[INFO] fetching crate stackbt_automata_impl 0.1.2...
[INFO] testing stackbt_automata_impl-0.1.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate stackbt_automata_impl 0.1.2 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate stackbt_automata_impl 0.1.2 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stackbt_automata_impl 0.1.2
[INFO] finished tweaking crates.io crate stackbt_automata_impl 0.1.2
[INFO] tweaked toml for crates.io crate stackbt_automata_impl 0.1.2 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f29f7a8350c2890c1e58d9881a5c7728668f1cee9c0b8e85d07f3228a35c6dd0
[INFO] running `Command { std: "docker" "start" "-a" "f29f7a8350c2890c1e58d9881a5c7728668f1cee9c0b8e85d07f3228a35c6dd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f29f7a8350c2890c1e58d9881a5c7728668f1cee9c0b8e85d07f3228a35c6dd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f29f7a8350c2890c1e58d9881a5c7728668f1cee9c0b8e85d07f3228a35c6dd0", kill_on_drop: false }`
[INFO] [stdout] f29f7a8350c2890c1e58d9881a5c7728668f1cee9c0b8e85d07f3228a35c6dd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d86302f1c229afd10c187480d661fcc207dfa776bfd6bb8f55b311db03e05ae
[INFO] running `Command { std: "docker" "start" "-a" "5d86302f1c229afd10c187480d661fcc207dfa776bfd6bb8f55b311db03e05ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling stackbt_automata_impl v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/ref_state_machine.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn step(self, &Self::Input) -> (Self::Action, Self);
[INFO] [stdout]    |                   ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/internal_state_machine.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn step(&Self::Input, &mut Self::Internal) -> Self::Action;
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Input`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/internal_state_machine.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn step(&Self::Input, &mut Self::Internal) -> Self::Action;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Self::Internal`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/dual_state_machine.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn step(self, &Self::Input, &mut Self::Internal) -> (Self::Action, Self);
[INFO] [stdout]    |                   ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Input`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/dual_state_machine.rs:15:33
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn step(self, &Self::Input, &mut Self::Internal) -> (Self::Action, Self);
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Self::Internal`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/map_wrappers.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn input_transform(&Self::In) -> Self::Out;
[INFO] [stdout]    |                        ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::In`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/map_wrappers.rs:127:25
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn output_transform(Self::In) -> Self::Out;
[INFO] [stdout]     |                         ^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::In`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/map_wrappers.rs:196:15
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn create(&<Self::Creates as Automaton<'k>>::Input) -> Self::Creates;
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &<Self::Creates as Automaton<'k>>::Input`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/automaton.rs:94:34
[INFO] [stdout]    |
[INFO] [stdout] 94 | impl<'k, I, A> Automaton<'k> for FnMut(&I) -> A + 'k where 
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 94 - impl<'k, I, A> Automaton<'k> for FnMut(&I) -> A + 'k where 
[INFO] [stdout] 94 + impl<'k, I, A> Automaton<'k> for dyn FnMut(&I) -> A + 'k where 
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/automaton.rs:39:42
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn as_fnmut<'t>(&'t mut self) -> Box<FnMut(&Self::Input)->Self::Action+'t> where 
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 -     fn as_fnmut<'t>(&'t mut self) -> Box<FnMut(&Self::Input)->Self::Action+'t> where 
[INFO] [stdout] 39 +     fn as_fnmut<'t>(&'t mut self) -> Box<dyn FnMut(&Self::Input)->Self::Action+'t> where 
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/automaton.rs:50:32
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn into_fnmut(self) -> Box<FnMut(&Self::Input) -> Self::Action + 'k> where 
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 -     fn into_fnmut(self) -> Box<FnMut(&Self::Input) -> Self::Action + 'k> where 
[INFO] [stdout] 50 +     fn into_fnmut(self) -> Box<dyn FnMut(&Self::Input) -> Self::Action + 'k> where 
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/automaton.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 |       fn boxed_into_fnmut(self: Box<Self>) -> Box<FnMut(&Self::Input) -> 
[INFO] [stdout]    |  _________________________________________________^
[INFO] [stdout] 72 | |         Self::Action + 'k> where 
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 71 ~     fn boxed_into_fnmut(self: Box<Self>) -> Box<dyn FnMut(&Self::Input) -> 
