[INFO] fetching crate pest_derive 2.1.0...
[INFO] testing pest_derive-2.1.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate pest_derive 2.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate pest_derive 2.1.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pest_derive 2.1.0
[INFO] finished tweaking crates.io crate pest_derive 2.1.0
[INFO] tweaked toml for crates.io crate pest_derive 2.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bbc99ffd13aa6788fc7ce8b9fe1b7051d56437754966cb85413330764489621
[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" "9bbc99ffd13aa6788fc7ce8b9fe1b7051d56437754966cb85413330764489621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bbc99ffd13aa6788fc7ce8b9fe1b7051d56437754966cb85413330764489621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bbc99ffd13aa6788fc7ce8b9fe1b7051d56437754966cb85413330764489621", kill_on_drop: false }`
[INFO] [stdout] 9bbc99ffd13aa6788fc7ce8b9fe1b7051d56437754966cb85413330764489621
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c9399fda22594797de178ae7ab6f85c8338d73d42de08d1aa7d06f6b0e43748
[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" "4c9399fda22594797de178ae7ab6f85c8338d73d42de08d1aa7d06f6b0e43748", kill_on_drop: false }`
[INFO] [stderr]    Compiling pest_derive v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `Command { std: "docker" "inspect" "4c9399fda22594797de178ae7ab6f85c8338d73d42de08d1aa7d06f6b0e43748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c9399fda22594797de178ae7ab6f85c8338d73d42de08d1aa7d06f6b0e43748", kill_on_drop: false }`
[INFO] [stdout] 4c9399fda22594797de178ae7ab6f85c8338d73d42de08d1aa7d06f6b0e43748
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eece46fd64aa1f71fdcb5440a207910951416d725bc88a7249b2fe77efdd1cb1
[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" "eece46fd64aa1f71fdcb5440a207910951416d725bc88a7249b2fe77efdd1cb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling pest_derive v2.1.0 (/opt/rustwide/workdir)
[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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[INFO] [stdout]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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: 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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]    = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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 assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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",
[INFO] [stdout] 790 | |         rule: Rule::checkpoint_restore,
[INFO] [stdout] ...   |
[INFO] [stdout] 793 | |         ]
[INFO] [stdout] 794 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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",
[INFO] [stdout] 790 | |         rule: Rule::checkpoint_restore,
[INFO] [stdout] ...   |
[INFO] [stdout] 793 | |         ]
[INFO] [stdout] 794 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:799:5
[INFO] [stdout]     |
[INFO] [stdout] 799 | /     parses_to! {
[INFO] [stdout] 800 | |         parser: GrammarParser,
[INFO] [stdout] 801 | |         input: "6",
[INFO] [stdout] 802 | |         rule: Rule::ascii_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 805 | |         ]
[INFO] [stdout] 806 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:799:5
[INFO] [stdout]     |
[INFO] [stdout] 799 | /     parses_to! {
[INFO] [stdout] 800 | |         parser: GrammarParser,
[INFO] [stdout] 801 | |         input: "6",
[INFO] [stdout] 802 | |         rule: Rule::ascii_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 805 | |         ]
[INFO] [stdout] 806 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:811:5
[INFO] [stdout]     |
[INFO] [stdout] 811 | /     parses_to! {
[INFO] [stdout] 812 | |         parser: GrammarParser,
[INFO] [stdout] 813 | |         input: "5",
[INFO] [stdout] 814 | |         rule: Rule::ascii_nonzero_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 817 | |         ]
[INFO] [stdout] 818 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:811:5
[INFO] [stdout]     |
[INFO] [stdout] 811 | /     parses_to! {
[INFO] [stdout] 812 | |         parser: GrammarParser,
[INFO] [stdout] 813 | |         input: "5",
[INFO] [stdout] 814 | |         rule: Rule::ascii_nonzero_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 817 | |         ]
[INFO] [stdout] 818 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:823:5
[INFO] [stdout]     |
[INFO] [stdout] 823 | /     parses_to! {
[INFO] [stdout] 824 | |         parser: GrammarParser,
[INFO] [stdout] 825 | |         input: "1",
[INFO] [stdout] 826 | |         rule: Rule::ascii_bin_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 829 | |         ]
[INFO] [stdout] 830 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:823:5
[INFO] [stdout]     |
[INFO] [stdout] 823 | /     parses_to! {
[INFO] [stdout] 824 | |         parser: GrammarParser,
[INFO] [stdout] 825 | |         input: "1",
[INFO] [stdout] 826 | |         rule: Rule::ascii_bin_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 829 | |         ]
[INFO] [stdout] 830 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:835:5
[INFO] [stdout]     |
[INFO] [stdout] 835 | /     parses_to! {
[INFO] [stdout] 836 | |         parser: GrammarParser,
[INFO] [stdout] 837 | |         input: "3",
[INFO] [stdout] 838 | |         rule: Rule::ascii_oct_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 841 | |         ]
[INFO] [stdout] 842 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:835:5
[INFO] [stdout]     |
[INFO] [stdout] 835 | /     parses_to! {
[INFO] [stdout] 836 | |         parser: GrammarParser,
[INFO] [stdout] 837 | |         input: "3",
[INFO] [stdout] 838 | |         rule: Rule::ascii_oct_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 841 | |         ]
[INFO] [stdout] 842 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:847:5
[INFO] [stdout]     |
[INFO] [stdout] 847 | /     parses_to! {
[INFO] [stdout] 848 | |         parser: GrammarParser,
[INFO] [stdout] 849 | |         input: "6bC",
[INFO] [stdout] 850 | |         rule: Rule::ascii_hex_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 853 | |         ]
[INFO] [stdout] 854 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:847:5
[INFO] [stdout]     |
[INFO] [stdout] 847 | /     parses_to! {
[INFO] [stdout] 848 | |         parser: GrammarParser,
[INFO] [stdout] 849 | |         input: "6bC",
[INFO] [stdout] 850 | |         rule: Rule::ascii_hex_digits,
[INFO] [stdout] ...   |
[INFO] [stdout] 853 | |         ]
[INFO] [stdout] 854 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:859:5
[INFO] [stdout]     |
[INFO] [stdout] 859 | /     parses_to! {
[INFO] [stdout] 860 | |         parser: GrammarParser,
[INFO] [stdout] 861 | |         input: "a",
[INFO] [stdout] 862 | |         rule: Rule::ascii_alpha_lowers,
[INFO] [stdout] ...   |
[INFO] [stdout] 865 | |         ]
[INFO] [stdout] 866 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:859:5
[INFO] [stdout]     |
[INFO] [stdout] 859 | /     parses_to! {
[INFO] [stdout] 860 | |         parser: GrammarParser,
[INFO] [stdout] 861 | |         input: "a",
[INFO] [stdout] 862 | |         rule: Rule::ascii_alpha_lowers,
[INFO] [stdout] ...   |
[INFO] [stdout] 865 | |         ]
[INFO] [stdout] 866 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:871:5
[INFO] [stdout]     |
[INFO] [stdout] 871 | /     parses_to! {
[INFO] [stdout] 872 | |         parser: GrammarParser,
[INFO] [stdout] 873 | |         input: "K",
[INFO] [stdout] 874 | |         rule: Rule::ascii_alpha_uppers,
[INFO] [stdout] ...   |
[INFO] [stdout] 877 | |         ]
[INFO] [stdout] 878 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:871:5
[INFO] [stdout]     |
[INFO] [stdout] 871 | /     parses_to! {
[INFO] [stdout] 872 | |         parser: GrammarParser,
[INFO] [stdout] 873 | |         input: "K",
[INFO] [stdout] 874 | |         rule: Rule::ascii_alpha_uppers,
[INFO] [stdout] ...   |
[INFO] [stdout] 877 | |         ]
[INFO] [stdout] 878 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:883:5
[INFO] [stdout]     |
[INFO] [stdout] 883 | /     parses_to! {
[INFO] [stdout] 884 | |         parser: GrammarParser,
[INFO] [stdout] 885 | |         input: "wF",
[INFO] [stdout] 886 | |         rule: Rule::ascii_alphas,
[INFO] [stdout] ...   |
[INFO] [stdout] 889 | |         ]
[INFO] [stdout] 890 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:883:5
[INFO] [stdout]     |
[INFO] [stdout] 883 | /     parses_to! {
[INFO] [stdout] 884 | |         parser: GrammarParser,
[INFO] [stdout] 885 | |         input: "wF",
[INFO] [stdout] 886 | |         rule: Rule::ascii_alphas,
[INFO] [stdout] ...   |
[INFO] [stdout] 889 | |         ]
[INFO] [stdout] 890 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:895:5
[INFO] [stdout]     |
[INFO] [stdout] 895 | /     parses_to! {
[INFO] [stdout] 896 | |         parser: GrammarParser,
[INFO] [stdout] 897 | |         input: "4jU",
[INFO] [stdout] 898 | |         rule: Rule::ascii_alphanumerics,
[INFO] [stdout] ...   |
[INFO] [stdout] 901 | |         ]
[INFO] [stdout] 902 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:895:5
[INFO] [stdout]     |
[INFO] [stdout] 895 | /     parses_to! {
[INFO] [stdout] 896 | |         parser: GrammarParser,
[INFO] [stdout] 897 | |         input: "4jU",
[INFO] [stdout] 898 | |         rule: Rule::ascii_alphanumerics,
[INFO] [stdout] ...   |
[INFO] [stdout] 901 | |         ]
[INFO] [stdout] 902 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:907:5
