[INFO] cloning repository https://github.com/FuegoFro/advent_of_code
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FuegoFro/advent_of_code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuegoFro%2Fadvent_of_code", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuegoFro%2Fadvent_of_code'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7acd27857e4929633b0a4bd19ebce597673a20e
[INFO] checking FuegoFro/advent_of_code against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuegoFro%2Fadvent_of_code" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/FuegoFro/advent_of_code
[INFO] finished tweaking git repo https://github.com/FuegoFro/advent_of_code
[INFO] tweaked toml for git repo https://github.com/FuegoFro/advent_of_code written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FuegoFro/advent_of_code on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FuegoFro/advent_of_code 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/carbotaniuman/auto_ops.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitreader v0.3.6
[INFO] [stderr]   Downloaded priority-queue v1.3.0
[INFO] [stderr]   Downloaded recap-derive v0.1.2
[INFO] [stderr]   Downloaded lalrpop-util v0.19.8
[INFO] [stderr]   Downloaded levenberg-marquardt v0.13.1
[INFO] [stderr]   Downloaded impl_ops v0.1.1
[INFO] [stderr]   Downloaded tuple v0.5.1
[INFO] [stderr]   Downloaded binary-search v0.1.2
[INFO] [stderr]   Downloaded wide v0.7.13
[INFO] [stderr]   Downloaded ena v0.14.0
[INFO] [stderr]   Downloaded skiplist v0.4.0
[INFO] [stderr]   Downloaded pico-args v0.4.2
[INFO] [stderr]   Downloaded nalgebra v0.32.3
[INFO] [stderr]   Downloaded lalrpop v0.19.8
[INFO] [stderr]   Downloaded recap v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f715711fd6212693b0943c11898043ceb2771702a626677d379851531986ce49
[INFO] running `Command { std: "docker" "start" "-a" "f715711fd6212693b0943c11898043ceb2771702a626677d379851531986ce49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f715711fd6212693b0943c11898043ceb2771702a626677d379851531986ce49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f715711fd6212693b0943c11898043ceb2771702a626677d379851531986ce49", kill_on_drop: false }`
[INFO] [stdout] f715711fd6212693b0943c11898043ceb2771702a626677d379851531986ce49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 446c8893bac6095006679d6f00a451534d632f51966f2c3acd5151fbfe39b1d6
[INFO] running `Command { std: "docker" "start" "-a" "446c8893bac6095006679d6f00a451534d632f51966f2c3acd5151fbfe39b1d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking auto_ops v0.3.0 (https://github.com/carbotaniuman/auto_ops.git?rev=7a9192f0a4b3e5ac7911db0cce5aeb74a15ca942#7a9192f0)
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]     Checking bytemuck v1.14.0
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling priority-queue v1.3.0
[INFO] [stderr]     Checking safe_arch v0.7.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]     Checking wide v0.7.13
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling levenberg-marquardt v0.13.1
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling string_cache v0.8.4
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking lalrpop-util v0.19.8
[INFO] [stderr]     Checking bitreader v0.3.6
[INFO] [stderr]     Checking impl_ops v0.1.1
[INFO] [stderr]    Compiling petgraph v0.6.2
[INFO] [stderr]     Checking binary-search v0.1.2
[INFO] [stderr]     Checking simba v0.8.1
[INFO] [stderr]     Checking skiplist v0.4.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.216
[INFO] [stderr]    Compiling lalrpop v0.19.8
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling recap-derive v0.1.2
[INFO] [stderr]    Compiling nalgebra-macros v0.2.1
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking nalgebra v0.32.3
[INFO] [stderr]     Checking serde_json v1.0.133
[INFO] [stderr]     Checking envy v0.4.2
[INFO] [stderr]     Checking tuple v0.5.1
[INFO] [stderr]     Checking recap v0.1.2
[INFO] [stderr]     Checking util v0.1.0 (/opt/rustwide/workdir/util)
[INFO] [stderr]     Checking y2019 v0.1.0 (/opt/rustwide/workdir/y2019)
[INFO] [stderr]     Checking y2024 v0.1.0 (/opt/rustwide/workdir/y2024)
[INFO] [stdout] warning: unused variable: `run_length`
[INFO] [stdout]   --> y2024/src/d09/mod.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let run_length = input
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_run_length`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `len` is never read
[INFO] [stdout]   --> y2024/src/d09/mod.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Empty { len: u32 },
[INFO] [stdout]    |     -----   ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `len` and `id` are never read
[INFO] [stdout]   --> y2024/src/d09/mod.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     File { len: u32, id: usize },
[INFO] [stdout]    |     ----   ^^^       ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `run_length`
[INFO] [stdout]   --> y2024/src/d09/mod.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let run_length = input
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_run_length`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `len` is never read
[INFO] [stdout]   --> y2024/src/d09/mod.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Empty { len: u32 },
[INFO] [stdout]    |     -----   ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `len` and `id` are never read
[INFO] [stdout]   --> y2024/src/d09/mod.rs:66:12
[INFO] [stdout]    |
[INFO] [stdout] 66 |     File { len: u32, id: usize },
[INFO] [stdout]    |     ----   ^^^       ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]  --> y2019/src/computer.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(FromPrimitive, Clone, Debug)]
[INFO] [stdout]   |          ^------------
[INFO] [stdout]   |          |
[INFO] [stdout]   |          `FromPrimitive` is not local
[INFO] [stdout]   |          move the `impl` block outside of this constant `_IMPL_NUM_FromPrimitive_FOR_ParameterMode`
[INFO] [stdout] 9 | enum ParameterMode {
[INFO] [stdout]   |      ------------- `ParameterMode` is not local
[INFO] [stdout]   |
