[INFO] fetching crate hash_ord 0.1.10...
[INFO] checking hash_ord-0.1.10 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate hash_ord 0.1.10 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate hash_ord 0.1.10 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hash_ord 0.1.10
[INFO] finished tweaking crates.io crate hash_ord 0.1.10
[INFO] tweaked toml for crates.io crate hash_ord 0.1.10 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f4b0d4258aeb37d00f73f3e644672ee5d6eac6ebd473a93be960889384adb5e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7f4b0d4258aeb37d00f73f3e644672ee5d6eac6ebd473a93be960889384adb5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f4b0d4258aeb37d00f73f3e644672ee5d6eac6ebd473a93be960889384adb5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f4b0d4258aeb37d00f73f3e644672ee5d6eac6ebd473a93be960889384adb5e", kill_on_drop: false }`
[INFO] [stdout] 7f4b0d4258aeb37d00f73f3e644672ee5d6eac6ebd473a93be960889384adb5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 43ff05488279e4c055b85ef5a7ac04be113c2898680494721059bb6cfb1772bd
[INFO] running `Command { std: "docker" "start" "-a" "43ff05488279e4c055b85ef5a7ac04be113c2898680494721059bb6cfb1772bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking hash_ord v0.1.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/ord_map.rs:1780:34
[INFO] [stdout]      |
[INFO] [stdout] 1780 |     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout]      |                                  ^     ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1780 -     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout] 1780 +     fn next(&mut self) -> Option<&'a K> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/ord_map.rs:1815:34
[INFO] [stdout]      |
[INFO] [stdout] 1815 |     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout]      |                                  ^     ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1815 -     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout] 1815 +     fn next(&mut self) -> Option<&'a V> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/ord_map.rs:1850:34
[INFO] [stdout]      |
[INFO] [stdout] 1850 |     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout]      |                                  ^         ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1850 -     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout] 1850 +     fn next(&mut self) -> Option<&'a mut V> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/hash_map.rs:204:34
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout]     |                                  ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 204 -     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout] 204 +     fn next(&mut self) -> Option<&'a K> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/hash_map.rs:238:34
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout]     |                                  ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout] 238 +     fn next(&mut self) -> Option<&'a V> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/hash_map.rs:272:34
[INFO] [stdout]     |
[INFO] [stdout] 272 |     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout]     |                                  ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 272 -     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout] 272 +     fn next(&mut self) -> Option<&'a mut V> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/fastbin.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut fastbin = unsafe { mem::uninitialized::<Fastbin>() };
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> src/macros.rs:3:10
[INFO] [stdout]    |
[INFO] [stdout] 3  |         &(*(0 as *const $TYPE)).$MEMBER as *const _ as isize
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/ord_map.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         container_of!(self, AVLEntry<K, V>, node)
[INFO] [stdout]    |         ----------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deref_nullptr)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> src/macros.rs:3:10
[INFO] [stdout]    |
[INFO] [stdout] 3  |         &(*(0 as *const $TYPE)).$MEMBER as *const _ as isize
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/hash_table.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         container_of!(self, HashIndex, node)
[INFO] [stdout]    |         ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/macros.rs:3:10
[INFO] [stdout]     |
[INFO] [stdout] 3   |         &(*(0 as *const $TYPE)).$MEMBER as *const _ as isize
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/hash_table.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         container_of!(self, HashNode<K>, avl_node)
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/macros.rs:3:10
[INFO] [stdout]     |
[INFO] [stdout] 3   |         &(*(0 as *const $TYPE)).$MEMBER as *const _ as isize
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/hash_map.rs:359:5
[INFO] [stdout]     |
[INFO] [stdout] 359 |     container_of!(key, (K, V), 0)
[INFO] [stdout]     |     ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/macros.rs:3:10
[INFO] [stdout]     |
[INFO] [stdout] 3   |         &(*(0 as *const $TYPE)).$MEMBER as *const _ as isize
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/hash_map.rs:411:9
[INFO] [stdout]     |
[INFO] [stdout] 411 |         container_of!(self, InternalHashEntry<K, V>, node)
[INFO] [stdout]     |         -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> examples/rbtree_by_tickdream125.rs:491:34
[INFO] [stdout]     |
[INFO] [stdout] 491 |     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout]     |                                  ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 491 -     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout] 491 +     fn next(&mut self) -> Option<&'a K> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> examples/rbtree_by_tickdream125.rs:536:34
[INFO] [stdout]     |
[INFO] [stdout] 536 |     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout]     |                                  ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 536 -     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout] 536 +     fn next(&mut self) -> Option<&'a V> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> examples/rbtree_by_tickdream125.rs:584:34
[INFO] [stdout]     |
[INFO] [stdout] 584 |     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout]     |                                  ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 584 -     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout] 584 +     fn next(&mut self) -> Option<&'a mut V> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> examples/rbtree_by_tickdream125.rs:491:34
