[INFO] cloning repository https://github.com/iolsen/sfb
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iolsen/sfb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiolsen%2Fsfb"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiolsen%2Fsfb'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cd83ec39b141f64d62c1f3f6e555350d864b82b1
[INFO] checking iolsen/sfb against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiolsen%2Fsfb" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iolsen/sfb on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/iolsen/sfb
[INFO] finished tweaking git repo https://github.com/iolsen/sfb
[INFO] tweaked toml for git repo https://github.com/iolsen/sfb written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/iolsen/sfb already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7453f3ae2a9fd5f1d756d3ce344e95a07310b4114af9c770de788980fc4a577f
[INFO] running `"docker" "start" "-a" "7453f3ae2a9fd5f1d756d3ce344e95a07310b4114af9c770de788980fc4a577f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking sfb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: enum is never used: `Facing`
[INFO] [stderr]   --> src/hex.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub enum Facing {
[INFO] [stderr]    |          ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MIN_COL`
[INFO] [stderr]   --> src/hex.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | const MIN_COL: i8 = 1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MAX_COL`
[INFO] [stderr]   --> src/hex.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | const MAX_COL: i8 = 60;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MIN_ROW`
[INFO] [stderr]   --> src/hex.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | const MIN_ROW: i8 = 1;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `MAX_ROW`
[INFO] [stderr]   --> src/hex.rs:24:1
[INFO] [stderr]    |
[INFO] [stderr] 24 | const MAX_ROW: i8 = 30;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `OOB_HEX`
[INFO] [stderr]   --> src/hex.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | const OOB_HEX: Hex = Hex { col: 0, row: 0, _private: () };
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `DIRECTIONS`
[INFO] [stderr]   --> src/hex.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | / const DIRECTIONS: [[[i8; 2]; 6]; 2] = [
[INFO] [stderr] 29 | |     [[0,-1], [1,0], [1,1], [0,1], [-1,1], [-1,0]],
[INFO] [stderr] 30 | |     [[0,-1], [1,-1], [1,0], [0,1], [-1,0], [-1,-1]]
[INFO] [stderr] 31 | | ];
[INFO] [stderr]    | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Cube`
[INFO] [stderr]   --> src/hex.rs:47:8
[INFO] [stderr]    |
[INFO] [stderr] 47 | struct Cube {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/hex.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn new(col: i8, row: i8) -> Hex {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `number`
[INFO] [stderr]   --> src/hex.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn number(&self) -> String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `neighbor`
[INFO] [stderr]   --> src/hex.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn neighbor(&self, f: Facing) -> Hex {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `distance_to`
[INFO] [stderr]   --> src/hex.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn distance_to(&self, other: Hex) -> i8 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_oob`
[INFO] [stderr]   --> src/hex.rs:79:5
[INFO] [stderr]    |
[INFO] [stderr] 79 |     fn is_oob(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_cube`
[INFO] [stderr]   --> src/hex.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     fn to_cube(&self) -> Cube {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `cubic_distance`
[INFO] [stderr]    --> src/hex.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     fn cubic_distance(a: Cube, b: Cube) -> i8 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `"docker" "inspect" "7453f3ae2a9fd5f1d756d3ce344e95a07310b4114af9c770de788980fc4a577f"`
[INFO] running `"docker" "rm" "-f" "7453f3ae2a9fd5f1d756d3ce344e95a07310b4114af9c770de788980fc4a577f"`
[INFO] [stdout] 7453f3ae2a9fd5f1d756d3ce344e95a07310b4114af9c770de788980fc4a577f