[INFO] updating cached repository https://github.com/komkomh/hello_rust_world
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1ec8c1669ad4920123aa7701398507f5969f0381
[INFO] checking komkomh/hello_rust_world against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkomkomh%2Fhello_rust_world" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/komkomh/hello_rust_world on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-4/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 `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1fdbeeedf02f4ffaf622dd48b20fe361db8d5c1c6d29f225848022cb80338196
[INFO] running `"docker" "start" "-a" "1fdbeeedf02f4ffaf622dd48b20fe361db8d5c1c6d29f225848022cb80338196"`
[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] [stderr] warning: method is never used: `value_of`
[INFO] [stderr]    --> src/reversi/client2.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn value_of(v: i8) -> Option<Stone> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[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: function is never used: `get_score`
[INFO] [stderr]   --> src/reversi/hairetsu8_reverse.rs:82:4
[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: 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: 1 warning emitted
[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: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/bin/no795.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |           let $var = read_value!($next, $t);
[INFO] [stderr]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] ...
[INFO] [stderr] 55 | /     input! {
[INFO] [stderr] 56 | |         n: String,
[INFO] [stderr] 57 | |         m: String,
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]   --> src/bin/no795.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |           let $var = read_value!($next, $t);
[INFO] [stderr]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stderr] ...
[INFO] [stderr] 55 | /     input! {
[INFO] [stderr] 56 | |         n: String,
[INFO] [stderr] 57 | |         m: String,
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `borrow1`
[INFO] [stderr]   --> src/bin/borrow_sample.rs:30:4
[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:36:4
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn borrow2(vec: &Vec<i32>) {
[INFO] [stderr]    |    ^^^^^^^
[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: function is never used: `get_score`
[INFO] [stderr]   --> src/reversi/hairetsu8_reverse.rs:82:4
[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: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/bin/no795.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |           let $var = read_value!($next, $t);
[INFO] [stderr]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] ...
[INFO] [stderr] 55 | /     input! {
[INFO] [stderr] 56 | |         n: String,
[INFO] [stderr] 57 | |         m: String,
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `m`
[INFO] [stderr]   --> src/bin/no795.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |           let $var = read_value!($next, $t);
[INFO] [stderr]    |               ^^^^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stderr] ...
[INFO] [stderr] 55 | /     input! {
[INFO] [stderr] 56 | |         n: String,
[INFO] [stderr] 57 | |         m: String,
[INFO] [stderr] 58 | |     }
[INFO] [stderr]    | |_____- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[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: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `value_of`
[INFO] [stderr]    --> src/reversi/client2.rs:113:5
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn value_of(v: i8) -> Option<Stone> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `borrow1`
[INFO] [stderr]   --> src/bin/borrow_sample.rs:30:4
[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:36:4
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn borrow2(vec: &Vec<i32>) {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_score`
[INFO] [stderr]   --> src/reversi/hairetsu7_points.rs:87:4
[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: function is never used: `get_score`
[INFO] [stderr]   --> src/reversi/hairetsu7_points.rs:87:4
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.43s
[INFO] running `"docker" "inspect" "1fdbeeedf02f4ffaf622dd48b20fe361db8d5c1c6d29f225848022cb80338196"`
[INFO] running `"docker" "rm" "-f" "1fdbeeedf02f4ffaf622dd48b20fe361db8d5c1c6d29f225848022cb80338196"`
[INFO] [stdout] 1fdbeeedf02f4ffaf622dd48b20fe361db8d5c1c6d29f225848022cb80338196