[INFO] cloning repository https://github.com/ruchirK/chess-diff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ruchirK/chess-diff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FruchirK%2Fchess-diff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FruchirK%2Fchess-diff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 292f3d3aa7939da6b772ba64d807e399899b6111
[INFO] checking ruchirK/chess-diff against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FruchirK%2Fchess-diff" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ruchirK/chess-diff on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ruchirK/chess-diff
[INFO] finished tweaking git repo https://github.com/ruchirK/chess-diff
[INFO] tweaked toml for git repo https://github.com/ruchirK/chess-diff written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/ruchirK/chess-diff already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8230268fe3ce71ade804129850176a68f9e072980f54488a55e1475f2ea54b9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f8230268fe3ce71ade804129850176a68f9e072980f54488a55e1475f2ea54b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8230268fe3ce71ade804129850176a68f9e072980f54488a55e1475f2ea54b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8230268fe3ce71ade804129850176a68f9e072980f54488a55e1475f2ea54b9", kill_on_drop: false }`
[INFO] [stdout] f8230268fe3ce71ade804129850176a68f9e072980f54488a55e1475f2ea54b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dbb12800894a703771a20986c6d5b55b65eb2e64749fd7941ae4c8df9c734308
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "dbb12800894a703771a20986c6d5b55b65eb2e64749fd7941ae4c8df9c734308", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking timely_bytes v0.11.0 (https://github.com/TimelyDataflow/timely-dataflow#6d1cca4c)
[INFO] [stderr]     Checking abomonation v0.7.3
[INFO] [stderr]     Checking timely_logging v0.11.1 (https://github.com/TimelyDataflow/timely-dataflow#6d1cca4c)
[INFO] [stderr]    Compiling shakmaty v0.16.4
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking timely_sort v0.1.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking bzip2 v0.4.1
[INFO] [stderr]     Checking btoi v0.4.2
[INFO] [stderr]     Checking pgn-reader v0.15.0 (https://github.com/niklasf/rust-pgn-reader#49dc0b16)
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]     Checking timely_communication v0.11.1 (https://github.com/TimelyDataflow/timely-dataflow#6d1cca4c)
[INFO] [stderr]     Checking timely v0.11.1 (https://github.com/TimelyDataflow/timely-dataflow#6d1cca4c)
[INFO] [stderr]     Checking differential-dataflow v0.11.0 (https://github.com/TimelyDataflow/differential-dataflow#f155b908)
[INFO] [stderr]     Checking chess-diff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `CountTotal`
[INFO] [stdout]  --> examples/space-saving.rs:8:40
[INFO] [stdout]   |
[INFO] [stdout] 8 | use differential_dataflow::operators::{CountTotal, Join, Threshold};
[INFO] [stdout]   |                                        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.66s
[INFO] running `Command { std: "docker" "inspect" "dbb12800894a703771a20986c6d5b55b65eb2e64749fd7941ae4c8df9c734308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbb12800894a703771a20986c6d5b55b65eb2e64749fd7941ae4c8df9c734308", kill_on_drop: false }`
[INFO] [stdout] dbb12800894a703771a20986c6d5b55b65eb2e64749fd7941ae4c8df9c734308