[INFO] cloning repository https://github.com/MxmUrw/categories
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MxmUrw/categories" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMxmUrw%2Fcategories", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMxmUrw%2Fcategories'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85ab0cb1b8afcd0ad35041d242c6366381695146
[INFO] checking MxmUrw/categories against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMxmUrw%2Fcategories" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/MxmUrw/categories
[INFO] finished tweaking git repo https://github.com/MxmUrw/categories
[INFO] tweaked toml for git repo https://github.com/MxmUrw/categories written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MxmUrw/categories on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MxmUrw/categories 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e8d90750f429670aa502a77c0ba6a0143dea14b801bbb20861869cc3909811d
[INFO] running `Command { std: "docker" "start" "-a" "6e8d90750f429670aa502a77c0ba6a0143dea14b801bbb20861869cc3909811d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e8d90750f429670aa502a77c0ba6a0143dea14b801bbb20861869cc3909811d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e8d90750f429670aa502a77c0ba6a0143dea14b801bbb20861869cc3909811d", kill_on_drop: false }`
[INFO] [stdout] 6e8d90750f429670aa502a77c0ba6a0143dea14b801bbb20861869cc3909811d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e26c0f22f2d08853209a4c8a406c68973ebbc85d3ad9238a6d3be666c5f3c563
[INFO] running `Command { std: "docker" "start" "-a" "e26c0f22f2d08853209a4c8a406c68973ebbc85d3ad9238a6d3be666c5f3c563", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]     Checking pin-project-lite v0.2.15
[INFO] [stderr]    Compiling frunk_core v0.4.3
[INFO] [stderr]    Compiling anyhow v1.0.93
[INFO] [stderr]     Checking tokio v1.41.1
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.87
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.1.3
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling frunk_derives v0.4.3
[INFO] [stderr]    Compiling frunk_proc_macros v0.1.3
[INFO] [stderr]     Checking frunk v0.4.3
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking categories v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the usage of Script Group `Greek` in this crate consists solely of mixed script confusables
[INFO] [stdout]   --> src/examples/state_machine.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 |     | δ (state: &mut S) (input : I) : O
[INFO] [stdout]    |       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the usage includes 'δ' (U+03B4)
[INFO] [stdout]    = note: please recheck to make sure their usages are indeed what you want
[INFO] [stdout]    = note: `#[warn(mixed_script_confusables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Deref`
[INFO] [stdout]  --> src/lib.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::{future::{self, Future}, ops::Deref, pin::Pin, time::Duration};
[INFO] [stdout]   |                                   ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `define`
[INFO] [stdout]  --> src/experimental/laws.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{declare_many, define};
[INFO] [stdout]   |                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `kani`
[INFO] [stdout]   --> src/experimental/laws2.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(kani)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(kani)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(kani)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::define_many`
[INFO] [stdout]  --> src/examples/state_machine.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::define_many;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::type_macros::*`
[INFO] [stdout]  --> src/macros.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::type_macros::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the usage of Script Group `Greek` in this crate consists solely of mixed script confusables
[INFO] [stdout]   --> src/examples/state_machine.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 |     | δ (state: &mut S) (input : I) : O
[INFO] [stdout]    |       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the usage includes 'δ' (U+03B4)
[INFO] [stdout]    = note: please recheck to make sure their usages are indeed what you want
[INFO] [stdout]    = note: `#[warn(mixed_script_confusables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Deref`
[INFO] [stdout]  --> src/lib.rs:9:35
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::{future::{self, Future}, ops::Deref, pin::Pin, time::Duration};
[INFO] [stdout]   |                                   ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `define`
[INFO] [stdout]  --> src/experimental/laws.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{declare_many, define};
[INFO] [stdout]   |                           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `kani`
[INFO] [stdout]   --> src/experimental/laws2.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(kani)]
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(kani)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(kani)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::define_many`
[INFO] [stdout]  --> src/examples/state_machine.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::define_many;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::type_macros::*`
[INFO] [stdout]  --> src/macros.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::type_macros::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: impl trait in impl method signature does not match trait method signature
[INFO] [stdout]    --> src/macros.rs:238:109
[INFO] [stdout]     |
[INFO] [stdout] 238 |           impl Fn($head$(<$arg>),*::of<make_type_top!($($inside)+)>) -> make_type_top!($($rest)+) + 'static + Copy
[INFO] [stdout]     |                                                                                                               ^^^^ this bound is stronger than that defined on the trait
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/core.rs:33:84
[INFO] [stdout]     |
[INFO] [stdout]  33 |       fn funmap<A: 'a, B: 'a>(f: Self::of<impl Fn(A) -> B + 'a + 'static + Copy>) -> impl Fn(Self::of<A>) -> Self::of<B>;
[INFO] [stdout]     |                                                                                      ----------------------------------- return type from trait method defined here
[INFO] [stdout] ...
