[INFO] fetching crate libsync 0.3.0...
[INFO] testing libsync-0.3.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate libsync 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate libsync 0.3.0
[INFO] finished tweaking crates.io crate libsync 0.3.0
[INFO] tweaked toml for crates.io crate libsync 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate libsync 0.3.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate libsync 0.3.0 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded delegate v0.13.5
[INFO] [stderr]   Downloaded saa v5.5.0
[INFO] [stderr]   Downloaded sdd v4.6.3
[INFO] [stderr]   Downloaded accessorise v0.2.0
[INFO] [stderr]   Downloaded inc_dec v0.1.0
[INFO] [stderr]   Downloaded scc v3.6.5
[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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf48e18fc07468772cd0e4ea4d58443b61657edb2dc45013652b31473df76f52
[INFO] running `Command { std: "docker" "start" "-a" "bf48e18fc07468772cd0e4ea4d58443b61657edb2dc45013652b31473df76f52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf48e18fc07468772cd0e4ea4d58443b61657edb2dc45013652b31473df76f52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf48e18fc07468772cd0e4ea4d58443b61657edb2dc45013652b31473df76f52", kill_on_drop: false }`
[INFO] [stdout] bf48e18fc07468772cd0e4ea4d58443b61657edb2dc45013652b31473df76f52
[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_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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93849d7d27876d867ff8d23f49680d604c8277d06cd3381b3f84e128f6bceb5f
[INFO] running `Command { std: "docker" "start" "-a" "93849d7d27876d867ff8d23f49680d604c8277d06cd3381b3f84e128f6bceb5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling accessorise v0.2.0
[INFO] [stderr]    Compiling inc_dec v0.1.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling delegate v0.13.5
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling libsync v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `super::PreferredMutexType`
[INFO] [stdout]    --> src/waker_permit_queue.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 | use super::PreferredMutexType;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ no `PreferredMutexType` in the root
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:121:10
[INFO] [stdout]     |
[INFO] [stdout] 120 | #[cfg(feature="use_std_sync")]
[INFO] [stdout]     |       ---------------------- the item is gated behind the `use_std_sync` feature
[INFO] [stdout] 121 | pub type PreferredMutexType<T> = ::std::sync::Mutex<T>;
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:127:10
[INFO] [stdout]     |
[INFO] [stdout] 126 | #[cfg(feature="use_parking_lot_sync")]
[INFO] [stdout]     |       ------------------------------ the item is gated behind the `use_parking_lot_sync` feature
[INFO] [stdout] 127 | pub type PreferredMutexType<T> = parking_lot::Mutex<T>;
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:133:10
[INFO] [stdout]     |
[INFO] [stdout] 132 | #[cfg(feature="use_parking_lot_fair_sync")]
[INFO] [stdout]     |       ----------------------------------- the item is gated behind the `use_parking_lot_fair_sync` feature
[INFO] [stdout] 133 | pub type PreferredMutexType<T> = parking_lot::FairMutex<T>;
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `super::PreferredMutexType`
[INFO] [stdout]    --> src/limited_waker_permit_queue.rs:28:5
[INFO] [stdout]     |
[INFO] [stdout]  28 | use super::PreferredMutexType;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ no `PreferredMutexType` in the root
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:121:10
[INFO] [stdout]     |
[INFO] [stdout] 120 | #[cfg(feature="use_std_sync")]
[INFO] [stdout]     |       ---------------------- the item is gated behind the `use_std_sync` feature
[INFO] [stdout] 121 | pub type PreferredMutexType<T> = ::std::sync::Mutex<T>;
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:127:10
[INFO] [stdout]     |
[INFO] [stdout] 126 | #[cfg(feature="use_parking_lot_sync")]
[INFO] [stdout]     |       ------------------------------ the item is gated behind the `use_parking_lot_sync` feature
[INFO] [stdout] 127 | pub type PreferredMutexType<T> = parking_lot::Mutex<T>;
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/lib.rs:133:10
[INFO] [stdout]     |
[INFO] [stdout] 132 | #[cfg(feature="use_parking_lot_fair_sync")]
[INFO] [stdout]     |       ----------------------------------- the item is gated behind the `use_parking_lot_fair_sync` feature
