[INFO] fetching crate rose_tree 0.3.0...
[INFO] testing rose_tree-0.3.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate rose_tree 0.3.0 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate rose_tree 0.3.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rose_tree 0.3.0
[INFO] finished tweaking crates.io crate rose_tree 0.3.0
[INFO] tweaked toml for crates.io crate rose_tree 0.3.0 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f6c5321a351849cfdd1ef82c4b9da82a4eda7db642a190d11ed698fcfc40650
[INFO] running `Command { std: "docker" "start" "-a" "7f6c5321a351849cfdd1ef82c4b9da82a4eda7db642a190d11ed698fcfc40650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f6c5321a351849cfdd1ef82c4b9da82a4eda7db642a190d11ed698fcfc40650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f6c5321a351849cfdd1ef82c4b9da82a4eda7db642a190d11ed698fcfc40650", kill_on_drop: false }`
[INFO] [stdout] 7f6c5321a351849cfdd1ef82c4b9da82a4eda7db642a190d11ed698fcfc40650
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf25cbcb64501de6a8a8c1d6c31837ba4eb613659b5af6247c5cb4b35dae8226
[INFO] running `Command { std: "docker" "start" "-a" "bf25cbcb64501de6a8a8c1d6c31837ba4eb613659b5af6247c5cb4b35dae8226", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixedbitset v0.4.1
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling petgraph v0.6.0
[INFO] [stderr]    Compiling rose_tree v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.43s
[INFO] running `Command { std: "docker" "inspect" "bf25cbcb64501de6a8a8c1d6c31837ba4eb613659b5af6247c5cb4b35dae8226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf25cbcb64501de6a8a8c1d6c31837ba4eb613659b5af6247c5cb4b35dae8226", kill_on_drop: false }`
[INFO] [stdout] bf25cbcb64501de6a8a8c1d6c31837ba4eb613659b5af6247c5cb4b35dae8226
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 332bcd36538fcc14164bdfa68f729d9d0930218c32138996f153e46c5100cbb8
[INFO] running `Command { std: "docker" "start" "-a" "332bcd36538fcc14164bdfa68f729d9d0930218c32138996f153e46c5100cbb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rose_tree v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rose_tree-3d7a93bc793b427f)
[INFO] [stderr]   Executable tests/iterators.rs (/opt/rustwide/target/debug/deps/iterators-f7336758287ae1a8)
[INFO] [stderr]   Executable tests/remove.rs (/opt/rustwide/target/debug/deps/remove-71ef8188572625e0)
[INFO] [stderr]   Executable tests/walkers.rs (/opt/rustwide/target/debug/deps/walkers-1bcee4e1cf0e99f9)
[INFO] running `Command { std: "docker" "inspect" "332bcd36538fcc14164bdfa68f729d9d0930218c32138996f153e46c5100cbb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "332bcd36538fcc14164bdfa68f729d9d0930218c32138996f153e46c5100cbb8", kill_on_drop: false }`
[INFO] [stdout] 332bcd36538fcc14164bdfa68f729d9d0930218c32138996f153e46c5100cbb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1af9d11f1a6ebfd4fbfc79e205b9a5dc05e674489eefd1b2490a585f80cd362e
[INFO] running `Command { std: "docker" "start" "-a" "1af9d11f1a6ebfd4fbfc79e205b9a5dc05e674489eefd1b2490a585f80cd362e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rose_tree-3d7a93bc793b427f)
[INFO] [stderr]      Running tests/iterators.rs (/opt/rustwide/target/debug/deps/iterators-f7336758287ae1a8)
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test children ... ok
[INFO] [stdout] test parent_recursion ... ok
[INFO] [stdout] test siblings ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/remove.rs (/opt/rustwide/target/debug/deps/remove-71ef8188572625e0)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/walkers.rs (/opt/rustwide/target/debug/deps/walkers-1bcee4e1cf0e99f9)
[INFO] [stdout] running 1 test
[INFO] [stdout] test remove_node ... 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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test walk_children ... ok
[INFO] [stdout] test walk_siblings ... ok
[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] [stderr]    Doc-tests rose_tree
[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" "1af9d11f1a6ebfd4fbfc79e205b9a5dc05e674489eefd1b2490a585f80cd362e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1af9d11f1a6ebfd4fbfc79e205b9a5dc05e674489eefd1b2490a585f80cd362e", kill_on_drop: false }`
[INFO] [stdout] 1af9d11f1a6ebfd4fbfc79e205b9a5dc05e674489eefd1b2490a585f80cd362e