[INFO] fetching crate extra_waiters 1.0.1...
[INFO] testing extra_waiters-1.0.1 against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] extracting crate extra_waiters 1.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate extra_waiters 1.0.1
[INFO] finished tweaking crates.io crate extra_waiters 1.0.1
[INFO] tweaked toml for crates.io crate extra_waiters 1.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate extra_waiters 1.0.1 on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding parking_lot_core v0.8.6 (available: v0.9.12)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 525519bc5007f2f902b4baeaa5ef2e97d497bf4fd8e21e62edb11d40458e77a8
[INFO] running `Command { std: "docker" "start" "-a" "525519bc5007f2f902b4baeaa5ef2e97d497bf4fd8e21e62edb11d40458e77a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "525519bc5007f2f902b4baeaa5ef2e97d497bf4fd8e21e62edb11d40458e77a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "525519bc5007f2f902b4baeaa5ef2e97d497bf4fd8e21e62edb11d40458e77a8", kill_on_drop: false }`
[INFO] [stdout] 525519bc5007f2f902b4baeaa5ef2e97d497bf4fd8e21e62edb11d40458e77a8
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ebe0a51d4d1cfd60afc80ba1fde4eb578d224363237a5c69a9366f1ec43f9f6
[INFO] running `Command { std: "docker" "start" "-a" "7ebe0a51d4d1cfd60afc80ba1fde4eb578d224363237a5c69a9366f1ec43f9f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling extra_waiters v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/spinlock_waiter.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn lock(&self) -> SpinlockGuard {
[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] 19 |     pub fn lock(&self) -> SpinlockGuard<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/spinlock_waiter.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn try_lock(&self) -> Option<SpinlockGuard> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn try_lock(&self) -> Option<SpinlockGuard<'_>> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "7ebe0a51d4d1cfd60afc80ba1fde4eb578d224363237a5c69a9366f1ec43f9f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ebe0a51d4d1cfd60afc80ba1fde4eb578d224363237a5c69a9366f1ec43f9f6", kill_on_drop: false }`
[INFO] [stdout] 7ebe0a51d4d1cfd60afc80ba1fde4eb578d224363237a5c69a9366f1ec43f9f6
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 919d716ba2e8b3d1565190023f2d65a4ec4930dc6b8c621ec775c176bbb0c197
[INFO] running `Command { std: "docker" "start" "-a" "919d716ba2e8b3d1565190023f2d65a4ec4930dc6b8c621ec775c176bbb0c197", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/spinlock_waiter.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn lock(&self) -> SpinlockGuard {
[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] 19 |     pub fn lock(&self) -> SpinlockGuard<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/spinlock_waiter.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn try_lock(&self) -> Option<SpinlockGuard> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn try_lock(&self) -> Option<SpinlockGuard<'_>> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling extra_waiters v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/spinlock_waiter.rs:19:17
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn lock(&self) -> SpinlockGuard {
[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] 19 |     pub fn lock(&self) -> SpinlockGuard<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/spinlock_waiter.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn try_lock(&self) -> Option<SpinlockGuard> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn try_lock(&self) -> Option<SpinlockGuard<'_>> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "919d716ba2e8b3d1565190023f2d65a4ec4930dc6b8c621ec775c176bbb0c197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "919d716ba2e8b3d1565190023f2d65a4ec4930dc6b8c621ec775c176bbb0c197", kill_on_drop: false }`
[INFO] [stdout] 919d716ba2e8b3d1565190023f2d65a4ec4930dc6b8c621ec775c176bbb0c197
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 973b8e00b89e643c9c5f3a4cd105b68008ae1edf5a3bb089e71e9598fef099a1
[INFO] running `Command { std: "docker" "start" "-a" "973b8e00b89e643c9c5f3a4cd105b68008ae1edf5a3bb089e71e9598fef099a1", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/spinlock_waiter.rs:19:17
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn lock(&self) -> SpinlockGuard {
[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] 19 |     pub fn lock(&self) -> SpinlockGuard<'_> {
[INFO] [stderr]    |                                        ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/spinlock_waiter.rs:32:21
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn try_lock(&self) -> Option<SpinlockGuard> {
[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] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn try_lock(&self) -> Option<SpinlockGuard<'_>> {
[INFO] [stderr]    |                                                   ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `extra_waiters` (lib) generated 2 warnings (run `cargo fix --lib -p extra_waiters` to apply 2 suggestions)
[INFO] [stderr] warning: `extra_waiters` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/extra_waiters-6f9cc25820f645cb)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test attentive_waiter::tests::ensure_const ... ok
[INFO] [stdout] test attentive_waiter::tests::timeout ... ok
[INFO] [stdout] test once_waiter::tests::create ... ok
[INFO] [stdout] test spinlock_waiter::tests::create ... ok
[INFO] [stdout] test spinlock_waiter::tests::lock ... ok
[INFO] [stdout] test spinlock_waiter::tests::unlock ... ok
[INFO] [stdout] test attentive_waiter::tests::wait_hooked ... ok
[INFO] [stdout] test attentive_waiter::tests::wait ... ok
[INFO] [stdout] test once_waiter::tests::ensure_once ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests extra_waiters
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/attentive_waiter.rs - attentive_waiter::AttentiveWaiter (line 21) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/attentive_waiter.rs - attentive_waiter::AttentiveWaiter (line 21) stdout ----
[INFO] [stdout] error[E0282]: type annotations needed for `Vec<_>`
[INFO] [stdout]   --> src/attentive_waiter.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | let mut items = Vec::new();
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |         if item.try_lock() {
[INFO] [stdout]    |            ---- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `items` an explicit type, where the placeholders `_` are specified
[INFO] [stdout]    |
[INFO] [stdout] 31 | let mut items: Vec<T> = Vec::new();
[INFO] [stdout]    |              ++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/attentive_waiter.rs - attentive_waiter::AttentiveWaiter (line 21)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "973b8e00b89e643c9c5f3a4cd105b68008ae1edf5a3bb089e71e9598fef099a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "973b8e00b89e643c9c5f3a4cd105b68008ae1edf5a3bb089e71e9598fef099a1", kill_on_drop: false }`
[INFO] [stdout] 973b8e00b89e643c9c5f3a4cd105b68008ae1edf5a3bb089e71e9598fef099a1
