case name
[INFO] [stdout]  --> src/lessons/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod tryGenericTypes;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_generic_types`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `tryLifetime` should have a snake case name
[INFO] [stdout]   --> src/lessons/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub mod tryLifetime;
[INFO] [stdout]    |         ^^^^^^^^^^^ help: convert the identifier to snake case: `try_lifetime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Rectangle` should have a snake case name
[INFO] [stdout]   --> src/lessons/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub mod Rectangle;
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to snake case: `rectangle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Guess` should have a snake case name
[INFO] [stdout]   --> src/lessons/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub mod Guess;
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `guess`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `learnClosure` should have a snake case name
[INFO] [stdout]  --> src/closures/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub mod learnClosure;
[INFO] [stdout]   |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_closure`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `learnIterator` should have a snake case name
[INFO] [stdout]  --> src/closures/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub mod learnIterator;
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryCommonCollection` should have a snake case name
[INFO] [stdout]  --> src/lessons/commonCollection.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn tryCommonCollection(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_common_collection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryUpdateString` should have a snake case name
[INFO] [stdout]  --> src/lessons/tryStringCollection.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn tryUpdateString(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_update_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `tryHashMap` should have a snake case name
[INFO] [stdout]  --> src/lessons/tryHashMapCollection.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn tryHashMap(){
[INFO] [stdout]   |        ^^^^^^^^^^ help: convert the identifier to snake case: `try_hash_map`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recoverableError` should have a snake case name
[INFO] [stdout]   --> src/lessons/recoverableError.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn recoverableError(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `recoverable_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `learnIterator` should have a snake case name
[INFO] [stdout]   --> src/closures/learnIterator.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn learnIterator(){
[INFO] [stdout]    |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 29 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "b88b495fe7a81dfa0aa20c07750e311d5ade3e82a5587f16ff46645d0910ba9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b88b495fe7a81dfa0aa20c07750e311d5ade3e82a5587f16ff46645d0910ba9e", kill_on_drop: false }`
[INFO] [stdout] b88b495fe7a81dfa0aa20c07750e311d5ade3e82a5587f16ff46645d0910ba9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f7c03bd39bbed228da6cd73aae708edee7b28ac9960bd2c640a48527d5c5e69e
[INFO] running `Command { std: "docker" "start" "-a" "f7c03bd39bbed228da6cd73aae708edee7b28ac9960bd2c640a48527d5c5e69e", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/lessons/tryGenericTypes.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     (self.x.pow(2) +  self.y.pow(2))
[INFO] [stderr]    |     ^                              ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 16 -     (self.x.pow(2) +  self.y.pow(2))
[INFO] [stderr] 16 +     self.x.pow(2) +  self.y.pow(2)
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::lessons::Rectangle::Rectangle`
[INFO] [stderr]  --> src/adder/mod.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use ::lessons::Rectangle::Rectangle;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `::lessons::Guess::Guess`
[INFO] [stderr]  --> src/adder/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ::lessons::Guess::Guess;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/closures/learnIterator.rs:30:7
[INFO] [stderr]    |
[INFO] [stderr] 30 |     if(self.count < 6){
[INFO] [stderr]    |       ^              ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 30 -     if(self.count < 6){
[INFO] [stderr] 30 +     if self.count < 6 {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v_reference`
[INFO] [stderr]   --> src/lessons/commonCollection.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let v_reference = &v[v_index];
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_reference`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s2`
[INFO] [stderr]   --> src/lessons/tryStringCollection.rs:24:7
[INFO] [stderr]    |
[INFO] [stderr] 24 |   let s2 = String::from("tac");
[INFO] [stderr]    |       ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point2`
[INFO] [stderr]   --> src/lessons/tryGenericTypes.rs:48:7
[INFO] [stderr]    |
[INFO] [stderr] 48 |   let point2 = Point{x : 10.1, y: 20.2};
[INFO] [stderr]    |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_point2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `point2_2`
[INFO] [stderr]   --> src/lessons/tryGenericTypes.rs:53:7
