[INFO] fetching crate xilem_core 0.4.0...
[INFO] testing xilem_core-0.4.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate xilem_core 0.4.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate xilem_core 0.4.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate xilem_core 0.4.0
[INFO] tweaked toml for crates.io crate xilem_core 0.4.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xilem_core 0.4.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate xilem_core 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3391ca2d63c3071fd330d0c1cd9c5616b410a21cfb10efb304aad3dcc3d01167
[INFO] running `Command { std: "docker" "start" "-a" "3391ca2d63c3071fd330d0c1cd9c5616b410a21cfb10efb304aad3dcc3d01167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3391ca2d63c3071fd330d0c1cd9c5616b410a21cfb10efb304aad3dcc3d01167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3391ca2d63c3071fd330d0c1cd9c5616b410a21cfb10efb304aad3dcc3d01167", kill_on_drop: false }`
[INFO] [stdout] 3391ca2d63c3071fd330d0c1cd9c5616b410a21cfb10efb304aad3dcc3d01167
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3983a99b7682df24c9ef863979333e448b9e6ceff06d8f64b84d58b2a6ec819b
[INFO] running `Command { std: "docker" "start" "-a" "3983a99b7682df24c9ef863979333e448b9e6ceff06d8f64b84d58b2a6ec819b", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-core v0.1.34
[INFO] [stderr]    Compiling foldhash v0.2.0
[INFO] [stderr]    Compiling anymore v1.0.0
[INFO] [stderr]    Compiling hashbrown v0.16.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling xilem_core v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.90s
[INFO] running `Command { std: "docker" "inspect" "3983a99b7682df24c9ef863979333e448b9e6ceff06d8f64b84d58b2a6ec819b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3983a99b7682df24c9ef863979333e448b9e6ceff06d8f64b84d58b2a6ec819b", kill_on_drop: false }`
[INFO] [stdout] 3983a99b7682df24c9ef863979333e448b9e6ceff06d8f64b84d58b2a6ec819b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9deda685090e0034748f0b47ddc087b535dfcd43b6579ea8547bd3f482793e80
[INFO] running `Command { std: "docker" "start" "-a" "9deda685090e0034748f0b47ddc087b535dfcd43b6579ea8547bd3f482793e80", kill_on_drop: false }`
[INFO] [stderr]    Compiling xilem_core v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.72s
[INFO] running `Command { std: "docker" "inspect" "9deda685090e0034748f0b47ddc087b535dfcd43b6579ea8547bd3f482793e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9deda685090e0034748f0b47ddc087b535dfcd43b6579ea8547bd3f482793e80", kill_on_drop: false }`
[INFO] [stdout] 9deda685090e0034748f0b47ddc087b535dfcd43b6579ea8547bd3f482793e80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 991f57382f9d75001c8b82e96e3139ff13bcc0df9c44f0d9f16d91f5c3737fdd
[INFO] running `Command { std: "docker" "start" "-a" "991f57382f9d75001c8b82e96e3139ff13bcc0df9c44f0d9f16d91f5c3737fdd", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/xilem_core-dddc9c01c5193553)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test context::tests::maybe_take_message ... ok
[INFO] [stdout] test context::tests::take_path_full_path ... ok
[INFO] [stdout] test message::tests::message_debug ... ok
[INFO] [stdout] test context::tests::take_message_wrong_type ... ok
[INFO] [stdout] test message::tests::message_downcast_wrong_type ... ok
[INFO] [stdout] test message::tests::message_downcast ... ok
[INFO] [stdout] test context::tests::take_message_twice - should panic ... ok
[INFO] [stderr]      Running tests/any_view.rs (/opt/rustwide/target/debug/deps/any_view-4586b6f148b904c3)
[INFO] [stdout] test context::tests::take_message_nonempty_path - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test no_message_after_stale ... ok
[INFO] [stdout] test no_message_after_stale_then_same_type ... ok
[INFO] [stdout] test messages_to_inner_view ... ok
[INFO] [stdout] test message_after_rebuild ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/arc.rs (/opt/rustwide/target/debug/deps/arc-fed8f94882edad3c)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test arc_no_path ... ok
[INFO] [stdout] test arc_passthrough_message ... ok
[INFO] [stdout] test box_no_path ... ok
[INFO] [stdout] test arc_passthrough_teardown ... ok
[INFO] [stdout] test box_passthrough_message ... ok
[INFO] [stdout] test box_passthrough_rebuild ... ok
