[INFO] cloning repository https://github.com/lucassantoss1701/rust-ardan-labs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucassantoss1701/rust-ardan-labs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucassantoss1701%2Frust-ardan-labs", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2350b520308de8138660787dbbae5fde6f3397b
[INFO] checking lucassantoss1701/rust-ardan-labs against master#cb40c25f6aebb637163d26bf76a680ed6e5d1eda for pr-156157-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucassantoss1701%2Frust-ardan-labs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lucassantoss1701/rust-ardan-labs
[INFO] finished tweaking git repo https://github.com/lucassantoss1701/rust-ardan-labs
[INFO] tweaked toml for git repo https://github.com/lucassantoss1701/rust-ardan-labs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lucassantoss1701/rust-ardan-labs on toolchain cb40c25f6aebb637163d26bf76a680ed6e5d1eda
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cb40c25f6aebb637163d26bf76a680ed6e5d1eda" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lucassantoss1701/rust-ardan-labs 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" "+cb40c25f6aebb637163d26bf76a680ed6e5d1eda" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+cb40c25f6aebb637163d26bf76a680ed6e5d1eda" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stderr]     Checking low_level v0.1.0 (/opt/rustwide/workdir/session4/low_level)
[INFO] [stderr]     Checking rwlocks v0.1.0 (/opt/rustwide/workdir/session2/rwlocks)
[INFO] [stderr]     Checking workers2 v0.1.0 (/opt/rustwide/workdir/session2/workers2)
[INFO] [stderr]     Checking parking v0.1.0 (/opt/rustwide/workdir/session2/parking)
[INFO] [stderr]     Checking formatting v0.1.0 (/opt/rustwide/workdir/bestpractices/formatting)
[INFO] [stderr]    Compiling sqlformat v0.2.4
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> session2/workers2/src/main.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     loop {
[INFO] [stdout] 38 | |         let sent = {
[INFO] [stdout] 39 | |             let mut lock = WORK_QUEUE.lock().unwrap();
[INFO] [stdout] 40 | |             let len = lock.len();
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |         std::thread::sleep(Duration::from_secs(1))
[INFO] [stdout] 55 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 56 |
[INFO] [stdout] 57 |       println!("Hello, world!");
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> session2/workers2/src/main.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     loop {
[INFO] [stdout] 38 | |         let sent = {
[INFO] [stdout] 39 | |             let mut lock = WORK_QUEUE.lock().unwrap();
[INFO] [stdout] 40 | |             let len = lock.len();
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |         std::thread::sleep(Duration::from_secs(1))
[INFO] [stdout] 55 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 56 |
[INFO] [stdout] 57 |       println!("Hello, world!");
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking priority v0.1.0 (/opt/rustwide/workdir/session2/priority)
[INFO] [stderr]     Checking packing v0.1.0 (/opt/rustwide/workdir/session4/packing)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]  --> bestpractices/formatting/src/main.rs:4:35
[INFO] [stdout]   |
[INFO] [stdout] 4 |     println!("Hello, world!");for i in 0..21 { println!(".)");}
[INFO] [stdout]   |                                   ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking traits v0.1.0 (/opt/rustwide/workdir/session4/traits)
[INFO] [stdout] warning: `#[no_mangle]` attribute cannot be used on structs
[INFO] [stdout]  --> session4/packing/src/main.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[no_mangle]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[no_mangle]` can be applied to functions and statics
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]  --> session4/packing/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct OneByte {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 2 |     a: u8,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]  --> session4/packing/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct TwoBytes {
[INFO] [stdout]   |        -------- field in this struct
[INFO] [stdout] 6 |     a: u16,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> session4/packing/src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct FourBytes {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 17 |     a: u32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking deadlocks v0.1.0 (/opt/rustwide/workdir/session2/deadlocks)
[INFO] [stderr]     Checking scoped_threads v0.1.0 (/opt/rustwide/workdir/session2/scoped_threads)
[INFO] [stderr]     Checking refc v0.1.0 (/opt/rustwide/workdir/session4/refc)
[INFO] [stderr]     Checking channels1 v0.1.0 (/opt/rustwide/workdir/session2/channels1)
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> session4/traits/src/main.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |         if let Some(t) = animal.as_any().downcast_ref::<Tortoise>(){
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `speak` is never used
[INFO] [stdout]   --> session4/traits/src/main.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | trait DowncastableAnimal {
[INFO] [stdout]    |       ------------------ method in this trait
[INFO] [stdout] 38 |     fn speak(&self) {println!("No idea")}
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking mutexes v0.1.0 (/opt/rustwide/workdir/session2/mutexes)
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir/session1/hello_world)
[INFO] [stderr]     Checking dashing v0.1.0 (/opt/rustwide/workdir/session2/dashing)
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir/session2/hello)
[INFO] [stderr]     Checking cycles v0.1.0 (/opt/rustwide/workdir/session4/cycles)
[INFO] [stderr]     Checking iterators v0.1.0 (/opt/rustwide/workdir/session4/iterators)
[INFO] [stderr]     Checking variables v0.1.0 (/opt/rustwide/workdir/session1/variables)
[INFO] [stderr]     Checking memory v0.1.0 (/opt/rustwide/workdir/session4/memory)
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stdout] warning: function `hello_thread` is never used