[INFO] [stdout]     |
[INFO] [stdout] 491 |     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout]     |                                  ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 491 -     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout] 491 +     fn next(&mut self) -> Option<&'a K> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> examples/rbtree_by_tickdream125.rs:536:34
[INFO] [stdout]     |
[INFO] [stdout] 536 |     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout]     |                                  ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 536 -     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout] 536 +     fn next(&mut self) -> Option<&'a V> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> examples/rbtree_by_tickdream125.rs:584:34
[INFO] [stdout]     |
[INFO] [stdout] 584 |     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout]     |                                  ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 584 -     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout] 584 +     fn next(&mut self) -> Option<&'a mut V> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Option::<T>::is_some` that must be used
[INFO] [stdout]   --> benches/bench_avl.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |             t.get(num).is_some();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you intended to assert that this has a value, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T>::new` that must be used
[INFO] [stdout]   --> benches/bench_avl.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             Box::new(Node { data: Some(123) });
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/ord_map.rs:1780:34
[INFO] [stdout]      |
[INFO] [stdout] 1780 |     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout]      |                                  ^     ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1780 -     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout] 1780 +     fn next(&mut self) -> Option<&'a K> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/ord_map.rs:1815:34
[INFO] [stdout]      |
[INFO] [stdout] 1815 |     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout]      |                                  ^     ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1815 -     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout] 1815 +     fn next(&mut self) -> Option<&'a V> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/ord_map.rs:1850:34
[INFO] [stdout]      |
[INFO] [stdout] 1850 |     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout]      |                                  ^         ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1850 -     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout] 1850 +     fn next(&mut self) -> Option<&'a mut V> {
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/hash_map.rs:204:34
[INFO] [stdout]     |
[INFO] [stdout] 204 |     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout]     |                                  ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 204 -     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout] 204 +     fn next(&mut self) -> Option<&'a K> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/hash_map.rs:238:34
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout]     |                                  ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout] 238 +     fn next(&mut self) -> Option<&'a V> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/hash_map.rs:272:34
[INFO] [stdout]     |
[INFO] [stdout] 272 |     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout]     |                                  ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 272 -     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout] 272 +     fn next(&mut self) -> Option<&'a mut V> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/fastbin.rs:27:41
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut fastbin = unsafe { mem::uninitialized::<Fastbin>() };
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> src/macros.rs:3:10
[INFO] [stdout]    |
[INFO] [stdout] 3  |         &(*(0 as *const $TYPE)).$MEMBER as *const _ as isize
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/ord_map.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         container_of!(self, AVLEntry<K, V>, node)
[INFO] [stdout]    |         ----------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deref_nullptr)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]   --> src/macros.rs:3:10
[INFO] [stdout]    |
[INFO] [stdout] 3  |         &(*(0 as *const $TYPE)).$MEMBER as *const _ as isize
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/hash_table.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         container_of!(self, HashIndex, node)
[INFO] [stdout]    |         ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/macros.rs:3:10
[INFO] [stdout]     |
[INFO] [stdout] 3   |         &(*(0 as *const $TYPE)).$MEMBER as *const _ as isize
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/hash_table.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         container_of!(self, HashNode<K>, avl_node)
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/macros.rs:3:10
[INFO] [stdout]     |
[INFO] [stdout] 3   |         &(*(0 as *const $TYPE)).$MEMBER as *const _ as isize
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/hash_map.rs:359:5
[INFO] [stdout]     |
[INFO] [stdout] 359 |     container_of!(key, (K, V), 0)
[INFO] [stdout]     |     ----------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: dereferencing a null pointer
[INFO] [stdout]    --> src/macros.rs:3:10
[INFO] [stdout]     |
[INFO] [stdout] 3   |         &(*(0 as *const $TYPE)).$MEMBER as *const _ as isize
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/hash_map.rs:411:9
[INFO] [stdout]     |
[INFO] [stdout] 411 |         container_of!(self, InternalHashEntry<K, V>, node)
[INFO] [stdout]     |         -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `offset_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.97s
[INFO] running `Command { std: "docker" "inspect" "43ff05488279e4c055b85ef5a7ac04be113c2898680494721059bb6cfb1772bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43ff05488279e4c055b85ef5a7ac04be113c2898680494721059bb6cfb1772bd", kill_on_drop: false }`
[INFO] [stdout] 43ff05488279e4c055b85ef5a7ac04be113c2898680494721059bb6cfb1772bd