[INFO] updating cached repository natreed/rust_tree_lib
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/natreed/rust_tree_lib
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/natreed/rust_tree_lib" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/natreed/rust_tree_lib"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/natreed/rust_tree_lib'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/natreed/rust_tree_lib" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/natreed/rust_tree_lib"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/natreed/rust_tree_lib'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 413fcd4e5415ce33fb32512f92a9f8e017f3f9f5
[INFO] sha for GitHub repo natreed/rust_tree_lib: 413fcd4e5415ce33fb32512f92a9f8e017f3f9f5
[INFO] validating manifest of natreed/rust_tree_lib on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of natreed/rust_tree_lib on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing natreed/rust_tree_lib
[INFO] finished frobbing natreed/rust_tree_lib
[INFO] frobbed toml for natreed/rust_tree_lib written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/natreed/rust_tree_lib/Cargo.toml
[INFO] started frobbing natreed/rust_tree_lib
[INFO] finished frobbing natreed/rust_tree_lib
[INFO] frobbed toml for natreed/rust_tree_lib written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/natreed/rust_tree_lib/Cargo.toml
[INFO] crate natreed/rust_tree_lib has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing natreed/rust_tree_lib against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/natreed/rust_tree_lib:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] db0925bc01f9f733363155344a45de4436c1a71e480990ffb69d29fee5320f98
[INFO] running `"docker" "start" "-a" "db0925bc01f9f733363155344a45de4436c1a71e480990ffb69d29fee5320f98"`
[INFO] [stderr]    Compiling generic_tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `"docker" "inspect" "db0925bc01f9f733363155344a45de4436c1a71e480990ffb69d29fee5320f98"`
[INFO] running `"docker" "rm" "-f" "db0925bc01f9f733363155344a45de4436c1a71e480990ffb69d29fee5320f98"`
[INFO] [stdout] db0925bc01f9f733363155344a45de4436c1a71e480990ffb69d29fee5320f98
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/natreed/rust_tree_lib:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1cb73d245c5a2c5995a95957996655a7cbbc551e5ee3ee15bee1729fdb36e817
[INFO] running `"docker" "start" "-a" "1cb73d245c5a2c5995a95957996655a7cbbc551e5ee3ee15bee1729fdb36e817"`
[INFO] [stderr]    Compiling generic_tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "1cb73d245c5a2c5995a95957996655a7cbbc551e5ee3ee15bee1729fdb36e817"`
[INFO] running `"docker" "rm" "-f" "1cb73d245c5a2c5995a95957996655a7cbbc551e5ee3ee15bee1729fdb36e817"`
[INFO] [stdout] 1cb73d245c5a2c5995a95957996655a7cbbc551e5ee3ee15bee1729fdb36e817
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/natreed/rust_tree_lib:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] 593fd32d6c621a37a6aeeb73671b4df2a14529ad52bba8da33eed69c532f0df7
[INFO] running `"docker" "start" "-a" "593fd32d6c621a37a6aeeb73671b4df2a14529ad52bba8da33eed69c532f0df7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/generic_tree-10947ee8ded841c8
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test add_node ... ok
[INFO] [stdout] test min_value_test ... ok
[INFO] [stdout] test min_depth_test ... ok
[INFO] [stdout] test contains_test ... ok
[INFO] [stdout] test merge_test ... ok
[INFO] [stdout] test swap_left_test ... ok
[INFO] [stdout] test max_depth_test ... ok
[INFO] [stdout] test take_left_test ... ok
[INFO] [stdout] test in_order_iterator_test ... ok
[INFO] [stdout] test take_right_test ... ok
[INFO] [stdout] test size_test ... ok
[INFO] [stdout] test post_iterator_test ... ok
[INFO] [stdout] test pre_iterator_test ... ok
[INFO] [stdout] test swap_right_test ... ok
[INFO] [stdout] test find_test ... ok
[INFO] [stdout] test in_order_into_iterator_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests generic_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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "593fd32d6c621a37a6aeeb73671b4df2a14529ad52bba8da33eed69c532f0df7"`
[INFO] running `"docker" "rm" "-f" "593fd32d6c621a37a6aeeb73671b4df2a14529ad52bba8da33eed69c532f0df7"`
[INFO] [stdout] 593fd32d6c621a37a6aeeb73671b4df2a14529ad52bba8da33eed69c532f0df7