[INFO] fetching crate gcollections 1.6.0...
[INFO] linting gcollections-1.6.0 against nightly for clippy-nonminimal_bool-denied
[INFO] extracting crate gcollections 1.6.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate gcollections 1.6.0
[INFO] finished tweaking crates.io crate gcollections 1.6.0
[INFO] tweaked toml for crates.io crate gcollections 1.6.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate gcollections 1.6.0 on toolchain nightly
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gcollections 1.6.0 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" "+nightly" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trilean v1.1.0
[INFO] [stderr]   Downloaded bit-set v0.9.1
[INFO] [stderr]   Downloaded bit-vec v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+nightly" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fec2b5f4e8e8871df6fce430f31be3c80739aeae195415f068cbdda07d2ee00
[INFO] running `Command { std: "docker" "start" "-a" "2fec2b5f4e8e8871df6fce430f31be3c80739aeae195415f068cbdda07d2ee00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fec2b5f4e8e8871df6fce430f31be3c80739aeae195415f068cbdda07d2ee00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fec2b5f4e8e8871df6fce430f31be3c80739aeae195415f068cbdda07d2ee00", kill_on_drop: false }`
[INFO] [stdout] 2fec2b5f4e8e8871df6fce430f31be3c80739aeae195415f068cbdda07d2ee00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+nightly" "clippy" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91d7cb2725beb9a511907404a378b02c7ca3401dac496beb346fd74adc2b70fd
[INFO] running `Command { std: "docker" "start" "-a" "91d7cb2725beb9a511907404a378b02c7ca3401dac496beb346fd74adc2b70fd", kill_on_drop: false }`
[INFO] [stderr]     Checking bit-vec v0.9.1
[INFO] [stderr]     Checking trilean v1.1.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking bit-set v0.9.1
[INFO] [stderr]     Checking gcollections v1.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: empty line after doc comment
[INFO] [stdout]   --> src/libgcollections/ops/cardinality.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | / /// For an explanation on the macros, see `lib.rs`.
[INFO] [stdout] 29 | |
[INFO] [stdout]    | |_^
[INFO] [stdout] 30 |   macro_rules! is_singleton_impl
[INFO] [stdout]    |   ------------------------------ the comment documents this macro definition
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#empty_line_after_doc_comments
[INFO] [stdout]    = note: `#[warn(clippy::empty_line_after_doc_comments)]` on by default
[INFO] [stdout]    = help: if the empty line is unintentional, remove it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: empty line after doc comment
[INFO] [stdout]   --> src/libgcollections/ops/lattice.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / /// This is the reason why we do not require `Lattice` to inherit from `Collection`.
[INFO] [stdout] 12 | |
[INFO] [stdout]    | |_^
[INFO] [stdout] 13 |   use trilean::SKleene;
[INFO] [stdout]    |   - the comment documents this `use` import
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#empty_line_after_doc_comments
[INFO] [stdout]    = help: if the empty line is unintentional, remove it
[INFO] [stdout] help: if the comment should document the parent module use an inner doc comment
[INFO] [stdout]    |
[INFO] [stdout]  9 ~ //! A [lattice](https://en.wikipedia.org/wiki/Lattice_(order)) is an ordered set where every pair of elements can be combined with a `join` and `meet` operations.
[INFO] [stdout] 10 ~ //! The following traits operate on an element of the lattice, and do not represent a set of elements (which would be the whole lattice).
[INFO] [stdout] 11 ~ //! This is the reason why we do not require `Lattice` to inherit from `Collection`.
