[INFO] fetching crate fork-tree 3.0.0...
[INFO] testing fork-tree-3.0.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate fork-tree 3.0.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate fork-tree 3.0.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fork-tree 3.0.0
[INFO] finished tweaking crates.io crate fork-tree 3.0.0
[INFO] tweaked toml for crates.io crate fork-tree 3.0.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f05e3f1acd3cfbeaffe36b1fef4d5c9bb99e9f611523530261eeed475b4fc735
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f05e3f1acd3cfbeaffe36b1fef4d5c9bb99e9f611523530261eeed475b4fc735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f05e3f1acd3cfbeaffe36b1fef4d5c9bb99e9f611523530261eeed475b4fc735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f05e3f1acd3cfbeaffe36b1fef4d5c9bb99e9f611523530261eeed475b4fc735", kill_on_drop: false }`
[INFO] [stdout] f05e3f1acd3cfbeaffe36b1fef4d5c9bb99e9f611523530261eeed475b4fc735
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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] ea5a3cc9e6d148205a6207097d773cb8835cc8cecb66d0ba90cb3113f41cb173
[INFO] running `Command { std: "docker" "start" "-a" "ea5a3cc9e6d148205a6207097d773cb8835cc8cecb66d0ba90cb3113f41cb173", kill_on_drop: false }`
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.7.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling bitvec v0.20.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.1
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling parity-scale-codec-derive v2.2.0
[INFO] [stderr]    Compiling parity-scale-codec v2.2.0
[INFO] [stderr]    Compiling fork-tree v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.42s
[INFO] running `Command { std: "docker" "inspect" "ea5a3cc9e6d148205a6207097d773cb8835cc8cecb66d0ba90cb3113f41cb173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea5a3cc9e6d148205a6207097d773cb8835cc8cecb66d0ba90cb3113f41cb173", kill_on_drop: false }`
[INFO] [stdout] ea5a3cc9e6d148205a6207097d773cb8835cc8cecb66d0ba90cb3113f41cb173
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c31de57219bf78053292211cd509df3d99cf6d842aa8174f8ffa16bf08dbab2b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c31de57219bf78053292211cd509df3d99cf6d842aa8174f8ffa16bf08dbab2b", kill_on_drop: false }`
[INFO] [stderr]    Compiling fork-tree v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "c31de57219bf78053292211cd509df3d99cf6d842aa8174f8ffa16bf08dbab2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c31de57219bf78053292211cd509df3d99cf6d842aa8174f8ffa16bf08dbab2b", kill_on_drop: false }`
[INFO] [stdout] c31de57219bf78053292211cd509df3d99cf6d842aa8174f8ffa16bf08dbab2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a3ebdefa794de0fc23a4173d34a9ca1a843871eb102408cde551d2feccdbe7e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1a3ebdefa794de0fc23a4173d34a9ca1a843871eb102408cde551d2feccdbe7e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fork_tree-3a65d62505ed61d9)
[INFO] [stdout] running 13 tests
[INFO] [stdout] test test::finalize_with_ancestor_works ... ok
[INFO] [stdout] test test::finalize_works ... ok
[INFO] [stdout] test test::find_node_backtracks_after_finding_highest_descending_node ... ok
[INFO] [stdout] test test::find_node_works ... ok
[INFO] [stdout] test test::import_doesnt_revert ... ok
[INFO] [stdout] test test::tree_rebalance ... ok
[INFO] [stdout] test test::iter_iterates_in_preorder ... ok
[INFO] [stdout] test test::map_works ... ok
[INFO] [stdout] test test::import_doesnt_add_duplicates ... ok
[INFO] [stdout] test test::finalize_with_descendent_works ... ok
[INFO] [stdout] test test::minimizes_calls_to_is_descendent_of ... ok
[INFO] [stdout] test test::prune_works ... ok
[INFO] [stdout] test test::finalize_root_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fork-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" "1a3ebdefa794de0fc23a4173d34a9ca1a843871eb102408cde551d2feccdbe7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a3ebdefa794de0fc23a4173d34a9ca1a843871eb102408cde551d2feccdbe7e", kill_on_drop: false }`
[INFO] [stdout] 1a3ebdefa794de0fc23a4173d34a9ca1a843871eb102408cde551d2feccdbe7e