[INFO] cloning repository https://github.com/jagansai/rust_learnings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jagansai/rust_learnings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjagansai%2Frust_learnings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjagansai%2Frust_learnings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6cf98a2bdb1a7da69190fcf04fc7942adf3ee4bf
[INFO] testing jagansai/rust_learnings against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjagansai%2Frust_learnings" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jagansai/rust_learnings on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jagansai/rust_learnings
[INFO] finished tweaking git repo https://github.com/jagansai/rust_learnings
[INFO] tweaked toml for git repo https://github.com/jagansai/rust_learnings written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jagansai/rust_learnings 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.15
[INFO] [stderr]   Downloaded rand_chacha v0.9.0
[INFO] [stderr]   Downloaded rand v0.9.0
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[INFO] [stderr]   Downloaded serde_json v1.0.138
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[INFO] [stderr]   Downloaded zerocopy v0.8.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b6bcdb05fe84c138c5799fd3787129d90daa2f37ce9164c09d8614f0246eb37
[INFO] running `Command { std: "docker" "start" "-a" "6b6bcdb05fe84c138c5799fd3787129d90daa2f37ce9164c09d8614f0246eb37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b6bcdb05fe84c138c5799fd3787129d90daa2f37ce9164c09d8614f0246eb37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b6bcdb05fe84c138c5799fd3787129d90daa2f37ce9164c09d8614f0246eb37", kill_on_drop: false }`
[INFO] [stdout] 6b6bcdb05fe84c138c5799fd3787129d90daa2f37ce9164c09d8614f0246eb37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10a183a46b340b3ea3e3dd663a9afa9bff38465346e7164baa6ce6d78350a38c
[INFO] running `Command { std: "docker" "start" "-a" "10a183a46b340b3ea3e3dd663a9afa9bff38465346e7164baa6ce6d78350a38c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.15
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling zerocopy v0.8.14
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling serde_json v1.0.138
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling rand_core v0.9.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling rust_learnings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::default`
[INFO] [stdout]  --> src/main/objects/classes.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::default;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng` and `random`
[INFO] [stdout]  --> src/main/tasks/bingo.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{random, seq::SliceRandom, thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: renamed to `rng`
[INFO] [stdout]  --> src/main/tasks/bingo.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{random, seq::SliceRandom, thread_rng, Rng};
[INFO] [stdout]   |                                      ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: renamed to `rng`
[INFO] [stdout]   --> src/main/tasks/bingo.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut rng = thread_rng();
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `subtract` is never used
[INFO] [stdout]  --> src/main/functions/closures.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn subtract(x: i32, y: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `first_name` is never read
[INFO] [stdout]  --> src/main/objects/classes.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Person {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 5 |     first_name: String,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Person` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_bingo` is never used
[INFO] [stdout]  --> src/main/tasks/bingo.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn init_bingo(rows: usize, cols: usize) -> Vec<Vec<String>> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_bingo` is never used
[INFO] [stdout]   --> src/main/tasks/bingo.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn run_bingo() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_bingo` is never used
[INFO] [stdout]   --> src/main/tasks/bingo.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn print_bingo(bingo: &Vec<Vec<String>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]  --> src/main/types/tuples.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Color(i32, i32, i32);
[INFO] [stdout]   |        ----- ^^^  ^^^  ^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> src/main/types/conversions.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Number {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 7 |     value: f32
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Number` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bid` and `ask` are never read
[INFO] [stdout]   --> src/main/types/conversions.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Book {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 23 |     bid : Bid,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 24 |     ask: Ask
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Book` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.99s
[INFO] running `Command { std: "docker" "inspect" "10a183a46b340b3ea3e3dd663a9afa9bff38465346e7164baa6ce6d78350a38c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10a183a46b340b3ea3e3dd663a9afa9bff38465346e7164baa6ce6d78350a38c", kill_on_drop: false }`
[INFO] [stdout] 10a183a46b340b3ea3e3dd663a9afa9bff38465346e7164baa6ce6d78350a38c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf88df0d6d058b0ac741a169f9c918898212d53ec0003702dc2d2e2866af17e1
[INFO] running `Command { std: "docker" "start" "-a" "cf88df0d6d058b0ac741a169f9c918898212d53ec0003702dc2d2e2866af17e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_learnings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::default`
[INFO] [stdout]  --> src/main/objects/classes.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::default;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Rng` and `random`
[INFO] [stdout]  --> src/main/tasks/bingo.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{random, seq::SliceRandom, thread_rng, Rng};
[INFO] [stdout]   |            ^^^^^^                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: renamed to `rng`
[INFO] [stdout]  --> src/main/tasks/bingo.rs:5:38
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::{random, seq::SliceRandom, thread_rng, Rng};
[INFO] [stdout]   |                                      ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: renamed to `rng`