[INFO] [stdout] 72 ~         Self::Action + 'k> where 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/automaton.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let mut this = self;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "5d86302f1c229afd10c187480d661fcc207dfa776bfd6bb8f55b311db03e05ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d86302f1c229afd10c187480d661fcc207dfa776bfd6bb8f55b311db03e05ae", kill_on_drop: false }`
[INFO] [stdout] 5d86302f1c229afd10c187480d661fcc207dfa776bfd6bb8f55b311db03e05ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5114d980f3038cba98ff9914d532449c857c209133031471c7427032cfdf24b
[INFO] running `Command { std: "docker" "start" "-a" "b5114d980f3038cba98ff9914d532449c857c209133031471c7427032cfdf24b", kill_on_drop: false }`
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/ref_state_machine.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn step(self, &Self::Input) -> (Self::Action, Self);
[INFO] [stdout]    |                   ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/internal_state_machine.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn step(&Self::Input, &mut Self::Internal) -> Self::Action;
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Input`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/internal_state_machine.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn step(&Self::Input, &mut Self::Internal) -> Self::Action;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Self::Internal`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/dual_state_machine.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn step(self, &Self::Input, &mut Self::Internal) -> (Self::Action, Self);
[INFO] [stdout]    |                   ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Input`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/dual_state_machine.rs:15:33
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn step(self, &Self::Input, &mut Self::Internal) -> (Self::Action, Self);
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Self::Internal`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/map_wrappers.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn input_transform(&Self::In) -> Self::Out;
[INFO] [stdout]    |                        ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::In`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/map_wrappers.rs:127:25
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn output_transform(Self::In) -> Self::Out;
[INFO] [stdout]     |                         ^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::In`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/map_wrappers.rs:196:15
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn create(&<Self::Creates as Automaton<'k>>::Input) -> Self::Creates;
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &<Self::Creates as Automaton<'k>>::Input`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/automaton.rs:94:34
[INFO] [stdout]    |
[INFO] [stdout] 94 | impl<'k, I, A> Automaton<'k> for FnMut(&I) -> A + 'k where 
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 94 - impl<'k, I, A> Automaton<'k> for FnMut(&I) -> A + 'k where 
[INFO] [stdout] 94 + impl<'k, I, A> Automaton<'k> for dyn FnMut(&I) -> A + 'k where 
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/automaton.rs:39:42
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn as_fnmut<'t>(&'t mut self) -> Box<FnMut(&Self::Input)->Self::Action+'t> where 
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 -     fn as_fnmut<'t>(&'t mut self) -> Box<FnMut(&Self::Input)->Self::Action+'t> where 
[INFO] [stdout] 39 +     fn as_fnmut<'t>(&'t mut self) -> Box<dyn FnMut(&Self::Input)->Self::Action+'t> where 
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/automaton.rs:50:32
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn into_fnmut(self) -> Box<FnMut(&Self::Input) -> Self::Action + 'k> where 
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 -     fn into_fnmut(self) -> Box<FnMut(&Self::Input) -> Self::Action + 'k> where 
[INFO] [stdout] 50 +     fn into_fnmut(self) -> Box<dyn FnMut(&Self::Input) -> Self::Action + 'k> where 
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stackbt_automata_impl v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/automaton.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 |       fn boxed_into_fnmut(self: Box<Self>) -> Box<FnMut(&Self::Input) -> 
[INFO] [stdout]    |  _________________________________________________^
[INFO] [stdout] 72 | |         Self::Action + 'k> where 
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 71 ~     fn boxed_into_fnmut(self: Box<Self>) -> Box<dyn FnMut(&Self::Input) -> 
[INFO] [stdout] 72 ~         Self::Action + 'k> where 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/automaton.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let mut this = self;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/ref_state_machine.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn step(self, &Self::Input) -> (Self::Action, Self);
[INFO] [stdout]    |                   ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Input`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/internal_state_machine.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn step(&Self::Input, &mut Self::Internal) -> Self::Action;
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Input`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/internal_state_machine.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn step(&Self::Input, &mut Self::Internal) -> Self::Action;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Self::Internal`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/dual_state_machine.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn step(self, &Self::Input, &mut Self::Internal) -> (Self::Action, Self);
