[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] testing Swiftaff/rust-learning-parser-combinators against beta-2024-12-08 for beta-1.84.0-4-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwiftaff%2Frust-learning-parser-combinators" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Swiftaff/rust-learning-parser-combinators on toolchain beta-2024-12-08
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-12-08" "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-4-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-12-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb10d3021e717dbae7dbef3d9f44d47544ac519ef31d63d34099c343ca462024
[INFO] running `Command { std: "docker" "start" "-a" "fb10d3021e717dbae7dbef3d9f44d47544ac519ef31d63d34099c343ca462024", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb10d3021e717dbae7dbef3d9f44d47544ac519ef31d63d34099c343ca462024", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb10d3021e717dbae7dbef3d9f44d47544ac519ef31d63d34099c343ca462024", kill_on_drop: false }`
[INFO] [stdout] fb10d3021e717dbae7dbef3d9f44d47544ac519ef31d63d34099c343ca462024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fb122c12e2f47ca1674a9b01132cf15f2cade74489d08ea17bce59a1e7c9e29
[INFO] running `Command { std: "docker" "start" "-a" "2fb122c12e2f47ca1674a9b01132cf15f2cade74489d08ea17bce59a1e7c9e29", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling indextree v4.0.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling 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: fields `el_type` and `value` are never read
[INFO] [stdout]    --> src/lib.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub struct ParserEl {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 121 |     el_type: Option<ParserElementType>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 122 |     value: Option<ParserElValue>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParserEl` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "2fb122c12e2f47ca1674a9b01132cf15f2cade74489d08ea17bce59a1e7c9e29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fb122c12e2f47ca1674a9b01132cf15f2cade74489d08ea17bce59a1e7c9e29", kill_on_drop: false }`
[INFO] [stdout] 2fb122c12e2f47ca1674a9b01132cf15f2cade74489d08ea17bce59a1e7c9e29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb71a69752baf067fe3b497d95b556e7ffd43560a197f3342c7b3c9cb9ed163b
[INFO] running `Command { std: "docker" "start" "-a" "cb71a69752baf067fe3b497d95b556e7ffd43560a197f3342c7b3c9cb9ed163b", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: fields `el_type` and `value` are never read
[INFO] [stdout]    --> src/lib.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub struct ParserEl {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 121 |     el_type: Option<ParserElementType>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 122 |     value: Option<ParserElValue>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParserEl` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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: 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: fields `el_type` and `value` are never read
[INFO] [stdout]    --> src/lib.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub struct ParserEl {
[INFO] [stdout]     |            -------- fields in this struct
[INFO] [stdout] 121 |     el_type: Option<ParserElementType>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 122 |     value: Option<ParserElValue>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParserEl` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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: 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: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]      = note: `#[warn(non_fmt_panics)]` on by default
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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 usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "cb71a69752baf067fe3b497d95b556e7ffd43560a197f3342c7b3c9cb9ed163b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb71a69752baf067fe3b497d95b556e7ffd43560a197f3342c7b3c9cb9ed163b", kill_on_drop: false }`
[INFO] [stdout] cb71a69752baf067fe3b497d95b556e7ffd43560a197f3342c7b3c9cb9ed163b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4e4bce93c80527a23c3c4ed7b18a8162ae8f6a20011a43979b9a9db8417c872a
[INFO] running `Command { std: "docker" "start" "-a" "4e4bce93c80527a23c3c4ed7b18a8162ae8f6a20011a43979b9a9db8417c872a", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `test_language_arena`
[INFO] [stderr]    --> src/lib.rs:423:13
[INFO] [stderr]     |
[INFO] [stderr] 423 |         let test_language_arena = &mut self.language_arena;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_language_arena`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `el_type` and `value` are never read
[INFO] [stderr]    --> src/lib.rs:121:5
[INFO] [stderr]     |
[INFO] [stderr] 120 | pub struct ParserEl {
[INFO] [stderr]     |            -------- fields in this struct
[INFO] [stderr] 121 |     el_type: Option<ParserElementType>,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 122 |     value: Option<ParserElValue>,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `ParserEl` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `language_arena_append_functionTypeAndParam` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:412:12
[INFO] [stderr]     |
