[INFO] cloning repository https://github.com/ericthelemur/rs118-tictactoe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ericthelemur/rs118-tictactoe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fericthelemur%2Frs118-tictactoe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fericthelemur%2Frs118-tictactoe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8edfa5ab448f607b99aa49aadbe11dc7d611f16d
[INFO] checking ericthelemur/rs118-tictactoe against master#2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fericthelemur%2Frs118-tictactoe" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ericthelemur/rs118-tictactoe on toolchain 2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ericthelemur/rs118-tictactoe
[INFO] finished tweaking git repo https://github.com/ericthelemur/rs118-tictactoe
[INFO] tweaked toml for git repo https://github.com/ericthelemur/rs118-tictactoe written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ericthelemur/rs118-tictactoe 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" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a11c2cd23ea959f35e64126d98717fc0af005b3d5b762d3a56802cef939622f3
[INFO] running `Command { std: "docker" "start" "-a" "a11c2cd23ea959f35e64126d98717fc0af005b3d5b762d3a56802cef939622f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a11c2cd23ea959f35e64126d98717fc0af005b3d5b762d3a56802cef939622f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a11c2cd23ea959f35e64126d98717fc0af005b3d5b762d3a56802cef939622f3", kill_on_drop: false }`
[INFO] [stdout] a11c2cd23ea959f35e64126d98717fc0af005b3d5b762d3a56802cef939622f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 409426e5721c8f728c70c2722ccbf55e4ddf32b3645beae7497d2ba0c9fd8c35
[INFO] running `Command { std: "docker" "start" "-a" "409426e5721c8f728c70c2722ccbf55e4ddf32b3645beae7497d2ba0c9fd8c35", kill_on_drop: false }`
[INFO] [stderr]     Checking tictactoe v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             _ => "Error",
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             GuessError::ReadError => "Error reading input",
[INFO] [stdout]    |             --------------------- matches some of the same values
[INFO] [stdout] 52 |             GuessError::GuessLengthError => "Guess in the format 'A1'.",
[INFO] [stdout]    |             ---------------------------- matches some of the same values
[INFO] [stdout] 53 |             GuessError::FirstSymbolError => "The first letter should be A, B or C.",
[INFO] [stdout]    |             ---------------------------- matches some of the same values
[INFO] [stdout] 54 |             GuessError::SecondSymbolError => "The second digit should be 1, 2 or 3.",
[INFO] [stdout]    |             ----------------------------- matches some of the same values
[INFO] [stdout] 55 |             _ => "Error",
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             _ => "Error",
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |             GuessError::ReadError => "Error reading input",
[INFO] [stdout]    |             --------------------- matches some of the same values
[INFO] [stdout] 52 |             GuessError::GuessLengthError => "Guess in the format 'A1'.",
[INFO] [stdout]    |             ---------------------------- matches some of the same values
[INFO] [stdout] 53 |             GuessError::FirstSymbolError => "The first letter should be A, B or C.",
[INFO] [stdout]    |             ---------------------------- matches some of the same values
[INFO] [stdout] 54 |             GuessError::SecondSymbolError => "The second digit should be 1, 2 or 3.",
[INFO] [stdout]    |             ----------------------------- matches some of the same values
[INFO] [stdout] 55 |             _ => "Error",
[INFO] [stdout]    |             ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GuessLengthError` is never constructed
[INFO] [stdout]   --> src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | enum GuessError {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] 42 |     ReadError,
[INFO] [stdout] 43 |     GuessLengthError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GuessError` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GuessLengthError` is never constructed
[INFO] [stdout]   --> src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | enum GuessError {
[INFO] [stdout]    |      ---------- variant in this enum
[INFO] [stdout] 42 |     ReadError,
[INFO] [stdout] 43 |     GuessLengthError,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GuessError` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "409426e5721c8f728c70c2722ccbf55e4ddf32b3645beae7497d2ba0c9fd8c35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "409426e5721c8f728c70c2722ccbf55e4ddf32b3645beae7497d2ba0c9fd8c35", kill_on_drop: false }`
[INFO] [stdout] 409426e5721c8f728c70c2722ccbf55e4ddf32b3645beae7497d2ba0c9fd8c35