[INFO] [stdout]    |                   ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Input`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/dual_state_machine.rs:15:33
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn step(self, &Self::Input, &mut Self::Internal) -> (Self::Action, Self);
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Self::Internal`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/map_wrappers.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn input_transform(&Self::In) -> Self::Out;
[INFO] [stdout]    |                        ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::In`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/map_wrappers.rs:127:25
[INFO] [stdout]     |
[INFO] [stdout] 127 |     fn output_transform(Self::In) -> Self::Out;
[INFO] [stdout]     |                         ^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::In`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]    --> src/map_wrappers.rs:196:15
[INFO] [stdout]     |
[INFO] [stdout] 196 |     fn create(&<Self::Creates as Automaton<'k>>::Input) -> Self::Creates;
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &<Self::Creates as Automaton<'k>>::Input`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/automaton.rs:94:34
[INFO] [stdout]    |
[INFO] [stdout] 94 | impl<'k, I, A> Automaton<'k> for FnMut(&I) -> A + 'k where 
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 94 - impl<'k, I, A> Automaton<'k> for FnMut(&I) -> A + 'k where 
[INFO] [stdout] 94 + impl<'k, I, A> Automaton<'k> for dyn FnMut(&I) -> A + 'k where 
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/automaton.rs:39:42
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn as_fnmut<'t>(&'t mut self) -> Box<FnMut(&Self::Input)->Self::Action+'t> where 
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 39 -     fn as_fnmut<'t>(&'t mut self) -> Box<FnMut(&Self::Input)->Self::Action+'t> where 
[INFO] [stdout] 39 +     fn as_fnmut<'t>(&'t mut self) -> Box<dyn FnMut(&Self::Input)->Self::Action+'t> where 
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/automaton.rs:50:32
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn into_fnmut(self) -> Box<FnMut(&Self::Input) -> Self::Action + 'k> where 
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 -     fn into_fnmut(self) -> Box<FnMut(&Self::Input) -> Self::Action + 'k> where 
[INFO] [stdout] 50 +     fn into_fnmut(self) -> Box<dyn FnMut(&Self::Input) -> Self::Action + 'k> where 
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/automaton.rs:71:49
[INFO] [stdout]    |
[INFO] [stdout] 71 |       fn boxed_into_fnmut(self: Box<Self>) -> Box<FnMut(&Self::Input) -> 
[INFO] [stdout]    |  _________________________________________________^
[INFO] [stdout] 72 | |         Self::Action + 'k> where 
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 71 ~     fn boxed_into_fnmut(self: Box<Self>) -> Box<dyn FnMut(&Self::Input) -> 
[INFO] [stdout] 72 ~         Self::Action + 'k> where 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]    --> src/map_wrappers.rs:375:30
[INFO] [stdout]     |
[INFO] [stdout] 375 |         fn step(input: &i64, state: &mut ()) -> i64 {
[INFO] [stdout]     |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/map_wrappers.rs:431:17
[INFO] [stdout]     |
[INFO] [stdout] 431 |         fn step(input: &i64, state: &mut i64) -> i64{
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/automaton.rs:42:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let mut this = self;
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "b5114d980f3038cba98ff9914d532449c857c209133031471c7427032cfdf24b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5114d980f3038cba98ff9914d532449c857c209133031471c7427032cfdf24b", kill_on_drop: false }`
[INFO] [stdout] b5114d980f3038cba98ff9914d532449c857c209133031471c7427032cfdf24b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 60309ad53e1acb9059792803cf9c51bde7299e9a936146d488e1210a39409d5b
[INFO] running `Command { std: "docker" "start" "-a" "60309ad53e1acb9059792803cf9c51bde7299e9a936146d488e1210a39409d5b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/ref_state_machine.rs:13:19
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn step(self, &Self::Input) -> (Self::Action, Self);
[INFO] [stderr]    |                   ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/internal_state_machine.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn step(&Self::Input, &mut Self::Internal) -> Self::Action;
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Input`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/internal_state_machine.rs:14:27
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn step(&Self::Input, &mut Self::Internal) -> Self::Action;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Self::Internal`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/dual_state_machine.rs:15:19
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn step(self, &Self::Input, &mut Self::Internal) -> (Self::Action, Self);
[INFO] [stderr]    |                   ^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::Input`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/dual_state_machine.rs:15:33