[INFO] [stdout]     |
[INFO] [stdout] 907 | /     parses_to! {
[INFO] [stdout] 908 | |         parser: GrammarParser,
[INFO] [stdout] 909 | |         input: "x02",
[INFO] [stdout] 910 | |         rule: Rule::asciis,
[INFO] [stdout] ...   |
[INFO] [stdout] 913 | |         ]
[INFO] [stdout] 914 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:907:5
[INFO] [stdout]     |
[INFO] [stdout] 907 | /     parses_to! {
[INFO] [stdout] 908 | |         parser: GrammarParser,
[INFO] [stdout] 909 | |         input: "x02",
[INFO] [stdout] 910 | |         rule: Rule::asciis,
[INFO] [stdout] ...   |
[INFO] [stdout] 913 | |         ]
[INFO] [stdout] 914 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:919:5
[INFO] [stdout]     |
[INFO] [stdout] 919 | /     parses_to! {
[INFO] [stdout] 920 | |         parser: GrammarParser,
[INFO] [stdout] 921 | |         input: "\n\r\n\r",
[INFO] [stdout] 922 | |         rule: Rule::newline,
[INFO] [stdout] ...   |
[INFO] [stdout] 925 | |         ]
[INFO] [stdout] 926 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:919:5
[INFO] [stdout]     |
[INFO] [stdout] 919 | /     parses_to! {
[INFO] [stdout] 920 | |         parser: GrammarParser,
[INFO] [stdout] 921 | |         input: "\n\r\n\r",
[INFO] [stdout] 922 | |         rule: Rule::newline,
[INFO] [stdout] ...   |
[INFO] [stdout] 925 | |         ]
[INFO] [stdout] 926 | |     };
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:931:5
[INFO] [stdout]     |
[INFO] [stdout] 931 | /     parses_to! {
[INFO] [stdout] 932 | |         parser: GrammarParser,
[INFO] [stdout] 933 | |         input: "نامهای",
[INFO] [stdout] 934 | |         rule: Rule::unicode,
[INFO] [stdout] ...   |
[INFO] [stdout] 937 | |         ]
[INFO] [stdout] 938 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:931:5
[INFO] [stdout]     |
[INFO] [stdout] 931 | /     parses_to! {
[INFO] [stdout] 932 | |         parser: GrammarParser,
[INFO] [stdout] 933 | |         input: "نامهای",
[INFO] [stdout] 934 | |         rule: Rule::unicode,
[INFO] [stdout] ...   |
[INFO] [stdout] 937 | |         ]
[INFO] [stdout] 938 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:943:5
[INFO] [stdout]     |
[INFO] [stdout] 943 | /     parses_to! {
[INFO] [stdout] 944 | |         parser: GrammarParser,
[INFO] [stdout] 945 | |         input: "shadows builtin",
[INFO] [stdout] 946 | |         rule: Rule::SYMBOL,
[INFO] [stdout] ...   |
[INFO] [stdout] 949 | |         ]
[INFO] [stdout] 950 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (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:943:5
[INFO] [stdout]     |
[INFO] [stdout] 943 | /     parses_to! {
[INFO] [stdout] 944 | |         parser: GrammarParser,
[INFO] [stdout] 945 | |         input: "shadows builtin",
[INFO] [stdout] 946 | |         rule: Rule::SYMBOL,
[INFO] [stdout] ...   |
[INFO] [stdout] 949 | |         ]
[INFO] [stdout] 950 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 144 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.70s
[INFO] running `Command { std: "docker" "inspect" "eece46fd64aa1f71fdcb5440a207910951416d725bc88a7249b2fe77efdd1cb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eece46fd64aa1f71fdcb5440a207910951416d725bc88a7249b2fe77efdd1cb1", kill_on_drop: false }`
[INFO] [stdout] eece46fd64aa1f71fdcb5440a207910951416d725bc88a7249b2fe77efdd1cb1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a7b9834e62ca492381a8a7d0b26c245665ea874656fb806b15c58d61fa07e7f4
[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" "a7b9834e62ca492381a8a7d0b26c245665ea874656fb806b15c58d61fa07e7f4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/lists.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | /     parses_to! {
[INFO] [stderr] 22 | |         parser: ListsParser,
[INFO] [stderr] 23 | |         input: "- a",
[INFO] [stderr] 24 | |         rule: Rule::lists,
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |         ]
[INFO] [stderr] 28 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/lists.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | /     parses_to! {
[INFO] [stderr] 22 | |         parser: ListsParser,
[INFO] [stderr] 23 | |         input: "- a",
[INFO] [stderr] 24 | |         rule: Rule::lists,
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |         ]
[INFO] [stderr] 28 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/lists.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | /     parses_to! {
[INFO] [stderr] 34 | |         parser: ListsParser,
[INFO] [stderr] 35 | |         input: "- a\n- b",
[INFO] [stderr] 36 | |         rule: Rule::lists,
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |         ]
[INFO] [stderr] 41 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/lists.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | /     parses_to! {
[INFO] [stderr] 34 | |         parser: ListsParser,
[INFO] [stderr] 35 | |         input: "- a\n- b",
[INFO] [stderr] 36 | |         rule: Rule::lists,
[INFO] [stderr] ...  |
[INFO] [stderr] 40 | |         ]
[INFO] [stderr] 41 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/lists.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     parses_to! {
[INFO] [stderr] 47 | |         parser: ListsParser,
[INFO] [stderr] 48 | |         input: "  - b",
[INFO] [stderr] 49 | |         rule: Rule::children,
[INFO] [stderr] ...  |
[INFO] [stderr] 54 | |         ]
[INFO] [stderr] 55 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/lists.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     parses_to! {
[INFO] [stderr] 47 | |         parser: ListsParser,
[INFO] [stderr] 48 | |         input: "  - b",
[INFO] [stderr] 49 | |         rule: Rule::children,
[INFO] [stderr] ...  |
[INFO] [stderr] 54 | |         ]
[INFO] [stderr] 55 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/lists.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 | /     parses_to! {
[INFO] [stderr] 61 | |         parser: ListsParser,
[INFO] [stderr] 62 | |         input: "- a\n  - b",
[INFO] [stderr] 63 | |         rule: Rule::lists,
[INFO] [stderr] ...  |
[INFO] [stderr] 69 | |         ]
[INFO] [stderr] 70 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/lists.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 | /     parses_to! {
[INFO] [stderr] 61 | |         parser: ListsParser,
[INFO] [stderr] 62 | |         input: "- a\n  - b",
[INFO] [stderr] 63 | |         rule: Rule::lists,
[INFO] [stderr] ...  |
[INFO] [stderr] 69 | |         ]
[INFO] [stderr] 70 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/lists.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 | /     parses_to! {
[INFO] [stderr] 76 | |         parser: ListsParser,
[INFO] [stderr] 77 | |         input: "- a\n  - b\n  - c",
[INFO] [stderr] 78 | |         rule: Rule::lists,
[INFO] [stderr] ...  |
[INFO] [stderr] 85 | |         ]
[INFO] [stderr] 86 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/lists.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 | /     parses_to! {
[INFO] [stderr] 76 | |         parser: ListsParser,
[INFO] [stderr] 77 | |         input: "- a\n  - b\n  - c",
[INFO] [stderr] 78 | |         rule: Rule::lists,
[INFO] [stderr] ...  |
[INFO] [stderr] 85 | |         ]
[INFO] [stderr] 86 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/lists.rs:91:5
[INFO] [stderr]     |
[INFO] [stderr] 91  | /     parses_to! {
[INFO] [stderr] 92  | |         parser: ListsParser,
[INFO] [stderr] 93  | |         input: "- a\n  - b\n    - c",
[INFO] [stderr] 94  | |         rule: Rule::lists,
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |         ]
[INFO] [stderr] 104 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/lists.rs:91:5
[INFO] [stderr]     |
[INFO] [stderr] 91  | /     parses_to! {
[INFO] [stderr] 92  | |         parser: ListsParser,
[INFO] [stderr] 93  | |         input: "- a\n  - b\n    - c",
[INFO] [stderr] 94  | |         rule: Rule::lists,
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |         ]
[INFO] [stderr] 104 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/lists.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 | /     parses_to! {
[INFO] [stderr] 110 | |         parser: ListsParser,
[INFO] [stderr] 111 | |         input: "- a\n  - b\n- c",
[INFO] [stderr] 112 | |         rule: Rule::lists,
[INFO] [stderr] ...   |
[INFO] [stderr] 119 | |         ]
[INFO] [stderr] 120 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/lists.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 | /     parses_to! {
[INFO] [stderr] 110 | |         parser: ListsParser,
[INFO] [stderr] 111 | |         input: "- a\n  - b\n- c",
[INFO] [stderr] 112 | |         rule: Rule::lists,
[INFO] [stderr] ...   |
[INFO] [stderr] 119 | |         ]
[INFO] [stderr] 120 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar_inline.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | /     parses_to! {
[INFO] [stderr] 19 | |         parser: GrammarParser,
[INFO] [stderr] 20 | |         input: "abc",
[INFO] [stderr] 21 | |         rule: Rule::string,
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |         ]
[INFO] [stderr] 25 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar_inline.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | /     parses_to! {
[INFO] [stderr] 19 | |         parser: GrammarParser,
[INFO] [stderr] 20 | |         input: "abc",
[INFO] [stderr] 21 | |         rule: Rule::string,
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |         ]
[INFO] [stderr] 25 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | /     parses_to! {
