[INFO] fetching crate sdset 0.4.0...
[INFO] testing sdset-0.4.0 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate sdset 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate sdset 0.4.0
[INFO] finished tweaking crates.io crate sdset 0.4.0
[INFO] tweaked toml for crates.io crate sdset 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sdset 0.4.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 33 packages to highest compatible versions
[INFO] [stderr]       Adding quickcheck v0.6.2 (available: v1.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quick-error v1.2.3
[INFO] [stderr]   Downloaded humantime v1.3.0
[INFO] [stderr]   Downloaded env_logger v0.5.13
[INFO] [stderr]   Downloaded atty v0.2.14
[INFO] [stderr]   Downloaded quickcheck v0.6.2
[INFO] [stderr]   Downloaded hermit-abi v0.1.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047
[INFO] running `Command { std: "docker" "start" "c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling sdset v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/set.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |     pub fn iter(&self) -> std::slice::Iter<T> {
[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] 245 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/set.rs:415:17
[INFO] [stdout]     |
[INFO] [stdout] 415 |     pub fn iter(&self) -> std::slice::Iter<T> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 415 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.190
[INFO] [stderr]    Compiling memchr v2.8.3
[INFO] [stderr]    Compiling regex-syntax v0.8.11
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling log v0.4.34
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/set.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |     pub fn iter(&self) -> std::slice::Iter<T> {
[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] 245 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/set.rs:415:17
[INFO] [stdout]     |
[INFO] [stdout] 415 |     pub fn iter(&self) -> std::slice::Iter<T> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 415 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling aho-corasick v1.1.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling regex-automata v0.4.18
[INFO] [stderr]    Compiling regex v1.13.1
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling quickcheck v0.6.2
[INFO] [stderr]    Compiling sdset v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/set.rs:245:17
[INFO] [stdout]     |
[INFO] [stdout] 245 |     pub fn iter(&self) -> std::slice::Iter<T> {
[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] 245 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/set.rs:415:17
[INFO] [stdout]     |
[INFO] [stdout] 415 |     pub fn iter(&self) -> std::slice::Iter<T> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 415 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.50s
[INFO] running `Command { std: "docker" "inspect" "c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/set.rs:245:17
[INFO] [stderr]     |
[INFO] [stderr] 245 |     pub fn iter(&self) -> std::slice::Iter<T> {
[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] 245 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stderr]     |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/set.rs:415:17
[INFO] [stderr]     |
[INFO] [stderr] 415 |     pub fn iter(&self) -> std::slice::Iter<T> {
[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] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 415 |     pub fn iter(&self) -> std::slice::Iter<'_, T> {
[INFO] [stderr]     |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: `sdset` (lib) generated 2 warnings (run `cargo fix --lib -p sdset` to apply 2 suggestions)
[INFO] [stderr] warning: `sdset` (lib test) generated 2 warnings (2 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/sdset-880a7a8fbe215e6b)
[INFO] [stdout] 
[INFO] [stdout] running 45 tests
[INFO] [stdout] test duo::union::tests::union_two_slices_easy ... ok
[INFO] [stdout] test duo::union::tests::union_two_slices_same_elem ... ok
[INFO] [stdout] test duo::union::tests::union_two_slices_second_empty ... ok
[INFO] [stdout] test duo::difference_by_key::tests::difference_empty_duplicate_relations ... ok
[INFO] [stdout] test multi::difference::tests::no_slice ... ok
[INFO] [stdout] test duo::difference_by_key::tests::difference_non_empty_duplicate_relations ... ok
[INFO] [stdout] test multi::difference::tests::one_empty_slice ... ok
[INFO] [stdout] test multi::difference::tests::three_slices ... ok
[INFO] [stdout] test multi::difference::tests::two_slices ... ok
[INFO] [stdout] test multi::difference_by_key::tests::one_empty_slice ... ok
[INFO] [stdout] test multi::difference_by_key::tests::one_slice ... ok
[INFO] [stdout] test multi::difference::tests::two_slices_special_case ... ok
[INFO] [stdout] test multi::difference_by_key::tests::three_slices ... ok
[INFO] [stdout] test multi::difference_by_key::tests::two_slices_special_case ... ok
[INFO] [stdout] test multi::intersection::tests::no_slice ... ok
