[INFO] cloning repository https://github.com/Swiftaff/rust-learning-parser-combinators
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Swiftaff/rust-learning-parser-combinators" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwiftaff%2Frust-learning-parser-combinators", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwiftaff%2Frust-learning-parser-combinators'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d892d8ab14330c61befaf439454c46c307b20345
[INFO] checking Swiftaff/rust-learning-parser-combinators against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwiftaff%2Frust-learning-parser-combinators" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Swiftaff/rust-learning-parser-combinators on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Swiftaff/rust-learning-parser-combinators
[INFO] finished tweaking git repo https://github.com/Swiftaff/rust-learning-parser-combinators
[INFO] tweaked toml for git repo https://github.com/Swiftaff/rust-learning-parser-combinators written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Swiftaff/rust-learning-parser-combinators already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3629449f6e10052a106fde376ecd9592018571126de15e2213880e21abdf349
[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" "c3629449f6e10052a106fde376ecd9592018571126de15e2213880e21abdf349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3629449f6e10052a106fde376ecd9592018571126de15e2213880e21abdf349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3629449f6e10052a106fde376ecd9592018571126de15e2213880e21abdf349", kill_on_drop: false }`
[INFO] [stdout] c3629449f6e10052a106fde376ecd9592018571126de15e2213880e21abdf349
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 194b27d07708039f27ef8d973eaf49dc8f633dbd467944c8b54465975969aea5
[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" "194b27d07708039f27ef8d973eaf49dc8f633dbd467944c8b54465975969aea5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking indextree v4.0.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking rust-learning-parser-combinators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `test_language_arena`
[INFO] [stdout]    --> src/lib.rs:423:13
[INFO] [stdout]     |
[INFO] [stdout] 423 |         let test_language_arena = &mut self.language_arena;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_language_arena`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `language_arena_append_functionTypeAndParam` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:412:12
[INFO] [stdout]     |
[INFO] [stdout] 412 |     pub fn language_arena_append_functionTypeAndParam(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_arena_append_function_type_and_param`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `test_printing_functionTypeAndParam` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:422:12
[INFO] [stdout]     |
[INFO] [stdout] 422 |     pub fn test_printing_functionTypeAndParam(mut self: Parser, s: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_printing_function_type_and_param`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `language_arena_get_last_child_functionTypeAndParam` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:467:12
[INFO] [stdout]     |
[INFO] [stdout] 467 |     pub fn language_arena_get_last_child_functionTypeAndParam(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_arena_get_last_child_function_type_and_param`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test_language_arena`
[INFO] [stdout]    --> src/lib.rs:423:13
[INFO] [stdout]     |
[INFO] [stdout] 423 |         let test_language_arena = &mut self.language_arena;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_language_arena`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1454:32
[INFO] [stdout]      |
[INFO] [stdout] 1454 |             _ => assert!(true, false),
[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] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1454 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1538:32
[INFO] [stdout]      |
[INFO] [stdout] 1538 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1538 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1567:32
[INFO] [stdout]      |
[INFO] [stdout] 1567 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1567 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1584:32
[INFO] [stdout]      |
[INFO] [stdout] 1584 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1584 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1601:32
[INFO] [stdout]      |
[INFO] [stdout] 1601 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1601 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1618:32
[INFO] [stdout]      |
[INFO] [stdout] 1618 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1618 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1635:32
[INFO] [stdout]      |
[INFO] [stdout] 1635 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1635 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1652:32
[INFO] [stdout]      |
[INFO] [stdout] 1652 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1652 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1669:32
[INFO] [stdout]      |
[INFO] [stdout] 1669 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1669 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1690:32
[INFO] [stdout]      |
[INFO] [stdout] 1690 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1690 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1700:32
[INFO] [stdout]      |
[INFO] [stdout] 1700 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1700 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1710:32
[INFO] [stdout]      |
[INFO] [stdout] 1710 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1710 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1728:32
[INFO] [stdout]      |
[INFO] [stdout] 1728 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1728 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1756:32
[INFO] [stdout]      |
[INFO] [stdout] 1756 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1756 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1774:32
[INFO] [stdout]      |
[INFO] [stdout] 1774 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1774 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1792:32
[INFO] [stdout]      |
[INFO] [stdout] 1792 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1792 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1810:32
[INFO] [stdout]      |
[INFO] [stdout] 1810 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1810 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1827:32
[INFO] [stdout]      |
[INFO] [stdout] 1827 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1827 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1844:32
[INFO] [stdout]      |
[INFO] [stdout] 1844 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1844 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1861:32
[INFO] [stdout]      |
[INFO] [stdout] 1861 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1861 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1878:32
[INFO] [stdout]      |
[INFO] [stdout] 1878 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1878 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1895:32
[INFO] [stdout]      |
[INFO] [stdout] 1895 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1895 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1912:32
[INFO] [stdout]      |
[INFO] [stdout] 1912 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1912 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1929:32
[INFO] [stdout]      |
[INFO] [stdout] 1929 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1929 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1958:32
[INFO] [stdout]      |
[INFO] [stdout] 1958 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1958 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:1975:32
[INFO] [stdout]      |
[INFO] [stdout] 1975 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1975 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:2003:32
[INFO] [stdout]      |
[INFO] [stdout] 2003 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 2003 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:2020:32
[INFO] [stdout]      |
[INFO] [stdout] 2020 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 2020 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:2037:32
[INFO] [stdout]      |
[INFO] [stdout] 2037 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 2037 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:2066:32
[INFO] [stdout]      |
[INFO] [stdout] 2066 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 2066 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:2083:32
[INFO] [stdout]      |
[INFO] [stdout] 2083 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 2083 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/lib.rs:2100:32
[INFO] [stdout]      |
[INFO] [stdout] 2100 |             _ => assert!(true, false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 2100 |             _ => assert!(true, "{}", false),
[INFO] [stdout]      |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `language_arena_append_functionTypeAndParam` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:412:12
[INFO] [stdout]     |
[INFO] [stdout] 412 |     pub fn language_arena_append_functionTypeAndParam(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_arena_append_function_type_and_param`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `test_printing_functionTypeAndParam` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:422:12
[INFO] [stdout]     |
[INFO] [stdout] 422 |     pub fn test_printing_functionTypeAndParam(mut self: Parser, s: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_printing_function_type_and_param`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `language_arena_get_last_child_functionTypeAndParam` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:467:12
[INFO] [stdout]     |
[INFO] [stdout] 467 |     pub fn language_arena_get_last_child_functionTypeAndParam(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_arena_get_last_child_function_type_and_param`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.88s
[INFO] [stdout] warning: 36 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "194b27d07708039f27ef8d973eaf49dc8f633dbd467944c8b54465975969aea5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "194b27d07708039f27ef8d973eaf49dc8f633dbd467944c8b54465975969aea5", kill_on_drop: false }`
[INFO] [stdout] 194b27d07708039f27ef8d973eaf49dc8f633dbd467944c8b54465975969aea5