[INFO] cloning repository https://github.com/Jungle430/extendible-hashing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jungle430/extendible-hashing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJungle430%2Fextendible-hashing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJungle430%2Fextendible-hashing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4b5262586f1b206412982b1956de8a650347e48
[INFO] linting Jungle430/extendible-hashing against nightly for clippy-nonminimal_bool-denied
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJungle430%2Fextendible-hashing" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Jungle430/extendible-hashing
[INFO] finished tweaking git repo https://github.com/Jungle430/extendible-hashing
[INFO] tweaked toml for git repo https://github.com/Jungle430/extendible-hashing written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Jungle430/extendible-hashing 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 git repo https://github.com/Jungle430/extendible-hashing 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 04b5392fc1dfd21aa8956dda8fb22ad9fd2aab46fba4213de91a20698d7182bf
[INFO] running `Command { std: "docker" "start" "-a" "04b5392fc1dfd21aa8956dda8fb22ad9fd2aab46fba4213de91a20698d7182bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04b5392fc1dfd21aa8956dda8fb22ad9fd2aab46fba4213de91a20698d7182bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04b5392fc1dfd21aa8956dda8fb22ad9fd2aab46fba4213de91a20698d7182bf", kill_on_drop: false }`
[INFO] [stdout] 04b5392fc1dfd21aa8956dda8fb22ad9fd2aab46fba4213de91a20698d7182bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f0dd0cc9e0672d2a53a1cd1dd42e8325cb780d957c35af4fa55bf49fac61230c
[INFO] running `Command { std: "docker" "start" "-a" "f0dd0cc9e0672d2a53a1cd1dd42e8325cb780d957c35af4fa55bf49fac61230c", kill_on_drop: false }`
[INFO] [stderr]     Checking extendible-hashing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `if let` since only the `Some` variant of the iterator element is used
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:98:13
[INFO] [stdout]     |
[INFO] [stdout]  98 | /             for elem in self.elems.iter() {
[INFO] [stdout]  99 | |                 if let Some(elem) = elem {
[INFO] [stdout] 100 | |                     if hash_code == elem.hash_code && *key == elem.key {
[INFO] [stdout] 101 | |                         return Some(&elem.value);
[INFO] [stdout] ...   |
[INFO] [stdout] 104 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] help: try `.flatten()` and remove the `if let` statement in the for loop
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:99:17
[INFO] [stdout]     |
[INFO] [stdout]  99 | /                 if let Some(elem) = elem {
[INFO] [stdout] 100 | |                     if hash_code == elem.hash_code && *key == elem.key {
[INFO] [stdout] 101 | |                         return Some(&elem.value);
[INFO] [stdout] 102 | |                     }
[INFO] [stdout] 103 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_flatten
[INFO] [stdout]     = note: `#[warn(clippy::manual_flatten)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout]  98 ~             for elem in self.elems.iter().flatten() {
[INFO] [stdout]  99 +                 if hash_code == elem.hash_code && *key == elem.key {
[INFO] [stdout] 100 +                     return Some(&elem.value);
[INFO] [stdout] 101 +                 }
[INFO] [stdout] 102 +             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `if let` since only the `Some` variant of the iterator element is used
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 | /             for elem in self.elems.iter() {
[INFO] [stdout] 131 | |                 if let Some(elem) = elem {
[INFO] [stdout] 132 | |                     if hash_code == elem.hash_code && *key == elem.key {
[INFO] [stdout] 133 | |                         return true;
[INFO] [stdout] ...   |
[INFO] [stdout] 136 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] help: try `.flatten()` and remove the `if let` statement in the for loop
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 | /                 if let Some(elem) = elem {
[INFO] [stdout] 132 | |                     if hash_code == elem.hash_code && *key == elem.key {
[INFO] [stdout] 133 | |                         return true;
[INFO] [stdout] 134 | |                     }
[INFO] [stdout] 135 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_flatten
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 130 ~             for elem in self.elems.iter().flatten() {
[INFO] [stdout] 131 +                 if hash_code == elem.hash_code && *key == elem.key {
[INFO] [stdout] 132 +                     return true;
[INFO] [stdout] 133 +                 }
[INFO] [stdout] 134 +             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `Option::map`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 | /             match res {
[INFO] [stdout] 226 | |                 Some(value) => Some(value.clone()),
[INFO] [stdout] 227 | |                 None => None,
[INFO] [stdout] 228 | |             }
[INFO] [stdout]     | |_____________^ help: try: `res.map(|value| value.clone())`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_map
[INFO] [stdout]     = note: `#[warn(clippy::manual_map)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`f32` -> `f32`)
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:244:55
[INFO] [stdout]     |
[INFO] [stdout] 244 |                         < (self.global_depth as f32 * DIRECTORY_SHRINK_LOAD_FACTOR as f32) as usize
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `DIRECTORY_SHRINK_LOAD_FACTOR`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:261:13
[INFO] [stdout]     |
