[INFO] fetching crate pest_derive_tmp 2.1.0...
[INFO] checking pest_derive_tmp-2.1.0 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate pest_derive_tmp 2.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate pest_derive_tmp 2.1.0 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pest_derive_tmp 2.1.0
[INFO] finished tweaking crates.io crate pest_derive_tmp 2.1.0
[INFO] tweaked toml for crates.io crate pest_derive_tmp 2.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest_generator_tmp v2.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7febbc3a5989807025c94e42f60970118ccbae2f5ccf0234ba4aa9198a037fa3
[INFO] running `Command { std: "docker" "start" "-a" "7febbc3a5989807025c94e42f60970118ccbae2f5ccf0234ba4aa9198a037fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7febbc3a5989807025c94e42f60970118ccbae2f5ccf0234ba4aa9198a037fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7febbc3a5989807025c94e42f60970118ccbae2f5ccf0234ba4aa9198a037fa3", kill_on_drop: false }`
[INFO] [stdout] 7febbc3a5989807025c94e42f60970118ccbae2f5ccf0234ba4aa9198a037fa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10ae216c115f6a91b12bf8606ce095f58c58bc51251150d32e9fc9d4afa7596f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "10ae216c115f6a91b12bf8606ce095f58c58bc51251150d32e9fc9d4afa7596f", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling pest_tmp v2.1.1
[INFO] [stderr]     Checking pest_generator_tmp v2.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking pest_derive_tmp v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling pest_meta_tmp v2.1.1
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar_inline.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     parses_to! {
[INFO] [stdout] 19 | |         parser: GrammarParser,
[INFO] [stdout] 20 | |         input: "abc",
[INFO] [stdout] 21 | |         rule: Rule::string,
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         ]
[INFO] [stdout] 25 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar_inline.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     parses_to! {
[INFO] [stdout] 19 | |         parser: GrammarParser,
[INFO] [stdout] 20 | |         input: "abc",
[INFO] [stdout] 21 | |         rule: Rule::string,
[INFO] [stdout] ...  |
[INFO] [stdout] 24 | |         ]
[INFO] [stdout] 25 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/lists.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     parses_to! {
[INFO] [stdout] 22 | |         parser: ListsParser,
[INFO] [stdout] 23 | |         input: "- a",
[INFO] [stdout] 24 | |         rule: Rule::lists,
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |         ]
[INFO] [stdout] 28 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/lists.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     parses_to! {
[INFO] [stdout] 22 | |         parser: ListsParser,
[INFO] [stdout] 23 | |         input: "- a",
[INFO] [stdout] 24 | |         rule: Rule::lists,
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |         ]
[INFO] [stdout] 28 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/lists.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     parses_to! {
[INFO] [stdout] 34 | |         parser: ListsParser,
[INFO] [stdout] 35 | |         input: "- a\n- b",
[INFO] [stdout] 36 | |         rule: Rule::lists,
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |         ]
[INFO] [stdout] 41 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/lists.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     parses_to! {
[INFO] [stdout] 34 | |         parser: ListsParser,
[INFO] [stdout] 35 | |         input: "- a\n- b",
[INFO] [stdout] 36 | |         rule: Rule::lists,
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |         ]
[INFO] [stdout] 41 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/lists.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | /     parses_to! {
[INFO] [stdout] 47 | |         parser: ListsParser,
[INFO] [stdout] 48 | |         input: "  - b",
[INFO] [stdout] 49 | |         rule: Rule::children,
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |         ]
[INFO] [stdout] 55 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/lists.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | /     parses_to! {
[INFO] [stdout] 47 | |         parser: ListsParser,
[INFO] [stdout] 48 | |         input: "  - b",
[INFO] [stdout] 49 | |         rule: Rule::children,
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |         ]
[INFO] [stdout] 55 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/lists.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     parses_to! {
[INFO] [stdout] 61 | |         parser: ListsParser,
[INFO] [stdout] 62 | |         input: "- a\n  - b",
[INFO] [stdout] 63 | |         rule: Rule::lists,
[INFO] [stdout] ...  |
[INFO] [stdout] 69 | |         ]
[INFO] [stdout] 70 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/lists.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     parses_to! {
[INFO] [stdout] 61 | |         parser: ListsParser,
[INFO] [stdout] 62 | |         input: "- a\n  - b",
[INFO] [stdout] 63 | |         rule: Rule::lists,
[INFO] [stdout] ...  |
[INFO] [stdout] 69 | |         ]
[INFO] [stdout] 70 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/lists.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | /     parses_to! {
[INFO] [stdout] 76 | |         parser: ListsParser,
[INFO] [stdout] 77 | |         input: "- a\n  - b\n  - c",
[INFO] [stdout] 78 | |         rule: Rule::lists,
[INFO] [stdout] ...  |
[INFO] [stdout] 85 | |         ]
[INFO] [stdout] 86 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/lists.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 | /     parses_to! {
[INFO] [stdout] 76 | |         parser: ListsParser,
[INFO] [stdout] 77 | |         input: "- a\n  - b\n  - c",
[INFO] [stdout] 78 | |         rule: Rule::lists,
[INFO] [stdout] ...  |
[INFO] [stdout] 85 | |         ]
[INFO] [stdout] 86 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/lists.rs:91:5
[INFO] [stdout]     |
[INFO] [stdout] 91  | /     parses_to! {
[INFO] [stdout] 92  | |         parser: ListsParser,
[INFO] [stdout] 93  | |         input: "- a\n  - b\n    - c",
[INFO] [stdout] 94  | |         rule: Rule::lists,
[INFO] [stdout] ...   |
[INFO] [stdout] 103 | |         ]
[INFO] [stdout] 104 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/lists.rs:91:5
[INFO] [stdout]     |
[INFO] [stdout] 91  | /     parses_to! {
[INFO] [stdout] 92  | |         parser: ListsParser,
[INFO] [stdout] 93  | |         input: "- a\n  - b\n    - c",
[INFO] [stdout] 94  | |         rule: Rule::lists,
[INFO] [stdout] ...   |
[INFO] [stdout] 103 | |         ]
[INFO] [stdout] 104 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/lists.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 | /     parses_to! {
[INFO] [stdout] 110 | |         parser: ListsParser,
[INFO] [stdout] 111 | |         input: "- a\n  - b\n- c",
[INFO] [stdout] 112 | |         rule: Rule::lists,
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |         ]
[INFO] [stdout] 120 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/lists.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 | /     parses_to! {
[INFO] [stdout] 110 | |         parser: ListsParser,
[INFO] [stdout] 111 | |         input: "- a\n  - b\n- c",
[INFO] [stdout] 112 | |         rule: Rule::lists,
[INFO] [stdout] ...   |
