[INFO] updating cached repository https://github.com/syedumar18/Calculator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e1d31b7f1c02fed01f915a83448ac91ca7c3652
[INFO] testing syedumar18/Calculator against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyedumar18%2FCalculator" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/syedumar18/Calculator on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/syedumar18/Calculator
[INFO] finished tweaking git repo https://github.com/syedumar18/Calculator
[INFO] tweaked toml for git repo https://github.com/syedumar18/Calculator written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/syedumar18/Calculator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 580aa39541b746192d5fb1ee6fce7c31cf27f128bc01e302bbcdc30adf8997e2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "580aa39541b746192d5fb1ee6fce7c31cf27f128bc01e302bbcdc30adf8997e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "580aa39541b746192d5fb1ee6fce7c31cf27f128bc01e302bbcdc30adf8997e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "580aa39541b746192d5fb1ee6fce7c31cf27f128bc01e302bbcdc30adf8997e2", kill_on_drop: false }`
[INFO] [stdout] 580aa39541b746192d5fb1ee6fce7c31cf27f128bc01e302bbcdc30adf8997e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d9508eecff8a7b3eaf750df6e0520ff9a29650e3b07d9f46c4043430f8c4c24
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6d9508eecff8a7b3eaf750df6e0520ff9a29650e3b07d9f46c4043430f8c4c24", kill_on_drop: false }`
[INFO] [stderr]    Compiling Calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `Add`
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |         pub fn Add(){
[INFO] [stdout]   |                ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `Subtract`
[INFO] [stdout]   --> src/lib.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |         pub fn Subtract(){
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `Multiplication`
[INFO] [stdout]   --> src/lib.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |         pub fn Multiplication(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `Divide`
[INFO] [stdout]   --> src/lib.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 46 |         pub fn Divide(){
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `square_function`
[INFO] [stdout]   --> src/lib.rs:63:16
[INFO] [stdout]    |
[INFO] [stdout] 63 |         pub fn square_function(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cube_function`
[INFO] [stdout]   --> src/lib.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |         pub fn cube_function(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `power_functions`
[INFO] [stdout]   --> src/lib.rs:85:16
[INFO] [stdout]    |
[INFO] [stdout] 85 |         pub fn power_functions(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Calculator` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `calculator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Calculator` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod Calculator{
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Calculator_functions` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     mod Calculator_functions{
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculator_functions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Power_functions` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     mod Power_functions{
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `power_functions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Add` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |         pub fn Add(){
[INFO] [stdout]   |                ^^^ help: convert the identifier to snake case: `add`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/lib.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |             io::stdin().read_line(&mut x);
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Subtract` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |         pub fn Subtract(){
[INFO] [stdout]    |                ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `subtract`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Multiplication` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |         pub fn Multiplication(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `multiplication`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Divide` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 46 |         pub fn Divide(){
[INFO] [stdout]    |                ^^^^^^ help: convert the identifier to snake case: `divide`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "6d9508eecff8a7b3eaf750df6e0520ff9a29650e3b07d9f46c4043430f8c4c24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d9508eecff8a7b3eaf750df6e0520ff9a29650e3b07d9f46c4043430f8c4c24", kill_on_drop: false }`
[INFO] [stdout] 6d9508eecff8a7b3eaf750df6e0520ff9a29650e3b07d9f46c4043430f8c4c24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 705601b5ec8e795c875cf7d8cd0097bc03f1c7a4e1f7fb1f2ea177de24472e59
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "705601b5ec8e795c875cf7d8cd0097bc03f1c7a4e1f7fb1f2ea177de24472e59", kill_on_drop: false }`
[INFO] [stdout] warning: function is never used: `Add`
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |         pub fn Add(){
[INFO] [stdout]   |                ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling Calculator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `Subtract`
[INFO] [stdout]   --> src/lib.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |         pub fn Subtract(){
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `Multiplication`
[INFO] [stdout]   --> src/lib.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |         pub fn Multiplication(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `Divide`
[INFO] [stdout]   --> src/lib.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 46 |         pub fn Divide(){
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `square_function`
[INFO] [stdout]   --> src/lib.rs:63:16
[INFO] [stdout]    |
[INFO] [stdout] 63 |         pub fn square_function(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cube_function`
[INFO] [stdout]   --> src/lib.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |         pub fn cube_function(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `power_functions`
[INFO] [stdout]   --> src/lib.rs:85:16
[INFO] [stdout]    |
[INFO] [stdout] 85 |         pub fn power_functions(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Calculator` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `calculator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Calculator` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod Calculator{
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Calculator_functions` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     mod Calculator_functions{
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculator_functions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Power_functions` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     mod Power_functions{
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `power_functions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Add` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |         pub fn Add(){
[INFO] [stdout]   |                ^^^ help: convert the identifier to snake case: `add`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/lib.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |             io::stdin().read_line(&mut x);
