[INFO] cloning repository komkomh/hello_rust_world
[INFO] running `"git" "clone" "--bare" "git://github.com/komkomh/hello_rust_world.git" "work/cache/sources/gh/komkomh/hello_rust_world"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/komkomh/hello_rust_world'...
[INFO] running `"git" "clone" "work/cache/sources/gh/komkomh/hello_rust_world" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/komkomh/hello_rust_world"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/komkomh/hello_rust_world'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/komkomh/hello_rust_world" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/komkomh/hello_rust_world"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/komkomh/hello_rust_world'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ab8e91db689437adc7038c881196c688356aad14
[INFO] sha for GitHub repo komkomh/hello_rust_world: ab8e91db689437adc7038c881196c688356aad14
[INFO] validating manifest of komkomh/hello_rust_world on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of komkomh/hello_rust_world on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing komkomh/hello_rust_world
[INFO] finished frobbing komkomh/hello_rust_world
[INFO] frobbed toml for komkomh/hello_rust_world written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/komkomh/hello_rust_world/Cargo.toml
[INFO] started frobbing komkomh/hello_rust_world
[INFO] finished frobbing komkomh/hello_rust_world
[INFO] frobbed toml for komkomh/hello_rust_world written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/komkomh/hello_rust_world/Cargo.toml
[INFO] crate komkomh/hello_rust_world already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.4.4
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking komkomh/hello_rust_world against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-5/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/komkomh/hello_rust_world:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f718b69f89ab7842df008853bfb0c12ab3e29111b1c8264e50ff5d6c3d1a49a1
[INFO] running `"docker" "start" "-a" "f718b69f89ab7842df008853bfb0c12ab3e29111b1c8264e50ff5d6c3d1a49a1"`
[INFO] [stderr]     Checking rand v0.4.4
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking hello_rust_world v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `borrow1`
[INFO] [stderr]   --> src/bin/borrow_sample.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn borrow1(vec: Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `borrow2`
[INFO] [stderr]   --> src/bin/borrow_sample.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn borrow2(vec: &Vec<i32>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_score`
[INFO] [stderr]   --> src/reversi/hairetsu8_reverse.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn get_score(ban: [[i8; BAN_SIZE]; BAN_SIZE], stone_color: i8) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/reversi/client.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/reversi/client.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut ban = create_ban();
[INFO] [stderr]   |         ----^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SEARCH_DEPTH`
[INFO] [stderr]  --> src/reversi/client.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const SEARCH_DEPTH: usize = 5;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_of`
[INFO] [stderr]    --> src/reversi/client.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn value_of(v: i8) -> Option<Stone> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reverse`
[INFO] [stderr]    --> src/reversi/client.rs:115:5
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn reverse(&self) -> Stone {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_stones`
[INFO] [stderr]    --> src/reversi/client.rs:205:5
[INFO] [stderr]     |
[INFO] [stderr] 205 |     fn get_stones(&self) -> Vec<Stone> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_score`
[INFO] [stderr]    --> src/reversi/client.rs:214:5
[INFO] [stderr]     |
[INFO] [stderr] 214 |     fn get_score(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `change_teban`
[INFO] [stderr]    --> src/reversi/client.rs:239:5
[INFO] [stderr]     |
[INFO] [stderr] 239 |     fn change_teban(&self) -> Ban {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `put_stone`
[INFO] [stderr]    --> src/reversi/client.rs:247:5
[INFO] [stderr]     |
[INFO] [stderr] 247 |     fn put_stone(&self, point: (usize, usize)) -> Ban {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_reverse_positions`
[INFO] [stderr]    --> src/reversi/client.rs:279:5
[INFO] [stderr]     |
