[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 }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucassantoss1701%2Frust-ardan-labs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2350b520308de8138660787dbbae5fde6f3397b
[INFO] checking lucassantoss1701/rust-ardan-labs against try#724e78794d2cf06eef820a24c9a4608d63435e1d for pr-149145
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucassantoss1701%2Frust-ardan-labs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/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-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lucassantoss1701/rust-ardan-labs on toolchain 724e78794d2cf06eef820a24c9a4608d63435e1d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "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" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48a6cb4525ef39da7ab7dba7c6f8b824e863b12b5be0e2289022567678b6379a
[INFO] running `Command { std: "docker" "start" "-a" "48a6cb4525ef39da7ab7dba7c6f8b824e863b12b5be0e2289022567678b6379a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48a6cb4525ef39da7ab7dba7c6f8b824e863b12b5be0e2289022567678b6379a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48a6cb4525ef39da7ab7dba7c6f8b824e863b12b5be0e2289022567678b6379a", kill_on_drop: false }`
[INFO] [stdout] 48a6cb4525ef39da7ab7dba7c6f8b824e863b12b5be0e2289022567678b6379a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+724e78794d2cf06eef820a24c9a4608d63435e1d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba94cee31f14106ff3cfceb3aaf80e9919e3427a75c0ecf18bf78eadc851feb9
[INFO] running `Command { std: "docker" "start" "-a" "ba94cee31f14106ff3cfceb3aaf80e9919e3427a75c0ecf18bf78eadc851feb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking bytes v1.7.1
[INFO] [stderr]    Compiling serde v1.0.205
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling cc v1.1.7
[INFO] [stderr]    Compiling serde_json v1.0.122
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking mio v1.0.1
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]     Checking tinyvec v1.8.0
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling unicode-bidi v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking indexmap v2.3.0
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling parking v2.2.0
[INFO] [stderr]    Compiling sqlformat v0.2.4
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling event-listener v5.3.1
[INFO] [stderr]    Compiling tokio v1.39.2
[INFO] [stderr]    Compiling futures-intrusive v0.5.0
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling flume v0.11.0
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]    Compiling hashlink v0.9.1
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling axum v0.7.5
[INFO] [stderr]    Compiling openssl-sys v0.9.103
[INFO] [stderr]    Compiling libsqlite3-sys v0.28.0
[INFO] [stderr]     Checking clap_lex v0.7.1
[INFO] [stderr]     Checking clap_builder v4.5.10
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking rustls-pemfile v2.1.3
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking dashmap v6.0.1
[INFO] [stderr]     Checking thread-priority v1.1.0
[INFO] [stderr]    Compiling openssl v0.10.66
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]     Checking core_affinity v0.8.1
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking priority v0.1.0 (/opt/rustwide/workdir/session2/priority)
[INFO] [stderr]     Checking affinity v0.1.0 (/opt/rustwide/workdir/session2/affinity)
[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 tracing-subscriber v0.3.18
[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]    = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking packing v0.1.0 (/opt/rustwide/workdir/session4/packing)
[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]    = note: this warning originates in the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cycles v0.1.0 (/opt/rustwide/workdir/session4/cycles)
[INFO] [stderr]     Checking dashing v0.1.0 (/opt/rustwide/workdir/session2/dashing)
[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 formatting v0.1.0 (/opt/rustwide/workdir/bestpractices/formatting)
[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] [stderr]     Checking mutexes v0.1.0 (/opt/rustwide/workdir/session2/mutexes)
[INFO] [stderr]     Checking channels1 v0.1.0 (/opt/rustwide/workdir/session2/channels1)
[INFO] [stderr]     Checking scoped_threads v0.1.0 (/opt/rustwide/workdir/session2/scoped_threads)
