[INFO] fetching crate practo 0.1.0...
[INFO] testing practo-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate practo 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate practo 0.1.0
[INFO] finished tweaking crates.io crate practo 0.1.0
[INFO] tweaked toml for crates.io crate practo 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate practo 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate practo 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded array_tool v1.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8438627d3c700fb5b4a941aa02cf25e20cf02236a39b7be03c8999f14d7596ab
[INFO] running `Command { std: "docker" "start" "-a" "8438627d3c700fb5b4a941aa02cf25e20cf02236a39b7be03c8999f14d7596ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8438627d3c700fb5b4a941aa02cf25e20cf02236a39b7be03c8999f14d7596ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8438627d3c700fb5b4a941aa02cf25e20cf02236a39b7be03c8999f14d7596ab", kill_on_drop: false }`
[INFO] [stdout] 8438627d3c700fb5b4a941aa02cf25e20cf02236a39b7be03c8999f14d7596ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a843f71a523efb70740acdde9335d6bdc74a22773044137db8229b8ca17db387
[INFO] running `Command { std: "docker" "start" "-a" "a843f71a523efb70740acdde9335d6bdc74a22773044137db8229b8ca17db387", kill_on_drop: false }`
[INFO] [stderr]    Compiling array_tool v1.0.3
[INFO] [stderr]    Compiling practo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::person::Personal_info`
[INFO] [stdout]  --> src/file_2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use self::person::Personal_info;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Personal_info` should have an upper camel case name
[INFO] [stdout]  --> src/file_2.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub struct Personal_info {
[INFO] [stdout]   |                ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `PersonalInfo`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `disease` is never read
[INFO] [stdout]   --> src/enums.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let mut disease = None;
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `somebody`
[INFO] [stdout]    --> src/enums.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let somebody = Some(person1);
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_somebody`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `person2`
[INFO] [stdout]   --> src/file_2.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let person2 = person::Personal_info {
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_person2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `travel_1`
[INFO] [stdout]   --> src/file_3.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let travel_1 = travel_history::Conveyance::Car;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_travel_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `travel_2`
[INFO] [stdout]   --> src/file_3.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let travel_2 = travel_history::Conveyance::Air;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_travel_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p1`
[INFO] [stdout]   --> src/generics.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let p1 = Point { x: 5, y: 5 };
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_p1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p2`
[INFO] [stdout]   --> src/generics.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let p2 = Point { x: 7.8, y: 8.9 };
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_p2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/iterators.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut check = some_vec.iter().any(|&x| x > 2);
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `second_str`
[INFO] [stdout]   --> src/lifetimes.rs:40:40
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn some_fn<'a, 'b>(first_str: &'a str, second_str: &'b str) -> &'a str {
[INFO] [stdout]    |                                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_second_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `division` is never used
[INFO] [stdout]  --> src/closures.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn division<F: Fn(f32) -> bool>(x: f32, y: f32, f: F) {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/closures.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prints_name` is never used
[INFO] [stdout]   --> src/closures.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn prints_name(name: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prints_full_info` is never used
[INFO] [stdout]   --> src/closures.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn prints_full_info(f: fn(&str), some_one: &str, age: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/crates_io.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Conveyance` is never used
[INFO] [stdout]  --> src/enums.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Conveyance {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `travel_allowance` is never used
[INFO] [stdout]  --> src/enums.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Conveyance {
[INFO] [stdout]   | --------------- method in this implementation
[INFO] [stdout] 8 |     fn travel_allowance(&self) -> f32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Value` is never used
[INFO] [stdout]   --> src/enums.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 | enum Value {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]   --> src/enums.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Person {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square` is never used