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn step(self, &Self::Input, &mut Self::Internal) -> (Self::Action, Self);
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &mut Self::Internal`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/map_wrappers.rs:54:24
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn input_transform(&Self::In) -> Self::Out;
[INFO] [stderr]    |                        ^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &Self::In`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]    --> src/map_wrappers.rs:127:25
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn output_transform(Self::In) -> Self::Out;
[INFO] [stderr]     |                         ^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::In`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]    --> src/map_wrappers.rs:196:15
[INFO] [stderr]     |
[INFO] [stderr] 196 |     fn create(&<Self::Creates as Automaton<'k>>::Input) -> Self::Creates;
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &<Self::Creates as Automaton<'k>>::Input`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]     = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/automaton.rs:94:34
[INFO] [stderr]    |
[INFO] [stderr] 94 | impl<'k, I, A> Automaton<'k> for FnMut(&I) -> A + 'k where 
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 94 - impl<'k, I, A> Automaton<'k> for FnMut(&I) -> A + 'k where 
[INFO] [stderr] 94 + impl<'k, I, A> Automaton<'k> for dyn FnMut(&I) -> A + 'k where 
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/automaton.rs:39:42
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn as_fnmut<'t>(&'t mut self) -> Box<FnMut(&Self::Input)->Self::Action+'t> where 
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 39 -     fn as_fnmut<'t>(&'t mut self) -> Box<FnMut(&Self::Input)->Self::Action+'t> where 
[INFO] [stderr] 39 +     fn as_fnmut<'t>(&'t mut self) -> Box<dyn FnMut(&Self::Input)->Self::Action+'t> where 
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/automaton.rs:50:32
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn into_fnmut(self) -> Box<FnMut(&Self::Input) -> Self::Action + 'k> where 
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 50 -     fn into_fnmut(self) -> Box<FnMut(&Self::Input) -> Self::Action + 'k> where 
[INFO] [stderr] 50 +     fn into_fnmut(self) -> Box<dyn FnMut(&Self::Input) -> Self::Action + 'k> where 
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/automaton.rs:71:49
[INFO] [stderr]    |
[INFO] [stderr] 71 |       fn boxed_into_fnmut(self: Box<Self>) -> Box<FnMut(&Self::Input) -> 
[INFO] [stderr]    |  _________________________________________________^
[INFO] [stderr] 72 | |         Self::Action + 'k> where 
[INFO] [stderr]    | |_________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 71 ~     fn boxed_into_fnmut(self: Box<Self>) -> Box<dyn FnMut(&Self::Input) -> 
[INFO] [stderr] 72 ~         Self::Action + 'k> where 
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/automaton.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let mut this = self;
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stackbt_automata_impl` (lib) generated 13 warnings
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]    --> src/map_wrappers.rs:375:30
[INFO] [stderr]     |
[INFO] [stderr] 375 |         fn step(input: &i64, state: &mut ()) -> i64 {
[INFO] [stderr]     |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]    --> src/map_wrappers.rs:431:17
[INFO] [stderr]     |
[INFO] [stderr] 431 |         fn step(input: &i64, state: &mut i64) -> i64{
[INFO] [stderr]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: `stackbt_automata_impl` (lib test) generated 15 warnings (13 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stackbt_automata_impl-bc1f5f5bedab31e9)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test automaton::tests::as_fnmut_test ... ok
[INFO] [stdout] test automaton::tests::box_into_fnmut_test ... ok
[INFO] [stdout] test dual_state_machine::tests::check_def ... ok
[INFO] [stdout] test automaton::tests::into_fnmut_test ... ok
[INFO] [stdout] test internal_state_machine::tests::check_def ... ok
[INFO] [stdout] test map_wrappers::tests::custom_constructor_test ... ok
[INFO] [stdout] test map_wrappers::tests::input_map_test ... ok
[INFO] [stdout] test map_wrappers::tests::lazy_constructor_test ... ok
[INFO] [stdout] test map_wrappers::tests::output_map_test ... ok
[INFO] [stdout] test pushdown_automaton::test::check_def ... ok
[INFO] [stdout] test ref_state_machine::tests::check_def ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stackbt_automata_impl
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/ref_state_machine.rs - ref_state_machine::RefStateMachine (line 21) ... ok
[INFO] [stdout] test src/dual_state_machine.rs - dual_state_machine::DualStateMachine (line 24) ... ok
[INFO] [stdout] test src/internal_state_machine.rs - internal_state_machine::InternalStateMachine (line 26) ... ok
[INFO] [stdout] test src/lib.rs - map_wrappers (line 21) ... ok
[INFO] [stdout] test src/automaton.rs - automaton::Automaton (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "60309ad53e1acb9059792803cf9c51bde7299e9a936146d488e1210a39409d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60309ad53e1acb9059792803cf9c51bde7299e9a936146d488e1210a39409d5b", kill_on_drop: false }`
[INFO] [stdout] 60309ad53e1acb9059792803cf9c51bde7299e9a936146d488e1210a39409d5b