[INFO] fetching crate indextree 4.2.0...
[INFO] testing indextree-4.2.0 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate indextree 4.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate indextree 4.2.0 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate indextree 4.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate indextree 4.2.0
[INFO] tweaked toml for crates.io crate indextree 4.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate indextree 4.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4e019732f648565845151b4d1e8bf9f193371cb28247d911d8896fcee8a78263
[INFO] running `Command { std: "docker" "start" "-a" "4e019732f648565845151b4d1e8bf9f193371cb28247d911d8896fcee8a78263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e019732f648565845151b4d1e8bf9f193371cb28247d911d8896fcee8a78263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e019732f648565845151b4d1e8bf9f193371cb28247d911d8896fcee8a78263", kill_on_drop: false }`
[INFO] [stdout] 4e019732f648565845151b4d1e8bf9f193371cb28247d911d8896fcee8a78263
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c759015124db8ab8c719fe7e1fd3760e9b9d01f6f68da2b52823e05ef9e4b76e
[INFO] running `Command { std: "docker" "start" "-a" "c759015124db8ab8c719fe7e1fd3760e9b9d01f6f68da2b52823e05ef9e4b76e", kill_on_drop: false }`
[INFO] [stderr]    Compiling indextree v4.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "c759015124db8ab8c719fe7e1fd3760e9b9d01f6f68da2b52823e05ef9e4b76e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c759015124db8ab8c719fe7e1fd3760e9b9d01f6f68da2b52823e05ef9e4b76e", kill_on_drop: false }`
[INFO] [stdout] c759015124db8ab8c719fe7e1fd3760e9b9d01f6f68da2b52823e05ef9e4b76e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e56fb0dbfdb49aa6011189ec06e67f64d238dd06767b319b40eb47ebb5571071
[INFO] running `Command { std: "docker" "start" "-a" "e56fb0dbfdb49aa6011189ec06e67f64d238dd06767b319b40eb47ebb5571071", kill_on_drop: false }`
[INFO] [stderr]    Compiling indextree v4.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.05s
[INFO] running `Command { std: "docker" "inspect" "e56fb0dbfdb49aa6011189ec06e67f64d238dd06767b319b40eb47ebb5571071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e56fb0dbfdb49aa6011189ec06e67f64d238dd06767b319b40eb47ebb5571071", kill_on_drop: false }`
[INFO] [stdout] e56fb0dbfdb49aa6011189ec06e67f64d238dd06767b319b40eb47ebb5571071
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4d7aac828be1dc3c6a1729a4baf0c2ee42274e1f55fe1106d8977c9106c7719f
[INFO] running `Command { std: "docker" "start" "-a" "4d7aac828be1dc3c6a1729a4baf0c2ee42274e1f55fe1106d8977c9106c7719f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/indextree-34d33f6fbe15b3ff
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/insert_error-93f90185d6d6e7bd
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test append_self ... ok
[INFO] [stdout] test prepend_self ... ok
[INFO] [stdout] test insert_before_self ... ok
[INFO] [stdout] test insert_after_self ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lib-e35292adc415f40d
[INFO] [stdout] test first_prepend ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/remove-e9a0322b14b66954
[INFO] [stdout] test get ... ok
[INFO] [stdout] test get_mut ... ok
[INFO] [stdout] test iter ... ok
[INFO] [stdout] test remove ... ok
[INFO] [stdout] test insert_removed_node ... ok
[INFO] [stdout] test retrieve_node_id ... ok
[INFO] [stdout] test success_create ... ok
[INFO] [stdout] test success_detach ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test middle_child_with_no_children ... ok
[INFO] [stdout] test first_child_with_no_children ... ok
[INFO] [stdout] test toplevel_with_multiple_children ... ok
[INFO] [stdout] test toplevel_with_single_child ... ok
[INFO] [stdout] test middle_child_with_multiple_children ... ok
[INFO] [stdout] test single_child_with_no_children ... ok
[INFO] [stdout] test middle_child_with_single_child ... ok
[INFO] [stdout] test single_child_with_single_child ... ok
[INFO] [stdout] test last_child_with_no_children ... ok
[INFO] [stdout] test toplevel_with_no_child ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests indextree
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::iter (line 177) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::checked_prepend (line 620) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::checked_insert_after (line 715) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::checked_insert_before (line 815) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::get (line 124) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::get_mut (line 157) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::get (line 134) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::is_empty (line 103) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::checked_append (line 530) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::new_node (line 67) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::iter (line 189) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::ancestors (line 69) ... ok
[INFO] [stdout] test src/arena.rs - arena::Arena<T>::count (line 85) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::append (line 485) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::descendants (line 261) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::preceding_siblings (line 112) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::following_siblings (line 151) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::remove (line 864) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::prepend (line 575) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::children (line 186) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::reverse_children (line 221) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::detach (line 417) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::reverse_traverse (line 384) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::insert_after (line 664) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::traverse (line 306) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::insert_before (line 764) ... ok
[INFO] [stdout] test src/id.rs - id::NodeId::reverse_traverse (line 350) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::next_sibling (line 222) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::last_child (line 115) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::next_sibling (line 198) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::is_removed (line 251) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::parent (line 59) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::first_child (line 87) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::previous_sibling (line 168) ... ok
[INFO] [stdout] test src/node.rs - node::Node<T>::previous_sibling (line 144) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4d7aac828be1dc3c6a1729a4baf0c2ee42274e1f55fe1106d8977c9106c7719f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d7aac828be1dc3c6a1729a4baf0c2ee42274e1f55fe1106d8977c9106c7719f", kill_on_drop: false }`
[INFO] [stdout] 4d7aac828be1dc3c6a1729a4baf0c2ee42274e1f55fe1106d8977c9106c7719f