[INFO] fetching crate cooler 0.0.0...
[INFO] checking cooler-0.0.0 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate cooler 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cooler 0.0.0 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cooler 0.0.0
[INFO] finished tweaking crates.io crate cooler 0.0.0
[INFO] tweaked toml for crates.io crate cooler 0.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate cooler 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b58a505c3e288ab1b7020169af6fd6c42d2f619cb448216265894f2b598b872e
[INFO] running `Command { std: "docker" "start" "-a" "b58a505c3e288ab1b7020169af6fd6c42d2f619cb448216265894f2b598b872e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b58a505c3e288ab1b7020169af6fd6c42d2f619cb448216265894f2b598b872e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b58a505c3e288ab1b7020169af6fd6c42d2f619cb448216265894f2b598b872e", kill_on_drop: false }`
[INFO] [stdout] b58a505c3e288ab1b7020169af6fd6c42d2f619cb448216265894f2b598b872e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73a710ad43f5d431560e8431ca13f3d4514ea1011e6e7038a9d2fd18b192f403
[INFO] running `Command { std: "docker" "start" "-a" "73a710ad43f5d431560e8431ca13f3d4514ea1011e6e7038a9d2fd18b192f403", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking gfx-hal v0.6.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking ash v0.31.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling imgui-sys v0.5.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking imgui v0.5.0
[INFO] [stderr]    Compiling dispose-derive v0.2.0
[INFO] [stderr]     Checking gfx-backend-vulkan v0.6.5
[INFO] [stderr]     Checking dispose v0.2.1
[INFO] [stderr]     Checking cooler v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let x = Disposable::new(MyRecord { a: MyUnit, x: 12 });
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let a = Disposable::new(MyEnum::Unit);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let b = Disposable::new(MyEnum::Record { a: MyUnit, x: 2 });
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let c = Disposable::new(MyEnum::Tuple(MyUnit, 27));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for the crate
[INFO] [stdout]   --> main.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / #![warn(missing_docs, clippy::all, clippy::pedantic, clippy::cargo)]
[INFO] [stdout] 2  | | #![deny(broken_intra_doc_links, missing_debug_implementations)]
[INFO] [stdout] 3  | |
[INFO] [stdout] 4  | | use dispose::{Disposable, Dispose, DisposeWith};
[INFO] [stdout] ...  |
[INFO] [stdout] 48 | |     println!("Hello, world!");
[INFO] [stdout] 49 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> main.rs:1:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | #![warn(missing_docs, clippy::all, clippy::pedantic, clippy::cargo)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> main.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let x = Disposable::new(MyRecord { a: MyUnit, x: 12 });
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> main.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let a = Disposable::new(MyEnum::Unit);
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> main.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let b = Disposable::new(MyEnum::Record { a: MyUnit, x: 2 });
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let c = Disposable::new(MyEnum::Tuple(MyUnit, 27));
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.79s
[INFO] running `Command { std: "docker" "inspect" "73a710ad43f5d431560e8431ca13f3d4514ea1011e6e7038a9d2fd18b192f403", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73a710ad43f5d431560e8431ca13f3d4514ea1011e6e7038a9d2fd18b192f403", kill_on_drop: false }`
[INFO] [stdout] 73a710ad43f5d431560e8431ca13f3d4514ea1011e6e7038a9d2fd18b192f403