[INFO] [stdout]   --> src/enums.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn square(num: Option<i32>) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `division` is never used
[INFO] [stdout]   --> src/enums.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn division(divident: f64, divisor: f64) -> Result<f64, String> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/enums.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `age` is never read
[INFO] [stdout]  --> src/file_2.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub struct Personal_info {
[INFO] [stdout]   |                ------------- field in this struct
[INFO] [stdout] 5 |         pub age: u8,
[INFO] [stdout]   |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Train` is never constructed
[INFO] [stdout]  --> src/file_3.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub enum Conveyance {
[INFO] [stdout]   |              ---------- variant in this enum
[INFO] [stdout] 3 |         Car,
[INFO] [stdout] 4 |         Train,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square` is never used
[INFO] [stdout]  --> src/generics.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn square<T>(x: T) -> T
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]  --> src/generics.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Point<T, U> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `printing` is never used
[INFO] [stdout]   --> src/generics.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | / impl<T, U> Point<T, U>
[INFO] [stdout] 15 | | where
[INFO] [stdout] 16 | |     T: std::fmt::Debug,
[INFO] [stdout] 17 | |     U: std::fmt::Debug,
[INFO] [stdout]    | |_______________________- method in this implementation
[INFO] [stdout] 18 |   {
[INFO] [stdout] 19 |       fn printing(&self) {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/generics.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/hashmaps.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/iterators.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]  --> src/lifetimes.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Person<'a> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/lifetimes.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_fn` is never used
[INFO] [stdout]   --> src/lifetimes.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn some_fn<'a, 'b>(first_str: &'a str, second_str: &'b str) -> &'a str {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greater` is never used
[INFO] [stdout]   --> src/lifetimes.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn greater<'a, 'b>(i: &'a i32, j: &'a i32) -> &'a i32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]  --> src/structs.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Person {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Student` is never constructed
[INFO] [stdout]  --> src/structs.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Student {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GeneralInfor` is never used
[INFO] [stdout]   --> src/structs.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | trait GeneralInfor {
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Circle` is never constructed
[INFO] [stdout]   --> src/structs.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Circle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/structs.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct Rectangle {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GeneralInfo` is never used
[INFO] [stdout]   --> src/structs.rs:51:7
[INFO] [stdout]    |
[INFO] [stdout] 51 | trait GeneralInfo {
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]   --> src/structs.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 | struct Data {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BasicStats` is never used
[INFO] [stdout]   --> src/structs.rs:85:7
[INFO] [stdout]    |
[INFO] [stdout] 85 | trait BasicStats {
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/structs.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "a843f71a523efb70740acdde9335d6bdc74a22773044137db8229b8ca17db387", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a843f71a523efb70740acdde9335d6bdc74a22773044137db8229b8ca17db387", kill_on_drop: false }`
[INFO] [stdout] a843f71a523efb70740acdde9335d6bdc74a22773044137db8229b8ca17db387
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47e7e3cec2134f16c32937ad94f43660309435ccc172d33107fa61ab7447ce94
[INFO] running `Command { std: "docker" "start" "-a" "47e7e3cec2134f16c32937ad94f43660309435ccc172d33107fa61ab7447ce94", kill_on_drop: false }`
[INFO] [stderr]    Compiling practo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::person::Personal_info`
[INFO] [stdout]  --> src/file_2.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use self::person::Personal_info;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Personal_info` should have an upper camel case name
[INFO] [stdout]  --> src/file_2.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub struct Personal_info {
[INFO] [stdout]   |                ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `PersonalInfo`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `disease` is never read
[INFO] [stdout]   --> src/enums.rs:89:13
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let mut disease = None;
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `somebody`
[INFO] [stdout]    --> src/enums.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |     let somebody = Some(person1);
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_somebody`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `person2`
[INFO] [stdout]   --> src/file_2.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let person2 = person::Personal_info {
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_person2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `travel_1`