[INFO] [stdout] 125 | /     define_many!
[INFO] [stdout] 126 | |     {
[INFO] [stdout] 127 | |         [ pure for (A : 'a). (a : A) : Self[A]
[INFO] [stdout] 128 | |         = Some(a)
[INFO] [stdout] ...   |
[INFO] [stdout] 135 | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate
[INFO] [stdout]     = note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information
[INFO] [stdout]     = note: `#[warn(refining_impl_trait_reachable)]` (part of `#[warn(refining_impl_trait)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `make_type_gen` which comes from the expansion of the macro `define_many` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: replace the return type so that it matches the trait
[INFO] [stdout]     |
[INFO] [stdout] 238 -         impl Fn($head$(<$arg>),*::of<make_type_top!($($inside)+)>) -> make_type_top!($($rest)+) + 'static + Copy
[INFO] [stdout] 238 +         impl Fn(<Self as core::Functor<'a>>::of<A>) -> <Self as core::Functor<'a>>::of<B>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/experimental/categories3.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut y = 0;
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xs`
[INFO] [stdout]   --> src/experimental/categories3.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | const fn comb(xs: &[u8]) -> u8 {
[INFO] [stdout]    |               ^^ help: if this is intentional, prefix it with an underscore: `_xs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: impl trait in impl method signature does not match trait method signature
[INFO] [stdout]    --> src/macros.rs:238:109
[INFO] [stdout]     |
[INFO] [stdout] 238 |           impl Fn($head$(<$arg>),*::of<make_type_top!($($inside)+)>) -> make_type_top!($($rest)+) + 'static + Copy
[INFO] [stdout]     |                                                                                                               ^^^^ this bound is stronger than that defined on the trait
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/core.rs:33:84
[INFO] [stdout]     |
[INFO] [stdout]  33 |       fn funmap<A: 'a, B: 'a>(f: Self::of<impl Fn(A) -> B + 'a + 'static + Copy>) -> impl Fn(Self::of<A>) -> Self::of<B>;
[INFO] [stdout]     |                                                                                      ----------------------------------- return type from trait method defined here
[INFO] [stdout] ...
[INFO] [stdout] 125 | /     define_many!
[INFO] [stdout] 126 | |     {
[INFO] [stdout] 127 | |         [ pure for (A : 'a). (a : A) : Self[A]
[INFO] [stdout] 128 | |         = Some(a)
[INFO] [stdout] ...   |
[INFO] [stdout] 135 | |     }
[INFO] [stdout]     | |_____- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate
[INFO] [stdout]     = note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information
[INFO] [stdout]     = note: `#[warn(refining_impl_trait_reachable)]` (part of `#[warn(refining_impl_trait)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `make_type_gen` which comes from the expansion of the macro `define_many` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: replace the return type so that it matches the trait
[INFO] [stdout]     |
[INFO] [stdout] 238 -         impl Fn($head$(<$arg>),*::of<make_type_top!($($inside)+)>) -> make_type_top!($($rest)+) + 'static + Copy
[INFO] [stdout] 238 +         impl Fn(<Self as core::Functor<'a>>::of<A>) -> <Self as core::Functor<'a>>::of<B>
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/core.rs:213:28
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn foldr<A: 'a, B: 'a>(f: impl Fn(A,B) -> B, b: B, ta: Self::of<A>) -> B {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/core.rs:213:50
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn foldr<A: 'a, B: 'a>(f: impl Fn(A,B) -> B, b: B, ta: Self::of<A>) -> B {
[INFO] [stdout]     |                                                  ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ta`
[INFO] [stdout]    --> src/core.rs:213:56
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn foldr<A: 'a, B: 'a>(f: impl Fn(A,B) -> B, b: B, ta: Self::of<A>) -> B {
[INFO] [stdout]     |                                                        ^^ help: if this is intentional, prefix it with an underscore: `_ta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/type_macros.rs:275:13
[INFO] [stdout]     |
[INFO] [stdout] 275 |         let x: eval_type!(Option i8 + i8) = Either::Left(Some(0i8));
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/lib.rs:84:10
[INFO] [stdout]    |
[INFO] [stdout] 84 |         |a| todo!()
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/lib.rs:83:39
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn funmap<A: 'static, B: 'static>(f: Self::of<impl Fn(A) -> B + 'static + 'static + Copy>) -> impl Fn(Self::of<A>) -> Self::of<B> {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `with` is never constructed
[INFO] [stdout]    --> src/lib.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout] 148 | struct with 
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `retry` is never used
[INFO] [stdout]    --> src/lib.rs:153:4
