[INFO] cloning repository https://github.com/shezu/RustPractice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shezu/RustPractice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshezu%2FRustPractice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshezu%2FRustPractice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 127fab901464c9062e079db7e6edeeec633238a3
[INFO] testing shezu/RustPractice against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshezu%2FRustPractice" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shezu/RustPractice on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shezu/RustPractice
[INFO] finished tweaking git repo https://github.com/shezu/RustPractice
[INFO] tweaked toml for git repo https://github.com/shezu/RustPractice written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/shezu/RustPractice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bc08f67f0951faef3af7262867f0f08640230c79f3e89cce4089840711ba893
[INFO] running `Command { std: "docker" "start" "-a" "3bc08f67f0951faef3af7262867f0f08640230c79f3e89cce4089840711ba893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bc08f67f0951faef3af7262867f0f08640230c79f3e89cce4089840711ba893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bc08f67f0951faef3af7262867f0f08640230c79f3e89cce4089840711ba893", kill_on_drop: false }`
[INFO] [stdout] 3bc08f67f0951faef3af7262867f0f08640230c79f3e89cce4089840711ba893
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2184ead9b54b23d94b170e6a6f7d267a32695aa008f97e2b4754087c940befd5
[INFO] running `Command { std: "docker" "start" "-a" "2184ead9b54b23d94b170e6a6f7d267a32695aa008f97e2b4754087c940befd5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling assignment_29_dec_19 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BookInformation`
[INFO] [stdout]   --> src/main.rs:18:19
[INFO] [stdout]    |
[INFO] [stdout] 18 | use traits::{Book,BookInformation};
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a_minus_b` is never read
[INFO] [stdout]   --> src/euclidean_distance.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut a_minus_b: isize = 0;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_string_characters`
[INFO] [stdout]  --> src/count_chars.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn check_string_characters(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_stars`
[INFO] [stdout]  --> src/print_stars_pattern.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn print_stars(){
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_numbers`
[INFO] [stdout]  --> src/add_up_numbers.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn add_numbers(){
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_distance_in_dates`
[INFO] [stdout]  --> src/dates.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_distance_in_dates(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Coordinates`
[INFO] [stdout]  --> src/euclidean_distance.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Coordinates {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_distance`
[INFO] [stdout]   --> src/euclidean_distance.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn get_distance() -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculate_a_minus_b`
[INFO] [stdout]   --> src/euclidean_distance.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn calculate_a_minus_b(a: isize, b: isize) -> isize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `palindrome`
[INFO] [stdout]  --> src/palindrome_checker.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn palindrome() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `repetitively`
[INFO] [stdout]  --> src/repetitive_string.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn repetitively(){
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculate_hypotenus`
[INFO] [stdout]   --> src/generics.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn calculate_hypotenus(&self) -> T{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `closures`
[INFO] [stdout]   --> src/main.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn closures(){
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.12s
[INFO] running `Command { std: "docker" "inspect" "2184ead9b54b23d94b170e6a6f7d267a32695aa008f97e2b4754087c940befd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2184ead9b54b23d94b170e6a6f7d267a32695aa008f97e2b4754087c940befd5", kill_on_drop: false }`
[INFO] [stdout] 2184ead9b54b23d94b170e6a6f7d267a32695aa008f97e2b4754087c940befd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcfd0d8acec9d360d9fd24ffdf72bbc8b0b1b868e7d6fb3e2b95e9cdc91f859e
[INFO] running `Command { std: "docker" "start" "-a" "dcfd0d8acec9d360d9fd24ffdf72bbc8b0b1b868e7d6fb3e2b95e9cdc91f859e", kill_on_drop: false }`
[INFO] [stderr]    Compiling assignment_29_dec_19 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BookInformation`
[INFO] [stdout]   --> src/main.rs:18:19
[INFO] [stdout]    |
[INFO] [stdout] 18 | use traits::{Book,BookInformation};
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `a_minus_b` is never read
[INFO] [stdout]   --> src/euclidean_distance.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let mut a_minus_b: isize = 0;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check_string_characters`
[INFO] [stdout]  --> src/count_chars.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn check_string_characters(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_stars`
