[INFO] fetching crate dashmap-shard 0.1.1...
[INFO] checking dashmap-shard-0.1.1 against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] extracting crate dashmap-shard 0.1.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate dashmap-shard 0.1.1 on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dashmap-shard 0.1.1
[INFO] finished tweaking crates.io crate dashmap-shard 0.1.1
[INFO] tweaked toml for crates.io crate dashmap-shard 0.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 40 packages to latest compatible versions
[INFO] [stderr]       Adding ahash v0.2.19 (available: v0.8.11)
[INFO] [stderr]       Adding autocfg v0.1.8 (available: v1.4.0)
[INFO] [stderr]       Adding rand v0.5.6 (available: v0.8.5)
[INFO] [stderr]       Adding rustc-hash v1.1.0 (available: v2.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 360987a26eb6291abfc1950ef7fa020f9f9d5bb7c7237de7719a4b41340b559a
[INFO] running `Command { std: "docker" "start" "-a" "360987a26eb6291abfc1950ef7fa020f9f9d5bb7c7237de7719a4b41340b559a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "360987a26eb6291abfc1950ef7fa020f9f9d5bb7c7237de7719a4b41340b559a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "360987a26eb6291abfc1950ef7fa020f9f9d5bb7c7237de7719a4b41340b559a", kill_on_drop: false }`
[INFO] [stdout] 360987a26eb6291abfc1950ef7fa020f9f9d5bb7c7237de7719a4b41340b559a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb2fea317685a05f73b059c4fe82cdc944764c0aa7c1a6ee4c3c71c50ff8d1ce
[INFO] running `Command { std: "docker" "start" "-a" "eb2fea317685a05f73b059c4fe82cdc944764c0aa7c1a6ee4c3c71c50ff8d1ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking serde_test v1.0.177
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling dashmap-shard v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]     Checking ahash v0.2.19
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_extern_crate_alloc`
[INFO] [stdout]   --> src/lib.rs:33:7
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[cfg(has_extern_crate_alloc)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `fmt_debug`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_extern_crate_alloc)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_extern_crate_alloc)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_extern_crate_alloc`
[INFO] [stdout]   --> src/lib.rs:36:11
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[cfg(not(has_extern_crate_alloc))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_extern_crate_alloc)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_extern_crate_alloc)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/raw/sse2.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/map.rs:1953:34
[INFO] [stdout]      |
[INFO] [stdout] 1953 |     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] 1953 -     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout] 1953 +     fn next(&mut self) -> Option<&'a K> {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/map.rs:1973:34
[INFO] [stdout]      |
[INFO] [stdout] 1973 |     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout]      |                                  ^     ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1973 -     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout] 1973 +     fn next(&mut self) -> Option<&'a V> {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/map.rs:1993:34
[INFO] [stdout]      |
[INFO] [stdout] 1993 |     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout]      |                                  ^         ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1993 -     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout] 1993 +     fn next(&mut self) -> Option<&'a mut V> {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_extern_crate_alloc`
[INFO] [stdout]   --> src/lib.rs:33:7
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[cfg(has_extern_crate_alloc)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `fmt_debug`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows`
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_extern_crate_alloc)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_extern_crate_alloc)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `has_extern_crate_alloc`
[INFO] [stdout]   --> src/lib.rs:36:11
[INFO] [stdout]    |
[INFO] [stdout] 36 | #[cfg(not(has_extern_crate_alloc))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(has_extern_crate_alloc)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(has_extern_crate_alloc)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/raw/sse2.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 |         };
[INFO] [stdout]    |          ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/map.rs:1953:34
[INFO] [stdout]      |
[INFO] [stdout] 1953 |     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] 1953 -     fn next(&mut self) -> Option<(&'a K)> {
[INFO] [stdout] 1953 +     fn next(&mut self) -> Option<&'a K> {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/map.rs:1973:34
[INFO] [stdout]      |
[INFO] [stdout] 1973 |     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout]      |                                  ^     ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1973 -     fn next(&mut self) -> Option<(&'a V)> {