[INFO] [stdout]   --> src/file_3.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let travel_1 = travel_history::Conveyance::Car;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_travel_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `travel_2`
[INFO] [stdout]   --> src/file_3.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let travel_2 = travel_history::Conveyance::Air;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_travel_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p1`
[INFO] [stdout]   --> src/generics.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let p1 = Point { x: 5, y: 5 };
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_p1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p2`
[INFO] [stdout]   --> src/generics.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |     let p2 = Point { x: 7.8, y: 8.9 };
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_p2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/iterators.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut check = some_vec.iter().any(|&x| x > 2);
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `second_str`
[INFO] [stdout]   --> src/lifetimes.rs:40:40
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn some_fn<'a, 'b>(first_str: &'a str, second_str: &'b str) -> &'a str {
[INFO] [stdout]    |                                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_second_str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `division` is never used
[INFO] [stdout]  --> src/closures.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn division<F: Fn(f32) -> bool>(x: f32, y: f32, f: F) {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/closures.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prints_name` is never used
[INFO] [stdout]   --> src/closures.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn prints_name(name: &str) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prints_full_info` is never used
[INFO] [stdout]   --> src/closures.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn prints_full_info(f: fn(&str), some_one: &str, age: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/crates_io.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Conveyance` is never used
[INFO] [stdout]  --> src/enums.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Conveyance {
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `travel_allowance` is never used
[INFO] [stdout]  --> src/enums.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Conveyance {
[INFO] [stdout]   | --------------- method in this implementation
[INFO] [stdout] 8 |     fn travel_allowance(&self) -> f32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Value` is never used
[INFO] [stdout]   --> src/enums.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 20 | enum Value {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]   --> src/enums.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Person {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square` is never used
[INFO] [stdout]   --> src/enums.rs:37:4
[INFO] [stdout]    |
[INFO] [stdout] 37 | fn square(num: Option<i32>) -> Option<i32> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `division` is never used
[INFO] [stdout]   --> src/enums.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn division(divident: f64, divisor: f64) -> Result<f64, String> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/enums.rs:65:4
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `age` is never read
[INFO] [stdout]  --> src/file_2.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub struct Personal_info {
[INFO] [stdout]   |                ------------- field in this struct
[INFO] [stdout] 5 |         pub age: u8,
[INFO] [stdout]   |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Train` is never constructed
[INFO] [stdout]  --> src/file_3.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub enum Conveyance {
[INFO] [stdout]   |              ---------- variant in this enum
[INFO] [stdout] 3 |         Car,
[INFO] [stdout] 4 |         Train,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `square` is never used
[INFO] [stdout]  --> src/generics.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn square<T>(x: T) -> T
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]  --> src/generics.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Point<T, U> {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `printing` is never used
[INFO] [stdout]   --> src/generics.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | / impl<T, U> Point<T, U>
[INFO] [stdout] 15 | | where
[INFO] [stdout] 16 | |     T: std::fmt::Debug,
[INFO] [stdout] 17 | |     U: std::fmt::Debug,
[INFO] [stdout]    | |_______________________- method in this implementation
[INFO] [stdout] 18 |   {
[INFO] [stdout] 19 |       fn printing(&self) {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]   --> src/generics.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/hashmaps.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/iterators.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]  --> src/lifetimes.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Person<'a> {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/lifetimes.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn main() {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `some_fn` is never used
[INFO] [stdout]   --> src/lifetimes.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn some_fn<'a, 'b>(first_str: &'a str, second_str: &'b str) -> &'a str {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greater` is never used