[INFO] [stdout] 261 |             hash_code as usize & ((1 << self.global_depth) - 1)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^ help: try: `hash_code`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:311:24
[INFO] [stdout]     |
[INFO] [stdout] 311 |                     if elem.hash_code as usize & mask == pair_index & mask {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `elem.hash_code`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `if let` since only the `Some` variant of the iterator element is used
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:98:13
[INFO] [stdout]     |
[INFO] [stdout]  98 | /             for elem in self.elems.iter() {
[INFO] [stdout]  99 | |                 if let Some(elem) = elem {
[INFO] [stdout] 100 | |                     if hash_code == elem.hash_code && *key == elem.key {
[INFO] [stdout] 101 | |                         return Some(&elem.value);
[INFO] [stdout] ...   |
[INFO] [stdout] 104 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] help: try `.flatten()` and remove the `if let` statement in the for loop
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:99:17
[INFO] [stdout]     |
[INFO] [stdout]  99 | /                 if let Some(elem) = elem {
[INFO] [stdout] 100 | |                     if hash_code == elem.hash_code && *key == elem.key {
[INFO] [stdout] 101 | |                         return Some(&elem.value);
[INFO] [stdout] 102 | |                     }
[INFO] [stdout] 103 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_flatten
[INFO] [stdout]     = note: `#[warn(clippy::manual_flatten)]` on by default
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout]  98 ~             for elem in self.elems.iter().flatten() {
[INFO] [stdout]  99 +                 if hash_code == elem.hash_code && *key == elem.key {
[INFO] [stdout] 100 +                     return Some(&elem.value);
[INFO] [stdout] 101 +                 }
[INFO] [stdout] 102 +             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `if let` since only the `Some` variant of the iterator element is used
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 | /             for elem in self.elems.iter() {
[INFO] [stdout] 131 | |                 if let Some(elem) = elem {
[INFO] [stdout] 132 | |                     if hash_code == elem.hash_code && *key == elem.key {
[INFO] [stdout] 133 | |                         return true;
[INFO] [stdout] ...   |
[INFO] [stdout] 136 | |             }
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] help: try `.flatten()` and remove the `if let` statement in the for loop
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:131:17
[INFO] [stdout]     |
[INFO] [stdout] 131 | /                 if let Some(elem) = elem {
[INFO] [stdout] 132 | |                     if hash_code == elem.hash_code && *key == elem.key {
[INFO] [stdout] 133 | |                         return true;
[INFO] [stdout] 134 | |                     }
[INFO] [stdout] 135 | |                 }
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_flatten
[INFO] [stdout] help: try
[INFO] [stdout]     |
[INFO] [stdout] 130 ~             for elem in self.elems.iter().flatten() {
[INFO] [stdout] 131 +                 if hash_code == elem.hash_code && *key == elem.key {
[INFO] [stdout] 132 +                     return true;
[INFO] [stdout] 133 +                 }
[INFO] [stdout] 134 +             }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: manual implementation of `Option::map`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 | /             match res {
[INFO] [stdout] 226 | |                 Some(value) => Some(value.clone()),
[INFO] [stdout] 227 | |                 None => None,
[INFO] [stdout] 228 | |             }
[INFO] [stdout]     | |_____________^ help: try: `res.map(|value| value.clone())`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_map
[INFO] [stdout]     = note: `#[warn(clippy::manual_map)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`f32` -> `f32`)
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:244:55
[INFO] [stdout]     |
[INFO] [stdout] 244 |                         < (self.global_depth as f32 * DIRECTORY_SHRINK_LOAD_FACTOR as f32) as usize
[INFO] [stdout]     |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `DIRECTORY_SHRINK_LOAD_FACTOR`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout]     = note: `#[warn(clippy::unnecessary_cast)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:261:13
[INFO] [stdout]     |
[INFO] [stdout] 261 |             hash_code as usize & ((1 << self.global_depth) - 1)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^ help: try: `hash_code`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting to the same type is unnecessary (`usize` -> `usize`)
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:311:24
[INFO] [stdout]     |
[INFO] [stdout] 311 |                     if elem.hash_code as usize & mask == pair_index & mask {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `elem.hash_code`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this boolean expression can be simplified
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:561:17
[INFO] [stdout]     |
[INFO] [stdout] 561 |         assert!(!bucket_page2.put(key, value, hash_code).is_ok());
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `bucket_page2.put(key, value, hash_code).is_err()`
[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: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:558:19
[INFO] [stdout]     |
[INFO] [stdout] 558 |         let key = format!("key");
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout]     = note: `#[warn(clippy::useless_format)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:559:21
[INFO] [stdout]     |
