[INFO] cloning repository https://github.com/enes-ekrem-ergunesh/pl-connect4-13
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/enes-ekrem-ergunesh/pl-connect4-13" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenes-ekrem-ergunesh%2Fpl-connect4-13", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenes-ekrem-ergunesh%2Fpl-connect4-13'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 842576b00561e1a567dc7824c64d167923a7c758
[INFO] checking enes-ekrem-ergunesh/pl-connect4-13 against try#db4e1d23234d93b5e96ecc768b35d9090c32cddf for pr-149901
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenes-ekrem-ergunesh%2Fpl-connect4-13" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/enes-ekrem-ergunesh/pl-connect4-13
[INFO] finished tweaking git repo https://github.com/enes-ekrem-ergunesh/pl-connect4-13
[INFO] tweaked toml for git repo https://github.com/enes-ekrem-ergunesh/pl-connect4-13 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/enes-ekrem-ergunesh/pl-connect4-13 on toolchain db4e1d23234d93b5e96ecc768b35d9090c32cddf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/enes-ekrem-ergunesh/pl-connect4-13 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" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding itoa v1.0.16
[INFO] [stderr]       Adding memchr v2.7.6
[INFO] [stderr]       Adding proc-macro2 v1.0.103
[INFO] [stderr]       Adding quote v1.0.42
[INFO] [stderr]       Adding serde v1.0.228
[INFO] [stderr]       Adding serde_core v1.0.228
[INFO] [stderr]       Adding serde_derive v1.0.228
[INFO] [stderr]       Adding serde_json v1.0.147
[INFO] [stderr]       Adding syn v2.0.111
[INFO] [stderr]       Adding unicode-ident v1.0.22
[INFO] [stderr]       Adding zmij v0.1.7
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38da35f402532256029d323565092093100d39d5accb970e46c59be4f2f07866
[INFO] running `Command { std: "docker" "start" "-a" "38da35f402532256029d323565092093100d39d5accb970e46c59be4f2f07866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38da35f402532256029d323565092093100d39d5accb970e46c59be4f2f07866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38da35f402532256029d323565092093100d39d5accb970e46c59be4f2f07866", kill_on_drop: false }`
[INFO] [stdout] 38da35f402532256029d323565092093100d39d5accb970e46c59be4f2f07866
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40aedc23cee582f0e96ea3d738491805878c4f5c22cd2bcb6b60571f37c01abc
[INFO] running `Command { std: "docker" "start" "-a" "40aedc23cee582f0e96ea3d738491805878c4f5c22cd2bcb6b60571f37c01abc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling serde_json v1.0.147
[INFO] [stderr]     Checking itoa v1.0.16
[INFO] [stderr]     Checking zmij v0.1.7
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking pl-connect4-13 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/storage.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> src/storage.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |             ^^^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/practice.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut a: [[bool; 6]; 7];
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/practice.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut a: [[bool; 6]; 7];
[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/practice.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let mut matrix: [[&u8; 7]; 6] = [
[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/ui.rs:73:7
[INFO] [stdout]    |
[INFO] [stdout] 73 |   let mut isRedPlayer = true;
[INFO] [stdout]    |       ----^^^^^^^^^^^
[INFO] [stdout]    |       |
[INFO] [stdout]    |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `isRedPlayer`
[INFO] [stdout]   --> src/ui.rs:73:7
[INFO] [stdout]    |
[INFO] [stdout] 73 |   let mut isRedPlayer = true;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_isRedPlayer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `drop_to`
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let drop_to = 4;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_drop_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `isRedPlayer` should have a snake case name
[INFO] [stdout]   --> src/ui.rs:73:11
[INFO] [stdout]    |
[INFO] [stdout] 73 |   let mut isRedPlayer = true;
[INFO] [stdout]    |           ^^^^^^^^^^^ help: convert the identifier to snake case: `is_red_player`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/practice.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut a: [[bool; 6]; 7];
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/practice.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut a: [[bool; 6]; 7];
[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/practice.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let mut matrix: [[&u8; 7]; 6] = [
[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/ui.rs:73:7
[INFO] [stdout]    |
[INFO] [stdout] 73 |   let mut isRedPlayer = true;
[INFO] [stdout]    |       ----^^^^^^^^^^^
[INFO] [stdout]    |       |
[INFO] [stdout]    |       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `isRedPlayer`
[INFO] [stdout]   --> src/ui.rs:73:7
[INFO] [stdout]    |
[INFO] [stdout] 73 |   let mut isRedPlayer = true;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_isRedPlayer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `drop_to`
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let drop_to = 4;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_drop_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `isRedPlayer` should have a snake case name
[INFO] [stdout]   --> src/ui.rs:73:11
[INFO] [stdout]    |
[INFO] [stdout] 73 |   let mut isRedPlayer = true;
[INFO] [stdout]    |           ^^^^^^^^^^^ help: convert the identifier to snake case: `is_red_player`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.43s
[INFO] running `Command { std: "docker" "inspect" "40aedc23cee582f0e96ea3d738491805878c4f5c22cd2bcb6b60571f37c01abc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40aedc23cee582f0e96ea3d738491805878c4f5c22cd2bcb6b60571f37c01abc", kill_on_drop: false }`
[INFO] [stdout] 40aedc23cee582f0e96ea3d738491805878c4f5c22cd2bcb6b60571f37c01abc
