[INFO] cloning repository https://github.com/nk7540/atcoder_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nk7540/atcoder_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnk7540%2Fatcoder_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnk7540%2Fatcoder_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61abc96b351af27d9b58d5effd3eae90429bf489
[INFO] checking nk7540/atcoder_rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnk7540%2Fatcoder_rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nk7540/atcoder_rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nk7540/atcoder_rust
[INFO] finished tweaking git repo https://github.com/nk7540/atcoder_rust
[INFO] tweaked toml for git repo https://github.com/nk7540/atcoder_rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nk7540/atcoder_rust 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-derive v0.3.0
[INFO] [stderr]   Downloaded superslice v1.0.0
[INFO] [stderr]   Downloaded text_io v0.1.8
[INFO] [stderr]   Downloaded proconio-derive v0.1.9
[INFO] [stderr]   Downloaded bitset-fixed v0.1.0
[INFO] [stderr]   Downloaded ndarray v0.13.0
[INFO] [stderr]   Downloaded cli_test_dir v0.1.7
[INFO] [stderr]   Downloaded nalgebra v0.20.0
[INFO] [stderr]   Downloaded proconio v0.3.6
[INFO] [stderr]   Downloaded whiteread v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5166cf2a7b94ba3f323203170322f056760094ea4cb5626611c76515dfd8df31
[INFO] running `Command { std: "docker" "start" "-a" "5166cf2a7b94ba3f323203170322f056760094ea4cb5626611c76515dfd8df31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5166cf2a7b94ba3f323203170322f056760094ea4cb5626611c76515dfd8df31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5166cf2a7b94ba3f323203170322f056760094ea4cb5626611c76515dfd8df31", kill_on_drop: false }`
[INFO] [stdout] 5166cf2a7b94ba3f323203170322f056760094ea4cb5626611c76515dfd8df31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b34031310d15bcb45d53b1570ec8f965f28f61a3201af8a71cbace4ffa835c0
[INFO] running `Command { std: "docker" "start" "-a" "8b34031310d15bcb45d53b1570ec8f965f28f61a3201af8a71cbace4ffa835c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]    Compiling im-rc v14.3.0
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking cli_test_dir v0.1.7
[INFO] [stderr]     Checking superslice v1.0.0
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]     Checking whiteread v0.5.0
[INFO] [stderr]     Checking bitset-fixed v0.1.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking rand_hc v0.2.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking sized-chunks v0.5.3
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking nalgebra v0.20.0
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]    Compiling proconio-derive v0.1.9
[INFO] [stderr]     Checking proconio v0.3.6
[INFO] [stderr]     Checking rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/contest/arc/163/a.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |             if (is_ordered(&s[..i], &s[i..])) {
[INFO] [stdout]    |                ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -             if (is_ordered(&s[..i], &s[i..])) {
[INFO] [stdout] 15 +             if is_ordered(&s[..i], &s[i..]) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/contest/abc310/d.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `dxy` should have an upper case name
[INFO] [stdout]   --> src/contest/beginners_selection/bfs/joi2011yoe.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const dxy: [(i32, i32); 4] = [(1, 0), (0, 1), (-1, 0), (0, -1)];
[INFO] [stdout]    |       ^^^ help: convert the identifier to upper case: `DXY`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `dxy` should have an upper case name
[INFO] [stdout]   --> src/contest/beginners_selection/bfs/abc088d.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 |     const dxy: [(i32, i32); 4] = [(1, 0), (0, 1), (-1, 0), (0, -1)];
[INFO] [stdout]    |           ^^^ help: convert the identifier to upper case: `DXY`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> src/contest/abc309/d.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::VecDeque, ops::Index};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Graph`, `graph::NodeIndex`, `visit::Bfs`
[INFO] [stdout]  --> src/contest/abc309/d.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use petgraph::{graph::NodeIndex, visit::Bfs, Graph};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/contest/abc310/b.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         m: usize, // 1 <= c <= m
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]   --> src/contest/abc311/e.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         h: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/contest/abc311/e.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         w: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ab`
[INFO] [stdout]   --> src/contest/abc311/e.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         ab: [(usize, usize); n]
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ab`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/contest/beginners_selection/exhaustive/sumitb2019d.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/contest/beginners_selection/exhaustive/sumitb2019d.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         n: usize,
[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: `i`
[INFO] [stdout]   --> src/contest/beginners_selection/exhaustive/sumitb2019d.rs:53:19
[INFO] [stdout]    |
[INFO] [stdout] 53 |             .map(|i| rand::thread_rng().gen_range(0, 10).to_string())
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/contest/arc/163/a.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |             if (is_ordered(&s[..i], &s[i..])) {
[INFO] [stdout]    |                ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -             if (is_ordered(&s[..i], &s[i..])) {
[INFO] [stdout] 15 +             if is_ordered(&s[..i], &s[i..]) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/contest/beginners_selection/exhaustive/sumitb2019d.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |             cmd.output_with_stdin(format!("{} {}", n, s));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 56 |             let _ = cmd.output_with_stdin(format!("{} {}", n, s));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/contest/abc309/b.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 |     for i in (0..n - 1) {
[INFO] [stdout]    |              ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 19 -     for i in (0..n - 1) {
[INFO] [stdout] 19 +     for i in 0..n - 1 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/contest/abc311/c.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/contest/abc310/b.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         m: usize, // 1 <= c <= m