[INFO] [stderr] 22 | |         parser: GrammarParser,
[INFO] [stderr] 23 | |         input: "abc",
[INFO] [stderr] 24 | |         rule: Rule::string,
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |         ]
[INFO] [stderr] 28 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | /     parses_to! {
[INFO] [stderr] 22 | |         parser: GrammarParser,
[INFO] [stderr] 23 | |         input: "abc",
[INFO] [stderr] 24 | |         rule: Rule::string,
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |         ]
[INFO] [stderr] 28 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | /     parses_to! {
[INFO] [stderr] 34 | |         parser: GrammarParser,
[INFO] [stderr] 35 | |         input: "aBC",
[INFO] [stderr] 36 | |         rule: Rule::insensitive,
[INFO] [stderr] ...  |
[INFO] [stderr] 39 | |         ]
[INFO] [stderr] 40 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 | /     parses_to! {
[INFO] [stderr] 34 | |         parser: GrammarParser,
[INFO] [stderr] 35 | |         input: "aBC",
[INFO] [stderr] 36 | |         rule: Rule::insensitive,
[INFO] [stderr] ...  |
[INFO] [stderr] 39 | |         ]
[INFO] [stderr] 40 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 | /     parses_to! {
[INFO] [stderr] 46 | |         parser: GrammarParser,
[INFO] [stderr] 47 | |         input: "6",
[INFO] [stderr] 48 | |         rule: Rule::range,
[INFO] [stderr] ...  |
[INFO] [stderr] 51 | |         ]
[INFO] [stderr] 52 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 | /     parses_to! {
[INFO] [stderr] 46 | |         parser: GrammarParser,
[INFO] [stderr] 47 | |         input: "6",
[INFO] [stderr] 48 | |         rule: Rule::range,
[INFO] [stderr] ...  |
[INFO] [stderr] 51 | |         ]
[INFO] [stderr] 52 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 | /     parses_to! {
[INFO] [stderr] 58 | |         parser: GrammarParser,
[INFO] [stderr] 59 | |         input: "abc",
[INFO] [stderr] 60 | |         rule: Rule::ident,
[INFO] [stderr] ...  |
[INFO] [stderr] 65 | |         ]
[INFO] [stderr] 66 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 | /     parses_to! {
[INFO] [stderr] 58 | |         parser: GrammarParser,
[INFO] [stderr] 59 | |         input: "abc",
[INFO] [stderr] 60 | |         rule: Rule::ident,
[INFO] [stderr] ...  |
[INFO] [stderr] 65 | |         ]
[INFO] [stderr] 66 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 | /     parses_to! {
[INFO] [stderr] 72 | |         parser: GrammarParser,
[INFO] [stderr] 73 | |         input: "abc",
[INFO] [stderr] 74 | |         rule: Rule::pos_pred,
[INFO] [stderr] ...  |
[INFO] [stderr] 77 | |         ]
[INFO] [stderr] 78 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar.rs:71:5
[INFO] [stderr]    |
[INFO] [stderr] 71 | /     parses_to! {
[INFO] [stderr] 72 | |         parser: GrammarParser,
[INFO] [stderr] 73 | |         input: "abc",
[INFO] [stderr] 74 | |         rule: Rule::pos_pred,
[INFO] [stderr] ...  |
[INFO] [stderr] 77 | |         ]
[INFO] [stderr] 78 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 | /     parses_to! {
[INFO] [stderr] 84 | |         parser: GrammarParser,
[INFO] [stderr] 85 | |         input: "",
[INFO] [stderr] 86 | |         rule: Rule::neg_pred,
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |         ]
[INFO] [stderr] 90 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/grammar.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 | /     parses_to! {
[INFO] [stderr] 84 | |         parser: GrammarParser,
[INFO] [stderr] 85 | |         input: "",
[INFO] [stderr] 86 | |         rule: Rule::neg_pred,
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |         ]
[INFO] [stderr] 90 | |     };
[INFO] [stderr]    | |______^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]    = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:95:5
[INFO] [stderr]     |
[INFO] [stderr] 95  | /     parses_to! {
[INFO] [stderr] 96  | |         parser: GrammarParser,
[INFO] [stderr] 97  | |         input: "abc",
[INFO] [stderr] 98  | |         rule: Rule::double_neg_pred,
[INFO] [stderr] ...   |
[INFO] [stderr] 101 | |         ]
[INFO] [stderr] 102 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:95:5
[INFO] [stderr]     |
[INFO] [stderr] 95  | /     parses_to! {
[INFO] [stderr] 96  | |         parser: GrammarParser,
[INFO] [stderr] 97  | |         input: "abc",
[INFO] [stderr] 98  | |         rule: Rule::double_neg_pred,
[INFO] [stderr] ...   |
[INFO] [stderr] 101 | |         ]
[INFO] [stderr] 102 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 | /     parses_to! {
[INFO] [stderr] 108 | |         parser: GrammarParser,
[INFO] [stderr] 109 | |         input: "abc   abc",
[INFO] [stderr] 110 | |         rule: Rule::sequence,
[INFO] [stderr] ...   |
[INFO] [stderr] 116 | |         ]
[INFO] [stderr] 117 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 | /     parses_to! {
[INFO] [stderr] 108 | |         parser: GrammarParser,
[INFO] [stderr] 109 | |         input: "abc   abc",
[INFO] [stderr] 110 | |         rule: Rule::sequence,
[INFO] [stderr] ...   |
[INFO] [stderr] 116 | |         ]
[INFO] [stderr] 117 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 | /     parses_to! {
[INFO] [stderr] 123 | |         parser: GrammarParser,
[INFO] [stderr] 124 | |         input: "abcabc",
[INFO] [stderr] 125 | |         rule: Rule::sequence_compound,
[INFO] [stderr] ...   |
[INFO] [stderr] 131 | |         ]
[INFO] [stderr] 132 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:122:5
[INFO] [stderr]     |
[INFO] [stderr] 122 | /     parses_to! {
[INFO] [stderr] 123 | |         parser: GrammarParser,
[INFO] [stderr] 124 | |         input: "abcabc",
[INFO] [stderr] 125 | |         rule: Rule::sequence_compound,
[INFO] [stderr] ...   |
[INFO] [stderr] 131 | |         ]
[INFO] [stderr] 132 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 | /     parses_to! {
[INFO] [stderr] 138 | |         parser: GrammarParser,
[INFO] [stderr] 139 | |         input: "abcabc",
[INFO] [stderr] 140 | |         rule: Rule::sequence_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 143 | |         ]
[INFO] [stderr] 144 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 | /     parses_to! {
[INFO] [stderr] 138 | |         parser: GrammarParser,
[INFO] [stderr] 139 | |         input: "abcabc",
[INFO] [stderr] 140 | |         rule: Rule::sequence_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 143 | |         ]
[INFO] [stderr] 144 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 | /     parses_to! {
[INFO] [stderr] 150 | |         parser: GrammarParser,
[INFO] [stderr] 151 | |         input: "abc   abc",
[INFO] [stderr] 152 | |         rule: Rule::sequence_non_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 160 | |         ]
[INFO] [stderr] 161 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 | /     parses_to! {
[INFO] [stderr] 150 | |         parser: GrammarParser,
[INFO] [stderr] 151 | |         input: "abc   abc",
[INFO] [stderr] 152 | |         rule: Rule::sequence_non_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 160 | |         ]
[INFO] [stderr] 161 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:167:5
[INFO] [stderr]     |
[INFO] [stderr] 167 | /     parses_to! {
[INFO] [stderr] 168 | |         parser: GrammarParser,
[INFO] [stderr] 169 | |         input: "abc abc",
[INFO] [stderr] 170 | |         rule: Rule::sequence_atomic,
[INFO] [stderr] 171 | |         tokens: []
[INFO] [stderr] 172 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:167:5
[INFO] [stderr]     |
[INFO] [stderr] 167 | /     parses_to! {
[INFO] [stderr] 168 | |         parser: GrammarParser,
[INFO] [stderr] 169 | |         input: "abc abc",
[INFO] [stderr] 170 | |         rule: Rule::sequence_atomic,
[INFO] [stderr] 171 | |         tokens: []
[INFO] [stderr] 172 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:177:5
[INFO] [stderr]     |
[INFO] [stderr] 177 | /     parses_to! {
[INFO] [stderr] 178 | |         parser: GrammarParser,
[INFO] [stderr] 179 | |         input: "abcabc",
[INFO] [stderr] 180 | |         rule: Rule::sequence_atomic_compound,
[INFO] [stderr] ...   |
[INFO] [stderr] 188 | |         ]
[INFO] [stderr] 189 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:177:5
[INFO] [stderr]     |
[INFO] [stderr] 177 | /     parses_to! {
[INFO] [stderr] 178 | |         parser: GrammarParser,
[INFO] [stderr] 179 | |         input: "abcabc",
[INFO] [stderr] 180 | |         rule: Rule::sequence_atomic_compound,
[INFO] [stderr] ...   |
[INFO] [stderr] 188 | |         ]
[INFO] [stderr] 189 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:194:5
[INFO] [stderr]     |
[INFO] [stderr] 194 | /     parses_to! {
[INFO] [stderr] 195 | |         parser: GrammarParser,
[INFO] [stderr] 196 | |         input: "abcabc",
[INFO] [stderr] 197 | |         rule: Rule::sequence_compound_nested,
[INFO] [stderr] ...   |
[INFO] [stderr] 205 | |         ]
[INFO] [stderr] 206 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:194:5
[INFO] [stderr]     |
[INFO] [stderr] 194 | /     parses_to! {
[INFO] [stderr] 195 | |         parser: GrammarParser,
[INFO] [stderr] 196 | |         input: "abcabc",
[INFO] [stderr] 197 | |         rule: Rule::sequence_compound_nested,
[INFO] [stderr] ...   |
[INFO] [stderr] 205 | |         ]
[INFO] [stderr] 206 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 | /     parses_to! {
[INFO] [stderr] 213 | |         parser: GrammarParser,
[INFO] [stderr] 214 | |         input: "abc abc",
[INFO] [stderr] 215 | |         rule: Rule::sequence_compound_nested,