[INFO] [stdout]   --> src/lifetimes.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn greater<'a, 'b>(i: &'a i32, j: &'a i32) -> &'a i32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Person` is never constructed
[INFO] [stdout]  --> src/structs.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Person {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Student` is never constructed
[INFO] [stdout]  --> src/structs.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Student {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GeneralInfor` is never used
[INFO] [stdout]   --> src/structs.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | trait GeneralInfor {
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Circle` is never constructed
[INFO] [stdout]   --> src/structs.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Circle {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]   --> src/structs.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | struct Rectangle {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GeneralInfo` is never used
[INFO] [stdout]   --> src/structs.rs:51:7
[INFO] [stdout]    |
[INFO] [stdout] 51 | trait GeneralInfo {
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Data` is never constructed
[INFO] [stdout]   --> src/structs.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 | struct Data {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BasicStats` is never used
[INFO] [stdout]   --> src/structs.rs:85:7
[INFO] [stdout]    |
[INFO] [stdout] 85 | trait BasicStats {
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]    --> src/structs.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn main() {
[INFO] [stdout]     |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "47e7e3cec2134f16c32937ad94f43660309435ccc172d33107fa61ab7447ce94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47e7e3cec2134f16c32937ad94f43660309435ccc172d33107fa61ab7447ce94", kill_on_drop: false }`
[INFO] [stdout] 47e7e3cec2134f16c32937ad94f43660309435ccc172d33107fa61ab7447ce94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4d6231db310eba2ac95665b0c3f352945e671ec279033a75fbf63d398afdc4b1
[INFO] running `Command { std: "docker" "start" "-a" "4d6231db310eba2ac95665b0c3f352945e671ec279033a75fbf63d398afdc4b1", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self::person::Personal_info`
[INFO] [stderr]  --> src/file_2.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use self::person::Personal_info;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Personal_info` should have an upper camel case name
[INFO] [stderr]  --> src/file_2.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub struct Personal_info {
[INFO] [stderr]   |                ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `PersonalInfo`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `disease` is never read
[INFO] [stderr]   --> src/enums.rs:89:13
[INFO] [stderr]    |
[INFO] [stderr] 89 |     let mut disease = None;
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `somebody`
[INFO] [stderr]    --> src/enums.rs:115:9
[INFO] [stderr]     |
[INFO] [stderr] 115 |     let somebody = Some(person1);
[INFO] [stderr]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_somebody`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `person2`
[INFO] [stderr]   --> src/file_2.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let person2 = person::Personal_info {
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_person2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `travel_1`
[INFO] [stderr]   --> src/file_3.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let travel_1 = travel_history::Conveyance::Car;
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_travel_1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `travel_2`
[INFO] [stderr]   --> src/file_3.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let travel_2 = travel_history::Conveyance::Air;
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_travel_2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p1`
[INFO] [stderr]   --> src/generics.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let p1 = Point { x: 5, y: 5 };
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_p1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p2`
[INFO] [stderr]   --> src/generics.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let p2 = Point { x: 7.8, y: 8.9 };
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_p2`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/iterators.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut check = some_vec.iter().any(|&x| x > 2);
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `second_str`
[INFO] [stderr]   --> src/lifetimes.rs:40:40
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn some_fn<'a, 'b>(first_str: &'a str, second_str: &'b str) -> &'a str {
[INFO] [stderr]    |                                        ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_second_str`
[INFO] [stderr] 
[INFO] [stderr] warning: function `division` is never used
[INFO] [stderr]  --> src/closures.rs:2:4
[INFO] [stderr]   |
[INFO] [stderr] 2 | fn division<F: Fn(f32) -> bool>(x: f32, y: f32, f: F) {
[INFO] [stderr]   |    ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/closures.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn main() {
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `prints_name` is never used
[INFO] [stderr]   --> src/closures.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn prints_name(name: &str) {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `prints_full_info` is never used
[INFO] [stderr]   --> src/closures.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn prints_full_info(f: fn(&str), some_one: &str, age: i32) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/crates_io.rs:2:4