[INFO] [stdout] 133 | pub type PreferredMutexType<T> = parking_lot::FairMutex<T>;
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/waker_permit_queue.rs:288:34
[INFO] [stdout]     |
[INFO] [stdout] 288 |         if let Some(val) = &mut *mg
[INFO] [stdout]     |                                  ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/waker_permit_queue.rs:308:34
[INFO] [stdout]     |
[INFO] [stdout] 308 |         if let Some(val) = &mut *mg
[INFO] [stdout]     |                                  ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/waker_permit_queue.rs:328:9
[INFO] [stdout]     |
[INFO] [stdout] 328 |         mg.is_none()
[INFO] [stdout]     |         ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/waker_permit_queue.rs:437:38
[INFO] [stdout]     |
[INFO] [stdout] 437 |             if let Some(val) = &mut *mg
[INFO] [stdout]     |                                      ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/waker_permit_queue.rs:543:38
[INFO] [stdout]     |
[INFO] [stdout] 543 |             if let Some(val) = &mut *mg
[INFO] [stdout]     |                                      ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/waker_permit_queue.rs:617:34
[INFO] [stdout]     |
[INFO] [stdout] 617 |         if let Some(val) = &mut *mg
[INFO] [stdout]     |                                  ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/waker_permit_queue.rs:661:34
[INFO] [stdout]     |
[INFO] [stdout] 661 |         if let Some(val) = &mut *mg
[INFO] [stdout]     |                                  ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/waker_permit_queue.rs:755:29
[INFO] [stdout]     |
[INFO] [stdout] 755 |             opt_internals = mg.take();
[INFO] [stdout]     |                             ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/waker_permit_queue.rs:890:29
[INFO] [stdout]     |
[INFO] [stdout] 890 |                 match &mut *mg
[INFO] [stdout]     |                             ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/waker_permit_queue.rs:997:29
[INFO] [stdout]     |
[INFO] [stdout] 997 |                 match &mut *mg
[INFO] [stdout]     |                             ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]     --> src/waker_permit_queue.rs:1102:38
[INFO] [stdout]      |
[INFO] [stdout] 1102 |             if let Some(wqi) = &mut *mg
[INFO] [stdout]      |                                      ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/limited_waker_permit_queue.rs:289:34
[INFO] [stdout]     |
[INFO] [stdout] 289 |         if let Some(val) = &mut *mg
[INFO] [stdout]     |                                  ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/limited_waker_permit_queue.rs:309:34
[INFO] [stdout]     |
[INFO] [stdout] 309 |         if let Some(val) = &mut *mg
[INFO] [stdout]     |                                  ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/limited_waker_permit_queue.rs:329:9
[INFO] [stdout]     |
[INFO] [stdout] 329 |         mg.is_none()
[INFO] [stdout]     |         ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/limited_waker_permit_queue.rs:344:30
[INFO] [stdout]     |
[INFO] [stdout] 344 |         if let Some(val) = &*mg
[INFO] [stdout]     |                              ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/limited_waker_permit_queue.rs:366:30
[INFO] [stdout]     |
[INFO] [stdout] 366 |         if let Some(val) = &*mg
[INFO] [stdout]     |                              ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/limited_waker_permit_queue.rs:484:38
[INFO] [stdout]     |
[INFO] [stdout] 484 |             if let Some(val) = &mut *mg
[INFO] [stdout]     |                                      ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/limited_waker_permit_queue.rs:616:38
[INFO] [stdout]     |
[INFO] [stdout] 616 |             if let Some(val) = &mut *mg
[INFO] [stdout]     |                                      ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/limited_waker_permit_queue.rs:714:38
[INFO] [stdout]     |
[INFO] [stdout] 714 |             if let Some(val) = &mut *mg
[INFO] [stdout]     |                                      ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/limited_waker_permit_queue.rs:814:38
[INFO] [stdout]     |
[INFO] [stdout] 814 |             if let Some(val) = &mut *mg
[INFO] [stdout]     |                                      ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]    --> src/limited_waker_permit_queue.rs:945:29
