[INFO] fetching crate garando_syntax 0.1.1...
[INFO] checking garando_syntax-0.1.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate garando_syntax 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate garando_syntax 0.1.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate garando_syntax 0.1.1
[INFO] finished tweaking crates.io crate garando_syntax 0.1.1
[INFO] tweaked toml for crates.io crate garando_syntax 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding dirs v2.0.2 (latest: v5.0.1)
[INFO] [stderr]       Adding dirs-sys v0.3.7 (latest: v0.4.1)
[INFO] [stderr]       Adding term v0.6.1 (latest: v1.0.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded garando_errors v0.1.0
[INFO] [stderr]   Downloaded garando_pos v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98f4e316c8eb1d29a7d2342e46f0bd06cfb451d43357d5d184cd69b2178f2bf6
[INFO] running `Command { std: "docker" "start" "-a" "98f4e316c8eb1d29a7d2342e46f0bd06cfb451d43357d5d184cd69b2178f2bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98f4e316c8eb1d29a7d2342e46f0bd06cfb451d43357d5d184cd69b2178f2bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98f4e316c8eb1d29a7d2342e46f0bd06cfb451d43357d5d184cd69b2178f2bf6", kill_on_drop: false }`
[INFO] [stdout] 98f4e316c8eb1d29a7d2342e46f0bd06cfb451d43357d5d184cd69b2178f2bf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b9d27ce69bc59381b19b64504b73cdc74711ad1fbfee1a19b3a35f451dd07ca
[INFO] running `Command { std: "docker" "start" "-a" "7b9d27ce69bc59381b19b64504b73cdc74711ad1fbfee1a19b3a35f451dd07ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]     Checking unicode-xid v0.2.5
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking garando_pos v0.1.0
[INFO] [stderr]     Checking serde_json v1.0.127
[INFO] [stderr]     Checking garando_errors v0.1.0
[INFO] [stderr]     Checking garando_syntax v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::ext`
[INFO] [stdout]   --> src/ext/build.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub use crate::ext;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parse`
[INFO] [stdout]   --> src/ext/build.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub use crate::parse;
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ext`
[INFO] [stdout]   --> src/ext/build.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub use crate::ext;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::parse`
[INFO] [stdout]   --> src/ext/build.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub use crate::parse;
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sp_lhs`
[INFO] [stdout]    --> src/codemap.rs:499:27
[INFO] [stdout]     |
[INFO] [stdout] 499 |     fn merge_spans(&self, sp_lhs: Span, sp_rhs: Span) -> Option<Span> {
[INFO] [stdout]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sp_lhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sp_rhs`
[INFO] [stdout]    --> src/codemap.rs:499:41
[INFO] [stdout]     |
[INFO] [stdout] 499 |     fn merge_spans(&self, sp_lhs: Span, sp_rhs: Span) -> Option<Span> {
[INFO] [stdout]     |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sp_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sp_lhs`
[INFO] [stdout]    --> src/codemap.rs:499:27
[INFO] [stdout]     |
[INFO] [stdout] 499 |     fn merge_spans(&self, sp_lhs: Span, sp_rhs: Span) -> Option<Span> {
[INFO] [stdout]     |                           ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sp_lhs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sp_rhs`
[INFO] [stdout]    --> src/codemap.rs:499:41
[INFO] [stdout]     |
[INFO] [stdout] 499 |     fn merge_spans(&self, sp_lhs: Span, sp_rhs: Span) -> Option<Span> {
[INFO] [stdout]     |                                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sp_rhs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `finish` is never used
[INFO] [stdout]   --> src/rustc_data_structures/stable_hasher.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub trait StableHasherResult: Sized {
[INFO] [stdout]    |           ------------------ associated function in this trait
[INFO] [stdout] 45 |     fn finish(hasher: StableHasher<Self>) -> Self;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `CodeMapExtension` is never used
[INFO] [stdout]    --> src/codemap.rs:772:11
[INFO] [stdout]     |
[INFO] [stdout] 772 |     trait CodeMapExtension {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&Box<[T]> as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<Box<[T]> as IntoIterator>::into_iter` in Rust 2024
[INFO] [stdout]    --> src/ptr.rs:210:18
[INFO] [stdout]     |
[INFO] [stdout] 210 |         self.ptr.into_iter()
