[INFO] cloning repository https://github.com/Shift0117/shift-lib-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shift0117/shift-lib-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShift0117%2Fshift-lib-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShift0117%2Fshift-lib-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ecbbb02ff09e0caaa94b1cac1554747f647b56cd
[INFO] checking Shift0117/shift-lib-rs against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShift0117%2Fshift-lib-rs" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Shift0117/shift-lib-rs on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Shift0117/shift-lib-rs
[INFO] finished tweaking git repo https://github.com/Shift0117/shift-lib-rs
[INFO] tweaked toml for git repo https://github.com/Shift0117/shift-lib-rs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Shift0117/shift-lib-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8452e9a1af630a42d10e09548c37f29bd294dc47d07577d22e1f07c1130704b2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8452e9a1af630a42d10e09548c37f29bd294dc47d07577d22e1f07c1130704b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8452e9a1af630a42d10e09548c37f29bd294dc47d07577d22e1f07c1130704b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8452e9a1af630a42d10e09548c37f29bd294dc47d07577d22e1f07c1130704b2", kill_on_drop: false }`
[INFO] [stdout] 8452e9a1af630a42d10e09548c37f29bd294dc47d07577d22e1f07c1130704b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4d537e72f4939ab3918d41e962edf347bb5cba69c02498049c73f2532c721fc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b4d537e72f4939ab3918d41e962edf347bb5cba69c02498049c73f2532c721fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking ac-library-rs-parted-internal-math v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking ac-library-rs-parted-internal-type-traits v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking ac-library-rs-parted-internal-scc v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking ac-library-rs-parted-internal-bit v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling ndarray v0.13.0
[INFO] [stderr]     Checking ac-library-rs-parted-internal-queue v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking shift-lib-rs-range-set v0.1.0 (/opt/rustwide/workdir/data_structure/range_set)
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking ac-library-rs-parted-fenwicktree v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking ac-library-rs-parted-dsu v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking ac-library-rs-parted-string v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking bitset-fixed v0.1.0
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[INFO] [stderr]    Compiling num-traits v0.2.11
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[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
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[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking ac-library-rs-parted-modint v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
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[INFO] [stderr]     Checking ac-library-rs-parted-twosat v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking ac-library-rs-parted-scc v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking ac-library-rs-parted-segtree v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking ac-library-rs-parted-mincostflow v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking ac-library-rs-parted-maxflow v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]    Compiling im-rc v14.3.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking ac-library-rs-parted-lazysegtree v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking ac-library-rs-parted-convolution v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking ac-library-rs-parted v0.1.0 (https://github.com/qryxip/ac-library-rs-parted#77261929)
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking rand_hc v0.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking shift-lib-rs-general v0.1.0 (/opt/rustwide/workdir/general)
[INFO] [stderr]     Checking shift-lib-rs-iter-ext v0.1.0 (/opt/rustwide/workdir/iter_ext)
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking shift-lib-rs-graph v0.1.0 (/opt/rustwide/workdir/graph)
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stdout] warning: unused import: `Sub`
[INFO] [stdout]  --> graph/src/lib.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 |         ops::{Add, Sub},
[INFO] [stdout]   |                    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> graph/src/lib.rs:158:5
[INFO] [stdout]     |
[INFO] [stdout] 158 | /     macro_rules! from_adj_matrix {
[INFO] [stdout] 159 | |         ($adj:expr,$cost_type:ty) => {
[INFO] [stdout] 160 | |             GeneralGraph {
[INFO] [stdout] 161 | |                 next: &mut (move |idx: usize, cost: $cost_type| -> Vec<_> {
[INFO] [stdout] ...   |
[INFO] [stdout] 170 | |         };
[INFO] [stdout] 171 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> graph/src/lib.rs:173:5
[INFO] [stdout]     |
[INFO] [stdout] 173 | /     macro_rules! from_edges {
[INFO] [stdout] 174 | |         ($edges:expr) => {{
[INFO] [stdout] 175 | |             GeneralGraph {
[INFO] [stdout] 176 | |                 next : &mut |idx: usize, _: ()| -> Vec<_> {
[INFO] [stdout] ...   |
[INFO] [stdout] 180 | |         }};
[INFO] [stdout] 181 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sub`
[INFO] [stdout]  --> graph/src/lib.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 |         ops::{Add, Sub},
[INFO] [stdout]   |                    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> graph/src/lib.rs:158:5
[INFO] [stdout]     |
[INFO] [stdout] 158 | /     macro_rules! from_adj_matrix {
[INFO] [stdout] 159 | |         ($adj:expr,$cost_type:ty) => {
[INFO] [stdout] 160 | |             GeneralGraph {
[INFO] [stdout] 161 | |                 next: &mut (move |idx: usize, cost: $cost_type| -> Vec<_> {
[INFO] [stdout] ...   |
[INFO] [stdout] 170 | |         };
[INFO] [stdout] 171 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> general/src/lib.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |     let v = [5, 2, 1, 4, 9];
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking shift-lib-rs-math v0.1.0 (/opt/rustwide/workdir/math)
[INFO] [stdout] warning: unused import: `num_traits`