[INFO] [stdout]  --> session2/hello/src/main.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn hello_thread(n: u32){
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> session4/cycles/src/main.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Strong(Rc<Node>),
[INFO] [stdout]    |     ------ ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NextNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     Strong(Rc<Node>),
[INFO] [stdout] 12 +     Strong(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> session4/cycles/src/main.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Weak(Weak<Node>),
[INFO] [stdout]    |     ---- ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NextNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     Weak(Weak<Node>),
[INFO] [stdout] 13 +     Weak(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `my_fn` is never used
[INFO] [stdout]  --> session4/memory/src/main.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | unsafe fn my_fn(){
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rust-ardan-labs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking generics v0.1.0 (/opt/rustwide/workdir/session4/generics)
[INFO] [stderr]     Checking thread_builder v0.1.0 (/opt/rustwide/workdir/session2/thread_builder)
[INFO] [stdout] warning: function `double` is never used
[INFO] [stdout]  --> session1/variables/src/main.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn double(n: i32) -> i32{
[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 `double_or_nothing` is never used
[INFO] [stdout]  --> session1/variables/src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn double_or_nothing(n: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greet` is never used
[INFO] [stdout]   --> session1/variables/src/main.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn greet(s: String) -> String{
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greet_borrow` is never used
[INFO] [stdout]   --> session1/variables/src/main.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn greet_borrow(s: &String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greet_borrow_mut` is never used
[INFO] [stdout]   --> session1/variables/src/main.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn greet_borrow_mut(s: &mut String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking workers v0.1.0 (/opt/rustwide/workdir/session2/workers)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> session4/generics/src/main.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn iter(&self) -> HashMapBucketIter<K, V> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn iter(&self) -> HashMapBucketIter<'_, K, V> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking divide_work v0.1.0 (/opt/rustwide/workdir/session2/divide_work)
[INFO] [stderr]     Checking clippy v0.1.0 (/opt/rustwide/workdir/bestpractices/clippy)
[INFO] [stdout] warning: function `hello_thread` is never used
[INFO] [stdout]  --> session2/hello/src/main.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn hello_thread(n: u32){
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]   --> session2/workers/src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let handle = std::thread::spawn(move ||{
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> session4/traits/src/main.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |         if let Some(t) = animal.as_any().downcast_ref::<Tortoise>(){
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `speak` is never used
[INFO] [stdout]   --> session4/traits/src/main.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | trait DowncastableAnimal {
[INFO] [stdout]    |       ------------------ method in this trait
[INFO] [stdout] 38 |     fn speak(&self) {println!("No idea")}
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> session4/generics/src/main.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn iter(&self) -> HashMapBucketIter<K, V> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn iter(&self) -> HashMapBucketIter<'_, K, V> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking dropping v0.1.0 (/opt/rustwide/workdir/session4/dropping)
[INFO] [stdout] warning: unused variable: `handle`
[INFO] [stdout]   --> session2/workers/src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let handle = std::thread::spawn(move ||{
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_handle`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_num`
[INFO] [stdout]   --> session4/dropping/src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let my_num = Box::new(12);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_num`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `my_fn` is never used
[INFO] [stdout]  --> session4/memory/src/main.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | unsafe fn my_fn(){
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking footgun v0.1.0 (/opt/rustwide/workdir/session2/footgun)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> session4/cycles/src/main.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Strong(Rc<Node>),
[INFO] [stdout]    |     ------ ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NextNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 12 -     Strong(Rc<Node>),
[INFO] [stdout] 12 +     Strong(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> session4/cycles/src/main.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Weak(Weak<Node>),
[INFO] [stdout]    |     ---- ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NextNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     Weak(Weak<Node>),
[INFO] [stdout] 13 +     Weak(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_num`
[INFO] [stdout]   --> session4/dropping/src/main.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let my_num = Box::new(12);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_num`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `double` is never used
[INFO] [stdout]  --> session1/variables/src/main.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn double(n: i32) -> i32{
[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 `double_or_nothing` is never used