[INFO] [stdout]     |
[INFO] [stdout] 945 |             opt_internals = mg.take();
[INFO] [stdout]     |                             ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]     --> src/limited_waker_permit_queue.rs:1089:29
[INFO] [stdout]      |
[INFO] [stdout] 1089 |                 match &mut *mg
[INFO] [stdout]      |                             ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]     --> src/limited_waker_permit_queue.rs:1231:29
[INFO] [stdout]      |
[INFO] [stdout] 1231 |                 match &mut *mg
[INFO] [stdout]      |                             ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]     --> src/limited_waker_permit_queue.rs:1345:38
[INFO] [stdout]      |
[INFO] [stdout] 1345 |             if let Some(wqi) = &mut *mg
[INFO] [stdout]      |                                      ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]     --> src/limited_waker_permit_queue.rs:1442:29
[INFO] [stdout]      |
[INFO] [stdout] 1442 |                 match &mut *mg
[INFO] [stdout]      |                             ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]     --> src/limited_waker_permit_queue.rs:1577:29
[INFO] [stdout]      |
[INFO] [stdout] 1577 |                 match &mut *mg
[INFO] [stdout]      |                             ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `mg` in this scope
[INFO] [stdout]     --> src/limited_waker_permit_queue.rs:1710:38
[INFO] [stdout]      |
[INFO] [stdout] 1710 |             if let Some(wqi) = &mut *mg
[INFO] [stdout]      |                                      ^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/results.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{error::Error, fmt::{Debug, Display, Formatter}};
[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: `Arc`, `AtomicBool`, `AtomicUsize`, `Ordering`, and `Weak`
[INFO] [stdout]  --> src/shared_details.rs:1:39
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Debug, sync::{atomic::{AtomicBool, AtomicUsize, Ordering}, Arc, Weak}};
[INFO] [stdout]   |                                       ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^   ^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicBool`, `AtomicUsize`, and `Ordering`
[INFO] [stdout]  --> src/bounded_shared_details.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
[INFO] [stdout]   |                         ^^^^^^^^^^  ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicUsize` and `Ordering`
[INFO] [stdout]   --> src/waker_permit_queue.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::sync::atomic::{AtomicUsize, Ordering};
[INFO] [stdout]    |                         ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]   --> src/waker_permit_queue.rs:12:33
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Waker`
[INFO] [stdout]   --> src/waker_permit_queue.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::task::{Poll, Waker};
[INFO] [stdout]    |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `paste::paste`
[INFO] [stdout]   --> src/waker_permit_queue.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use paste::paste;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `accessorise::impl_get_val`
[INFO] [stdout]   --> src/waker_permit_queue.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use accessorise::impl_get_val;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AtomicUsize` and `Ordering`
[INFO] [stdout]   --> src/limited_waker_permit_queue.rs:10:25
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::sync::atomic::{AtomicUsize, Ordering};
[INFO] [stdout]    |                         ^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]   --> src/limited_waker_permit_queue.rs:12:33
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::collections::{HashMap, HashSet, VecDeque};
[INFO] [stdout]    |                                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Waker`
[INFO] [stdout]   --> src/limited_waker_permit_queue.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::task::{Poll, Waker};
[INFO] [stdout]    |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libsync` (lib) due to 29 previous errors; 11 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "93849d7d27876d867ff8d23f49680d604c8277d06cd3381b3f84e128f6bceb5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93849d7d27876d867ff8d23f49680d604c8277d06cd3381b3f84e128f6bceb5f", kill_on_drop: false }`
[INFO] [stdout] 93849d7d27876d867ff8d23f49680d604c8277d06cd3381b3f84e128f6bceb5f