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         test_id: test_id,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: replace it with: `test_id`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]     = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         data_a: data_a,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: replace it with: `data_a`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         data_b: data_b,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: replace it with: `data_b`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         expected_entailment: expected_entailment,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `expected_entailment`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         expected_join: expected_join,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `expected_join`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         expected_meet: expected_meet
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `expected_meet`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/wrappers/bit_set.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     BitSet{bs: bs}
[INFO] [stdout]    |            ^^^^^^ help: replace it with: `bs`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/wrappers/btree_set.rs:22:14
[INFO] [stdout]    |
[INFO] [stdout] 22 |     BTreeSet{ts: ts}
[INFO] [stdout]    |              ^^^^^^ help: replace it with: `ts`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/wrappers/hash_set.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |     HashSet{hs: hs}
[INFO] [stdout]    |             ^^^^^^ help: replace it with: `hs`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/wrappers/optional.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 |       value: value
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: replace it with: `value`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/wrappers/vector.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |       vec: vec
[INFO] [stdout]    |       ^^^^^^^^ help: replace it with: `vec`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/wrappers/vector_deque.rs:33:7
[INFO] [stdout]    |
[INFO] [stdout] 33 |       deque: deque
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: replace it with: `deque`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/queue.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |       seq: seq,
[INFO] [stdout]    |       ^^^^^^^^ help: replace it with: `seq`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/stack.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 |       seq: seq,
[INFO] [stdout]    |       ^^^^^^^^ help: replace it with: `seq`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: empty line after doc comment
[INFO] [stdout]   --> src/libgcollections/ops/cardinality.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | / /// For an explanation on the macros, see `lib.rs`.
[INFO] [stdout] 29 | |
[INFO] [stdout]    | |_^
[INFO] [stdout] 30 |   macro_rules! is_singleton_impl
[INFO] [stdout]    |   ------------------------------ the comment documents this macro definition
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#empty_line_after_doc_comments
[INFO] [stdout]    = note: `#[warn(clippy::empty_line_after_doc_comments)]` on by default
[INFO] [stdout]    = help: if the empty line is unintentional, remove it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: empty line after doc comment
[INFO] [stdout]   --> src/libgcollections/ops/lattice.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | / /// This is the reason why we do not require `Lattice` to inherit from `Collection`.
[INFO] [stdout] 12 | |
[INFO] [stdout]    | |_^
[INFO] [stdout] 13 |   use trilean::SKleene;
[INFO] [stdout]    |   - the comment documents this `use` import
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#empty_line_after_doc_comments
[INFO] [stdout]    = help: if the empty line is unintentional, remove it
[INFO] [stdout] help: if the comment should document the parent module use an inner doc comment
[INFO] [stdout]    |
[INFO] [stdout]  9 ~ //! A [lattice](https://en.wikipedia.org/wiki/Lattice_(order)) is an ordered set where every pair of elements can be combined with a `join` and `meet` operations.
[INFO] [stdout] 10 ~ //! The following traits operate on an element of the lattice, and do not represent a set of elements (which would be the whole lattice).
[INFO] [stdout] 11 ~ //! This is the reason why we do not require `Lattice` to inherit from `Collection`.