[INFO] [stdout] test box_passthrough_rebuild_same_value ... ok
[INFO] [stdout] test box_passthrough_teardown ... ok
[INFO] [stdout] test new_arc_rebuild ... ok
[INFO] [stdout] test same_arc_skip_rebuild ... ok
[INFO] [stdout] test new_arc_rebuild_same_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/array_sequence.rs (/opt/rustwide/target/debug/deps/array_sequence-cde3d609a99d587a)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test two_element_passthrough ... ok
[INFO] [stdout] test two_element_message ... ok
[INFO] [stderr]      Running tests/base_sequence.rs (/opt/rustwide/target/debug/deps/base_sequence-ae5b6e581b062f92)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test one_element_sequence_passthrough ... ok
[INFO] [stdout] test option_message_some ... ok
[INFO] [stdout] test option_none_some ... ok
[INFO] [stdout] test option_message_some_none_stale ... ok
[INFO] [stdout] test option_message_some_some ... ok
[INFO] [stdout] test option_none_none ... ok
[INFO] [stdout] test option_some_none ... ok
[INFO] [stdout] test option_some_some ... ok
[INFO] [stdout] test option_message_some_none_some_stale ... ok
[INFO] [stderr]      Running tests/nested_seq.rs (/opt/rustwide/target/debug/deps/nested_seq-e55c1b01ee987079)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test vec_in_tuple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/one_of.rs (/opt/rustwide/target/debug/deps/one_of-e167a9076cc70394)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test one_of_no_message_after_stale ... ok
[INFO] [stdout] test one_of_no_message_after_stale_then_same_type ... ok
[INFO] [stdout] test one_of_passthrough_teardown ... ok
[INFO] [stdout] test one_of_path ... ok
[INFO] [stdout] test one_of_type_change_rebuild ... ok
[INFO] [stdout] test one_of_passthrough_message ... ok
[INFO] [stdout] test one_of_same_type_rebuild ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/orphan.rs (/opt/rustwide/target/debug/deps/orphan-9b81317e22b82a0f)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test str_as_orphan_view ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tuple_sequence.rs (/opt/rustwide/target/debug/deps/tuple_sequence-90dace54c088a128)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test one_element_passthrough ... ok
[INFO] [stdout] test two_element_message ... ok
[INFO] [stdout] test two_element_passthrough ... ok
[INFO] [stdout] test unit_no_elements ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/vec_sequence.rs (/opt/rustwide/target/debug/deps/vec_sequence-8edf762ac42b4ce3)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test normal_messages ... ok
[INFO] [stdout] test one_two ... ok
[INFO] [stdout] test zero_zero ... ok
[INFO] [stdout] test one_zero ... ok
[INFO] [stdout] test stale_messages ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests xilem_core
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/views/map_message.rs - views::map_message::map_action (line 47) ... ignored
[INFO] [stdout] test src/views/map_state.rs - views::map_state::map_state (line 40) ... ignored
[INFO] [stdout] test src/views/memoize.rs - views::memoize::frozen (line 182) ... ignored
[INFO] [stdout] test src/views/memoize.rs - views::memoize::memoize (line 47) ... ignored
[INFO] [stdout] test src/views/lens.rs - views::lens::lens (line 52) ... ok
[INFO] [stdout] test src/docs.rs - docs (line 19) ... ok
[INFO] [stdout] test src/sequence.rs - sequence::without_elements (line 1065) ... ok
[INFO] [stdout] test src/views/run_once.rs - views::run_once::run_once (line 18) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 4 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/view.rs - view::View (line 55) ... ignored
[INFO] [stdout] test src/view.rs - view::ViewMarker (line 17) ... ignored
[INFO] [stdout] test src/views/run_once.rs - views::run_once::run_once (line 34) - compile fail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.74s; merged doctests compilation took 0.60s
[INFO] running `Command { std: "docker" "inspect" "991f57382f9d75001c8b82e96e3139ff13bcc0df9c44f0d9f16d91f5c3737fdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "991f57382f9d75001c8b82e96e3139ff13bcc0df9c44f0d9f16d91f5c3737fdd", kill_on_drop: false }`
[INFO] [stdout] 991f57382f9d75001c8b82e96e3139ff13bcc0df9c44f0d9f16d91f5c3737fdd