[INFO] [stdout]  --> src/print_stars_pattern.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn print_stars(){
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_numbers`
[INFO] [stdout]  --> src/add_up_numbers.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn add_numbers(){
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_distance_in_dates`
[INFO] [stdout]  --> src/dates.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn get_distance_in_dates(){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Coordinates`
[INFO] [stdout]  --> src/euclidean_distance.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Coordinates {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_distance`
[INFO] [stdout]   --> src/euclidean_distance.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn get_distance() -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculate_a_minus_b`
[INFO] [stdout]   --> src/euclidean_distance.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn calculate_a_minus_b(a: isize, b: isize) -> isize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `palindrome`
[INFO] [stdout]  --> src/palindrome_checker.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn palindrome() {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `repetitively`
[INFO] [stdout]  --> src/repetitive_string.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn repetitively(){
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `calculate_hypotenus`
[INFO] [stdout]   --> src/generics.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn calculate_hypotenus(&self) -> T{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `closures`
[INFO] [stdout]   --> src/main.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn closures(){
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "dcfd0d8acec9d360d9fd24ffdf72bbc8b0b1b868e7d6fb3e2b95e9cdc91f859e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcfd0d8acec9d360d9fd24ffdf72bbc8b0b1b868e7d6fb3e2b95e9cdc91f859e", kill_on_drop: false }`
[INFO] [stdout] dcfd0d8acec9d360d9fd24ffdf72bbc8b0b1b868e7d6fb3e2b95e9cdc91f859e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4a9bb5d337268edffd00aaa3ff8b234e72b1e6b58ee20e411ed6f410d42ef0fd
[INFO] running `Command { std: "docker" "start" "-a" "4a9bb5d337268edffd00aaa3ff8b234e72b1e6b58ee20e411ed6f410d42ef0fd", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `BookInformation`
[INFO] [stderr]   --> src/main.rs:18:19
[INFO] [stderr]    |
[INFO] [stderr] 18 | use traits::{Book,BookInformation};
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `a_minus_b` is never read
[INFO] [stderr]   --> src/euclidean_distance.rs:47:17
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let mut a_minus_b: isize = 0;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check_string_characters`
[INFO] [stderr]  --> src/count_chars.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn check_string_characters(){
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_stars`
[INFO] [stderr]  --> src/print_stars_pattern.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn print_stars(){
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_numbers`
[INFO] [stderr]  --> src/add_up_numbers.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn add_numbers(){
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_distance_in_dates`
[INFO] [stderr]  --> src/dates.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn get_distance_in_dates(){
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Coordinates`
[INFO] [stderr]  --> src/euclidean_distance.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Coordinates {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_distance`
[INFO] [stderr]   --> src/euclidean_distance.rs:12:12
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn get_distance() -> f64 {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `calculate_a_minus_b`
[INFO] [stderr]   --> src/euclidean_distance.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 |     fn calculate_a_minus_b(a: isize, b: isize) -> isize {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `palindrome`
[INFO] [stderr]  --> src/palindrome_checker.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn palindrome() {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `repetitively`
[INFO] [stderr]  --> src/repetitive_string.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn repetitively(){
[INFO] [stderr]   |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `calculate_hypotenus`
[INFO] [stderr]   --> src/generics.rs:10:12
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn calculate_hypotenus(&self) -> T{
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `closures`
[INFO] [stderr]   --> src/main.rs:67:4
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn closures(){
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `assignment_29_dec_19` (bin "assignment_29_dec_19" test) generated 13 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/assignment_29_dec_19-e36b9beaa2dbc1b7)
[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] running `Command { std: "docker" "inspect" "4a9bb5d337268edffd00aaa3ff8b234e72b1e6b58ee20e411ed6f410d42ef0fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a9bb5d337268edffd00aaa3ff8b234e72b1e6b58ee20e411ed6f410d42ef0fd", kill_on_drop: false }`
[INFO] [stdout] 4a9bb5d337268edffd00aaa3ff8b234e72b1e6b58ee20e411ed6f410d42ef0fd