[INFO] fetching crate owning_ref 0.4.1...
[INFO] testing owning_ref-0.4.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate owning_ref 0.4.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate owning_ref 0.4.1 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 owning_ref 0.4.1
[INFO] finished tweaking crates.io crate owning_ref 0.4.1
[INFO] tweaked toml for crates.io crate owning_ref 0.4.1 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 2104af302b925b582c0e2f855064465693459d58371e3ef7525ccdb8e4b878a4
[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" "2104af302b925b582c0e2f855064465693459d58371e3ef7525ccdb8e4b878a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2104af302b925b582c0e2f855064465693459d58371e3ef7525ccdb8e4b878a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2104af302b925b582c0e2f855064465693459d58371e3ef7525ccdb8e4b878a4", kill_on_drop: false }`
[INFO] [stdout] 2104af302b925b582c0e2f855064465693459d58371e3ef7525ccdb8e4b878a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 6ecfbb88eb6fce338a1aff7783faa0146dadb5bccdc58697046136bed5a9839b
[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" "6ecfbb88eb6fce338a1aff7783faa0146dadb5bccdc58697046136bed5a9839b", kill_on_drop: false }`
[INFO] [stderr]    Compiling owning_ref v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1074:28
[INFO] [stdout]      |
[INFO] [stdout] 1074 |     where O: Send, for<'a> (&'a T): Send {}
[INFO] [stdout]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1076:28
[INFO] [stdout]      |
[INFO] [stdout] 1076 |     where O: Sync, for<'a> (&'a T): Sync {}
[INFO] [stdout]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1079:28
[INFO] [stdout]      |
[INFO] [stdout] 1079 |     where O: Send, for<'a> (&'a mut T): Send {}
[INFO] [stdout]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1081:28
[INFO] [stdout]      |
[INFO] [stdout] 1081 |     where O: Sync, for<'a> (&'a mut T): Sync {}
[INFO] [stdout]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "6ecfbb88eb6fce338a1aff7783faa0146dadb5bccdc58697046136bed5a9839b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ecfbb88eb6fce338a1aff7783faa0146dadb5bccdc58697046136bed5a9839b", kill_on_drop: false }`
[INFO] [stdout] 6ecfbb88eb6fce338a1aff7783faa0146dadb5bccdc58697046136bed5a9839b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] b83137b5db8ad71cddf62be05d7bbbb8b6865e41ff4a2033feb5d0ab670e7a9b
[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" "b83137b5db8ad71cddf62be05d7bbbb8b6865e41ff4a2033feb5d0ab670e7a9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling owning_ref v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1074:28
[INFO] [stdout]      |
[INFO] [stdout] 1074 |     where O: Send, for<'a> (&'a T): Send {}
[INFO] [stdout]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1076:28
[INFO] [stdout]      |
[INFO] [stdout] 1076 |     where O: Sync, for<'a> (&'a T): Sync {}
[INFO] [stdout]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1079:28
[INFO] [stdout]      |
[INFO] [stdout] 1079 |     where O: Send, for<'a> (&'a mut T): Send {}
[INFO] [stdout]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1081:28
[INFO] [stdout]      |
[INFO] [stdout] 1081 |     where O: Sync, for<'a> (&'a mut T): Sync {}
[INFO] [stdout]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1074:28
[INFO] [stdout]      |
[INFO] [stdout] 1074 |     where O: Send, for<'a> (&'a T): Send {}
[INFO] [stdout]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1076:28
[INFO] [stdout]      |
[INFO] [stdout] 1076 |     where O: Sync, for<'a> (&'a T): Sync {}
[INFO] [stdout]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1079:28
[INFO] [stdout]      |
[INFO] [stdout] 1079 |     where O: Send, for<'a> (&'a mut T): Send {}
[INFO] [stdout]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1081:28
[INFO] [stdout]      |
[INFO] [stdout] 1081 |     where O: Sync, for<'a> (&'a mut T): Sync {}
[INFO] [stdout]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.35s
[INFO] running `Command { std: "docker" "inspect" "b83137b5db8ad71cddf62be05d7bbbb8b6865e41ff4a2033feb5d0ab670e7a9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b83137b5db8ad71cddf62be05d7bbbb8b6865e41ff4a2033feb5d0ab670e7a9b", kill_on_drop: false }`
