[INFO] cloning repository https://github.com/jkmrto/project-euler-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jkmrto/project-euler-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkmrto%2Fproject-euler-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkmrto%2Fproject-euler-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b91df3aa84c5e29ccb596d93143d295babfad29
[INFO] checking jkmrto/project-euler-rust against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkmrto%2Fproject-euler-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jkmrto/project-euler-rust on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jkmrto/project-euler-rust
[INFO] finished tweaking git repo https://github.com/jkmrto/project-euler-rust
[INFO] tweaked toml for git repo https://github.com/jkmrto/project-euler-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jkmrto/project-euler-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1283a6ee0713649c7cf544b8a4005866c59abfec347b78f1ad37c195b2b9b70
[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" "f1283a6ee0713649c7cf544b8a4005866c59abfec347b78f1ad37c195b2b9b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1283a6ee0713649c7cf544b8a4005866c59abfec347b78f1ad37c195b2b9b70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1283a6ee0713649c7cf544b8a4005866c59abfec347b78f1ad37c195b2b9b70", kill_on_drop: false }`
[INFO] [stdout] f1283a6ee0713649c7cf544b8a4005866c59abfec347b78f1ad37c195b2b9b70
[INFO] running `Command { std: "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" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46812bba5417b681738cc226aa576af7d333d1bdb71c81bfc23b172e2d7c50cc
[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" "46812bba5417b681738cc226aa576af7d333d1bdb71c81bfc23b172e2d7c50cc", kill_on_drop: false }`
[INFO] [stderr]     Checking proejct-euler-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/read_csv.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/read_csv.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matrix`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let matrix = read_csv::read_matrix_from_file(&filename);
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_matrix`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/position.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(origin: &Position, shift: &Position, moves: usize) -> Position {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matrix`
[INFO] [stdout]  --> src/main.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let matrix = read_csv::read_matrix_from_file(&filename);
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_matrix`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `shift`
[INFO] [stdout]   --> src/position.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn shift(&mut self, shift: &Position) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `several_shift`
[INFO] [stdout]   --> src/position.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn several_shift(&mut self, shift: &Position, n_moves: usize) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_valid_index`
[INFO] [stdout]  --> src/exercise_11.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn is_valid_index(position: &Position, matrix: &Vec<Vec<u32>>) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `update_positions`
[INFO] [stdout]  --> src/exercise_11.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn update_positions(positions: &mut [Position; 3], shift: &Position) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_positions`
[INFO] [stdout]   --> src/exercise_11.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn print_positions(positions: &[Position; 3]) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calculate_product`
[INFO] [stdout]   --> src/exercise_11.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn calculate_product(matrix: &Vec<Vec<u32>>, positions: &[Position; 3]) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `init_positions`
[INFO] [stdout]   --> src/exercise_11.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn init_positions(origin: &Position, shift: &Position) -> [Position; 3] {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `choose_bigger`
[INFO] [stdout]   --> src/exercise_11.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn choose_bigger(v1: u32, v2: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_max_product`
[INFO] [stdout]   --> src/exercise_11.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn find_max_product(matrix: &Vec<Vec<u32>>, origin: &Position, shift: &Position) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_max_product_with_origin_swap`
[INFO] [stdout]   --> src/exercise_11.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn find_max_product_with_origin_swap(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_positions`
[INFO] [stdout]   --> src/exercise_11.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn print_positions(positions: &[Position; 3]) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "46812bba5417b681738cc226aa576af7d333d1bdb71c81bfc23b172e2d7c50cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46812bba5417b681738cc226aa576af7d333d1bdb71c81bfc23b172e2d7c50cc", kill_on_drop: false }`
[INFO] [stdout] 46812bba5417b681738cc226aa576af7d333d1bdb71c81bfc23b172e2d7c50cc