[INFO] [stdout]  --> session1/variables/src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn double_or_nothing(n: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greet` is never used
[INFO] [stdout]   --> session1/variables/src/main.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn greet(s: String) -> String{
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greet_borrow` is never used
[INFO] [stdout]   --> session1/variables/src/main.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn greet_borrow(s: &String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `greet_borrow_mut` is never used
[INFO] [stdout]   --> session1/variables/src/main.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn greet_borrow_mut(s: &mut String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[no_mangle]` attribute cannot be used on structs
[INFO] [stdout]  --> session4/packing/src/main.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[no_mangle]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = help: `#[no_mangle]` can be applied to functions and statics
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]  --> bestpractices/formatting/src/main.rs:4:35
[INFO] [stdout]   |
[INFO] [stdout] 4 |     println!("Hello, world!");for i in 0..21 { println!(".)");}
[INFO] [stdout]   |                                   ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `N` is never used
[INFO] [stdout]  --> bestpractices/formatting/src/main.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 |         const N: i32 = 1;
[INFO] [stdout]   |               ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]  --> session4/packing/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct OneByte {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 2 |     a: u8,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]  --> session4/packing/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct TwoBytes {
[INFO] [stdout]   |        -------- field in this struct
[INFO] [stdout] 6 |     a: u16,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `a` is never read
[INFO] [stdout]   --> session4/packing/src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct FourBytes {
[INFO] [stdout]    |        --------- field in this struct
[INFO] [stdout] 17 |     a: u32,
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling tempfile v3.11.0
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.205
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling async-trait v0.1.81
[INFO] [stderr]    Compiling bytemuck_derive v1.7.1
[INFO] [stderr]    Compiling clap_derive v4.5.8
[INFO] [stderr]    Compiling async-recursion v1.1.1
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking bytemuck v1.17.0
[INFO] [stderr]     Checking bytes v0.1.0 (/opt/rustwide/workdir/session4/bytes)
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling tokio-stream v0.1.15
[INFO] [stderr]     Checking clap v4.5.10
[INFO] [stderr]     Checking http-body-util v0.1.2
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking hello_async v0.1.0 (/opt/rustwide/workdir/session3/hello_async)
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking hello_tokio v0.1.0 (/opt/rustwide/workdir/session3/hello_tokio)
[INFO] [stderr]     Checking fileio v0.1.0 (/opt/rustwide/workdir/session3/fileio)
[INFO] [stderr]     Checking recursion v0.1.0 (/opt/rustwide/workdir/session3/recursion)
[INFO] [stderr]     Checking blocking v0.1.0 (/opt/rustwide/workdir/session3/blocking)
[INFO] [stderr]     Checking channels v0.1.0 (/opt/rustwide/workdir/session3/channels)
[INFO] [stdout] warning: unused import: `time`
[INFO] [stdout]  --> session3/blocking/src/main.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::{join, time, task::spawn_blocking};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> session3/recursion/src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut future = async {
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio_testing v0.1.0 (/opt/rustwide/workdir/session3/tokio_testing)
[INFO] [stdout] warning: unused import: `runtime`
[INFO] [stdout]  --> session3/hello_tokio/src/main.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio::{join, runtime, task};
[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: `runtime`
[INFO] [stdout]  --> session3/hello_tokio/src/main.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio::{join, runtime, task};
[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: `time`
[INFO] [stdout]  --> session3/blocking/src/main.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::{join, time, task::spawn_blocking};
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking async_mutex v0.1.0 (/opt/rustwide/workdir/session3/async_mutex)
[INFO] [stdout] warning: unused import: `tokio::io::AsyncBufReadExt`
[INFO] [stdout]  --> session3/fileio/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::io::AsyncBufReadExt;
[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: `tokio::io::AsyncBufReadExt`
[INFO] [stdout]  --> session3/fileio/src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::io::AsyncBufReadExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello2` is never used
[INFO] [stdout]  --> session3/hello_tokio/src/main.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | async fn hello2() -> u32{
[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 `hello2` is never used
[INFO] [stdout]  --> session3/hello_tokio/src/main.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | async fn hello2() -> u32{
[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 `read_lines` is never used
[INFO] [stdout]  --> session3/fileio/src/main.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
[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 `line_count` is never used
[INFO] [stdout]   --> session3/fileio/src/main.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn line_count(filename: String) -> anyhow::Result<usize>{
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tcpserver v0.1.0 (/opt/rustwide/workdir/session3/tcpserver)
[INFO] [stderr]     Checking tokio_select v0.1.0 (/opt/rustwide/workdir/session3/tokio_select)
[INFO] [stdout] warning: function `read_lines` is never used
[INFO] [stdout]  --> session3/fileio/src/main.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