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn retry<M: TaskMonad, A: 'static>
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mytest` is never used
[INFO] [stdout]    --> src/lib.rs:175:4
[INFO] [stdout]     |
[INFO] [stdout] 175 | fn mytest<M: TaskMonad>() -> M::of<i32>
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IsCategory` is never used
[INFO] [stdout]  --> src/experimental/categories.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | trait IsCategory 
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SymSet` is never constructed
[INFO] [stdout]   --> src/experimental/categories.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct SymSet {}
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BiFiber` is never used
[INFO] [stdout]   --> src/experimental/categories.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | trait BiFiber<Symbol: ?Sized>
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Arrow` is never used
[INFO] [stdout]   --> src/experimental/categories.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | trait Arrow<A,B>
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `comb` is never used
[INFO] [stdout]   --> src/experimental/categories3.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 | const fn comb(xs: &[u8]) -> u8 {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Monoid` is never used
[INFO] [stdout]  --> src/experimental/monoidal_traits.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | trait Monoid
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Convert` is never used
[INFO] [stdout]   --> src/experimental/monoidal_traits.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | trait Convert
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]   --> src/experimental/monoidal_traits.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | trait Trait
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SymMonoid` is never constructed
[INFO] [stdout]   --> src/experimental/monoidal_traits.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct SymMonoid;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]  --> src/experimental/monoidal_traits2.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | trait Trait
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/experimental/monoidal_traits2.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 | const fn run(a: u8, b: u8) -> u8 {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SymMonoid` is never constructed
[INFO] [stdout]   --> src/experimental/laws.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct SymMonoid {}
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FinMon` is never constructed
[INFO] [stdout]   --> src/experimental/laws.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct FinMon<const size: u64> {}
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Fibered` is never used
[INFO] [stdout]  --> src/examples/state_machine.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait Fibered
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `StateMachined` is never used
[INFO] [stdout]   --> src/examples/state_machine.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait StateMachined
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `my_fun` is never used
[INFO] [stdout]    --> src/core.rs:229:12
[INFO] [stdout]     |
[INFO] [stdout] 229 |     pub fn my_fun
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Either` is never used
[INFO] [stdout]   --> src/type_macros.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum Either<A,B> {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testf` is never used
[INFO] [stdout]    --> src/type_macros.rs:272:8
[INFO] [stdout]     |
[INFO] [stdout] 272 |     fn testf()
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `throwError` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn throwError<A>(e : E) -> Self::of<A>;
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to snake case: `throw_error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `catchError` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn catchError<A>(action: Self::of<A>, handler: impl FnOnce(E) -> Self::of<A> + 'static) -> Self::of<A>;
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to snake case: `catch_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `x` should have an upper case name
[INFO] [stdout]  --> src/experimental/categories4.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 |     const x: &dyn Fn(u8) -> u8 = &comp(&|a| a + 1, &|b| b * 2);
[INFO] [stdout]   |           ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case (notice the capitalization)
[INFO] [stdout]   |
[INFO] [stdout] 9 -     const x: &dyn Fn(u8) -> u8 = &comp(&|a| a + 1, &|b| b * 2);
[INFO] [stdout] 9 +     const X: &dyn Fn(u8) -> u8 = &comp(&|a| a + 1, &|b| b * 2);
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: const parameter `size` should have an upper case name
[INFO] [stdout]   --> src/experimental/laws.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct FinMon<const size: u64> {}
