[INFO] cloning repository https://github.com/Jekton/lessjs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jekton/lessjs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJekton%2Flessjs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJekton%2Flessjs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06dab995fe73f404b188fc136d7999a7749639ee
[INFO] checking Jekton/lessjs against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJekton%2Flessjs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Jekton/lessjs
[INFO] finished tweaking git repo https://github.com/Jekton/lessjs
[INFO] tweaked toml for git repo https://github.com/Jekton/lessjs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Jekton/lessjs on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Jekton/lessjs 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03713656e9c3ca05e0667e66ea236c0432e42e98f2752d5bc69b3cc445f6a1db
[INFO] running `Command { std: "docker" "start" "-a" "03713656e9c3ca05e0667e66ea236c0432e42e98f2752d5bc69b3cc445f6a1db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03713656e9c3ca05e0667e66ea236c0432e42e98f2752d5bc69b3cc445f6a1db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03713656e9c3ca05e0667e66ea236c0432e42e98f2752d5bc69b3cc445f6a1db", kill_on_drop: false }`
[INFO] [stdout] 03713656e9c3ca05e0667e66ea236c0432e42e98f2752d5bc69b3cc445f6a1db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bf2de0e0947f6f4424e49f40659e8795e2411b2e400a814232e74e2daa430c2
[INFO] running `Command { std: "docker" "start" "-a" "6bf2de0e0947f6f4424e49f40659e8795e2411b2e400a814232e74e2daa430c2", kill_on_drop: false }`
[INFO] [stderr]     Checking lessjs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Call` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | enum Precedence {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     Call,           // myFunction()
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Precedence` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lexer/mod.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(input: &'a str) -> Lexer {
[INFO] [stdout]    |                        --         ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(input: &'a str) -> Lexer<'a> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Node` is never used
[INFO] [stdout]  --> src/ast.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait Node : ToString {
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Expression` is never used
[INFO] [stdout]  --> src/ast.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub trait Expression : Node {
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Statement` is never used
[INFO] [stdout]   --> src/ast.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait Statement : Node {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]   --> src/ast.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Program {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Identifier` is never constructed
[INFO] [stdout]   --> src/ast.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Identifier {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NumberLiteral` is never constructed
[INFO] [stdout]   --> src/ast.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct NumberLiteral {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoOpExpression` is never constructed
[INFO] [stdout]   --> src/ast.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub struct NoOpExpression;
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PrefixExpression` is never constructed
[INFO] [stdout]   --> src/ast.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub struct PrefixExpression {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InfixExpression` is never constructed
[INFO] [stdout]   --> src/ast.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub struct InfixExpression {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LetStatement` is never constructed
[INFO] [stdout]    --> src/ast.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 | pub struct LetStatement {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ReturnStatement` is never constructed
[INFO] [stdout]    --> src/ast.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub struct ReturnStatement {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ExpressionStatement` is never constructed
[INFO] [stdout]    --> src/ast.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub struct ExpressionStatement {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `PrefixParseFn` is never used
[INFO] [stdout]   --> src/parser/mod.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | type PrefixParseFn = fn(&mut Parser) -> Option<Box<dyn ast::Expression>>;
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `InfixParseFn` is never used
[INFO] [stdout]   --> src/parser/mod.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | type InfixParseFn = fn(&mut Parser, Box<dyn ast::Expression>) -> Option<Box<dyn ast::Expression>>;
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Precedence` is never used
[INFO] [stdout]   --> src/parser/mod.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | enum Precedence {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub struct Parser<'a> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/parser/mod.rs:56:12
[INFO] [stdout]     |
[INFO] [stdout]  55 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout]  56 |     pub fn new(lexer: Lexer<'a>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  86 |     pub fn errors(&self) -> &Vec<String> { &self.errors }
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]  87 |
[INFO] [stdout]  88 |     pub fn parse_program(&mut self) -> ast::Program {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  99 |     pub fn parse_statement(&mut self) -> Option<Box<dyn ast::Statement>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     fn parse_let_statement(&mut self) -> Option<Box<dyn ast::Statement>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 128 |     fn parse_return_statement(&mut self) -> Option<Box<dyn ast::Statement>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 140 |     fn parse_expression_statement(&mut self) -> Option<Box<dyn ast::Statement>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     fn parse_expression(&mut self, precedence: Precedence) -> Option<Box<dyn ast::Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 175 |     fn parse_identifier(parser: &mut Parser) -> Option<Box<dyn ast::Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 180 |     fn parse_number(parser: &mut Parser) -> Option<Box<dyn ast::Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 210 |     fn parse_prefix_expression(parser: &mut Parser) -> Option<Box<dyn ast::Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 220 |     fn parse_infix_expression(parser: &mut Parser, lhs: Box<dyn ast::Expression>) -> Option<Box<dyn ast::Expression>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 235 |     fn next_token(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 240 |     fn expect_peak(&mut self, expect: TokenKind) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 250 |     fn peak_error(&mut self, expect: TokenKind) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 256 |     fn no_prefix_error(&mut self, kind: TokenKind) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 261 |     fn peak_precedence(&self) -> Precedence {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 268 |     fn current_precedence(&self) -> Precedence {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/lexer/mod.rs:15:35
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(input: &'a str) -> Lexer {
[INFO] [stdout]    |                        --         ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new(input: &'a str) -> Lexer<'a> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "6bf2de0e0947f6f4424e49f40659e8795e2411b2e400a814232e74e2daa430c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bf2de0e0947f6f4424e49f40659e8795e2411b2e400a814232e74e2daa430c2", kill_on_drop: false }`
[INFO] [stdout] 6bf2de0e0947f6f4424e49f40659e8795e2411b2e400a814232e74e2daa430c2
