[INFO] cloning repository https://github.com/mosson/btree-study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mosson/btree-study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmosson%2Fbtree-study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmosson%2Fbtree-study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7139d9d9c840817a7a937ba53226c8a571017f9
[INFO] testing mosson/btree-study against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmosson%2Fbtree-study" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mosson/btree-study
[INFO] finished tweaking git repo https://github.com/mosson/btree-study
[INFO] tweaked toml for git repo https://github.com/mosson/btree-study written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mosson/btree-study on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mosson/btree-study already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rstest_macros v0.26.1
[INFO] [stderr]   Downloaded rstest v0.26.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58f5a4c06b4019e0760b2f590ccb5c32c56e55bd006c2a559186ade8bd043f84
[INFO] running `Command { std: "docker" "start" "-a" "58f5a4c06b4019e0760b2f590ccb5c32c56e55bd006c2a559186ade8bd043f84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58f5a4c06b4019e0760b2f590ccb5c32c56e55bd006c2a559186ade8bd043f84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58f5a4c06b4019e0760b2f590ccb5c32c56e55bd006c2a559186ade8bd043f84", kill_on_drop: false }`
[INFO] [stdout] 58f5a4c06b4019e0760b2f590ccb5c32c56e55bd006c2a559186ade8bd043f84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d5f7938766015f43ebe90ba258bce2c65850e7d688902177d06248a39a49525
[INFO] running `Command { std: "docker" "start" "-a" "9d5f7938766015f43ebe90ba258bce2c65850e7d688902177d06248a39a49525", kill_on_drop: false }`
[INFO] [stderr]    Compiling btree-study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn iter(&self) -> BTreeIterator<T, D> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn iter(&self) -> BTreeIterator<'_, T, D> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "9d5f7938766015f43ebe90ba258bce2c65850e7d688902177d06248a39a49525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d5f7938766015f43ebe90ba258bce2c65850e7d688902177d06248a39a49525", kill_on_drop: false }`
[INFO] [stdout] 9d5f7938766015f43ebe90ba258bce2c65850e7d688902177d06248a39a49525
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fb02f03fd98b376112ea0c2b97cad08ce818cb0352e19b5cf84c0dcec929366
[INFO] running `Command { std: "docker" "start" "-a" "6fb02f03fd98b376112ea0c2b97cad08ce818cb0352e19b5cf84c0dcec929366", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling hashbrown v0.16.0
[INFO] [stderr]    Compiling toml_datetime v0.7.2
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-timer v3.0.3
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn iter(&self) -> BTreeIterator<T, D> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn iter(&self) -> BTreeIterator<'_, T, D> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling rstest_macros v0.26.1
[INFO] [stderr]    Compiling indexmap v2.11.4
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling toml_parser v1.0.3
[INFO] [stderr]    Compiling toml_edit v0.23.6
[INFO] [stderr]    Compiling proc-macro-crate v3.4.0
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling rstest v0.26.1
[INFO] [stderr]    Compiling btree-study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn iter(&self) -> BTreeIterator<T, D> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn iter(&self) -> BTreeIterator<'_, T, D> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 18.70s
[INFO] running `Command { std: "docker" "inspect" "6fb02f03fd98b376112ea0c2b97cad08ce818cb0352e19b5cf84c0dcec929366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fb02f03fd98b376112ea0c2b97cad08ce818cb0352e19b5cf84c0dcec929366", kill_on_drop: false }`
[INFO] [stdout] 6fb02f03fd98b376112ea0c2b97cad08ce818cb0352e19b5cf84c0dcec929366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 05a9e6a38849dbe47dd6eb90c6f1bbe5100f86d309d20c1c769eb005ac21e9fd
[INFO] running `Command { std: "docker" "start" "-a" "05a9e6a38849dbe47dd6eb90c6f1bbe5100f86d309d20c1c769eb005ac21e9fd", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:31:17
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn iter(&self) -> BTreeIterator<T, D> {
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn iter(&self) -> BTreeIterator<'_, T, D> {
[INFO] [stderr]    |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: `btree-study` (lib) generated 1 warning (run `cargo fix --lib -p btree-study` to apply 1 suggestion)
[INFO] [stderr] warning: `btree-study` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/btree_study-2a26696b1cebe4f5)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::test_delete_leaf_node ... ok
[INFO] [stdout] test tests::test_find_parent_and_index::case_1 ... ok
[INFO] [stdout] test tests::test_delete_intermediate_node ... ok
[INFO] [stdout] test tests::test_find_parent_and_index::case_2 ... ok
[INFO] [stdout] test tests::test_find_parent_and_index::case_4 ... ok
[INFO] [stdout] test tests::test_find_parent_and_index::case_5 ... ok
[INFO] [stdout] test tests::test_find_parent_and_index::case_6 - should panic ... FAILED
[INFO] [stdout] test tests::test_find_parent_and_index::case_9 ... ok
[INFO] [stdout] test tests::test_find_parent_and_index::case_8 - should panic ... FAILED
[INFO] [stdout] test tests::test_simple_insert ... ok
[INFO] [stdout] test tests::test_find_parent_and_index::case_3 - should panic ... FAILED
[INFO] [stdout] test tests::test_find_parent_and_index::case_7 ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_find_parent_and_index::case_6 stdout ----
[INFO] [stdout] note: test did not panic as expected at src/lib.rs:446:8
[INFO] [stdout] ---- tests::test_find_parent_and_index::case_8 stdout ----
[INFO] [stdout] note: test did not panic as expected at src/lib.rs:446:8
[INFO] [stdout] ---- tests::test_find_parent_and_index::case_3 stdout ----
[INFO] [stdout] note: test did not panic as expected at src/lib.rs:446:8
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::test_find_parent_and_index::case_3
[INFO] [stdout]     tests::test_find_parent_and_index::case_6
[INFO] [stdout]     tests::test_find_parent_and_index::case_8
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 9 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "05a9e6a38849dbe47dd6eb90c6f1bbe5100f86d309d20c1c769eb005ac21e9fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a9e6a38849dbe47dd6eb90c6f1bbe5100f86d309d20c1c769eb005ac21e9fd", kill_on_drop: false }`
[INFO] [stdout] 05a9e6a38849dbe47dd6eb90c6f1bbe5100f86d309d20c1c769eb005ac21e9fd
