[INFO] fetching crate practo 0.1.0...
[INFO] testing practo-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate practo 0.1.0 into /workspace/builds/worker-3-tc2/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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate practo 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 722e39af73870cbb9e592eb39f88081441a687ed46eb567df719016544b52112
[INFO] running `Command { std: "docker" "start" "-a" "722e39af73870cbb9e592eb39f88081441a687ed46eb567df719016544b52112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "722e39af73870cbb9e592eb39f88081441a687ed46eb567df719016544b52112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "722e39af73870cbb9e592eb39f88081441a687ed46eb567df719016544b52112", kill_on_drop: false }`
[INFO] [stdout] 722e39af73870cbb9e592eb39f88081441a687ed46eb567df719016544b52112
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd7be62d35db3a068cfd2e5e0e278821bf213a6498f61542b1da6eca12dce3bb
[INFO] running `Command { std: "docker" "start" "-a" "dd7be62d35db3a068cfd2e5e0e278821bf213a6498f61542b1da6eca12dce3bb", 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(nonstandard_style)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `mandes` is assigned to, but never used
[INFO] [stdout]   --> src/lifetimes.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut mandes = Person {
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_mandes` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mandes` is never read
[INFO] [stdout]   --> src/lifetimes.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         mandes.name = &last_name;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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 0.75s
[INFO] running `Command { std: "docker" "inspect" "dd7be62d35db3a068cfd2e5e0e278821bf213a6498f61542b1da6eca12dce3bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7be62d35db3a068cfd2e5e0e278821bf213a6498f61542b1da6eca12dce3bb", kill_on_drop: false }`
[INFO] [stdout] dd7be62d35db3a068cfd2e5e0e278821bf213a6498f61542b1da6eca12dce3bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f44ecd0e2d45feedcc1128d58ea8d4d98e6a7b74d6e96129e061b31c5cc4946
[INFO] running `Command { std: "docker" "start" "-a" "0f44ecd0e2d45feedcc1128d58ea8d4d98e6a7b74d6e96129e061b31c5cc4946", 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(nonstandard_style)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `mandes` is assigned to, but never used
[INFO] [stdout]   --> src/lifetimes.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut mandes = Person {
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_mandes` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `mandes` is never read
[INFO] [stdout]   --> src/lifetimes.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         mandes.name = &last_name;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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 0.34s
[INFO] running `Command { std: "docker" "inspect" "0f44ecd0e2d45feedcc1128d58ea8d4d98e6a7b74d6e96129e061b31c5cc4946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f44ecd0e2d45feedcc1128d58ea8d4d98e6a7b74d6e96129e061b31c5cc4946", kill_on_drop: false }`
[INFO] [stdout] 0f44ecd0e2d45feedcc1128d58ea8d4d98e6a7b74d6e96129e061b31c5cc4946
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b2716f51d35a0058a5ec3144f3a85fa3ad292eceaac19c6982aab76bf48950d
[INFO] running `Command { std: "docker" "start" "-a" "6b2716f51d35a0058a5ec3144f3a85fa3ad292eceaac19c6982aab76bf48950d", 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(nonstandard_style)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `mandes` is assigned to, but never used
[INFO] [stderr]   --> src/lifetimes.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut mandes = Person {
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_mandes` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `mandes` is never read
[INFO] [stderr]   --> src/lifetimes.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         mandes.name = &last_name;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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 45 warnings (run `cargo fix --bin "practo" -p practo --tests` to apply 9 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/practo-ba0b30a8eae66cf5)
[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-9139a855dde50a6b)
[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' (85) 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:     0x56b13ace7362 - std::backtrace_rs::backtrace::libunwind::trace::h16acf28769fcd909
