[INFO] cloning repository https://github.com/komkomh/hello_rust_world
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/komkomh/hello_rust_world" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkomkomh%2Fhello_rust_world", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkomkomh%2Fhello_rust_world'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ec8c1669ad4920123aa7701398507f5969f0381
[INFO] checking komkomh/hello_rust_world against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkomkomh%2Fhello_rust_world" "/workspace/builds/worker-65/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-65/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/komkomh/hello_rust_world on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/komkomh/hello_rust_world
[INFO] finished tweaking git repo https://github.com/komkomh/hello_rust_world
[INFO] tweaked toml for git repo https://github.com/komkomh/hello_rust_world written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] crate git repo https://github.com/komkomh/hello_rust_world already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 416a26677a816e7f9212281a2630d0dcc44a5e101f021c8f95d98ea76d89205b
[INFO] running `Command { std: "docker" "start" "-a" "416a26677a816e7f9212281a2630d0dcc44a5e101f021c8f95d98ea76d89205b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "416a26677a816e7f9212281a2630d0dcc44a5e101f021c8f95d98ea76d89205b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "416a26677a816e7f9212281a2630d0dcc44a5e101f021c8f95d98ea76d89205b", kill_on_drop: false }`
[INFO] [stdout] 416a26677a816e7f9212281a2630d0dcc44a5e101f021c8f95d98ea76d89205b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3560dd20c05b9a7e57e83988697672d1836903705c11e0bd270c372e44eb4068
[INFO] running `Command { std: "docker" "start" "-a" "3560dd20c05b9a7e57e83988697672d1836903705c11e0bd270c372e44eb4068", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]     Checking rand v0.4.4
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking hello_rust_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `get_score`
[INFO] [stdout]   --> src/reversi/hairetsu8_reverse.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn get_score(ban: [[i8; BAN_SIZE]; BAN_SIZE], stone_color: i8) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_score`
[INFO] [stdout]   --> src/reversi/hairetsu8_reverse.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn get_score(ban: [[i8; BAN_SIZE]; BAN_SIZE], stone_color: i8) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_score`
[INFO] [stdout]   --> src/reversi/hairetsu7_points.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn get_score(ban: [[i8; BAN_SIZE]; BAN_SIZE], stone_color: i8) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/reversi/client.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/no795.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         n: String,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/bin/no795.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         m: String,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `borrow1`
[INFO] [stdout]   --> src/bin/borrow_sample.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn borrow1(vec: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `borrow2`
[INFO] [stdout]   --> src/bin/borrow_sample.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn borrow2(vec: &Vec<i32>) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/reversi/client.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut ban = create_ban();
[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: constant is never used: `SEARCH_DEPTH`
[INFO] [stdout]  --> src/reversi/client.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const SEARCH_DEPTH: usize = 5;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_of`
[INFO] [stdout]    --> src/reversi/client.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn value_of(v: i8) -> Option<Stone> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse`
[INFO] [stdout]    --> src/reversi/client.rs:115:8
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn reverse(&self) -> Stone {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_stones`
[INFO] [stdout]    --> src/reversi/client.rs:205:8
[INFO] [stdout]     |
[INFO] [stdout] 205 |     fn get_stones(&self) -> Vec<Stone> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_score`
[INFO] [stdout]    --> src/reversi/client.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 |     fn get_score(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `change_teban`
[INFO] [stdout]    --> src/reversi/client.rs:239:8
[INFO] [stdout]     |
[INFO] [stdout] 239 |     fn change_teban(&self) -> Ban {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `put_stone`
[INFO] [stdout]    --> src/reversi/client.rs:247:8
[INFO] [stdout]     |
[INFO] [stdout] 247 |     fn put_stone(&self, point: (usize, usize)) -> Ban {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_reverse_positions`
[INFO] [stdout]    --> src/reversi/client.rs:279:8
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn get_reverse_positions(&self, position: (usize, usize),
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `borrow1`
[INFO] [stdout]   --> src/bin/borrow_sample.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn borrow1(vec: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `borrow2`
[INFO] [stdout]   --> src/bin/borrow_sample.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn borrow2(vec: &Vec<i32>) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_score`
[INFO] [stdout]   --> src/reversi/hairetsu7_points.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn get_score(ban: [[i8; BAN_SIZE]; BAN_SIZE], stone_color: i8) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/reversi/client.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/no795.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         n: String,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/bin/no795.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         m: String,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/reversi/client.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut ban = create_ban();
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_of`
[INFO] [stdout]    --> src/reversi/client2.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn value_of(v: i8) -> Option<Stone> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SEARCH_DEPTH`
[INFO] [stdout]  --> src/reversi/client.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const SEARCH_DEPTH: usize = 5;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_of`
[INFO] [stdout]    --> src/reversi/client.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn value_of(v: i8) -> Option<Stone> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse`
[INFO] [stdout]    --> src/reversi/client.rs:115:8
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn reverse(&self) -> Stone {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_stones`
[INFO] [stdout]    --> src/reversi/client.rs:205:8
[INFO] [stdout]     |
[INFO] [stdout] 205 |     fn get_stones(&self) -> Vec<Stone> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_score`
[INFO] [stdout]    --> src/reversi/client.rs:214:8
[INFO] [stdout]     |
[INFO] [stdout] 214 |     fn get_score(&self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `change_teban`
[INFO] [stdout]    --> src/reversi/client.rs:239:8
[INFO] [stdout]     |
[INFO] [stdout] 239 |     fn change_teban(&self) -> Ban {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `put_stone`
[INFO] [stdout]    --> src/reversi/client.rs:247:8
[INFO] [stdout]     |
[INFO] [stdout] 247 |     fn put_stone(&self, point: (usize, usize)) -> Ban {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_reverse_positions`
[INFO] [stdout]    --> src/reversi/client.rs:279:8
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn get_reverse_positions(&self, position: (usize, usize),
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `value_of`
[INFO] [stdout]    --> src/reversi/client2.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn value_of(v: i8) -> Option<Stone> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `Command { std: "docker" "inspect" "3560dd20c05b9a7e57e83988697672d1836903705c11e0bd270c372e44eb4068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3560dd20c05b9a7e57e83988697672d1836903705c11e0bd270c372e44eb4068", kill_on_drop: false }`
[INFO] [stdout] 3560dd20c05b9a7e57e83988697672d1836903705c11e0bd270c372e44eb4068