[INFO] crate roundrobin 0.1.1 is already in cache
[INFO] checking roundrobin-0.1.1 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate roundrobin 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate roundrobin 0.1.1 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate roundrobin 0.1.1
[INFO] finished tweaking crates.io crate roundrobin 0.1.1
[INFO] tweaked toml for crates.io crate roundrobin 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate roundrobin 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] e1224e4d1594f99a9b5ec5d5a62fddfe0937c5ac23e72ef9fe82be72cb3f8db2
[INFO] running `"docker" "start" "-a" "e1224e4d1594f99a9b5ec5d5a62fddfe0937c5ac23e72ef9fe82be72cb3f8db2"`
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking roundrobin v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `RoundRobinBalancer`, `Server`
[INFO] [stderr]   --> src/rr.rs:46:17
[INFO] [stderr]    |
[INFO] [stderr] 46 |     use super::{RoundRobinBalancer, Server};
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/wrr.rs:132:9
[INFO] [stderr]     |
[INFO] [stderr] 132 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `"docker" "inspect" "e1224e4d1594f99a9b5ec5d5a62fddfe0937c5ac23e72ef9fe82be72cb3f8db2"`
[INFO] running `"docker" "rm" "-f" "e1224e4d1594f99a9b5ec5d5a62fddfe0937c5ac23e72ef9fe82be72cb3f8db2"`
[INFO] [stdout] e1224e4d1594f99a9b5ec5d5a62fddfe0937c5ac23e72ef9fe82be72cb3f8db2