[INFO] fetching crate disjoint 0.8.0...
[INFO] testing disjoint-0.8.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate disjoint 0.8.0 into /workspace/builds/worker-0-tc1/source
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate disjoint 0.8.0
[INFO] finished tweaking crates.io crate disjoint 0.8.0
[INFO] tweaked toml for crates.io crate disjoint 0.8.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate disjoint 0.8.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e194b93842753dd32af88150cb58d45d7d5a5f94feeab43e439209a900eab635
[INFO] running `Command { std: "docker" "start" "-a" "e194b93842753dd32af88150cb58d45d7d5a5f94feeab43e439209a900eab635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e194b93842753dd32af88150cb58d45d7d5a5f94feeab43e439209a900eab635", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e194b93842753dd32af88150cb58d45d7d5a5f94feeab43e439209a900eab635", kill_on_drop: false }`
[INFO] [stdout] e194b93842753dd32af88150cb58d45d7d5a5f94feeab43e439209a900eab635
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed80cf2dc902a94c96b4f5ee3f85bf309bf59b2d2e577bc4bedef82bab7fecfe
[INFO] running `Command { std: "docker" "start" "-a" "ed80cf2dc902a94c96b4f5ee3f85bf309bf59b2d2e577bc4bedef82bab7fecfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling disjoint v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/disjoint_set.rs:418:5
[INFO] [stdout]     |
[INFO] [stdout] 418 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]   --> src/disjoint_set_vec.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]   --> src/disjoint_set_vec.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/disjoint_set_vec.rs:338:5
[INFO] [stdout]     |
[INFO] [stdout] 338 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/disjoint_set_vec.rs:349:5
[INFO] [stdout]     |
[INFO] [stdout] 349 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/disjoint_set_vec.rs:360:5
[INFO] [stdout]     |
[INFO] [stdout] 360 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "ed80cf2dc902a94c96b4f5ee3f85bf309bf59b2d2e577bc4bedef82bab7fecfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed80cf2dc902a94c96b4f5ee3f85bf309bf59b2d2e577bc4bedef82bab7fecfe", kill_on_drop: false }`
[INFO] [stdout] ed80cf2dc902a94c96b4f5ee3f85bf309bf59b2d2e577bc4bedef82bab7fecfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccadadf755212b98447a3a8988bf678929395537a830c3f2a34811ea86af2c3f
[INFO] running `Command { std: "docker" "start" "-a" "ccadadf755212b98447a3a8988bf678929395537a830c3f2a34811ea86af2c3f", kill_on_drop: false }`
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/disjoint_set.rs:418:5
[INFO] [stdout]     |
[INFO] [stdout] 418 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]   --> src/disjoint_set_vec.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]   --> src/disjoint_set_vec.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/disjoint_set_vec.rs:338:5
[INFO] [stdout]     |
[INFO] [stdout] 338 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/disjoint_set_vec.rs:349:5
[INFO] [stdout]     |
[INFO] [stdout] 349 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/disjoint_set_vec.rs:360:5
[INFO] [stdout]     |
[INFO] [stdout] 360 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling disjoint v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/disjoint_set.rs:418:5
[INFO] [stdout]     |
[INFO] [stdout] 418 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]   --> src/disjoint_set_vec.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]   --> src/disjoint_set_vec.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/disjoint_set_vec.rs:338:5
[INFO] [stdout]     |
[INFO] [stdout] 338 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/disjoint_set_vec.rs:349:5
[INFO] [stdout]     |
[INFO] [stdout] 349 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/disjoint_set_vec.rs:360:5
[INFO] [stdout]     |
[INFO] [stdout] 360 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "ccadadf755212b98447a3a8988bf678929395537a830c3f2a34811ea86af2c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccadadf755212b98447a3a8988bf678929395537a830c3f2a34811ea86af2c3f", kill_on_drop: false }`
[INFO] [stdout] ccadadf755212b98447a3a8988bf678929395537a830c3f2a34811ea86af2c3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a2e21ac1ba02f333a074060be238a84363fcc274ea8ea3ca00e2a0ed53e81414
[INFO] running `Command { std: "docker" "start" "-a" "a2e21ac1ba02f333a074060be238a84363fcc274ea8ea3ca00e2a0ed53e81414", kill_on_drop: false }`
[INFO] [stderr] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stderr]    --> src/disjoint_set.rs:418:5
