[INFO] cloning repository https://github.com/YJH16120/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YJH16120/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYJH16120%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYJH16120%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f036f20be19a6cd18d974343d31a7a9a0f682b8
[INFO] checking YJH16120/rlox against try#099e089ab723e6ee96175f3496051098c60a4cd4 for pr-140208
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYJH16120%2Frlox" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YJH16120/rlox on toolchain 099e089ab723e6ee96175f3496051098c60a4cd4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+099e089ab723e6ee96175f3496051098c60a4cd4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/YJH16120/rlox
[INFO] finished tweaking git repo https://github.com/YJH16120/rlox
[INFO] tweaked toml for git repo https://github.com/YJH16120/rlox written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/YJH16120/rlox 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" "+099e089ab723e6ee96175f3496051098c60a4cd4" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+099e089ab723e6ee96175f3496051098c60a4cd4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f01450e08961586f9293a030bfa349d2e1f1887992895e036ee653ca8053d2c
[INFO] running `Command { std: "docker" "start" "-a" "0f01450e08961586f9293a030bfa349d2e1f1887992895e036ee653ca8053d2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f01450e08961586f9293a030bfa349d2e1f1887992895e036ee653ca8053d2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f01450e08961586f9293a030bfa349d2e1f1887992895e036ee653ca8053d2c", kill_on_drop: false }`
[INFO] [stdout] 0f01450e08961586f9293a030bfa349d2e1f1887992895e036ee653ca8053d2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+099e089ab723e6ee96175f3496051098c60a4cd4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eae2eadde2a1eee1ea09b30bda19d02d7d66878c1a9671f202f11a77252d3c02
[INFO] running `Command { std: "docker" "start" "-a" "eae2eadde2a1eee1ea09b30bda19d02d7d66878c1a9671f202f11a77252d3c02", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `token_type::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use token_type::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ast::*`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use ast::*;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `token_type::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use token_type::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ast::*`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use ast::*;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `check_tokens` is never used
[INFO] [stdout]   --> src/main.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Lox {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn check_tokens(&self, scanner: Scanner) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_token` is never used
[INFO] [stdout]    --> src/scanner.rs:259:8
[INFO] [stdout]     |
[INFO] [stdout] 16  | impl Scanner {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 259 |     fn add_token(&mut self, kind: TokenType, literal: String) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Ptr` is never used
[INFO] [stdout]  --> src/ast.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Ptr<T> = Box<T>;
[INFO] [stdout]   |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ExprPtr` is never used
[INFO] [stdout]  --> src/ast.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type ExprPtr = Ptr<Expr>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Literal` is never used
[INFO] [stdout]  --> src/ast.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Literal {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]   --> src/ast.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Expr {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stringify` is never used
[INFO] [stdout]   --> src/ast.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn stringify(expr: &Expr) -> String {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `check_tokens` is never used
[INFO] [stdout]   --> src/main.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl Lox {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 56 |     fn check_tokens(&self, scanner: Scanner) {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_token` is never used
[INFO] [stdout]    --> src/scanner.rs:259:8
[INFO] [stdout]     |
[INFO] [stdout] 16  | impl Scanner {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 259 |     fn add_token(&mut self, kind: TokenType, literal: String) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Ptr` is never used
[INFO] [stdout]  --> src/ast.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type Ptr<T> = Box<T>;
[INFO] [stdout]   |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ExprPtr` is never used
[INFO] [stdout]  --> src/ast.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | type ExprPtr = Ptr<Expr>;
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Literal` is never used
[INFO] [stdout]  --> src/ast.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum Literal {
[INFO] [stdout]   |      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]   --> src/ast.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Expr {
[INFO] [stdout]    |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stringify` is never used
[INFO] [stdout]   --> src/ast.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn stringify(expr: &Expr) -> String {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.46s
[INFO] running `Command { std: "docker" "inspect" "eae2eadde2a1eee1ea09b30bda19d02d7d66878c1a9671f202f11a77252d3c02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eae2eadde2a1eee1ea09b30bda19d02d7d66878c1a9671f202f11a77252d3c02", kill_on_drop: false }`
[INFO] [stdout] eae2eadde2a1eee1ea09b30bda19d02d7d66878c1a9671f202f11a77252d3c02