[INFO] [stdout]    |                     ^^^^ help: convert the identifier to upper case: `SIZE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: const parameter `size` should have an upper case name
[INFO] [stdout]   --> src/experimental/laws.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl<const size: u64> Monoid<u64> for FinMon<size>
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 44 - impl<const size: u64> Monoid<u64> for FinMon<size>
[INFO] [stdout] 44 + impl<const SIZE: u64> Monoid<u64> for FinMon<size>
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mapM` should have a snake case name
[INFO] [stdout]    --> src/core.rs:289:11
[INFO] [stdout]     |
[INFO] [stdout] 289 |         [ mapM for 'a (A B : 'a + Copy) (M : Monad<'a>) (As : Iterator<Item=A>). (f : A -> M[B]) (xs: As) : M[Vec B]
[INFO] [stdout]     |           ^^^^ help: convert the identifier to snake case: `map_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `type_alias_impl_trait` is declared but not used
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `impl_trait_in_assoc_type` is declared but not used
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(impl_trait_in_assoc_type)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `const_for` is declared but not used
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_for)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/experimental/categories3.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut y = 0;
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `xs`
[INFO] [stdout]   --> src/experimental/categories3.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | const fn comb(xs: &[u8]) -> u8 {
[INFO] [stdout]    |               ^^ help: if this is intentional, prefix it with an underscore: `_xs`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/core.rs:213:28
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn foldr<A: 'a, B: 'a>(f: impl Fn(A,B) -> B, b: B, ta: Self::of<A>) -> B {
[INFO] [stdout]     |                            ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/core.rs:213:50
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn foldr<A: 'a, B: 'a>(f: impl Fn(A,B) -> B, b: B, ta: Self::of<A>) -> B {
[INFO] [stdout]     |                                                  ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ta`
[INFO] [stdout]    --> src/core.rs:213:56
[INFO] [stdout]     |
[INFO] [stdout] 213 |     fn foldr<A: 'a, B: 'a>(f: impl Fn(A,B) -> B, b: B, ta: Self::of<A>) -> B {
[INFO] [stdout]     |                                                        ^^ help: if this is intentional, prefix it with an underscore: `_ta`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/type_macros.rs:275:13
[INFO] [stdout]     |
[INFO] [stdout] 275 |         let x: eval_type!(Option i8 + i8) = Either::Left(Some(0i8));
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/lib.rs:84:10
[INFO] [stdout]    |
[INFO] [stdout] 84 |         |a| todo!()
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/lib.rs:83:39
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn funmap<A: 'static, B: 'static>(f: Self::of<impl Fn(A) -> B + 'static + 'static + Copy>) -> impl Fn(Self::of<A>) -> Self::of<B> {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `with` is never constructed
[INFO] [stdout]    --> src/lib.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout] 148 | struct with 
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `retry` is never used
[INFO] [stdout]    --> src/lib.rs:153:4
[INFO] [stdout]     |
[INFO] [stdout] 153 | fn retry<M: TaskMonad, A: 'static>
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mytest` is never used
[INFO] [stdout]    --> src/lib.rs:175:4
[INFO] [stdout]     |
[INFO] [stdout] 175 | fn mytest<M: TaskMonad>() -> M::of<i32>
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IsCategory` is never used
[INFO] [stdout]  --> src/experimental/categories.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | trait IsCategory 
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SymSet` is never constructed
[INFO] [stdout]   --> src/experimental/categories.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct SymSet {}
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `BiFiber` is never used
[INFO] [stdout]   --> src/experimental/categories.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | trait BiFiber<Symbol: ?Sized>
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Arrow` is never used
[INFO] [stdout]   --> src/experimental/categories.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | trait Arrow<A,B>
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `comb` is never used
[INFO] [stdout]   --> src/experimental/categories3.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 | const fn comb(xs: &[u8]) -> u8 {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Monoid` is never used
[INFO] [stdout]  --> src/experimental/monoidal_traits.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | trait Monoid
[INFO] [stdout]   |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Convert` is never used
