[INFO] fetching crate async-winit 0.2.1...
[INFO] checking async-winit-0.2.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate async-winit 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate async-winit 0.2.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-winit 0.2.1
[INFO] finished tweaking crates.io crate async-winit 0.2.1
[INFO] tweaked toml for crates.io crate async-winit 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate async-winit 0.2.1 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10c05e75846dd8e42eeb182adf9af57c5a0f6c722c63e414a24776ef2ade3135
[INFO] running `Command { std: "docker" "start" "-a" "10c05e75846dd8e42eeb182adf9af57c5a0f6c722c63e414a24776ef2ade3135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10c05e75846dd8e42eeb182adf9af57c5a0f6c722c63e414a24776ef2ade3135", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10c05e75846dd8e42eeb182adf9af57c5a0f6c722c63e414a24776ef2ade3135", kill_on_drop: false }`
[INFO] [stdout] 10c05e75846dd8e42eeb182adf9af57c5a0f6c722c63e414a24776ef2ade3135
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 643bcca80d445ccc6880c813b7d1ae6147e5b1bdcfbd27abb7039bbf31774c6b
[INFO] running `Command { std: "docker" "start" "-a" "643bcca80d445ccc6880c813b7d1ae6147e5b1bdcfbd27abb7039bbf31774c6b", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `Atomic`, `Mutex`, `OnceLock`
[INFO] [stdout]   --> src/sync.rs:35:32
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub use super::__private::{Atomic, Mutex, OnceLock};
[INFO] [stdout]    |                                ^^^^^^  ^^^^^  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Future` is imported redundantly
[INFO] [stdout]   --> src/filter.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::future::Future;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 | use futures_lite::prelude::*;
[INFO] [stdout]    |     ------------------------ the item `Future` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Atomic`, `Mutex`, `OnceLock`
[INFO] [stdout]   --> src/sync.rs:35:32
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub use super::__private::{Atomic, Mutex, OnceLock};
[INFO] [stdout]    |                                ^^^^^^  ^^^^^  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Future` is imported redundantly
[INFO] [stdout]   --> src/filter.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::future::Future;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 | use futures_lite::prelude::*;
[INFO] [stdout]    |     ------------------------ the item `Future` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CallOnDrop` is never constructed
[INFO] [stdout]    --> src/handler.rs:540:8
[INFO] [stdout]     |
[INFO] [stdout] 540 | struct CallOnDrop<F: FnMut()>(F);
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pop` is never used
[INFO] [stdout]    --> src/sync.rs:561:12
[INFO] [stdout]     |
[INFO] [stdout] 554 |     pub trait ConcurrentQueue<T> {
[INFO] [stdout]     |               --------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 561 |         fn pop(&self) -> Option<T>;
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `EventLoopPrivate` is never used
[INFO] [stdout]    --> src/platform.rs:110:19
[INFO] [stdout]     |
[INFO] [stdout] 110 |         EventLoop EventLoopPrivate
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `sealed_trait_with_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CallOnDrop` is never constructed
[INFO] [stdout]    --> src/handler.rs:540:8
[INFO] [stdout]     |
[INFO] [stdout] 540 | struct CallOnDrop<F: FnMut()>(F);
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pop` is never used
[INFO] [stdout]    --> src/sync.rs:561:12
[INFO] [stdout]     |
[INFO] [stdout] 554 |     pub trait ConcurrentQueue<T> {
[INFO] [stdout]     |               --------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 561 |         fn pop(&self) -> Option<T>;
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `EventLoopPrivate` is never used
[INFO] [stdout]    --> src/platform.rs:110:19
[INFO] [stdout]     |
[INFO] [stdout] 110 |         EventLoop EventLoopPrivate
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `sealed_trait_with_gen` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 12.19s
[INFO] running `Command { std: "docker" "inspect" "643bcca80d445ccc6880c813b7d1ae6147e5b1bdcfbd27abb7039bbf31774c6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "643bcca80d445ccc6880c813b7d1ae6147e5b1bdcfbd27abb7039bbf31774c6b", kill_on_drop: false }`
[INFO] [stdout] 643bcca80d445ccc6880c813b7d1ae6147e5b1bdcfbd27abb7039bbf31774c6b