[INFO] [stdout] 119 | |         ]
[INFO] [stdout] 120 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     parses_to! {
[INFO] [stdout] 22 | |         parser: GrammarParser,
[INFO] [stdout] 23 | |         input: "abc",
[INFO] [stdout] 24 | |         rule: Rule::string,
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |         ]
[INFO] [stdout] 28 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     parses_to! {
[INFO] [stdout] 22 | |         parser: GrammarParser,
[INFO] [stdout] 23 | |         input: "abc",
[INFO] [stdout] 24 | |         rule: Rule::string,
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |         ]
[INFO] [stdout] 28 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     parses_to! {
[INFO] [stdout] 34 | |         parser: GrammarParser,
[INFO] [stdout] 35 | |         input: "aBC",
[INFO] [stdout] 36 | |         rule: Rule::insensitive,
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |         ]
[INFO] [stdout] 40 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     parses_to! {
[INFO] [stdout] 34 | |         parser: GrammarParser,
[INFO] [stdout] 35 | |         input: "aBC",
[INFO] [stdout] 36 | |         rule: Rule::insensitive,
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |         ]
[INFO] [stdout] 40 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     parses_to! {
[INFO] [stdout] 46 | |         parser: GrammarParser,
[INFO] [stdout] 47 | |         input: "6",
[INFO] [stdout] 48 | |         rule: Rule::range,
[INFO] [stdout] ...  |
[INFO] [stdout] 51 | |         ]
[INFO] [stdout] 52 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     parses_to! {
[INFO] [stdout] 46 | |         parser: GrammarParser,
[INFO] [stdout] 47 | |         input: "6",
[INFO] [stdout] 48 | |         rule: Rule::range,
[INFO] [stdout] ...  |
[INFO] [stdout] 51 | |         ]
[INFO] [stdout] 52 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | /     parses_to! {
[INFO] [stdout] 58 | |         parser: GrammarParser,
[INFO] [stdout] 59 | |         input: "abc",
[INFO] [stdout] 60 | |         rule: Rule::ident,
[INFO] [stdout] ...  |
[INFO] [stdout] 65 | |         ]
[INFO] [stdout] 66 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | /     parses_to! {
[INFO] [stdout] 58 | |         parser: GrammarParser,
[INFO] [stdout] 59 | |         input: "abc",
[INFO] [stdout] 60 | |         rule: Rule::ident,
[INFO] [stdout] ...  |
[INFO] [stdout] 65 | |         ]
[INFO] [stdout] 66 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | /     parses_to! {
[INFO] [stdout] 72 | |         parser: GrammarParser,
[INFO] [stdout] 73 | |         input: "abc",
[INFO] [stdout] 74 | |         rule: Rule::pos_pred,
[INFO] [stdout] ...  |
[INFO] [stdout] 77 | |         ]
[INFO] [stdout] 78 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | /     parses_to! {
[INFO] [stdout] 72 | |         parser: GrammarParser,
[INFO] [stdout] 73 | |         input: "abc",
[INFO] [stdout] 74 | |         rule: Rule::pos_pred,
[INFO] [stdout] ...  |
[INFO] [stdout] 77 | |         ]
[INFO] [stdout] 78 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | /     parses_to! {
[INFO] [stdout] 84 | |         parser: GrammarParser,
[INFO] [stdout] 85 | |         input: "",
[INFO] [stdout] 86 | |         rule: Rule::neg_pred,
[INFO] [stdout] ...  |
[INFO] [stdout] 89 | |         ]
[INFO] [stdout] 90 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/grammar.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | /     parses_to! {
[INFO] [stdout] 84 | |         parser: GrammarParser,
[INFO] [stdout] 85 | |         input: "",
[INFO] [stdout] 86 | |         rule: Rule::neg_pred,
[INFO] [stdout] ...  |
[INFO] [stdout] 89 | |         ]
[INFO] [stdout] 90 | |     };
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:95:5
[INFO] [stdout]     |
[INFO] [stdout] 95  | /     parses_to! {
[INFO] [stdout] 96  | |         parser: GrammarParser,
[INFO] [stdout] 97  | |         input: "abc",
[INFO] [stdout] 98  | |         rule: Rule::double_neg_pred,
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |         ]
[INFO] [stdout] 102 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:95:5
[INFO] [stdout]     |
[INFO] [stdout] 95  | /     parses_to! {
[INFO] [stdout] 96  | |         parser: GrammarParser,
[INFO] [stdout] 97  | |         input: "abc",
[INFO] [stdout] 98  | |         rule: Rule::double_neg_pred,
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |         ]
[INFO] [stdout] 102 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 | /     parses_to! {
[INFO] [stdout] 108 | |         parser: GrammarParser,
[INFO] [stdout] 109 | |         input: "abc   abc",
[INFO] [stdout] 110 | |         rule: Rule::sequence,
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         ]
[INFO] [stdout] 117 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 | /     parses_to! {
[INFO] [stdout] 108 | |         parser: GrammarParser,
[INFO] [stdout] 109 | |         input: "abc   abc",
[INFO] [stdout] 110 | |         rule: Rule::sequence,
[INFO] [stdout] ...   |
[INFO] [stdout] 116 | |         ]
[INFO] [stdout] 117 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 | /     parses_to! {
[INFO] [stdout] 123 | |         parser: GrammarParser,
[INFO] [stdout] 124 | |         input: "abcabc",
[INFO] [stdout] 125 | |         rule: Rule::sequence_compound,
[INFO] [stdout] ...   |
[INFO] [stdout] 131 | |         ]
[INFO] [stdout] 132 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 | /     parses_to! {
[INFO] [stdout] 123 | |         parser: GrammarParser,
[INFO] [stdout] 124 | |         input: "abcabc",
[INFO] [stdout] 125 | |         rule: Rule::sequence_compound,
[INFO] [stdout] ...   |
[INFO] [stdout] 131 | |         ]
[INFO] [stdout] 132 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:137:5
[INFO] [stdout]     |
[INFO] [stdout] 137 | /     parses_to! {
[INFO] [stdout] 138 | |         parser: GrammarParser,
[INFO] [stdout] 139 | |         input: "abcabc",
[INFO] [stdout] 140 | |         rule: Rule::sequence_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 143 | |         ]
[INFO] [stdout] 144 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:137:5
[INFO] [stdout]     |
[INFO] [stdout] 137 | /     parses_to! {
[INFO] [stdout] 138 | |         parser: GrammarParser,
[INFO] [stdout] 139 | |         input: "abcabc",
[INFO] [stdout] 140 | |         rule: Rule::sequence_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 143 | |         ]
[INFO] [stdout] 144 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | /     parses_to! {
[INFO] [stdout] 150 | |         parser: GrammarParser,
[INFO] [stdout] 151 | |         input: "abc   abc",
[INFO] [stdout] 152 | |         rule: Rule::sequence_non_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 160 | |         ]
[INFO] [stdout] 161 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 | /     parses_to! {
[INFO] [stdout] 150 | |         parser: GrammarParser,
[INFO] [stdout] 151 | |         input: "abc   abc",
[INFO] [stdout] 152 | |         rule: Rule::sequence_non_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 160 | |         ]
[INFO] [stdout] 161 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 | /     parses_to! {
[INFO] [stdout] 168 | |         parser: GrammarParser,
[INFO] [stdout] 169 | |         input: "abc abc",
[INFO] [stdout] 170 | |         rule: Rule::sequence_atomic,
[INFO] [stdout] 171 | |         tokens: []
