[INFO] fetching crate distribuidos_sync 1.2.0...
[INFO] checking distribuidos_sync-1.2.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate distribuidos_sync 1.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate distribuidos_sync 1.2.0 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate distribuidos_sync 1.2.0
[INFO] finished tweaking crates.io crate distribuidos_sync 1.2.0
[INFO] tweaked toml for crates.io crate distribuidos_sync 1.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate distribuidos_sync 1.2.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0ddc098f067d668d35056240644a50e3dc4ea734c5b15578760f24eb232e6b9
[INFO] running `Command { std: "docker" "start" "-a" "b0ddc098f067d668d35056240644a50e3dc4ea734c5b15578760f24eb232e6b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0ddc098f067d668d35056240644a50e3dc4ea734c5b15578760f24eb232e6b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0ddc098f067d668d35056240644a50e3dc4ea734c5b15578760f24eb232e6b9", kill_on_drop: false }`
[INFO] [stdout] b0ddc098f067d668d35056240644a50e3dc4ea734c5b15578760f24eb232e6b9
[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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcf76336dc745f22f3e571adfc6fb84ea47645b413e6fdb11850dfd3161864a4
[INFO] running `Command { std: "docker" "start" "-a" "bcf76336dc745f22f3e571adfc6fb84ea47645b413e6fdb11850dfd3161864a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking distribuidos_sync v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::types::ExecuteError`
[INFO] [stdout]  --> src/thread_pool/infinite.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use super::types::ExecuteError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MessageSender` and `QueueError`
[INFO] [stdout]  --> src/worker_pool/worker.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use crate::types::{MessageSender, QueueError, SharedMessageReceiver};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SharedMessageReceiver`
[INFO] [stdout]  --> src/worker_pool/bounded.rs:2:55
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use crate::types::{MessageSyncSender, QueueError, SharedMessageReceiver};
[INFO] [stdout]   |                                                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `QueueError` and `SharedMessageReceiver`
[INFO] [stdout]  --> src/worker_pool/infinite.rs:3:39
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use crate::types::{MessageSender, QueueError, SharedMessageReceiver};
[INFO] [stdout]   |                                       ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SharedMessageReceiver`
[INFO] [stdout]  --> src/worker_pool/mod.rs:5:55
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use crate::types::{MessageSyncSender, QueueError, SharedMessageReceiver};
[INFO] [stdout]   |                                                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::types::ExecuteError`
[INFO] [stdout]  --> src/thread_pool/infinite.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub use super::types::ExecuteError;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MessageSender` and `QueueError`
[INFO] [stdout]  --> src/worker_pool/worker.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use crate::types::{MessageSender, QueueError, SharedMessageReceiver};
[INFO] [stdout]   |                        ^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SharedMessageReceiver`
[INFO] [stdout]  --> src/worker_pool/bounded.rs:2:55
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use crate::types::{MessageSyncSender, QueueError, SharedMessageReceiver};
[INFO] [stdout]   |                                                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `QueueError` and `SharedMessageReceiver`
[INFO] [stdout]  --> src/worker_pool/infinite.rs:3:39
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use crate::types::{MessageSender, QueueError, SharedMessageReceiver};
[INFO] [stdout]   |                                       ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SharedMessageReceiver`
[INFO] [stdout]  --> src/worker_pool/mod.rs:5:55
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use crate::types::{MessageSyncSender, QueueError, SharedMessageReceiver};
[INFO] [stdout]   |                                                       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "bcf76336dc745f22f3e571adfc6fb84ea47645b413e6fdb11850dfd3161864a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcf76336dc745f22f3e571adfc6fb84ea47645b413e6fdb11850dfd3161864a4", kill_on_drop: false }`
[INFO] [stdout] bcf76336dc745f22f3e571adfc6fb84ea47645b413e6fdb11850dfd3161864a4