[INFO] cloning repository https://github.com/uninhm/unicc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uninhm/unicc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funinhm%2Funicc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funinhm%2Funicc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 297c48c063447bb158dfa2c9db7d099b35246fef
[INFO] checking uninhm/unicc against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funinhm%2Funicc" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/uninhm/unicc
[INFO] finished tweaking git repo https://github.com/uninhm/unicc
[INFO] tweaked toml for git repo https://github.com/uninhm/unicc written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/uninhm/unicc on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/uninhm/unicc 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b4fd04afda00c0807bf9b037b2b0629ad4fbd8814ee8ca7c2f9a210750777aaa
[INFO] running `Command { std: "docker" "start" "b4fd04afda00c0807bf9b037b2b0629ad4fbd8814ee8ca7c2f9a210750777aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4fd04afda00c0807bf9b037b2b0629ad4fbd8814ee8ca7c2f9a210750777aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b4fd04afda00c0807bf9b037b2b0629ad4fbd8814ee8ca7c2f9a210750777aaa" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4fd04afda00c0807bf9b037b2b0629ad4fbd8814ee8ca7c2f9a210750777aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b4fd04afda00c0807bf9b037b2b0629ad4fbd8814ee8ca7c2f9a210750777aaa" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking unicc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Colon` and `QuestionMark` are never constructed
[INFO] [stdout]   --> src/lexer.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum Token {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 32 |     Colon,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 33 |     QuestionMark,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `append` is never used
[INFO] [stdout]   --> src/codegen.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Code {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn append(&mut self, other: Self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Colon` and `QuestionMark` are never constructed
[INFO] [stdout]   --> src/lexer.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | pub enum Token {
[INFO] [stdout]    |          ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 32 |     Colon,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 33 |     QuestionMark,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `append` is never used
[INFO] [stdout]   --> src/codegen.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Code {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn append(&mut self, other: Self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "b4fd04afda00c0807bf9b037b2b0629ad4fbd8814ee8ca7c2f9a210750777aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4fd04afda00c0807bf9b037b2b0629ad4fbd8814ee8ca7c2f9a210750777aaa", kill_on_drop: false }`
[INFO] [stdout] b4fd04afda00c0807bf9b037b2b0629ad4fbd8814ee8ca7c2f9a210750777aaa