[INFO] [stdout] b83137b5db8ad71cddf62be05d7bbbb8b6865e41ff4a2033feb5d0ab670e7a9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stdout] 6b784bffae40b63114f2dcd92ffbc82a5c8fa757c53c4fbf3f51324b416e508d
[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" "6b784bffae40b63114f2dcd92ffbc82a5c8fa757c53c4fbf3f51324b416e508d", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1074:28
[INFO] [stderr]      |
[INFO] [stderr] 1074 |     where O: Send, for<'a> (&'a T): Send {}
[INFO] [stderr]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1076:28
[INFO] [stderr]      |
[INFO] [stderr] 1076 |     where O: Sync, for<'a> (&'a T): Sync {}
[INFO] [stderr]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1079:28
[INFO] [stderr]      |
[INFO] [stderr] 1079 |     where O: Send, for<'a> (&'a mut T): Send {}
[INFO] [stderr]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1081:28
[INFO] [stderr]      |
[INFO] [stderr] 1081 |     where O: Sync, for<'a> (&'a mut T): Sync {}
[INFO] [stderr]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1074:28
[INFO] [stderr]      |
[INFO] [stderr] 1074 |     where O: Send, for<'a> (&'a T): Send {}
[INFO] [stderr]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1076:28
[INFO] [stderr]      |
[INFO] [stderr] 1076 |     where O: Sync, for<'a> (&'a T): Sync {}
[INFO] [stderr]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1079:28
[INFO] [stderr]      |
[INFO] [stderr] 1079 |     where O: Send, for<'a> (&'a mut T): Send {}
[INFO] [stderr]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/lib.rs:1081:28
[INFO] [stderr]      |
[INFO] [stderr] 1081 |     where O: Sync, for<'a> (&'a mut T): Sync {}
[INFO] [stderr]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/owning_ref-bbba0f8a0e42d20d
[INFO] [stdout] running 64 tests
[INFO] [stdout] test tests::owning_handle::owning_handle ... ok
[INFO] [stdout] test tests::owning_handle::try_owning_handle_err ... ok
[INFO] [stdout] test tests::owning_handle::owning_handle_safe ... ok
[INFO] [stdout] test tests::owning_ref::as_owner ... ok
[INFO] [stdout] test tests::owning_handle::nested ... ok
[INFO] [stdout] test tests::owning_handle::owning_handle_safe_2 ... ok
[INFO] [stdout] test tests::owning_ref::borrow ... ok
[INFO] [stdout] test tests::owning_handle::owning_handle_mut_safe ... ok
[INFO] [stdout] test tests::owning_ref::cmp ... ok
[INFO] [stdout] test tests::owning_handle::try_owning_handle_ok ... ok
[INFO] [stdout] test tests::owning_ref::erased_owner ... ok
[INFO] [stdout] test tests::owning_ref::map_with_owner ... ok
[INFO] [stdout] test tests::owning_ref::new_deref ... ok
[INFO] [stdout] test tests::owning_ref::map_static_ref ... ok
[INFO] [stdout] test tests::owning_ref::map_chained_inference ... ok
[INFO] [stdout] test tests::owning_ref::map_chained ... ok
[INFO] [stdout] test tests::owning_ref::fmt_debug ... ok
[INFO] [stdout] test tests::owning_ref::into_owner ... ok
[INFO] [stdout] test tests::owning_ref::total_erase_box ... ok
[INFO] [stdout] test tests::owning_ref::hash ... ok
[INFO] [stdout] test tests::owning_ref::try_map_with_owner_err ... ok
[INFO] [stdout] test tests::owning_ref::into ... ok
[INFO] [stdout] test tests::owning_ref::try_map1 ... ok
[INFO] [stdout] test tests::owning_ref::non_static_erased_owner ... ok
[INFO] [stdout] test tests::owning_ref::map_heap_ref ... ok
[INFO] [stdout] test tests::owning_ref::raii_locks ... ok
[INFO] [stdout] test tests::owning_ref::eq ... ok
[INFO] [stdout] test tests::owning_ref::partial_cmp ... ok
[INFO] [stdout] test tests::owning_ref::total_erase ... ok
[INFO] [stdout] test tests::owning_ref::try_map2 ... ok
[INFO] [stdout] test tests::owning_ref::map_offset_ref ... ok
[INFO] [stdout] test tests::owning_ref::try_map_with_owner_ok ... ok
[INFO] [stdout] test tests::owning_ref_mut::map_chained_inference ... ok
[INFO] [stdout] test tests::owning_ref_mut::map_heap_ref ... ok
[INFO] [stdout] test tests::owning_ref_mut::map_mut_chained ... ok
[INFO] [stdout] test tests::owning_ref_mut::into ... ok
[INFO] [stdout] test tests::owning_ref_mut::map_static_ref ... ok
[INFO] [stdout] test tests::owning_ref_mut::map_mut_static_ref ... ok
[INFO] [stdout] test tests::owning_ref_mut::new_deref ... ok
[INFO] [stdout] test tests::owning_ref_mut::fmt_debug ... ok
[INFO] [stdout] test tests::owning_ref_mut::mutate ... ok