[INFO] [stderr] 216 | |         tokens: []
[INFO] [stderr] 217 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:212:5
[INFO] [stderr]     |
[INFO] [stderr] 212 | /     parses_to! {
[INFO] [stderr] 213 | |         parser: GrammarParser,
[INFO] [stderr] 214 | |         input: "abc abc",
[INFO] [stderr] 215 | |         rule: Rule::sequence_compound_nested,
[INFO] [stderr] 216 | |         tokens: []
[INFO] [stderr] 217 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:222:5
[INFO] [stderr]     |
[INFO] [stderr] 222 | /     parses_to! {
[INFO] [stderr] 223 | |         parser: GrammarParser,
[INFO] [stderr] 224 | |         input: "abc",
[INFO] [stderr] 225 | |         rule: Rule::choice,
[INFO] [stderr] ...   |
[INFO] [stderr] 230 | |         ]
[INFO] [stderr] 231 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:222:5
[INFO] [stderr]     |
[INFO] [stderr] 222 | /     parses_to! {
[INFO] [stderr] 223 | |         parser: GrammarParser,
[INFO] [stderr] 224 | |         input: "abc",
[INFO] [stderr] 225 | |         rule: Rule::choice,
[INFO] [stderr] ...   |
[INFO] [stderr] 230 | |         ]
[INFO] [stderr] 231 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:236:5
[INFO] [stderr]     |
[INFO] [stderr] 236 | /     parses_to! {
[INFO] [stderr] 237 | |         parser: GrammarParser,
[INFO] [stderr] 238 | |         input: "0",
[INFO] [stderr] 239 | |         rule: Rule::choice,
[INFO] [stderr] ...   |
[INFO] [stderr] 244 | |         ]
[INFO] [stderr] 245 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:236:5
[INFO] [stderr]     |
[INFO] [stderr] 236 | /     parses_to! {
[INFO] [stderr] 237 | |         parser: GrammarParser,
[INFO] [stderr] 238 | |         input: "0",
[INFO] [stderr] 239 | |         rule: Rule::choice,
[INFO] [stderr] ...   |
[INFO] [stderr] 244 | |         ]
[INFO] [stderr] 245 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:250:5
[INFO] [stderr]     |
[INFO] [stderr] 250 | /     parses_to! {
[INFO] [stderr] 251 | |         parser: GrammarParser,
[INFO] [stderr] 252 | |         input: "abc",
[INFO] [stderr] 253 | |         rule: Rule::optional,
[INFO] [stderr] ...   |
[INFO] [stderr] 258 | |         ]
[INFO] [stderr] 259 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:250:5
[INFO] [stderr]     |
[INFO] [stderr] 250 | /     parses_to! {
[INFO] [stderr] 251 | |         parser: GrammarParser,
[INFO] [stderr] 252 | |         input: "abc",
[INFO] [stderr] 253 | |         rule: Rule::optional,
[INFO] [stderr] ...   |
[INFO] [stderr] 258 | |         ]
[INFO] [stderr] 259 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:264:5
[INFO] [stderr]     |
[INFO] [stderr] 264 | /     parses_to! {
[INFO] [stderr] 265 | |         parser: GrammarParser,
[INFO] [stderr] 266 | |         input: "",
[INFO] [stderr] 267 | |         rule: Rule::optional,
[INFO] [stderr] ...   |
[INFO] [stderr] 270 | |         ]
[INFO] [stderr] 271 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:264:5
[INFO] [stderr]     |
[INFO] [stderr] 264 | /     parses_to! {
[INFO] [stderr] 265 | |         parser: GrammarParser,
[INFO] [stderr] 266 | |         input: "",
[INFO] [stderr] 267 | |         rule: Rule::optional,
[INFO] [stderr] ...   |
[INFO] [stderr] 270 | |         ]
[INFO] [stderr] 271 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:276:5
[INFO] [stderr]     |
[INFO] [stderr] 276 | /     parses_to! {
[INFO] [stderr] 277 | |         parser: GrammarParser,
[INFO] [stderr] 278 | |         input: "",
[INFO] [stderr] 279 | |         rule: Rule::repeat,
[INFO] [stderr] ...   |
[INFO] [stderr] 282 | |         ]
[INFO] [stderr] 283 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:276:5
[INFO] [stderr]     |
[INFO] [stderr] 276 | /     parses_to! {
[INFO] [stderr] 277 | |         parser: GrammarParser,
[INFO] [stderr] 278 | |         input: "",
[INFO] [stderr] 279 | |         rule: Rule::repeat,
[INFO] [stderr] ...   |
[INFO] [stderr] 282 | |         ]
[INFO] [stderr] 283 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:288:5
[INFO] [stderr]     |
[INFO] [stderr] 288 | /     parses_to! {
[INFO] [stderr] 289 | |         parser: GrammarParser,
[INFO] [stderr] 290 | |         input: "abc   abc",
[INFO] [stderr] 291 | |         rule: Rule::repeat,
[INFO] [stderr] ...   |
[INFO] [stderr] 297 | |         ]
[INFO] [stderr] 298 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:288:5
[INFO] [stderr]     |
[INFO] [stderr] 288 | /     parses_to! {
[INFO] [stderr] 289 | |         parser: GrammarParser,
[INFO] [stderr] 290 | |         input: "abc   abc",
[INFO] [stderr] 291 | |         rule: Rule::repeat,
[INFO] [stderr] ...   |
[INFO] [stderr] 297 | |         ]
[INFO] [stderr] 298 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:303:5
[INFO] [stderr]     |
[INFO] [stderr] 303 | /     parses_to! {
[INFO] [stderr] 304 | |         parser: GrammarParser,
[INFO] [stderr] 305 | |         input: "",
[INFO] [stderr] 306 | |         rule: Rule::repeat_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 309 | |         ]
[INFO] [stderr] 310 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:303:5
[INFO] [stderr]     |
[INFO] [stderr] 303 | /     parses_to! {
[INFO] [stderr] 304 | |         parser: GrammarParser,
[INFO] [stderr] 305 | |         input: "",
[INFO] [stderr] 306 | |         rule: Rule::repeat_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 309 | |         ]
[INFO] [stderr] 310 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:315:5
[INFO] [stderr]     |
[INFO] [stderr] 315 | /     parses_to! {
[INFO] [stderr] 316 | |         parser: GrammarParser,
[INFO] [stderr] 317 | |         input: "abcabc",
[INFO] [stderr] 318 | |         rule: Rule::repeat_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 321 | |         ]
[INFO] [stderr] 322 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:315:5
[INFO] [stderr]     |
[INFO] [stderr] 315 | /     parses_to! {
[INFO] [stderr] 316 | |         parser: GrammarParser,
[INFO] [stderr] 317 | |         input: "abcabc",
[INFO] [stderr] 318 | |         rule: Rule::repeat_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 321 | |         ]
[INFO] [stderr] 322 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:328:5
[INFO] [stderr]     |
[INFO] [stderr] 328 | /     parses_to! {
[INFO] [stderr] 329 | |         parser: GrammarParser,
[INFO] [stderr] 330 | |         input: "abc abc",
[INFO] [stderr] 331 | |         rule: Rule::repeat_atomic,
[INFO] [stderr] 332 | |         tokens: []
[INFO] [stderr] 333 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:328:5
[INFO] [stderr]     |
[INFO] [stderr] 328 | /     parses_to! {
[INFO] [stderr] 329 | |         parser: GrammarParser,
[INFO] [stderr] 330 | |         input: "abc abc",
[INFO] [stderr] 331 | |         rule: Rule::repeat_atomic,
[INFO] [stderr] 332 | |         tokens: []
[INFO] [stderr] 333 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:339:5
[INFO] [stderr]     |
[INFO] [stderr] 339 | /     parses_to! {
[INFO] [stderr] 340 | |         parser: GrammarParser,
[INFO] [stderr] 341 | |         input: "",
[INFO] [stderr] 342 | |         rule: Rule::repeat_once,
[INFO] [stderr] 343 | |         tokens: []
[INFO] [stderr] 344 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:339:5
[INFO] [stderr]     |
[INFO] [stderr] 339 | /     parses_to! {
[INFO] [stderr] 340 | |         parser: GrammarParser,
[INFO] [stderr] 341 | |         input: "",
[INFO] [stderr] 342 | |         rule: Rule::repeat_once,
[INFO] [stderr] 343 | |         tokens: []
[INFO] [stderr] 344 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:349:5
[INFO] [stderr]     |
[INFO] [stderr] 349 | /     parses_to! {
[INFO] [stderr] 350 | |         parser: GrammarParser,
[INFO] [stderr] 351 | |         input: "abc   abc",
[INFO] [stderr] 352 | |         rule: Rule::repeat_once,
[INFO] [stderr] ...   |
[INFO] [stderr] 358 | |         ]
[INFO] [stderr] 359 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:349:5
[INFO] [stderr]     |
[INFO] [stderr] 349 | /     parses_to! {
[INFO] [stderr] 350 | |         parser: GrammarParser,
[INFO] [stderr] 351 | |         input: "abc   abc",
[INFO] [stderr] 352 | |         rule: Rule::repeat_once,
[INFO] [stderr] ...   |
[INFO] [stderr] 358 | |         ]
[INFO] [stderr] 359 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:365:5
[INFO] [stderr]     |
[INFO] [stderr] 365 | /     parses_to! {
[INFO] [stderr] 366 | |         parser: GrammarParser,
[INFO] [stderr] 367 | |         input: "",
[INFO] [stderr] 368 | |         rule: Rule::repeat_once_atomic,
[INFO] [stderr] 369 | |         tokens: []
[INFO] [stderr] 370 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:365:5
[INFO] [stderr]     |
[INFO] [stderr] 365 | /     parses_to! {
[INFO] [stderr] 366 | |         parser: GrammarParser,
[INFO] [stderr] 367 | |         input: "",
[INFO] [stderr] 368 | |         rule: Rule::repeat_once_atomic,
[INFO] [stderr] 369 | |         tokens: []
[INFO] [stderr] 370 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:375:5
[INFO] [stderr]     |
[INFO] [stderr] 375 | /     parses_to! {
[INFO] [stderr] 376 | |         parser: GrammarParser,
[INFO] [stderr] 377 | |         input: "abcabc",
[INFO] [stderr] 378 | |         rule: Rule::repeat_once_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 381 | |         ]
[INFO] [stderr] 382 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:375:5
[INFO] [stderr]     |
[INFO] [stderr] 375 | /     parses_to! {
[INFO] [stderr] 376 | |         parser: GrammarParser,
[INFO] [stderr] 377 | |         input: "abcabc",