[INFO] [stderr] 412 |     pub fn language_arena_append_functionTypeAndParam(
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_arena_append_function_type_and_param`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `test_printing_functionTypeAndParam` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:422:12
[INFO] [stderr]     |
[INFO] [stderr] 422 |     pub fn test_printing_functionTypeAndParam(mut self: Parser, s: &str) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_printing_function_type_and_param`
[INFO] [stderr] 
[INFO] [stderr] warning: method `language_arena_get_last_child_functionTypeAndParam` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:467:12
[INFO] [stderr]     |
[INFO] [stderr] 467 |     pub fn language_arena_get_last_child_functionTypeAndParam(
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_arena_get_last_child_function_type_and_param`
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1454:32
[INFO] [stderr]      |
[INFO] [stderr] 1454 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]      = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1454 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1538:32
[INFO] [stderr]      |
[INFO] [stderr] 1538 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1538 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1567:32
[INFO] [stderr]      |
[INFO] [stderr] 1567 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1567 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1584:32
[INFO] [stderr]      |
[INFO] [stderr] 1584 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1584 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1601:32
[INFO] [stderr]      |
[INFO] [stderr] 1601 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1601 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1618:32
[INFO] [stderr]      |
[INFO] [stderr] 1618 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1618 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1635:32
[INFO] [stderr]      |
[INFO] [stderr] 1635 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1635 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1652:32
[INFO] [stderr]      |
[INFO] [stderr] 1652 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1652 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1669:32
[INFO] [stderr]      |
[INFO] [stderr] 1669 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1669 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1690:32
[INFO] [stderr]      |
[INFO] [stderr] 1690 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1690 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1700:32
[INFO] [stderr]      |
[INFO] [stderr] 1700 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1700 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1710:32
[INFO] [stderr]      |
[INFO] [stderr] 1710 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1710 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1728:32
[INFO] [stderr]      |
[INFO] [stderr] 1728 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1728 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1756:32
[INFO] [stderr]      |
[INFO] [stderr] 1756 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1756 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1774:32
[INFO] [stderr]      |
[INFO] [stderr] 1774 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1774 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1792:32
[INFO] [stderr]      |
[INFO] [stderr] 1792 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1792 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1810:32
[INFO] [stderr]      |
[INFO] [stderr] 1810 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1810 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1827:32
[INFO] [stderr]      |
[INFO] [stderr] 1827 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1827 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1844:32
[INFO] [stderr]      |
[INFO] [stderr] 1844 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1844 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1861:32
[INFO] [stderr]      |
[INFO] [stderr] 1861 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1861 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1878:32
[INFO] [stderr]      |
[INFO] [stderr] 1878 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1878 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1895:32
[INFO] [stderr]      |
[INFO] [stderr] 1895 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1895 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1912:32
[INFO] [stderr]      |
[INFO] [stderr] 1912 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1912 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1929:32
[INFO] [stderr]      |
[INFO] [stderr] 1929 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1929 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1958:32
[INFO] [stderr]      |
[INFO] [stderr] 1958 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1958 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:1975:32
[INFO] [stderr]      |
[INFO] [stderr] 1975 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 1975 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:2003:32
[INFO] [stderr]      |
[INFO] [stderr] 2003 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 2003 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:2020:32
[INFO] [stderr]      |
