[INFO] fetching crate rose_tree 0.3.0...
[INFO] testing rose_tree-0.3.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate rose_tree 0.3.0 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate rose_tree 0.3.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-77/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4521ebde1227c48bf619c1249bd2b17498d77e61e9b96d6536ce5e1d4f9e3b8d
[INFO] running `Command { std: "docker" "start" "-a" "4521ebde1227c48bf619c1249bd2b17498d77e61e9b96d6536ce5e1d4f9e3b8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4521ebde1227c48bf619c1249bd2b17498d77e61e9b96d6536ce5e1d4f9e3b8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4521ebde1227c48bf619c1249bd2b17498d77e61e9b96d6536ce5e1d4f9e3b8d", kill_on_drop: false }`
[INFO] [stdout] 4521ebde1227c48bf619c1249bd2b17498d77e61e9b96d6536ce5e1d4f9e3b8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81a855184804f08001d162f1bd3e8b947d012e7bf23e329ad437c82eb7f6a9a1
[INFO] running `Command { std: "docker" "start" "-a" "81a855184804f08001d162f1bd3e8b947d012e7bf23e329ad437c82eb7f6a9a1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling fixedbitset v0.4.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[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 5.16s
[INFO] running `Command { std: "docker" "inspect" "81a855184804f08001d162f1bd3e8b947d012e7bf23e329ad437c82eb7f6a9a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81a855184804f08001d162f1bd3e8b947d012e7bf23e329ad437c82eb7f6a9a1", kill_on_drop: false }`
[INFO] [stdout] 81a855184804f08001d162f1bd3e8b947d012e7bf23e329ad437c82eb7f6a9a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4104be6fcd9b30461f6629f1e898e1f3231e329523d45c93c985bce5525d6cec
[INFO] running `Command { std: "docker" "start" "-a" "4104be6fcd9b30461f6629f1e898e1f3231e329523d45c93c985bce5525d6cec", kill_on_drop: false }`
[INFO] [stderr]    Compiling rose_tree v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "4104be6fcd9b30461f6629f1e898e1f3231e329523d45c93c985bce5525d6cec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4104be6fcd9b30461f6629f1e898e1f3231e329523d45c93c985bce5525d6cec", kill_on_drop: false }`
[INFO] [stdout] 4104be6fcd9b30461f6629f1e898e1f3231e329523d45c93c985bce5525d6cec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cf9a321e8002e8e6e2b9b92c2e47fb74c6f8e9395ee0383888a817cf79fa312e
[INFO] running `Command { std: "docker" "start" "-a" "cf9a321e8002e8e6e2b9b92c2e47fb74c6f8e9395ee0383888a817cf79fa312e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rose_tree-9ad3a19740c4c702)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/iterators.rs (/opt/rustwide/target/debug/deps/iterators-4373a4db2ae70a1b)
[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] [stderr]      Running tests/remove.rs (/opt/rustwide/target/debug/deps/remove-2a25df1085b10e6c)
[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 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/walkers.rs (/opt/rustwide/target/debug/deps/walkers-92dd2948156392a0)
[INFO] [stdout] 
[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" "cf9a321e8002e8e6e2b9b92c2e47fb74c6f8e9395ee0383888a817cf79fa312e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf9a321e8002e8e6e2b9b92c2e47fb74c6f8e9395ee0383888a817cf79fa312e", kill_on_drop: false }`
[INFO] [stdout] cf9a321e8002e8e6e2b9b92c2e47fb74c6f8e9395ee0383888a817cf79fa312e