[INFO] [stdout]     |                  ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: `#[warn(boxed_slice_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 210 |         self.ptr.iter()
[INFO] [stdout]     |                  ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 210 |         IntoIterator::into_iter(self.ptr)
[INFO] [stdout]     |         ++++++++++++++++++++++++        ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:231:35
[INFO] [stdout]     |
[INFO] [stdout] 231 |     walk_list!(visitor, visit_ty, &local.ty);
[INFO] [stdout]     |                                   ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:232:37
[INFO] [stdout]     |
[INFO] [stdout] 232 |     walk_list!(visitor, visit_expr, &local.init);
[INFO] [stdout]     |                                     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:317:50
[INFO] [stdout]     |
[INFO] [stdout] 317 |             walk_list!(visitor, visit_trait_ref, opt_trait_reference);
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:368:37
[INFO] [stdout]     |
[INFO] [stdout] 368 |     walk_list!(visitor, visit_expr, &variant.node.disr_expr);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:377:49
[INFO] [stdout]     |
[INFO] [stdout] 377 |             walk_list!(visitor, visit_lifetime, opt_lifetime);
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:448:43
[INFO] [stdout]     |
[INFO] [stdout] 448 |             walk_list!(visitor, visit_ty, &data.output);
[INFO] [stdout]     |                                           ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:486:44
[INFO] [stdout]     |
[INFO] [stdout] 486 |             walk_list!(visitor, visit_pat, optional_subpattern);
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:496:44
[INFO] [stdout]     |
[INFO] [stdout] 496 |             walk_list!(visitor, visit_pat, slice_pattern);
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:533:39
[INFO] [stdout]     |
[INFO] [stdout] 533 |         walk_list!(visitor, visit_ty, &param.default);
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:617:45
[INFO] [stdout]     |
[INFO] [stdout] 617 |             walk_list!(visitor, visit_expr, default);
[INFO] [stdout]     |                                             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:633:43
[INFO] [stdout]     |
[INFO] [stdout] 633 |             walk_list!(visitor, visit_ty, default);
[INFO] [stdout]     |                                           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:727:45
[INFO] [stdout]     |
[INFO] [stdout] 727 |             walk_list!(visitor, visit_expr, optional_base);
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:756:45
[INFO] [stdout]     |
[INFO] [stdout] 756 |             walk_list!(visitor, visit_expr, optional_else);
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:767:45
[INFO] [stdout]     |
[INFO] [stdout] 767 |             walk_list!(visitor, visit_expr, optional_else);
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:816:45
[INFO] [stdout]     |
[INFO] [stdout] 816 |             walk_list!(visitor, visit_expr, start);
[INFO] [stdout]     |                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:817:45
[INFO] [stdout]     |
[INFO] [stdout] 817 |             walk_list!(visitor, visit_expr, end);
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:827:45
[INFO] [stdout]     |
[INFO] [stdout] 827 |             walk_list!(visitor, visit_expr, opt_expr);
[INFO] [stdout]     |                                             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:833:45
[INFO] [stdout]     |
[INFO] [stdout] 833 |             walk_list!(visitor, visit_expr, optional_expression);
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:854:37
[INFO] [stdout]     |
[INFO] [stdout] 854 |     walk_list!(visitor, visit_expr, &arm.guard);
[INFO] [stdout]     |                                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `finish` is never used
[INFO] [stdout]   --> src/rustc_data_structures/stable_hasher.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub trait StableHasherResult: Sized {
[INFO] [stdout]    |           ------------------ associated function in this trait
[INFO] [stdout] 45 |     fn finish(hasher: StableHasher<Self>) -> Self;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&Box<[T]> as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<Box<[T]> as IntoIterator>::into_iter` in Rust 2024
[INFO] [stdout]    --> src/ptr.rs:210:18
[INFO] [stdout]     |
[INFO] [stdout] 210 |         self.ptr.into_iter()
