[INFO] cloning repository https://github.com/worldmaker18349276/leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/worldmaker18349276/leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fworldmaker18349276%2Fleetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fworldmaker18349276%2Fleetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39ffb7e12bcf26f775bb0b5073ead1cbeee93416
[INFO] building worldmaker18349276/leetcode against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fworldmaker18349276%2Fleetcode" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/worldmaker18349276/leetcode on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/worldmaker18349276/leetcode
[INFO] finished tweaking git repo https://github.com/worldmaker18349276/leetcode
[INFO] tweaked toml for git repo https://github.com/worldmaker18349276/leetcode written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/worldmaker18349276/leetcode 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2a6c791b7467dda33686d990281f9b2278564d8456ec1bfc457bc67582b09f1
[INFO] running `Command { std: "docker" "start" "-a" "f2a6c791b7467dda33686d990281f9b2278564d8456ec1bfc457bc67582b09f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2a6c791b7467dda33686d990281f9b2278564d8456ec1bfc457bc67582b09f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2a6c791b7467dda33686d990281f9b2278564d8456ec1bfc457bc67582b09f1", kill_on_drop: false }`
[INFO] [stdout] f2a6c791b7467dda33686d990281f9b2278564d8456ec1bfc457bc67582b09f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31177430eae5ec521f9d3d7617fa56dcf2123636a9b1e86c21a7a0b1a814ed4a
[INFO] running `Command { std: "docker" "start" "-a" "31177430eae5ec521f9d3d7617fa56dcf2123636a9b1e86c21a7a0b1a814ed4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::slice::SliceIndex`
[INFO] [stdout]  --> src/solutions/problem87.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::slice::SliceIndex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `top_value` is never read
[INFO] [stdout]   --> src/solutions/problem33.rs:45:17
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 top_value = mid_value;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem1.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionIter` is never constructed
[INFO] [stdout]   --> src/solutions/problem1.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct SolutionIter;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionFast` is never constructed
[INFO] [stdout]   --> src/solutions/problem1.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | struct SolutionFast;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionLoop` is never constructed
[INFO] [stdout]   --> src/solutions/problem2.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 | struct SolutionLoop;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem3.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionIter` is never constructed
[INFO] [stdout]   --> src/solutions/problem3.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | struct SolutionIter;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem4.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionIndex` is never constructed
[INFO] [stdout]   --> src/solutions/problem4.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct SolutionIndex;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem5.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionIter` is never constructed
[INFO] [stdout]   --> src/solutions/problem5.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct SolutionIter;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ManacherAlgorithm` is never constructed
[INFO] [stdout]   --> src/solutions/problem5.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | struct ManacherAlgorithm;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem6.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionIter` is never constructed
[INFO] [stdout]   --> src/solutions/problem6.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct SolutionIter;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem7.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem8.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem9.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem10.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionDP` is never constructed
[INFO] [stdout]   --> src/solutions/problem10.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | struct SolutionDP;
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem11.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem12.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem13.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem14.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem15.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem16.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem17.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem18.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem19.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem20.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem22.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem26.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem27.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem28.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem29.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionOverpower` is never constructed
[INFO] [stdout]   --> src/solutions/problem30.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct SolutionOverpower;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem30.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem31.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem32.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem33.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem34.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem35.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem36.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem37.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem38.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem39.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem40.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem41.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem42.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionFaster` is never constructed
[INFO] [stdout]   --> src/solutions/problem42.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct SolutionFaster;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem43.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem44.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem45.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem46.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem47.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem48.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionFast` is never constructed
[INFO] [stdout]   --> src/solutions/problem48.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct SolutionFast;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem49.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionHashMap` is never constructed
[INFO] [stdout]   --> src/solutions/problem49.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | struct SolutionHashMap;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionLoop` is never constructed
[INFO] [stdout]   --> src/solutions/problem50.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct SolutionLoop;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem51.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem52.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem53.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionDAC` is never constructed
[INFO] [stdout]   --> src/solutions/problem53.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | struct SolutionDAC;
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem54.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem55.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem56.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem57.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem58.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionOneLiner` is never constructed
[INFO] [stdout]   --> src/solutions/problem58.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | struct SolutionOneLiner;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem59.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem60.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionCalc` is never constructed
[INFO] [stdout]   --> src/solutions/problem60.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct SolutionCalc;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/solutions/problem61.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl ListNode {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 13 |     #[inline]
[INFO] [stdout] 14 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem61.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem62.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem63.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem64.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem65.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem66.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem67.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem68.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem69.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem70.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem71.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem72.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem73.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionConst` is never constructed
[INFO] [stdout]   --> src/solutions/problem73.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct SolutionConst;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem74.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem75.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem76.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem77.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem78.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem79.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem80.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem81.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem82.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem83.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionTailCall` is never constructed
[INFO] [stdout]   --> src/solutions/problem83.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct SolutionTailCall;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SolutionLoop` is never constructed
[INFO] [stdout]   --> src/solutions/problem83.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | struct SolutionLoop;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem84.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem85.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]   --> src/solutions/problem86.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Solution;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem87.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> src/solutions/problem88.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
[INFO] [stdout]   --> src/solutions/problem48.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 36 |                     let a = a as *mut i32;
[INFO] [stdout]    |                             ------------- casting happened here
[INFO] [stdout] ...
[INFO] [stdout] 41 |                     *a = *b;
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]    = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
[INFO] [stdout]   --> src/solutions/problem48.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 37 |                     let b = b as *mut i32;
[INFO] [stdout]    |                             ------------- casting happened here
[INFO] [stdout] ...
[INFO] [stdout] 42 |                     *b = *c;
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
[INFO] [stdout]   --> src/solutions/problem48.rs:43:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |                     let c = c as *mut i32;
[INFO] [stdout]    |                             ------------- casting happened here
[INFO] [stdout] ...
[INFO] [stdout] 43 |                     *c = *d;
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: assigning to `&T` is undefined behavior, consider using an `UnsafeCell`
[INFO] [stdout]   --> src/solutions/problem48.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 39 |                     let d = d as *mut i32;
[INFO] [stdout]    |                             ------------- casting happened here
[INFO] [stdout] ...
[INFO] [stdout] 44 |                     *d = temp;
[INFO] [stdout]    |                     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode` (bin "leetcode") due to 4 previous errors; 105 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "31177430eae5ec521f9d3d7617fa56dcf2123636a9b1e86c21a7a0b1a814ed4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31177430eae5ec521f9d3d7617fa56dcf2123636a9b1e86c21a7a0b1a814ed4a", kill_on_drop: false }`
[INFO] [stdout] 31177430eae5ec521f9d3d7617fa56dcf2123636a9b1e86c21a7a0b1a814ed4a