[INFO] [stderr] 2020 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 2020 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:2037:32
[INFO] [stderr]      |
[INFO] [stderr] 2037 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 2037 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:2066:32
[INFO] [stderr]      |
[INFO] [stderr] 2066 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 2066 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:2083:32
[INFO] [stderr]      |
[INFO] [stderr] 2083 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 2083 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]     --> src/lib.rs:2100:32
[INFO] [stderr]      |
[INFO] [stderr] 2100 |             _ => assert!(true, false),
[INFO] [stderr]      |                                ^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]      |
[INFO] [stderr] 2100 |             _ => assert!(true, "{}", false),
[INFO] [stderr]      |                                +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-learning-parser-combinators` (lib) generated 5 warnings
[INFO] [stderr] warning: `rust-learning-parser-combinators` (lib test) generated 37 warnings (5 duplicates) (run `cargo fix --lib -p rust-learning-parser-combinators --tests` to apply 32 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_learning_parser_combinators-e3660e8f8580dfa7)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test tests::test_combi_one_or_more_of ... ok
[INFO] [stdout] test tests::test_combi_zero_or_more_of ... ok
[INFO] [stdout] test tests::test_combi_optional ... ok
[INFO] [stdout] test tests::test_float ... ok
[INFO] [stdout] test tests::test_el_string ... ok
[INFO] [stdout] test tests::test_get_parser_function_by_name ... ok
[INFO] [stdout] test tests::test_int ... ok
[INFO] [stdout] test tests::test_lang_one_of_all_lang_parsers ... ok
[INFO] [stdout] test tests::test_lang_prim_char ... ok
[INFO] [stdout] test tests::test_lang_prim_eols ... ok
[INFO] [stdout] test tests::test_lang_prim_digit ... ok
[INFO] [stdout] test tests::test_lang_prim_eof ... ok
[INFO] [stdout] test tests::test_lang_prim_eols_or_eof ... ok
[INFO] [stdout] test tests::test_lang_prim_word ... ok
[INFO] [stdout] test tests::test_prim_char ... ok
[INFO] [stdout] test tests::test_multiple_variable_assign ... ok
[INFO] [stdout] test tests::test_prim_digit ... ok
[INFO] [stdout] test tests::test_lang_prim_next ... ok
[INFO] [stdout] test tests::test_run2 ... ok
[INFO] [stdout] test tests::test_prim_eols ... ok
[INFO] [stdout] test tests::test_lang_prim_quote ... ok
[INFO] [stdout] test tests::test_prim_eof ... ok
[INFO] [stdout] test tests::test_prim_next ... ok
[INFO] [stdout] test tests::test_prim_word ... ok
[INFO] [stdout] test tests::test_variable ... ok
[INFO] [stdout] test tests::test_multiple_parsers ... ok
[INFO] [stdout] test tests::test_prim_eof_or_eol ... ok
[INFO] [stdout] test tests::test_variable_sum ... ok
[INFO] [stdout] test tests::test_variable_assign ... ok
[INFO] [stdout] test tests::test_lang_combi_one_or_more ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_lang_combi_one_or_more stdout ----
[INFO] [stdout] 
[INFO] [stdout] vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
[INFO] [stdout] Parser Error at combi_first_success_of position:0
[INFO] [stdout] 1+a
[INFO] [stdout] Current Parser state looks like this:
[INFO] [stdout] Parser { input_original: "1+a", input_remaining: "1+a", language_arena: Arena { nodes: [Node { parent: None, previous_sibling: None, next_sibling: None, first_child: None, last_child: None, removed: false, data: (None, None) }] }, language_arena_node_parent_id: NodeId { index1: 1 }, output_arena: Arena { nodes: [Node { parent: None, previous_sibling: None, next_sibling: None, first_child: None, last_child: None, removed: false, data: ParserElement { el_type: None, int64: None, float64: None, string: None, var_name: None } }] }, output_arena_node_parent_id: NodeId { index1: 1 }, chomp: "", chomping: true, success: true, display_errors: true }
[INFO] [stdout] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ####last child added:  None
[INFO] [stdout] thread 'tests::test_lang_combi_one_or_more' panicked at src/lib.rs:1336:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: "aaaa"
[INFO] [stdout]  right: ""
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x59e3cd335e5a - std::backtrace_rs::backtrace::libunwind::trace::h8810477743020387
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x59e3cd335e5a - std::backtrace_rs::backtrace::trace_unsynchronized::h3aa55355dd6c54a6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x59e3cd335e5a - std::sys::backtrace::_print_fmt::h8588b0f62410823f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x59e3cd335e5a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h98c26ac25ffe89bb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x59e3cd35cd13 - core::fmt::rt::Argument::fmt::hf95377f4aebd453b
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x59e3cd35cd13 - core::fmt::write::h0dd5f6e2238c7982
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/mod.rs:1189:21
[INFO] [stdout]    6:     0x59e3cd332ff3 - std::io::Write::write_fmt::h03bb0ca26e6faf8c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/io/mod.rs:1884:15
[INFO] [stdout]    7:     0x59e3cd335ca2 - std::sys::backtrace::BacktraceLock::print::h5c19c1c038ee186d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x59e3cd3372dd - std::panicking::default_hook::{{closure}}::h77172f079a1fcb13
