[INFO] cloning repository https://github.com/ntalbs/rlox-ast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ntalbs/rlox-ast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntalbs%2Frlox-ast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntalbs%2Frlox-ast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ef5d03bbd44d92c040c388a5be1f719b38711fd
[INFO] checking ntalbs/rlox-ast against try#4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7 for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fntalbs%2Frlox-ast" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ntalbs/rlox-ast
[INFO] finished tweaking git repo https://github.com/ntalbs/rlox-ast
[INFO] tweaked toml for git repo https://github.com/ntalbs/rlox-ast written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ntalbs/rlox-ast on toolchain 4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ntalbs/rlox-ast 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" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 20b15a894f89c04393f27a08c6fd4091be206a0b3536c79b61b81d396f38741f
[INFO] running `Command { std: "docker" "start" "20b15a894f89c04393f27a08c6fd4091be206a0b3536c79b61b81d396f38741f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20b15a894f89c04393f27a08c6fd4091be206a0b3536c79b61b81d396f38741f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "20b15a894f89c04393f27a08c6fd4091be206a0b3536c79b61b81d396f38741f" "/opt/rustwide/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20b15a894f89c04393f27a08c6fd4091be206a0b3536c79b61b81d396f38741f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "20b15a894f89c04393f27a08c6fd4091be206a0b3536c79b61b81d396f38741f" "/opt/rustwide/cargo-home/bin/cargo" "+4d8aa70caf2d2f6ef5a31eab47961bf7d0acacb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking rlox-ast v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `error` is never used
[INFO] [stdout]   --> src/main.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn error(line: usize, message: &str) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `report` is never used
[INFO] [stdout]   --> src/main.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn report(line: usize, at: &str, message: &str) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Stmt` is never used
[INFO] [stdout]  --> src/parser.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Stmt {}
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `operator` and `right` are never read
[INFO] [stdout]   --> src/parser.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 |     Unary {
[INFO] [stdout]    |     ----- fields in this variant
[INFO] [stdout] 10 |         operator: Token,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 11 |         right: Box<Expr>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `operator`, `left`, and `right` are never read
[INFO] [stdout]   --> src/parser.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Binary {
[INFO] [stdout]    |     ------ fields in this variant
[INFO] [stdout] 14 |         operator: Token,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 15 |         left: Box<Expr>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 16 |         right: Box<Expr>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Grouping(Box<Expr>),
[INFO] [stdout]    |     -------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 18 -     Grouping(Box<Expr>),
[INFO] [stdout] 18 +     Grouping(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Num(f64),
[INFO] [stdout]    |     --- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 19 -     Num(f64),
[INFO] [stdout] 19 +     Num(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Str(String),
[INFO] [stdout]    |     --- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 20 -     Str(String),
[INFO] [stdout] 20 +     Str(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Bool(bool),
[INFO] [stdout]    |     ---- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 21 -     Bool(bool),
[INFO] [stdout] 21 +     Bool(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `error` is never used
[INFO] [stdout]   --> src/main.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn error(line: usize, message: &str) {
[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 `Visitor` is never used
[INFO] [stdout]   --> src/parser.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | trait Visitor<T> {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `report` is never used
[INFO] [stdout]   --> src/main.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn report(line: usize, at: &str, message: &str) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Stmt` is never used
[INFO] [stdout]  --> src/parser.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Stmt {}
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `operator` and `right` are never read
[INFO] [stdout]   --> src/parser.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  9 |     Unary {
[INFO] [stdout]    |     ----- fields in this variant
[INFO] [stdout] 10 |         operator: Token,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 11 |         right: Box<Expr>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `operator`, `left`, and `right` are never read
[INFO] [stdout]   --> src/parser.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Binary {
[INFO] [stdout]    |     ------ fields in this variant
[INFO] [stdout] 14 |         operator: Token,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 15 |         left: Box<Expr>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 16 |         right: Box<Expr>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |     Grouping(Box<Expr>),
[INFO] [stdout]    |     -------- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 18 -     Grouping(Box<Expr>),
[INFO] [stdout] 18 +     Grouping(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Num(f64),
[INFO] [stdout]    |     --- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 19 -     Num(f64),
[INFO] [stdout] 19 +     Num(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Str(String),
[INFO] [stdout]    |     --- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 20 -     Str(String),
[INFO] [stdout] 20 +     Str(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |     Bool(bool),
[INFO] [stdout]    |     ---- ^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 21 -     Bool(bool),
[INFO] [stdout] 21 +     Bool(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Visitor` is never used
[INFO] [stdout]   --> src/parser.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | trait Visitor<T> {
[INFO] [stdout]    |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `visitUnaryExpr` should have a snake case name
[INFO] [stdout]   --> src/parser.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn visitUnaryExpr(expr: Expr) -> T;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `visit_unary_expr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `visitUnaryExpr` should have a snake case name
[INFO] [stdout]   --> src/parser.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn visitUnaryExpr(expr: Expr) -> T;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `visit_unary_expr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "20b15a894f89c04393f27a08c6fd4091be206a0b3536c79b61b81d396f38741f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b15a894f89c04393f27a08c6fd4091be206a0b3536c79b61b81d396f38741f", kill_on_drop: false }`
[INFO] [stdout] 20b15a894f89c04393f27a08c6fd4091be206a0b3536c79b61b81d396f38741f
