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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c600f7bc8bd5c385cd8650f338e4bc5fdbf44fc
[INFO] fixing yunta-mb/hakuban against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyunta-mb%2Fhakuban" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yunta-mb/hakuban
[INFO] finished tweaking git repo https://github.com/yunta-mb/hakuban
[INFO] tweaked toml for git repo https://github.com/yunta-mb/hakuban written to /workspace/builds/worker-3-tc1/source/Cargo.toml
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[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> tests/common/shuffler.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fmt::{Debug, Display},
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> tests/common/shuffler.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fmt::{Debug, Display},
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> tests/common/shuffler.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 |     fmt::{Debug, Display},
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicI64` and `AtomicU64`
[INFO] [stdout]  --> tests/basic.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |         atomic::{AtomicI64, AtomicU64},
[INFO] [stdout]   |                  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Topology` is never used
[INFO] [stdout]   --> tests/common/network.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum Topology {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `setup_network` and `teardown_network` are never used
[INFO] [stdout]   --> tests/common/network.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Topology {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 20 |     pub async fn setup_network(self, task_count: usize) -> Vec<Arc<Router>> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub async fn teardown_network(routers: Vec<Arc<Router>>) -> std::io::Result<()> {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exit` is never used
[INFO] [stdout]   --> tests/common/router.rs:99:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Router {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 99 |     pub async fn exit(self: Arc<Self>) -> std::io::Result<()> {
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DynError` is never used
[INFO] [stdout]   --> tests/common/shuffler.rs:15:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | type DynError = Box<dyn Error + Send + Sync + 'static>;
[INFO] [stdout]    |      ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Shuffle` is never constructed
[INFO] [stdout]   --> tests/common/shuffler.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Shuffle<T: Clone + Sync + Send + 'static, V: Clone + Sync + Send + Debug + 'static> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Task` is never constructed
[INFO] [stdout]   --> tests/common/shuffler.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Task {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `task`, `setup`, `teardown`, and `run` are never used
[INFO] [stdout]   --> tests/common/shuffler.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl<T: Clone + Sync + Send + 'static, V: Clone + Sync + Send + Debug + 'static> Shuffle<T, V> {
[INFO] [stdout]    | ---------------------------------------------------------------------------------------------- associated items in this implementation
[INFO] [stdout] 37 |     pub fn new(fuzzy_barrier_count: usize, variants: Vec<V>) -> Shuffle<T, V> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn task<R: Future<Output = Result<(), DynError>> + Send + Sync + 'static>(
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn setup<Fut: Future<Output = Result<T, DynError>> + Send + Sync + 'static>(
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn teardown<E: Error + Sync + Send + 'static, Fut: Future<Output = Result<(), E>> + Send + Sync + 'static>(
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 67 |     pub async fn run(self, timeout: Duration) -> Result<(), Box<dyn Error + Sync + Send>> {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `fuzzy_barrier` and `barrier` are never used
[INFO] [stdout]    --> tests/common/shuffler.rs:164:15
[INFO] [stdout]     |
[INFO] [stdout] 163 | impl Task {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] 164 |     pub async fn fuzzy_barrier(&mut self) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 178 |     pub async fn barrier(&mut self) {
[INFO] [stdout]     |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `SingleRouter` and `TwoStackedRouters` are never constructed
[INFO] [stdout]   --> tests/common/network.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum Topology {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 14 |     SingleRouter,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 15 |     TwoStackedRouters,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Topology` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `task_id`, `barriers`, `next_barrier`, `history`, and `tasks_count` are never read
[INFO] [stdout]   --> tests/common/shuffler.rs:28:2
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Task {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 27 |     pub name: &'static str,
[INFO] [stdout] 28 |     task_id: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 29 |     standard_barrier: Arc<tokio::sync::Barrier>,
[INFO] [stdout] 30 |     barriers: Arc<Vec<tokio::sync::Barrier>>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 31 |     next_barrier: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 32 |     history: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 33 |     tasks_count: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fuzzy_barrier` is never used
[INFO] [stdout]    --> tests/common/shuffler.rs:164:15
[INFO] [stdout]     |
[INFO] [stdout] 163 | impl Task {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 164 |     pub async fn fuzzy_barrier(&mut self) {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] [stderr] crater-edition-check: all finished
[INFO] running `Command { std: "docker" "inspect" "c55a0dd4161cefb503432410c51be28085ae88c2baa67de7773a56567b1fb74f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c55a0dd4161cefb503432410c51be28085ae88c2baa67de7773a56567b1fb74f", kill_on_drop: false }`
[INFO] [stdout] c55a0dd4161cefb503432410c51be28085ae88c2baa67de7773a56567b1fb74f
