[INFO] fetching crate grove 0.2.0...
[INFO] testing grove-0.2.0 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate grove 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate grove 0.2.0
[INFO] finished tweaking crates.io crate grove 0.2.0
[INFO] tweaked toml for crates.io crate grove 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate grove 0.2.0 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate grove 0.2.0 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b262e681b620da83476df58165073f29261069dffcd89f688660057eae24ae7
[INFO] running `Command { std: "docker" "start" "-a" "8b262e681b620da83476df58165073f29261069dffcd89f688660057eae24ae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b262e681b620da83476df58165073f29261069dffcd89f688660057eae24ae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b262e681b620da83476df58165073f29261069dffcd89f688660057eae24ae7", kill_on_drop: false }`
[INFO] [stdout] 8b262e681b620da83476df58165073f29261069dffcd89f688660057eae24ae7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 189041392f5d50c3478e2b301cefba5b75495617174e8471de30fee680edd7a8
[INFO] running `Command { std: "docker" "start" "-a" "189041392f5d50c3478e2b301cefba5b75495617174e8471de30fee680edd7a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling recursive_reference v0.3.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling derive_destructure v1.0.0
[INFO] [stderr]    Compiling grove v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `implementations::*`
[INFO] [stdout]   --> src/trees/basic_tree/mod.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub use implementations::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/trees/mod.rs:75:39
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn slice<L: locators::Locator<D>>(&mut self, locator: L) -> slice::Slice<D, Self, L> {
[INFO] [stdout]    |                                       ^^^^^^^^^                 ------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn slice<L: locators::Locator<D>>(&mut self, locator: L) -> slice::Slice<'_, D, Self, L> {
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/trees/basic_tree/walker.rs:282:28
[INFO] [stdout]     |
[INFO] [stdout] 282 |     pub fn detached_walker(&mut self) -> BasicWalker<D, T> {
[INFO] [stdout]     |                            ^^^^^^^^^     ----------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 282 |     pub fn detached_walker(&mut self) -> BasicWalker<'_, D, T> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/trees/splay.rs:65:25
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn basic_walker(&mut self) -> BasicWalker<D> {
[INFO] [stdout]    |                         ^^^^^^^^^     -------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn basic_walker(&mut self) -> BasicWalker<'_, D> {
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.12s
[INFO] running `Command { std: "docker" "inspect" "189041392f5d50c3478e2b301cefba5b75495617174e8471de30fee680edd7a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "189041392f5d50c3478e2b301cefba5b75495617174e8471de30fee680edd7a8", kill_on_drop: false }`
[INFO] [stdout] 189041392f5d50c3478e2b301cefba5b75495617174e8471de30fee680edd7a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb777e0c971bf2545e93a3656bcce209bbc1582fe4c17949a13e284ab06eec48
[INFO] running `Command { std: "docker" "start" "-a" "cb777e0c971bf2545e93a3656bcce209bbc1582fe4c17949a13e284ab06eec48", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling text_io v0.1.8
[INFO] [stdout] warning: unused import: `implementations::*`
[INFO] [stdout]   --> src/trees/basic_tree/mod.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub use implementations::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/trees/mod.rs:75:39
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn slice<L: locators::Locator<D>>(&mut self, locator: L) -> slice::Slice<D, Self, L> {
[INFO] [stdout]    |                                       ^^^^^^^^^                 ------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn slice<L: locators::Locator<D>>(&mut self, locator: L) -> slice::Slice<'_, D, Self, L> {
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/trees/basic_tree/walker.rs:282:28
[INFO] [stdout]     |
[INFO] [stdout] 282 |     pub fn detached_walker(&mut self) -> BasicWalker<D, T> {
[INFO] [stdout]     |                            ^^^^^^^^^     ----------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 282 |     pub fn detached_walker(&mut self) -> BasicWalker<'_, D, T> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/trees/splay.rs:65:25
