[INFO] updating cached repository https://github.com/whatisaphone/genawaiter
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 834351b1070d75e06596399f6bb95eb0e77b9e53
[INFO] checking whatisaphone/genawaiter against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhatisaphone%2Fgenawaiter" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/whatisaphone/genawaiter on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/whatisaphone/genawaiter
[INFO] finished tweaking git repo https://github.com/whatisaphone/genawaiter
[INFO] tweaked toml for git repo https://github.com/whatisaphone/genawaiter written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/whatisaphone/genawaiter already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 085b21b7a35f3b0d862d3e683952bd415e39e070d882b2d0fefb73bb0afcbe87
[INFO] running `"docker" "start" "-a" "085b21b7a35f3b0d862d3e683952bd415e39e070d882b2d0fefb73bb0afcbe87"`
[INFO] [stderr]     Checking genawaiter v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.1
[INFO] [stderr]     Checking futures v0.3.1
[INFO] [stderr] warning: unused import: `futures::executor::block_on_stream`
[INFO] [stderr]  --> tests/stack.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures::executor::block_on_stream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]  --> tests/stack.rs:2:73
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stderr]   |                                                                         ^^^^^^
[INFO] [stderr]   = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::executor::block_on_stream`
[INFO] [stderr]  --> tests/sync.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures::executor::block_on_stream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]  --> tests/sync.rs:2:73
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stderr]   |                                                                         ^^^^^^
[INFO] [stderr]   = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::executor::block_on_stream`
[INFO] [stderr]  --> tests/rc.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use futures::executor::block_on_stream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]  --> tests/rc.rs:2:73
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
[INFO] [stderr]   |                                                                         ^^^^^^
[INFO] [stderr]   = note: `#[warn(unused_imports)]` implied by `#[warn(unused)]`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.80s
[INFO] running `"docker" "inspect" "085b21b7a35f3b0d862d3e683952bd415e39e070d882b2d0fefb73bb0afcbe87"`
[INFO] running `"docker" "rm" "-f" "085b21b7a35f3b0d862d3e683952bd415e39e070d882b2d0fefb73bb0afcbe87"`
[INFO] [stdout] 085b21b7a35f3b0d862d3e683952bd415e39e070d882b2d0fefb73bb0afcbe87