[INFO] cloning repository https://github.com/kotobukid/RollLang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kotobukid/RollLang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkotobukid%2FRollLang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkotobukid%2FRollLang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5d6fd262ee7eaa5ff00191889d260917f8f632e
[INFO] checking kotobukid/RollLang against master#c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2 for pr-142712
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkotobukid%2FRollLang" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kotobukid/RollLang
[INFO] finished tweaking git repo https://github.com/kotobukid/RollLang
[INFO] tweaked toml for git repo https://github.com/kotobukid/RollLang written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kotobukid/RollLang on toolchain c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kotobukid/RollLang 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" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c8e85809bb5c836508fd747dcd57e203879c8d3faa8cef3a54bb202aa04c2b2
[INFO] running `Command { std: "docker" "start" "-a" "0c8e85809bb5c836508fd747dcd57e203879c8d3faa8cef3a54bb202aa04c2b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c8e85809bb5c836508fd747dcd57e203879c8d3faa8cef3a54bb202aa04c2b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c8e85809bb5c836508fd747dcd57e203879c8d3faa8cef3a54bb202aa04c2b2", kill_on_drop: false }`
[INFO] [stdout] 0c8e85809bb5c836508fd747dcd57e203879c8d3faa8cef3a54bb202aa04c2b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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_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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11570a247b936ce15e037876fbed4e1564fabedabcd3deac0de7bf37f4835821
[INFO] running `Command { std: "docker" "start" "-a" "11570a247b936ce15e037876fbed4e1564fabedabcd3deac0de7bf37f4835821", kill_on_drop: false }`
[INFO] [stderr]     Checking roll_lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |             _ => write!(f, "unknown token")
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/token.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |             Cat::ILLEGAL => write!(f, "ILLEGAL"),
[INFO] [stdout]    |             ------------ matches some of the same values
[INFO] [stdout] 43 |             Cat::EOF => write!(f, "EOF"),
[INFO] [stdout]    |             -------- matches some of the same values
[INFO] [stdout] 44 |             Cat::IDENT => write!(f, "IDENT"),
[INFO] [stdout]    |             ---------- matches some of the same values
[INFO] [stdout] 45 |             Cat::INT => write!(f, "INT"),
[INFO] [stdout]    |             -------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 56 |             _ => write!(f, "unknown token")
[INFO] [stdout]    |             ^ ...and 10 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/token.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |             _ => write!(f, "unknown token")
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/token.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 42 |             Cat::ILLEGAL => write!(f, "ILLEGAL"),
[INFO] [stdout]    |             ------------ matches some of the same values
[INFO] [stdout] 43 |             Cat::EOF => write!(f, "EOF"),
[INFO] [stdout]    |             -------- matches some of the same values
[INFO] [stdout] 44 |             Cat::IDENT => write!(f, "IDENT"),
[INFO] [stdout]    |             ---------- matches some of the same values
[INFO] [stdout] 45 |             Cat::INT => write!(f, "INT"),
[INFO] [stdout]    |             -------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 56 |             _ => write!(f, "unknown token")
[INFO] [stdout]    |             ^ ...and 10 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "11570a247b936ce15e037876fbed4e1564fabedabcd3deac0de7bf37f4835821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11570a247b936ce15e037876fbed4e1564fabedabcd3deac0de7bf37f4835821", kill_on_drop: false }`
[INFO] [stdout] 11570a247b936ce15e037876fbed4e1564fabedabcd3deac0de7bf37f4835821