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x56b13ace7362 - std::backtrace_rs::backtrace::trace_unsynchronized::hb5541aa5d4f92513
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x56b13ace7362 - std::sys::backtrace::_print_fmt::h8ac8268cb667a306
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x56b13ace7362 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h47627beda0767f4c
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x56b13acf5f5f - core::fmt::rt::Argument::fmt::h686a01ad57c1c92a
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x56b13acf5f5f - core::fmt::write::h8a63064c67176fd8
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x56b13acc5f23 - std::io::default_write_fmt::hc257f38f86d39af6
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x56b13acc5f23 - std::io::Write::write_fmt::h5e9b646cef91150b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x56b13accaf82 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x56b13accc7ac - std::panicking::default_hook::{{closure}}::h23e0299d4738b766
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x56b13accc606 - std::panicking::default_hook::hfeec6294e8751b62
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:328:9
[INFO] [stdout]   11:     0x56b13acccd85 - std::panicking::panic_with_hook::hd57cd463d793ed79
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:834:13
[INFO] [stdout]   12:     0x56b13acccc1a - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:707:13
[INFO] [stdout]   13:     0x56b13accb0b9 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x56b13acbabcd - __rustc[256c90bb7e548b45]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:698:5
[INFO] [stdout]   15:     0x56b13acf8eb0 - core::panicking::panic_fmt::hf19c198748ef6a95
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x56b13acf8d53 - core::panicking::assert_failed_inner::h709867d03648810d
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:444:17
[INFO] [stdout]   17:     0x56b13acda40c - core::panicking::assert_failed::haf8e58ce4332e9e4
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:399:5
[INFO] [stdout]   18:     0x56b13acba898 - rust_out::main::_doctest_main_src_lib_rs_30_0::h7d2ea3f0fed5ecb1
[INFO] [stdout]   19:     0x56b13acba846 - rust_out::main::he986860d8b7bc94f
[INFO] [stdout]   20:     0x56b13acba7e3 - core::ops::function::FnOnce::call_once::hd0f888ea33950d2d
[INFO] [stdout]   21:     0x56b13acba7c6 - std::sys::backtrace::__rust_begin_short_backtrace::h70a8cfcb1f800bff
[INFO] [stdout]   22:     0x56b13acba7a9 - std::rt::lang_start::{{closure}}::h03ca8d00642774ee
[INFO] [stdout]   23:     0x56b13acc6fe0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hdf957eac011d0136
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   24:     0x56b13acc6fe0 - std::panicking::catch_unwind::do_call::h9ff550f7799115e1
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stdout]   25:     0x56b13acc6fe0 - std::panicking::catch_unwind::ha7ce46787bb12905
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stdout]   26:     0x56b13acc6fe0 - std::panic::catch_unwind::h625b36596def7d39
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stdout]   27:     0x56b13acc6fe0 - std::rt::lang_start_internal::{{closure}}::h4cbc9430de699e2c
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:175:24
[INFO] [stdout]   28:     0x56b13acc6fe0 - std::panicking::catch_unwind::do_call::h5af2f11409a22e3e
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x56b13acc6fe0 - std::panicking::catch_unwind::hf64cf7b0d8070f52
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x56b13acc6fe0 - std::panic::catch_unwind::h480b74763390cdcf
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x56b13acc6fe0 - std::rt::lang_start_internal::h4b3d04f698aef094
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:171:5
[INFO] [stdout]   32:     0x56b13acba791 - std::rt::lang_start::h457230af78cce7e7
[INFO] [stdout]   33:     0x56b13acba8b5 - main
[INFO] [stdout]   34:     0x78a83f3ad1ca - <unknown>
[INFO] [stdout]   35:     0x78a83f3ad28b - __libc_start_main
[INFO] [stdout]   36:     0x56b13acba6a5 - _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 0.25s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6b2716f51d35a0058a5ec3144f3a85fa3ad292eceaac19c6982aab76bf48950d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b2716f51d35a0058a5ec3144f3a85fa3ad292eceaac19c6982aab76bf48950d", kill_on_drop: false }`
[INFO] [stdout] 6b2716f51d35a0058a5ec3144f3a85fa3ad292eceaac19c6982aab76bf48950d
