[INFO] fetching crate qp 0.2.1...
[INFO] testing qp-0.2.1 against 1.95.0 for beta-1.96-2
[INFO] extracting crate qp 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate qp 0.2.1
[INFO] finished tweaking crates.io crate qp 0.2.1
[INFO] tweaked toml for crates.io crate qp 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate qp 0.2.1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate qp 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.0
[INFO] [stderr]   Downloaded quote v1.0.18
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.5
[INFO] [stderr]   Downloaded async-trait v0.1.56
[INFO] [stderr]   Downloaded proc-macro2 v1.0.39
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.8
[INFO] [stderr]   Downloaded once_cell v1.12.0
[INFO] [stderr]   Downloaded syn v1.0.96
[INFO] [stderr]   Downloaded tokio v1.19.2
[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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10be64b891bdea214d225ac20e2fdc48bec9220f6823b65029fa870f2bb19a43
[INFO] running `Command { std: "docker" "start" "-a" "10be64b891bdea214d225ac20e2fdc48bec9220f6823b65029fa870f2bb19a43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10be64b891bdea214d225ac20e2fdc48bec9220f6823b65029fa870f2bb19a43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10be64b891bdea214d225ac20e2fdc48bec9220f6823b65029fa870f2bb19a43", kill_on_drop: false }`
[INFO] [stdout] 10be64b891bdea214d225ac20e2fdc48bec9220f6823b65029fa870f2bb19a43
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] feb4b69467ffedf5b494fa711bd70b2c4d5f6abcf67d24aec53df546b93df414
[INFO] running `Command { std: "docker" "start" "-a" "feb4b69467ffedf5b494fa711bd70b2c4d5f6abcf67d24aec53df546b93df414", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling async-trait v0.1.56
[INFO] [stderr]    Compiling crossbeam-queue v0.3.5
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling qp v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync.rs:89:24
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn try_acquire(&self) -> Option<SemaphorePermit> {
[INFO] [stdout]    |                        ^^^^^            ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn try_acquire(&self) -> Option<SemaphorePermit<'_>> {
[INFO] [stdout]    |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.35s
[INFO] running `Command { std: "docker" "inspect" "feb4b69467ffedf5b494fa711bd70b2c4d5f6abcf67d24aec53df546b93df414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feb4b69467ffedf5b494fa711bd70b2c4d5f6abcf67d24aec53df546b93df414", kill_on_drop: false }`
[INFO] [stdout] feb4b69467ffedf5b494fa711bd70b2c4d5f6abcf67d24aec53df546b93df414
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9564d91845b3d8e8a12ed6b0973135af96729dcfc0b01c736b446e973e1933a7
[INFO] running `Command { std: "docker" "start" "-a" "9564d91845b3d8e8a12ed6b0973135af96729dcfc0b01c736b446e973e1933a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling once_cell v1.12.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync.rs:89:24
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn try_acquire(&self) -> Option<SemaphorePermit> {
[INFO] [stdout]    |                        ^^^^^            ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn try_acquire(&self) -> Option<SemaphorePermit<'_>> {
[INFO] [stdout]    |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling tokio v1.19.2
[INFO] [stderr]    Compiling qp v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]   --> examples/readme.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     drop(raw_int);
[INFO] [stdout]    |     ^^^^^-------^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          argument has type `i32`
[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] 60 -     drop(raw_int);
[INFO] [stdout] 60 +     let _ = raw_int;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/sync.rs:89:24
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn try_acquire(&self) -> Option<SemaphorePermit> {
[INFO] [stdout]    |                        ^^^^^            ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub fn try_acquire(&self) -> Option<SemaphorePermit<'_>> {
[INFO] [stdout]    |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.62s
[INFO] running `Command { std: "docker" "inspect" "9564d91845b3d8e8a12ed6b0973135af96729dcfc0b01c736b446e973e1933a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9564d91845b3d8e8a12ed6b0973135af96729dcfc0b01c736b446e973e1933a7", kill_on_drop: false }`
[INFO] [stdout] 9564d91845b3d8e8a12ed6b0973135af96729dcfc0b01c736b446e973e1933a7
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 740fbf8e0798e7d3780776398ae29d8c46b5855af6865579c0af484ffb419e15
[INFO] running `Command { std: "docker" "start" "-a" "740fbf8e0798e7d3780776398ae29d8c46b5855af6865579c0af484ffb419e15", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/sync.rs:89:24
[INFO] [stderr]    |
[INFO] [stderr] 89 |     pub fn try_acquire(&self) -> Option<SemaphorePermit> {
[INFO] [stderr]    |                        ^^^^^            ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                        |
[INFO] [stderr]    |                        the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 89 |     pub fn try_acquire(&self) -> Option<SemaphorePermit<'_>> {
[INFO] [stderr]    |                                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `qp` (lib) generated 1 warning (run `cargo fix --lib -p qp` to apply 1 suggestion)
[INFO] [stderr] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stderr]   --> examples/readme.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     drop(raw_int);
[INFO] [stderr]    |     ^^^^^-------^
[INFO] [stderr]    |          |
[INFO] [stderr]    |          argument has type `i32`
[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] 60 -     drop(raw_int);
[INFO] [stderr] 60 +     let _ = raw_int;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `qp` (example "readme") generated 1 warning
[INFO] [stderr] warning: `qp` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/qp-77e30c35d0732190)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test pool::tests::test_abort_acquire ... ok
[INFO] [stdout] test sync::tests::test_abort_acquire ... ok
[INFO] [stderr]      Running tests/counter.rs (/opt/rustwide/target/debug/deps/counter-fe21e6d9edc0de8c)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test main ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests qp
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/sync.rs - sync::Semaphore::new (line 20) ... ok
[INFO] [stdout] test src/sync.rs - sync::Semaphore::acquire (line 36) ... ok
[INFO] [stdout] test src/sync.rs - sync::Semaphore::try_acquire (line 76) ... ok
[INFO] [stdout] test src/sync.rs - sync::Semaphore::available_permits (line 56) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.56s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "740fbf8e0798e7d3780776398ae29d8c46b5855af6865579c0af484ffb419e15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "740fbf8e0798e7d3780776398ae29d8c46b5855af6865579c0af484ffb419e15", kill_on_drop: false }`
[INFO] [stdout] 740fbf8e0798e7d3780776398ae29d8c46b5855af6865579c0af484ffb419e15
