[INFO] fetching crate roundrobin 0.1.1...
[INFO] checking roundrobin-0.1.1 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate roundrobin 0.1.1 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate roundrobin 0.1.1 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-15/source/Cargo.toml
[INFO] crate crates.io crate roundrobin 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac4d02d694deab9b5e73e65a6d129c8e5f02e1dc7592ef2d1b268b06e2587416
[INFO] running `Command { std: "docker" "start" "-a" "ac4d02d694deab9b5e73e65a6d129c8e5f02e1dc7592ef2d1b268b06e2587416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac4d02d694deab9b5e73e65a6d129c8e5f02e1dc7592ef2d1b268b06e2587416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac4d02d694deab9b5e73e65a6d129c8e5f02e1dc7592ef2d1b268b06e2587416", kill_on_drop: false }`
[INFO] [stdout] ac4d02d694deab9b5e73e65a6d129c8e5f02e1dc7592ef2d1b268b06e2587416
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdaacfa7b17b820a5e2b62b47523a36f20b4dec6f72f4ffb754d8ed30bc38478
[INFO] running `Command { std: "docker" "start" "-a" "fdaacfa7b17b820a5e2b62b47523a36f20b4dec6f72f4ffb754d8ed30bc38478", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking roundrobin v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `RoundRobinBalancer`, `Server`
[INFO] [stdout]   --> src/rr.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use super::{RoundRobinBalancer, Server};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/wrr.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "fdaacfa7b17b820a5e2b62b47523a36f20b4dec6f72f4ffb754d8ed30bc38478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdaacfa7b17b820a5e2b62b47523a36f20b4dec6f72f4ffb754d8ed30bc38478", kill_on_drop: false }`
[INFO] [stdout] fdaacfa7b17b820a5e2b62b47523a36f20b4dec6f72f4ffb754d8ed30bc38478