[INFO] fetching crate tree_arena 0.2.0...
[INFO] testing tree_arena-0.2.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate tree_arena 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate tree_arena 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tree_arena 0.2.0
[INFO] tweaked toml for crates.io crate tree_arena 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree_arena 0.2.0 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 tree_arena 0.2.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e6c206da84b1bc4f1fc345de51e68709812b6673cf539c68c2264bc26731f2ae
[INFO] running `Command { std: "docker" "start" "-a" "e6c206da84b1bc4f1fc345de51e68709812b6673cf539c68c2264bc26731f2ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6c206da84b1bc4f1fc345de51e68709812b6673cf539c68c2264bc26731f2ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6c206da84b1bc4f1fc345de51e68709812b6673cf539c68c2264bc26731f2ae", kill_on_drop: false }`
[INFO] [stdout] e6c206da84b1bc4f1fc345de51e68709812b6673cf539c68c2264bc26731f2ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 8b8750b66e23782799163108e123ce3a1eb090da2d55b74d2a1066253a692a83
[INFO] running `Command { std: "docker" "start" "-a" "8b8750b66e23782799163108e123ce3a1eb090da2d55b74d2a1066253a692a83", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashbrown v0.16.0
[INFO] [stderr]    Compiling tree_arena v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "8b8750b66e23782799163108e123ce3a1eb090da2d55b74d2a1066253a692a83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b8750b66e23782799163108e123ce3a1eb090da2d55b74d2a1066253a692a83", kill_on_drop: false }`
[INFO] [stdout] 8b8750b66e23782799163108e123ce3a1eb090da2d55b74d2a1066253a692a83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f1b19abb58667931f0743f7d490f33f8d5a46424e82e4b4e0bbc22d16714ffae
[INFO] running `Command { std: "docker" "start" "-a" "f1b19abb58667931f0743f7d490f33f8d5a46424e82e4b4e0bbc22d16714ffae", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree_arena v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "f1b19abb58667931f0743f7d490f33f8d5a46424e82e4b4e0bbc22d16714ffae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1b19abb58667931f0743f7d490f33f8d5a46424e82e4b4e0bbc22d16714ffae", kill_on_drop: false }`
[INFO] [stdout] f1b19abb58667931f0743f7d490f33f8d5a46424e82e4b4e0bbc22d16714ffae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7b7ddd16e15ad8784baee0a595321218ffe156ab790e8de78515b7030984d4f5
[INFO] running `Command { std: "docker" "start" "-a" "7b7ddd16e15ad8784baee0a595321218ffe156ab790e8de78515b7030984d4f5", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_arena-c17a6ecb0ab9645d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic_tests.rs (/opt/rustwide/target/debug/deps/basic_tests-16a92e260a160930)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test arena_mutate_parent_and_child_at_once ... ok
[INFO] [stdout] test arena_item_removal ... ok
[INFO] [stdout] test arena_insertions ... ok
[INFO] [stdout] test mem_swap ... ok
[INFO] [stdout] test reparent_between_roots ... ok
[INFO] [stdout] test reparent_node_simple ... ok
[INFO] [stdout] test reparent_node_to_great_grandparent ... ok
[INFO] [stdout] test reparent_node_with_children ... ok
[INFO] [stdout] test root_ids ... ok
[INFO] [stdout] test child_ids ... ok
[INFO] [stdout] test reparent_node_to_parent ... ok
[INFO] [stdout] test arena_duplicate_insertion - should panic ... ok
[INFO] [stdout] test reparent_child_equals_new_parent - should panic ... ok
[INFO] [stdout] test reparent_child_not_found - should panic ... ok
[INFO] [stdout] test reparent_cycle - should panic ... ok
[INFO] [stdout] test reparent_new_parent_not_found - should panic ... ok
[INFO] [stdout] test reparent_root - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tree_arena
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7b7ddd16e15ad8784baee0a595321218ffe156ab790e8de78515b7030984d4f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b7ddd16e15ad8784baee0a595321218ffe156ab790e8de78515b7030984d4f5", kill_on_drop: false }`
[INFO] [stdout] 7b7ddd16e15ad8784baee0a595321218ffe156ab790e8de78515b7030984d4f5