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/contest/abc310/d.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `dxy` should have an upper case name
[INFO] [stdout]   --> src/contest/beginners_selection/bfs/abc088d.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 |     const dxy: [(i32, i32); 4] = [(1, 0), (0, 1), (-1, 0), (0, -1)];
[INFO] [stdout]    |           ^^^ help: convert the identifier to upper case: `DXY`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `dxy` should have an upper case name
[INFO] [stdout]   --> src/contest/beginners_selection/bfs/joi2011yoe.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const dxy: [(i32, i32); 4] = [(1, 0), (0, 1), (-1, 0), (0, -1)];
[INFO] [stdout]    |       ^^^ help: convert the identifier to upper case: `DXY`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/contest/abc311/a.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         n: usize,
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/contest/abc311/c.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]   --> src/contest/abc311/e.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         h: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/contest/abc311/e.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         w: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ab`
[INFO] [stdout]   --> src/contest/abc311/e.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         ab: [(usize, usize); n]
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ab`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/contest/abc309/b.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 |     for i in (0..n - 1) {
[INFO] [stdout]    |              ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 19 -     for i in (0..n - 1) {
[INFO] [stdout] 19 +     for i in 0..n - 1 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proconio::input`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use proconio::input;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proconio::input`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use proconio::input;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/contest/abc311/a.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         n: usize,
[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 import: `itertools::Itertools`
[INFO] [stdout]  --> src/contest/beginners_selection/exhaustive/sumitb2019d.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> src/contest/abc309/d.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::VecDeque, ops::Index};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Graph`, `graph::NodeIndex`, `visit::Bfs`
[INFO] [stdout]  --> src/contest/abc309/d.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use petgraph::{graph::NodeIndex, visit::Bfs, Graph};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/contest/beginners_selection/exhaustive/sumitb2019d.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         n: usize,
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.69s
[INFO] running `Command { std: "docker" "inspect" "8b34031310d15bcb45d53b1570ec8f965f28f61a3201af8a71cbace4ffa835c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b34031310d15bcb45d53b1570ec8f965f28f61a3201af8a71cbace4ffa835c0", kill_on_drop: false }`
[INFO] [stdout] 8b34031310d15bcb45d53b1570ec8f965f28f61a3201af8a71cbace4ffa835c0
[INFO] checking nk7540/atcoder_rust against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnk7540%2Fatcoder_rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nk7540/atcoder_rust on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nk7540/atcoder_rust
[INFO] finished tweaking git repo https://github.com/nk7540/atcoder_rust
[INFO] tweaked toml for git repo https://github.com/nk7540/atcoder_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/nk7540/atcoder_rust 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe5e552261f35981ea789bc787101324ba20b3e71391afe04451b49cff803638
[INFO] running `Command { std: "docker" "start" "-a" "fe5e552261f35981ea789bc787101324ba20b3e71391afe04451b49cff803638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe5e552261f35981ea789bc787101324ba20b3e71391afe04451b49cff803638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe5e552261f35981ea789bc787101324ba20b3e71391afe04451b49cff803638", kill_on_drop: false }`
[INFO] [stdout] fe5e552261f35981ea789bc787101324ba20b3e71391afe04451b49cff803638
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee84be2cd68067fff3ec40ccb7cf735c9e1be061887b405e742b47bf64d9ac29
[INFO] running `Command { std: "docker" "start" "-a" "ee84be2cd68067fff3ec40ccb7cf735c9e1be061887b405e742b47bf64d9ac29", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling im-rc v14.3.0
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]     Checking cli_test_dir v0.1.7
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]     Checking ascii v1.0.0
[INFO] [stderr]     Checking superslice v1.0.0
[INFO] [stderr]     Checking text_io v0.1.8
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking whiteread v0.5.0
[INFO] [stderr]     Checking bitset-fixed v0.1.0
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking rand_hc v0.2.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking sized-chunks v0.5.3
[INFO] [stderr]     Checking nalgebra v0.20.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]    Compiling proconio-derive v0.1.9
[INFO] [stderr]     Checking proconio v0.3.6
[INFO] [stderr]     Checking rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `proconio::input`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use proconio::input;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/contest/abc309/b.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 |     for i in (0..n - 1) {
[INFO] [stdout]    |              ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 19 -     for i in (0..n - 1) {
[INFO] [stdout] 19 +     for i in 0..n - 1 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `dxy` should have an upper case name
[INFO] [stdout]   --> src/contest/beginners_selection/bfs/abc088d.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 |     const dxy: [(i32, i32); 4] = [(1, 0), (0, 1), (-1, 0), (0, -1)];
[INFO] [stdout]    |           ^^^ help: convert the identifier to upper case: `DXY`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/contest/abc311/a.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         n: usize,
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `dxy` should have an upper case name