[INFO] [stdout]   --> src/main/tasks/bingo.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let mut rng = thread_rng();
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `first_name` is never read
[INFO] [stdout]  --> src/main/objects/classes.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Person {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 5 |     first_name: String,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Person` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `init_bingo` is never used
[INFO] [stdout]  --> src/main/tasks/bingo.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn init_bingo(rows: usize, cols: usize) -> Vec<Vec<String>> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run_bingo` is never used
[INFO] [stdout]   --> src/main/tasks/bingo.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn run_bingo() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_bingo` is never used
[INFO] [stdout]   --> src/main/tasks/bingo.rs:33:4
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn print_bingo(bingo: &Vec<Vec<String>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]  --> src/main/types/tuples.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Color(i32, i32, i32);
[INFO] [stdout]   |        ----- ^^^  ^^^  ^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing these fields
[INFO] [stdout]   = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]  --> src/main/types/conversions.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Number {
[INFO] [stdout]   |        ------ field in this struct
[INFO] [stdout] 7 |     value: f32
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Number` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bid` and `ask` are never read
[INFO] [stdout]   --> src/main/types/conversions.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Book {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 23 |     bid : Bid,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 24 |     ask: Ask
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Book` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "cf88df0d6d058b0ac741a169f9c918898212d53ec0003702dc2d2e2866af17e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf88df0d6d058b0ac741a169f9c918898212d53ec0003702dc2d2e2866af17e1", kill_on_drop: false }`
[INFO] [stdout] cf88df0d6d058b0ac741a169f9c918898212d53ec0003702dc2d2e2866af17e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a77473a1e0cff7f5e63791dda17d1bc678fa1f3eff2f0b4dd5c8242e1a47809d
[INFO] running `Command { std: "docker" "start" "-a" "a77473a1e0cff7f5e63791dda17d1bc678fa1f3eff2f0b4dd5c8242e1a47809d", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::default`
[INFO] [stderr]  --> src/main/objects/classes.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::default;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rng` and `random`
[INFO] [stderr]  --> src/main/tasks/bingo.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::{random, seq::SliceRandom, thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `rand::thread_rng`: renamed to `rng`
[INFO] [stderr]  --> src/main/tasks/bingo.rs:5:38
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::{random, seq::SliceRandom, thread_rng, Rng};
[INFO] [stderr]   |                                      ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `rand::thread_rng`: renamed to `rng`
[INFO] [stderr]   --> src/main/tasks/bingo.rs:17:19
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut rng = thread_rng();
[INFO] [stderr]    |                   ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `first_name` is never read
[INFO] [stderr]  --> src/main/objects/classes.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Person {
[INFO] [stderr]   |        ------ field in this struct
[INFO] [stderr] 5 |     first_name: String,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Person` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `init_bingo` is never used
[INFO] [stderr]  --> src/main/tasks/bingo.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn init_bingo(rows: usize, cols: usize) -> Vec<Vec<String>> {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `run_bingo` is never used
[INFO] [stderr]   --> src/main/tasks/bingo.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn run_bingo() {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_bingo` is never used
[INFO] [stderr]   --> src/main/tasks/bingo.rs:33:4
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn print_bingo(bingo: &Vec<Vec<String>>) {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, and `2` are never read
[INFO] [stderr]  --> src/main/types/tuples.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Color(i32, i32, i32);
[INFO] [stderr]   |        ----- ^^^  ^^^  ^^^
[INFO] [stderr]   |        |
[INFO] [stderr]   |        fields in this struct
[INFO] [stderr]   |
[INFO] [stderr]   = help: consider removing these fields
[INFO] [stderr]   = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `value` is never read
[INFO] [stderr]  --> src/main/types/conversions.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct Number {
[INFO] [stderr]   |        ------ field in this struct
[INFO] [stderr] 7 |     value: f32
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Number` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `bid` and `ask` are never read
[INFO] [stderr]   --> src/main/types/conversions.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | struct Book {
[INFO] [stderr]    |        ---- fields in this struct
[INFO] [stderr] 23 |     bid : Bid,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 24 |     ask: Ask
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Book` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_learnings` (bin "rust_learnings" test) generated 11 warnings (run `cargo fix --bin "rust_learnings" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/main/main.rs (/opt/rustwide/target/debug/deps/rust_learnings-507434e8c7442055)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test::test_add::test_add::test_add ... ok
[INFO] [stdout] test test::test_add::test_add::test_add_negative ... ok
[INFO] [stdout] test test::test_subtract::test_subtract::test_subtract ... ok
[INFO] [stdout] test test::test_subtract::test_subtract::test_subtract_negative ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a77473a1e0cff7f5e63791dda17d1bc678fa1f3eff2f0b4dd5c8242e1a47809d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a77473a1e0cff7f5e63791dda17d1bc678fa1f3eff2f0b4dd5c8242e1a47809d", kill_on_drop: false }`
[INFO] [stdout] a77473a1e0cff7f5e63791dda17d1bc678fa1f3eff2f0b4dd5c8242e1a47809d