[INFO] updating cached repository https://github.com/minaminao/algo-rs [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] 02d464686a9039b6fe21a18ab5a616641a622d17 [INFO] testing minaminao/algo-rs against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fminaminao%2Falgo-rs" "/workspace/builds/worker-8/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/minaminao/algo-rs on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/minaminao/algo-rs [INFO] finished tweaking git repo https://github.com/minaminao/algo-rs [INFO] tweaked toml for git repo https://github.com/minaminao/algo-rs written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/minaminao/algo-rs already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d56fc0319aca2ad93c3ee4b042cc8615b8e13cf6036985d7c8bc9d181d1510fb [INFO] running `"docker" "start" "-a" "d56fc0319aca2ad93c3ee4b042cc8615b8e13cf6036985d7c8bc9d181d1510fb"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling algo v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(mut n: usize) -> BinaryIndexedTree { [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: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:21:23 [INFO] [stderr] | [INFO] [stderr] 21 | fn add(&mut self, mut i: usize, x: isize) { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:28:23 [INFO] [stderr] | [INFO] [stderr] 28 | fn sum(&mut self, mut i: usize) -> isize { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `BinaryIndexedTree` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | struct BinaryIndexedTree { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(mut n: usize) -> BinaryIndexedTree { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `add` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | fn add(&mut self, mut i: usize, x: isize) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sum` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:28:8 [INFO] [stderr] | [INFO] [stderr] 28 | fn sum(&mut self, mut i: usize) -> isize { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sum2` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:37:8 [INFO] [stderr] | [INFO] [stderr] 37 | fn sum2(&mut self, l: usize, r: usize) -> isize { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `size` [INFO] [stderr] --> src/data_structures/union_find.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | size: usize, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/data_structures/union_find.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | fn new(n: usize) -> UnionFind { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `unite` [INFO] [stderr] --> src/data_structures/union_find.rs:15:8 [INFO] [stderr] | [INFO] [stderr] 15 | fn unite(&mut self, mut x: usize, mut y: usize) -> bool { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `same` [INFO] [stderr] --> src/data_structures/union_find.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 30 | fn same(&mut self, x: usize, y: usize) -> bool { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gcd` [INFO] [stderr] --> src/number_theory/gcd_lcm.rs:1:4 [INFO] [stderr] | [INFO] [stderr] 1 | fn gcd(x: u64, y: u64) -> u64 { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.47s [INFO] running `"docker" "inspect" "d56fc0319aca2ad93c3ee4b042cc8615b8e13cf6036985d7c8bc9d181d1510fb"` [INFO] running `"docker" "rm" "-f" "d56fc0319aca2ad93c3ee4b042cc8615b8e13cf6036985d7c8bc9d181d1510fb"` [INFO] [stdout] d56fc0319aca2ad93c3ee4b042cc8615b8e13cf6036985d7c8bc9d181d1510fb [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] aee5c815f692daba922d0a3b7a6aebd29755106912e8b7ccf6be0955161a2157 [INFO] running `"docker" "start" "-a" "aee5c815f692daba922d0a3b7a6aebd29755106912e8b7ccf6be0955161a2157"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling algo v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(mut n: usize) -> BinaryIndexedTree { [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: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:21:23 [INFO] [stderr] | [INFO] [stderr] 21 | fn add(&mut self, mut i: usize, x: isize) { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:28:23 [INFO] [stderr] | [INFO] [stderr] 28 | fn sum(&mut self, mut i: usize) -> isize { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `BinaryIndexedTree` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | struct BinaryIndexedTree { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(mut n: usize) -> BinaryIndexedTree { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `add` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | fn add(&mut self, mut i: usize, x: isize) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sum` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:28:8 [INFO] [stderr] | [INFO] [stderr] 28 | fn sum(&mut self, mut i: usize) -> isize { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sum2` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:37:8 [INFO] [stderr] | [INFO] [stderr] 37 | fn sum2(&mut self, l: usize, r: usize) -> isize { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `size` [INFO] [stderr] --> src/data_structures/union_find.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | size: usize, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/data_structures/union_find.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | fn new(n: usize) -> UnionFind { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `unite` [INFO] [stderr] --> src/data_structures/union_find.rs:15:8 [INFO] [stderr] | [INFO] [stderr] 15 | fn unite(&mut self, mut x: usize, mut y: usize) -> bool { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `same` [INFO] [stderr] --> src/data_structures/union_find.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 30 | fn same(&mut self, x: usize, y: usize) -> bool { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gcd` [INFO] [stderr] --> src/number_theory/gcd_lcm.rs:1:4 [INFO] [stderr] | [INFO] [stderr] 1 | fn gcd(x: u64, y: u64) -> u64 { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(mut n: usize) -> BinaryIndexedTree { [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: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:21:23 [INFO] [stderr] | [INFO] [stderr] 21 | fn add(&mut self, mut i: usize, x: isize) { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:28:23 [INFO] [stderr] | [INFO] [stderr] 28 | fn sum(&mut self, mut i: usize) -> isize { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `BinaryIndexedTree` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | struct BinaryIndexedTree { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(mut n: usize) -> BinaryIndexedTree { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `add` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | fn add(&mut self, mut i: usize, x: isize) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sum` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:28:8 [INFO] [stderr] | [INFO] [stderr] 28 | fn sum(&mut self, mut i: usize) -> isize { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sum2` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:37:8 [INFO] [stderr] | [INFO] [stderr] 37 | fn sum2(&mut self, l: usize, r: usize) -> isize { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `size` [INFO] [stderr] --> src/data_structures/union_find.