[INFO] [stderr]    |
[INFO] [stderr] 53 |   let point2_2 = Point2{x : 20, y : 20.1};
[INFO] [stderr]    |       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_point2_2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `intensity`
[INFO] [stderr]   --> src/closures/learnClosure.rs:41:40
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn simulated_expensive_calculation(intensity: u32){
[INFO] [stderr]    |                                        ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intensity`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expensive_result2`
[INFO] [stderr]   --> src/closures/learnClosure.rs:62:7
[INFO] [stderr]    |
[INFO] [stderr] 62 |   let expensive_result2 = expensive_calculation(intensity);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_result2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expensive_result3`
[INFO] [stderr]   --> src/closures/learnClosure.rs:63:7
[INFO] [stderr]    |
[INFO] [stderr] 63 |   let expensive_result3 = |num: u32| -> u32{
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expensive_result3`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `returns_summarizable`
[INFO] [stderr]    --> src/lessons/tryGenericTypes.rs:132:4
[INFO] [stderr]     |
[INFO] [stderr] 132 | fn returns_summarizable() -> impl Summary {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]  --> src/lessons/Guess.rs:2:3
[INFO] [stderr]   |
[INFO] [stderr] 2 |   value:u32,
[INFO] [stderr]   |   ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `style`
[INFO] [stderr]  --> src/closures/learnIterator.rs:4:3
[INFO] [stderr]   |
[INFO] [stderr] 4 |   style: String
[INFO] [stderr]   |   ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `Shoe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/closures/learnIterator.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[derive(Debug)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: module `commonCollection` should have a snake case name
[INFO] [stderr]  --> src/lessons/mod.rs:1:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub mod commonCollection;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `common_collection`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: module `tryStringCollection` should have a snake case name
[INFO] [stderr]  --> src/lessons/mod.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub mod tryStringCollection;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_string_collection`
[INFO] [stderr] 
[INFO] [stderr] warning: module `tryHashMapCollection` should have a snake case name
[INFO] [stderr]  --> src/lessons/mod.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub mod tryHashMapCollection;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_hash_map_collection`
[INFO] [stderr] 
[INFO] [stderr] warning: module `recoverableError` should have a snake case name
[INFO] [stderr]  --> src/lessons/mod.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub mod recoverableError;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `recoverable_error`
[INFO] [stderr] 
[INFO] [stderr] warning: module `tryGenericTypes` should have a snake case name
[INFO] [stderr]  --> src/lessons/mod.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub mod tryGenericTypes;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_generic_types`
[INFO] [stderr] 
[INFO] [stderr] warning: module `tryLifetime` should have a snake case name
[INFO] [stderr]   --> src/lessons/mod.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub mod tryLifetime;
[INFO] [stderr]    |         ^^^^^^^^^^^ help: convert the identifier to snake case: `try_lifetime`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Rectangle` should have a snake case name
[INFO] [stderr]   --> src/lessons/mod.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub mod Rectangle;
[INFO] [stderr]    |         ^^^^^^^^^ help: convert the identifier to snake case: `rectangle`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Guess` should have a snake case name
[INFO] [stderr]   --> src/lessons/mod.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub mod Guess;
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to snake case: `guess`
[INFO] [stderr] 
[INFO] [stderr] warning: module `learnClosure` should have a snake case name
[INFO] [stderr]  --> src/closures/mod.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub mod learnClosure;
[INFO] [stderr]   |         ^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_closure`
[INFO] [stderr] 
[INFO] [stderr] warning: module `learnIterator` should have a snake case name
[INFO] [stderr]  --> src/closures/mod.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub mod learnIterator;
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_iterator`
[INFO] [stderr] 
[INFO] [stderr] warning: function `tryCommonCollection` should have a snake case name
[INFO] [stderr]  --> src/lessons/commonCollection.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn tryCommonCollection(){
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_common_collection`
[INFO] [stderr] 
[INFO] [stderr] warning: function `tryUpdateString` should have a snake case name
[INFO] [stderr]  --> src/lessons/tryStringCollection.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn tryUpdateString(){
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `try_update_string`
[INFO] [stderr] 
[INFO] [stderr] warning: function `tryHashMap` should have a snake case name
