[INFO] cloning repository https://github.com/kilianmandscharo/monkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kilianmandscharo/monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkilianmandscharo%2Fmonkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkilianmandscharo%2Fmonkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad008241609d1ae57a660f8570f1103e9a13309a
[INFO] checking kilianmandscharo/monkey against try#f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208 for pr-139419
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkilianmandscharo%2Fmonkey" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kilianmandscharo/monkey on toolchain f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kilianmandscharo/monkey
[INFO] finished tweaking git repo https://github.com/kilianmandscharo/monkey
[INFO] tweaked toml for git repo https://github.com/kilianmandscharo/monkey written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kilianmandscharo/monkey 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" "+f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2190b1bcdb3e3126654e1215570bd9aa804ccda72318c43dfa14e7f43d32ef67
[INFO] running `Command { std: "docker" "start" "-a" "2190b1bcdb3e3126654e1215570bd9aa804ccda72318c43dfa14e7f43d32ef67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2190b1bcdb3e3126654e1215570bd9aa804ccda72318c43dfa14e7f43d32ef67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2190b1bcdb3e3126654e1215570bd9aa804ccda72318c43dfa14e7f43d32ef67", kill_on_drop: false }`
[INFO] [stdout] 2190b1bcdb3e3126654e1215570bd9aa804ccda72318c43dfa14e7f43d32ef67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+f45c1ab62d4de6b63f69b4daa9d1f0b90c38a208" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db87dd8fd4a90a432f25d82a41a93a62f909e56902febf579a49c519bc05e78e
[INFO] running `Command { std: "docker" "start" "-a" "db87dd8fd4a90a432f25d82a41a93a62f909e56902febf579a49c519bc05e78e", kill_on_drop: false }`
[INFO] [stderr]     Checking monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub struct ExpressionStatement {
[INFO] [stdout]     |            ------------------- field in this struct
[INFO] [stdout] 111 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ExpressionStatement` has a derived impl for the trait `Clone`, 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:123:9
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub struct BlockStatement {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 123 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BlockStatement` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct PrefixExpression {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] 172 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PrefixExpression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:185:9
[INFO] [stdout]     |
[INFO] [stdout] 184 | pub struct InfixExpression {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 185 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InfixExpression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 227 | pub struct IfExpression {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 228 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IfExpression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:279:9
[INFO] [stdout]     |
[INFO] [stdout] 278 | pub struct ArrayLiteral {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 279 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ArrayLiteral` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:299:9
[INFO] [stdout]     |
[INFO] [stdout] 298 | pub struct CallExpression {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 299 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CallExpression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 320 | pub struct IndexExpression {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 321 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IndexExpression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:334:9
[INFO] [stdout]     |
[INFO] [stdout] 333 | pub struct MapLiteral {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] 334 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MapLiteral` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub struct ExpressionStatement {
[INFO] [stdout]     |            ------------------- field in this struct
[INFO] [stdout] 111 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ExpressionStatement` has a derived impl for the trait `Clone`, 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:123:9
[INFO] [stdout]     |
[INFO] [stdout] 122 | pub struct BlockStatement {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 123 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BlockStatement` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct PrefixExpression {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] 172 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `PrefixExpression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:185:9
[INFO] [stdout]     |
[INFO] [stdout] 184 | pub struct InfixExpression {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 185 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `InfixExpression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 227 | pub struct IfExpression {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 228 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IfExpression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:279:9
[INFO] [stdout]     |
[INFO] [stdout] 278 | pub struct ArrayLiteral {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 279 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ArrayLiteral` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:299:9
[INFO] [stdout]     |
[INFO] [stdout] 298 | pub struct CallExpression {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 299 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CallExpression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:321:9
[INFO] [stdout]     |
[INFO] [stdout] 320 | pub struct IndexExpression {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 321 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IndexExpression` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]    --> src/ast.rs:334:9
[INFO] [stdout]     |
[INFO] [stdout] 333 | pub struct MapLiteral {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] 334 |     pub token: Token,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `MapLiteral` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "db87dd8fd4a90a432f25d82a41a93a62f909e56902febf579a49c519bc05e78e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db87dd8fd4a90a432f25d82a41a93a62f909e56902febf579a49c519bc05e78e", kill_on_drop: false }`
[INFO] [stdout] db87dd8fd4a90a432f25d82a41a93a62f909e56902febf579a49c519bc05e78e