[INFO] cloning repository https://github.com/rklaehn/vec-collections
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[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Fvec-collections'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c28f9c159ee93fa4449c7efd8db8626708ed3d05
[INFO] testing rklaehn/vec-collections against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frklaehn%2Fvec-collections" "/workspace/builds/worker-48/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-48/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rklaehn/vec-collections on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rklaehn/vec-collections
[INFO] finished tweaking git repo https://github.com/rklaehn/vec-collections
[INFO] tweaked toml for git repo https://github.com/rklaehn/vec-collections written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] crate git repo https://github.com/rklaehn/vec-collections already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck_macros v0.8.0
[INFO] [stderr]   Downloaded quickcheck v0.8.5
[INFO] [stderr]   Downloaded sorted-iter v0.1.6
[INFO] [stderr]   Downloaded stats_alloc v0.1.8
[INFO] [stderr]   Downloaded clap v2.33.2
[INFO] [stderr]   Downloaded testdrop v0.1.2
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[INFO] running `Command { std: "docker" "inspect" "bdac2e8f19f4ead3f1953047dca401eef435a3651e3deae31d20d78bf8b07a36", kill_on_drop: false }`
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[INFO] [stdout] f856f043e808a22679808abbf3f67be26172c489fb373f43d13b931e1c31ec80
[INFO] running `Command { std: "docker" "start" "-a" "f856f043e808a22679808abbf3f67be26172c489fb373f43d13b931e1c31ec80", kill_on_drop: false }`
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[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling sorted-iter v0.1.6
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling vec-collections v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `slice_iter`
[INFO] [stdout]    --> src/vec_map.rs:378:19
[INFO] [stdout]     |
[INFO] [stdout] 378 |     pub(crate) fn slice_iter(&self) -> SliceIterator<A::Item> {
[INFO] [stdout]     |                   ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.86s
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[INFO] [stdout] f856f043e808a22679808abbf3f67be26172c489fb373f43d13b931e1c31ec80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d629b47a4f560a4a879d89d8f72c652add785557301b991c6ac357032d34b64
[INFO] running `Command { std: "docker" "start" "-a" "3d629b47a4f560a4a879d89d8f72c652add785557301b991c6ac357032d34b64", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.3.3
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[INFO] [stderr]    Compiling unicode-xid v0.2.1
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[INFO] [stderr]    Compiling itoa v0.4.6
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[INFO] [stderr]    Compiling serde_derive v1.0.114
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[INFO] [stderr]    Compiling unicode-width v0.1.8
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[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling oorandom v11.1.2
[INFO] [stderr]    Compiling testdrop v0.1.2
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[INFO] [stdout] warning: associated function is never used: `slice_iter`
[INFO] [stdout]    --> src/vec_map.rs:378:19
[INFO] [stdout]     |
[INFO] [stdout] 378 |     pub(crate) fn slice_iter(&self) -> SliceIterator<A::Item> {
[INFO] [stdout]     |                   ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling clap v2.33.2
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling quickcheck v0.8.5
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling vec-collections v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> examples/multimap.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |     let x: Multimap<u32, u32> = [(0, 0), (0, 1), (1, 0)].iter().cloned().collect();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> examples/multimap.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let y: BiMultimap<u32, u32> = [(0, 0), (0, 1), (1, 0)].iter().cloned().collect();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/test_macros.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / macro_rules! bitop_sub_not_all {
[INFO] [stdout] 52 | |     ($test:ty) => {
[INFO] [stdout] 53 | |         #[quickcheck]
[INFO] [stdout] 54 | |         fn bitand_all_neutral(x: $test) -> bool {
[INFO] [stdout] ...  |
[INFO] [stdout] 93 | |     };
[INFO] [stdout] 94 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `slice_iter`
[INFO] [stdout]    --> src/vec_map.rs:378:19
[INFO] [stdout]     |
[INFO] [stdout] 378 |     pub(crate) fn slice_iter(&self) -> SliceIterator<A::Item> {
[INFO] [stdout]     |                   ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 38.14s
[INFO] running `Command { std: "docker" "inspect" "3d629b47a4f560a4a879d89d8f72c652add785557301b991c6ac357032d34b64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d629b47a4f560a4a879d89d8f72c652add785557301b991c6ac357032d34b64", kill_on_drop: false }`
[INFO] [stdout] 3d629b47a4f560a4a879d89d8f72c652add785557301b991c6ac357032d34b64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 88e0d499bfbb8dc7fe4dd458c5a9c2d4e4ccec2b2c0ff0d59deecfd09e0abad3