[INFO] [stdout] 172 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 | /     parses_to! {
[INFO] [stdout] 168 | |         parser: GrammarParser,
[INFO] [stdout] 169 | |         input: "abc abc",
[INFO] [stdout] 170 | |         rule: Rule::sequence_atomic,
[INFO] [stdout] 171 | |         tokens: []
[INFO] [stdout] 172 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 177 | /     parses_to! {
[INFO] [stdout] 178 | |         parser: GrammarParser,
[INFO] [stdout] 179 | |         input: "abcabc",
[INFO] [stdout] 180 | |         rule: Rule::sequence_atomic_compound,
[INFO] [stdout] ...   |
[INFO] [stdout] 188 | |         ]
[INFO] [stdout] 189 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 177 | /     parses_to! {
[INFO] [stdout] 178 | |         parser: GrammarParser,
[INFO] [stdout] 179 | |         input: "abcabc",
[INFO] [stdout] 180 | |         rule: Rule::sequence_atomic_compound,
[INFO] [stdout] ...   |
[INFO] [stdout] 188 | |         ]
[INFO] [stdout] 189 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 | /     parses_to! {
[INFO] [stdout] 195 | |         parser: GrammarParser,
[INFO] [stdout] 196 | |         input: "abcabc",
[INFO] [stdout] 197 | |         rule: Rule::sequence_compound_nested,
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         ]
[INFO] [stdout] 206 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 | /     parses_to! {
[INFO] [stdout] 195 | |         parser: GrammarParser,
[INFO] [stdout] 196 | |         input: "abcabc",
[INFO] [stdout] 197 | |         rule: Rule::sequence_compound_nested,
[INFO] [stdout] ...   |
[INFO] [stdout] 205 | |         ]
[INFO] [stdout] 206 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 | /     parses_to! {
[INFO] [stdout] 213 | |         parser: GrammarParser,
[INFO] [stdout] 214 | |         input: "abc abc",
[INFO] [stdout] 215 | |         rule: Rule::sequence_compound_nested,
[INFO] [stdout] 216 | |         tokens: []
[INFO] [stdout] 217 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:212:5
[INFO] [stdout]     |
[INFO] [stdout] 212 | /     parses_to! {
[INFO] [stdout] 213 | |         parser: GrammarParser,
[INFO] [stdout] 214 | |         input: "abc abc",
[INFO] [stdout] 215 | |         rule: Rule::sequence_compound_nested,
[INFO] [stdout] 216 | |         tokens: []
[INFO] [stdout] 217 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:222:5
[INFO] [stdout]     |
[INFO] [stdout] 222 | /     parses_to! {
[INFO] [stdout] 223 | |         parser: GrammarParser,
[INFO] [stdout] 224 | |         input: "abc",
[INFO] [stdout] 225 | |         rule: Rule::choice,
[INFO] [stdout] ...   |
[INFO] [stdout] 230 | |         ]
[INFO] [stdout] 231 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:222:5
[INFO] [stdout]     |
[INFO] [stdout] 222 | /     parses_to! {
[INFO] [stdout] 223 | |         parser: GrammarParser,
[INFO] [stdout] 224 | |         input: "abc",
[INFO] [stdout] 225 | |         rule: Rule::choice,
[INFO] [stdout] ...   |
[INFO] [stdout] 230 | |         ]
[INFO] [stdout] 231 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:236:5
[INFO] [stdout]     |
[INFO] [stdout] 236 | /     parses_to! {
[INFO] [stdout] 237 | |         parser: GrammarParser,
[INFO] [stdout] 238 | |         input: "0",
[INFO] [stdout] 239 | |         rule: Rule::choice,
[INFO] [stdout] ...   |
[INFO] [stdout] 244 | |         ]
[INFO] [stdout] 245 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:236:5
[INFO] [stdout]     |
[INFO] [stdout] 236 | /     parses_to! {
[INFO] [stdout] 237 | |         parser: GrammarParser,
[INFO] [stdout] 238 | |         input: "0",
[INFO] [stdout] 239 | |         rule: Rule::choice,
[INFO] [stdout] ...   |
[INFO] [stdout] 244 | |         ]
[INFO] [stdout] 245 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 250 | /     parses_to! {
[INFO] [stdout] 251 | |         parser: GrammarParser,
[INFO] [stdout] 252 | |         input: "abc",
[INFO] [stdout] 253 | |         rule: Rule::optional,
[INFO] [stdout] ...   |
[INFO] [stdout] 258 | |         ]
[INFO] [stdout] 259 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 250 | /     parses_to! {
[INFO] [stdout] 251 | |         parser: GrammarParser,
[INFO] [stdout] 252 | |         input: "abc",
[INFO] [stdout] 253 | |         rule: Rule::optional,
[INFO] [stdout] ...   |
[INFO] [stdout] 258 | |         ]
[INFO] [stdout] 259 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:264:5
[INFO] [stdout]     |
[INFO] [stdout] 264 | /     parses_to! {
[INFO] [stdout] 265 | |         parser: GrammarParser,
[INFO] [stdout] 266 | |         input: "",
[INFO] [stdout] 267 | |         rule: Rule::optional,
[INFO] [stdout] ...   |
[INFO] [stdout] 270 | |         ]
[INFO] [stdout] 271 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:264:5
[INFO] [stdout]     |
[INFO] [stdout] 264 | /     parses_to! {
[INFO] [stdout] 265 | |         parser: GrammarParser,
[INFO] [stdout] 266 | |         input: "",
[INFO] [stdout] 267 | |         rule: Rule::optional,
[INFO] [stdout] ...   |
[INFO] [stdout] 270 | |         ]
[INFO] [stdout] 271 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:276:5
[INFO] [stdout]     |
[INFO] [stdout] 276 | /     parses_to! {
[INFO] [stdout] 277 | |         parser: GrammarParser,
[INFO] [stdout] 278 | |         input: "",
[INFO] [stdout] 279 | |         rule: Rule::repeat,
[INFO] [stdout] ...   |
[INFO] [stdout] 282 | |         ]
[INFO] [stdout] 283 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:276:5
[INFO] [stdout]     |
[INFO] [stdout] 276 | /     parses_to! {
[INFO] [stdout] 277 | |         parser: GrammarParser,
[INFO] [stdout] 278 | |         input: "",
[INFO] [stdout] 279 | |         rule: Rule::repeat,
[INFO] [stdout] ...   |
[INFO] [stdout] 282 | |         ]
[INFO] [stdout] 283 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:288:5
[INFO] [stdout]     |
[INFO] [stdout] 288 | /     parses_to! {
[INFO] [stdout] 289 | |         parser: GrammarParser,
[INFO] [stdout] 290 | |         input: "abc   abc",
[INFO] [stdout] 291 | |         rule: Rule::repeat,
[INFO] [stdout] ...   |
[INFO] [stdout] 297 | |         ]
[INFO] [stdout] 298 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:288:5
[INFO] [stdout]     |
[INFO] [stdout] 288 | /     parses_to! {
[INFO] [stdout] 289 | |         parser: GrammarParser,
[INFO] [stdout] 290 | |         input: "abc   abc",
[INFO] [stdout] 291 | |         rule: Rule::repeat,
[INFO] [stdout] ...   |
[INFO] [stdout] 297 | |         ]
[INFO] [stdout] 298 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:303:5
[INFO] [stdout]     |
[INFO] [stdout] 303 | /     parses_to! {
[INFO] [stdout] 304 | |         parser: GrammarParser,
[INFO] [stdout] 305 | |         input: "",
[INFO] [stdout] 306 | |         rule: Rule::repeat_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 309 | |         ]
[INFO] [stdout] 310 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:303:5
[INFO] [stdout]     |
[INFO] [stdout] 303 | /     parses_to! {
[INFO] [stdout] 304 | |         parser: GrammarParser,
[INFO] [stdout] 305 | |         input: "",
[INFO] [stdout] 306 | |         rule: Rule::repeat_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 309 | |         ]
[INFO] [stdout] 310 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:315:5
[INFO] [stdout]     |
[INFO] [stdout] 315 | /     parses_to! {
[INFO] [stdout] 316 | |         parser: GrammarParser,
[INFO] [stdout] 317 | |         input: "abcabc",