[INFO] [stderr]     |
[INFO] [stderr] 418 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stderr]   --> src/disjoint_set_vec.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     #[must_use]
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stderr]   --> src/disjoint_set_vec.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     #[must_use]
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stderr]    --> src/disjoint_set_vec.rs:338:5
[INFO] [stderr]     |
[INFO] [stderr] 338 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stderr]    --> src/disjoint_set_vec.rs:349:5
[INFO] [stderr]     |
[INFO] [stderr] 349 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stderr]    --> src/disjoint_set_vec.rs:360:5
[INFO] [stderr]     |
[INFO] [stderr] 360 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `disjoint` (lib) generated 6 warnings
[INFO] [stderr] warning: `disjoint` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/disjoint-8c0d4119b704c576)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test disjoint_set::test::clear_removes_elements_without_removing_capacity ... ok
[INFO] [stderr]      Running tests/disjoint_set.rs (/opt/rustwide/target/debug/deps/disjoint_set-5d2b49ae31d8877f)
[INFO] [stdout] test disjoint_set::test::join_returns_false_even_if_immediate_parent_check_fails ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stdout] test arbitrary_sequence_of_join_and_is_joined ... ok
[INFO] [stdout] test can_join_elements_added_later ... ok
[INFO] [stdout] test clear_removes_elements ... ok
[INFO] [stdout] test construct_with_capacity ... ok
[INFO] [stdout] test different_joining_order_equal ... ok
[INFO] [stdout] test constructor_constructs_correct_len_and_if_empty ... ok
[INFO] [stdout] test different_len_not_equal ... ok
[INFO] [stdout] test different_ways_of_empty_construction ... ok
[INFO] [stdout] test get_sets_all_in_one ... ok
[INFO] [stdout] test get_sets_empty ... ok
[INFO] [stdout] test join_element_with_itself ... ok
[INFO] [stdout] test join_one_pair_and_reversed ... ok
[INFO] [stdout] test join_one_pair_twice ... ok
[INFO] [stdout] test join_two_non_trivial_subsets ... ok
[INFO] [stdout] test join_two_pairs_non_overlapping ... ok
[INFO] [stdout] test join_one_pair ... ok
[INFO] [stdout] test joining_and_is_joined_dont_change_len ... ok
[INFO] [stdout] test constructor_prodcues_singletons ... ok
[INFO] [stdout] test get_sets_complex ... ok
[INFO] [stdout] test same_len_not_equal ... ok
[INFO] [stdout] test get_sets_singletons ... ok
[INFO] [stdout] test root_of_works ... ok
[INFO] [stdout] test join_two_pairs_overlapping ... ok
[INFO] [stdout] test clone_clones - should panic ... ok
[INFO] [stdout] test panic_is_joined_both_elements_oob - should panic ... ok
[INFO] [stdout] test panic_is_joined_first_element_oob - should panic ... ok
[INFO] [stdout] test panic_is_joined_second_element_oob - should panic ... ok
[INFO] [stdout] test panic_join_both_elements_oob - should panic ... ok
[INFO] [stdout] test panic_join_first_element_oob - should panic ... ok
[INFO] [stdout] test with_capacity_panics - should panic ... ok
[INFO] [stdout] test panic_join_second_element_oob - should panic ... ok
[INFO] [stdout] test add_singleton_produces_singleton ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/disjoint_set_vec.rs (/opt/rustwide/target/debug/deps/disjoint_set_vec-9a097e28ef3bd0a3)
[INFO] [stdout] 
[INFO] [stdout] running 49 tests
[INFO] [stdout] test construct_with_capacity ... ok
[INFO] [stdout] test arbitrary_sequence_of_join_and_is_joined ... ok
[INFO] [stdout] test can_join_elements_added_later ... ok
[INFO] [stdout] test constructor_prodcues_singletons ... ok
[INFO] [stdout] test constructor_constructs_correct_len_and_if_empty ... ok
[INFO] [stdout] test different_joining_order_equal ... ok
[INFO] [stdout] test different_len_not_equal ... ok
[INFO] [stdout] test different_ways_of_empty_construction ... ok
[INFO] [stdout] test disjoint_set_vec_macro_is_not_trivial ... ok
[INFO] [stdout] test disjoint_set_vec_macro_clones ... ok
[INFO] [stdout] test disjoint_set_vec_macro_corresponds_to_vec_macro ... ok
[INFO] [stdout] test disjoint_set_vec_macro_is_consistent ... ok
[INFO] [stdout] test get_works_in_all_circumstances ... ok
[INFO] [stdout] test indices_sets_all_in_one ... ok
[INFO] [stdout] test indices_sets_empty ... ok
[INFO] [stdout] test indices_sets_singletons ... ok
[INFO] [stdout] test iter_mut_works ... ok
[INFO] [stdout] test iter_works ... ok
[INFO] [stdout] test join_one_pair_and_reversed ... ok
[INFO] [stdout] test join_two_non_trivial_subsets ... ok