[INFO] [stderr]  --> src/lessons/tryHashMapCollection.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn tryHashMap(){
[INFO] [stderr]   |        ^^^^^^^^^^ help: convert the identifier to snake case: `try_hash_map`
[INFO] [stderr] 
[INFO] [stderr] warning: function `recoverableError` should have a snake case name
[INFO] [stderr]   --> src/lessons/recoverableError.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn recoverableError(){
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `recoverable_error`
[INFO] [stderr] 
[INFO] [stderr] warning: function `learnIterator` should have a snake case name
[INFO] [stderr]   --> src/closures/learnIterator.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn learnIterator(){
[INFO] [stderr]    |        ^^^^^^^^^^^^^ help: convert the identifier to snake case: `learn_iterator`
[INFO] [stderr] 
[INFO] [stderr] warning: `learnrust` (lib) generated 29 warnings
[INFO] [stderr] warning: unused variable: `guess`
[INFO] [stderr]   --> src/adder/mod.rs:45:7
[INFO] [stderr]    |
[INFO] [stderr] 45 |   let guess = Guess::new(0);
[INFO] [stderr]    |       ^^^^^ help: if this is intentional, prefix it with an underscore: `_guess`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> src/adder/mod.rs:74:7
[INFO] [stderr]    |
[INFO] [stderr] 74 |   let y = 10;
[INFO] [stderr]    |       ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v_reference`
[INFO] [stderr]   --> src/lessons/commonCollection.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let v_reference = &v[v_index];
[INFO] [stderr]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_v_reference`
[INFO] [stderr] 
[INFO] [stderr] warning: `learnrust` (lib test) generated 29 warnings (26 duplicates)
[INFO] [stderr] warning: field is never read: `email`
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     email: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sign_in_count`
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     sign_in_count: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `active`
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     active: bool
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `point1` should have an upper case name
[INFO] [stderr]    --> src/main.rs:100:11
[INFO] [stderr]     |
[INFO] [stderr] 100 |     const point1 :Point = Point(0,0,0);
[INFO] [stderr]     |           ^^^^^^ help: convert the identifier to upper case: `POINT1`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `color1` should have an upper case name
[INFO] [stderr]    --> src/main.rs:101:11
[INFO] [stderr]     |
[INFO] [stderr] 101 |     const color1 :Color = Color( 0, 0, 10);
[INFO] [stderr]     |           ^^^^^^ help: convert the identifier to upper case: `COLOR1`
[INFO] [stderr] 
[INFO] [stderr] warning: `learnrust` (bin "learnrust") generated 5 warnings
[INFO] [stderr] warning: `learnrust` (bin "learnrust" test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learnrust-9b36084678aa79bf)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test adder::another ... ignored
[INFO] [stdout] test adder::it_works_using_result ... ignored
[INFO] [stdout] test adder::exploration ... ok
[INFO] [stdout] test adder::add_two_test ... ok
[INFO] [stdout] test adder::larger_can_hold_smaller ... ok
[INFO] [stdout] test adder::test_greeting_name ... ignored
[INFO] [stdout] test adder::test_guess_game ... ignored
[INFO] [stdout] test adder::test_closure ... ok
[INFO] [stdout] test adder::smaller_can_not_hold_larger ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learnrust-493329430a3088d8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-8c7a796155290b57)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test integration_it_adds_two ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests learnrust
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/lessons/tryGenericTypes.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     (self.x.pow(2) +  self.y.pow(2))
[INFO] [stderr]    |     ^                              ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 16 -     (self.x.pow(2) +  self.y.pow(2))
[INFO] [stderr] 16 +     self.x.pow(2) +  self.y.pow(2)
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> /opt/rustwide/workdir/src/closures/learnIterator.rs:30:7
[INFO] [stderr]    |
[INFO] [stderr] 30 |     if(self.count < 6){
[INFO] [stderr]    |       ^              ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 30 -     if(self.count < 6){
[INFO] [stderr] 30 +     if self.count < 6 {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/closures/learnClosure.rs - closures::learnClosure::simulated_expensive_calculation (line 36) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/closures/learnClosure.rs - closures::learnClosure::simulated_expensive_calculation (line 36) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `my_crate`
[INFO] [stdout]  --> src/closures/learnClosure.rs:39:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | assert_eq!(6, my_crate::add_one(5));
[INFO] [stdout]   |               ^^^^^^^^ use of undeclared crate or module `my_crate`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/closures/learnClosure.rs - closures::learnClosure::simulated_expensive_calculation (line 36)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "f7c03bd39bbed228da6cd73aae708edee7b28ac9960bd2c640a48527d5c5e69e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c03bd39bbed228da6cd73aae708edee7b28ac9960bd2c640a48527d5c5e69e", kill_on_drop: false }`
[INFO] [stdout] f7c03bd39bbed228da6cd73aae708edee7b28ac9960bd2c640a48527d5c5e69e