[INFO] cloning repository https://github.com/benito2268/a-cool-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benito2268/a-cool-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenito2268%2Fa-cool-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenito2268%2Fa-cool-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a707a2181798355e3d6d227a121ac73a4db698ca
[INFO] checking benito2268/a-cool-interpreter against try#54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47 for pr-153041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenito2268%2Fa-cool-interpreter" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/benito2268/a-cool-interpreter
[INFO] finished tweaking git repo https://github.com/benito2268/a-cool-interpreter
[INFO] tweaked toml for git repo https://github.com/benito2268/a-cool-interpreter written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/benito2268/a-cool-interpreter on toolchain 54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/benito2268/a-cool-interpreter 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" "+54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b1f313c3152f294c190294afbacab075b7e12c992d56bdf37c66c8260b9f760
[INFO] running `Command { std: "docker" "start" "-a" "3b1f313c3152f294c190294afbacab075b7e12c992d56bdf37c66c8260b9f760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b1f313c3152f294c190294afbacab075b7e12c992d56bdf37c66c8260b9f760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b1f313c3152f294c190294afbacab075b7e12c992d56bdf37c66c8260b9f760", kill_on_drop: false }`
[INFO] [stdout] 3b1f313c3152f294c190294afbacab075b7e12c992d56bdf37c66c8260b9f760
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+54bb9bb1bbe87f59b5a2e9afea4c8cedcf5e0b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84405bd1b55f8819f63a61f55caa88edcc24fb194895a4ff21adbd42652bc4f6
[INFO] running `Command { std: "docker" "start" "-a" "84405bd1b55f8819f63a61f55caa88edcc24fb194895a4ff21adbd42652bc4f6", kill_on_drop: false }`
[INFO] [stderr]     Checking interpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `lexeme` and `line` are never read
[INFO] [stdout]   --> src/lexer/token.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Token {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 17 |     toktype: TokenType,
[INFO] [stdout] 18 |     lexeme: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 19 |     line: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new_binary`, `new_unary`, `new_grouping`, and `new_literal` are never used
[INFO] [stdout]   --> src/parser/expression.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Expr {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 19 |     fn new_binary(left: Expr, operator: token::Token, right: Expr) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn new_unary(operator: token::Token, right: Expr) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn new_grouping(expr: Expr) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn new_literal(value: literal::Literal) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `lexeme` and `line` are never read
[INFO] [stdout]   --> src/lexer/token.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Token {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 17 |     toktype: TokenType,
[INFO] [stdout] 18 |     lexeme: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 19 |     line: usize,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new_binary`, `new_unary`, `new_grouping`, and `new_literal` are never used
[INFO] [stdout]   --> src/parser/expression.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Expr {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 19 |     fn new_binary(left: Expr, operator: token::Token, right: Expr) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn new_unary(operator: token::Token, right: Expr) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     fn new_grouping(expr: Expr) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 40 |     fn new_literal(value: literal::Literal) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "84405bd1b55f8819f63a61f55caa88edcc24fb194895a4ff21adbd42652bc4f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84405bd1b55f8819f63a61f55caa88edcc24fb194895a4ff21adbd42652bc4f6", kill_on_drop: false }`
[INFO] [stdout] 84405bd1b55f8819f63a61f55caa88edcc24fb194895a4ff21adbd42652bc4f6