[INFO] cloning repository https://github.com/eeyunkim/variable-lol
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eeyunkim/variable-lol" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feeyunkim%2Fvariable-lol", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feeyunkim%2Fvariable-lol'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 584339f5c686d895ff91d131db1aab669e08b0b4
[INFO] checking eeyunkim/variable-lol against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feeyunkim%2Fvariable-lol" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eeyunkim/variable-lol on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eeyunkim/variable-lol
[INFO] finished tweaking git repo https://github.com/eeyunkim/variable-lol
[INFO] tweaked toml for git repo https://github.com/eeyunkim/variable-lol written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/eeyunkim/variable-lol 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `variables`
[INFO] [stdout]   --> src/main.rs:76:38
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn evaluate_tokens(tokens: &[Token], variables: &HashMap<&str, String>) -> Vec<String> {
[INFO] [stdout]    |                                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variables`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |     let b = vec![1, 2, 3];
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `OpenBracket` is never constructed
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum Token {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 13 |     OpenBracket,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variables`
[INFO] [stdout]   --> src/main.rs:76:38
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn evaluate_tokens(tokens: &[Token], variables: &HashMap<&str, String>) -> Vec<String> {
[INFO] [stdout]    |                                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variables`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/main.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |     let b = vec![1, 2, 3];
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `OpenBracket` is never constructed
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | enum Token {
[INFO] [stdout]    |      ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 13 |     OpenBracket,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 36s
[INFO] running `Command { std: "docker" "inspect" "9d3d9fcbddb90ebe27877305a2d4a516089825950bb8adaf69b699a51e3964bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d3d9fcbddb90ebe27877305a2d4a516089825950bb8adaf69b699a51e3964bc", kill_on_drop: false }`
[INFO] [stdout] 9d3d9fcbddb90ebe27877305a2d4a516089825950bb8adaf69b699a51e3964bc