[INFO] [stdout] test tests::owning_ref_mut::as_owner ... ok
[INFO] [stdout] test tests::owning_ref_mut::borrow ... ok
[INFO] [stdout] test tests::owning_ref_mut::cmp ... ok
[INFO] [stdout] test tests::owning_ref_mut::eq ... ok
[INFO] [stdout] test tests::owning_ref_mut::into_owner ... ok
[INFO] [stdout] test tests::owning_ref_mut::into_owning_ref ... ok
[INFO] [stdout] test tests::owning_ref_mut::map_mut_offset_ref ... ok
[INFO] [stdout] test tests::owning_ref_mut::map_offset_ref ... ok
[INFO] [stdout] test tests::owning_ref_mut::map_mut_heap_ref ... ok
[INFO] [stdout] test tests::owning_ref_mut::erased_owner ... ok
[INFO] [stdout] test tests::owning_ref_mut::hash ... ok
[INFO] [stdout] test tests::owning_ref_mut::new_deref_mut ... ok
[INFO] [stdout] test tests::owning_ref_mut::try_map_mut ... ok
[INFO] [stdout] test tests::owning_ref_mut::non_static_erased_owner ... ok
[INFO] [stdout] test tests::owning_ref_mut::try_map1 ... ok
[INFO] [stdout] test tests::owning_ref_mut::partial_cmp ... ok
[INFO] [stdout] test tests::owning_ref_mut::ref_mut ... ok
[INFO] [stdout] test tests::owning_ref_mut::total_erase ... ok
[INFO] [stdout] test tests::owning_ref_mut::total_erase_box ... ok
[INFO] [stdout] test tests::owning_ref_mut::try_map2 ... ok
[INFO] [stdout] test tests::owning_ref_mut::try_map3 ... ok
[INFO] [stdout] test tests::owning_ref_mut::try_map4 ... ok
[INFO] [stdout] test tests::owning_ref_mut::raii_locks ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 64 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests owning_ref
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> /opt/rustwide/workdir/src/lib.rs:1074:28
[INFO] [stderr]      |
[INFO] [stderr] 1074 |     where O: Send, for<'a> (&'a T): Send {}
[INFO] [stderr]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> /opt/rustwide/workdir/src/lib.rs:1076:28
[INFO] [stderr]      |
[INFO] [stderr] 1076 |     where O: Sync, for<'a> (&'a T): Sync {}
[INFO] [stderr]      |                            ^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> /opt/rustwide/workdir/src/lib.rs:1079:28
[INFO] [stderr]      |
[INFO] [stderr] 1079 |     where O: Send, for<'a> (&'a mut T): Send {}
[INFO] [stderr]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> /opt/rustwide/workdir/src/lib.rs:1081:28
[INFO] [stderr]      |
[INFO] [stderr] 1081 |     where O: Sync, for<'a> (&'a mut T): Sync {}
[INFO] [stderr]      |                            ^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test src/lib.rs - (line 12) ... ignored
[INFO] [stdout] test src/lib.rs - (line 106) ... ok
[INFO] [stdout] test src/lib.rs - (line 118) ... ok
[INFO] [stdout] test src/lib.rs - OwningRef<O, T>::new (line 302) ... ok
[INFO] [stdout] test src/lib.rs - (line 219) ... ok
[INFO] [stdout] test src/lib.rs - OwningRefMut<O, T>::erase_owner (line 739) ... ok
[INFO] [stdout] test src/lib.rs - OwningRef<O, T>::try_map (line 404) ... ok
[INFO] [stdout] test src/lib.rs - (line 132) ... ok
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] test src/lib.rs - OwningRef<O, T>::erase_owner (line 495) ... ok
[INFO] [stdout] test src/lib.rs - (line 56) ... ok
[INFO] [stdout] test src/lib.rs - (line 188) ... ok
[INFO] [stdout] test src/lib.rs - OwningRef<O, T>::map (line 342) ... ok
[INFO] [stdout] test src/lib.rs - OwningRef<O, T>::map_with_owner (line 372) ... ok
[INFO] [stdout] test src/lib.rs - OwningRef<O, T>::try_map_with_owner (line 436) ... ok
[INFO] [stdout] test src/lib.rs - (line 78) ... ok
[INFO] [stdout] test src/lib.rs - (line 155) ... ok
[INFO] [stdout] test src/lib.rs - OwningRefMut<O, T>::map (line 589) ... ok
[INFO] [stdout] test src/lib.rs - OwningRefMut<O, T>::map_mut (line 619) ... ok
[INFO] [stdout] test src/lib.rs - OwningRefMut<O, T>::new (line 549) ... ok
[INFO] [stdout] test src/lib.rs - OwningRefMut<O, T>::try_map (line 649) ... ok
[INFO] [stdout] test src/lib.rs - OwningRefMut<O, T>::try_map_mut (line 681) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6b784bffae40b63114f2dcd92ffbc82a5c8fa757c53c4fbf3f51324b416e508d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b784bffae40b63114f2dcd92ffbc82a5c8fa757c53c4fbf3f51324b416e508d", kill_on_drop: false }`
[INFO] [stdout] 6b784bffae40b63114f2dcd92ffbc82a5c8fa757c53c4fbf3f51324b416e508d