[INFO] cloning repository https://github.com/lduchosal/battlesnake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lduchosal/battlesnake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flduchosal%2Fbattlesnake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flduchosal%2Fbattlesnake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0906c57460605be8f3aa55eedaa044abed3307eb
[INFO] checking lduchosal/battlesnake against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flduchosal%2Fbattlesnake" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lduchosal/battlesnake on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lduchosal/battlesnake
[INFO] finished tweaking git repo https://github.com/lduchosal/battlesnake
[INFO] tweaked toml for git repo https://github.com/lduchosal/battlesnake written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/lduchosal/battlesnake already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 498e2cbf18df9ebc2ff23b28f4659fe7cd9ed1b1e111e7cbe7dda76cda3fd4ea
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "498e2cbf18df9ebc2ff23b28f4659fe7cd9ed1b1e111e7cbe7dda76cda3fd4ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "498e2cbf18df9ebc2ff23b28f4659fe7cd9ed1b1e111e7cbe7dda76cda3fd4ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "498e2cbf18df9ebc2ff23b28f4659fe7cd9ed1b1e111e7cbe7dda76cda3fd4ea", kill_on_drop: false }`
[INFO] [stdout] 498e2cbf18df9ebc2ff23b28f4659fe7cd9ed1b1e111e7cbe7dda76cda3fd4ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9456727d95e7b44ad2d0ea8f18120946eee06dc7a17ae24338a9b8acb442d638
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9456727d95e7b44ad2d0ea8f18120946eee06dc7a17ae24338a9b8acb442d638", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling cc v1.0.32
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]     Checking chunked_transfer v0.3.1
[INFO] [stderr]     Checking ascii v0.8.7
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling syn v0.15.28
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking tiny_http v0.6.2
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking indextree v3.1.1
[INFO] [stderr]     Checking serde v1.0.89
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking battlesnake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `home`
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let home = "6601";
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_home`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `train`
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let train = "6600";
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_train`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ps`
[INFO] [stdout]    --> src/main.rs:859:29
[INFO] [stdout]     |
[INFO] [stdout] 859 | fn hunt_snakes(game: &Game, ps: &mut Vec<Possible>) {
[INFO] [stdout]     |                             ^^ help: if this is intentional, prefix it with an underscore: `_ps`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:370:13
[INFO] [stdout]     |
[INFO] [stdout] 370 |     fn from(n: std::option::NoneError) -> Self {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `home`
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let home = "6601";
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_home`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `train`
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let train = "6600";
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_train`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ps`
[INFO] [stdout]    --> src/main.rs:859:29
[INFO] [stdout]     |
[INFO] [stdout] 859 | fn hunt_snakes(game: &Game, ps: &mut Vec<Possible>) {
[INFO] [stdout]     |                             ^^ help: if this is intentional, prefix it with an underscore: `_ps`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let mut result: String;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/main.rs:370:13
[INFO] [stdout]     |
[INFO] [stdout] 370 |     fn from(n: std::option::NoneError) -> Self {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |     let mut futur_list = convert_futur_pathes(&mut futur);
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let mut result: String;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |     let mut futur_list = convert_futur_pathes(&mut futur);
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_futur_pathes`
[INFO] [stdout]    --> src/main.rs:218:4
[INFO] [stdout]     |
[INFO] [stdout] 218 | fn print_futur_pathes(pathes: &Vec<Vec<Point>>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 135 |     eat_my_food(&g, &mut possibles);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/main.rs:1066:9
[INFO] [stdout]      |
[INFO] [stdout] 1066 |         parent.append(next_node, arena);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_futur_pathes`
[INFO] [stdout]    --> src/main.rs:218:4
[INFO] [stdout]     |
[INFO] [stdout] 218 | fn print_futur_pathes(pathes: &Vec<Vec<Point>>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 135 |     eat_my_food(&g, &mut possibles);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]     --> src/main.rs:1066:9
[INFO] [stdout]      |
[INFO] [stdout] 1066 |         parent.append(next_node, arena);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.98s
[INFO] running `Command { std: "docker" "inspect" "9456727d95e7b44ad2d0ea8f18120946eee06dc7a17ae24338a9b8acb442d638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9456727d95e7b44ad2d0ea8f18120946eee06dc7a17ae24338a9b8acb442d638", kill_on_drop: false }`
[INFO] [stdout] 9456727d95e7b44ad2d0ea8f18120946eee06dc7a17ae24338a9b8acb442d638