[INFO] cloning repository geniousli/point24 [INFO] running `"git" "clone" "--bare" "git://github.com/geniousli/point24.git" "work/cache/sources/gh/geniousli/point24"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/geniousli/point24'... [INFO] running `"git" "clone" "work/cache/sources/gh/geniousli/point24" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/geniousli/point24"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/geniousli/point24'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/geniousli/point24" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/geniousli/point24"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/geniousli/point24'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 8d298c0afc0000fbd809a0be0da3d775c87b4716 [INFO] sha for GitHub repo geniousli/point24: 8d298c0afc0000fbd809a0be0da3d775c87b4716 [INFO] validating manifest of geniousli/point24 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of geniousli/point24 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing geniousli/point24 [INFO] finished frobbing geniousli/point24 [INFO] frobbed toml for geniousli/point24 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/geniousli/point24/Cargo.toml [INFO] started frobbing geniousli/point24 [INFO] finished frobbing geniousli/point24 [INFO] frobbed toml for geniousli/point24 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/geniousli/point24/Cargo.toml [INFO] crate geniousli/point24 already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking geniousli/point24 against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008 [INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-0/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/geniousli/point24:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] db7aefb7d0e72436d0f3cbc599686a327841d01ccbacd24048bec73422e0d5d3 [INFO] running `"docker" "start" "-a" "db7aefb7d0e72436d0f3cbc599686a327841d01ccbacd24048bec73422e0d5d3"` [INFO] [stderr] Checking point24 v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/lru.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/lru.rs:8:11 [INFO] [stderr] | [INFO] [stderr] 8 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::slice::Iter` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::slice::Iter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Enumerate` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::iter::Enumerate; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str::FromStr` [INFO] [stderr] --> src/algorithm/lru.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::str::FromStr; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/algorithm/lru.rs:8:11 [INFO] [stderr] | [INFO] [stderr] 8 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::slice::Iter` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::slice::Iter; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::ops::Range` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::ops::Range; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Enumerate` [INFO] [stderr] --> src/algorithm/permutation_sequence.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::iter::Enumerate; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Iterator` [INFO] [stderr] --> src/algorithm/lru.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::iter::Iterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pre` [INFO] [stderr] --> src/algorithm/add_two_number.rs:26:17 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_pre` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `data` [INFO] [stderr] --> src/algorithm/lru.rs:44:18 [INFO] [stderr] | [INFO] [stderr] 44 | Some(data) => {} [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_data` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut walker = &l1; [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/algorithm/add_two_number.rs:24:13 [INFO] [stderr] | [INFO] [stderr] 24 | let mut walker2 = &l2; [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/algorithm/add_two_number.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [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/algorithm/middle_number.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | let mut i_nums = nums; [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/problem/mod.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let mut iter = SelfIter { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::iter::Iterator` [INFO] [stderr] --> src/algorithm/lru.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::iter::Iterator; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pre` [INFO] [stderr] --> src/algorithm/add_two_number.rs:26:17 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_pre` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `data` [INFO] [stderr] --> src/algorithm/lru.rs:44:18 [INFO] [stderr] | [INFO] [stderr] 44 | Some(data) => {} [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_data` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/algorithm/add_two_number.rs:23:13 [INFO] [stderr] | [INFO] [stderr] 23 | let mut walker = &l1; [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/algorithm/add_two_number.rs:24:13 [INFO] [stderr] | [INFO] [stderr] 24 | let mut walker2 = &l2; [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/algorithm/add_two_number.rs:26:13 [INFO] [stderr] | [INFO] [stderr] 26 | let mut pre: i32 = 0; [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/algorithm/middle_number.rs:34:13 [INFO] [stderr] | [INFO] [stderr] 34 | let mut i_nums = nums; [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/problem/mod.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let mut iter = SelfIter { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused imports: `best_time_to_buy_and_sell_stock`, `heap`, `lru`, `middle_number`, `most_long_str`, `most_water`, `receive_water`, `search_in_rotated_sorted_array` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | best_time_to_buy_and_sell_stock, find_first_and_last_position_of_element_in_sorted_array, heap, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^ [INFO] [stderr] 4 | lru, middle_number, most_long_str, most_water, receive_water, search_in_rotated_sorted_array, [INFO] [stderr] | ^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `point24::problem` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use point24::problem; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `best_time_to_buy_and_sell_stock`, `heap`, `lru`, `middle_number`, `most_long_str`, `most_water`, `receive_water`, `search_in_rotated_sorted_array` [INFO] [stderr] --> src/main.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | best_time_to_buy_and_sell_stock, find_first_and_last_position_of_element_in_sorted_array, heap, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^ [INFO] [stderr] 4 | lru, middle_number, most_long_str, most_water, receive_water, search_in_rotated_sorted_array, [INFO] [stderr] | ^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `point24::problem` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use point24::problem; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.28s [INFO] running `"docker" "inspect" "db7aefb7d0e72436d0f3cbc599686a327841d01ccbacd24048bec73422e0d5d3"` [INFO] running `"docker" "rm" "-f" "db7aefb7d0e72436d0f3cbc599686a327841d01ccbacd24048bec73422e0d5d3"` [INFO] [stdout] db7aefb7d0e72436d0f3cbc599686a327841d01ccbacd24048bec73422e0d5d3