[INFO] [stdout]   = note: the derive macro `FromPrimitive` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]   = note: the derive macro `FromPrimitive` may come from an old version of the `num_derive` crate, try updating your dependency with `cargo update -p num_derive`
[INFO] [stdout]   = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]   = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]   = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]   = note: this warning originates in the derive macro `FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> y2019/src/d13/mod.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(FromPrimitive, Clone, Eq, PartialEq)]
[INFO] [stdout]    |          ^------------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `FromPrimitive` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_IMPL_NUM_FromPrimitive_FOR_Tile`
[INFO] [stdout] 11 | enum Tile {
[INFO] [stdout]    |      ---- `Tile` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `FromPrimitive` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `FromPrimitive` may come from an old version of the `num_derive` crate, try updating your dependency with `cargo update -p num_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> y2019/src/d15/mod.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug, FromPrimitive, Eq, PartialEq, Copy, Clone)]
[INFO] [stdout]    |                 ^------------
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 `FromPrimitive` is not local
[INFO] [stdout]    |                 move the `impl` block outside of this constant `_IMPL_NUM_FromPrimitive_FOR_Tile`
[INFO] [stdout] 14 | enum Tile {
[INFO] [stdout]    |      ---- `Tile` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `FromPrimitive` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `FromPrimitive` may come from an old version of the `num_derive` crate, try updating your dependency with `cargo update -p num_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]  --> y2019/src/computer.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(FromPrimitive, Clone, Debug)]
[INFO] [stdout]   |          ^------------
[INFO] [stdout]   |          |
[INFO] [stdout]   |          `FromPrimitive` is not local
[INFO] [stdout]   |          move the `impl` block outside of this constant `_IMPL_NUM_FromPrimitive_FOR_ParameterMode`
[INFO] [stdout] 9 | enum ParameterMode {
[INFO] [stdout]   |      ------------- `ParameterMode` is not local
[INFO] [stdout]   |
[INFO] [stdout]   = note: the derive macro `FromPrimitive` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]   = note: the derive macro `FromPrimitive` may come from an old version of the `num_derive` crate, try updating your dependency with `cargo update -p num_derive`
[INFO] [stdout]   = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]   = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]   = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]   = note: this warning originates in the derive macro `FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> y2019/src/d13/mod.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[derive(FromPrimitive, Clone, Eq, PartialEq)]
[INFO] [stdout]    |          ^------------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `FromPrimitive` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_IMPL_NUM_FromPrimitive_FOR_Tile`
[INFO] [stdout] 11 | enum Tile {
[INFO] [stdout]    |      ---- `Tile` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `FromPrimitive` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `FromPrimitive` may come from an old version of the `num_derive` crate, try updating your dependency with `cargo update -p num_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> y2019/src/d15/mod.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[derive(Debug, FromPrimitive, Eq, PartialEq, Copy, Clone)]
[INFO] [stdout]    |                 ^------------
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 `FromPrimitive` is not local
[INFO] [stdout]    |                 move the `impl` block outside of this constant `_IMPL_NUM_FromPrimitive_FOR_Tile`
[INFO] [stdout] 14 | enum Tile {
[INFO] [stdout]    |      ---- `Tile` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `FromPrimitive` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `FromPrimitive` may come from an old version of the `num_derive` crate, try updating your dependency with `cargo update -p num_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking y2021 v0.1.0 (/opt/rustwide/workdir/y2021)
[INFO] [stderr]     Checking y2022 v0.1.0 (/opt/rustwide/workdir/y2022)
[INFO] [stderr]    Compiling y2020 v0.1.0 (/opt/rustwide/workdir/y2020)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> y2021/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_methods)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> y2021/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_methods)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `array_methods` has been stable since 1.77.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> y2021/src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `array_methods` has been stable since 1.77.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> y2021/src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> y2022/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(variant_count)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> y2022/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(variant_count)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `y2021` (bin "y2021") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `y2022` (bin "y2022") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `y2021` (bin "y2021" test) due to 1 previous error; 1 warning emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `y2022` (bin "y2022" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "446c8893bac6095006679d6f00a451534d632f51966f2c3acd5151fbfe39b1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "446c8893bac6095006679d6f00a451534d632f51966f2c3acd5151fbfe39b1d6", kill_on_drop: false }`
[INFO] [stdout] 446c8893bac6095006679d6f00a451534d632f51966f2c3acd5151fbfe39b1d6