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         test_id: test_id,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: replace it with: `test_id`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout]     = note: `#[warn(clippy::redundant_field_names)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         data_a: data_a,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: replace it with: `data_a`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         data_b: data_b,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ help: replace it with: `data_b`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         expected_entailment: expected_entailment,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `expected_entailment`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         expected_join: expected_join,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `expected_join`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:120:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |         expected_meet: expected_meet
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `expected_meet`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/wrappers/bit_set.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     BitSet{bs: bs}
[INFO] [stdout]    |            ^^^^^^ help: replace it with: `bs`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/wrappers/btree_set.rs:22:14
[INFO] [stdout]    |
[INFO] [stdout] 22 |     BTreeSet{ts: ts}
[INFO] [stdout]    |              ^^^^^^ help: replace it with: `ts`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/wrappers/hash_set.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |     HashSet{hs: hs}
[INFO] [stdout]    |             ^^^^^^ help: replace it with: `hs`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/wrappers/optional.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 |       value: value
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: replace it with: `value`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/wrappers/vector.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |       vec: vec
[INFO] [stdout]    |       ^^^^^^^^ help: replace it with: `vec`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/wrappers/vector_deque.rs:33:7
[INFO] [stdout]    |
[INFO] [stdout] 33 |       deque: deque
[INFO] [stdout]    |       ^^^^^^^^^^^^ help: replace it with: `deque`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/queue.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |       seq: seq,
[INFO] [stdout]    |       ^^^^^^^^ help: replace it with: `seq`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: redundant field names in struct initialization
[INFO] [stdout]   --> src/libgcollections/stack.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 |       seq: seq,
[INFO] [stdout]    |       ^^^^^^^^ help: replace it with: `seq`
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `SKleene` which implements the `Copy` trait
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:159:43
[INFO] [stdout]     |
[INFO] [stdout] 159 |       self.assert_expected("a.entail(b)", ab.clone(), expected, "");
[INFO] [stdout]     |                                           ^^^^^^^^^^ help: try removing the `clone` call: `ab`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]     = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/bit_set.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |   fn deref<'a>(&'a self) -> &'a StdBitSet {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout]    = note: `#[warn(clippy::needless_lifetimes)]` on by default
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 35 -   fn deref<'a>(&'a self) -> &'a StdBitSet {
[INFO] [stdout] 35 +   fn deref(&self) -> &StdBitSet {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/bit_set.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |   fn deref_mut<'a>(&'a mut self) -> &'a mut StdBitSet {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 42 -   fn deref_mut<'a>(&'a mut self) -> &'a mut StdBitSet {
[INFO] [stdout] 42 +   fn deref_mut(&mut self) -> &mut StdBitSet {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/btree_set.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |   fn deref<'a>(&'a self) -> &'a StdBTreeSet<T> {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 34 -   fn deref<'a>(&'a self) -> &'a StdBTreeSet<T> {
[INFO] [stdout] 34 +   fn deref(&self) -> &StdBTreeSet<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/btree_set.rs:41:16
[INFO] [stdout]    |
[INFO] [stdout] 41 |   fn deref_mut<'a>(&'a mut self) -> &'a mut StdBTreeSet<T> {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 41 -   fn deref_mut<'a>(&'a mut self) -> &'a mut StdBTreeSet<T> {
[INFO] [stdout] 41 +   fn deref_mut(&mut self) -> &mut StdBTreeSet<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/hash_set.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |   fn deref<'a>(&'a self) -> &'a StdHashSet<T, S> {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 38 -   fn deref<'a>(&'a self) -> &'a StdHashSet<T, S> {
[INFO] [stdout] 38 +   fn deref(&self) -> &StdHashSet<T, S> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/hash_set.rs:45:16
[INFO] [stdout]    |
[INFO] [stdout] 45 |   fn deref_mut<'a>(&'a mut self) -> &'a mut StdHashSet<T, S> {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 45 -   fn deref_mut<'a>(&'a mut self) -> &'a mut StdHashSet<T, S> {