[INFO] [stdout] 318 | |         rule: Rule::repeat_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 321 | |         ]
[INFO] [stdout] 322 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:315:5
[INFO] [stdout]     |
[INFO] [stdout] 315 | /     parses_to! {
[INFO] [stdout] 316 | |         parser: GrammarParser,
[INFO] [stdout] 317 | |         input: "abcabc",
[INFO] [stdout] 318 | |         rule: Rule::repeat_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 321 | |         ]
[INFO] [stdout] 322 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:328:5
[INFO] [stdout]     |
[INFO] [stdout] 328 | /     parses_to! {
[INFO] [stdout] 329 | |         parser: GrammarParser,
[INFO] [stdout] 330 | |         input: "abc abc",
[INFO] [stdout] 331 | |         rule: Rule::repeat_atomic,
[INFO] [stdout] 332 | |         tokens: []
[INFO] [stdout] 333 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:328:5
[INFO] [stdout]     |
[INFO] [stdout] 328 | /     parses_to! {
[INFO] [stdout] 329 | |         parser: GrammarParser,
[INFO] [stdout] 330 | |         input: "abc abc",
[INFO] [stdout] 331 | |         rule: Rule::repeat_atomic,
[INFO] [stdout] 332 | |         tokens: []
[INFO] [stdout] 333 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:339:5
[INFO] [stdout]     |
[INFO] [stdout] 339 | /     parses_to! {
[INFO] [stdout] 340 | |         parser: GrammarParser,
[INFO] [stdout] 341 | |         input: "",
[INFO] [stdout] 342 | |         rule: Rule::repeat_once,
[INFO] [stdout] 343 | |         tokens: []
[INFO] [stdout] 344 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:339:5
[INFO] [stdout]     |
[INFO] [stdout] 339 | /     parses_to! {
[INFO] [stdout] 340 | |         parser: GrammarParser,
[INFO] [stdout] 341 | |         input: "",
[INFO] [stdout] 342 | |         rule: Rule::repeat_once,
[INFO] [stdout] 343 | |         tokens: []
[INFO] [stdout] 344 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:349:5
[INFO] [stdout]     |
[INFO] [stdout] 349 | /     parses_to! {
[INFO] [stdout] 350 | |         parser: GrammarParser,
[INFO] [stdout] 351 | |         input: "abc   abc",
[INFO] [stdout] 352 | |         rule: Rule::repeat_once,
[INFO] [stdout] ...   |
[INFO] [stdout] 358 | |         ]
[INFO] [stdout] 359 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:349:5
[INFO] [stdout]     |
[INFO] [stdout] 349 | /     parses_to! {
[INFO] [stdout] 350 | |         parser: GrammarParser,
[INFO] [stdout] 351 | |         input: "abc   abc",
[INFO] [stdout] 352 | |         rule: Rule::repeat_once,
[INFO] [stdout] ...   |
[INFO] [stdout] 358 | |         ]
[INFO] [stdout] 359 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:365:5
[INFO] [stdout]     |
[INFO] [stdout] 365 | /     parses_to! {
[INFO] [stdout] 366 | |         parser: GrammarParser,
[INFO] [stdout] 367 | |         input: "",
[INFO] [stdout] 368 | |         rule: Rule::repeat_once_atomic,
[INFO] [stdout] 369 | |         tokens: []
[INFO] [stdout] 370 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:365:5
[INFO] [stdout]     |
[INFO] [stdout] 365 | /     parses_to! {
[INFO] [stdout] 366 | |         parser: GrammarParser,
[INFO] [stdout] 367 | |         input: "",
[INFO] [stdout] 368 | |         rule: Rule::repeat_once_atomic,
[INFO] [stdout] 369 | |         tokens: []
[INFO] [stdout] 370 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:375:5
[INFO] [stdout]     |
[INFO] [stdout] 375 | /     parses_to! {
[INFO] [stdout] 376 | |         parser: GrammarParser,
[INFO] [stdout] 377 | |         input: "abcabc",
[INFO] [stdout] 378 | |         rule: Rule::repeat_once_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 381 | |         ]
[INFO] [stdout] 382 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:375:5
[INFO] [stdout]     |
[INFO] [stdout] 375 | /     parses_to! {
[INFO] [stdout] 376 | |         parser: GrammarParser,
[INFO] [stdout] 377 | |         input: "abcabc",
[INFO] [stdout] 378 | |         rule: Rule::repeat_once_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 381 | |         ]
[INFO] [stdout] 382 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:388:5
[INFO] [stdout]     |
[INFO] [stdout] 388 | /     parses_to! {
[INFO] [stdout] 389 | |         parser: GrammarParser,
[INFO] [stdout] 390 | |         input: "abc abc",
[INFO] [stdout] 391 | |         rule: Rule::repeat_once_atomic,
[INFO] [stdout] 392 | |         tokens: []
[INFO] [stdout] 393 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:388:5
[INFO] [stdout]     |
[INFO] [stdout] 388 | /     parses_to! {
[INFO] [stdout] 389 | |         parser: GrammarParser,
[INFO] [stdout] 390 | |         input: "abc abc",
[INFO] [stdout] 391 | |         rule: Rule::repeat_once_atomic,
[INFO] [stdout] 392 | |         tokens: []
[INFO] [stdout] 393 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:398:5
[INFO] [stdout]     |
[INFO] [stdout] 398 | /     parses_to! {
[INFO] [stdout] 399 | |         parser: GrammarParser,
[INFO] [stdout] 400 | |         input: "abc abc",
[INFO] [stdout] 401 | |         rule: Rule::repeat_min_max,
[INFO] [stdout] ...   |
[INFO] [stdout] 407 | |         ]
[INFO] [stdout] 408 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:398:5
[INFO] [stdout]     |
[INFO] [stdout] 398 | /     parses_to! {
[INFO] [stdout] 399 | |         parser: GrammarParser,
[INFO] [stdout] 400 | |         input: "abc abc",
[INFO] [stdout] 401 | |         rule: Rule::repeat_min_max,
[INFO] [stdout] ...   |
[INFO] [stdout] 407 | |         ]
[INFO] [stdout] 408 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:413:5
[INFO] [stdout]     |
[INFO] [stdout] 413 | /     parses_to! {
[INFO] [stdout] 414 | |         parser: GrammarParser,
[INFO] [stdout] 415 | |         input: "abc abc abc",
[INFO] [stdout] 416 | |         rule: Rule::repeat_min_max,
[INFO] [stdout] ...   |
[INFO] [stdout] 423 | |         ]
[INFO] [stdout] 424 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:413:5
[INFO] [stdout]     |
[INFO] [stdout] 413 | /     parses_to! {
[INFO] [stdout] 414 | |         parser: GrammarParser,
[INFO] [stdout] 415 | |         input: "abc abc abc",
[INFO] [stdout] 416 | |         rule: Rule::repeat_min_max,
[INFO] [stdout] ...   |
[INFO] [stdout] 423 | |         ]
[INFO] [stdout] 424 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:429:5
[INFO] [stdout]     |
[INFO] [stdout] 429 | /     parses_to! {
[INFO] [stdout] 430 | |         parser: GrammarParser,
[INFO] [stdout] 431 | |         input: "abcabc",
[INFO] [stdout] 432 | |         rule: Rule::repeat_min_max_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 435 | |         ]
[INFO] [stdout] 436 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:429:5
[INFO] [stdout]     |
[INFO] [stdout] 429 | /     parses_to! {
[INFO] [stdout] 430 | |         parser: GrammarParser,
[INFO] [stdout] 431 | |         input: "abcabc",
[INFO] [stdout] 432 | |         rule: Rule::repeat_min_max_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 435 | |         ]
[INFO] [stdout] 436 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:441:5
[INFO] [stdout]     |
[INFO] [stdout] 441 | /     parses_to! {
[INFO] [stdout] 442 | |         parser: GrammarParser,
[INFO] [stdout] 443 | |         input: "abcabcabc",
[INFO] [stdout] 444 | |         rule: Rule::repeat_min_max_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 447 | |         ]
[INFO] [stdout] 448 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:441:5
