[INFO] fetching crate usync 0.2.1...
[INFO] testing usync-0.2.1 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate usync 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate usync 0.2.1
[INFO] finished tweaking crates.io crate usync 0.2.1
[INFO] tweaked toml for crates.io crate usync 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate usync 0.2.1 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 16 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1da583277bb09053ce6f29fb0828f73b89b713ed6300b77c368fad0e4f625c03
[INFO] running `Command { std: "docker" "start" "-a" "1da583277bb09053ce6f29fb0828f73b89b713ed6300b77c368fad0e4f625c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1da583277bb09053ce6f29fb0828f73b89b713ed6300b77c368fad0e4f625c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1da583277bb09053ce6f29fb0828f73b89b713ed6300b77c368fad0e4f625c03", kill_on_drop: false }`
[INFO] [stdout] 1da583277bb09053ce6f29fb0828f73b89b713ed6300b77c368fad0e4f625c03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2a803d69273558dfef46737f1b96636557badefea6534e80b926bf308849ac8
[INFO] running `Command { std: "docker" "start" "-a" "d2a803d69273558dfef46737f1b96636557badefea6534e80b926bf308849ac8", kill_on_drop: false }`
[INFO] [stderr]    Compiling usync v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `usync_tsan_enabled`
[INFO] [stdout]   --> src/shared/mod.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |     if cfg!(usync_tsan_enabled) {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(usync_tsan_enabled)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(usync_tsan_enabled)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fetch_add` is never used
[INFO] [stdout]   --> src/shared/strict_provenance.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub(crate) trait AtomicPtrRmw<T> {
[INFO] [stdout]    |                  ------------ method in this trait
[INFO] [stdout] 48 |     fn fetch_add(&self, value: T, ordering: Ordering) -> T;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/shared/event.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         drop(self);
[INFO] [stdout]    |         ^^^^^----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `Pin<&Event>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 69 -         drop(self);
[INFO] [stdout] 69 +         let _ = self;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/shared/parker.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |             drop(self);
[INFO] [stdout]    |             ^^^^^----^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&Parker`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 91 -             drop(self);
[INFO] [stdout] 91 +             let _ = self;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "d2a803d69273558dfef46737f1b96636557badefea6534e80b926bf308849ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2a803d69273558dfef46737f1b96636557badefea6534e80b926bf308849ac8", kill_on_drop: false }`
[INFO] [stdout] d2a803d69273558dfef46737f1b96636557badefea6534e80b926bf308849ac8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4f235643a18e716ceabaa3b974aeb8a488a61140b94361cfd22f0edd8b2ad89
[INFO] running `Command { std: "docker" "start" "-a" "d4f235643a18e716ceabaa3b974aeb8a488a61140b94361cfd22f0edd8b2ad89", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stdout] warning: unexpected `cfg` condition name: `usync_tsan_enabled`
[INFO] [stdout]   --> src/shared/mod.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |     if cfg!(usync_tsan_enabled) {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(usync_tsan_enabled)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(usync_tsan_enabled)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fetch_add` is never used
[INFO] [stdout]   --> src/shared/strict_provenance.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub(crate) trait AtomicPtrRmw<T> {
[INFO] [stdout]    |                  ------------ method in this trait
[INFO] [stdout] 48 |     fn fetch_add(&self, value: T, ordering: Ordering) -> T;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/shared/event.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         drop(self);
[INFO] [stdout]    |         ^^^^^----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `Pin<&Event>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 69 -         drop(self);
[INFO] [stdout] 69 +         let _ = self;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/shared/parker.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |             drop(self);
[INFO] [stdout]    |             ^^^^^----^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&Parker`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 91 -             drop(self);
[INFO] [stdout] 91 +             let _ = self;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.6
[INFO] [stderr]    Compiling usync v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `usync_tsan_enabled`
[INFO] [stdout]   --> src/shared/mod.rs:19:13
[INFO] [stdout]    |
