[INFO] crate genawaiter 0.99.1 is already in cache
[INFO] checking genawaiter-0.99.1 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate genawaiter 0.99.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate genawaiter 0.99.1 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate genawaiter 0.99.1
[INFO] finished tweaking crates.io crate genawaiter 0.99.1
[INFO] tweaked toml for crates.io crate genawaiter 0.99.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5387d6b125ff4c6c6d79969ee39c83f330121f512ffb1c90c9c5ec0195214840
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "5387d6b125ff4c6c6d79969ee39c83f330121f512ffb1c90c9c5ec0195214840"`
[INFO] [stderr]     Checking genawaiter-macro v0.99.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling genawaiter-proc-macro v0.99.1
[INFO] [stderr]     Checking genawaiter v0.99.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/rc/generator.rs:31:22
[INFO] [stderr]     |
[INFO] [stderr] 31  |         let future = { Box::pin(producer(Co::new(airlock.clone()))) };
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:261:73
[INFO] [stderr]     |
[INFO] [stderr] 261 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stderr]     |                                                                         ^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_braces)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/sync/generator.rs:31:22
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let future = { Box::pin(producer(Co::new(airlock.clone()))) };
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]    --> src/rc/generator.rs:31:22
[INFO] [stderr]     |
[INFO] [stderr] 31  |         let future = { Box::pin(producer(Co::new(airlock.clone()))) };
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/lib.rs:261:73
[INFO] [stderr]     |
[INFO] [stderr] 261 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stderr]     |                                                                         ^^^^^^
[INFO] [stderr]     = note: `#[warn(unused_braces)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around assigned value
[INFO] [stderr]   --> src/sync/generator.rs:31:22
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let future = { Box::pin(producer(Co::new(airlock.clone()))) };
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.64s
[INFO] running `"docker" "inspect" "5387d6b125ff4c6c6d79969ee39c83f330121f512ffb1c90c9c5ec0195214840"`
[INFO] running `"docker" "rm" "-f" "5387d6b125ff4c6c6d79969ee39c83f330121f512ffb1c90c9c5ec0195214840"`
[INFO] [stdout] 5387d6b125ff4c6c6d79969ee39c83f330121f512ffb1c90c9c5ec0195214840