[INFO] [stderr] 279 | /     fn get_reverse_positions(&self, position: (usize, usize),
[INFO] [stderr] 280 | |                              direction: (i8, i8)) -> Option<Vec<(usize, usize)>> {
[INFO] [stderr] 281 | |         // 調査点を生成する
[INFO] [stderr] 282 | |         let y = (position.0 as i8 + direction.0) as usize;
[INFO] [stderr] ...   |
[INFO] [stderr] 304 | |         })
[INFO] [stderr] 305 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_score`
[INFO] [stderr]   --> src/reversi/hairetsu8_reverse.rs:82:1
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn get_score(ban: [[i8; BAN_SIZE]; BAN_SIZE], stone_color: i8) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_score`
[INFO] [stderr]   --> src/reversi/hairetsu7_points.rs:87:1
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn get_score(ban: [[i8; BAN_SIZE]; BAN_SIZE], stone_color: i8) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/reversi/client.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/reversi/client.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut ban = create_ban();
[INFO] [stderr]   |         ----^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SEARCH_DEPTH`
[INFO] [stderr]  --> src/reversi/client.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | const SEARCH_DEPTH: usize = 5;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_of`
[INFO] [stderr]    --> src/reversi/client.rs:107:5
[INFO] [stderr]     |
[INFO] [stderr] 107 |     fn value_of(v: i8) -> Option<Stone> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reverse`
[INFO] [stderr]    --> src/reversi/client.rs:115:5
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn reverse(&self) -> Stone {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_stones`
[INFO] [stderr]    --> src/reversi/client.rs:205:5
[INFO] [stderr]     |
[INFO] [stderr] 205 |     fn get_stones(&self) -> Vec<Stone> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_score`
[INFO] [stderr]    --> src/reversi/client.rs:214:5
[INFO] [stderr]     |
[INFO] [stderr] 214 |     fn get_score(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `change_teban`
[INFO] [stderr]    --> src/reversi/client.rs:239:5
[INFO] [stderr]     |
[INFO] [stderr] 239 |     fn change_teban(&self) -> Ban {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `put_stone`
[INFO] [stderr]    --> src/reversi/client.rs:247:5
[INFO] [stderr]     |
[INFO] [stderr] 247 |     fn put_stone(&self, point: (usize, usize)) -> Ban {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_reverse_positions`
[INFO] [stderr]    --> src/reversi/client.rs:279:5
[INFO] [stderr]     |
[INFO] [stderr] 279 | /     fn get_reverse_positions(&self, position: (usize, usize),
[INFO] [stderr] 280 | |                              direction: (i8, i8)) -> Option<Vec<(usize, usize)>> {
[INFO] [stderr] 281 | |         // 調査点を生成する
[INFO] [stderr] 282 | |         let y = (position.0 as i8 + direction.0) as usize;
[INFO] [stderr] ...   |
[INFO] [stderr] 304 | |         })
[INFO] [stderr] 305 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `borrow1`
[INFO] [stderr]   --> src/bin/borrow_sample.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn borrow1(vec: Vec<i32>) -> Vec<i32> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `borrow2`
[INFO] [stderr]   --> src/bin/borrow_sample.rs:36:1
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn borrow2(vec: &Vec<i32>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/bin/no795.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         n: String,
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]   --> src/bin/no795.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         m: String,
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/bin/no795.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         n: String,
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]   --> src/bin/no795.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         m: String,
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_m`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_score`
[INFO] [stderr]   --> src/reversi/hairetsu7_points.rs:87:1
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn get_score(ban: [[i8; BAN_SIZE]; BAN_SIZE], stone_color: i8) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.38s
[INFO] running `"docker" "inspect" "f718b69f89ab7842df008853bfb0c12ab3e29111b1c8264e50ff5d6c3d1a49a1"`
[INFO] running `"docker" "rm" "-f" "f718b69f89ab7842df008853bfb0c12ab3e29111b1c8264e50ff5d6c3d1a49a1"`
[INFO] [stdout] f718b69f89ab7842df008853bfb0c12ab3e29111b1c8264e50ff5d6c3d1a49a1