[INFO] fetching crate extra_waiters 1.0.1...
[INFO] testing extra_waiters-1.0.1 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate extra_waiters 1.0.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate extra_waiters 1.0.1 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c64f4b0664c11011d18c7516601ee568064214d109c053732a0685ffa7ed3ad5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c64f4b0664c11011d18c7516601ee568064214d109c053732a0685ffa7ed3ad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c64f4b0664c11011d18c7516601ee568064214d109c053732a0685ffa7ed3ad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c64f4b0664c11011d18c7516601ee568064214d109c053732a0685ffa7ed3ad5", kill_on_drop: false }`
[INFO] [stdout] c64f4b0664c11011d18c7516601ee568064214d109c053732a0685ffa7ed3ad5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3041d59295b863c74646eafd3dd6dcfe290e6dc7c64516e65abdf180644910d0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3041d59295b863c74646eafd3dd6dcfe290e6dc7c64516e65abdf180644910d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling extra_waiters v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "3041d59295b863c74646eafd3dd6dcfe290e6dc7c64516e65abdf180644910d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3041d59295b863c74646eafd3dd6dcfe290e6dc7c64516e65abdf180644910d0", kill_on_drop: false }`
[INFO] [stdout] 3041d59295b863c74646eafd3dd6dcfe290e6dc7c64516e65abdf180644910d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f76fcd6a6e42fa3b857ce974cd499991cbf0247584ea1730b1aae1908f802145
[INFO] running `Command { std: "docker" "start" "-a" "f76fcd6a6e42fa3b857ce974cd499991cbf0247584ea1730b1aae1908f802145", kill_on_drop: false }`
[INFO] [stderr]    Compiling extra_waiters v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "f76fcd6a6e42fa3b857ce974cd499991cbf0247584ea1730b1aae1908f802145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f76fcd6a6e42fa3b857ce974cd499991cbf0247584ea1730b1aae1908f802145", kill_on_drop: false }`
[INFO] [stdout] f76fcd6a6e42fa3b857ce974cd499991cbf0247584ea1730b1aae1908f802145
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 96f177b7e5edc16681d17fc45b0cff2d08cbdcc28ecc7008413788c9e4a26bed
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "96f177b7e5edc16681d17fc45b0cff2d08cbdcc28ecc7008413788c9e4a26bed", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/extra_waiters-b9b71e7e240770af)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test spinlock_waiter::tests::lock ... ok
[INFO] [stdout] test attentive_waiter::tests::ensure_const ... ok
[INFO] [stdout] test spinlock_waiter::tests::unlock ... ok
[INFO] [stdout] test once_waiter::tests::create ... ok
[INFO] [stdout] test spinlock_waiter::tests::create ... ok
[INFO] [stdout] test attentive_waiter::tests::wait ... ok
[INFO] [stdout] test attentive_waiter::tests::timeout ... ok
[INFO] [stdout] test attentive_waiter::tests::wait_hooked ... ok
[INFO] [stdout] test once_waiter::tests::ensure_once ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.84s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests extra_waiters
[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<T>`
[INFO] [stdout]   --> src/attentive_waiter.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | let mut items = Vec::new();
[INFO] [stdout]    |     --------- consider giving `items` the explicit type `Vec<T>`, where the type parameter `T` is specified
[INFO] [stdout] ...
[INFO] [stdout] 17 |     for item in &items {
[INFO] [stdout]    |                 ^^^^^^ cannot infer type for type parameter `T`
[INFO] [stdout]    |
[INFO] [stdout]    = note: type must be known at this point
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 0.32s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "96f177b7e5edc16681d17fc45b0cff2d08cbdcc28ecc7008413788c9e4a26bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96f177b7e5edc16681d17fc45b0cff2d08cbdcc28ecc7008413788c9e4a26bed", kill_on_drop: false }`
[INFO] [stdout] 96f177b7e5edc16681d17fc45b0cff2d08cbdcc28ecc7008413788c9e4a26bed