[INFO] [stdout]     |
[INFO] [stdout] 441 | /     parses_to! {
[INFO] [stdout] 442 | |         parser: GrammarParser,
[INFO] [stdout] 443 | |         input: "abcabcabc",
[INFO] [stdout] 444 | |         rule: Rule::repeat_min_max_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 447 | |         ]
[INFO] [stdout] 448 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:454:5
[INFO] [stdout]     |
[INFO] [stdout] 454 | /     parses_to! {
[INFO] [stdout] 455 | |         parser: GrammarParser,
[INFO] [stdout] 456 | |         input: "abc abc",
[INFO] [stdout] 457 | |         rule: Rule::repeat_min_max_atomic,
[INFO] [stdout] 458 | |         tokens: []
[INFO] [stdout] 459 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:454:5
[INFO] [stdout]     |
[INFO] [stdout] 454 | /     parses_to! {
[INFO] [stdout] 455 | |         parser: GrammarParser,
[INFO] [stdout] 456 | |         input: "abc abc",
[INFO] [stdout] 457 | |         rule: Rule::repeat_min_max_atomic,
[INFO] [stdout] 458 | |         tokens: []
[INFO] [stdout] 459 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:464:5
[INFO] [stdout]     |
[INFO] [stdout] 464 | /     parses_to! {
[INFO] [stdout] 465 | |         parser: GrammarParser,
[INFO] [stdout] 466 | |         input: "abc abc",
[INFO] [stdout] 467 | |         rule: Rule::repeat_exact,
[INFO] [stdout] ...   |
[INFO] [stdout] 473 | |         ]
[INFO] [stdout] 474 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:464:5
[INFO] [stdout]     |
[INFO] [stdout] 464 | /     parses_to! {
[INFO] [stdout] 465 | |         parser: GrammarParser,
[INFO] [stdout] 466 | |         input: "abc abc",
[INFO] [stdout] 467 | |         rule: Rule::repeat_exact,
[INFO] [stdout] ...   |
[INFO] [stdout] 473 | |         ]
[INFO] [stdout] 474 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:480:5
[INFO] [stdout]     |
[INFO] [stdout] 480 | /     parses_to! {
[INFO] [stdout] 481 | |         parser: GrammarParser,
[INFO] [stdout] 482 | |         input: "abc",
[INFO] [stdout] 483 | |         rule: Rule::repeat_min,
[INFO] [stdout] 484 | |         tokens: []
[INFO] [stdout] 485 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:480:5
[INFO] [stdout]     |
[INFO] [stdout] 480 | /     parses_to! {
[INFO] [stdout] 481 | |         parser: GrammarParser,
[INFO] [stdout] 482 | |         input: "abc",
[INFO] [stdout] 483 | |         rule: Rule::repeat_min,
[INFO] [stdout] 484 | |         tokens: []
[INFO] [stdout] 485 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:490:5
[INFO] [stdout]     |
[INFO] [stdout] 490 | /     parses_to! {
[INFO] [stdout] 491 | |         parser: GrammarParser,
[INFO] [stdout] 492 | |         input: "abc abc",
[INFO] [stdout] 493 | |         rule: Rule::repeat_min,
[INFO] [stdout] ...   |
[INFO] [stdout] 499 | |         ]
[INFO] [stdout] 500 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:490:5
[INFO] [stdout]     |
[INFO] [stdout] 490 | /     parses_to! {
[INFO] [stdout] 491 | |         parser: GrammarParser,
[INFO] [stdout] 492 | |         input: "abc abc",
[INFO] [stdout] 493 | |         rule: Rule::repeat_min,
[INFO] [stdout] ...   |
[INFO] [stdout] 499 | |         ]
[INFO] [stdout] 500 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:505:5
[INFO] [stdout]     |
[INFO] [stdout] 505 | /     parses_to! {
[INFO] [stdout] 506 | |         parser: GrammarParser,
[INFO] [stdout] 507 | |         input: "abc abc  abc",
[INFO] [stdout] 508 | |         rule: Rule::repeat_min,
[INFO] [stdout] ...   |
[INFO] [stdout] 515 | |         ]
[INFO] [stdout] 516 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:505:5
[INFO] [stdout]     |
[INFO] [stdout] 505 | /     parses_to! {
[INFO] [stdout] 506 | |         parser: GrammarParser,
[INFO] [stdout] 507 | |         input: "abc abc  abc",
[INFO] [stdout] 508 | |         rule: Rule::repeat_min,
[INFO] [stdout] ...   |
[INFO] [stdout] 515 | |         ]
[INFO] [stdout] 516 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:522:5
[INFO] [stdout]     |
[INFO] [stdout] 522 | /     parses_to! {
[INFO] [stdout] 523 | |         parser: GrammarParser,
[INFO] [stdout] 524 | |         input: "abc",
[INFO] [stdout] 525 | |         rule: Rule::repeat_min_atomic,
[INFO] [stdout] 526 | |         tokens: []
[INFO] [stdout] 527 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:522:5
[INFO] [stdout]     |
[INFO] [stdout] 522 | /     parses_to! {
[INFO] [stdout] 523 | |         parser: GrammarParser,
[INFO] [stdout] 524 | |         input: "abc",
[INFO] [stdout] 525 | |         rule: Rule::repeat_min_atomic,
[INFO] [stdout] 526 | |         tokens: []
[INFO] [stdout] 527 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:532:5
[INFO] [stdout]     |
[INFO] [stdout] 532 | /     parses_to! {
[INFO] [stdout] 533 | |         parser: GrammarParser,
[INFO] [stdout] 534 | |         input: "abcabc",
[INFO] [stdout] 535 | |         rule: Rule::repeat_min_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 538 | |         ]
[INFO] [stdout] 539 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:532:5
[INFO] [stdout]     |
[INFO] [stdout] 532 | /     parses_to! {
[INFO] [stdout] 533 | |         parser: GrammarParser,
[INFO] [stdout] 534 | |         input: "abcabc",
[INFO] [stdout] 535 | |         rule: Rule::repeat_min_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 538 | |         ]
[INFO] [stdout] 539 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:544:5
[INFO] [stdout]     |
[INFO] [stdout] 544 | /     parses_to! {
[INFO] [stdout] 545 | |         parser: GrammarParser,
[INFO] [stdout] 546 | |         input: "abcabcabc",
[INFO] [stdout] 547 | |         rule: Rule::repeat_min_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 550 | |         ]
[INFO] [stdout] 551 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:544:5
[INFO] [stdout]     |
[INFO] [stdout] 544 | /     parses_to! {
[INFO] [stdout] 545 | |         parser: GrammarParser,
[INFO] [stdout] 546 | |         input: "abcabcabc",
[INFO] [stdout] 547 | |         rule: Rule::repeat_min_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 550 | |         ]
[INFO] [stdout] 551 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:557:5
[INFO] [stdout]     |
[INFO] [stdout] 557 | /     parses_to! {
[INFO] [stdout] 558 | |         parser: GrammarParser,
[INFO] [stdout] 559 | |         input: "abc abc",
[INFO] [stdout] 560 | |         rule: Rule::repeat_min_atomic,
[INFO] [stdout] 561 | |         tokens: []
[INFO] [stdout] 562 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:557:5
[INFO] [stdout]     |
[INFO] [stdout] 557 | /     parses_to! {
[INFO] [stdout] 558 | |         parser: GrammarParser,
[INFO] [stdout] 559 | |         input: "abc abc",
[INFO] [stdout] 560 | |         rule: Rule::repeat_min_atomic,
[INFO] [stdout] 561 | |         tokens: []
[INFO] [stdout] 562 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:567:5
[INFO] [stdout]     |
[INFO] [stdout] 567 | /     parses_to! {
[INFO] [stdout] 568 | |         parser: GrammarParser,
[INFO] [stdout] 569 | |         input: "abc",
[INFO] [stdout] 570 | |         rule: Rule::repeat_max,
[INFO] [stdout] ...   |
[INFO] [stdout] 575 | |         ]
[INFO] [stdout] 576 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:567:5
[INFO] [stdout]     |
[INFO] [stdout] 567 | /     parses_to! {
[INFO] [stdout] 568 | |         parser: GrammarParser,
[INFO] [stdout] 569 | |         input: "abc",
[INFO] [stdout] 570 | |         rule: Rule::repeat_max,
