[INFO] updating cached repository https://github.com/luizlls/gris-lang
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/luizlls/gris-lang
[INFO] [stderr]  * [new branch]      parser-refactoring -> parser-refactoring
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9519bf7cc34259601d32e4f3112094ec555d60fd
[INFO] checking luizlls/gris-lang against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluizlls%2Fgris-lang" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/luizlls/gris-lang on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/luizlls/gris-lang
[INFO] finished tweaking git repo https://github.com/luizlls/gris-lang
[INFO] tweaked toml for git repo https://github.com/luizlls/gris-lang written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/luizlls/gris-lang already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 00322a674aa862d0006e890e4a315764a5e50a04980577a1c19f5733b08ffb0d
[INFO] running `"docker" "start" "-a" "00322a674aa862d0006e890e4a315764a5e50a04980577a1c19f5733b08ffb0d"`
[INFO] [stderr]     Checking gris-lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/frontend/parser.rs:610:13
[INFO] [stderr]     |
[INFO] [stderr] 610 |         let mut patt = match self.curr_ttype() {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Expr`
[INFO] [stderr]  --> src/frontend/ast.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Expr(Expr),
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `span`
[INFO] [stderr]   --> src/frontend/ast.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn span(&self) -> Span {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `span`
[INFO] [stderr]    --> src/frontend/ast.rs:192:5
[INFO] [stderr]     |
[INFO] [stderr] 192 |     pub fn span(&self) -> Span {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `span`
[INFO] [stderr]    --> src/frontend/ast.rs:238:5
[INFO] [stderr]     |
[INFO] [stderr] 238 |     pub fn span(&self) -> Span {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_single_expr`
[INFO] [stderr]   --> src/frontend/parser.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     pub fn parse_single_expr(mut self) -> Result<Expr, Diagnostics<'a, SyntaxError>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `prev_ttype`
[INFO] [stderr]    --> src/frontend/parser.rs:843:5
[INFO] [stderr]     |
[INFO] [stderr] 843 |     fn prev_ttype(&self) -> TokenType {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lookahead_ttype`
[INFO] [stderr]    --> src/frontend/parser.rs:875:5
[INFO] [stderr]     |
[INFO] [stderr] 875 |     fn lookahead_ttype(&mut self, nth: usize) -> PResult<TokenType> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lookahead`
[INFO] [stderr]    --> src/frontend/lexer.rs:149:5
[INFO] [stderr]     |
[INFO] [stderr] 149 |     pub fn lookahead(&mut self, nth: usize) -> Option<&LexerResult> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/frontend/parser.rs:610:13
[INFO] [stderr]     |
[INFO] [stderr] 610 |         let mut patt = match self.curr_ttype() {
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Expr`
[INFO] [stderr]  --> src/frontend/ast.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Expr(Expr),
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `span`
[INFO] [stderr]   --> src/frontend/ast.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn span(&self) -> Span {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `span`
[INFO] [stderr]    --> src/frontend/ast.rs:192:5
[INFO] [stderr]     |
[INFO] [stderr] 192 |     pub fn span(&self) -> Span {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `span`
[INFO] [stderr]    --> src/frontend/ast.rs:238:5
[INFO] [stderr]     |
[INFO] [stderr] 238 |     pub fn span(&self) -> Span {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `prev_ttype`
[INFO] [stderr]    --> src/frontend/parser.rs:843:5
[INFO] [stderr]     |
[INFO] [stderr] 843 |     fn prev_ttype(&self) -> TokenType {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `lookahead_ttype`
[INFO] [stderr]    --> src/frontend/parser.rs:875:5
[INFO] [stderr]     |
[INFO] [stderr] 875 |     fn lookahead_ttype(&mut self, nth: usize) -> PResult<TokenType> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/frontend/parser.rs:988:9
[INFO] [stderr]     |
[INFO] [stderr] 988 |         parse_single_expr("!true");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/frontend/parser.rs:993:9
[INFO] [stderr]     |
[INFO] [stderr] 993 |         parse_single_expr("1 + 2 * 3 / 4");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/frontend/parser.rs:998:9
[INFO] [stderr]     |