[INFO] [stdout] 19 |     if cfg!(usync_tsan_enabled) {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(usync_tsan_enabled)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(usync_tsan_enabled)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `fetch_add` is never used
[INFO] [stdout]   --> src/shared/strict_provenance.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub(crate) trait AtomicPtrRmw<T> {
[INFO] [stdout]    |                  ------------ method in this trait
[INFO] [stdout] 48 |     fn fetch_add(&self, value: T, ordering: Ordering) -> T;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> src/shared/event.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         drop(self);
[INFO] [stdout]    |         ^^^^^----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `Pin<&Event>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 69 -         drop(self);
[INFO] [stdout] 69 +         let _ = self;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/shared/parker.rs:91:13
[INFO] [stdout]    |
[INFO] [stdout] 91 |             drop(self);
[INFO] [stdout]    |             ^^^^^----^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  argument has type `&Parker`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 91 -             drop(self);
[INFO] [stdout] 91 +             let _ = self;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.56s
[INFO] running `Command { std: "docker" "inspect" "d4f235643a18e716ceabaa3b974aeb8a488a61140b94361cfd22f0edd8b2ad89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4f235643a18e716ceabaa3b974aeb8a488a61140b94361cfd22f0edd8b2ad89", kill_on_drop: false }`
[INFO] [stdout] d4f235643a18e716ceabaa3b974aeb8a488a61140b94361cfd22f0edd8b2ad89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2f547ec77f5670ad0ed0bbd5ee2837c43a14277192be6bed867bbb2c297e3264
[INFO] running `Command { std: "docker" "start" "-a" "2f547ec77f5670ad0ed0bbd5ee2837c43a14277192be6bed867bbb2c297e3264", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition name: `usync_tsan_enabled`
[INFO] [stderr]   --> src/shared/mod.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     if cfg!(usync_tsan_enabled) {
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stderr]    = help: consider using a Cargo feature instead
[INFO] [stderr]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stderr]             [lints.rust]
[INFO] [stderr]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(usync_tsan_enabled)'] }
[INFO] [stderr]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(usync_tsan_enabled)");` to the top of the `build.rs`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `fetch_add` is never used
[INFO] [stderr]   --> src/shared/strict_provenance.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 47 | pub(crate) trait AtomicPtrRmw<T> {
[INFO] [stderr]    |                  ------------ method in this trait
[INFO] [stderr] 48 |     fn fetch_add(&self, value: T, ordering: Ordering) -> T;
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stderr]   --> src/shared/event.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |         drop(self);
[INFO] [stderr]    |         ^^^^^----^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              argument has type `Pin<&Event>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 69 -         drop(self);
[INFO] [stderr] 69 +         let _ = self;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> src/shared/parker.rs:91:13
[INFO] [stderr]    |
[INFO] [stderr] 91 |             drop(self);
[INFO] [stderr]    |             ^^^^^----^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  argument has type `&Parker`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 91 -             drop(self);
[INFO] [stderr] 91 +             let _ = self;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `usync` (lib) generated 4 warnings
[INFO] [stderr] warning: `usync` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/usync-3e87e00ac44e78a1)
[INFO] [stdout] 
[INFO] [stdout] running 68 tests
[INFO] [stdout] test condvar::tests::notify_one_return_false ... ok
[INFO] [stdout] test condvar::tests::notify_one ... ok
[INFO] [stdout] test condvar::tests::smoke ... ok
[INFO] [stdout] test condvar::tests::notify_one_return_true ... ok
[INFO] [stdout] test condvar::tests::test_debug_condvar ... ok
[INFO] [stdout] test condvar::tests::test_condvar_requeue ... ok
[INFO] [stdout] test condvar::tests::wait_for ... ok
[INFO] [stdout] test condvar::tests::notify_all ... ok
[INFO] [stdout] test condvar::tests::wait_until ... ok
[INFO] [stdout] test condvar::tests::notify_all_return ... ok
[INFO] [stdout] test condvar::tests::two_mutexes_disjoint ... ok
[INFO] [stdout] test condvar::tests::test_parking_lot_issue_129 ... ok
[INFO] [stdout] test condvar::tests::two_mutexes ... ok
[INFO] [stdout] test mutex::tests::lots_and_lots ... ok
[INFO] [stdout] test mutex::tests::smoke ... ok
[INFO] [stdout] test mutex::tests::test_get_mut ... ok
[INFO] [stdout] test mutex::tests::test_into_inner ... ok