[INFO] [stdout] 45 +   fn deref_mut(&mut self) -> &mut StdHashSet<T, S> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern creates a reference to a reference
[INFO] [stdout]   --> src/libgcollections/wrappers/optional.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 16 |   if let Some(ref x) = x.as_ref() {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 16 -   if let Some(ref x) = x.as_ref() {
[INFO] [stdout] 16 +   if let Some(x) = x.as_ref() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern creates a reference to a reference
[INFO] [stdout]   --> src/libgcollections/wrappers/optional.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |     if let Some(ref y) = y.as_ref() {
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 17 -     if let Some(ref y) = y.as_ref() {
[INFO] [stdout] 17 +     if let Some(y) = y.as_ref() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/optional.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |   fn deref<'a>(&'a self) -> &'a Option<T> {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 72 -   fn deref<'a>(&'a self) -> &'a Option<T> {
[INFO] [stdout] 72 +   fn deref(&self) -> &Option<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/optional.rs:79:16
[INFO] [stdout]    |
[INFO] [stdout] 79 |   fn deref_mut<'a>(&'a mut self) -> &'a mut Option<T> {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 79 -   fn deref_mut<'a>(&'a mut self) -> &'a mut Option<T> {
[INFO] [stdout] 79 +   fn deref_mut(&mut self) -> &mut Option<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `map_or` can be simplified
[INFO] [stdout]    --> src/libgcollections/wrappers/optional.rs:244:5
[INFO] [stdout]     |
[INFO] [stdout] 244 |     self.as_ref().map_or(false, |x| x == value)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_map_or
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_map_or)]` on by default
[INFO] [stdout] help: use a standard comparison instead
[INFO] [stdout]     |
[INFO] [stdout] 244 -     self.as_ref().map_or(false, |x| x == value)
[INFO] [stdout] 244 +     self.as_ref() == Some(value)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/vector.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |   fn deref<'a>(&'a self) -> &'a Vec<T> {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 41 -   fn deref<'a>(&'a self) -> &'a Vec<T> {
[INFO] [stdout] 41 +   fn deref(&self) -> &Vec<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/vector.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 |   fn deref_mut<'a>(&'a mut self) -> &'a mut Vec<T> {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 48 -   fn deref_mut<'a>(&'a mut self) -> &'a mut Vec<T> {
[INFO] [stdout] 48 +   fn deref_mut(&mut self) -> &mut Vec<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/vector_deque.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |   fn deref<'a>(&'a self) -> &'a VecDeque<T> {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 46 -   fn deref<'a>(&'a self) -> &'a VecDeque<T> {
[INFO] [stdout] 46 +   fn deref(&self) -> &VecDeque<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/vector_deque.rs:53:16
[INFO] [stdout]    |
[INFO] [stdout] 53 |   fn deref_mut<'a>(&'a mut self) -> &'a mut VecDeque<T> {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 53 -   fn deref_mut<'a>(&'a mut self) -> &'a mut VecDeque<T> {
[INFO] [stdout] 53 +   fn deref_mut(&mut self) -> &mut VecDeque<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/queue.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |   fn deref<'a>(&'a self) -> &'a S {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 45 -   fn deref<'a>(&'a self) -> &'a S {
[INFO] [stdout] 45 +   fn deref(&self) -> &S {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/queue.rs:52:16
[INFO] [stdout]    |
[INFO] [stdout] 52 |   fn deref_mut<'a>(&'a mut self) -> &'a mut S {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 52 -   fn deref_mut<'a>(&'a mut self) -> &'a mut S {
[INFO] [stdout] 52 +   fn deref_mut(&mut self) -> &mut S {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/stack.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |   fn deref<'a>(&'a self) -> &'a S {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 43 -   fn deref<'a>(&'a self) -> &'a S {
[INFO] [stdout] 43 +   fn deref(&self) -> &S {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/stack.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |   fn deref_mut<'a>(&'a mut self) -> &'a mut S {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 50 -   fn deref_mut<'a>(&'a mut self) -> &'a mut S {
[INFO] [stdout] 50 +   fn deref_mut(&mut self) -> &mut S {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `clone` on type `SKleene` which implements the `Copy` trait
[INFO] [stdout]    --> src/libgcollections/ops/lattice.rs:159:43
[INFO] [stdout]     |
[INFO] [stdout] 159 |       self.assert_expected("a.entail(b)", ab.clone(), expected, "");
[INFO] [stdout]     |                                           ^^^^^^^^^^ help: try removing the `clone` call: `ab`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#clone_on_copy