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Subtract` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |         pub fn Subtract(){
[INFO] [stdout]    |                ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `subtract`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Multiplication` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |         pub fn Multiplication(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `multiplication`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Divide` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 46 |         pub fn Divide(){
[INFO] [stdout]    |                ^^^^^^ help: convert the identifier to snake case: `divide`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `Add`
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |         pub fn Add(){
[INFO] [stdout]   |                ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `Subtract`
[INFO] [stdout]   --> src/lib.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |         pub fn Subtract(){
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `Multiplication`
[INFO] [stdout]   --> src/lib.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |         pub fn Multiplication(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `Divide`
[INFO] [stdout]   --> src/lib.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 46 |         pub fn Divide(){
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `square_function`
[INFO] [stdout]   --> src/lib.rs:63:16
[INFO] [stdout]    |
[INFO] [stdout] 63 |         pub fn square_function(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `cube_function`
[INFO] [stdout]   --> src/lib.rs:74:16
[INFO] [stdout]    |
[INFO] [stdout] 74 |         pub fn cube_function(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `power_functions`
[INFO] [stdout]   --> src/lib.rs:85:16
[INFO] [stdout]    |
[INFO] [stdout] 85 |         pub fn power_functions(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Calculator` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `calculator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Calculator` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod Calculator{
[INFO] [stdout]   |     ^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Calculator_functions` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     mod Calculator_functions{
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculator_functions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Power_functions` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     mod Power_functions{
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `power_functions`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Add` should have a snake case name
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 |         pub fn Add(){
[INFO] [stdout]   |                ^^^ help: convert the identifier to snake case: `add`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/lib.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |             io::stdin().read_line(&mut x);
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Subtract` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 |         pub fn Subtract(){
[INFO] [stdout]    |                ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `subtract`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:21:13
[INFO] [stdout]    |
[INFO] [stdout] 21 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Multiplication` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |         pub fn Multiplication(){
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `multiplication`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Divide` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 46 |         pub fn Divide(){
[INFO] [stdout]    |                ^^^^^^ help: convert the identifier to snake case: `divide`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:66:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:88:13
[INFO] [stdout]    |
[INFO] [stdout] 88 |             io::stdin().read_line(&mut x);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             io::stdin().read_line(&mut y);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "705601b5ec8e795c875cf7d8cd0097bc03f1c7a4e1f7fb1f2ea177de24472e59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "705601b5ec8e795c875cf7d8cd0097bc03f1c7a4e1f7fb1f2ea177de24472e59", kill_on_drop: false }`
[INFO] [stdout] 705601b5ec8e795c875cf7d8cd0097bc03f1c7a4e1f7fb1f2ea177de24472e59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b947a0946c2fcf4306d706f11ca0f975fbca3cbf9859c71a7a65f10119faae36
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b947a0946c2fcf4306d706f11ca0f975fbca3cbf9859c71a7a65f10119faae36", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `Add`
[INFO] [stderr]  --> src/lib.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 |         pub fn Add(){
[INFO] [stderr]   |                ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `Subtract`
[INFO] [stderr]   --> src/lib.rs:18:16
[INFO] [stderr]    |
[INFO] [stderr] 18 |         pub fn Subtract(){
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `Multiplication`
[INFO] [stderr]   --> src/lib.rs:32:16
[INFO] [stderr]    |
[INFO] [stderr] 32 |         pub fn Multiplication(){
[INFO] [stderr]    |                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `Divide`
[INFO] [stderr]   --> src/lib.rs:46:16
[INFO] [stderr]    |
[INFO] [stderr] 46 |         pub fn Divide(){
[INFO] [stderr]    |                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `square_function`
[INFO] [stderr]   --> src/lib.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |         pub fn square_function(){
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cube_function`
[INFO] [stderr]   --> src/lib.rs:74:16
[INFO] [stderr]    |
[INFO] [stderr] 74 |         pub fn cube_function(){
[INFO] [stderr]    |                ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `power_functions`
[INFO] [stderr]   --> src/lib.rs:85:16
[INFO] [stderr]    |
[INFO] [stderr] 85 |         pub fn power_functions(){
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Calculator` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `calculator`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Calculator` should have a snake case name
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod Calculator{
[INFO] [stderr]   |     ^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculator`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Calculator_functions` should have a snake case name
[INFO] [stderr]  --> src/lib.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     mod Calculator_functions{
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculator_functions`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Power_functions` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     mod Power_functions{
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `power_functions`
[INFO] [stderr] 
[INFO] [stderr] warning: function `Add` should have a snake case name
[INFO] [stderr]  --> src/lib.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 |         pub fn Add(){
[INFO] [stderr]   |                ^^^ help: convert the identifier to snake case: `add`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/lib.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 |             io::stdin().read_line(&mut x);
