[INFO] updating cached repository kojole-sandbox/piyokvs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kojole-sandbox/piyokvs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kojole-sandbox/piyokvs" "work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/kojole-sandbox/piyokvs"`
[INFO] [stderr] Cloning into 'work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/kojole-sandbox/piyokvs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kojole-sandbox/piyokvs" "work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/kojole-sandbox/piyokvs"`
[INFO] [stderr] Cloning into 'work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/kojole-sandbox/piyokvs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 13c83777166a8950e8c92677f6cf7da14a621922
[INFO] sha for GitHub repo kojole-sandbox/piyokvs: 13c83777166a8950e8c92677f6cf7da14a621922
[INFO] validating manifest of kojole-sandbox/piyokvs on toolchain master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kojole-sandbox/piyokvs on toolchain try#097e26225c5cc28d3042ad4c80eac7c488f78ee7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kojole-sandbox/piyokvs
[INFO] finished frobbing kojole-sandbox/piyokvs
[INFO] frobbed toml for kojole-sandbox/piyokvs written to work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/kojole-sandbox/piyokvs/Cargo.toml
[INFO] started frobbing kojole-sandbox/piyokvs
[INFO] finished frobbing kojole-sandbox/piyokvs
[INFO] frobbed toml for kojole-sandbox/piyokvs written to work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/kojole-sandbox/piyokvs/Cargo.toml
[INFO] crate kojole-sandbox/piyokvs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kojole-sandbox/piyokvs against master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4 for pr-60932
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60932/worker-4/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/kojole-sandbox/piyokvs:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 49c7620516e16e40ba615b0763f76eb74eb07b54c2abce59e0505fc8aeaf4e0e
[INFO] running `"docker" "start" "-a" "49c7620516e16e40ba615b0763f76eb74eb07b54c2abce59e0505fc8aeaf4e0e"`
[INFO] [stderr]     Checking piyokvs v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/integration_test.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |         let mut entry = buffer.lock(key).unwrap();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "49c7620516e16e40ba615b0763f76eb74eb07b54c2abce59e0505fc8aeaf4e0e"`
[INFO] running `"docker" "rm" "-f" "49c7620516e16e40ba615b0763f76eb74eb07b54c2abce59e0505fc8aeaf4e0e"`
[INFO] [stdout] 49c7620516e16e40ba615b0763f76eb74eb07b54c2abce59e0505fc8aeaf4e0e