[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 `line_count` is never used
[INFO] [stdout]   --> session3/fileio/src/main.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | async fn line_count(filename: String) -> anyhow::Result<usize>{
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking logspan v0.1.0 (/opt/rustwide/workdir/session3/logspan)
[INFO] [stdout] warning: function `double` is never used
[INFO] [stdout]  --> session3/tokio_testing/src/lib.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | async fn double(n: u32) -> u32{
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> session3/recursion/src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     let mut future = async {
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking h2 v0.4.5
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]     Checking serde_path_to_error v0.1.16
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling sqlx-core v0.8.0
[INFO] [stderr]     Checking authentication v0.1.0 (/opt/rustwide/workdir/session1/authentication)
[INFO] [stderr]     Checking errors v0.1.0 (/opt/rustwide/workdir/session3/errors)
[INFO] [stdout] warning: enum `UsersError` is never used
[INFO] [stdout]  --> session3/errors/src/main.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum UsersError{
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> session3/errors/src/main.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct User{
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `GenericResult` is never used
[INFO] [stdout]   --> session3/errors/src/main.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | type GenericResult<T> = Result<T, Box<dyn std::error::Error>>;
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_users` is never used
[INFO] [stdout]   --> session3/errors/src/main.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn load_users() -> Result<Vec<User>, UsersError>{
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `UsersError` is never used
[INFO] [stdout]  --> session3/errors/src/main.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum UsersError{
[INFO] [stdout]   |      ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]   --> session3/errors/src/main.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct User{
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `GenericResult` is never used
[INFO] [stdout]   --> session3/errors/src/main.rs:30:6
[INFO] [stdout]    |
[INFO] [stdout] 30 | type GenericResult<T> = Result<T, Box<dyn std::error::Error>>;
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_users` is never used
[INFO] [stdout]   --> session3/errors/src/main.rs:32:4
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn load_users() -> Result<Vec<User>, UsersError>{
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking login_manager v0.1.0 (/opt/rustwide/workdir/session1/login_manager)
[INFO] [stderr]     Checking login v0.1.0 (/opt/rustwide/workdir/session1/login)
[INFO] [stderr]     Checking rayon_iters v0.1.0 (/opt/rustwide/workdir/session2/rayon_iters)
[INFO] [stderr]     Checking rayon_scopes v0.1.0 (/opt/rustwide/workdir/session2/rayon_scopes)
[INFO] [stdout] warning: unused import: `std::fmt::Debug`
[INFO] [stdout]  --> session2/rayon_scopes/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Debug;
[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: `std::fmt::Debug`
[INFO] [stdout]  --> session2/rayon_scopes/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Debug;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sqlx-sqlite v0.8.0
[INFO] [stderr]     Checking hyper v1.4.1
[INFO] [stderr]     Checking hyper-util v0.1.6
[INFO] [stderr]    Compiling sqlx-macros-core v0.8.0
[INFO] [stderr]     Checking hyper-tls v0.6.0
[INFO] [stderr]     Checking axum-server v0.7.1
[INFO] [stderr]     Checking reqwest v0.12.5
[INFO] [stderr]     Checking restclient v0.1.0 (/opt/rustwide/workdir/session3/restclient)
[INFO] [stderr]    Compiling sqlx-macros v0.8.0
[INFO] [stderr]     Checking sqlx v0.8.0
[INFO] [stderr]     Checking db v0.1.0 (/opt/rustwide/workdir/session3/db)
[INFO] [stdout] warning: unused import: `Row`
[INFO] [stdout]  --> session3/db/src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sqlx::{Row, FromRow};
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `message` are never read
[INFO] [stdout]  --> session3/db/src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Message{
[INFO] [stdout]   |        ------- fields in this struct
[INFO] [stdout] 7 |     id: i64,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 8 |     message: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Message` has a derived impl for the trait `Debug`, but this is 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: unused import: `Row`
[INFO] [stdout]  --> session3/db/src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use sqlx::{Row, FromRow};
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `message` are never read
[INFO] [stdout]  --> session3/db/src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Message{
[INFO] [stdout]   |        ------- fields in this struct
[INFO] [stdout] 7 |     id: i64,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 8 |     message: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Message` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking web_service v0.1.0 (/opt/rustwide/workdir/session3/web_service)
[INFO] [stdout] warning: function `say_hello_text` is never used
[INFO] [stdout]   --> session3/web_service/src/main.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | async fn say_hello_text() -> Html<&'static str>{
[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 `say_hello_text` is never used
[INFO] [stdout]   --> session3/web_service/src/main.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | async fn say_hello_text() -> Html<&'static str>{
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 35s
[INFO] running `Command { std: "docker" "inspect" "a089a66b93bd3ba8f96b169fd2ee2fed1358646fd94f65199ec8616867e43cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a089a66b93bd3ba8f96b169fd2ee2fed1358646fd94f65199ec8616867e43cbc", kill_on_drop: false }`
[INFO] [stdout] a089a66b93bd3ba8f96b169fd2ee2fed1358646fd94f65199ec8616867e43cbc