[INFO] [stdout] ...   |
[INFO] [stdout] 575 | |         ]
[INFO] [stdout] 576 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:581:5
[INFO] [stdout]     |
[INFO] [stdout] 581 | /     parses_to! {
[INFO] [stdout] 582 | |         parser: GrammarParser,
[INFO] [stdout] 583 | |         input: "abc abc",
[INFO] [stdout] 584 | |         rule: Rule::repeat_max,
[INFO] [stdout] ...   |
[INFO] [stdout] 590 | |         ]
[INFO] [stdout] 591 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:581:5
[INFO] [stdout]     |
[INFO] [stdout] 581 | /     parses_to! {
[INFO] [stdout] 582 | |         parser: GrammarParser,
[INFO] [stdout] 583 | |         input: "abc abc",
[INFO] [stdout] 584 | |         rule: Rule::repeat_max,
[INFO] [stdout] ...   |
[INFO] [stdout] 590 | |         ]
[INFO] [stdout] 591 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:597:5
[INFO] [stdout]     |
[INFO] [stdout] 597 | /     parses_to! {
[INFO] [stdout] 598 | |         parser: GrammarParser,
[INFO] [stdout] 599 | |         input: "abc abc",
[INFO] [stdout] 600 | |         rule: Rule::repeat_max,
[INFO] [stdout] 601 | |         tokens: []
[INFO] [stdout] 602 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:597:5
[INFO] [stdout]     |
[INFO] [stdout] 597 | /     parses_to! {
[INFO] [stdout] 598 | |         parser: GrammarParser,
[INFO] [stdout] 599 | |         input: "abc abc",
[INFO] [stdout] 600 | |         rule: Rule::repeat_max,
[INFO] [stdout] 601 | |         tokens: []
[INFO] [stdout] 602 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:607:5
[INFO] [stdout]     |
[INFO] [stdout] 607 | /     parses_to! {
[INFO] [stdout] 608 | |         parser: GrammarParser,
[INFO] [stdout] 609 | |         input: "abc",
[INFO] [stdout] 610 | |         rule: Rule::repeat_max_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 613 | |         ]
[INFO] [stdout] 614 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:607:5
[INFO] [stdout]     |
[INFO] [stdout] 607 | /     parses_to! {
[INFO] [stdout] 608 | |         parser: GrammarParser,
[INFO] [stdout] 609 | |         input: "abc",
[INFO] [stdout] 610 | |         rule: Rule::repeat_max_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 613 | |         ]
[INFO] [stdout] 614 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:619:5
[INFO] [stdout]     |
[INFO] [stdout] 619 | /     parses_to! {
[INFO] [stdout] 620 | |         parser: GrammarParser,
[INFO] [stdout] 621 | |         input: "abcabc",
[INFO] [stdout] 622 | |         rule: Rule::repeat_max_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 625 | |         ]
[INFO] [stdout] 626 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:619:5
[INFO] [stdout]     |
[INFO] [stdout] 619 | /     parses_to! {
[INFO] [stdout] 620 | |         parser: GrammarParser,
[INFO] [stdout] 621 | |         input: "abcabc",
[INFO] [stdout] 622 | |         rule: Rule::repeat_max_atomic,
[INFO] [stdout] ...   |
[INFO] [stdout] 625 | |         ]
[INFO] [stdout] 626 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:632:5
[INFO] [stdout]     |
[INFO] [stdout] 632 | /     parses_to! {
[INFO] [stdout] 633 | |         parser: GrammarParser,
[INFO] [stdout] 634 | |         input: "abcabcabc",
[INFO] [stdout] 635 | |         rule: Rule::repeat_max_atomic,
[INFO] [stdout] 636 | |         tokens: []
[INFO] [stdout] 637 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:632:5
[INFO] [stdout]     |
[INFO] [stdout] 632 | /     parses_to! {
[INFO] [stdout] 633 | |         parser: GrammarParser,
[INFO] [stdout] 634 | |         input: "abcabcabc",
[INFO] [stdout] 635 | |         rule: Rule::repeat_max_atomic,
[INFO] [stdout] 636 | |         tokens: []
[INFO] [stdout] 637 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:643:5
[INFO] [stdout]     |
[INFO] [stdout] 643 | /     parses_to! {
[INFO] [stdout] 644 | |         parser: GrammarParser,
[INFO] [stdout] 645 | |         input: "abc abc",
[INFO] [stdout] 646 | |         rule: Rule::repeat_max_atomic,
[INFO] [stdout] 647 | |         tokens: []
[INFO] [stdout] 648 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:643:5
[INFO] [stdout]     |
[INFO] [stdout] 643 | /     parses_to! {
[INFO] [stdout] 644 | |         parser: GrammarParser,
[INFO] [stdout] 645 | |         input: "abc abc",
[INFO] [stdout] 646 | |         rule: Rule::repeat_max_atomic,
[INFO] [stdout] 647 | |         tokens: []
[INFO] [stdout] 648 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:653:5
[INFO] [stdout]     |
[INFO] [stdout] 653 | /     parses_to! {
[INFO] [stdout] 654 | |         parser: GrammarParser,
[INFO] [stdout] 655 | |         input: "abc$$$ $$$abc",
[INFO] [stdout] 656 | |         rule: Rule::repeat_once,
[INFO] [stdout] ...   |
[INFO] [stdout] 662 | |         ]
[INFO] [stdout] 663 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:653:5
[INFO] [stdout]     |
[INFO] [stdout] 653 | /     parses_to! {
[INFO] [stdout] 654 | |         parser: GrammarParser,
[INFO] [stdout] 655 | |         input: "abc$$$ $$$abc",
[INFO] [stdout] 656 | |         rule: Rule::repeat_once,
[INFO] [stdout] ...   |
[INFO] [stdout] 662 | |         ]
[INFO] [stdout] 663 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:668:5
[INFO] [stdout]     |
[INFO] [stdout] 668 | /     parses_to! {
[INFO] [stdout] 669 | |         parser: GrammarParser,
[INFO] [stdout] 670 | |         input: "abc",
[INFO] [stdout] 671 | |         rule: Rule::soi_at_start,
[INFO] [stdout] ...   |
[INFO] [stdout] 676 | |         ]
[INFO] [stdout] 677 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:668:5
[INFO] [stdout]     |
[INFO] [stdout] 668 | /     parses_to! {
[INFO] [stdout] 669 | |         parser: GrammarParser,
[INFO] [stdout] 670 | |         input: "abc",
[INFO] [stdout] 671 | |         rule: Rule::soi_at_start,
[INFO] [stdout] ...   |
[INFO] [stdout] 676 | |         ]
[INFO] [stdout] 677 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:682:5
[INFO] [stdout]     |
[INFO] [stdout] 682 | /     parses_to! {
[INFO] [stdout] 683 | |         parser: GrammarParser,
[INFO] [stdout] 684 | |         input: "0111",
[INFO] [stdout] 685 | |         rule: Rule::peek_,
[INFO] [stdout] ...   |
[INFO] [stdout] 691 | |         ]
[INFO] [stdout] 692 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:682:5
[INFO] [stdout]     |
[INFO] [stdout] 682 | /     parses_to! {
[INFO] [stdout] 683 | |         parser: GrammarParser,
[INFO] [stdout] 684 | |         input: "0111",
[INFO] [stdout] 685 | |         rule: Rule::peek_,
[INFO] [stdout] ...   |
[INFO] [stdout] 691 | |         ]
[INFO] [stdout] 692 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:697:5
[INFO] [stdout]     |
[INFO] [stdout] 697 | /     parses_to! {
[INFO] [stdout] 698 | |         parser: GrammarParser,
[INFO] [stdout] 699 | |         input: "0110",
[INFO] [stdout] 700 | |         rule: Rule::peek_all,
[INFO] [stdout] ...   |
[INFO] [stdout] 706 | |         ]
[INFO] [stdout] 707 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:697:5
[INFO] [stdout]     |
[INFO] [stdout] 697 | /     parses_to! {
[INFO] [stdout] 698 | |         parser: GrammarParser,
[INFO] [stdout] 699 | |         input: "0110",
[INFO] [stdout] 700 | |         rule: Rule::peek_all,
[INFO] [stdout] ...   |
[INFO] [stdout] 706 | |         ]
[INFO] [stdout] 707 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:712:5
[INFO] [stdout]     |
[INFO] [stdout] 712 | /     parses_to! {