[INFO] [stdout]     = note: `#[warn(clippy::clone_on_copy)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/bit_set.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |   fn deref<'a>(&'a self) -> &'a StdBitSet {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout]    = note: `#[warn(clippy::needless_lifetimes)]` on by default
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 35 -   fn deref<'a>(&'a self) -> &'a StdBitSet {
[INFO] [stdout] 35 +   fn deref(&self) -> &StdBitSet {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/bit_set.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |   fn deref_mut<'a>(&'a mut self) -> &'a mut StdBitSet {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 42 -   fn deref_mut<'a>(&'a mut self) -> &'a mut StdBitSet {
[INFO] [stdout] 42 +   fn deref_mut(&mut self) -> &mut StdBitSet {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/btree_set.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |   fn deref<'a>(&'a self) -> &'a StdBTreeSet<T> {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 34 -   fn deref<'a>(&'a self) -> &'a StdBTreeSet<T> {
[INFO] [stdout] 34 +   fn deref(&self) -> &StdBTreeSet<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/btree_set.rs:41:16
[INFO] [stdout]    |
[INFO] [stdout] 41 |   fn deref_mut<'a>(&'a mut self) -> &'a mut StdBTreeSet<T> {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 41 -   fn deref_mut<'a>(&'a mut self) -> &'a mut StdBTreeSet<T> {
[INFO] [stdout] 41 +   fn deref_mut(&mut self) -> &mut StdBTreeSet<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/hash_set.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |   fn deref<'a>(&'a self) -> &'a StdHashSet<T, S> {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 38 -   fn deref<'a>(&'a self) -> &'a StdHashSet<T, S> {
[INFO] [stdout] 38 +   fn deref(&self) -> &StdHashSet<T, S> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/hash_set.rs:45:16
[INFO] [stdout]    |
[INFO] [stdout] 45 |   fn deref_mut<'a>(&'a mut self) -> &'a mut StdHashSet<T, S> {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 45 -   fn deref_mut<'a>(&'a mut self) -> &'a mut StdHashSet<T, S> {
[INFO] [stdout] 45 +   fn deref_mut(&mut self) -> &mut StdHashSet<T, S> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern creates a reference to a reference
[INFO] [stdout]   --> src/libgcollections/wrappers/optional.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 16 |   if let Some(ref x) = x.as_ref() {
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout]    = note: `#[warn(clippy::needless_borrow)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 16 -   if let Some(ref x) = x.as_ref() {
[INFO] [stdout] 16 +   if let Some(x) = x.as_ref() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this pattern creates a reference to a reference
[INFO] [stdout]   --> src/libgcollections/wrappers/optional.rs:17:17
[INFO] [stdout]    |
[INFO] [stdout] 17 |     if let Some(ref y) = y.as_ref() {
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
[INFO] [stdout] help: try
[INFO] [stdout]    |
[INFO] [stdout] 17 -     if let Some(ref y) = y.as_ref() {
[INFO] [stdout] 17 +     if let Some(y) = y.as_ref() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/optional.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |   fn deref<'a>(&'a self) -> &'a Option<T> {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 72 -   fn deref<'a>(&'a self) -> &'a Option<T> {
[INFO] [stdout] 72 +   fn deref(&self) -> &Option<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/optional.rs:79:16
[INFO] [stdout]    |
[INFO] [stdout] 79 |   fn deref_mut<'a>(&'a mut self) -> &'a mut Option<T> {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 79 -   fn deref_mut<'a>(&'a mut self) -> &'a mut Option<T> {
[INFO] [stdout] 79 +   fn deref_mut(&mut self) -> &mut Option<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this `map_or` can be simplified
[INFO] [stdout]    --> src/libgcollections/wrappers/optional.rs:244:5
[INFO] [stdout]     |
[INFO] [stdout] 244 |     self.as_ref().map_or(false, |x| x == value)
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_map_or
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_map_or)]` on by default
[INFO] [stdout] help: use a standard comparison instead
[INFO] [stdout]     |
[INFO] [stdout] 244 -     self.as_ref().map_or(false, |x| x == value)
[INFO] [stdout] 244 +     self.as_ref() == Some(value)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/libgcollections/wrappers/optional.rs:519:15
[INFO] [stdout]     |
[INFO] [stdout] 519 |       assert!(x.overlap(&y) == !r, "{:?} overlap {:?} is not equal to {:?}", x, y, !r);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: try: `x.overlap(&y) != r`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout]     = note: `#[warn(clippy::nonminimal_bool)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/libgcollections/wrappers/optional.rs:520:15
[INFO] [stdout]     |
[INFO] [stdout] 520 |       assert!(y.overlap(&x) == !r, "{:?} overlap {:?} is not equal to {:?}", y, x, !r);