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn basic_walker(&mut self) -> BasicWalker<D> {
[INFO] [stdout]    |                         ^^^^^^^^^     -------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn basic_walker(&mut self) -> BasicWalker<'_, D> {
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling grove v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `implementations::*`
[INFO] [stdout]   --> src/trees/basic_tree/mod.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub use implementations::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/trees/mod.rs:75:39
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn slice<L: locators::Locator<D>>(&mut self, locator: L) -> slice::Slice<D, Self, L> {
[INFO] [stdout]    |                                       ^^^^^^^^^                 ------------------------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn slice<L: locators::Locator<D>>(&mut self, locator: L) -> slice::Slice<'_, D, Self, L> {
[INFO] [stdout]    |                                                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/trees/basic_tree/walker.rs:282:28
[INFO] [stdout]     |
[INFO] [stdout] 282 |     pub fn detached_walker(&mut self) -> BasicWalker<D, T> {
[INFO] [stdout]     |                            ^^^^^^^^^     ----------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 282 |     pub fn detached_walker(&mut self) -> BasicWalker<'_, D, T> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/trees/splay.rs:65:25
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn basic_walker(&mut self) -> BasicWalker<D> {
[INFO] [stdout]    |                         ^^^^^^^^^     -------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn basic_walker(&mut self) -> BasicWalker<'_, D> {
[INFO] [stdout]    |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.20s
[INFO] running `Command { std: "docker" "inspect" "cb777e0c971bf2545e93a3656bcce209bbc1582fe4c17949a13e284ab06eec48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb777e0c971bf2545e93a3656bcce209bbc1582fe4c17949a13e284ab06eec48", kill_on_drop: false }`
[INFO] [stdout] cb777e0c971bf2545e93a3656bcce209bbc1582fe4c17949a13e284ab06eec48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 27b2bfcd916b5cf7e75ad3b7021d00ef8e324c4f76170907454ff27c3560a6db
[INFO] running `Command { std: "docker" "start" "-a" "27b2bfcd916b5cf7e75ad3b7021d00ef8e324c4f76170907454ff27c3560a6db", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `implementations::*`
[INFO] [stderr]   --> src/trees/basic_tree/mod.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub use implementations::*;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/trees/mod.rs:75:39
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn slice<L: locators::Locator<D>>(&mut self, locator: L) -> slice::Slice<D, Self, L> {
[INFO] [stderr]    |                                       ^^^^^^^^^                 ------------------------ the lifetime gets resolved as `'_`
[INFO] [stderr]    |                                       |
[INFO] [stderr]    |                                       this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 75 |     fn slice<L: locators::Locator<D>>(&mut self, locator: L) -> slice::Slice<'_, D, Self, L> {
[INFO] [stderr]    |                                                                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/trees/basic_tree/walker.rs:282:28
[INFO] [stderr]     |
[INFO] [stderr] 282 |     pub fn detached_walker(&mut self) -> BasicWalker<D, T> {
[INFO] [stderr]     |                            ^^^^^^^^^     ----------------- the lifetime gets resolved as `'_`
[INFO] [stderr]     |                            |
[INFO] [stderr]     |                            this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 282 |     pub fn detached_walker(&mut self) -> BasicWalker<'_, D, T> {
[INFO] [stderr]     |                                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/trees/splay.rs:65:25
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn basic_walker(&mut self) -> BasicWalker<D> {
[INFO] [stderr]    |                         ^^^^^^^^^     -------------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub fn basic_walker(&mut self) -> BasicWalker<'_, D> {