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x59e3cd3370e7 - std::panicking::default_hook::he5f8e3b203ccddba
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x59e3cd2f2ad7 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7a3c7b4a1ae77f2f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   11:     0x59e3cd2f2ad7 - test::test_main::{{closure}}::hf0d3b69ae9b353d1
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x59e3cd337988 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6332e82e7b189abd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   13:     0x59e3cd337988 - std::panicking::rust_panic_with_hook::h53863d4e9018df39
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x59e3cd33774a - std::panicking::begin_panic_handler::{{closure}}::h67280e6fa0757873
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x59e3cd336339 - std::sys::backtrace::__rust_end_short_backtrace::h1dac3f54d6fbbeb2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x59e3cd3373dc - rust_begin_unwind
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x59e3cd28cab0 - core::panicking::panic_fmt::h6792bd1b2bf01041
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:76:14
[INFO] [stdout]   18:     0x59e3cd28ce14 - core::panicking::assert_failed_inner::hf2c17e6d30928787
[INFO] [stdout]   19:     0x59e3cd2a56c4 - core::panicking::assert_failed::h58f793fc5424974b
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:373:5
[INFO] [stdout]   20:     0x59e3cd28d6da - rust_learning_parser_combinators::tests::test_lang_combi_one_or_more::hfd8782e6aff19b78
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:1336:9
[INFO] [stdout]   21:     0x59e3cd28d567 - rust_learning_parser_combinators::tests::test_lang_combi_one_or_more::{{closure}}::h95fdccc6f4a175f4
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:1330:37
[INFO] [stdout]   22:     0x59e3cd2a27e6 - core::ops::function::FnOnce::call_once::h22adee0fafae3127
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x59e3cd2f75fb - core::ops::function::FnOnce::call_once::h871bf86719ec9aa4
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x59e3cd2f75fb - test::__rust_begin_short_backtrace::h2167df1e2b7d76fd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:632:18
[INFO] [stdout]   25:     0x59e3cd2f6fe8 - test::run_test_in_process::{{closure}}::h15d92f75a3adfb79
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:60
[INFO] [stdout]   26:     0x59e3cd2f6fe8 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb6c8955835a8dbbb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x59e3cd2f6fe8 - std::panicking::try::do_call::hc79d0fc888a0bd30
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   28:     0x59e3cd2f6fe8 - std::panicking::try::hb8a7878e3a8589d6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   29:     0x59e3cd2f6fe8 - std::panic::catch_unwind::hb8e4600ff0ff5cfa
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x59e3cd2f6fe8 - test::run_test_in_process::hc2900b0b18688dd6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:27
[INFO] [stdout]   31:     0x59e3cd2f6fe8 - test::run_test::{{closure}}::hac2a9cb07be3d48d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:576:43
[INFO] [stdout]   32:     0x59e3cd2baa8a - test::run_test::{{closure}}::h4a5b729e66a38cd8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:606:41
[INFO] [stdout]   33:     0x59e3cd2baa8a - std::sys::backtrace::__rust_begin_short_backtrace::h0496fb742492f573
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   34:     0x59e3cd2be404 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbb6d257c550a54bd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:561:17
[INFO] [stdout]   35:     0x59e3cd2be404 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h46696fe4a6832328
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x59e3cd2be404 - std::panicking::try::do_call::h2625a51b667bfb64
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   37:     0x59e3cd2be404 - std::panicking::try::hb956a59a1973aa4c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   38:     0x59e3cd2be404 - std::panic::catch_unwind::h64f3b9d1067ef6a0
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x59e3cd2be404 - std::thread::Builder::spawn_unchecked_::{{closure}}::h42b2841295b6c0b2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   40:     0x59e3cd2be404 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6127de71b8124639
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x59e3cd33b8cb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h42f0ba71002a1b2c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   42:     0x59e3cd33b8cb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::had9e47d7a3dcecb8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   43:     0x59e3cd33b8cb - std::sys::pal::unix::thread::Thread::new::thread_start::h48cf765408f6f5f2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x713fb2358ac3 - <unknown>
[INFO] [stdout]   45:     0x713fb23e9a04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::test_lang_combi_one_or_more
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 29 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "4e4bce93c80527a23c3c4ed7b18a8162ae8f6a20011a43979b9a9db8417c872a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e4bce93c80527a23c3c4ed7b18a8162ae8f6a20011a43979b9a9db8417c872a", kill_on_drop: false }`
[INFO] [stdout] 4e4bce93c80527a23c3c4ed7b18a8162ae8f6a20011a43979b9a9db8417c872a