[INFO] [stderr] 378 | |         rule: Rule::repeat_once_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 381 | |         ]
[INFO] [stderr] 382 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:388:5
[INFO] [stderr]     |
[INFO] [stderr] 388 | /     parses_to! {
[INFO] [stderr] 389 | |         parser: GrammarParser,
[INFO] [stderr] 390 | |         input: "abc abc",
[INFO] [stderr] 391 | |         rule: Rule::repeat_once_atomic,
[INFO] [stderr] 392 | |         tokens: []
[INFO] [stderr] 393 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:388:5
[INFO] [stderr]     |
[INFO] [stderr] 388 | /     parses_to! {
[INFO] [stderr] 389 | |         parser: GrammarParser,
[INFO] [stderr] 390 | |         input: "abc abc",
[INFO] [stderr] 391 | |         rule: Rule::repeat_once_atomic,
[INFO] [stderr] 392 | |         tokens: []
[INFO] [stderr] 393 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:398:5
[INFO] [stderr]     |
[INFO] [stderr] 398 | /     parses_to! {
[INFO] [stderr] 399 | |         parser: GrammarParser,
[INFO] [stderr] 400 | |         input: "abc abc",
[INFO] [stderr] 401 | |         rule: Rule::repeat_min_max,
[INFO] [stderr] ...   |
[INFO] [stderr] 407 | |         ]
[INFO] [stderr] 408 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:398:5
[INFO] [stderr]     |
[INFO] [stderr] 398 | /     parses_to! {
[INFO] [stderr] 399 | |         parser: GrammarParser,
[INFO] [stderr] 400 | |         input: "abc abc",
[INFO] [stderr] 401 | |         rule: Rule::repeat_min_max,
[INFO] [stderr] ...   |
[INFO] [stderr] 407 | |         ]
[INFO] [stderr] 408 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:413:5
[INFO] [stderr]     |
[INFO] [stderr] 413 | /     parses_to! {
[INFO] [stderr] 414 | |         parser: GrammarParser,
[INFO] [stderr] 415 | |         input: "abc abc abc",
[INFO] [stderr] 416 | |         rule: Rule::repeat_min_max,
[INFO] [stderr] ...   |
[INFO] [stderr] 423 | |         ]
[INFO] [stderr] 424 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:413:5
[INFO] [stderr]     |
[INFO] [stderr] 413 | /     parses_to! {
[INFO] [stderr] 414 | |         parser: GrammarParser,
[INFO] [stderr] 415 | |         input: "abc abc abc",
[INFO] [stderr] 416 | |         rule: Rule::repeat_min_max,
[INFO] [stderr] ...   |
[INFO] [stderr] 423 | |         ]
[INFO] [stderr] 424 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:429:5
[INFO] [stderr]     |
[INFO] [stderr] 429 | /     parses_to! {
[INFO] [stderr] 430 | |         parser: GrammarParser,
[INFO] [stderr] 431 | |         input: "abcabc",
[INFO] [stderr] 432 | |         rule: Rule::repeat_min_max_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 435 | |         ]
[INFO] [stderr] 436 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:429:5
[INFO] [stderr]     |
[INFO] [stderr] 429 | /     parses_to! {
[INFO] [stderr] 430 | |         parser: GrammarParser,
[INFO] [stderr] 431 | |         input: "abcabc",
[INFO] [stderr] 432 | |         rule: Rule::repeat_min_max_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 435 | |         ]
[INFO] [stderr] 436 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:441:5
[INFO] [stderr]     |
[INFO] [stderr] 441 | /     parses_to! {
[INFO] [stderr] 442 | |         parser: GrammarParser,
[INFO] [stderr] 443 | |         input: "abcabcabc",
[INFO] [stderr] 444 | |         rule: Rule::repeat_min_max_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 447 | |         ]
[INFO] [stderr] 448 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:441:5
[INFO] [stderr]     |
[INFO] [stderr] 441 | /     parses_to! {
[INFO] [stderr] 442 | |         parser: GrammarParser,
[INFO] [stderr] 443 | |         input: "abcabcabc",
[INFO] [stderr] 444 | |         rule: Rule::repeat_min_max_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 447 | |         ]
[INFO] [stderr] 448 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:454:5
[INFO] [stderr]     |
[INFO] [stderr] 454 | /     parses_to! {
[INFO] [stderr] 455 | |         parser: GrammarParser,
[INFO] [stderr] 456 | |         input: "abc abc",
[INFO] [stderr] 457 | |         rule: Rule::repeat_min_max_atomic,
[INFO] [stderr] 458 | |         tokens: []
[INFO] [stderr] 459 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:454:5
[INFO] [stderr]     |
[INFO] [stderr] 454 | /     parses_to! {
[INFO] [stderr] 455 | |         parser: GrammarParser,
[INFO] [stderr] 456 | |         input: "abc abc",
[INFO] [stderr] 457 | |         rule: Rule::repeat_min_max_atomic,
[INFO] [stderr] 458 | |         tokens: []
[INFO] [stderr] 459 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:464:5
[INFO] [stderr]     |
[INFO] [stderr] 464 | /     parses_to! {
[INFO] [stderr] 465 | |         parser: GrammarParser,
[INFO] [stderr] 466 | |         input: "abc abc",
[INFO] [stderr] 467 | |         rule: Rule::repeat_exact,
[INFO] [stderr] ...   |
[INFO] [stderr] 473 | |         ]
[INFO] [stderr] 474 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:464:5
[INFO] [stderr]     |
[INFO] [stderr] 464 | /     parses_to! {
[INFO] [stderr] 465 | |         parser: GrammarParser,
[INFO] [stderr] 466 | |         input: "abc abc",
[INFO] [stderr] 467 | |         rule: Rule::repeat_exact,
[INFO] [stderr] ...   |
[INFO] [stderr] 473 | |         ]
[INFO] [stderr] 474 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:480:5
[INFO] [stderr]     |
[INFO] [stderr] 480 | /     parses_to! {
[INFO] [stderr] 481 | |         parser: GrammarParser,
[INFO] [stderr] 482 | |         input: "abc",
[INFO] [stderr] 483 | |         rule: Rule::repeat_min,
[INFO] [stderr] 484 | |         tokens: []
[INFO] [stderr] 485 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:480:5
[INFO] [stderr]     |
[INFO] [stderr] 480 | /     parses_to! {
[INFO] [stderr] 481 | |         parser: GrammarParser,
[INFO] [stderr] 482 | |         input: "abc",
[INFO] [stderr] 483 | |         rule: Rule::repeat_min,
[INFO] [stderr] 484 | |         tokens: []
[INFO] [stderr] 485 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:490:5
[INFO] [stderr]     |
[INFO] [stderr] 490 | /     parses_to! {
[INFO] [stderr] 491 | |         parser: GrammarParser,
[INFO] [stderr] 492 | |         input: "abc abc",
[INFO] [stderr] 493 | |         rule: Rule::repeat_min,
[INFO] [stderr] ...   |
[INFO] [stderr] 499 | |         ]
[INFO] [stderr] 500 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:490:5
[INFO] [stderr]     |
[INFO] [stderr] 490 | /     parses_to! {
[INFO] [stderr] 491 | |         parser: GrammarParser,
[INFO] [stderr] 492 | |         input: "abc abc",
[INFO] [stderr] 493 | |         rule: Rule::repeat_min,
[INFO] [stderr] ...   |
[INFO] [stderr] 499 | |         ]
[INFO] [stderr] 500 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:505:5
[INFO] [stderr]     |
[INFO] [stderr] 505 | /     parses_to! {
[INFO] [stderr] 506 | |         parser: GrammarParser,
[INFO] [stderr] 507 | |         input: "abc abc  abc",
[INFO] [stderr] 508 | |         rule: Rule::repeat_min,
[INFO] [stderr] ...   |
[INFO] [stderr] 515 | |         ]
[INFO] [stderr] 516 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:505:5
[INFO] [stderr]     |
[INFO] [stderr] 505 | /     parses_to! {
[INFO] [stderr] 506 | |         parser: GrammarParser,
[INFO] [stderr] 507 | |         input: "abc abc  abc",
[INFO] [stderr] 508 | |         rule: Rule::repeat_min,
[INFO] [stderr] ...   |
[INFO] [stderr] 515 | |         ]
[INFO] [stderr] 516 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:522:5
[INFO] [stderr]     |
[INFO] [stderr] 522 | /     parses_to! {
[INFO] [stderr] 523 | |         parser: GrammarParser,
[INFO] [stderr] 524 | |         input: "abc",
[INFO] [stderr] 525 | |         rule: Rule::repeat_min_atomic,
[INFO] [stderr] 526 | |         tokens: []
[INFO] [stderr] 527 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:522:5
[INFO] [stderr]     |
[INFO] [stderr] 522 | /     parses_to! {
[INFO] [stderr] 523 | |         parser: GrammarParser,
[INFO] [stderr] 524 | |         input: "abc",
[INFO] [stderr] 525 | |         rule: Rule::repeat_min_atomic,
[INFO] [stderr] 526 | |         tokens: []
[INFO] [stderr] 527 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:532:5
[INFO] [stderr]     |
[INFO] [stderr] 532 | /     parses_to! {
[INFO] [stderr] 533 | |         parser: GrammarParser,
[INFO] [stderr] 534 | |         input: "abcabc",
[INFO] [stderr] 535 | |         rule: Rule::repeat_min_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 538 | |         ]
[INFO] [stderr] 539 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:532:5
[INFO] [stderr]     |
[INFO] [stderr] 532 | /     parses_to! {
[INFO] [stderr] 533 | |         parser: GrammarParser,
[INFO] [stderr] 534 | |         input: "abcabc",
[INFO] [stderr] 535 | |         rule: Rule::repeat_min_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 538 | |         ]
[INFO] [stderr] 539 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:544:5
[INFO] [stderr]     |
[INFO] [stderr] 544 | /     parses_to! {
[INFO] [stderr] 545 | |         parser: GrammarParser,
[INFO] [stderr] 546 | |         input: "abcabcabc",
[INFO] [stderr] 547 | |         rule: Rule::repeat_min_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 550 | |         ]
[INFO] [stderr] 551 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:544:5
[INFO] [stderr]     |
[INFO] [stderr] 544 | /     parses_to! {
[INFO] [stderr] 545 | |         parser: GrammarParser,
[INFO] [stderr] 546 | |         input: "abcabcabc",