[INFO] [stderr] 998 |         parse_single_expr(r#"if x > y then print("x > y") else print("y >= x")"#);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1003:9
[INFO] [stderr]      |
[INFO] [stderr] 1003 | /         parse_single_expr(r#"
[INFO] [stderr] 1004 | |             if x > y {
[INFO] [stderr] 1005 | |               print("x > y")
[INFO] [stderr] 1006 | |             }
[INFO] [stderr] ...    |
[INFO] [stderr] 1012 | |             }
[INFO] [stderr] 1013 | |         "#);
[INFO] [stderr]      | |____________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1018:9
[INFO] [stderr]      |
[INFO] [stderr] 1018 | /         parse_single_expr(r#"
[INFO] [stderr] 1019 | |             match n {
[INFO] [stderr] 1020 | |               1 -> print("One"),
[INFO] [stderr] 1021 | |               2 -> print("Two"),
[INFO] [stderr] 1022 | |               _ -> print("Other number")
[INFO] [stderr] 1023 | |             }
[INFO] [stderr] 1024 | |         "#);
[INFO] [stderr]      | |____________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1029:9
[INFO] [stderr]      |
[INFO] [stderr] 1029 | /         parse_single_expr(r#"
[INFO] [stderr] 1030 | |             match x {
[INFO] [stderr] 1031 | |               1 |
[INFO] [stderr] 1032 | |               2 |
[INFO] [stderr] ...    |
[INFO] [stderr] 1037 | |             }
[INFO] [stderr] 1038 | |         "#);
[INFO] [stderr]      | |____________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1043:9
[INFO] [stderr]      |
[INFO] [stderr] 1043 |         parse_single_expr("print(1)");
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1048:9
[INFO] [stderr]      |
[INFO] [stderr] 1048 |         parse_single_expr("Pretty.print(list)");
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1053:9
[INFO] [stderr]      |
[INFO] [stderr] 1053 |         parse_single_expr(r#"split("a/b/c", "/")"#);
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1058:9
[INFO] [stderr]      |
[INFO] [stderr] 1058 |         parse_single_expr("curried(1)(2)(3)(4)");
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1063:9
[INFO] [stderr]      |
[INFO] [stderr] 1063 |         parse_single_expr("map(n -> n * n, 1..100)");
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1068:9
[INFO] [stderr]      |
[INFO] [stderr] 1068 |         parse("f(x: Int) = x * x");
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1073:9
[INFO] [stderr]      |
[INFO] [stderr] 1073 |         parse("f(x, y: Int) = x * y");
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1078:9
[INFO] [stderr]      |
[INFO] [stderr] 1078 | /         parse(r#"
[INFO] [stderr] 1079 | |             fizzbuzz(n: Int) -> String {
[INFO] [stderr] 1080 | |               match (n % 3, n % 5) {
[INFO] [stderr] 1081 | |                 (0, 0) -> "FizzBuzz",
[INFO] [stderr] ...    |
[INFO] [stderr] 1086 | |             }
[INFO] [stderr] 1087 | |         "#);
[INFO] [stderr]      | |____________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1092:9
[INFO] [stderr]      |
[INFO] [stderr] 1092 | /         parse(r#"
[INFO] [stderr] 1093 | |             add(a, b: Int) -> Int {
[INFO] [stderr] 1094 | |               x = a + b
[INFO] [stderr] 1095 | |               y = a - b
[INFO] [stderr] 1096 | |               x * y
[INFO] [stderr] 1097 | |             }
[INFO] [stderr] 1098 | |         "#);
[INFO] [stderr]      | |____________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1103:9
[INFO] [stderr]      |
[INFO] [stderr] 1103 |         parse("`|>` (x: 'A, f: ('A) -> 'B) = f(x)");
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1108:9
[INFO] [stderr]      |
[INFO] [stderr] 1108 | /         parse(r#"
[INFO] [stderr] 1109 | |             data List('A) {
[INFO] [stderr] 1110 | |                 Nil,
[INFO] [stderr] 1111 | |                 Cons(x: 'A, xs: List('A))
[INFO] [stderr] 1112 | |             }"#);
[INFO] [stderr]      | |_________________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/frontend/parser.rs:1117:9
[INFO] [stderr]      |
[INFO] [stderr] 1117 | /         parse(r#"
[INFO] [stderr] 1118 | |             import List
[INFO] [stderr] 1119 | |             import Math
[INFO] [stderr] 1120 | |         "#);
[INFO] [stderr]      | |____________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.71s
[INFO] running `"docker" "inspect" "00322a674aa862d0006e890e4a315764a5e50a04980577a1c19f5733b08ffb0d"`
[INFO] running `"docker" "rm" "-f" "00322a674aa862d0006e890e4a315764a5e50a04980577a1c19f5733b08ffb0d"`
[INFO] [stdout] 00322a674aa862d0006e890e4a315764a5e50a04980577a1c19f5733b08ffb0d