[INFO] updating cached repository HuangChaoWH/rust_multithread_with_pool
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/HuangChaoWH/rust_multithread_with_pool
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/HuangChaoWH/rust_multithread_with_pool" "work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/HuangChaoWH/rust_multithread_with_pool"`
[INFO] [stderr] Cloning into 'work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/HuangChaoWH/rust_multithread_with_pool'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/HuangChaoWH/rust_multithread_with_pool" "work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/HuangChaoWH/rust_multithread_with_pool"`
[INFO] [stderr] Cloning into 'work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/HuangChaoWH/rust_multithread_with_pool'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a32014efcb546f8184e4d45deea4d618ac18bcf1
[INFO] sha for GitHub repo HuangChaoWH/rust_multithread_with_pool: a32014efcb546f8184e4d45deea4d618ac18bcf1
[INFO] validating manifest of HuangChaoWH/rust_multithread_with_pool on toolchain master#2bde39b8edce6463e1c37f8a8082a875e7b536b1
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of HuangChaoWH/rust_multithread_with_pool on toolchain try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing HuangChaoWH/rust_multithread_with_pool
[INFO] finished frobbing HuangChaoWH/rust_multithread_with_pool
[INFO] frobbed toml for HuangChaoWH/rust_multithread_with_pool written to work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/HuangChaoWH/rust_multithread_with_pool/Cargo.toml
[INFO] started frobbing HuangChaoWH/rust_multithread_with_pool
[INFO] finished frobbing HuangChaoWH/rust_multithread_with_pool
[INFO] frobbed toml for HuangChaoWH/rust_multithread_with_pool written to work/ex/pr-57483/sources/try#0d8b5d1f16bab9e975695518ff8705bdab9fe94c/gh/HuangChaoWH/rust_multithread_with_pool/Cargo.toml
[INFO] crate HuangChaoWH/rust_multithread_with_pool has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0d8b5d1f16bab9e975695518ff8705bdab9fe94c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking HuangChaoWH/rust_multithread_with_pool against master#2bde39b8edce6463e1c37f8a8082a875e7b536b1 for pr-57483
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57483/worker-3/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57483/sources/master#2bde39b8edce6463e1c37f8a8082a875e7b536b1/gh/HuangChaoWH/rust_multithread_with_pool:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+2bde39b8edce6463e1c37f8a8082a875e7b536b1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] bba2bd3f7acd17da73472af40f08a66147a3d89fa96e7c2e51a334b47b0df99a
[INFO] running `"docker" "start" "-a" "bba2bd3f7acd17da73472af40f08a66147a3d89fa96e7c2e51a334b47b0df99a"`
[INFO] [stderr]     Checking rust_multithread_with_pool v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> src/bin/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Mutex`
[INFO] [stderr]   --> src/bin/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::sync::Mutex;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> src/bin/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::Mutex`
[INFO] [stderr]   --> src/bin/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::sync::Mutex;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `"docker" "inspect" "bba2bd3f7acd17da73472af40f08a66147a3d89fa96e7c2e51a334b47b0df99a"`
[INFO] running `"docker" "rm" "-f" "bba2bd3f7acd17da73472af40f08a66147a3d89fa96e7c2e51a334b47b0df99a"`
[INFO] [stdout] bba2bd3f7acd17da73472af40f08a66147a3d89fa96e7c2e51a334b47b0df99a