[INFO] [stdout] 713 | |         parser: GrammarParser,
[INFO] [stdout] 714 | |         input: "0123412",
[INFO] [stdout] 715 | |         rule: Rule::peek_slice_23,
[INFO] [stdout] ...   |
[INFO] [stdout] 724 | |         ]
[INFO] [stdout] 725 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:712:5
[INFO] [stdout]     |
[INFO] [stdout] 712 | /     parses_to! {
[INFO] [stdout] 713 | |         parser: GrammarParser,
[INFO] [stdout] 714 | |         input: "0123412",
[INFO] [stdout] 715 | |         rule: Rule::peek_slice_23,
[INFO] [stdout] ...   |
[INFO] [stdout] 724 | |         ]
[INFO] [stdout] 725 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:730:5
[INFO] [stdout]     |
[INFO] [stdout] 730 | /     parses_to! {
[INFO] [stdout] 731 | |         parser: GrammarParser,
[INFO] [stdout] 732 | |         input: "0110",
[INFO] [stdout] 733 | |         rule: Rule::pop_,
[INFO] [stdout] ...   |
[INFO] [stdout] 739 | |         ]
[INFO] [stdout] 740 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:730:5
[INFO] [stdout]     |
[INFO] [stdout] 730 | /     parses_to! {
[INFO] [stdout] 731 | |         parser: GrammarParser,
[INFO] [stdout] 732 | |         input: "0110",
[INFO] [stdout] 733 | |         rule: Rule::pop_,
[INFO] [stdout] ...   |
[INFO] [stdout] 739 | |         ]
[INFO] [stdout] 740 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:745:5
[INFO] [stdout]     |
[INFO] [stdout] 745 | /     parses_to! {
[INFO] [stdout] 746 | |         parser: GrammarParser,
[INFO] [stdout] 747 | |         input: "0110",
[INFO] [stdout] 748 | |         rule: Rule::pop_all,
[INFO] [stdout] ...   |
[INFO] [stdout] 754 | |         ]
[INFO] [stdout] 755 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:745:5
[INFO] [stdout]     |
[INFO] [stdout] 745 | /     parses_to! {
[INFO] [stdout] 746 | |         parser: GrammarParser,
[INFO] [stdout] 747 | |         input: "0110",
[INFO] [stdout] 748 | |         rule: Rule::pop_all,
[INFO] [stdout] ...   |
[INFO] [stdout] 754 | |         ]
[INFO] [stdout] 755 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:760:5
[INFO] [stdout]     |
[INFO] [stdout] 760 | /     parses_to! {
[INFO] [stdout] 761 | |         parser: GrammarParser,
[INFO] [stdout] 762 | |         input: "010",
[INFO] [stdout] 763 | |         rule: Rule::pop_fail,
[INFO] [stdout] ...   |
[INFO] [stdout] 769 | |         ]
[INFO] [stdout] 770 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:760:5
[INFO] [stdout]     |
[INFO] [stdout] 760 | /     parses_to! {
[INFO] [stdout] 761 | |         parser: GrammarParser,
[INFO] [stdout] 762 | |         input: "010",
[INFO] [stdout] 763 | |         rule: Rule::pop_fail,
[INFO] [stdout] ...   |
[INFO] [stdout] 769 | |         ]
[INFO] [stdout] 770 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:775:5
[INFO] [stdout]     |
[INFO] [stdout] 775 | /     parses_to! {
[INFO] [stdout] 776 | |         parser: GrammarParser,
[INFO] [stdout] 777 | |         input: "a,b,c,cba",
[INFO] [stdout] 778 | |         rule: Rule::repeat_mutate_stack,
[INFO] [stdout] ...   |
[INFO] [stdout] 781 | |         ]
[INFO] [stdout] 782 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:775:5
[INFO] [stdout]     |
[INFO] [stdout] 775 | /     parses_to! {
[INFO] [stdout] 776 | |         parser: GrammarParser,
[INFO] [stdout] 777 | |         input: "a,b,c,cba",
[INFO] [stdout] 778 | |         rule: Rule::repeat_mutate_stack,
[INFO] [stdout] ...   |
[INFO] [stdout] 781 | |         ]
[INFO] [stdout] 782 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:787:5
[INFO] [stdout]     |
[INFO] [stdout] 787 | /     parses_to! {
[INFO] [stdout] 788 | |         parser: GrammarParser,
[INFO] [stdout] 789 | |         input: "a,b,c,cba",
[INFO] [stdout] 790 | |         rule: Rule::stack_resume_after_fail,
[INFO] [stdout] ...   |
[INFO] [stdout] 795 | |         ]
[INFO] [stdout] 796 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:787:5
[INFO] [stdout]     |
[INFO] [stdout] 787 | /     parses_to! {
[INFO] [stdout] 788 | |         parser: GrammarParser,
[INFO] [stdout] 789 | |         input: "a,b,c,cba",
[INFO] [stdout] 790 | |         rule: Rule::stack_resume_after_fail,
[INFO] [stdout] ...   |
[INFO] [stdout] 795 | |         ]
[INFO] [stdout] 796 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:801:5
[INFO] [stdout]     |
[INFO] [stdout] 801 | /     parses_to! {
[INFO] [stdout] 802 | |         parser: GrammarParser,
[INFO] [stdout] 803 | |         input: "a",
[INFO] [stdout] 804 | |         rule: Rule::checkpoint_restore,
[INFO] [stdout] ...   |
[INFO] [stdout] 807 | |         ]
[INFO] [stdout] 808 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:801:5
[INFO] [stdout]     |
[INFO] [stdout] 801 | /     parses_to! {
[INFO] [stdout] 802 | |         parser: GrammarParser,
[INFO] [stdout] 803 | |         input: "a",
[INFO] [stdout] 804 | |         rule: Rule::checkpoint_restore,
[INFO] [stdout] ...   |
[INFO] [stdout] 807 | |         ]
[INFO] [stdout] 808 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:813:5
[INFO] [stdout]     |
[INFO] [stdout] 813 | /     parses_to! {
[INFO] [stdout] 814 | |         parser: GrammarParser,
[INFO] [stdout] 815 | |         input: "6",
[INFO] [stdout] 816 | |         rule: Rule::ascii_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 819 | |         ]
[INFO] [stdout] 820 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:813:5
[INFO] [stdout]     |
[INFO] [stdout] 813 | /     parses_to! {
[INFO] [stdout] 814 | |         parser: GrammarParser,
[INFO] [stdout] 815 | |         input: "6",
[INFO] [stdout] 816 | |         rule: Rule::ascii_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 819 | |         ]
[INFO] [stdout] 820 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:825:5
[INFO] [stdout]     |
[INFO] [stdout] 825 | /     parses_to! {
[INFO] [stdout] 826 | |         parser: GrammarParser,
[INFO] [stdout] 827 | |         input: "5",
[INFO] [stdout] 828 | |         rule: Rule::ascii_nonzero_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 831 | |         ]
[INFO] [stdout] 832 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:825:5
[INFO] [stdout]     |
[INFO] [stdout] 825 | /     parses_to! {
[INFO] [stdout] 826 | |         parser: GrammarParser,
[INFO] [stdout] 827 | |         input: "5",
[INFO] [stdout] 828 | |         rule: Rule::ascii_nonzero_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 831 | |         ]
[INFO] [stdout] 832 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:837:5
[INFO] [stdout]     |
[INFO] [stdout] 837 | /     parses_to! {
[INFO] [stdout] 838 | |         parser: GrammarParser,
[INFO] [stdout] 839 | |         input: "1",
[INFO] [stdout] 840 | |         rule: Rule::ascii_bin_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 843 | |         ]
[INFO] [stdout] 844 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:837:5
[INFO] [stdout]     |
[INFO] [stdout] 837 | /     parses_to! {
[INFO] [stdout] 838 | |         parser: GrammarParser,
[INFO] [stdout] 839 | |         input: "1",
[INFO] [stdout] 840 | |         rule: Rule::ascii_bin_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 843 | |         ]
[INFO] [stdout] 844 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:849:5
[INFO] [stdout]     |
[INFO] [stdout] 849 | /     parses_to! {
[INFO] [stdout] 850 | |         parser: GrammarParser,
[INFO] [stdout] 851 | |         input: "3",
[INFO] [stdout] 852 | |         rule: Rule::ascii_oct_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 855 | |         ]