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | size: usize, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/data_structures/union_find.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | fn new(n: usize) -> UnionFind { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `unite` [INFO] [stderr] --> src/data_structures/union_find.rs:15:8 [INFO] [stderr] | [INFO] [stderr] 15 | fn unite(&mut self, mut x: usize, mut y: usize) -> bool { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `same` [INFO] [stderr] --> src/data_structures/union_find.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 30 | fn same(&mut self, x: usize, y: usize) -> bool { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: 12 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.74s [INFO] running `"docker" "inspect" "aee5c815f692daba922d0a3b7a6aebd29755106912e8b7ccf6be0955161a2157"` [INFO] running `"docker" "rm" "-f" "aee5c815f692daba922d0a3b7a6aebd29755106912e8b7ccf6be0955161a2157"` [INFO] [stdout] aee5c815f692daba922d0a3b7a6aebd29755106912e8b7ccf6be0955161a2157 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stdout] 4bd557ec85f5ad86bced9a222e31151eba83dd976b23917e1a6ea22bbf62f42a [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "4bd557ec85f5ad86bced9a222e31151eba83dd976b23917e1a6ea22bbf62f42a"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(mut n: usize) -> BinaryIndexedTree { [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: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:21:23 [INFO] [stderr] | [INFO] [stderr] 21 | fn add(&mut self, mut i: usize, x: isize) { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:28:23 [INFO] [stderr] | [INFO] [stderr] 28 | fn sum(&mut self, mut i: usize) -> isize { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `BinaryIndexedTree` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | struct BinaryIndexedTree { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(mut n: usize) -> BinaryIndexedTree { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `add` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | fn add(&mut self, mut i: usize, x: isize) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sum` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:28:8 [INFO] [stderr] | [INFO] [stderr] 28 | fn sum(&mut self, mut i: usize) -> isize { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sum2` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:37:8 [INFO] [stderr] | [INFO] [stderr] 37 | fn sum2(&mut self, l: usize, r: usize) -> isize { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `size` [INFO] [stderr] --> src/data_structures/union_find.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | size: usize, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/data_structures/union_find.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | fn new(n: usize) -> UnionFind { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `unite` [INFO] [stderr] --> src/data_structures/union_find.rs:15:8 [INFO] [stderr] | [INFO] [stderr] 15 | fn unite(&mut self, mut x: usize, mut y: usize) -> bool { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `same` [INFO] [stderr] --> src/data_structures/union_find.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 30 | fn same(&mut self, x: usize, y: usize) -> bool { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gcd` [INFO] [stderr] --> src/number_theory/gcd_lcm.rs:1:4 [INFO] [stderr] | [INFO] [stderr] 1 | fn gcd(x: u64, y: u64) -> u64 { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: 13 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(mut n: usize) -> BinaryIndexedTree { [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: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:21:23 [INFO] [stderr] | [INFO] [stderr] 21 | fn add(&mut self, mut i: usize, x: isize) { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:28:23 [INFO] [stderr] | [INFO] [stderr] 28 | fn sum(&mut self, mut i: usize) -> isize { [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `BinaryIndexedTree` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:2:8 [INFO] [stderr] | [INFO] [stderr] 2 | struct BinaryIndexedTree { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:9:8 [INFO] [stderr] | [INFO] [stderr] 9 | fn new(mut n: usize) -> BinaryIndexedTree { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `add` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | fn add(&mut self, mut i: usize, x: isize) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sum` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:28:8 [INFO] [stderr] | [INFO] [stderr] 28 | fn sum(&mut self, mut i: usize) -> isize { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `sum2` [INFO] [stderr] --> src/data_structures/binary_indexed_tree.rs:37:8 [INFO] [stderr] | [INFO] [stderr] 37 | fn sum2(&mut self, l: usize, r: usize) -> isize { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `size` [INFO] [stderr] --> src/data_structures/union_find.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | size: usize, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/data_structures/union_find.rs:8:8 [INFO] [stderr] | [INFO] [stderr] 8 | fn new(n: usize) -> UnionFind { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `unite` [INFO] [stderr] --> src/data_structures/union_find.rs:15:8 [INFO] [stderr] | [INFO] [stderr] 15 | fn unite(&mut self, mut x: usize, mut y: usize) -> bool { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `same` [INFO] [stderr] --> src/data_structures/union_find.rs:30:8 [INFO] [stderr] | [INFO] [stderr] 30 | fn same(&mut self, x: usize, y: usize) -> bool { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: 12 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/algo-a1f21c200276026c [INFO] [stderr] Doc-tests algo [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test number_theory::gcd_lcm::test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "4bd557ec85f5ad86bced9a222e31151eba83dd976b23917e1a6ea22bbf62f42a"` [INFO] running `"docker" "rm" "-f" "4bd557ec85f5ad86bced9a222e31151eba83dd976b23917e1a6ea22bbf62f42a"` [INFO] [stdout] 4bd557ec85f5ad86bced9a222e31151eba83dd976b23917e1a6ea22bbf62f42a