[INFO] [stderr] 547 | |         rule: Rule::repeat_min_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 550 | |         ]
[INFO] [stderr] 551 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:557:5
[INFO] [stderr]     |
[INFO] [stderr] 557 | /     parses_to! {
[INFO] [stderr] 558 | |         parser: GrammarParser,
[INFO] [stderr] 559 | |         input: "abc abc",
[INFO] [stderr] 560 | |         rule: Rule::repeat_min_atomic,
[INFO] [stderr] 561 | |         tokens: []
[INFO] [stderr] 562 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:557:5
[INFO] [stderr]     |
[INFO] [stderr] 557 | /     parses_to! {
[INFO] [stderr] 558 | |         parser: GrammarParser,
[INFO] [stderr] 559 | |         input: "abc abc",
[INFO] [stderr] 560 | |         rule: Rule::repeat_min_atomic,
[INFO] [stderr] 561 | |         tokens: []
[INFO] [stderr] 562 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:567:5
[INFO] [stderr]     |
[INFO] [stderr] 567 | /     parses_to! {
[INFO] [stderr] 568 | |         parser: GrammarParser,
[INFO] [stderr] 569 | |         input: "abc",
[INFO] [stderr] 570 | |         rule: Rule::repeat_max,
[INFO] [stderr] ...   |
[INFO] [stderr] 575 | |         ]
[INFO] [stderr] 576 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:567:5
[INFO] [stderr]     |
[INFO] [stderr] 567 | /     parses_to! {
[INFO] [stderr] 568 | |         parser: GrammarParser,
[INFO] [stderr] 569 | |         input: "abc",
[INFO] [stderr] 570 | |         rule: Rule::repeat_max,
[INFO] [stderr] ...   |
[INFO] [stderr] 575 | |         ]
[INFO] [stderr] 576 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:581:5
[INFO] [stderr]     |
[INFO] [stderr] 581 | /     parses_to! {
[INFO] [stderr] 582 | |         parser: GrammarParser,
[INFO] [stderr] 583 | |         input: "abc abc",
[INFO] [stderr] 584 | |         rule: Rule::repeat_max,
[INFO] [stderr] ...   |
[INFO] [stderr] 590 | |         ]
[INFO] [stderr] 591 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:581:5
[INFO] [stderr]     |
[INFO] [stderr] 581 | /     parses_to! {
[INFO] [stderr] 582 | |         parser: GrammarParser,
[INFO] [stderr] 583 | |         input: "abc abc",
[INFO] [stderr] 584 | |         rule: Rule::repeat_max,
[INFO] [stderr] ...   |
[INFO] [stderr] 590 | |         ]
[INFO] [stderr] 591 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:597:5
[INFO] [stderr]     |
[INFO] [stderr] 597 | /     parses_to! {
[INFO] [stderr] 598 | |         parser: GrammarParser,
[INFO] [stderr] 599 | |         input: "abc abc",
[INFO] [stderr] 600 | |         rule: Rule::repeat_max,
[INFO] [stderr] 601 | |         tokens: []
[INFO] [stderr] 602 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:597:5
[INFO] [stderr]     |
[INFO] [stderr] 597 | /     parses_to! {
[INFO] [stderr] 598 | |         parser: GrammarParser,
[INFO] [stderr] 599 | |         input: "abc abc",
[INFO] [stderr] 600 | |         rule: Rule::repeat_max,
[INFO] [stderr] 601 | |         tokens: []
[INFO] [stderr] 602 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:607:5
[INFO] [stderr]     |
[INFO] [stderr] 607 | /     parses_to! {
[INFO] [stderr] 608 | |         parser: GrammarParser,
[INFO] [stderr] 609 | |         input: "abc",
[INFO] [stderr] 610 | |         rule: Rule::repeat_max_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 613 | |         ]
[INFO] [stderr] 614 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:607:5
[INFO] [stderr]     |
[INFO] [stderr] 607 | /     parses_to! {
[INFO] [stderr] 608 | |         parser: GrammarParser,
[INFO] [stderr] 609 | |         input: "abc",
[INFO] [stderr] 610 | |         rule: Rule::repeat_max_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 613 | |         ]
[INFO] [stderr] 614 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:619:5
[INFO] [stderr]     |
[INFO] [stderr] 619 | /     parses_to! {
[INFO] [stderr] 620 | |         parser: GrammarParser,
[INFO] [stderr] 621 | |         input: "abcabc",
[INFO] [stderr] 622 | |         rule: Rule::repeat_max_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 625 | |         ]
[INFO] [stderr] 626 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:619:5
[INFO] [stderr]     |
[INFO] [stderr] 619 | /     parses_to! {
[INFO] [stderr] 620 | |         parser: GrammarParser,
[INFO] [stderr] 621 | |         input: "abcabc",
[INFO] [stderr] 622 | |         rule: Rule::repeat_max_atomic,
[INFO] [stderr] ...   |
[INFO] [stderr] 625 | |         ]
[INFO] [stderr] 626 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:632:5
[INFO] [stderr]     |
[INFO] [stderr] 632 | /     parses_to! {
[INFO] [stderr] 633 | |         parser: GrammarParser,
[INFO] [stderr] 634 | |         input: "abcabcabc",
[INFO] [stderr] 635 | |         rule: Rule::repeat_max_atomic,
[INFO] [stderr] 636 | |         tokens: []
[INFO] [stderr] 637 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:632:5
[INFO] [stderr]     |
[INFO] [stderr] 632 | /     parses_to! {
[INFO] [stderr] 633 | |         parser: GrammarParser,
[INFO] [stderr] 634 | |         input: "abcabcabc",
[INFO] [stderr] 635 | |         rule: Rule::repeat_max_atomic,
[INFO] [stderr] 636 | |         tokens: []
[INFO] [stderr] 637 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:643:5
[INFO] [stderr]     |
[INFO] [stderr] 643 | /     parses_to! {
[INFO] [stderr] 644 | |         parser: GrammarParser,
[INFO] [stderr] 645 | |         input: "abc abc",
[INFO] [stderr] 646 | |         rule: Rule::repeat_max_atomic,
[INFO] [stderr] 647 | |         tokens: []
[INFO] [stderr] 648 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:643:5
[INFO] [stderr]     |
[INFO] [stderr] 643 | /     parses_to! {
[INFO] [stderr] 644 | |         parser: GrammarParser,
[INFO] [stderr] 645 | |         input: "abc abc",
[INFO] [stderr] 646 | |         rule: Rule::repeat_max_atomic,
[INFO] [stderr] 647 | |         tokens: []
[INFO] [stderr] 648 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:653:5
[INFO] [stderr]     |
[INFO] [stderr] 653 | /     parses_to! {
[INFO] [stderr] 654 | |         parser: GrammarParser,
[INFO] [stderr] 655 | |         input: "abc$$$ $$$abc",
[INFO] [stderr] 656 | |         rule: Rule::repeat_once,
[INFO] [stderr] ...   |
[INFO] [stderr] 662 | |         ]
[INFO] [stderr] 663 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:653:5
[INFO] [stderr]     |
[INFO] [stderr] 653 | /     parses_to! {
[INFO] [stderr] 654 | |         parser: GrammarParser,
[INFO] [stderr] 655 | |         input: "abc$$$ $$$abc",
[INFO] [stderr] 656 | |         rule: Rule::repeat_once,
[INFO] [stderr] ...   |
[INFO] [stderr] 662 | |         ]
[INFO] [stderr] 663 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:668:5
[INFO] [stderr]     |
[INFO] [stderr] 668 | /     parses_to! {
[INFO] [stderr] 669 | |         parser: GrammarParser,
[INFO] [stderr] 670 | |         input: "abc",
[INFO] [stderr] 671 | |         rule: Rule::soi_at_start,
[INFO] [stderr] ...   |
[INFO] [stderr] 676 | |         ]
[INFO] [stderr] 677 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:668:5
[INFO] [stderr]     |
[INFO] [stderr] 668 | /     parses_to! {
[INFO] [stderr] 669 | |         parser: GrammarParser,
[INFO] [stderr] 670 | |         input: "abc",
[INFO] [stderr] 671 | |         rule: Rule::soi_at_start,
[INFO] [stderr] ...   |
[INFO] [stderr] 676 | |         ]
[INFO] [stderr] 677 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:682:5
[INFO] [stderr]     |
[INFO] [stderr] 682 | /     parses_to! {
[INFO] [stderr] 683 | |         parser: GrammarParser,
[INFO] [stderr] 684 | |         input: "0111",
[INFO] [stderr] 685 | |         rule: Rule::peek_,
[INFO] [stderr] ...   |
[INFO] [stderr] 691 | |         ]
[INFO] [stderr] 692 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:682:5
[INFO] [stderr]     |
[INFO] [stderr] 682 | /     parses_to! {
[INFO] [stderr] 683 | |         parser: GrammarParser,
[INFO] [stderr] 684 | |         input: "0111",
[INFO] [stderr] 685 | |         rule: Rule::peek_,
[INFO] [stderr] ...   |
[INFO] [stderr] 691 | |         ]
[INFO] [stderr] 692 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:697:5
[INFO] [stderr]     |
[INFO] [stderr] 697 | /     parses_to! {
[INFO] [stderr] 698 | |         parser: GrammarParser,
[INFO] [stderr] 699 | |         input: "0110",
[INFO] [stderr] 700 | |         rule: Rule::peek_all,
[INFO] [stderr] ...   |
[INFO] [stderr] 706 | |         ]
[INFO] [stderr] 707 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:697:5
[INFO] [stderr]     |
[INFO] [stderr] 697 | /     parses_to! {
[INFO] [stderr] 698 | |         parser: GrammarParser,
[INFO] [stderr] 699 | |         input: "0110",
[INFO] [stderr] 700 | |         rule: Rule::peek_all,
[INFO] [stderr] ...   |
[INFO] [stderr] 706 | |         ]
[INFO] [stderr] 707 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:712:5
[INFO] [stderr]     |
[INFO] [stderr] 712 | /     parses_to! {
[INFO] [stderr] 713 | |         parser: GrammarParser,
[INFO] [stderr] 714 | |         input: "0123412",
[INFO] [stderr] 715 | |         rule: Rule::peek_slice_23,
[INFO] [stderr] ...   |
[INFO] [stderr] 724 | |         ]
[INFO] [stderr] 725 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:712:5
[INFO] [stderr]     |
[INFO] [stderr] 712 | /     parses_to! {
[INFO] [stderr] 713 | |         parser: GrammarParser,
[INFO] [stderr] 714 | |         input: "0123412",
[INFO] [stderr] 715 | |         rule: Rule::peek_slice_23,
[INFO] [stderr] ...   |
[INFO] [stderr] 724 | |         ]
[INFO] [stderr] 725 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:730:5
[INFO] [stderr]     |
[INFO] [stderr] 730 | /     parses_to! {
