[INFO] crate advent 0.2.2 is already in cache
[INFO] testing advent-0.2.2 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate advent 0.2.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate advent 0.2.2 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate advent 0.2.2
[INFO] finished tweaking crates.io crate advent 0.2.2
[INFO] tweaked toml for crates.io crate advent 0.2.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e895649b0af755dc90bd2d046dcfa388b4e8353b6c7c2bd6bba433092ca2d820
[INFO] running `Command { std: "docker" "start" "-a" "e895649b0af755dc90bd2d046dcfa388b4e8353b6c7c2bd6bba433092ca2d820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e895649b0af755dc90bd2d046dcfa388b4e8353b6c7c2bd6bba433092ca2d820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e895649b0af755dc90bd2d046dcfa388b4e8353b6c7c2bd6bba433092ca2d820", kill_on_drop: false }`
[INFO] [stdout] e895649b0af755dc90bd2d046dcfa388b4e8353b6c7c2bd6bba433092ca2d820
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1c604790de8e1d2824b91e8168240d19ec3958941b0e5c8dc15a8ba455e9b6f
[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" "d1c604790de8e1d2824b91e8168240d19ec3958941b0e5c8dc15a8ba455e9b6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling advent v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/y2018/day2.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     (twice * thrice)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` 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 2.35s
[INFO] running `Command { std: "docker" "inspect" "d1c604790de8e1d2824b91e8168240d19ec3958941b0e5c8dc15a8ba455e9b6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1c604790de8e1d2824b91e8168240d19ec3958941b0e5c8dc15a8ba455e9b6f", kill_on_drop: false }`
[INFO] [stdout] d1c604790de8e1d2824b91e8168240d19ec3958941b0e5c8dc15a8ba455e9b6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdc9ae62ebef6dad48dc220dd428b183905ad6dc5bc71eb6f67d7badff45aff4
[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" "bdc9ae62ebef6dad48dc220dd428b183905ad6dc5bc71eb6f67d7badff45aff4", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/y2018/day2.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     (twice * thrice)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling advent v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/y2018/day2.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     (twice * thrice)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "bdc9ae62ebef6dad48dc220dd428b183905ad6dc5bc71eb6f67d7badff45aff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdc9ae62ebef6dad48dc220dd428b183905ad6dc5bc71eb6f67d7badff45aff4", kill_on_drop: false }`
[INFO] [stdout] bdc9ae62ebef6dad48dc220dd428b183905ad6dc5bc71eb6f67d7badff45aff4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e64dbed63c188ea916d86286a30b97c9d4604fc9817e1efc89894fbeae1c2c15
[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" "e64dbed63c188ea916d86286a30b97c9d4604fc9817e1efc89894fbeae1c2c15", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/y2018/day2.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     (twice * thrice)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/y2018/day2.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     (twice * thrice)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/advent-9bfe93c7cb4471c6
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test y2017::day1::examples ... ok
[INFO] [stdout] test y2017::day2::examples ... ok
[INFO] [stdout] test y2017::day3::examples ... ok
[INFO] [stdout] test y2018::day5::examples ... ok
[INFO] [stdout] test y2018::day2::examples ... ok
[INFO] [stdout] test y2017::day1::solution ... ok
[INFO] [stdout] test y2017::day4::examples ... ok
[INFO] [stdout] test y2017::day2::solution ... ok
[INFO] [stdout] test y2018::day1::examples ... ok
[INFO] [stdout] test y2018::day4::examples ... ok
[INFO] [stdout] test y2018::day3::examples ... ok
[INFO] [stdout] test y2018::day4::solution ... ok
[INFO] [stdout] test y2017::day4::solution ... ok
[INFO] [stdout] test y2017::day3::solution ... ok
[INFO] [stdout] test y2018::day3::solution ... ok
[INFO] [stdout] test y2018::day2::solution ... ok
[INFO] [stdout] test y2018::day1::solution ... ok
[INFO] [stderr]    Doc-tests advent
[INFO] [stdout] test y2018::day5::solution ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/y2018/day2.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     (twice * thrice)
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e64dbed63c188ea916d86286a30b97c9d4604fc9817e1efc89894fbeae1c2c15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e64dbed63c188ea916d86286a30b97c9d4604fc9817e1efc89894fbeae1c2c15", kill_on_drop: false }`
[INFO] [stdout] e64dbed63c188ea916d86286a30b97c9d4604fc9817e1efc89894fbeae1c2c15