[INFO] [stdout] test join_two_pairs_non_overlapping ... ok
[INFO] [stdout] test join_one_pair_twice ... ok
[INFO] [stdout] test joining_and_is_joined_dont_change_len ... ok
[INFO] [stdout] test join_two_pairs_overlapping ... ok
[INFO] [stdout] test mut_ref_into_iter_works ... ok
[INFO] [stdout] test mutable_indexing_works ... ok
[INFO] [stdout] test join_element_with_itself ... ok
[INFO] [stdout] test indices_as_expected ... ok
[INFO] [stdout] test push_produces_singleton ... ok
[INFO] [stdout] test ref_into_iter_works ... ok
[INFO] [stdout] test root_of_works ... ok
[INFO] [stdout] test same_ds_not_equal ... ok
[INFO] [stdout] test same_vec_not_equal ... ok
[INFO] [stdout] test values_as_expected ... ok
[INFO] [stdout] test from_vec_constructor ... ok
[INFO] [stdout] test from_slice_constructor ... ok
[INFO] [stdout] test clone_clones - should panic ... ok
[INFO] [stdout] test indexing_panics - should panic ... ok
[INFO] [stdout] test mutable_indexing_panics - should panic ... ok
[INFO] [stdout] test panic_is_joined_both_elements_oob - should panic ... ok
[INFO] [stdout] test panic_is_joined_second_element_oob - should panic ... ok
[INFO] [stdout] test panic_is_joined_first_element_oob - should panic ... ok
[INFO] [stderr]    Doc-tests disjoint
[INFO] [stdout] test indexing_works ... ok
[INFO] [stdout] test indices_sets_complex ... ok
[INFO] [stdout] test join_one_pair ... ok
[INFO] [stdout] test panic_join_both_elements_oob - should panic ... ok
[INFO] [stdout] test panic_join_first_element_oob - should panic ... ok
[INFO] [stdout] test panic_join_second_element_oob - should panic ... ok
[INFO] [stdout] test into_iter_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 49 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test src/disjoint_set.rs - disjoint_set::DisjointSet::join (line 221) ... ok
[INFO] [stdout] test src/disjoint_set.rs - disjoint_set::DisjointSet::root_of (line 80) ... ok
[INFO] [stdout] test src/disjoint_set.rs - disjoint_set::DisjointSet::add_singleton (line 195) ... ok
[INFO] [stdout] test src/disjoint_set.rs - disjoint_set::DisjointSet::is_joined (line 280) ... ok
[INFO] [stdout] test src/disjoint_set_vec.rs - disjoint_set_vec::DisjointSetVec<T>::is_joined (line 275) ... ok
[INFO] [stdout] test src/disjoint_set_vec.rs - disjoint_set_vec::DisjointSetVec (line 20) ... ok
[INFO] [stdout] test src/disjoint_set.rs - disjoint_set::DisjointSet::is_empty (line 327) ... ok
[INFO] [stdout] test src/disjoint_set.rs - disjoint_set::DisjointSet::new (line 346) ... ok
[INFO] [stdout] test src/disjoint_set.rs - disjoint_set::DisjointSet::with_capacity (line 161) ... ok
[INFO] [stdout] test src/disjoint_set.rs - disjoint_set::DisjointSet (line 16) ... ok
[INFO] [stdout] test src/disjoint_set.rs - disjoint_set::DisjointSet::with_len (line 124) ... ok
[INFO] [stdout] test src/disjoint_set_vec.rs - disjoint_set_vec::DisjointSetVec<T>::clear (line 188) ... ok
[INFO] [stdout] test src/disjoint_set.rs - disjoint_set::DisjointSet::clear (line 367) ... ok
[INFO] [stdout] test src/lib.rs - (line 69) ... ok
[INFO] [stdout] test src/disjoint_set_vec.rs - disjoint_set_vec::DisjointSetVec<T>::indices (line 103) ... ok
[INFO] [stdout] test src/disjoint_set.rs - disjoint_set::DisjointSet::sets (line 390) ... ok
[INFO] [stdout] test src/disjoint_set.rs - disjoint_set::DisjointSet::len (line 308) ... ok
[INFO] [stdout] test src/disjoint_set_vec.rs - disjoint_set_vec::DisjointSetVec<T>::new (line 166) ... ok
[INFO] [stdout] test src/lib.rs - (line 117) ... ok
[INFO] [stdout] test src/disjoint_set_vec.rs - disjoint_set_vec::DisjointSetVec<T>::join (line 309) ... ok
[INFO] [stdout] test src/disjoint_set_vec.rs - disjoint_set_vec::DisjointSetVec<T>::push (line 215) ... ok
[INFO] [stdout] test src/disjoint_set_vec.rs - disjoint_set_vec::DisjointSetVec<T>::with_capacity (line 135) ... ok
[INFO] [stdout] test src/lib.rs - (line 85) ... ok
[INFO] [stdout] test src/disjoint_set_vec.rs - disjoint_set_vec::DisjointSetVec<T>::root_of (line 242) ... ok
[INFO] [stdout] test src/macros.rs - macros::disjoint_set_vec (line 19) ... ok
[INFO] [stdout] test src/macros.rs - macros::disjoint_set_vec (line 8) ... ok
[INFO] [stdout] test src/disjoint_set_vec.rs - disjoint_set_vec::DisjointSetVec<T>::values (line 78) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a2e21ac1ba02f333a074060be238a84363fcc274ea8ea3ca00e2a0ed53e81414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2e21ac1ba02f333a074060be238a84363fcc274ea8ea3ca00e2a0ed53e81414", kill_on_drop: false }`
[INFO] [stdout] a2e21ac1ba02f333a074060be238a84363fcc274ea8ea3ca00e2a0ed53e81414