[INFO] [stdout] 1973 +     fn next(&mut self) -> Option<&'a V> {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/map.rs:1993:34
[INFO] [stdout]      |
[INFO] [stdout] 1993 |     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout]      |                                  ^         ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1993 -     fn next(&mut self) -> Option<(&'a mut V)> {
[INFO] [stdout] 1993 +     fn next(&mut self) -> Option<&'a mut V> {
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]    --> src/map.rs:762:5
[INFO] [stdout]     |
[INFO] [stdout] 762 | /     pub fn get_hash_nocheck_key_value<Q: ?Sized>(&self, hash: u64, k: &Q) -> Option<(&K, &V)>
[INFO] [stdout] 763 | |     where
[INFO] [stdout] 764 | |         K: Borrow<Q>,
[INFO] [stdout] 765 | |         Q: Hash + Eq,
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:25:9
[INFO] [stdout]     |
[INFO] [stdout] 25  | #![warn(missing_docs)]
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `hashbrown`
[INFO] [stdout]  --> tests/set.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use hashbrown::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared crate or module `hashbrown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `hashbrown`
[INFO] [stdout]  --> tests/hasher.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use hashbrown::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^ use of undeclared crate or module `hashbrown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `hashbrown`
[INFO] [stdout]   --> benches/bench.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use hashbrown::hash_map::DefaultHashBuilder;
[INFO] [stdout]    |     ^^^^^^^^^ use of undeclared crate or module `hashbrown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `hashbrown`
[INFO] [stdout]   --> tests/hasher.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |     check::<hashbrown::hash_map::DefaultHashBuilder>();
[INFO] [stdout]    |             ^^^^^^^^^ use of undeclared crate or module `hashbrown`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]    |
[INFO] [stdout] 5  + use dashmap_shard::hash_map;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `hash_map`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 26 -     check::<hashbrown::hash_map::DefaultHashBuilder>();
[INFO] [stdout] 26 +     check::<hash_map::DefaultHashBuilder>();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `hashbrown`
[INFO] [stdout]   --> benches/bench.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use hashbrown::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^ use of undeclared crate or module `hashbrown`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dashmap-shard` (test "set") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dashmap-shard` (test "hasher") due to 2 previous errors
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]     --> src/set.rs:1824:34
[INFO] [stdout]      |
[INFO] [stdout] 1824 |         struct Foo(&'static str, i32);
[INFO] [stdout]      |                ---               ^^^
[INFO] [stdout]      |                |
[INFO] [stdout]      |                field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider removing this field
[INFO] [stdout]      = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a method
[INFO] [stdout]    --> src/map.rs:762:5
[INFO] [stdout]     |
[INFO] [stdout] 762 | /     pub fn get_hash_nocheck_key_value<Q: ?Sized>(&self, hash: u64, k: &Q) -> Option<(&K, &V)>
[INFO] [stdout] 763 | |     where
[INFO] [stdout] 764 | |         K: Borrow<Q>,
[INFO] [stdout] 765 | |         Q: Hash + Eq,
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:25:9
[INFO] [stdout]     |
[INFO] [stdout] 25  | #![warn(missing_docs)]
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/map.rs:3403:21
[INFO] [stdout]      |
[INFO] [stdout] 3403 |         a.insert(key.clone(), value.clone());
[INFO] [stdout]      |                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]      = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/map.rs:3403:36
[INFO] [stdout]      |
[INFO] [stdout] 3403 |         a.insert(key.clone(), value.clone());
[INFO] [stdout]      |                                    ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/map.rs:3407:26
[INFO] [stdout]      |
[INFO] [stdout] 3407 |         match a.entry(key.clone()) {
[INFO] [stdout]      |                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/map.rs:3422:26
[INFO] [stdout]      |
[INFO] [stdout] 3422 |         match a.entry(key.clone()) {
[INFO] [stdout]      |                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/map.rs:3426:31
[INFO] [stdout]      |
[INFO] [stdout] 3426 |                 e.insert(value.clone());
[INFO] [stdout]      |                               ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dashmap-shard` (bench "bench") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "eb2fea317685a05f73b059c4fe82cdc944764c0aa7c1a6ee4c3c71c50ff8d1ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb2fea317685a05f73b059c4fe82cdc944764c0aa7c1a6ee4c3c71c50ff8d1ce", kill_on_drop: false }`
[INFO] [stdout] eb2fea317685a05f73b059c4fe82cdc944764c0aa7c1a6ee4c3c71c50ff8d1ce