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |             io::stdin().read_line(&mut y);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: function `Subtract` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:18:16
[INFO] [stderr]    |
[INFO] [stderr] 18 |         pub fn Subtract(){
[INFO] [stderr]    |                ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `subtract`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |             io::stdin().read_line(&mut x);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |             io::stdin().read_line(&mut y);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: function `Multiplication` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:32:16
[INFO] [stderr]    |
[INFO] [stderr] 32 |         pub fn Multiplication(){
[INFO] [stderr]    |                ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `multiplication`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |             io::stdin().read_line(&mut x);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |             io::stdin().read_line(&mut y);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: function `Divide` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:46:16
[INFO] [stderr]    |
[INFO] [stderr] 46 |         pub fn Divide(){
[INFO] [stderr]    |                ^^^^^^ help: convert the identifier to snake case: `divide`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |             io::stdin().read_line(&mut x);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |             io::stdin().read_line(&mut y);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             io::stdin().read_line(&mut x);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |             io::stdin().read_line(&mut x);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |             io::stdin().read_line(&mut x);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:93:13
[INFO] [stderr]    |
[INFO] [stderr] 93 |             io::stdin().read_line(&mut y);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 27 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `Add`
[INFO] [stderr]  --> src/lib.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 |         pub fn Add(){
[INFO] [stderr]   |                ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `Subtract`
[INFO] [stderr]   --> src/lib.rs:18:16
[INFO] [stderr]    |
[INFO] [stderr] 18 |         pub fn Subtract(){
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `Multiplication`
[INFO] [stderr]   --> src/lib.rs:32:16
[INFO] [stderr]    |
[INFO] [stderr] 32 |         pub fn Multiplication(){
[INFO] [stderr]    |                ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `Divide`
[INFO] [stderr]   --> src/lib.rs:46:16
[INFO] [stderr]    |
[INFO] [stderr] 46 |         pub fn Divide(){
[INFO] [stderr]    |                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `square_function`
[INFO] [stderr]   --> src/lib.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |         pub fn square_function(){
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cube_function`
[INFO] [stderr]   --> src/lib.rs:74:16
[INFO] [stderr]    |
[INFO] [stderr] 74 |         pub fn cube_function(){
[INFO] [stderr]    |                ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `power_functions`
[INFO] [stderr]   --> src/lib.rs:85:16
[INFO] [stderr]    |
[INFO] [stderr] 85 |         pub fn power_functions(){
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Calculator` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `calculator`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Calculator` should have a snake case name
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod Calculator{
[INFO] [stderr]   |     ^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculator`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Calculator_functions` should have a snake case name
[INFO] [stderr]  --> src/lib.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     mod Calculator_functions{
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `calculator_functions`
[INFO] [stderr] 
[INFO] [stderr] warning: module `Power_functions` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     mod Power_functions{
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `power_functions`
[INFO] [stderr] 
[INFO] [stderr] warning: function `Add` should have a snake case name
[INFO] [stderr]  --> src/lib.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 |         pub fn Add(){
[INFO] [stderr]   |                ^^^ help: convert the identifier to snake case: `add`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/lib.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 |             io::stdin().read_line(&mut x);
[INFO] [stderr]   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |             io::stdin().read_line(&mut y);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: function `Subtract` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:18:16
[INFO] [stderr]    |
[INFO] [stderr] 18 |         pub fn Subtract(){
[INFO] [stderr]    |                ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `subtract`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:21:13
[INFO] [stderr]    |
[INFO] [stderr] 21 |             io::stdin().read_line(&mut x);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |             io::stdin().read_line(&mut y);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: function `Multiplication` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:32:16
[INFO] [stderr]    |
[INFO] [stderr] 32 |         pub fn Multiplication(){
[INFO] [stderr]    |                ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `multiplication`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |             io::stdin().read_line(&mut x);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |             io::stdin().read_line(&mut y);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: function `Divide` should have a snake case name
[INFO] [stderr]   --> src/lib.rs:46:16
[INFO] [stderr]    |
[INFO] [stderr] 46 |         pub fn Divide(){
[INFO] [stderr]    |                ^^^^^^ help: convert the identifier to snake case: `divide`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |             io::stdin().read_line(&mut x);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |             io::stdin().read_line(&mut y);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             io::stdin().read_line(&mut x);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |             io::stdin().read_line(&mut x);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 |             io::stdin().read_line(&mut x);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:93:13
[INFO] [stderr]    |
[INFO] [stderr] 93 |             io::stdin().read_line(&mut y);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 27 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/Calculator-df30b9f409dd7548
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests Calculator
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b947a0946c2fcf4306d706f11ca0f975fbca3cbf9859c71a7a65f10119faae36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b947a0946c2fcf4306d706f11ca0f975fbca3cbf9859c71a7a65f10119faae36", kill_on_drop: false }`
[INFO] [stdout] b947a0946c2fcf4306d706f11ca0f975fbca3cbf9859c71a7a65f10119faae36