[INFO] fetching crate eventually-util 0.4.0...
[INFO] testing eventually-util-0.4.0 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate eventually-util 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate eventually-util 0.4.0 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate eventually-util 0.4.0
[INFO] finished tweaking crates.io crate eventually-util 0.4.0
[INFO] tweaked toml for crates.io crate eventually-util 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 152a61fd4bf5bfd69a714ac4d413ff4337408759f7e6e388a7e651fd4bd2399f
[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" "152a61fd4bf5bfd69a714ac4d413ff4337408759f7e6e388a7e651fd4bd2399f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "152a61fd4bf5bfd69a714ac4d413ff4337408759f7e6e388a7e651fd4bd2399f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "152a61fd4bf5bfd69a714ac4d413ff4337408759f7e6e388a7e651fd4bd2399f", kill_on_drop: false }`
[INFO] [stdout] 152a61fd4bf5bfd69a714ac4d413ff4337408759f7e6e388a7e651fd4bd2399f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4395c43b6bfc28ab5e70bc5ce0684a92e0a60f3385582729d1a9460b56590513
[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" "4395c43b6bfc28ab5e70bc5ce0684a92e0a60f3385582729d1a9460b56590513", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling tokio v0.2.23
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling eventually-core v0.4.0
[INFO] [stderr]    Compiling eventually-util v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.98s
[INFO] running `Command { std: "docker" "inspect" "4395c43b6bfc28ab5e70bc5ce0684a92e0a60f3385582729d1a9460b56590513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4395c43b6bfc28ab5e70bc5ce0684a92e0a60f3385582729d1a9460b56590513", kill_on_drop: false }`
[INFO] [stdout] 4395c43b6bfc28ab5e70bc5ce0684a92e0a60f3385582729d1a9460b56590513
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 441536cf17fee9d5ced73f41b2ad8e70aad74277dccb2971e7708daa89cf0e01
[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" "441536cf17fee9d5ced73f41b2ad8e70aad74277dccb2971e7708daa89cf0e01", kill_on_drop: false }`
[INFO] [stderr]    Compiling eventually-util v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` in tuple element 0 that must be used
[INFO] [stdout]    --> src/inmemory/store.rs:479:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |         tokio::join!(join_handle_1, join_handle_2);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` in tuple element 1 that must be used
[INFO] [stdout]    --> src/inmemory/store.rs:479:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |         tokio::join!(join_handle_1, join_handle_2);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.62s
[INFO] running `Command { std: "docker" "inspect" "441536cf17fee9d5ced73f41b2ad8e70aad74277dccb2971e7708daa89cf0e01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441536cf17fee9d5ced73f41b2ad8e70aad74277dccb2971e7708daa89cf0e01", kill_on_drop: false }`
[INFO] [stdout] 441536cf17fee9d5ced73f41b2ad8e70aad74277dccb2971e7708daa89cf0e01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6aa590aacab37d86e5766be6a1053d3b69cb8efa53bbb2c4b9efefd405d9c4c2
[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" "6aa590aacab37d86e5766be6a1053d3b69cb8efa53bbb2c4b9efefd405d9c4c2", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused `std::result::Result` in tuple element 0 that must be used
[INFO] [stdout] running 7 tests
[INFO] [stderr]    --> src/inmemory/store.rs:479:9
[INFO] [stdout] test inmemory::store::tests::append_with_any_versions_works ... ok
[INFO] [stderr]     |
[INFO] [stdout] test inmemory::store::tests::append_with_wrong_expected_versions_fails ... ok
[INFO] [stderr] 479 |         tokio::join!(join_handle_1, join_handle_2);
[INFO] [stdout] test inmemory::store::tests::remove ... ok
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] test inmemory::store::tests::append_with_expected_versions_works ... ok
[INFO] [stderr]     |
[INFO] [stdout] test inmemory::store::tests::stream_all ... ok
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] test inmemory::store::tests::stream ... ok
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] test inmemory::store::tests::subscribe_returns_all_the_latest_events ... ok
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] warning: unused `std::result::Result` in tuple element 1 that must be used
[INFO] [stdout] 
[INFO] [stderr]    --> src/inmemory/store.rs:479:9
[INFO] [stderr]     |
[INFO] [stderr] 479 |         tokio::join!(join_handle_1, join_handle_2);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/eventually_util-a3453859eaf2b868
[INFO] [stderr]    Doc-tests eventually-util
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6aa590aacab37d86e5766be6a1053d3b69cb8efa53bbb2c4b9efefd405d9c4c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aa590aacab37d86e5766be6a1053d3b69cb8efa53bbb2c4b9efefd405d9c4c2", kill_on_drop: false }`
[INFO] [stdout] 6aa590aacab37d86e5766be6a1053d3b69cb8efa53bbb2c4b9efefd405d9c4c2