[INFO] cloning repository https://github.com/wdcs-hemanthBhushan/Rust_game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wdcs-hemanthBhushan/Rust_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwdcs-hemanthBhushan%2FRust_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwdcs-hemanthBhushan%2FRust_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce28c794296dd0e52150fc59d5df4543ac16a9e7
[INFO] checking wdcs-hemanthBhushan/Rust_game against master#f21fbac535ab2c3bc50db20547f4d48477357103 for pr-143193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwdcs-hemanthBhushan%2FRust_game" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wdcs-hemanthBhushan/Rust_game
[INFO] finished tweaking git repo https://github.com/wdcs-hemanthBhushan/Rust_game
[INFO] tweaked toml for git repo https://github.com/wdcs-hemanthBhushan/Rust_game written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wdcs-hemanthBhushan/Rust_game on toolchain f21fbac535ab2c3bc50db20547f4d48477357103
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wdcs-hemanthBhushan/Rust_game 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" "+f21fbac535ab2c3bc50db20547f4d48477357103" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de8537402dec7582196d09c1ee990669efabcb5872bd7d82de02b38a35b446aa
[INFO] running `Command { std: "docker" "start" "-a" "de8537402dec7582196d09c1ee990669efabcb5872bd7d82de02b38a35b446aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de8537402dec7582196d09c1ee990669efabcb5872bd7d82de02b38a35b446aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de8537402dec7582196d09c1ee990669efabcb5872bd7d82de02b38a35b446aa", kill_on_drop: false }`
[INFO] [stdout] de8537402dec7582196d09c1ee990669efabcb5872bd7d82de02b38a35b446aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+f21fbac535ab2c3bc50db20547f4d48477357103" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f835bd181f14bdfd0f65a97506cbb2c5d02a30ecc724ae7c8a01b00c16e1bd4
[INFO] running `Command { std: "docker" "start" "-a" "8f835bd181f14bdfd0f65a97506cbb2c5d02a30ecc724ae7c8a01b00c16e1bd4", kill_on_drop: false }`
[INFO] [stderr]     Checking Rust_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `Rust_game` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_game`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/main.rs:70:22
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn discount<T, U, V>(item: &impl PrintDetails<T, U, V>, percentage: f64) -> f64 {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `percentage`
[INFO] [stdout]   --> src/main.rs:70:57
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn discount<T, U, V>(item: &impl PrintDetails<T, U, V>, percentage: f64) -> f64 {
[INFO] [stdout]    |                                                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_percentage`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `author`, `edition`, and `price` are never read
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Book<T, U, V> {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 13 |     title: T,
[INFO] [stdout] 14 |     author: T,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 15 |     edition: U,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 16 |     price: V,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `show_details` is never used
[INFO] [stdout]   --> src/main.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | trait PrintDetails<T, U, V> {
[INFO] [stdout]    |       ------------ method in this trait
[INFO] [stdout] 43 |     fn new(title: T, author: T, gener: U, price: V) -> Self;
[INFO] [stdout] 44 |     fn show_details(&self);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `discount` is never used
[INFO] [stdout]   --> src/main.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn discount<T, U, V>(item: &impl PrintDetails<T, U, V>, percentage: f64) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     io::stdin().read_line(&mut input);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let _ = io::stdin().read_line(&mut input);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/main.rs:70:22
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn discount<T, U, V>(item: &impl PrintDetails<T, U, V>, percentage: f64) -> f64 {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `percentage`
[INFO] [stdout]   --> src/main.rs:70:57
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn discount<T, U, V>(item: &impl PrintDetails<T, U, V>, percentage: f64) -> f64 {
[INFO] [stdout]    |                                                         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_percentage`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `author`, `edition`, and `price` are never read
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct Book<T, U, V> {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 13 |     title: T,
[INFO] [stdout] 14 |     author: T,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 15 |     edition: U,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 16 |     price: V,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `show_details` is never used
[INFO] [stdout]   --> src/main.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | trait PrintDetails<T, U, V> {
[INFO] [stdout]    |       ------------ method in this trait
[INFO] [stdout] 43 |     fn new(title: T, author: T, gener: U, price: V) -> Self;
[INFO] [stdout] 44 |     fn show_details(&self);
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `discount` is never used
[INFO] [stdout]   --> src/main.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn discount<T, U, V>(item: &impl PrintDetails<T, U, V>, percentage: f64) -> f64 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     io::stdin().read_line(&mut input);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 152 |     let _ = io::stdin().read_line(&mut input);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "8f835bd181f14bdfd0f65a97506cbb2c5d02a30ecc724ae7c8a01b00c16e1bd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f835bd181f14bdfd0f65a97506cbb2c5d02a30ecc724ae7c8a01b00c16e1bd4", kill_on_drop: false }`
[INFO] [stdout] 8f835bd181f14bdfd0f65a97506cbb2c5d02a30ecc724ae7c8a01b00c16e1bd4