[INFO] cloning repository https://github.com/irvingoujAtDevolution/mini_runtime_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/irvingoujAtDevolution/mini_runtime_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FirvingoujAtDevolution%2Fmini_runtime_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FirvingoujAtDevolution%2Fmini_runtime_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d34d12e485b93517ef92c5baf29058f9fc633a1
[INFO] checking irvingoujAtDevolution/mini_runtime_demo against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FirvingoujAtDevolution%2Fmini_runtime_demo" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/irvingoujAtDevolution/mini_runtime_demo on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/irvingoujAtDevolution/mini_runtime_demo
[INFO] finished tweaking git repo https://github.com/irvingoujAtDevolution/mini_runtime_demo
[INFO] tweaked toml for git repo https://github.com/irvingoujAtDevolution/mini_runtime_demo written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/irvingoujAtDevolution/mini_runtime_demo 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] adfcec7bdee93ece7059ff827ba9898a2bd3dfc99ef0087f9733e2372aaf529c
[INFO] running `Command { std: "docker" "start" "-a" "adfcec7bdee93ece7059ff827ba9898a2bd3dfc99ef0087f9733e2372aaf529c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adfcec7bdee93ece7059ff827ba9898a2bd3dfc99ef0087f9733e2372aaf529c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adfcec7bdee93ece7059ff827ba9898a2bd3dfc99ef0087f9733e2372aaf529c", kill_on_drop: false }`
[INFO] [stdout] adfcec7bdee93ece7059ff827ba9898a2bd3dfc99ef0087f9733e2372aaf529c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07fd5e932880e52041fdd3bdf1eb5bd2b3f48a629674a24b07e47155bef38c9b
[INFO] running `Command { std: "docker" "start" "-a" "07fd5e932880e52041fdd3bdf1eb5bd2b3f48a629674a24b07e47155bef38c9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.33
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking state_call_back v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `time::Duration`
[INFO] [stdout]  --> src/executor.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     time::Duration,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pin`
[INFO] [stdout]  --> src/async_timer.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::pin::{Pin, pin};
[INFO] [stdout]   |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `possibly_return_a_future`
[INFO] [stdout]   --> src/main.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::async_timer::{possibly_return_a_future, returns_a_future, TimerFuture};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PossibleFuture`
[INFO] [stdout]   --> src/main.rs:12:39
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::utils::{MockNetWorkClient, PossibleFuture};
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `time::Duration`
[INFO] [stdout]  --> src/executor.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     time::Duration,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pin`
[INFO] [stdout]  --> src/async_timer.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::pin::{Pin, pin};
[INFO] [stdout]   |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `possibly_return_a_future`
[INFO] [stdout]   --> src/main.rs:10:26
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::async_timer::{possibly_return_a_future, returns_a_future, TimerFuture};
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PossibleFuture`
[INFO] [stdout]   --> src/main.rs:12:39
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::utils::{MockNetWorkClient, PossibleFuture};
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::task::SpawnExt`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use futures::task::SpawnExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/executor.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/utils.rs:43:54
[INFO] [stdout]    |
[INFO] [stdout] 43 |         handle_logic(possibly_return_a_future(num), |x| {
[INFO] [stdout]    |                                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `future`
[INFO] [stdout]   --> src/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let future = StateMachine::State1;  // Initial state
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_future`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let client = MockNetWorkClient;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]   --> src/executor.rs:45:19
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Executor {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub(crate) fn run(&self) {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `possibly_return_a_future` is never used
[INFO] [stdout]   --> src/async_timer.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn possibly_return_a_future(num:u32) ->PossibleFuture<f64>{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `possibly_return_another_future` is never used
[INFO] [stdout]   --> src/async_timer.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn possibly_return_another_future(num:u32) ->PossibleFuture<u32>{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PossibleFuture` is never used
[INFO] [stdout]  --> src/utils.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum PossibleFuture<T: Send> {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `unwrap_value` is never used
[INFO] [stdout]   --> src/utils.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<T: Send> PossibleFuture<T> {
[INFO] [stdout]    | ------------------------------- method in this implementation
[INFO] [stdout] 11 |     pub fn unwrap_value(self) -> T {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_logic` is never used
[INFO] [stdout]   --> src/utils.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn handle_logic<T, U, F>(res: PossibleFuture<T>, logic: F) -> PossibleFuture<U>
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]   --> src/utils.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl MockNetWorkClient {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 42 |     pub fn send(&self,num:u32) -> PossibleFuture<i64> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decrypt` is never used
[INFO] [stdout]   --> src/utils.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn decrypt(num:f64) -> i64{
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::task::SpawnExt`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use futures::task::SpawnExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/executor.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         unsafe {
[INFO] [stdout]    |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/utils.rs:43:54
[INFO] [stdout]    |
[INFO] [stdout] 43 |         handle_logic(possibly_return_a_future(num), |x| {
[INFO] [stdout]    |                                                      ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `future`
[INFO] [stdout]   --> src/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let future = StateMachine::State1;  // Initial state
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_future`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `client`
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let client = MockNetWorkClient;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_client`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `run` is never used
[INFO] [stdout]   --> src/executor.rs:45:19
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Executor {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub(crate) fn run(&self) {
[INFO] [stdout]    |                   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `possibly_return_a_future` is never used
[INFO] [stdout]   --> src/async_timer.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn possibly_return_a_future(num:u32) ->PossibleFuture<f64>{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `possibly_return_another_future` is never used
[INFO] [stdout]   --> src/async_timer.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn possibly_return_another_future(num:u32) ->PossibleFuture<u32>{
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `PossibleFuture` is never used
[INFO] [stdout]  --> src/utils.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum PossibleFuture<T: Send> {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `unwrap_value` is never used
[INFO] [stdout]   --> src/utils.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<T: Send> PossibleFuture<T> {
[INFO] [stdout]    | ------------------------------- method in this implementation
[INFO] [stdout] 11 |     pub fn unwrap_value(self) -> T {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_logic` is never used
[INFO] [stdout]   --> src/utils.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn handle_logic<T, U, F>(res: PossibleFuture<T>, logic: F) -> PossibleFuture<U>
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `send` is never used
[INFO] [stdout]   --> src/utils.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl MockNetWorkClient {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 42 |     pub fn send(&self,num:u32) -> PossibleFuture<i64> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decrypt` is never used
[INFO] [stdout]   --> src/utils.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn decrypt(num:f64) -> i64{
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.52s
[INFO] running `Command { std: "docker" "inspect" "07fd5e932880e52041fdd3bdf1eb5bd2b3f48a629674a24b07e47155bef38c9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07fd5e932880e52041fdd3bdf1eb5bd2b3f48a629674a24b07e47155bef38c9b", kill_on_drop: false }`
[INFO] [stdout] 07fd5e932880e52041fdd3bdf1eb5bd2b3f48a629674a24b07e47155bef38c9b