[INFO] [stdout] test mutex::tests::test_into_inner_drop ... ok
[INFO] [stdout] test mutex::tests::test_mutex_arc_access_in_unwind ... ok
[INFO] [stdout] test mutex::tests::test_mutex_arc_condvar ... ok
[INFO] [stdout] test mutex::tests::test_mutex_arc_nested ... ok
[INFO] [stdout] test mutex::tests::test_mutex_debug ... ok
[INFO] [stdout] test mutex::tests::test_mutex_unsized ... ok
[INFO] [stdout] test mutex::tests::test_mutexguard_sync ... ok
[INFO] [stdout] test mutex::tests::try_lock ... ok
[INFO] [stdout] test once::tests::poison_bad ... ok
[INFO] [stdout] test once::tests::smoke_once ... ok
[INFO] [stdout] test condvar::webkit_queue_test::one_producer_ten_consumers_one_slot ... ok
[INFO] [stdout] test once::tests::test_once_debug ... ok
[INFO] [stdout] test once::tests::stampede_once ... ok
[INFO] [stdout] test reentrant_mutex::tests::is_mutex ... ok
[INFO] [stdout] test reentrant_mutex::tests::smoke ... ok
[INFO] [stdout] test reentrant_mutex::tests::test_reentrant_mutex_debug ... ok
[INFO] [stdout] test reentrant_mutex::tests::trylock_works ... ok
[INFO] [stdout] test once::tests::wait_for_force_to_finish ... ok
[INFO] [stdout] test rwlock::tests::smoke ... ok
[INFO] [stdout] test rwlock::tests::test_clone ... ok
[INFO] [stdout] test rwlock::tests::test_get_mut ... ok
[INFO] [stdout] test rwlock::tests::test_into_inner ... ok
[INFO] [stdout] test rwlock::tests::test_into_inner_drop ... ok
[INFO] [stdout] test rwlock::tests::test_parking_lot_issue_203 ... ok
[INFO] [stdout] test rwlock::tests::test_rw_arc ... ok
[INFO] [stdout] test rwlock::tests::test_rw_arc_access_in_unwind ... ok
[INFO] [stdout] test rwlock::tests::test_rw_arc_no_poison_rr ... ok
[INFO] [stdout] test rwlock::tests::test_rw_arc_no_poison_rw ... ok
[INFO] [stdout] test rwlock::tests::test_rw_arc_no_poison_wr ... ok
[INFO] [stdout] test rwlock::tests::test_rw_arc_no_poison_ww ... ok
[INFO] [stdout] test rwlock::tests::test_rw_write_is_locked ... ok
[INFO] [stdout] test rwlock::tests::test_rwlock_debug ... ok
[INFO] [stdout] test rwlock::tests::test_rwlock_try_read ... ok
[INFO] [stdout] test rwlock::tests::test_rwlock_try_write ... ok
[INFO] [stdout] test rwlock::tests::test_rwlock_unsized ... ok
[INFO] [stdout] test rwlock::tests::test_rwlockguard_sync ... ok
[INFO] [stdout] test rwlock::tests::frob ... ok
[INFO] [stdout] test condvar::webkit_queue_test::one_producer_ten_consumers_hundred_slots_notify_one ... ok
[INFO] [stdout] test condvar::webkit_queue_test::new_test_without_timeout_5 ... ok
[INFO] [stdout] test condvar::webkit_queue_test::one_producer_ten_consumers_hundred_slots_notify_all ... ok
[INFO] [stdout] test condvar::webkit_queue_test::ten_producers_one_consumer_hundred_slots_notify_one ... ok
[INFO] [stdout] test condvar::webkit_queue_test::one_producer_one_consumer_hundred_slots ... ok
[INFO] [stdout] test condvar::webkit_queue_test::ten_producers_one_consumer_hundred_slots_notify_all ... ok
[INFO] [stdout] test condvar::webkit_queue_test::ten_producers_one_consumer_one_slot ... ok
[INFO] [stdout] test condvar::webkit_queue_test::ten_producers_ten_consumers_hundred_slots_notify_one ... ok
[INFO] [stdout] test condvar::webkit_queue_test::ten_producers_ten_consumers_one_slot ... ok
[INFO] [stdout] test condvar::webkit_queue_test::ten_producers_ten_consumers_hundred_slots_notify_all ... ok
[INFO] [stdout] test condvar::webkit_queue_test::one_producer_one_consumer_one_slot ... ok
[INFO] [stdout] test condvar::webkit_queue_test::sanity_check_queue_timeout ... ok
[INFO] [stdout] test condvar::webkit_queue_test::sanity_check_queue ... ok
[INFO] [stdout] test condvar::webkit_queue_test::one_producer_one_consumer_one_slot_timeout ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 68 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.32s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests usync
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/barrier.rs - barrier::BarrierWaitResult (line 305) ... ok
[INFO] [stdout] test src/once.rs - once::Once (line 28) ... ok
[INFO] [stdout] test src/condvar.rs - condvar::Condvar::notify_one (line 318) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::BarrierWaitResult::is_leader (line 330) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier::new (line 82) ... ok
[INFO] [stdout] test src/once.rs - once::Once::call_once (line 105) ... ok
[INFO] [stdout] test src/rwlock.rs - rwlock::RwLock (line 735) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier (line 18) ... ok
[INFO] [stdout] test src/condvar.rs - condvar::Condvar (line 47) ... ok
[INFO] [stdout] test src/barrier.rs - barrier::Barrier::wait (line 107) ... ok
[INFO] [stdout] test src/mutex.rs - mutex::Mutex (line 80) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.96s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2f547ec77f5670ad0ed0bbd5ee2837c43a14277192be6bed867bbb2c297e3264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f547ec77f5670ad0ed0bbd5ee2837c43a14277192be6bed867bbb2c297e3264", kill_on_drop: false }`
[INFO] [stdout] 2f547ec77f5670ad0ed0bbd5ee2837c43a14277192be6bed867bbb2c297e3264