[INFO] [stdout] test multi::intersection::tests::one_empty_slice ... ok
[INFO] [stdout] test multi::intersection::tests::one_slice ... ok
[INFO] [stdout] test duo::difference::tests::two_slices ... ok
[INFO] [stdout] test multi::intersection::tests::two_slices ... ok
[INFO] [stdout] test multi::intersection::tests::three_slices ... ok
[INFO] [stdout] test multi::union::tests::no_slice ... ok
[INFO] [stdout] test duo::difference::tests::two_slices_special_case ... ok
[INFO] [stdout] test multi::union::tests::one_slice ... ok
[INFO] [stdout] test multi::union::tests::one_empty_slice ... ok
[INFO] [stdout] test multi::union::tests::three_slices ... ok
[INFO] [stdout] test multi::union::tests::two_slices ... ok
[INFO] [stdout] test duo::intersection::tests::two_slices ... ok
[INFO] [stdout] test multi::union::tests::two_slices_equal ... ok
[INFO] [stdout] test multi::union::tests::two_slices_little ... ok
[INFO] [stdout] test duo::difference_by_key::tests::difference_empty_no_duplicates ... ok
[INFO] [stdout] test duo::intersection::tests::qc_intersection ... ok
[INFO] [stdout] test set::tests::cow_set_setbuf ... ok
[INFO] [stdout] test set::tests::range_set ... ok
[INFO] [stdout] test multi::difference::tests::one_slice ... ok
[INFO] [stdout] test multi::difference_by_key::tests::two_slices ... ok
[INFO] [stdout] test duo::union::tests::union_two_slices_first_empty ... ok
[INFO] [stdout] test duo::difference::tests::qc_difference ... ok
[INFO] [stdout] test duo::symmetric_difference::tests::qc_symmetric_difference ... ok
[INFO] [stdout] test duo::difference_by_key::tests::qc_difference ... ok
[INFO] [stdout] test duo::union::tests::qc_union ... ok
[INFO] [stdout] test multi::intersection::tests::qc_intersection ... ok
[INFO] [stdout] test multi::difference_by_key::tests::qc_difference ... ok
[INFO] [stdout] test multi::difference::tests::qc_difference ... ok
[INFO] [stdout] test multi::symmetric_difference::tests::qc_symmetric_difference ... ok
[INFO] [stdout] test multi::union::tests::qc_union ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 45 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.75s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sdset
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test src/lib.rs - exponential_search_by_key (line 164) ... ok
[INFO] [stdout] test src/duo/symmetric_difference.rs - duo::symmetric_difference::SymmetricDifference (line 8) ... ok
[INFO] [stdout] test src/duo/difference_by_key.rs - duo::difference_by_key::DifferenceByKey (line 7) ... ok
[INFO] [stdout] test src/duo/intersection.rs - duo::intersection::Intersection (line 8) ... ok
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] test src/multi/intersection.rs - multi::intersection::Intersection (line 12) ... ok
[INFO] [stdout] test src/lib.rs - exponential_search_by (line 117) ... ok
[INFO] [stdout] test src/lib.rs - exponential_search (line 83) ... ok
[INFO] [stdout] test src/multi/mod.rs - multi (line 4) ... ok
[INFO] [stdout] test src/multi/difference.rs - multi::difference::Difference (line 11) ... ok
[INFO] [stdout] test src/multi/difference_by_key.rs - multi::difference_by_key::DifferenceByKey (line 9) ... ok
[INFO] [stdout] test src/duo/union.rs - duo::union::Union (line 8) ... ok
[INFO] [stdout] test src/lib.rs - (line 14) ... ok
[INFO] [stdout] test src/multi/symmetric_difference.rs - multi::symmetric_difference::SymmetricDifference (line 8) ... ok
[INFO] [stdout] test src/set.rs - set::SetBuf<T>::into_vec (line 385) ... ok
[INFO] [stdout] test src/set.rs - set::SetBuf<T>::iter (line 403) ... ok
[INFO] [stdout] test src/duo/mod.rs - duo (line 4) ... ok
[INFO] [stdout] test src/collection.rs - collection::Counter (line 80) ... ok
[INFO] [stdout] test src/set.rs - set::Set<T>::contains (line 177) ... ok
[INFO] [stdout] test src/set.rs - set::Set<T>::iter (line 233) ... ok
[INFO] [stdout] test src/set.rs - set::Set<T>::as_slice (line 215) ... ok
[INFO] [stdout] test src/set.rs - set::Set<T>::new (line 26) ... ok
[INFO] [stdout] test src/multi/union.rs - multi::union::Union (line 8) ... ok
[INFO] [stdout] test src/duo/difference.rs - duo::difference::Difference (line 7) ... ok
[INFO] [stdout] test src/set.rs - set::Set<T>::new_unchecked (line 50) ... ok
[INFO] [stdout] test src/set.rs - set::SetBuf<T>::from_dirty (line 326) ... ok
[INFO] [stdout] test src/set.rs - set::Set<T>::to_set_buf (line 197) ... ok
[INFO] [stdout] test src/set.rs - set::SetBuf<T>::new (line 301) ... ok
[INFO] [stdout] test src/set.rs - set::SetBuf<T>::new_unchecked (line 347) ... ok
[INFO] [stdout] test src/set.rs - set::SetBuf<T>::as_set (line 366) ... ok
[INFO] [stdout] test src/set.rs - set::vec_slices_into_sets_unchecked (line 553) ... ok
[INFO] [stdout] test src/set.rs - set::Set<T>::range (line 72) ... ok
[INFO] [stdout] test src/set.rs - set::vec_slices_into_sets (line 522) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047", kill_on_drop: false }`
[INFO] [stdout] c13f368253704d4e7e8e705ced8d80156596cb56e950f776b840cb65e3058047
