[INFO] fetching crate workerpool 1.2.1...
[INFO] testing workerpool-1.2.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate workerpool 1.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate workerpool 1.2.1
[INFO] finished tweaking crates.io crate workerpool 1.2.1
[INFO] tweaked toml for crates.io crate workerpool 1.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate workerpool 1.2.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca22ba87353fedc6e99bf7477cf250fd0ebbf6404cad4263e900017ad41709c4
[INFO] running `Command { std: "docker" "start" "-a" "ca22ba87353fedc6e99bf7477cf250fd0ebbf6404cad4263e900017ad41709c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca22ba87353fedc6e99bf7477cf250fd0ebbf6404cad4263e900017ad41709c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca22ba87353fedc6e99bf7477cf250fd0ebbf6404cad4263e900017ad41709c4", kill_on_drop: false }`
[INFO] [stdout] ca22ba87353fedc6e99bf7477cf250fd0ebbf6404cad4263e900017ad41709c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81352aea558ad65eccb5d5f910cbf048c3a24c2050480344f07d0635370492e5
[INFO] running `Command { std: "docker" "start" "-a" "81352aea558ad65eccb5d5f910cbf048c3a24c2050480344f07d0635370492e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling workerpool v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "81352aea558ad65eccb5d5f910cbf048c3a24c2050480344f07d0635370492e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81352aea558ad65eccb5d5f910cbf048c3a24c2050480344f07d0635370492e5", kill_on_drop: false }`
[INFO] [stdout] 81352aea558ad65eccb5d5f910cbf048c3a24c2050480344f07d0635370492e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c2452e24486d0d595c8ea531da99890467820285e43d949637acfb0a477b970
[INFO] running `Command { std: "docker" "start" "-a" "4c2452e24486d0d595c8ea531da99890467820285e43d949637acfb0a477b970", kill_on_drop: false }`
[INFO] [stderr]    Compiling workerpool v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "4c2452e24486d0d595c8ea531da99890467820285e43d949637acfb0a477b970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c2452e24486d0d595c8ea531da99890467820285e43d949637acfb0a477b970", kill_on_drop: false }`
[INFO] [stdout] 4c2452e24486d0d595c8ea531da99890467820285e43d949637acfb0a477b970
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fb114ad2352b03cf9af6602e135f5f299d4f47a15f4d0b589aa9a38cd79ccac5
[INFO] running `Command { std: "docker" "start" "-a" "fb114ad2352b03cf9af6602e135f5f299d4f47a15f4d0b589aa9a38cd79ccac5", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/workerpool-fc1cfe7b9161118f)
[INFO] [stdout] running 21 tests
[INFO] [stdout] test test::test_cloned_eq ... ok
[INFO] [stdout] test test::test_empty_pool ... ok
[INFO] [stdout] test test::test_multi_join ... ok
[INFO] [stdout] test test::test_send ... ok
[INFO] [stdout] test test::test_send_shared_data ... ok
[INFO] [stdout] test test::test_sync_shared_data ... ok
[INFO] [stdout] test test::test_works ... ok
[INFO] [stdout] test test::test_shrink ... ok
[INFO] [stdout] test test::test_zero_tasks_panic - should panic ... ok
[INFO] [stdout] test test::test_name ... ok
[INFO] [stdout] test test::test_should_not_panic_on_drop_if_subtasks_panic_after_drop ... ok
[INFO] [stdout] test test::test_recovery_from_subtask_panic ... ok
[INFO] [stdout] test test::test_active_count ... ok
[INFO] [stdout] test test::test_debug ... ok
[INFO] [stdout] test test::test_massive_task_creation ... ok
[INFO] [stdout] test test::test_join_wavesurfer ... ok
[INFO] [stdout] test test::test_clone ... ok
[INFO] [stdout] test test::test_no_fun_or_joy ... ok
[INFO] [stdout] test test::test_set_num_threads_decreasing ... ok
[INFO] [stdout] test test::test_set_num_threads_increasing ... ok
[INFO] [stdout] test test::test_repeated_join ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 24.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests workerpool
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test src/lib.rs - Builder::new (line 288) ... ok
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] test src/lib.rs - Builder::build (line 406) ... ok
[INFO] [stdout] test src/lib.rs - Builder::thread_stack_size (line 378) ... ok
[INFO] [stdout] test src/lib.rs - Pool<T>::clone (line 842) ... ok
[INFO] [stdout] test src/lib.rs - Pool<T>::max_count (line 677) ... ok
[INFO] [stdout] test src/lib.rs - Builder::thread_name (line 344) ... ok
[INFO] [stdout] test src/lib.rs - Pool<T>::execute (line 561) ... ok
[INFO] [stdout] test src/lib.rs - Pool<T>::new (line 506) ... ok
[INFO] [stdout] test src/lib.rs - Pool<T>::join (line 790) ... ok
[INFO] [stdout] test src/lib.rs - Builder::num_threads (line 312) ... ok
[INFO] [stdout] test src/lib.rs - Pool<T>::eq (line 907) ... ok
[INFO] [stdout] test src/lib.rs - (line 66) ... ok
[INFO] [stdout] test src/lib.rs - thunk::Thunk (line 981) ... ok
[INFO] [stdout] test src/lib.rs - Builder (line 267) ... ok
[INFO] [stdout] test src/lib.rs - Pool<T>::execute_to (line 591) ... ok
[INFO] [stdout] test src/lib.rs - Pool<T>::with_name (line 527) ... ok
[INFO] [stdout] test src/lib.rs - thunk (line 937) ... ok
[INFO] [stdout] test src/lib.rs - thunk::Thunk (line 988) ... ok
[INFO] [stdout] test src/lib.rs - Pool<T>::panic_count (line 697) ... ok
[INFO] [stdout] test src/lib.rs - (line 38) ... ok
[INFO] [stdout] test src/lib.rs - Pool<T>::active_count (line 651) ... ok
[INFO] [stdout] test src/lib.rs - Pool<T>::queued_count (line 625) ... ok
[INFO] [stdout] test src/lib.rs - Pool<T>::set_num_threads (line 730) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fb114ad2352b03cf9af6602e135f5f299d4f47a15f4d0b589aa9a38cd79ccac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb114ad2352b03cf9af6602e135f5f299d4f47a15f4d0b589aa9a38cd79ccac5", kill_on_drop: false }`
[INFO] [stdout] fb114ad2352b03cf9af6602e135f5f299d4f47a15f4d0b589aa9a38cd79ccac5