[INFO] [stdout]   --> src/contest/beginners_selection/bfs/joi2011yoe.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const dxy: [(i32, i32); 4] = [(1, 0), (0, 1), (-1, 0), (0, -1)];
[INFO] [stdout]    |       ^^^ help: convert the identifier to upper case: `DXY`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]   --> src/contest/abc311/e.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         h: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/contest/abc311/e.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         w: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ab`
[INFO] [stdout]   --> src/contest/abc311/e.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         ab: [(usize, usize); n]
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ab`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> src/contest/abc309/d.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::VecDeque, ops::Index};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Graph`, `graph::NodeIndex`, `visit::Bfs`
[INFO] [stdout]  --> src/contest/abc309/d.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use petgraph::{graph::NodeIndex, visit::Bfs, Graph};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ops::Index`
[INFO] [stdout]  --> src/contest/abc309/d.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{collections::VecDeque, ops::Index};
[INFO] [stdout]   |                                  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Graph`, `graph::NodeIndex`, `visit::Bfs`
[INFO] [stdout]  --> src/contest/abc309/d.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use petgraph::{graph::NodeIndex, visit::Bfs, Graph};
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^  ^^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/contest/abc310/d.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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: unused variable: `m`
[INFO] [stdout]   --> src/contest/abc310/b.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         m: usize, // 1 <= c <= m
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/contest/abc311/c.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proconio::input`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use proconio::input;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/contest/abc311/c.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `dxy` should have an upper case name
[INFO] [stdout]   --> src/contest/beginners_selection/bfs/joi2011yoe.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const dxy: [(i32, i32); 4] = [(1, 0), (0, 1), (-1, 0), (0, -1)];
[INFO] [stdout]    |       ^^^ help: convert the identifier to upper case: `DXY`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/contest/abc310/b.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         m: usize, // 1 <= c <= m
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `h`
[INFO] [stdout]   --> src/contest/abc311/e.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         h: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_h`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/contest/abc311/e.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         w: usize,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ab`
[INFO] [stdout]   --> src/contest/abc311/e.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         ab: [(usize, usize); n]
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_ab`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Index`
[INFO] [stdout]  --> src/contest/abc310/d.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ops::Index;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/contest/arc/163/a.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |             if (is_ordered(&s[..i], &s[i..])) {
[INFO] [stdout]    |                ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -             if (is_ordered(&s[..i], &s[i..])) {
[INFO] [stdout] 15 +             if is_ordered(&s[..i], &s[i..]) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/contest/abc311/a.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         n: usize,
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/contest/beginners_selection/exhaustive/sumitb2019d.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `dxy` should have an upper case name
[INFO] [stdout]   --> src/contest/beginners_selection/bfs/abc088d.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 |     const dxy: [(i32, i32); 4] = [(1, 0), (0, 1), (-1, 0), (0, -1)];
[INFO] [stdout]    |           ^^^ help: convert the identifier to upper case: `DXY`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/contest/beginners_selection/exhaustive/sumitb2019d.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use itertools::Itertools;
[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/contest/beginners_selection/exhaustive/sumitb2019d.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         n: usize,
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/contest/beginners_selection/exhaustive/sumitb2019d.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         n: usize,
[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: `i`
[INFO] [stdout]   --> src/contest/beginners_selection/exhaustive/sumitb2019d.rs:53:19
[INFO] [stdout]    |
[INFO] [stdout] 53 |             .map(|i| rand::thread_rng().gen_range(0, 10).to_string())
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/contest/beginners_selection/exhaustive/sumitb2019d.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |             cmd.output_with_stdin(format!("{} {}", n, s));
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 56 |             let _ = cmd.output_with_stdin(format!("{} {}", n, s));
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/contest/arc/163/a.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 |             if (is_ordered(&s[..i], &s[i..])) {
[INFO] [stdout]    |                ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 15 -             if (is_ordered(&s[..i], &s[i..])) {
[INFO] [stdout] 15 +             if is_ordered(&s[..i], &s[i..]) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/contest/abc309/b.rs:19:14
[INFO] [stdout]    |
[INFO] [stdout] 19 |     for i in (0..n - 1) {
[INFO] [stdout]    |              ^        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 19 -     for i in (0..n - 1) {
[INFO] [stdout] 19 +     for i in 0..n - 1 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.03s
[INFO] running `Command { std: "docker" "inspect" "ee84be2cd68067fff3ec40ccb7cf735c9e1be061887b405e742b47bf64d9ac29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee84be2cd68067fff3ec40ccb7cf735c9e1be061887b405e742b47bf64d9ac29", kill_on_drop: false }`
[INFO] [stdout] ee84be2cd68067fff3ec40ccb7cf735c9e1be061887b405e742b47bf64d9ac29