[INFO] fetching crate async-weighted-semaphore 0.2.1...
[INFO] checking async-weighted-semaphore-0.2.1 against master#3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777 for pr-132289
[INFO] extracting crate async-weighted-semaphore 0.2.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate async-weighted-semaphore 0.2.1 on toolchain 3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "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-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 143 packages to latest compatible versions
[INFO] [stderr]       Adding async-channel v1.9.0 (available: v2.3.1)
[INFO] [stderr]       Adding futures-locks v0.6.0 (available: v0.7.1)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.8.5)
[INFO] [stderr]       Adding rand_xorshift v0.2.0 (available: v0.3.0)
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.41.0)
[INFO] [stderr]       Adding tokio-test v0.2.1 (available: v0.4.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-test v0.3.31
[INFO] [stderr]   Downloaded futures-locks v0.6.0
[INFO] [stderr]   Downloaded rand_xorshift v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84c46ec21b8c77373a40b9a6ab59286e2f8f53af89e6de1460e68bdf6c8d05b5
[INFO] running `Command { std: "docker" "start" "-a" "84c46ec21b8c77373a40b9a6ab59286e2f8f53af89e6de1460e68bdf6c8d05b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84c46ec21b8c77373a40b9a6ab59286e2f8f53af89e6de1460e68bdf6c8d05b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84c46ec21b8c77373a40b9a6ab59286e2f8f53af89e6de1460e68bdf6c8d05b5", kill_on_drop: false }`
[INFO] [stdout] 84c46ec21b8c77373a40b9a6ab59286e2f8f53af89e6de1460e68bdf6c8d05b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 720ac5388420f34d59f7b4d2d85eca7a252d2f9dd76f776ef6726e86ff026347
[INFO] running `Command { std: "docker" "start" "-a" "720ac5388420f34d59f7b4d2d85eca7a252d2f9dd76f776ef6726e86ff026347", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking net2 v0.2.39
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[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking serde_spanned v0.6.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling pulldown-cmark v0.9.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking unicase v2.8.0
[INFO] [stderr]     Checking async-std v1.13.0
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking async-weighted-semaphore v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking syn v2.0.85
[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] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking regex-automata v0.4.8
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking regex v1.11.1
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[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking version-sync v0.9.5
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling pin-project-internal v1.1.7
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking pin-project v1.1.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tokio-test v0.2.1
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking futures-test v0.3.31
[INFO] [stderr]     Checking futures-locks v0.6.0
[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: 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.25s
[INFO] running `Command { std: "docker" "inspect" "720ac5388420f34d59f7b4d2d85eca7a252d2f9dd76f776ef6726e86ff026347", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "720ac5388420f34d59f7b4d2d85eca7a252d2f9dd76f776ef6726e86ff026347", kill_on_drop: false }`
[INFO] [stdout] 720ac5388420f34d59f7b4d2d85eca7a252d2f9dd76f776ef6726e86ff026347