[INFO] [stdout]  --> math/src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use num_traits;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num_traits`
[INFO] [stdout]  --> math/src/lib.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use num_traits;
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Fp`
[INFO] [stdout]  --> math/src/fp.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub struct Fp<M> {
[INFO] [stdout]   |                ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Fp`
[INFO] [stdout]  --> math/src/fp.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub struct Fp<M> {
[INFO] [stdout]   |                ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking shift-lib-rs-traits v0.1.0 (/opt/rustwide/workdir/traits)
[INFO] [stdout] warning: unused import: `AbstractMonoid`
[INFO] [stdout]  --> traits/src/lib.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |         AbstractMagma, AbstractMonoid, AbstractSemigroup, Additive, Identity, Operator,
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> traits/src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     macro_rules! impl_magma(
[INFO] [stdout] 26 | |         ($M:ty; $op: ident; $($T:ty),* $(,)*) => {
[INFO] [stdout] 27 | |             $(impl AbstractMagma<$M> for $T {
[INFO] [stdout] 28 | |                 #[inline]
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |             })*
[INFO] [stdout] 33 | |         });
[INFO] [stdout]    | |___________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> traits/src/lib.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 | /     macro_rules! impl_ident {
[INFO] [stdout] 144 | |     ($M:ty; $V:expr; $($T:ty),* $(,)*) => {
[INFO] [stdout] 145 | |         $(impl Identity<$M> for $T { #[inline] fn identity() -> $T {$V} })+
[INFO] [stdout] 146 | |     }
[INFO] [stdout] 147 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AbstractMonoid`
[INFO] [stdout]  --> traits/src/lib.rs:5:24
[INFO] [stdout]   |
[INFO] [stdout] 5 |         AbstractMagma, AbstractMonoid, AbstractSemigroup, Additive, Identity, Operator,
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> traits/src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     macro_rules! impl_magma(
[INFO] [stdout] 26 | |         ($M:ty; $op: ident; $($T:ty),* $(,)*) => {
[INFO] [stdout] 27 | |             $(impl AbstractMagma<$M> for $T {
[INFO] [stdout] 28 | |                 #[inline]
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | |             })*
[INFO] [stdout] 33 | |         });
[INFO] [stdout]    | |___________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> traits/src/lib.rs:143:5
[INFO] [stdout]     |
[INFO] [stdout] 143 | /     macro_rules! impl_ident {
[INFO] [stdout] 144 | |     ($M:ty; $V:expr; $($T:ty),* $(,)*) => {
[INFO] [stdout] 145 | |         $(impl Identity<$M> for $T { #[inline] fn identity() -> $T {$V} })+
[INFO] [stdout] 146 | |     }
[INFO] [stdout] 147 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> traits/src/lib.rs:199:9
[INFO] [stdout]     |
[INFO] [stdout] 199 |     let x = Wrap(1);
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking shift-lib-rs-disjoint-sparse-table v0.1.0 (/opt/rustwide/workdir/data_structure/disjoint_sparse_table)
[INFO] [stderr]     Checking shift-lib-rs-data-structure v0.1.0 (/opt/rustwide/workdir/data_structure)
[INFO] [stderr]     Checking nalgebra v0.20.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking sized-chunks v0.5.3
[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_lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `proconio::input`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | 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: `alga::general::AbstractSemigroup`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use alga::general::AbstractSemigroup;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AbstractMagma`, `Operator`
[INFO] [stdout]  --> src/main.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use alga::general::{AbstractMagma, Additive, Operator};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `__shift_traits::Min`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use __shift_traits::Min;    
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `__shift_general::max_assign`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use __shift_general::max_assign;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `__shift_iter_ext::IteratorExt`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use __shift_iter_ext::IteratorExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `acl_modint::ModInt1000000007`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use acl_modint::ModInt1000000007;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `acl_segtree::Monoid`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use acl_segtree::Monoid;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `proconio::input`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | 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: `alga::general::AbstractSemigroup`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use alga::general::AbstractSemigroup;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AbstractMagma`, `Operator`
[INFO] [stdout]  --> src/main.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use alga::general::{AbstractMagma, Additive, Operator};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `__shift_traits::Min`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use __shift_traits::Min;    
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `__shift_general::max_assign`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use __shift_general::max_assign;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `__shift_iter_ext::IteratorExt`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use __shift_iter_ext::IteratorExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `acl_modint::ModInt1000000007`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use acl_modint::ModInt1000000007;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `acl_segtree::Monoid`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use acl_segtree::Monoid;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 11s
[INFO] running `Command { std: "docker" "inspect" "b4d537e72f4939ab3918d41e962edf347bb5cba69c02498049c73f2532c721fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4d537e72f4939ab3918d41e962edf347bb5cba69c02498049c73f2532c721fc", kill_on_drop: false }`
[INFO] [stdout] b4d537e72f4939ab3918d41e962edf347bb5cba69c02498049c73f2532c721fc