[INFO] [stderr]     Checking deadlocks v0.1.0 (/opt/rustwide/workdir/session2/deadlocks)
[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] [stderr]     Checking clippy v0.1.0 (/opt/rustwide/workdir/bestpractices/clippy)
[INFO] [stderr]     Checking rust-ardan-labs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking memory v0.1.0 (/opt/rustwide/workdir/session4/memory)
[INFO] [stderr]     Checking iterators v0.1.0 (/opt/rustwide/workdir/session4/iterators)
[INFO] [stderr]     Checking dropping v0.1.0 (/opt/rustwide/workdir/session4/dropping)
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir/session2/hello)
[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 parking v0.1.0 (/opt/rustwide/workdir/session2/parking)
[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 `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] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir/session1/hello_world)
[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] [stderr]     Checking thread_builder v0.1.0 (/opt/rustwide/workdir/session2/thread_builder)
[INFO] [stderr]     Checking divide_work v0.1.0 (/opt/rustwide/workdir/session2/divide_work)
[INFO] [stderr]     Checking workers v0.1.0 (/opt/rustwide/workdir/session2/workers)
[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: 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] [stderr]     Checking generics v0.1.0 (/opt/rustwide/workdir/session4/generics)
[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: 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] error: could not compile `openssl-sys` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/724e78794d2cf06eef820a24c9a4608d63435e1d/bin/rustc --crate-name openssl_sys --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/openssl-sys-0.9.103/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("bindgen", "bssl-sys", "openssl-src", "unstable_boringssl", "vendored"))' -C metadata=301854a7a1ac75ee -C extra-filename=-d52508fb36ce7221 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-3a2c4c414dca3b58.rmeta --cap-lints allow --cap-lints=forbid -l ssl -l crypto --cfg 'osslconf="OPENSSL_NO_IDEA"' --cfg 'osslconf="OPENSSL_NO_SSL3_METHOD"' --cfg openssl --cfg ossl300 --cfg ossl101 --cfg ossl102 --cfg ossl102f --cfg ossl102h --cfg ossl110 --cfg ossl110f --cfg ossl110g --cfg ossl110h --cfg ossl111 --cfg ossl111b --cfg ossl111c --cfg ossl111d --check-cfg 'cfg(osslconf, values("OPENSSL_NO_OCB", "OPENSSL_NO_SM4", "OPENSSL_NO_SEED", "OPENSSL_NO_CHACHA", "OPENSSL_NO_CAST", "OPENSSL_NO_IDEA", "OPENSSL_NO_CAMELLIA", "OPENSSL_NO_RC4", "OPENSSL_NO_BF", "OPENSSL_NO_PSK", "OPENSSL_NO_DEPRECATED_3_0", "OPENSSL_NO_SCRYPT", "OPENSSL_NO_SM3", "OPENSSL_NO_RMD160", "OPENSSL_NO_EC2M", "OPENSSL_NO_OCSP", "OPENSSL_NO_CMS", "OPENSSL_NO_COMP", "OPENSSL_NO_SOCK", "OPENSSL_NO_STDIO"))' --check-cfg 'cfg(openssl)' --check-cfg 'cfg(libressl)' --check-cfg 'cfg(boringssl)' --check-cfg 'cfg(libressl250)' --check-cfg 'cfg(libressl251)' --check-cfg 'cfg(libressl252)' --check-cfg 'cfg(libressl261)' --check-cfg 'cfg(libressl270)' --check-cfg 'cfg(libressl271)' --check-cfg 'cfg(libressl273)' --check-cfg 'cfg(libressl280)' --check-cfg 'cfg(libressl281)' --check-cfg 'cfg(libressl291)' --check-cfg 'cfg(libressl310)' --check-cfg 'cfg(libressl321)' --check-cfg 'cfg(libressl332)' --check-cfg 'cfg(libressl340)' --check-cfg 'cfg(libressl350)' --check-cfg 'cfg(libressl360)' --check-cfg 'cfg(libressl361)' --check-cfg 'cfg(libressl370)' --check-cfg 'cfg(libressl380)' --check-cfg 'cfg(libressl381)' --check-cfg 'cfg(libressl382)' --check-cfg 'cfg(libressl390)' --check-cfg 'cfg(libressl400)' --check-cfg 'cfg(ossl101)' --check-cfg 'cfg(ossl102)' --check-cfg 'cfg(ossl102f)' --check-cfg 'cfg(ossl102h)' --check-cfg 'cfg(ossl110)' --check-cfg 'cfg(ossl110f)' --check-cfg 'cfg(ossl110g)' --check-cfg 'cfg(ossl110h)' --check-cfg 'cfg(ossl111)' --check-cfg 'cfg(ossl111b)' --check-cfg 'cfg(ossl111c)' --check-cfg 'cfg(ossl111d)' --check-cfg 'cfg(ossl300)' --check-cfg 'cfg(ossl310)' --check-cfg 'cfg(ossl320)' --check-cfg 'cfg(ossl330)'` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: 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] running `Command { std: "docker" "inspect" "ba94cee31f14106ff3cfceb3aaf80e9919e3427a75c0ecf18bf78eadc851feb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba94cee31f14106ff3cfceb3aaf80e9919e3427a75c0ecf18bf78eadc851feb9", kill_on_drop: false }`
[INFO] [stdout] ba94cee31f14106ff3cfceb3aaf80e9919e3427a75c0ecf18bf78eadc851feb9
