[INFO] cloning repository https://github.com/martskins/monkers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/martskins/monkers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartskins%2Fmonkers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartskins%2Fmonkers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e047a508dac7506a6d25a4638d5b43abbe5dc6e5
[INFO] checking martskins/monkers against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmartskins%2Fmonkers" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/martskins/monkers on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/martskins/monkers
[INFO] finished tweaking git repo https://github.com/martskins/monkers
[INFO] tweaked toml for git repo https://github.com/martskins/monkers written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/martskins/monkers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 625a922e435413b3b3a1bda634fb7c38ad8f06acf0ec4a816fc38cd0b9504601
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "625a922e435413b3b3a1bda634fb7c38ad8f06acf0ec4a816fc38cd0b9504601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "625a922e435413b3b3a1bda634fb7c38ad8f06acf0ec4a816fc38cd0b9504601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625a922e435413b3b3a1bda634fb7c38ad8f06acf0ec4a816fc38cd0b9504601", kill_on_drop: false }`
[INFO] [stdout] 625a922e435413b3b3a1bda634fb7c38ad8f06acf0ec4a816fc38cd0b9504601
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a0bd9c356a598292cec366a28925e72686270dce8b4e1c3a3a9e2e19abe25eb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1a0bd9c356a598292cec366a28925e72686270dce8b4e1c3a3a9e2e19abe25eb", kill_on_drop: false }`
[INFO] [stderr]     Checking monkers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `EvalError`, `Result`
[INFO] [stdout]  --> src/evaluator/object.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::result::{EvalError, Result};
[INFO] [stdout]   |                     ^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/parser/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EvalError`, `Result`
[INFO] [stdout]  --> src/evaluator/object.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::result::{EvalError, Result};
[INFO] [stdout]   |                     ^^^^^^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]   --> src/parser/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::collections::HashMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnsupportedHashKeyType`
[INFO] [stdout]  --> src/evaluator/result.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     UnsupportedHashKeyType(Object),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Illegal`
[INFO] [stdout]  --> src/lexer/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Illegal,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/parser/ast/expression.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn new(operator: Operator, right: Expression) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/parser/ast/expression.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn new(left: Expression, operator: Operator, right: Expression) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/parser/ast/expression.rs:225:12
[INFO] [stdout]     |
[INFO] [stdout] 225 |     pub fn new(cond: Expression, cons: BlockStatement, alt: Option<BlockStatement>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from`
[INFO] [stdout]   --> src/parser/mod.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub fn from(input: &str) -> Parser {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_string_literal_expression`
[INFO] [stdout]    --> src/parser/mod.rs:326:8
[INFO] [stdout]     |
[INFO] [stdout] 326 |     fn parse_string_literal_expression(&self) -> Result<Expression> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UnsupportedHashKeyType`
[INFO] [stdout]  --> src/evaluator/result.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     UnsupportedHashKeyType(Object),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Illegal`
[INFO] [stdout]  --> src/lexer/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Illegal,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/parser/ast/expression.rs:151:12
[INFO] [stdout]     |
[INFO] [stdout] 151 |     pub fn new(operator: Operator, right: Expression) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/parser/ast/expression.rs:179:12
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn new(left: Expression, operator: Operator, right: Expression) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/parser/ast/expression.rs:225:12
[INFO] [stdout]     |
[INFO] [stdout] 225 |     pub fn new(cond: Expression, cons: BlockStatement, alt: Option<BlockStatement>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_string_literal_expression`
[INFO] [stdout]    --> src/parser/mod.rs:326:8
[INFO] [stdout]     |
[INFO] [stdout] 326 |     fn parse_string_literal_expression(&self) -> Result<Expression> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.14s
[INFO] running `Command { std: "docker" "inspect" "1a0bd9c356a598292cec366a28925e72686270dce8b4e1c3a3a9e2e19abe25eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a0bd9c356a598292cec366a28925e72686270dce8b4e1c3a3a9e2e19abe25eb", kill_on_drop: false }`
[INFO] [stdout] 1a0bd9c356a598292cec366a28925e72686270dce8b4e1c3a3a9e2e19abe25eb