[INFO] updating cached repository avl/scoped_pool_perf_problem
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/avl/scoped_pool_perf_problem
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/avl/scoped_pool_perf_problem" "work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/avl/scoped_pool_perf_problem"`
[INFO] [stderr] Cloning into 'work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/avl/scoped_pool_perf_problem'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/avl/scoped_pool_perf_problem" "work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/avl/scoped_pool_perf_problem"`
[INFO] [stderr] Cloning into 'work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/avl/scoped_pool_perf_problem'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9496ecf607d63f4a6d43f09d90b078f5073281e5
[INFO] sha for GitHub repo avl/scoped_pool_perf_problem: 9496ecf607d63f4a6d43f09d90b078f5073281e5
[INFO] validating manifest of avl/scoped_pool_perf_problem 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 avl/scoped_pool_perf_problem 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 avl/scoped_pool_perf_problem
[INFO] finished frobbing avl/scoped_pool_perf_problem
[INFO] frobbed toml for avl/scoped_pool_perf_problem written to work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/avl/scoped_pool_perf_problem/Cargo.toml
[INFO] started frobbing avl/scoped_pool_perf_problem
[INFO] finished frobbing avl/scoped_pool_perf_problem
[INFO] frobbed toml for avl/scoped_pool_perf_problem written to work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/avl/scoped_pool_perf_problem/Cargo.toml
[INFO] crate avl/scoped_pool_perf_problem 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 avl/scoped_pool_perf_problem against master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4 for pr-60932
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60932/worker-2/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/avl/scoped_pool_perf_problem:/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] 06336fbd46744c50fcbe35dc7083148fc8effc2707859ec128bd9b3304326a2e
[INFO] running `"docker" "start" "-a" "06336fbd46744c50fcbe35dc7083148fc8effc2707859ec128bd9b3304326a2e"`
[INFO] [stderr]     Checking variance v0.1.3
[INFO] [stderr]     Checking scopeguard v0.1.2
[INFO] [stderr]     Checking scoped-pool v1.0.0
[INFO] [stderr]     Checking scoped_pool_performance_problem v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `scoped_pool::Pool`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use scoped_pool::Pool;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `scoped_pool::Pool`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use scoped_pool::Pool;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] warning: unused import: `Bencher`
[INFO] [stderr]  --> src/main.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | use test::{Bencher};
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |                 let mut output_data_ref=&mut output_data;
[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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:52:8
[INFO] [stderr]    |
[INFO] [stderr] 52 |             let mut output_data_ref=&mut output_data;
[INFO] [stderr]    |                 ----^^^^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 |             let mut t = Vec::<i32>::with_capacity(data_size/parallellism);
[INFO] [stderr]    |                 ----^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `"docker" "inspect" "06336fbd46744c50fcbe35dc7083148fc8effc2707859ec128bd9b3304326a2e"`
[INFO] running `"docker" "rm" "-f" "06336fbd46744c50fcbe35dc7083148fc8effc2707859ec128bd9b3304326a2e"`
[INFO] [stdout] 06336fbd46744c50fcbe35dc7083148fc8effc2707859ec128bd9b3304326a2e