[INFO] [stdout] 856 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:849:5
[INFO] [stdout]     |
[INFO] [stdout] 849 | /     parses_to! {
[INFO] [stdout] 850 | |         parser: GrammarParser,
[INFO] [stdout] 851 | |         input: "3",
[INFO] [stdout] 852 | |         rule: Rule::ascii_oct_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 855 | |         ]
[INFO] [stdout] 856 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:861:5
[INFO] [stdout]     |
[INFO] [stdout] 861 | /     parses_to! {
[INFO] [stdout] 862 | |         parser: GrammarParser,
[INFO] [stdout] 863 | |         input: "6bC",
[INFO] [stdout] 864 | |         rule: Rule::ascii_hex_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 867 | |         ]
[INFO] [stdout] 868 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:861:5
[INFO] [stdout]     |
[INFO] [stdout] 861 | /     parses_to! {
[INFO] [stdout] 862 | |         parser: GrammarParser,
[INFO] [stdout] 863 | |         input: "6bC",
[INFO] [stdout] 864 | |         rule: Rule::ascii_hex_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 867 | |         ]
[INFO] [stdout] 868 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:873:5
[INFO] [stdout]     |
[INFO] [stdout] 873 | /     parses_to! {
[INFO] [stdout] 874 | |         parser: GrammarParser,
[INFO] [stdout] 875 | |         input: "a",
[INFO] [stdout] 876 | |         rule: Rule::ascii_alpha_lowers,
[INFO] [stdout] ...   |
[INFO] [stdout] 879 | |         ]
[INFO] [stdout] 880 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:873:5
[INFO] [stdout]     |
[INFO] [stdout] 873 | /     parses_to! {
[INFO] [stdout] 874 | |         parser: GrammarParser,
[INFO] [stdout] 875 | |         input: "a",
[INFO] [stdout] 876 | |         rule: Rule::ascii_alpha_lowers,
[INFO] [stdout] ...   |
[INFO] [stdout] 879 | |         ]
[INFO] [stdout] 880 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:885:5
[INFO] [stdout]     |
[INFO] [stdout] 885 | /     parses_to! {
[INFO] [stdout] 886 | |         parser: GrammarParser,
[INFO] [stdout] 887 | |         input: "K",
[INFO] [stdout] 888 | |         rule: Rule::ascii_alpha_uppers,
[INFO] [stdout] ...   |
[INFO] [stdout] 891 | |         ]
[INFO] [stdout] 892 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:885:5
[INFO] [stdout]     |
[INFO] [stdout] 885 | /     parses_to! {
[INFO] [stdout] 886 | |         parser: GrammarParser,
[INFO] [stdout] 887 | |         input: "K",
[INFO] [stdout] 888 | |         rule: Rule::ascii_alpha_uppers,
[INFO] [stdout] ...   |
[INFO] [stdout] 891 | |         ]
[INFO] [stdout] 892 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:897:5
[INFO] [stdout]     |
[INFO] [stdout] 897 | /     parses_to! {
[INFO] [stdout] 898 | |         parser: GrammarParser,
[INFO] [stdout] 899 | |         input: "wF",
[INFO] [stdout] 900 | |         rule: Rule::ascii_alphas,
[INFO] [stdout] ...   |
[INFO] [stdout] 903 | |         ]
[INFO] [stdout] 904 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:897:5
[INFO] [stdout]     |
[INFO] [stdout] 897 | /     parses_to! {
[INFO] [stdout] 898 | |         parser: GrammarParser,
[INFO] [stdout] 899 | |         input: "wF",
[INFO] [stdout] 900 | |         rule: Rule::ascii_alphas,
[INFO] [stdout] ...   |
[INFO] [stdout] 903 | |         ]
[INFO] [stdout] 904 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:909:5
[INFO] [stdout]     |
[INFO] [stdout] 909 | /     parses_to! {
[INFO] [stdout] 910 | |         parser: GrammarParser,
[INFO] [stdout] 911 | |         input: "4jU",
[INFO] [stdout] 912 | |         rule: Rule::ascii_alphanumerics,
[INFO] [stdout] ...   |
[INFO] [stdout] 915 | |         ]
[INFO] [stdout] 916 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:909:5
[INFO] [stdout]     |
[INFO] [stdout] 909 | /     parses_to! {
[INFO] [stdout] 910 | |         parser: GrammarParser,
[INFO] [stdout] 911 | |         input: "4jU",
[INFO] [stdout] 912 | |         rule: Rule::ascii_alphanumerics,
[INFO] [stdout] ...   |
[INFO] [stdout] 915 | |         ]
[INFO] [stdout] 916 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:921:5
[INFO] [stdout]     |
[INFO] [stdout] 921 | /     parses_to! {
[INFO] [stdout] 922 | |         parser: GrammarParser,
[INFO] [stdout] 923 | |         input: "x02",
[INFO] [stdout] 924 | |         rule: Rule::asciis,
[INFO] [stdout] ...   |
[INFO] [stdout] 927 | |         ]
[INFO] [stdout] 928 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:921:5
[INFO] [stdout]     |
[INFO] [stdout] 921 | /     parses_to! {
[INFO] [stdout] 922 | |         parser: GrammarParser,
[INFO] [stdout] 923 | |         input: "x02",
[INFO] [stdout] 924 | |         rule: Rule::asciis,
[INFO] [stdout] ...   |
[INFO] [stdout] 927 | |         ]
[INFO] [stdout] 928 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:933:5
[INFO] [stdout]     |
[INFO] [stdout] 933 | /     parses_to! {
[INFO] [stdout] 934 | |         parser: GrammarParser,
[INFO] [stdout] 935 | |         input: "\n\r\n\r",
[INFO] [stdout] 936 | |         rule: Rule::newline,
[INFO] [stdout] ...   |
[INFO] [stdout] 939 | |         ]
[INFO] [stdout] 940 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:933:5
[INFO] [stdout]     |
[INFO] [stdout] 933 | /     parses_to! {
[INFO] [stdout] 934 | |         parser: GrammarParser,
[INFO] [stdout] 935 | |         input: "\n\r\n\r",
[INFO] [stdout] 936 | |         rule: Rule::newline,
[INFO] [stdout] ...   |
[INFO] [stdout] 939 | |         ]
[INFO] [stdout] 940 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:945:5
[INFO] [stdout]     |
[INFO] [stdout] 945 | /     parses_to! {
[INFO] [stdout] 946 | |         parser: GrammarParser,
[INFO] [stdout] 947 | |         input: "نامهای",
[INFO] [stdout] 948 | |         rule: Rule::unicode,
[INFO] [stdout] ...   |
[INFO] [stdout] 951 | |         ]
[INFO] [stdout] 952 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:945:5
[INFO] [stdout]     |
[INFO] [stdout] 945 | /     parses_to! {
[INFO] [stdout] 946 | |         parser: GrammarParser,
[INFO] [stdout] 947 | |         input: "نامهای",
[INFO] [stdout] 948 | |         rule: Rule::unicode,
[INFO] [stdout] ...   |
[INFO] [stdout] 951 | |         ]
[INFO] [stdout] 952 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:957:5
[INFO] [stdout]     |
[INFO] [stdout] 957 | /     parses_to! {
[INFO] [stdout] 958 | |         parser: GrammarParser,
[INFO] [stdout] 959 | |         input: "shadows builtin",
[INFO] [stdout] 960 | |         rule: Rule::SYMBOL,
[INFO] [stdout] ...   |
[INFO] [stdout] 963 | |         ]
[INFO] [stdout] 964 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/grammar.rs:957:5
[INFO] [stdout]     |
[INFO] [stdout] 957 | /     parses_to! {
[INFO] [stdout] 958 | |         parser: GrammarParser,
[INFO] [stdout] 959 | |         input: "shadows builtin",
[INFO] [stdout] 960 | |         rule: Rule::SYMBOL,
[INFO] [stdout] ...   |
[INFO] [stdout] 963 | |         ]
[INFO] [stdout] 964 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 146 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.04s
[INFO] running `Command { std: "docker" "inspect" "10ae216c115f6a91b12bf8606ce095f58c58bc51251150d32e9fc9d4afa7596f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10ae216c115f6a91b12bf8606ce095f58c58bc51251150d32e9fc9d4afa7596f", kill_on_drop: false }`
[INFO] [stdout] 10ae216c115f6a91b12bf8606ce095f58c58bc51251150d32e9fc9d4afa7596f