[INFO] fetching crate eventually-util 0.4.0...
[INFO] checking eventually-util-0.4.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate eventually-util 0.4.0 into /workspace/builds/worker-90/source
[INFO] validating manifest of crates.io crate eventually-util 0.4.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-90/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded eventually-core v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 018a0b0df0f6980c7f34c355fc18630f59f6829cae06106007bbd62bc295612b
[INFO] running `Command { std: "docker" "start" "-a" "018a0b0df0f6980c7f34c355fc18630f59f6829cae06106007bbd62bc295612b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "018a0b0df0f6980c7f34c355fc18630f59f6829cae06106007bbd62bc295612b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "018a0b0df0f6980c7f34c355fc18630f59f6829cae06106007bbd62bc295612b", kill_on_drop: false }`
[INFO] [stdout] 018a0b0df0f6980c7f34c355fc18630f59f6829cae06106007bbd62bc295612b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb3a2e1f825267858a3def3f70028b8f2e346a06c019d4a978573f1bf0a072b7
[INFO] running `Command { std: "docker" "start" "-a" "eb3a2e1f825267858a3def3f70028b8f2e346a06c019d4a978573f1bf0a072b7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]     Checking instant v0.1.11
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking eventually-core v0.4.0
[INFO] [stderr]     Checking eventually-util v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `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 the macro `$crate::join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used
[INFO] [stdout]    --> src/inmemory/store.rs:479:9
[INFO] [stdout]     |
[INFO] [stdout] 479 |         tokio::join!(join_handle_1, join_handle_2);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `$crate::join` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.99s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eb3a2e1f825267858a3def3f70028b8f2e346a06c019d4a978573f1bf0a072b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb3a2e1f825267858a3def3f70028b8f2e346a06c019d4a978573f1bf0a072b7", kill_on_drop: false }`
[INFO] [stdout] eb3a2e1f825267858a3def3f70028b8f2e346a06c019d4a978573f1bf0a072b7
