[INFO] cloning repository https://github.com/curtisxk38/rlox-tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/curtisxk38/rlox-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcurtisxk38%2Frlox-tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcurtisxk38%2Frlox-tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b49117327dfe29f527a5765a3b7c9fd76ff627d7
[INFO] checking curtisxk38/rlox-tree against master#64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 for pr-143929
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcurtisxk38%2Frlox-tree" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/curtisxk38/rlox-tree
[INFO] finished tweaking git repo https://github.com/curtisxk38/rlox-tree
[INFO] tweaked toml for git repo https://github.com/curtisxk38/rlox-tree written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/curtisxk38/rlox-tree on toolchain 64b185eddaa1d7ddf5e0c024be23b9cbba6c1722
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/curtisxk38/rlox-tree 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" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "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-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 349f83c605e701956d88436afcaf895e51a23e26f01a423e96c7d573b319eb25
[INFO] running `Command { std: "docker" "start" "-a" "349f83c605e701956d88436afcaf895e51a23e26f01a423e96c7d573b319eb25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "349f83c605e701956d88436afcaf895e51a23e26f01a423e96c7d573b319eb25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "349f83c605e701956d88436afcaf895e51a23e26f01a423e96c7d573b319eb25", kill_on_drop: false }`
[INFO] [stdout] 349f83c605e701956d88436afcaf895e51a23e26f01a423e96c7d573b319eb25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b579216a9c3a17628af35e618b1be0cbc21894d26e5956a933568ef9da4847d
[INFO] running `Command { std: "docker" "start" "-a" "6b579216a9c3a17628af35e618b1be0cbc21894d26e5956a933568ef9da4847d", kill_on_drop: false }`
[INFO] [stderr]     Checking lox-tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `message` is never read
[INFO] [stdout]  --> src/error.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(crate) struct LoxError {
[INFO] [stdout]   |                   -------- field in this struct
[INFO] [stdout] 9 |     pub message: &'static str,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `LoxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]   --> src/ast.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub(crate) struct Binary {
[INFO] [stdout]    |                   ------ field in this struct
[INFO] [stdout] 48 |     pub token: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Binary` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]   --> src/ast.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub(crate) struct Unary {
[INFO] [stdout]    |                   ----- field in this struct
[INFO] [stdout] 56 |     pub token: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Unary` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]   --> src/ast.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub(crate) struct Literal {
[INFO] [stdout]    |                   ------- field in this struct
[INFO] [stdout] 63 |     pub token: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]   --> src/ast.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub(crate) struct Logical {
[INFO] [stdout]    |                   ------- field in this struct
[INFO] [stdout] 85 |     pub token: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Logical` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]   --> src/ast.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub(crate) struct Call {
[INFO] [stdout]    |                   ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 95 |     pub token: Token, // token for closing ")" after call
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Call` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub(crate) struct PrintStatement {
[INFO] [stdout]     |                   -------------- field in this struct
[INFO] [stdout] 142 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PrintStatement` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]    --> src/ast.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub(crate) struct ReturnStatement {
[INFO] [stdout]     |                   --------------- field in this struct
[INFO] [stdout] 179 |     pub keyword: Token,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ReturnStatement` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `message` is never read
[INFO] [stdout]  --> src/error.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub(crate) struct LoxError {
[INFO] [stdout]   |                   -------- field in this struct
[INFO] [stdout] 9 |     pub message: &'static str,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `LoxError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]   --> src/ast.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub(crate) struct Binary {
[INFO] [stdout]    |                   ------ field in this struct
[INFO] [stdout] 48 |     pub token: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Binary` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]   --> src/ast.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub(crate) struct Unary {
[INFO] [stdout]    |                   ----- field in this struct
[INFO] [stdout] 56 |     pub token: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Unary` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]   --> src/ast.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub(crate) struct Literal {
[INFO] [stdout]    |                   ------- field in this struct
[INFO] [stdout] 63 |     pub token: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Literal` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]   --> src/ast.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub(crate) struct Logical {
[INFO] [stdout]    |                   ------- field in this struct
[INFO] [stdout] 85 |     pub token: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Logical` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]   --> src/ast.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub(crate) struct Call {
[INFO] [stdout]    |                   ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 95 |     pub token: Token, // token for closing ")" after call
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Call` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 141 | pub(crate) struct PrintStatement {
[INFO] [stdout]     |                   -------------- field in this struct
[INFO] [stdout] 142 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PrintStatement` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]    --> src/ast.rs:179:9
[INFO] [stdout]     |
[INFO] [stdout] 178 | pub(crate) struct ReturnStatement {
[INFO] [stdout]     |                   --------------- field in this struct
[INFO] [stdout] 179 |     pub keyword: Token,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ReturnStatement` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "6b579216a9c3a17628af35e618b1be0cbc21894d26e5956a933568ef9da4847d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b579216a9c3a17628af35e618b1be0cbc21894d26e5956a933568ef9da4847d", kill_on_drop: false }`
[INFO] [stdout] 6b579216a9c3a17628af35e618b1be0cbc21894d26e5956a933568ef9da4847d