[INFO] fetching crate reqchan 0.5.8...
[INFO] testing reqchan-0.5.8 against 1.49.0 for beta-1.50-1
[INFO] extracting crate reqchan 0.5.8 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate reqchan 0.5.8 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reqchan 0.5.8
[INFO] finished tweaking crates.io crate reqchan 0.5.8
[INFO] tweaked toml for crates.io crate reqchan 0.5.8 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 2b09135b1c5a590f236b8d374943f1cc686c1dc1e615470cad8adfd0ec07001e
[INFO] running `Command { std: "docker" "start" "-a" "2b09135b1c5a590f236b8d374943f1cc686c1dc1e615470cad8adfd0ec07001e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b09135b1c5a590f236b8d374943f1cc686c1dc1e615470cad8adfd0ec07001e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b09135b1c5a590f236b8d374943f1cc686c1dc1e615470cad8adfd0ec07001e", kill_on_drop: false }`
[INFO] [stdout] 2b09135b1c5a590f236b8d374943f1cc686c1dc1e615470cad8adfd0ec07001e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9415bbe9b42609f8ae38f5d2f57603a57000c61e48416188b63a38ef8439fcb5
[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" "9415bbe9b42609f8ae38f5d2f57603a57000c61e48416188b63a38ef8439fcb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling reqchan v0.5.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "9415bbe9b42609f8ae38f5d2f57603a57000c61e48416188b63a38ef8439fcb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9415bbe9b42609f8ae38f5d2f57603a57000c61e48416188b63a38ef8439fcb5", kill_on_drop: false }`
[INFO] [stdout] 9415bbe9b42609f8ae38f5d2f57603a57000c61e48416188b63a38ef8439fcb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc23ddcd248d147d68cfdbd44b94f3cdfef2846a3883ad881fd41f724cf8960f
[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" "bc23ddcd248d147d68cfdbd44b94f3cdfef2846a3883ad881fd41f724cf8960f", kill_on_drop: false }`
[INFO] [stderr]    Compiling reqchan v0.5.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/single_threaded.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 | type Task = Box<FnBox + Send + 'static>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/multi_threaded_one_requester_two_responders.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | type Task = Box<FnBox + Send + 'static>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:715:21
[INFO] [stdout]     |
[INFO] [stdout] 715 |     type Task = Box<FnBox + Send + 'static>;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/multi_threaded_one_requester_one_responder.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | type Task = Box<FnBox + Send + 'static>;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.84s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bc23ddcd248d147d68cfdbd44b94f3cdfef2846a3883ad881fd41f724cf8960f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc23ddcd248d147d68cfdbd44b94f3cdfef2846a3883ad881fd41f724cf8960f", kill_on_drop: false }`
[INFO] [stdout] bc23ddcd248d147d68cfdbd44b94f3cdfef2846a3883ad881fd41f724cf8960f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] 2b37760cfac142df9f82a111dd9e5a160792aa19d85db11fe40afcc461ddd318
[INFO] running `Command { std: "docker" "start" "-a" "2b37760cfac142df9f82a111dd9e5a160792aa19d85db11fe40afcc461ddd318", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 27 tests
[INFO] [stderr]    --> src/lib.rs:715:21
[INFO] [stderr]     |
[INFO] [stderr] 715 |     type Task = Box<FnBox + Send + 'static>;
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/multi_threaded_one_requester_one_responder.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 | type Task = Box<FnBox + Send + 'static>;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/multi_threaded_one_requester_two_responders.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 | type Task = Box<FnBox + Send + 'static>;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> tests/single_threaded.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 | type Task = Box<FnBox + Send + 'static>;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/reqchan-05b1829d7a88cdac
[INFO] [stdout] test tests::test_channel ... ok
[INFO] [stdout] test tests::test_inner_set_datum ... ok
[INFO] [stdout] test tests::test_inner_try_get_datum_no_data ... ok
[INFO] [stdout] test tests::test_inner_flag_request ... ok
[INFO] [stdout] test tests::test_inner_try_get_datum_with_data ... ok
[INFO] [stdout] test tests::test_inner_try_lock_response ... ok
[INFO] [stdout] test tests::test_inner_try_unflag_request_multiple ... ok
[INFO] [stdout] test tests::test_inner_try_lock_request_multiple ... ok
[INFO] [stdout] test tests::test_inner_try_lock_response_multiple ... ok
[INFO] [stdout] test tests::test_inner_try_unflag_request ... ok
[INFO] [stdout] test tests::test_inner_try_lock_request ... ok
[INFO] [stdout] test tests::test_inner_try_unlock_request ... ok
[INFO] [stdout] test tests::test_inner_try_unlock_response ... ok
[INFO] [stdout] test tests::test_request_contract_try_cancel ... ok
[INFO] [stdout] test tests::test_request_contract_try_cancel_done ... ok
[INFO] [stdout] test tests::test_request_contract_try_cancel_too_late ... ok
[INFO] [stdout] test tests::test_responder_try_respond_multiple ... ok
[INFO] [stdout] test tests::test_responder_try_respond ... ok
[INFO] [stdout] test tests::test_requester_try_request ... ok
[INFO] [stdout] test tests::test_request_contract_try_receive_done ... ok
[INFO] [stdout] test tests::test_request_contract_try_receive_no_data ... ok
[INFO] [stdout] test tests::test_requester_try_request_multiple ... ok
[INFO] [stdout] test tests::test_request_contract_try_receive ... ok
[INFO] [stdout] test tests::test_responder_try_respond_no_request ... ok
[INFO] [stdout] test tests::test_response_contract_send ... ok
[INFO] [stdout] test tests::test_response_contract_drop_without_sending_data ... ok
[INFO] [stdout] test tests::test_request_contract_drop_without_receiving_data ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/multi_threaded_one_requester_one_responder-0a20b311e2275a1e
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_request_threaded_receive_threaded ... ok
[INFO] [stdout] test test_request_receive_threaded ... ok
[INFO] [stdout] test test_request_threaded_receive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/multi_threaded_one_requester_two_responders-d9ccaba7d4c2294e
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/single_threaded-955c49714fed4806
[INFO] [stdout] test test_multi_threaded_one_requester_two_responders ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests reqchan
[INFO] [stdout] test test_multiple_requests ... ok
[INFO] [stdout] test test_multiple_responders ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - (line 51) ... ok
[INFO] [stdout] test src/lib.rs - Requester<T>::try_request (line 259) ... ok
[INFO] [stdout] test src/lib.rs - channel (line 222) ... ok
[INFO] [stdout] test src/lib.rs - ResponseContract<T>::send (line 525) ... ok
[INFO] [stdout] test src/lib.rs - RequestContract<T>::try_receive (line 316) ... ok
[INFO] [stdout] test src/lib.rs - (line 77) ... ok
[INFO] [stdout] test src/lib.rs - Responder<T>::try_respond (line 446) ... ok
[INFO] [stdout] test src/lib.rs - RequestContract<T>::try_cancel (line 375) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2b37760cfac142df9f82a111dd9e5a160792aa19d85db11fe40afcc461ddd318", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b37760cfac142df9f82a111dd9e5a160792aa19d85db11fe40afcc461ddd318", kill_on_drop: false }`
[INFO] [stdout] 2b37760cfac142df9f82a111dd9e5a160792aa19d85db11fe40afcc461ddd318