[INFO] [stderr] 731 | |         parser: GrammarParser,
[INFO] [stderr] 732 | |         input: "0110",
[INFO] [stderr] 733 | |         rule: Rule::pop_,
[INFO] [stderr] ...   |
[INFO] [stderr] 739 | |         ]
[INFO] [stderr] 740 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:730:5
[INFO] [stderr]     |
[INFO] [stderr] 730 | /     parses_to! {
[INFO] [stderr] 731 | |         parser: GrammarParser,
[INFO] [stderr] 732 | |         input: "0110",
[INFO] [stderr] 733 | |         rule: Rule::pop_,
[INFO] [stderr] ...   |
[INFO] [stderr] 739 | |         ]
[INFO] [stderr] 740 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:745:5
[INFO] [stderr]     |
[INFO] [stderr] 745 | /     parses_to! {
[INFO] [stderr] 746 | |         parser: GrammarParser,
[INFO] [stderr] 747 | |         input: "0110",
[INFO] [stderr] 748 | |         rule: Rule::pop_all,
[INFO] [stderr] ...   |
[INFO] [stderr] 754 | |         ]
[INFO] [stderr] 755 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:745:5
[INFO] [stderr]     |
[INFO] [stderr] 745 | /     parses_to! {
[INFO] [stderr] 746 | |         parser: GrammarParser,
[INFO] [stderr] 747 | |         input: "0110",
[INFO] [stderr] 748 | |         rule: Rule::pop_all,
[INFO] [stderr] ...   |
[INFO] [stderr] 754 | |         ]
[INFO] [stderr] 755 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:760:5
[INFO] [stderr]     |
[INFO] [stderr] 760 | /     parses_to! {
[INFO] [stderr] 761 | |         parser: GrammarParser,
[INFO] [stderr] 762 | |         input: "010",
[INFO] [stderr] 763 | |         rule: Rule::pop_fail,
[INFO] [stderr] ...   |
[INFO] [stderr] 769 | |         ]
[INFO] [stderr] 770 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:760:5
[INFO] [stderr]     |
[INFO] [stderr] 760 | /     parses_to! {
[INFO] [stderr] 761 | |         parser: GrammarParser,
[INFO] [stderr] 762 | |         input: "010",
[INFO] [stderr] 763 | |         rule: Rule::pop_fail,
[INFO] [stderr] ...   |
[INFO] [stderr] 769 | |         ]
[INFO] [stderr] 770 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:775:5
[INFO] [stderr]     |
[INFO] [stderr] 775 | /     parses_to! {
[INFO] [stderr] 776 | |         parser: GrammarParser,
[INFO] [stderr] 777 | |         input: "a,b,c,cba",
[INFO] [stderr] 778 | |         rule: Rule::repeat_mutate_stack,
[INFO] [stderr] ...   |
[INFO] [stderr] 781 | |         ]
[INFO] [stderr] 782 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:775:5
[INFO] [stderr]     |
[INFO] [stderr] 775 | /     parses_to! {
[INFO] [stderr] 776 | |         parser: GrammarParser,
[INFO] [stderr] 777 | |         input: "a,b,c,cba",
[INFO] [stderr] 778 | |         rule: Rule::repeat_mutate_stack,
[INFO] [stderr] ...   |
[INFO] [stderr] 781 | |         ]
[INFO] [stderr] 782 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:787:5
[INFO] [stderr]     |
[INFO] [stderr] 787 | /     parses_to! {
[INFO] [stderr] 788 | |         parser: GrammarParser,
[INFO] [stderr] 789 | |         input: "a",
[INFO] [stderr] 790 | |         rule: Rule::checkpoint_restore,
[INFO] [stderr] ...   |
[INFO] [stderr] 793 | |         ]
[INFO] [stderr] 794 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:787:5
[INFO] [stderr]     |
[INFO] [stderr] 787 | /     parses_to! {
[INFO] [stderr] 788 | |         parser: GrammarParser,
[INFO] [stderr] 789 | |         input: "a",
[INFO] [stderr] 790 | |         rule: Rule::checkpoint_restore,
[INFO] [stderr] ...   |
[INFO] [stderr] 793 | |         ]
[INFO] [stderr] 794 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:799:5
[INFO] [stderr]     |
[INFO] [stderr] 799 | /     parses_to! {
[INFO] [stderr] 800 | |         parser: GrammarParser,
[INFO] [stderr] 801 | |         input: "6",
[INFO] [stderr] 802 | |         rule: Rule::ascii_digits,
[INFO] [stderr] ...   |
[INFO] [stderr] 805 | |         ]
[INFO] [stderr] 806 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:799:5
[INFO] [stderr]     |
[INFO] [stderr] 799 | /     parses_to! {
[INFO] [stderr] 800 | |         parser: GrammarParser,
[INFO] [stderr] 801 | |         input: "6",
[INFO] [stderr] 802 | |         rule: Rule::ascii_digits,
[INFO] [stderr] ...   |
[INFO] [stderr] 805 | |         ]
[INFO] [stderr] 806 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:811:5
[INFO] [stderr]     |
[INFO] [stderr] 811 | /     parses_to! {
[INFO] [stderr] 812 | |         parser: GrammarParser,
[INFO] [stderr] 813 | |         input: "5",
[INFO] [stderr] 814 | |         rule: Rule::ascii_nonzero_digits,
[INFO] [stderr] ...   |
[INFO] [stderr] 817 | |         ]
[INFO] [stderr] 818 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:811:5
[INFO] [stderr]     |
[INFO] [stderr] 811 | /     parses_to! {
[INFO] [stderr] 812 | |         parser: GrammarParser,
[INFO] [stderr] 813 | |         input: "5",
[INFO] [stderr] 814 | |         rule: Rule::ascii_nonzero_digits,
[INFO] [stderr] ...   |
[INFO] [stderr] 817 | |         ]
[INFO] [stderr] 818 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:823:5
[INFO] [stderr]     |
[INFO] [stderr] 823 | /     parses_to! {
[INFO] [stderr] 824 | |         parser: GrammarParser,
[INFO] [stderr] 825 | |         input: "1",
[INFO] [stderr] 826 | |         rule: Rule::ascii_bin_digits,
[INFO] [stderr] ...   |
[INFO] [stderr] 829 | |         ]
[INFO] [stderr] 830 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:823:5
[INFO] [stderr]     |
[INFO] [stderr] 823 | /     parses_to! {
[INFO] [stderr] 824 | |         parser: GrammarParser,
[INFO] [stderr] 825 | |         input: "1",
[INFO] [stderr] 826 | |         rule: Rule::ascii_bin_digits,
[INFO] [stderr] ...   |
[INFO] [stderr] 829 | |         ]
[INFO] [stderr] 830 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:835:5
[INFO] [stderr]     |
[INFO] [stderr] 835 | /     parses_to! {
[INFO] [stderr] 836 | |         parser: GrammarParser,
[INFO] [stderr] 837 | |         input: "3",
[INFO] [stderr] 838 | |         rule: Rule::ascii_oct_digits,
[INFO] [stderr] ...   |
[INFO] [stderr] 841 | |         ]
[INFO] [stderr] 842 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:835:5
[INFO] [stderr]     |
[INFO] [stderr] 835 | /     parses_to! {
[INFO] [stderr] 836 | |         parser: GrammarParser,
[INFO] [stderr] 837 | |         input: "3",
[INFO] [stderr] 838 | |         rule: Rule::ascii_oct_digits,
[INFO] [stderr] ...   |
[INFO] [stderr] 841 | |         ]
[INFO] [stderr] 842 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:847:5
[INFO] [stderr]     |
[INFO] [stderr] 847 | /     parses_to! {
[INFO] [stderr] 848 | |         parser: GrammarParser,
[INFO] [stderr] 849 | |         input: "6bC",
[INFO] [stderr] 850 | |         rule: Rule::ascii_hex_digits,
[INFO] [stderr] ...   |
[INFO] [stderr] 853 | |         ]
[INFO] [stderr] 854 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:847:5
[INFO] [stderr]     |
[INFO] [stderr] 847 | /     parses_to! {
[INFO] [stderr] 848 | |         parser: GrammarParser,
[INFO] [stderr] 849 | |         input: "6bC",
[INFO] [stderr] 850 | |         rule: Rule::ascii_hex_digits,
[INFO] [stderr] ...   |
[INFO] [stderr] 853 | |         ]
[INFO] [stderr] 854 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:859:5
[INFO] [stderr]     |
[INFO] [stderr] 859 | /     parses_to! {
[INFO] [stderr] 860 | |         parser: GrammarParser,
[INFO] [stderr] 861 | |         input: "a",
[INFO] [stderr] 862 | |         rule: Rule::ascii_alpha_lowers,
[INFO] [stderr] ...   |
[INFO] [stderr] 865 | |         ]
[INFO] [stderr] 866 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:859:5
[INFO] [stderr]     |
[INFO] [stderr] 859 | /     parses_to! {
[INFO] [stderr] 860 | |         parser: GrammarParser,
[INFO] [stderr] 861 | |         input: "a",
[INFO] [stderr] 862 | |         rule: Rule::ascii_alpha_lowers,
[INFO] [stderr] ...   |
[INFO] [stderr] 865 | |         ]
[INFO] [stderr] 866 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:871:5
[INFO] [stderr]     |
[INFO] [stderr] 871 | /     parses_to! {
[INFO] [stderr] 872 | |         parser: GrammarParser,
[INFO] [stderr] 873 | |         input: "K",
[INFO] [stderr] 874 | |         rule: Rule::ascii_alpha_uppers,
[INFO] [stderr] ...   |
[INFO] [stderr] 877 | |         ]
[INFO] [stderr] 878 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:871:5
[INFO] [stderr]     |
[INFO] [stderr] 871 | /     parses_to! {
[INFO] [stderr] 872 | |         parser: GrammarParser,
[INFO] [stderr] 873 | |         input: "K",
[INFO] [stderr] 874 | |         rule: Rule::ascii_alpha_uppers,
[INFO] [stderr] ...   |
[INFO] [stderr] 877 | |         ]
[INFO] [stderr] 878 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:883:5
[INFO] [stderr]     |
[INFO] [stderr] 883 | /     parses_to! {
[INFO] [stderr] 884 | |         parser: GrammarParser,
[INFO] [stderr] 885 | |         input: "wF",
[INFO] [stderr] 886 | |         rule: Rule::ascii_alphas,
[INFO] [stderr] ...   |
[INFO] [stderr] 889 | |         ]
[INFO] [stderr] 890 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:883:5
[INFO] [stderr]     |
[INFO] [stderr] 883 | /     parses_to! {
[INFO] [stderr] 884 | |         parser: GrammarParser,
[INFO] [stderr] 885 | |         input: "wF",
[INFO] [stderr] 886 | |         rule: Rule::ascii_alphas,
[INFO] [stderr] ...   |
[INFO] [stderr] 889 | |         ]
[INFO] [stderr] 890 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:895:5
[INFO] [stderr]     |
[INFO] [stderr] 895 | /     parses_to! {
[INFO] [stderr] 896 | |         parser: GrammarParser,
[INFO] [stderr] 897 | |         input: "4jU",
[INFO] [stderr] 898 | |         rule: Rule::ascii_alphanumerics,