[INFO] running `Command { std: "docker" "start" "-a" "88e0d499bfbb8dc7fe4dd458c5a9c2d4e4ccec2b2c0ff0d59deecfd09e0abad3", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `slice_iter`
[INFO] [stdout] 
[INFO] [stderr]    --> src/vec_map.rs:378:19
[INFO] [stdout] running 46 tests
[INFO] [stderr]     |
[INFO] [stderr] 378 |     pub(crate) fn slice_iter(&self) -> SliceIterator<A::Item> {
[INFO] [stderr]     |                   ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `vec-collections` (lib) generated 1 warning
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> examples/multimap.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |     let x: Multimap<u32, u32> = [(0, 0), (0, 1), (1, 0)].iter().cloned().collect();
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `y`
[INFO] [stderr]   --> examples/multimap.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let y: BiMultimap<u32, u32> = [(0, 0), (0, 1), (1, 0)].iter().cloned().collect();
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]   --> src/test_macros.rs:51:1
[INFO] [stderr]    |
[INFO] [stderr] 51 | / macro_rules! bitop_sub_not_all {
[INFO] [stderr] 52 | |     ($test:ty) => {
[INFO] [stderr] 53 | |         #[quickcheck]
[INFO] [stderr] 54 | |         fn bitand_all_neutral(x: $test) -> bool {
[INFO] [stderr] ...  |
[INFO] [stderr] 93 | |     };
[INFO] [stderr] 94 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `vec-collections` (example "multimap") generated 2 warnings
[INFO] [stderr] warning: `vec-collections` (lib test) generated 2 warnings (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.23s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/vec_collections-c8189f2cf09b8e0f)
[INFO] [stdout] test macros::tests::vecmap_macro ... ok
[INFO] [stdout] test small_vec_builder::tests::source_drop_some ... ok
[INFO] [stdout] test small_vec_builder::tests::source_move_some ... ok
[INFO] [stdout] test small_vec_builder::tests::source_drop_all ... ok
[INFO] [stdout] test small_vec_builder::tests::source_move_all ... ok
[INFO] [stdout] test small_vec_builder::tests::drop_just_source ... ok
[INFO] [stdout] test dedup::tests::sort_and_dedup_by_test ... ok
[INFO] [stdout] test small_vec_builder::tests::source_pop_some ... ok
[INFO] [stdout] test macros::tests::vecset_macro ... ok
[INFO] [stdout] test small_vec_builder::tests::target_push_gap ... ok
[INFO] [stdout] test dedup::tests::dsort_and_dedup_by_check ... ok
[INFO] [stdout] test dedup::tests::sort_and_dedup_check ... ok
[INFO] [stdout] test vec_map::tests::smoke_test ... ok
[INFO] [stdout] test vec_set::test::bitor_assign_consistent ... ok
[INFO] [stdout] test vec_set::test::bitxor_empty_neutral ... ok
[INFO] [stdout] test vec_set::test::bitand_empty_neutral ... ok
[INFO] [stdout] test vec_set::test::bitxor_assign_consistent ... ok
[INFO] [stdout] test vec_map::tests::inner_join ... ok
[INFO] [stdout] test vec_set::test::bitor_empty_neutral ... ok
[INFO] [stdout] test vec_set::test::drop_pointer_being_freed_was_not_allocated ... ok
[INFO] [stdout] test vec_set::test::bitand_symmetric ... ok
[INFO] [stdout] test vec_set::test::bitxor_symmetric ... ok
[INFO] [stdout] test vec_map::tests::serde_roundtrip ... ok
[INFO] [stdout] test vec_set::test::empty_is_empty_consistent ... ok
[INFO] [stdout] test vec_set::test::difference ... ok
[INFO] [stdout] test vec_set::test::is_subset_bitand_consistent ... ok
[INFO] [stdout] test vec_set::test::is_subset_is_superset_consistent ... ok
[INFO] [stdout] test vec_set::test::contains ... ok
[INFO] [stdout] test vec_set::test::bitor_symmetric ... ok
[INFO] [stdout] test vec_set::test::is_disjoint ... ok
[INFO] [stdout] test vec_set::test::intersection_sample ... ok
[INFO] [stdout] test vec_set::test::serde_roundtrip ... ok
[INFO] [stdout] test vec_set::test::is_disjoint_sample ... ok
[INFO] [stdout] test vec_set::test::intersection ... ok
[INFO] [stdout] test vec_set::test::sub_empty_neutral ... ok
[INFO] [stdout] test vec_set::test::diff_sample ... ok
[INFO] [stdout] test vec_set::test::sub_assign_consistent ... ok
[INFO] [stdout] test vec_set::test::is_subset_sample ... ok
[INFO] [stdout] test vec_map::tests::outer_join ... ok
[INFO] [stdout] test vec_set::test::bitand_assign_consistent ... ok
[INFO] [stdout] test vec_set::test::is_disjoint_bitand_consistent ... ok
[INFO] [stdout] test vec_set::test::is_subset ... ok
[INFO] [stdout] test vec_set::test::xor ... ok
[INFO] [stdout] test vec_set::test::union ... ok
[INFO] [stdout] test vec_set::test::union_sample ... ok
[INFO] [stderr]    Doc-tests vec-collections
[INFO] [stdout] test vec_set::test::xor_sample ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 46 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.62s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/vec_set.rs - vec_set::VecSet (line 76) ... ok
[INFO] [stdout] test src/vec_set.rs - vec_set::VecSet (line 89) ... ok
[INFO] [stdout] test src/vec_set.rs - vec_set::VecSet (line 66) ... ok
[INFO] [stdout] test src/vec_set.rs - vec_set::VecSet (line 60) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.93s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "88e0d499bfbb8dc7fe4dd458c5a9c2d4e4ccec2b2c0ff0d59deecfd09e0abad3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88e0d499bfbb8dc7fe4dd458c5a9c2d4e4ccec2b2c0ff0d59deecfd09e0abad3", kill_on_drop: false }`
[INFO] [stdout] 88e0d499bfbb8dc7fe4dd458c5a9c2d4e4ccec2b2c0ff0d59deecfd09e0abad3