[INFO] fetching crate backgammon 0.1.0...
[INFO] checking backgammon-0.1.0 against master#6d69caba110c0c2fb90180df1cbc8be5033b91d4 for pr-69530
[INFO] extracting crate backgammon 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate backgammon 0.1.0 on toolchain 6d69caba110c0c2fb90180df1cbc8be5033b91d4
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate backgammon 0.1.0
[INFO] finished tweaking crates.io crate backgammon 0.1.0
[INFO] tweaked toml for crates.io crate backgammon 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9dbfbc404f6df7d43f8931425452c22527e15529c10746cd05e49da2706b4281
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "9dbfbc404f6df7d43f8931425452c22527e15529c10746cd05e49da2706b4281"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking backgammon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `cube`
[INFO] [stderr]   --> src/lib.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     cube: i8,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `points`
[INFO] [stderr]   --> src/lib.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     points: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `history`
[INFO] [stderr]   --> src/lib.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     history: Vec<State>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `max_points`
[INFO] [stderr]   --> src/lib.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     max_points: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `history`
[INFO] [stderr]   --> src/lib.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     history: Vec<Game>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `roll`
[INFO] [stderr]    --> src/lib.rs:121:4
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn roll() -> [u8; 2] {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `cube`
[INFO] [stderr]   --> src/lib.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     cube: i8,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `points`
[INFO] [stderr]   --> src/lib.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     points: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `history`
[INFO] [stderr]   --> src/lib.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     history: Vec<State>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `max_points`
[INFO] [stderr]   --> src/lib.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     max_points: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `history`
[INFO] [stderr]   --> src/lib.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     history: Vec<Game>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `roll`
[INFO] [stderr]    --> src/lib.rs:121:4
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn roll() -> [u8; 2] {
[INFO] [stderr]     |    ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "9dbfbc404f6df7d43f8931425452c22527e15529c10746cd05e49da2706b4281"`
[INFO] running `"docker" "rm" "-f" "9dbfbc404f6df7d43f8931425452c22527e15529c10746cd05e49da2706b4281"`
[INFO] [stdout] 9dbfbc404f6df7d43f8931425452c22527e15529c10746cd05e49da2706b4281