[INFO] [stderr]   |
[INFO] [stderr] 2 | fn main() {
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Conveyance` is never used
[INFO] [stderr]  --> src/enums.rs:1:6
[INFO] [stderr]   |
[INFO] [stderr] 1 | enum Conveyance {
[INFO] [stderr]   |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `travel_allowance` is never used
[INFO] [stderr]  --> src/enums.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | impl Conveyance {
[INFO] [stderr]   | --------------- method in this implementation
[INFO] [stderr] 8 |     fn travel_allowance(&self) -> f32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Value` is never used
[INFO] [stderr]   --> src/enums.rs:20:6
[INFO] [stderr]    |
[INFO] [stderr] 20 | enum Value {
[INFO] [stderr]    |      ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Person` is never constructed
[INFO] [stderr]   --> src/enums.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 | struct Person {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `square` is never used
[INFO] [stderr]   --> src/enums.rs:37:4
[INFO] [stderr]    |
[INFO] [stderr] 37 | fn square(num: Option<i32>) -> Option<i32> {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `division` is never used
[INFO] [stderr]   --> src/enums.rs:51:4
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn division(divident: f64, divisor: f64) -> Result<f64, String> {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> src/enums.rs:65:4
[INFO] [stderr]    |
[INFO] [stderr] 65 | fn main() {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `age` is never read
[INFO] [stderr]  --> src/file_2.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub struct Personal_info {
[INFO] [stderr]   |                ------------- field in this struct
[INFO] [stderr] 5 |         pub age: u8,
[INFO] [stderr]   |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Train` is never constructed
[INFO] [stderr]  --> src/file_3.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     pub enum Conveyance {
[INFO] [stderr]   |              ---------- variant in this enum
[INFO] [stderr] 3 |         Car,
[INFO] [stderr] 4 |         Train,
[INFO] [stderr]   |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `square` is never used
[INFO] [stderr]  --> src/generics.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn square<T>(x: T) -> T
[INFO] [stderr]   |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Point` is never constructed
[INFO] [stderr]  --> src/generics.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Point<T, U> {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `printing` is never used
[INFO] [stderr]   --> src/generics.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | / impl<T, U> Point<T, U>
[INFO] [stderr] 15 | | where
[INFO] [stderr] 16 | |     T: std::fmt::Debug,
[INFO] [stderr] 17 | |     U: std::fmt::Debug,
[INFO] [stderr]    | |_______________________- method in this implementation
[INFO] [stderr] 18 |   {
[INFO] [stderr] 19 |       fn printing(&self) {
[INFO] [stderr]    |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]   --> src/generics.rs:26:4
[INFO] [stderr]    |
[INFO] [stderr] 26 | fn main() {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/hashmaps.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn main() {
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/iterators.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn main() {
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Person` is never constructed
[INFO] [stderr]  --> src/lifetimes.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Person<'a> {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]  --> src/lifetimes.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn main() {
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `some_fn` is never used
[INFO] [stderr]   --> src/lifetimes.rs:40:4
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn some_fn<'a, 'b>(first_str: &'a str, second_str: &'b str) -> &'a str {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `greater` is never used
[INFO] [stderr]   --> src/lifetimes.rs:44:4
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn greater<'a, 'b>(i: &'a i32, j: &'a i32) -> &'a i32 {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Person` is never constructed
[INFO] [stderr]  --> src/structs.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Person {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Student` is never constructed
[INFO] [stderr]  --> src/structs.rs:9:8
[INFO] [stderr]   |
[INFO] [stderr] 9 | struct Student {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `GeneralInfor` is never used
[INFO] [stderr]   --> src/structs.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 | trait GeneralInfor {
[INFO] [stderr]    |       ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Circle` is never constructed
[INFO] [stderr]   --> src/structs.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 | struct Circle {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Rectangle` is never constructed
[INFO] [stderr]   --> src/structs.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 | struct Rectangle {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `GeneralInfo` is never used
[INFO] [stderr]   --> src/structs.rs:51:7
[INFO] [stderr]    |
[INFO] [stderr] 51 | trait GeneralInfo {
[INFO] [stderr]    |       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Data` is never constructed
[INFO] [stderr]   --> src/structs.rs:81:8
[INFO] [stderr]    |
[INFO] [stderr] 81 | struct Data {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `BasicStats` is never used
[INFO] [stderr]   --> src/structs.rs:85:7
[INFO] [stderr]    |
[INFO] [stderr] 85 | trait BasicStats {