[INFO] [stdout]   --> src/experimental/monoidal_traits.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | trait Convert
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]   --> src/experimental/monoidal_traits.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | trait Trait
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SymMonoid` is never constructed
[INFO] [stdout]   --> src/experimental/monoidal_traits.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct SymMonoid;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Trait` is never used
[INFO] [stdout]  --> src/experimental/monoidal_traits2.rs:2:7
[INFO] [stdout]   |
[INFO] [stdout] 2 | trait Trait
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/experimental/monoidal_traits2.rs:23:10
[INFO] [stdout]    |
[INFO] [stdout] 23 | const fn run(a: u8, b: u8) -> u8 {
[INFO] [stdout]    |          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SymMonoid` is never constructed
[INFO] [stdout]   --> src/experimental/laws.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct SymMonoid {}
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Fibered` is never used
[INFO] [stdout]  --> src/examples/state_machine.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | trait Fibered
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `StateMachined` is never used
[INFO] [stdout]   --> src/examples/state_machine.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 | trait StateMachined
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `my_fun` is never used
[INFO] [stdout]    --> src/core.rs:229:12
[INFO] [stdout]     |
[INFO] [stdout] 229 |     pub fn my_fun
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Either` is never used
[INFO] [stdout]   --> src/type_macros.rs:31:6
[INFO] [stdout]    |
[INFO] [stdout] 31 | enum Either<A,B> {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `testf` is never used
[INFO] [stdout]    --> src/type_macros.rs:272:8
[INFO] [stdout]     |
[INFO] [stdout] 272 |     fn testf()
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `throwError` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn throwError<A>(e : E) -> Self::of<A>;
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to snake case: `throw_error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `catchError` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn catchError<A>(action: Self::of<A>, handler: impl FnOnce(E) -> Self::of<A> + 'static) -> Self::of<A>;
[INFO] [stdout]    |        ^^^^^^^^^^ help: convert the identifier to snake case: `catch_error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `x` should have an upper case name
[INFO] [stdout]  --> src/experimental/categories4.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 |     const x: &dyn Fn(u8) -> u8 = &comp(&|a| a + 1, &|b| b * 2);
[INFO] [stdout]   |           ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case (notice the capitalization)
[INFO] [stdout]   |
[INFO] [stdout] 9 -     const x: &dyn Fn(u8) -> u8 = &comp(&|a| a + 1, &|b| b * 2);
[INFO] [stdout] 9 +     const X: &dyn Fn(u8) -> u8 = &comp(&|a| a + 1, &|b| b * 2);
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: const parameter `size` should have an upper case name
[INFO] [stdout]   --> src/experimental/laws.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct FinMon<const size: u64> {}
[INFO] [stdout]    |                     ^^^^ help: convert the identifier to upper case: `SIZE`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: const parameter `size` should have an upper case name
[INFO] [stdout]   --> src/experimental/laws.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 | impl<const size: u64> Monoid<u64> for FinMon<size>
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]    |
[INFO] [stdout] 44 - impl<const size: u64> Monoid<u64> for FinMon<size>
[INFO] [stdout] 44 + impl<const SIZE: u64> Monoid<u64> for FinMon<size>
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mapM` should have a snake case name
[INFO] [stdout]    --> src/core.rs:289:11
[INFO] [stdout]     |
[INFO] [stdout] 289 |         [ mapM for 'a (A B : 'a + Copy) (M : Monad<'a>) (As : Iterator<Item=A>). (f : A -> M[B]) (xs: As) : M[Vec B]
[INFO] [stdout]     |           ^^^^ help: convert the identifier to snake case: `map_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `type_alias_impl_trait` is declared but not used
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `impl_trait_in_assoc_type` is declared but not used
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(impl_trait_in_assoc_type)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `const_for` is declared but not used
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_for)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.69s
[INFO] running `Command { std: "docker" "inspect" "e26c0f22f2d08853209a4c8a406c68973ebbc85d3ad9238a6d3be666c5f3c563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e26c0f22f2d08853209a4c8a406c68973ebbc85d3ad9238a6d3be666c5f3c563", kill_on_drop: false }`
[INFO] [stdout] e26c0f22f2d08853209a4c8a406c68973ebbc85d3ad9238a6d3be666c5f3c563