[INFO] [stderr] ...   |
[INFO] [stderr] 901 | |         ]
[INFO] [stderr] 902 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:895:5
[INFO] [stderr]     |
[INFO] [stderr] 895 | /     parses_to! {
[INFO] [stderr] 896 | |         parser: GrammarParser,
[INFO] [stderr] 897 | |         input: "4jU",
[INFO] [stderr] 898 | |         rule: Rule::ascii_alphanumerics,
[INFO] [stderr] ...   |
[INFO] [stderr] 901 | |         ]
[INFO] [stderr] 902 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:907:5
[INFO] [stderr]     |
[INFO] [stderr] 907 | /     parses_to! {
[INFO] [stderr] 908 | |         parser: GrammarParser,
[INFO] [stderr] 909 | |         input: "x02",
[INFO] [stderr] 910 | |         rule: Rule::asciis,
[INFO] [stderr] ...   |
[INFO] [stderr] 913 | |         ]
[INFO] [stderr] 914 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:907:5
[INFO] [stderr]     |
[INFO] [stderr] 907 | /     parses_to! {
[INFO] [stderr] 908 | |         parser: GrammarParser,
[INFO] [stderr] 909 | |         input: "x02",
[INFO] [stderr] 910 | |         rule: Rule::asciis,
[INFO] [stderr] ...   |
[INFO] [stderr] 913 | |         ]
[INFO] [stderr] 914 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:919:5
[INFO] [stderr]     |
[INFO] [stderr] 919 | /     parses_to! {
[INFO] [stderr] 920 | |         parser: GrammarParser,
[INFO] [stderr] 921 | |         input: "\n\r\n\r",
[INFO] [stderr] 922 | |         rule: Rule::newline,
[INFO] [stderr] ...   |
[INFO] [stderr] 925 | |         ]
[INFO] [stderr] 926 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:919:5
[INFO] [stderr]     |
[INFO] [stderr] 919 | /     parses_to! {
[INFO] [stderr] 920 | |         parser: GrammarParser,
[INFO] [stderr] 921 | |         input: "\n\r\n\r",
[INFO] [stderr] 922 | |         rule: Rule::newline,
[INFO] [stderr] ...   |
[INFO] [stderr] 925 | |         ]
[INFO] [stderr] 926 | |     };
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:931:5
[INFO] [stderr]     |
[INFO] [stderr] 931 | /     parses_to! {
[INFO] [stderr] 932 | |         parser: GrammarParser,
[INFO] [stderr] 933 | |         input: "نامهای",
[INFO] [stderr] 934 | |         rule: Rule::unicode,
[INFO] [stderr] ...   |
[INFO] [stderr] 937 | |         ]
[INFO] [stderr] 938 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:931:5
[INFO] [stderr]     |
[INFO] [stderr] 931 | /     parses_to! {
[INFO] [stderr] 932 | |         parser: GrammarParser,
[INFO] [stderr] 933 | |         input: "نامهای",
[INFO] [stderr] 934 | |         rule: Rule::unicode,
[INFO] [stderr] ...   |
[INFO] [stderr] 937 | |         ]
[INFO] [stderr] 938 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:943:5
[INFO] [stderr]     |
[INFO] [stderr] 943 | /     parses_to! {
[INFO] [stderr] 944 | |         parser: GrammarParser,
[INFO] [stderr] 945 | |         input: "shadows builtin",
[INFO] [stderr] 946 | |         rule: Rule::SYMBOL,
[INFO] [stderr] ...   |
[INFO] [stderr] 949 | |         ]
[INFO] [stderr] 950 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/grammar.rs:943:5
[INFO] [stderr]     |
[INFO] [stderr] 943 | /     parses_to! {
[INFO] [stderr] 944 | |         parser: GrammarParser,
[INFO] [stderr] 945 | |         input: "shadows builtin",
[INFO] [stderr] 946 | |         rule: Rule::SYMBOL,
[INFO] [stderr] ...   |
[INFO] [stderr] 949 | |         ]
[INFO] [stderr] 950 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr]     = note: this warning originates in the macro `parses_to` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 144 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pest_derive-46b3ea135cd4b6ac)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/grammar.rs (/opt/rustwide/target/debug/deps/grammar-894c310227002328)
[INFO] [stdout] 
[INFO] [stdout] running 72 tests
[INFO] [stdout] test ascii_alpha_lowers ... ok
[INFO] [stdout] test ascii_alphanumerics ... ok
[INFO] [stdout] test ascii_alphas ... ok
[INFO] [stdout] test ascii_alpha_uppers ... ok
[INFO] [stdout] test ascii_bin_digits ... ok
[INFO] [stdout] test ascii_digits ... ok
[INFO] [stdout] test ascii_hex_digits ... ok
[INFO] [stdout] test asciis ... ok
[INFO] [stdout] test checkpoint_restore ... ok
[INFO] [stdout] test choice_range ... ok
[INFO] [stdout] test ident ... ok
[INFO] [stdout] test choice_string ... ok
[INFO] [stdout] test insensitive ... ok
[INFO] [stdout] test double_neg_pred ... ok
[INFO] [stdout] test neg_pred ... ok
[INFO] [stdout] test optional_empty ... ok
[INFO] [stdout] test newline ... ok
[INFO] [stdout] test optional_string ... ok
[INFO] [stdout] test peek ... ok
[INFO] [stdout] test peek_all ... ok
[INFO] [stdout] test peek_slice_23 ... ok
[INFO] [stdout] test pop_fail ... ok
[INFO] [stdout] test pop ... ok
[INFO] [stdout] test range ... ok
[INFO] [stdout] test pos_pred ... ok
[INFO] [stdout] test repeat_atomic_empty ... ok
[INFO] [stdout] test repeat_atomic_strings ... ok
[INFO] [stdout] test repeat_comment ... ok
[INFO] [stdout] test repeat_empty ... ok
[INFO] [stdout] test repeat_max_atomic_once ... ok
[INFO] [stdout] test repeat_exact ... ok
[INFO] [stdout] test repeat_max_atomic_twice ... ok
[INFO] [stdout] test repeat_max_once ... ok
[INFO] [stdout] test repeat_max_twice ... ok
[INFO] [stdout] test repeat_min_atomic_twice ... ok
[INFO] [stdout] test repeat_min_max_thrice ... ok
[INFO] [stdout] test pop_all ... ok
[INFO] [stdout] test ascii_oct_digits ... ok
[INFO] [stdout] test repeat_min_max_atomic_twice ... ok
[INFO] [stdout] test ascii_nonzero_digits ... ok
[INFO] [stdout] test repeat_min_twice ... ok
[INFO] [stdout] test repeat_mutate_stack ... ok
[INFO] [stdout] test repeat_once_atomic_strings ... ok
[INFO] [stdout] test repeat_min_thrice ... ok
[INFO] [stdout] test repeat_once_strings ... ok
[INFO] [stdout] test repeat_strings ... ok
[INFO] [stdout] test sequence ... ok
[INFO] [stdout] test sequence_atomic ... ok
[INFO] [stdout] test sequence_atomic_compound ... ok
[INFO] [stdout] test repeat_min_atomic_thrice ... ok
[INFO] [stdout] test sequence_compound ... ok
[INFO] [stdout] test repeat_min_max_atomic_thrice ... ok
[INFO] [stdout] test repeat_min_max_twice ... ok
[INFO] [stdout] test sequence_compound_nested ... ok
[INFO] [stdout] test sequence_non_atomic ... ok
[INFO] [stdout] test shadowing ... ok
[INFO] [stdout] test soi_at_start ... ok
[INFO] [stdout] test string ... ok
[INFO] [stdout] test unicode ... ok
[INFO] [stdout] test repeat_atomic_space - should panic ... ok
[INFO] [stdout] test repeat_max_atomic_space - should panic ... ok
[INFO] [stdout] test repeat_max_atomic_thrice - should panic ... ok
[INFO] [stdout] test repeat_max_thrice - should panic ... ok
[INFO] [stdout] test repeat_min_atomic_once - should panic ... ok
[INFO] [stdout] test repeat_min_max_atomic_space - should panic ... ok
[INFO] [stdout] test repeat_min_once - should panic ... ok
[INFO] [stdout] test repeat_once_atomic_empty - should panic ... ok
[INFO] [stdout] test repeat_once_empty - should panic ... ok
[INFO] [stdout] test repeat_once_atomic_space - should panic ... ok
[INFO] [stdout] test sequence_atomic_space - should panic ... ok
[INFO] [stdout] test repeat_min_atomic_space - should panic ... ok
[INFO] [stdout] test sequence_compound_nested_space - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 72 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/grammar_inline.rs (/opt/rustwide/target/debug/deps/grammar_inline-46affb2b758ec7c4)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test inline_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/lists.rs (/opt/rustwide/target/debug/deps/lists-bb5d1065101240ac)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test children ... ok
[INFO] [stdout] test item ... ok
[INFO] [stdout] test items ... ok
[INFO] [stdout] test nested_items ... ok
[INFO] [stdout] test nested_then_not ... ok
[INFO] [stdout] test nested_two_levels ... ok
[INFO] [stdout] test nested_item ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/reporting.rs (/opt/rustwide/target/debug/deps/reporting-dfc8b6059d7e2757)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test choices ... ok
[INFO] [stdout] test choices_a_progress ... ok
[INFO] [stdout] test mixed ... ok
[INFO] [stdout] test mixed_progress ... ok
[INFO] [stdout] test negative ... ok
[INFO] [stdout] test negative_match ... ok
[INFO] [stdout] test choices_b_progress ... ok
[INFO] [stdout] test nested ... ok
[INFO] [stdout] test choices_no_progress ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pest_derive
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/lib.rs - (line 104) ... ignored
[INFO] [stdout] test src/lib.rs - (line 119) ... ignored
[INFO] [stdout] test src/lib.rs - (line 134) ... ignored
[INFO] [stdout] test src/lib.rs - (line 219) ... ignored
[INFO] [stdout] test src/lib.rs - (line 225) ... ignored
[INFO] [stdout] test src/lib.rs - (line 237) ... ignored
[INFO] [stdout] test src/lib.rs - (line 243) ... ignored
[INFO] [stdout] test src/lib.rs - (line 262) ... ignored
[INFO] [stdout] test src/lib.rs - (line 40) ... ignored
[INFO] [stdout] test src/lib.rs - (line 58) ... ignored
[INFO] [stdout] test src/lib.rs - (line 66) ... ignored
[INFO] [stdout] test src/lib.rs - (line 88) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 12 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a7b9834e62ca492381a8a7d0b26c245665ea874656fb806b15c58d61fa07e7f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7b9834e62ca492381a8a7d0b26c245665ea874656fb806b15c58d61fa07e7f4", kill_on_drop: false }`
[INFO] [stdout] a7b9834e62ca492381a8a7d0b26c245665ea874656fb806b15c58d61fa07e7f4
