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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
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[INFO] checking chrisz2zz/rust-concurrency-cookbook-code against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrisz2zz%2Frust-concurrency-cookbook-code" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chrisz2zz/rust-concurrency-cookbook-code
[INFO] finished tweaking git repo https://github.com/chrisz2zz/rust-concurrency-cookbook-code
[INFO] tweaked toml for git repo https://github.com/chrisz2zz/rust-concurrency-cookbook-code written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chrisz2zz/rust-concurrency-cookbook-code on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
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[INFO] crate git repo https://github.com/chrisz2zz/rust-concurrency-cookbook-code 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] d826a6f25bebdb11b1ddf1e363cd845df48658efe2ef142df2c8cb3d19b4b6ac
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[INFO] [stderr]    Compiling libc v0.2.151
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[INFO] [stderr]     Checking chapter_04_container_sync_primitive v0.1.0 (/opt/rustwide/workdir/chapter_04_container_sync_primitive)
[INFO] [stdout] warning: the feature `new_uninit` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> chapter_04_container_sync_primitive/examples/box.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(new_uninit)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `boxed`
[INFO] [stdout]  --> chapter_04_container_sync_primitive/examples/box.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let boxed = Box::new(val);
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_boxed`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `val`
[INFO] [stdout]   --> chapter_04_container_sync_primitive/examples/box.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let val = *boxed;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> chapter_04_container_sync_primitive/examples/box.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Cons(T, Box<List<T>>),
[INFO] [stdout]    |     ----    ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `List` 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] 18 -     Cons(T, Box<List<T>>),
[INFO] [stdout] 18 +     Cons(T, ()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking executor-service v0.2.2
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking crossbeam-epoch v0.9.17
[INFO] [stderr]     Checking crossbeam-channel v0.5.10
[INFO] [stdout] warning: unused variable: `reference1`
[INFO] [stdout]   --> chapter_04_container_sync_primitive/examples/rc.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let reference1 = Rc::clone(&data);
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reference1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reference2`
[INFO] [stdout]   --> chapter_04_container_sync_primitive/examples/rc.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let reference2 = Rc::clone(&data);
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reference2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ss1`
[INFO] [stdout]   --> chapter_04_container_sync_primitive/examples/rc.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let ss1 = &ss;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ss1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ss2`
[INFO] [stdout]   --> chapter_04_container_sync_primitive/examples/rc.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let ss2 = &ss;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ss2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking crossbeam-queue v0.3.10
[INFO] [stdout] warning: the feature `lazy_cell` has been stable since 1.80.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> chapter_04_container_sync_primitive/examples/cell.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(lazy_cell)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stdout] warning: unused variable: `reference1`
[INFO] [stdout]   --> chapter_04_container_sync_primitive/examples/cell.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let reference1 = Rc::clone(&data);
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reference1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reference2`
[INFO] [stdout]   --> chapter_04_container_sync_primitive/examples/cell.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |     let reference2 = Rc::clone(&data);
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reference2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ss1`
[INFO] [stdout]   --> chapter_04_container_sync_primitive/examples/cell.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let ss1 = &ss;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ss1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ss2`
[INFO] [stdout]   --> chapter_04_container_sync_primitive/examples/cell.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |     let ss2 = &ss;
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_ss2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rc` is never used
[INFO] [stdout]   --> chapter_04_container_sync_primitive/examples/cell.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn rc() {
[INFO] [stdout]    |    ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chapter_06_concurrency_collection v0.1.0 (/opt/rustwide/workdir/chapter_06_concurrency_collection)
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]    Compiling syn v2.0.48
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[INFO] [stderr]     Checking parking_lot v0.12.1
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[INFO] [stderr]     Checking parking_lot v0.5.5
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[INFO] [stderr]     Checking scheduled-thread-pool v0.2.7
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[INFO] [stderr]     Checking chapter_05_basic_sync_primitive v0.1.0 (/opt/rustwide/workdir/chapter_05_basic_sync_primitive)
[INFO] [stdout] warning: unused import: `cell::RefCell`
[INFO] [stdout]  --> chapter_05_basic_sync_primitive/examples/arc.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cell::RefCell,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]   --> chapter_05_basic_sync_primitive/examples/once.rs:33:14
[INFO] [stdout]    |
[INFO] [stdout] 33 |     unsafe { GLOBAL_CONFIG.as_ref().unwrap() }
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking mxo_env_logger v0.1.0
[INFO] [stderr]     Checking poolite v0.7.1
[INFO] [stderr]     Checking async-io v1.13.0
[INFO] [stderr]     Checking polling v3.3.1
[INFO] [stderr]     Checking async-io v2.2.2
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking async-signal v0.2.5
[INFO] [stderr]     Checking async-net v2.0.0
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-process v2.0.1
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking smol v2.0.0
[INFO] [stderr]     Checking pin-project v1.1.3
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[INFO] [stderr]     Checking fast-threadpool v0.3.0
[INFO] [stderr]     Checking go-spawn v0.1.2
[INFO] [stderr]     Checking chapter_01_thread v0.1.0 (/opt/rustwide/workdir/chapter_01_thread)
[INFO] [stdout] warning: the feature `thread_spawn_unchecked` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> chapter_01_thread/examples/thread_builder.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(thread_spawn_unchecked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `thread_spawn_unchecked` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> chapter_01_thread/examples/scoped_thread.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(thread_spawn_unchecked)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking rusty_pool v0.7.0
[INFO] [stderr]     Checking chapter_02_thread_pool v0.1.0 (/opt/rustwide/workdir/chapter_02_thread_pool)
[INFO] [stderr]     Checking chapter_03_async_await v0.1.0 (/opt/rustwide/workdir/chapter_03_async_await)
[INFO] [stdout] warning: unused import: `chapter_02_thread_pool::*`
[INFO] [stdout]  --> chapter_02_thread_pool/examples/threadpool.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use chapter_02_thread_pool::*;
[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: `chapter_02_thread_pool::*`
[INFO] [stdout]  --> chapter_02_thread_pool/examples/rusty_pool.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use chapter_02_thread_pool::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_closure` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> chapter_02_thread_pool/examples/rusty_pool.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `exclusive_range_pattern` has been stable since 1.80.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> chapter_02_thread_pool/examples/poolite.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(exclusive_range_pattern)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new` is never used
[INFO] [stdout]   --> chapter_02_thread_pool/examples/poolite.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn new() -> poolite::Pool {
[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 `scoped` is never used
[INFO] [stdout]   --> chapter_02_thread_pool/examples/poolite.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn scoped() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `new_with_builder` is never used
[INFO] [stdout]   --> chapter_02_thread_pool/examples/poolite.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn new_with_builder() -> poolite::Pool {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.10s
[INFO] running `Command { std: "docker" "inspect" "d826a6f25bebdb11b1ddf1e363cd845df48658efe2ef142df2c8cb3d19b4b6ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d826a6f25bebdb11b1ddf1e363cd845df48658efe2ef142df2c8cb3d19b4b6ac", kill_on_drop: false }`
[INFO] [stdout] d826a6f25bebdb11b1ddf1e363cd845df48658efe2ef142df2c8cb3d19b4b6ac