[INFO] [stdout] 559 |         let value = format!("value");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"value".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:597:19
[INFO] [stdout]     |
[INFO] [stdout] 597 |         let key = format!("key1");
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key1".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:598:21
[INFO] [stdout]     |
[INFO] [stdout] 598 |         let value = format!("value1");
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"value1".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:607:30
[INFO] [stdout]     |
[INFO] [stdout] 607 |             bucket_page.get(&format!("key1"), test_hash_code(&format!("key1")),),
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key1".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:607:63
[INFO] [stdout]     |
[INFO] [stdout] 607 |             bucket_page.get(&format!("key1"), test_hash_code(&format!("key1")),),
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key1".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:707:13
[INFO] [stdout]     |
[INFO] [stdout] 707 |             format!("key"),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:708:13
[INFO] [stdout]     |
[INFO] [stdout] 708 |             format!("value"),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"value".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:709:29
[INFO] [stdout]     |
[INFO] [stdout] 709 |             test_hash_code(&format!("key")),
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:712:33
[INFO] [stdout]     |
[INFO] [stdout] 712 |             directory_page.get(&format!("key"), test_hash_code(&format!("key"))),
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:712:65
[INFO] [stdout]     |
[INFO] [stdout] 712 |             directory_page.get(&format!("key"), test_hash_code(&format!("key"))),
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:713:18
[INFO] [stdout]     |
[INFO] [stdout] 713 |             Some(format!("value"))
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"value".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:749:13
[INFO] [stdout]     |
[INFO] [stdout] 749 |             format!("key"),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:750:13
[INFO] [stdout]     |
[INFO] [stdout] 750 |             format!("value"),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"value".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:751:29
[INFO] [stdout]     |
[INFO] [stdout] 751 |             test_hash_code(&format!("key")),
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:753:41
[INFO] [stdout]     |
[INFO] [stdout] 753 |         assert!(directory_page.contain(&format!("key"), test_hash_code(&format!("key"))));
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:753:73
[INFO] [stdout]     |
[INFO] [stdout] 753 |         assert!(directory_page.contain(&format!("key"), test_hash_code(&format!("key"))));
[INFO] [stdout]     |                                                                         ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:781:13
[INFO] [stdout]     |
[INFO] [stdout] 781 |             format!("key"),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:782:13
[INFO] [stdout]     |
[INFO] [stdout] 782 |             format!("value"),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"value".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:783:29
[INFO] [stdout]     |
[INFO] [stdout] 783 |             test_hash_code(&format!("key")),
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:785:41
[INFO] [stdout]     |
[INFO] [stdout] 785 |         assert!(directory_page.contain(&format!("key"), test_hash_code(&format!("key"))));
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:785:73
[INFO] [stdout]     |
[INFO] [stdout] 785 |         assert!(directory_page.contain(&format!("key"), test_hash_code(&format!("key"))));
[INFO] [stdout]     |                                                                         ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:787:33
[INFO] [stdout]     |
[INFO] [stdout] 787 |             directory_page.del(&format!("key"), test_hash_code(&format!("key"))),
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:787:65
[INFO] [stdout]     |
[INFO] [stdout] 787 |             directory_page.del(&format!("key"), test_hash_code(&format!("key"))),
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:788:19
[INFO] [stdout]     |
[INFO] [stdout] 788 |             Some((format!("key"), format!("value")))
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:788:35
[INFO] [stdout]     |
[INFO] [stdout] 788 |             Some((format!("key"), format!("value")))
[INFO] [stdout]     |                                   ^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"value".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:792:42
[INFO] [stdout]     |
[INFO] [stdout] 792 |         assert!(!directory_page.contain(&format!("key"), test_hash_code(&format!("key"))));
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: useless use of `format!`
[INFO] [stdout]    --> src/extendible_hashing/mod.rs:792:74
[INFO] [stdout]     |
[INFO] [stdout] 792 |         assert!(!directory_page.contain(&format!("key"), test_hash_code(&format!("key"))));
[INFO] [stdout]     |                                                                          ^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"key".to_string()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "f0dd0cc9e0672d2a53a1cd1dd42e8325cb780d957c35af4fa55bf49fac61230c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0dd0cc9e0672d2a53a1cd1dd42e8325cb780d957c35af4fa55bf49fac61230c", kill_on_drop: false }`
[INFO] [stdout] f0dd0cc9e0672d2a53a1cd1dd42e8325cb780d957c35af4fa55bf49fac61230c