[INFO] [stderr]    |                                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: `grove` (lib) generated 4 warnings (run `cargo fix --lib -p grove` to apply 1 suggestion)
[INFO] [stderr] warning: `grove` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/grove-036e508a2b9d24dc)
[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] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-4c0d116146ddde98)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test splay_and_avl_consistency_noncommutative ... ok
[INFO] [stdout] test splay_and_treap_consistency_noncommutative ... ok
[INFO] [stdout] test treap_consistency_noncommutative ... ok
[INFO] [stdout] test basic_delete ... ok
[INFO] [stdout] test splay_insert ... ok
[INFO] [stdout] test splay_delete ... ok
[INFO] [stdout] test basic_insert ... ok
[INFO] [stdout] test treap_insert ... ok
[INFO] [stdout] test avl_insert ... ok
[INFO] [stdout] test treap_delete ... ok
[INFO] [stdout] test avl_delete ... ok
[INFO] [stdout] test treap_consistency ... ok
[INFO] [stdout] test splay_and_treap_consistency ... ok
[INFO] [stdout] test splay_and_avl_consistency ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.80s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests grove
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/trees/macros.rs - trees::macros::derive_SomeEntry (line 48) ... FAILED
[INFO] [stdout] test src/trees/macros.rs - trees::macros::derive_SomeWalker (line 3) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 65) ... ok
[INFO] [stdout] test src/trees/avl.rs - trees::avl::concatenate_with_middle (line 665) ... ok
[INFO] [stdout] test src/data/example_data.rs - data::example_data::poly_num::PolyNum<D>::shift (line 447) ... ok
[INFO] [stdout] test src/trees/avl.rs - trees::avl::AVLTree<D>::concatenate_middle_right (line 559) ... ok
[INFO] [stdout] test src/trees/mod.rs - trees::SomeEntry::subtree_summary (line 313) ... ok
[INFO] [stdout] test src/trees/avl.rs - trees::avl::AVLWalker<'a,D>::split_right (line 490) ... ok
[INFO] [stdout] test src/lib.rs - (line 95) ... ok
[INFO] [stdout] test src/trees/avl.rs - trees::avl::AVLWalker<'a,D>::split_left (line 538) ... ok
[INFO] [stdout] test src/trees/mod.rs - trees::SomeTree::iter_locator (line 88) ... ok
[INFO] [stdout] test src/trees/basic_tree/mod.rs - trees::basic_tree::BasicNode<D,T>::act (line 274) ... ok
[INFO] [stdout] test src/trees/mod.rs - trees::SomeTree::iter (line 104) ... ok
[INFO] [stdout] test src/trees/avl.rs - trees::avl::AVLTree<D>::concatenate_right (line 641) ... ok
[INFO] [stdout] test src/trees/avl.rs - trees::avl::AVLTree<D>::concatenate_middle_left (line 599) ... ok
[INFO] [stdout] test src/trees/splay.rs - trees::splay::SplayTree<D>::concatenate_right (line 526) ... ok
[INFO] [stdout] test src/trees/treap.rs - trees::treap::union (line 410) ... ok
[INFO] [stdout] test src/trees/treap.rs - trees::treap::Treap<D>::concatenate_right (line 439) ... ok
[INFO] [stdout] test src/trees/splay.rs - trees::splay::SplayWalker<'a,D>::split_right (line 573) ... ok
[INFO] [stdout] test src/trees/treap.rs - trees::treap::TreapWalker<'a,D>::split_right (line 494) ... ok
[INFO] [stdout] test src/trees/treap.rs - trees::treap::TreapWalker<'a,D>::split_left (line 539) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/trees/macros.rs - trees::macros::derive_SomeEntry (line 48) stdout ----
[INFO] [stdout] error: cannot find macro `derive_SomeEntry` in this scope
[INFO] [stdout]  --> src/trees/macros.rs:49:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | derive_SomeEntry!{walker,
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/trees/macros.rs - trees::macros::derive_SomeWalker (line 3) stdout ----
[INFO] [stdout] error: cannot find macro `derive_SomeWalker` in this scope
[INFO] [stdout]  --> src/trees/macros.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | derive_SomeWalker!{walker,
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/trees/macros.rs - trees::macros::derive_SomeEntry (line 48)
[INFO] [stdout]     src/trees/macros.rs - trees::macros::derive_SomeWalker (line 3)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 19 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.69s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "27b2bfcd916b5cf7e75ad3b7021d00ef8e324c4f76170907454ff27c3560a6db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27b2bfcd916b5cf7e75ad3b7021d00ef8e324c4f76170907454ff27c3560a6db", kill_on_drop: false }`
[INFO] [stdout] 27b2bfcd916b5cf7e75ad3b7021d00ef8e324c4f76170907454ff27c3560a6db
