[INFO] cloning repository https://github.com/waelchabchoub/Peeriot-Rust-Vending-Machine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/waelchabchoub/Peeriot-Rust-Vending-Machine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaelchabchoub%2FPeeriot-Rust-Vending-Machine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaelchabchoub%2FPeeriot-Rust-Vending-Machine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5252c3616fab2c22ef7cf6674e83439fee9fa672
[INFO] checking waelchabchoub/Peeriot-Rust-Vending-Machine against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwaelchabchoub%2FPeeriot-Rust-Vending-Machine" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/waelchabchoub/Peeriot-Rust-Vending-Machine
[INFO] finished tweaking git repo https://github.com/waelchabchoub/Peeriot-Rust-Vending-Machine
[INFO] tweaked toml for git repo https://github.com/waelchabchoub/Peeriot-Rust-Vending-Machine written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/waelchabchoub/Peeriot-Rust-Vending-Machine on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/waelchabchoub/Peeriot-Rust-Vending-Machine 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.features
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded terminal_size v0.1.17
[INFO] [stderr]   Downloaded serde_derive v1.0.147
[INFO] [stderr]   Downloaded aho-corasick v0.7.19
[INFO] [stderr]   Downloaded round v0.1.2
[INFO] [stderr]   Downloaded ryu v1.0.11
[INFO] [stderr]   Downloaded itoa v1.0.4
[INFO] [stderr]   Downloaded libc v0.2.137
[INFO] [stderr]   Downloaded console v0.15.2
[INFO] [stderr]   Downloaded serde_json v1.0.87
[INFO] [stderr]   Downloaded json v0.12.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddbfad728004a348ddb9e010051c5aa232c0c55d7dfd72aad628eb7440705eb1
[INFO] running `Command { std: "docker" "start" "-a" "ddbfad728004a348ddb9e010051c5aa232c0c55d7dfd72aad628eb7440705eb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddbfad728004a348ddb9e010051c5aa232c0c55d7dfd72aad628eb7440705eb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddbfad728004a348ddb9e010051c5aa232c0c55d7dfd72aad628eb7440705eb1", kill_on_drop: false }`
[INFO] [stdout] ddbfad728004a348ddb9e010051c5aa232c0c55d7dfd72aad628eb7440705eb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 117a138a4239854488b747534e02e4acb142e47f207e3ea0e618e83801f2ef46
[INFO] running `Command { std: "docker" "start" "-a" "117a138a4239854488b747534e02e4acb142e47f207e3ea0e618e83801f2ef46", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.features
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking round v0.1.2
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking console v0.15.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking peeriot_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `price` is never read
[INFO] [stdout]  --> src/tasks/task3.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut price :f64=0.0;
[INFO] [stdout]   |                        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `paid` is never read
[INFO] [stdout]  --> src/tasks/task3.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut paid=0.0;
[INFO] [stdout]   |                  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/tasks/task6.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let result = write_to_file(coins,path);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `task1` is never used
[INFO] [stdout]  --> src/tasks/task1.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn task1(){
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_price` is never used
[INFO] [stdout]   --> src/tasks/task1.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn generate_random_price()->f64{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_change` is never used
[INFO] [stdout]   --> src/tasks/task1.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub fn calculate_change(price:f64,paid:f64)->f64{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `task2` is never used
[INFO] [stdout]  --> src/tasks/task2.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn task2(){
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_coins` is never used
[INFO] [stdout]   --> src/tasks/task2.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn return_coins(price:f64,paid:f64){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `task3` is never used
[INFO] [stdout]  --> src/tasks/task3.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn task3(){
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_coins` is never used
[INFO] [stdout]   --> src/tasks/task3.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub fn return_coins(price:f64,paid:f64){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `task4` is never used
[INFO] [stdout]  --> src/tasks/task4.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn task4(){
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `initiate_machine` is never used
[INFO] [stdout]   --> src/tasks/task4.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn initiate_machine()-> HashMap<&'static str,i32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `task5` is never used
[INFO] [stdout]  --> src/tasks/task5.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn task5(){
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `initiate_machine` is never used
[INFO] [stdout]   --> src/tasks/task5.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn initiate_machine()->HashMap<&'static str,i32>{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `price` is never read
[INFO] [stdout]  --> src/tasks/task3.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut price :f64=0.0;
[INFO] [stdout]   |                        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `paid` is never read
[INFO] [stdout]  --> src/tasks/task3.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut paid=0.0;
[INFO] [stdout]   |                  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/tasks/task6.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let result = write_to_file(coins,path);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `task1` is never used
[INFO] [stdout]  --> src/tasks/task1.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn task1(){
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_random_price` is never used
[INFO] [stdout]   --> src/tasks/task1.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn generate_random_price()->f64{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_change` is never used
[INFO] [stdout]   --> src/tasks/task1.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub fn calculate_change(price:f64,paid:f64)->f64{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `task2` is never used
[INFO] [stdout]  --> src/tasks/task2.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn task2(){
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_coins` is never used
[INFO] [stdout]   --> src/tasks/task2.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn return_coins(price:f64,paid:f64){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `task3` is never used
[INFO] [stdout]  --> src/tasks/task3.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn task3(){
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.23s
[INFO] [stdout] warning: function `return_coins` is never used
[INFO] [stdout]   --> src/tasks/task3.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub fn return_coins(price:f64,paid:f64){
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `task4` is never used
[INFO] [stdout]  --> src/tasks/task4.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn task4(){
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `initiate_machine` is never used
[INFO] [stdout]   --> src/tasks/task4.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn initiate_machine()-> HashMap<&'static str,i32> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `task5` is never used
[INFO] [stdout]  --> src/tasks/task5.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn task5(){
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `initiate_machine` is never used
[INFO] [stdout]   --> src/tasks/task5.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn initiate_machine()->HashMap<&'static str,i32>{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "117a138a4239854488b747534e02e4acb142e47f207e3ea0e618e83801f2ef46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "117a138a4239854488b747534e02e4acb142e47f207e3ea0e618e83801f2ef46", kill_on_drop: false }`
[INFO] [stdout] 117a138a4239854488b747534e02e4acb142e47f207e3ea0e618e83801f2ef46