[INFO] [stdout]     |                  ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: `#[warn(boxed_slice_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 210 |         self.ptr.iter()
[INFO] [stdout]     |                  ~~~~
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 210 |         IntoIterator::into_iter(self.ptr)
[INFO] [stdout]     |         ++++++++++++++++++++++++        ~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:231:35
[INFO] [stdout]     |
[INFO] [stdout] 231 |     walk_list!(visitor, visit_ty, &local.ty);
[INFO] [stdout]     |                                   ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:232:37
[INFO] [stdout]     |
[INFO] [stdout] 232 |     walk_list!(visitor, visit_expr, &local.init);
[INFO] [stdout]     |                                     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:317:50
[INFO] [stdout]     |
[INFO] [stdout] 317 |             walk_list!(visitor, visit_trait_ref, opt_trait_reference);
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:368:37
[INFO] [stdout]     |
[INFO] [stdout] 368 |     walk_list!(visitor, visit_expr, &variant.node.disr_expr);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:377:49
[INFO] [stdout]     |
[INFO] [stdout] 377 |             walk_list!(visitor, visit_lifetime, opt_lifetime);
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:448:43
[INFO] [stdout]     |
[INFO] [stdout] 448 |             walk_list!(visitor, visit_ty, &data.output);
[INFO] [stdout]     |                                           ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:486:44
[INFO] [stdout]     |
[INFO] [stdout] 486 |             walk_list!(visitor, visit_pat, optional_subpattern);
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:496:44
[INFO] [stdout]     |
[INFO] [stdout] 496 |             walk_list!(visitor, visit_pat, slice_pattern);
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:533:39
[INFO] [stdout]     |
[INFO] [stdout] 533 |         walk_list!(visitor, visit_ty, &param.default);
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:617:45
[INFO] [stdout]     |
[INFO] [stdout] 617 |             walk_list!(visitor, visit_expr, default);
[INFO] [stdout]     |                                             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:633:43
[INFO] [stdout]     |
[INFO] [stdout] 633 |             walk_list!(visitor, visit_ty, default);
[INFO] [stdout]     |                                           ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:727:45
[INFO] [stdout]     |
[INFO] [stdout] 727 |             walk_list!(visitor, visit_expr, optional_base);
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:756:45
[INFO] [stdout]     |
[INFO] [stdout] 756 |             walk_list!(visitor, visit_expr, optional_else);
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:767:45
[INFO] [stdout]     |
[INFO] [stdout] 767 |             walk_list!(visitor, visit_expr, optional_else);
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:816:45
[INFO] [stdout]     |
[INFO] [stdout] 816 |             walk_list!(visitor, visit_expr, start);
[INFO] [stdout]     |                                             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:817:45
[INFO] [stdout]     |
[INFO] [stdout] 817 |             walk_list!(visitor, visit_expr, end);
[INFO] [stdout]     |                                             ^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:827:45
[INFO] [stdout]     |
[INFO] [stdout] 827 |             walk_list!(visitor, visit_expr, opt_expr);
[INFO] [stdout]     |                                             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:833:45
[INFO] [stdout]     |
[INFO] [stdout] 833 |             walk_list!(visitor, visit_expr, optional_expression);
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over a `&Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/visit.rs:854:37
[INFO] [stdout]     |
[INFO] [stdout] 854 |     walk_list!(visitor, visit_expr, &arm.guard);
[INFO] [stdout]     |                                     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 181 |         while let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 181 |         if let Some() =  in $list {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.91s
[INFO] running `Command { std: "docker" "inspect" "7b9d27ce69bc59381b19b64504b73cdc74711ad1fbfee1a19b3a35f451dd07ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b9d27ce69bc59381b19b64504b73cdc74711ad1fbfee1a19b3a35f451dd07ca", kill_on_drop: false }`
[INFO] [stdout] 7b9d27ce69bc59381b19b64504b73cdc74711ad1fbfee1a19b3a35f451dd07ca