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^ help: try: `y.overlap(&x) != r`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#nonminimal_bool
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/libgcollections/wrappers/primitives.rs:98:7
[INFO] [stdout]    |
[INFO] [stdout] 98 |       assert_eq!(i.is_singleton(), true);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout]    = note: `#[warn(clippy::bool_assert_comparison)]` on by default
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 98 -       assert_eq!(i.is_singleton(), true);
[INFO] [stdout] 98 +       assert!(i.is_singleton());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]   --> src/libgcollections/wrappers/primitives.rs:99:7
[INFO] [stdout]    |
[INFO] [stdout] 99 |       assert_eq!(i.is_empty(), false);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]    |
[INFO] [stdout] 99 -       assert_eq!(i.is_empty(), false);
[INFO] [stdout] 99 +       assert!(!i.is_empty());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/libgcollections/wrappers/primitives.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         assert_eq!(i.is_proper_subset(j), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 113 -         assert_eq!(i.is_proper_subset(j), false);
[INFO] [stdout] 113 +         assert!(!i.is_proper_subset(j));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: used `assert_eq!` with a literal bool
[INFO] [stdout]    --> src/libgcollections/wrappers/primitives.rs:114:9
[INFO] [stdout]     |
[INFO] [stdout] 114 |         assert_eq!(j.is_proper_subset(i), false);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#bool_assert_comparison
[INFO] [stdout] help: replace it with `assert!(..)`
[INFO] [stdout]     |
[INFO] [stdout] 114 -         assert_eq!(j.is_proper_subset(i), false);
[INFO] [stdout] 114 +         assert!(!j.is_proper_subset(i));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/vector.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |   fn deref<'a>(&'a self) -> &'a Vec<T> {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 41 -   fn deref<'a>(&'a self) -> &'a Vec<T> {
[INFO] [stdout] 41 +   fn deref(&self) -> &Vec<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/vector.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 |   fn deref_mut<'a>(&'a mut self) -> &'a mut Vec<T> {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 48 -   fn deref_mut<'a>(&'a mut self) -> &'a mut Vec<T> {
[INFO] [stdout] 48 +   fn deref_mut(&mut self) -> &mut Vec<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/vector_deque.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |   fn deref<'a>(&'a self) -> &'a VecDeque<T> {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 46 -   fn deref<'a>(&'a self) -> &'a VecDeque<T> {
[INFO] [stdout] 46 +   fn deref(&self) -> &VecDeque<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/wrappers/vector_deque.rs:53:16
[INFO] [stdout]    |
[INFO] [stdout] 53 |   fn deref_mut<'a>(&'a mut self) -> &'a mut VecDeque<T> {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 53 -   fn deref_mut<'a>(&'a mut self) -> &'a mut VecDeque<T> {
[INFO] [stdout] 53 +   fn deref_mut(&mut self) -> &mut VecDeque<T> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/queue.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |   fn deref<'a>(&'a self) -> &'a S {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 45 -   fn deref<'a>(&'a self) -> &'a S {
[INFO] [stdout] 45 +   fn deref(&self) -> &S {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/queue.rs:52:16
[INFO] [stdout]    |
[INFO] [stdout] 52 |   fn deref_mut<'a>(&'a mut self) -> &'a mut S {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 52 -   fn deref_mut<'a>(&'a mut self) -> &'a mut S {
[INFO] [stdout] 52 +   fn deref_mut(&mut self) -> &mut S {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/stack.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |   fn deref<'a>(&'a self) -> &'a S {
[INFO] [stdout]    |            ^^   ^^           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 43 -   fn deref<'a>(&'a self) -> &'a S {
[INFO] [stdout] 43 +   fn deref(&self) -> &S {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the following explicit lifetimes could be elided: 'a
[INFO] [stdout]   --> src/libgcollections/stack.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |   fn deref_mut<'a>(&'a mut self) -> &'a mut S {
[INFO] [stdout]    |                ^^   ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stdout] help: elide the lifetimes
[INFO] [stdout]    |
[INFO] [stdout] 50 -   fn deref_mut<'a>(&'a mut self) -> &'a mut S {
[INFO] [stdout] 50 +   fn deref_mut(&mut self) -> &mut S {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "91d7cb2725beb9a511907404a378b02c7ca3401dac496beb346fd74adc2b70fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91d7cb2725beb9a511907404a378b02c7ca3401dac496beb346fd74adc2b70fd", kill_on_drop: false }`
[INFO] [stdout] 91d7cb2725beb9a511907404a378b02c7ca3401dac496beb346fd74adc2b70fd