[INFO] crate reactor_rs 0.0.5 is already in cache
[INFO] checking reactor_rs-0.0.5 against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] extracting crate reactor_rs 0.0.5 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate reactor_rs 0.0.5 on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate reactor_rs 0.0.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate reactor_rs 0.0.5
[INFO] tweaked toml for crates.io crate reactor_rs 0.0.5 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate reactor_rs 0.0.5 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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] 2f5c2de6fe34bb1465f3c721bcbacbd08a5983ebf93dda03228ca13e9fc8c13b
[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" "2f5c2de6fe34bb1465f3c721bcbacbd08a5983ebf93dda03228ca13e9fc8c13b"`
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking env_logger v0.7.0
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.16
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking tokio-reactor v0.1.10
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking reactor_rs v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `futures::prelude::*`
[INFO] [stderr]   --> src/mono/spi.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use futures::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::prelude::*`
[INFO] [stderr]   --> src/mono/spi.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use futures::prelude::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.64s
[INFO] running `"docker" "inspect" "2f5c2de6fe34bb1465f3c721bcbacbd08a5983ebf93dda03228ca13e9fc8c13b"`
[INFO] running `"docker" "rm" "-f" "2f5c2de6fe34bb1465f3c721bcbacbd08a5983ebf93dda03228ca13e9fc8c13b"`
[INFO] [stdout] 2f5c2de6fe34bb1465f3c721bcbacbd08a5983ebf93dda03228ca13e9fc8c13b