[INFO] [stderr]    |       ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `main` is never used
[INFO] [stderr]    --> src/structs.rs:111:4
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn main() {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `practo` (bin "practo" test) generated 44 warnings (run `cargo fix --bin "practo" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/practo-6acf56782e149d24)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/practo-1abd5b654bd40552)
[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]    Doc-tests practo
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - square (line 9) ... ok
[INFO] [stdout] test src/lib.rs - cube (line 30) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - cube (line 30) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' panicked at src/lib.rs:7:1:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 125
[INFO] [stdout]  right: 25
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5de8e0af62d2 - std::backtrace_rs::backtrace::libunwind::trace::h2d45396358f41939
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5de8e0af62d2 - std::backtrace_rs::backtrace::trace_unsynchronized::hffcefc0b67f1d6e2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5de8e0af62d2 - std::sys::backtrace::_print_fmt::hd72f71d23b436b92
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5de8e0af62d2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hdcfcb6d4c8489523
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5de8e0b11943 - core::fmt::rt::Argument::fmt::h2c56b3114963061a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5de8e0b11943 - core::fmt::write::h8a494366950f23bb
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x5de8e0af3fe3 - std::io::default_write_fmt::ha27fbccbc65eb6fa
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5de8e0af3fe3 - std::io::Write::write_fmt::h6556609fca33d0b1
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5de8e0af6122 - std::sys::backtrace::BacktraceLock::print::hb2a626a81e06b2dc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5de8e0af71b3 - std::panicking::default_hook::{{closure}}::h4f78485264f12d10
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x5de8e0af6f95 - std::panicking::default_hook::h2c66fc99e962531d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:327:9
[INFO] [stdout]   11:     0x5de8e0af7a85 - std::panicking::rust_panic_with_hook::h33ac55f64bbd807d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:833:13
[INFO] [stdout]   12:     0x5de8e0af791a - std::panicking::begin_panic_handler::{{closure}}::h30e7cb89678a57fe
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:706:13
[INFO] [stdout]   13:     0x5de8e0af67c9 - std::sys::backtrace::__rust_end_short_backtrace::hed60f27456c16ced
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x5de8e0af75ad - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697:5
[INFO] [stdout]   15:     0x5de8e0b10e30 - core::panicking::panic_fmt::h62f63d096dd276af
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:75:14
[INFO] [stdout]   16:     0x5de8e0b110b7 - core::panicking::assert_failed_inner::h102b4539a88470c2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:448:17
[INFO] [stdout]   17:     0x5de8e0ae344c - core::panicking::assert_failed::h34230adf88934ee5
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:403:5
[INFO] [stdout]   18:     0x5de8e0ad5dc8 - rust_out::main::_doctest_main_src_lib_rs_30_0::h40b6b49d2293b99f
[INFO] [stdout]   19:     0x5de8e0ad5d76 - rust_out::main::h2d10ba762d3f8adf
[INFO] [stdout]   20:     0x5de8e0ad5d13 - core::ops::function::FnOnce::call_once::h89333dd4ac8e03fc
[INFO] [stdout]   21:     0x5de8e0ad5cf6 - std::sys::backtrace::__rust_begin_short_backtrace::h8a10de1e92516da1
[INFO] [stdout]   22:     0x5de8e0ad5cd9 - std::rt::lang_start::{{closure}}::h0af3a8cb06b34c3e
[INFO] [stdout]   23:     0x5de8e0af1f30 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h638295a043b40957
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:290:21
[INFO] [stdout]   24:     0x5de8e0af1f30 - std::panicking::catch_unwind::do_call::hbd68098bdea1ca50
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   25:     0x5de8e0af1f30 - std::panicking::catch_unwind::h50591d85bf847c7c
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   26:     0x5de8e0af1f30 - std::panic::catch_unwind::h2487b4c4f2ae22c6
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   27:     0x5de8e0af1f30 - std::rt::lang_start_internal::{{closure}}::h61f0945cc6c9a811
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:175:24
[INFO] [stdout]   28:     0x5de8e0af1f30 - std::panicking::catch_unwind::do_call::h34b9c3722acd6bd1
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x5de8e0af1f30 - std::panicking::catch_unwind::hf9a822ea043fb0d6
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x5de8e0af1f30 - std::panic::catch_unwind::h5b3cac802237ed89
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5de8e0af1f30 - std::rt::lang_start_internal::h34f9328d113fd60a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/rt.rs:171:5
[INFO] [stdout]   32:     0x5de8e0ad5cc1 - std::rt::lang_start::h8f736fe0a226e45f
[INFO] [stdout]   33:     0x5de8e0ad5de5 - main
[INFO] [stdout]   34:     0x7616737e61ca - <unknown>
[INFO] [stdout]   35:     0x7616737e628b - __libc_start_main
[INFO] [stdout]   36:     0x5de8e0ad5bd5 - _start
[INFO] [stdout]   37:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - cube (line 30)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "4d6231db310eba2ac95665b0c3f352945e671ec279033a75fbf63d398afdc4b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d6231db310eba2ac95665b0c3f352945e671ec279033a75fbf63d398afdc4b1", kill_on_drop: false }`
[INFO] [stdout] 4d6231db310eba2ac95665b0c3f352945e671ec279033a75fbf63d398afdc4b1