[INFO] fetching crate async-weighted-semaphore 0.2.1...
[INFO] checking async-weighted-semaphore-0.2.1 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate async-weighted-semaphore 0.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate async-weighted-semaphore 0.2.1 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-weighted-semaphore 0.2.1
[INFO] finished tweaking crates.io crate async-weighted-semaphore 0.2.1
[INFO] tweaked toml for crates.io crate async-weighted-semaphore 0.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 203b1ba4610603a7e85a86409cb66a54ac704df7d5f245617faf8942ab676845
[INFO] running `Command { std: "docker" "start" "-a" "203b1ba4610603a7e85a86409cb66a54ac704df7d5f245617faf8942ab676845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "203b1ba4610603a7e85a86409cb66a54ac704df7d5f245617faf8942ab676845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "203b1ba4610603a7e85a86409cb66a54ac704df7d5f245617faf8942ab676845", kill_on_drop: false }`
[INFO] [stdout] 203b1ba4610603a7e85a86409cb66a54ac704df7d5f245617faf8942ab676845
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88b1ab5c93c1a8b88d9c5105479f4170bed373435c8b1325ad8c6797660b5fcc
[INFO] running `Command { std: "docker" "start" "-a" "88b1ab5c93c1a8b88d9c5105479f4170bed373435c8b1325ad8c6797660b5fcc", kill_on_drop: false }`
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[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/guard.rs:109:42
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 semaphore: self.semaphore.clone(),
[INFO] [stdout]     |                                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Semaphore` does not implement `Clone`, so calling `clone` on `&Semaphore` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 109 -                 semaphore: self.semaphore.clone(),
[INFO] [stdout] 109 +                 semaphore: self.semaphore,
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `Semaphore`, implement `Clone` for it
[INFO] [stdout]    --> src/semaphore.rs:26:1
[INFO] [stdout]     |
[INFO] [stdout] 26  + #[derive(Clone)]
[INFO] [stdout] 27  | pub struct Semaphore {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stdout] warning: unused import: `async_std::task::spawn`
[INFO] [stdout]   --> benches/mutex.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use async_std::task::spawn;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/guard.rs:109:42
[INFO] [stdout]     |
[INFO] [stdout] 109 |                 semaphore: self.semaphore.clone(),
[INFO] [stdout]     |                                          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Semaphore` does not implement `Clone`, so calling `clone` on `&Semaphore` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 109 -                 semaphore: self.semaphore.clone(),
[INFO] [stdout] 109 +                 semaphore: self.semaphore,
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `Semaphore`, implement `Clone` for it
[INFO] [stdout]    --> src/semaphore.rs:26:1
[INFO] [stdout]     |
[INFO] [stdout] 26  + #[derive(Clone)]
[INFO] [stdout] 27  | pub struct Semaphore {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.24s
[INFO] running `Command { std: "docker" "inspect" "88b1ab5c93c1a8b88d9c5105479f4170bed373435c8b1325ad8c6797660b5fcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b1ab5c93c1a8b88d9c5105479f4170bed373435c8b1325ad8c6797660b5fcc", kill_on_drop: false }`
[INFO] [stdout] 88b1ab5c93c1a8b88d9c5105479f4170bed373435c8b1325ad8c6797660b5fcc
