[INFO] updating cached repository https://github.com/LeeReindeer/LeetCode-Rust [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] 877946aa6b7a35f17414fa0580543f730c281f66 [INFO] testing LeeReindeer/LeetCode-Rust against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLeeReindeer%2FLeetCode-Rust" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LeeReindeer/LeetCode-Rust 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/LeeReindeer/LeetCode-Rust [INFO] finished tweaking git repo https://github.com/LeeReindeer/LeetCode-Rust [INFO] tweaked toml for git repo https://github.com/LeeReindeer/LeetCode-Rust written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/LeeReindeer/LeetCode-Rust 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 62be79bce259f0b44277965e569847a946a74f70d80d5bb773f8cbb0acb6d7c3 [INFO] running `"docker" "start" "-a" "62be79bce259f0b44277965e569847a946a74f70d80d5bb773f8cbb0acb6d7c3"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling smallvec v1.2.0 [INFO] [stderr] Compiling matches v0.1.8 [INFO] [stderr] Compiling itoa v0.4.5 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling openssl-probe v0.1.2 [INFO] [stderr] Compiling percent-encoding v2.1.0 [INFO] [stderr] Compiling percent-encoding v1.0.1 [INFO] [stderr] Compiling proc-macro-nested v0.1.4 [INFO] [stderr] Compiling openssl v0.10.28 [INFO] [stderr] Compiling failure_derive v0.1.7 [INFO] [stderr] Compiling httparse v1.3.4 [INFO] [stderr] Compiling crc32fast v1.2.0 [INFO] [stderr] Compiling futures-core v0.3.4 [INFO] [stderr] Compiling curl v0.4.28 [INFO] [stderr] Compiling futures-sink v0.3.4 [INFO] [stderr] Compiling try-lock v0.2.2 [INFO] [stderr] Compiling dtoa v0.4.5 [INFO] [stderr] Compiling native-tls v0.2.4 [INFO] [stderr] Compiling isahc v0.7.6 [INFO] [stderr] Compiling adler32 v1.0.4 [INFO] [stderr] Compiling mime v0.3.16 [INFO] [stderr] Compiling futures-task v0.3.4 [INFO] [stderr] Compiling futures-io v0.3.4 [INFO] [stderr] Compiling encoding_rs v0.8.22 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling libnghttp2-sys v0.1.3 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling indexmap v1.3.2 [INFO] [stderr] Compiling backtrace-sys v0.1.35 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling try_from v0.3.2 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Compiling error-chain v0.12.2 [INFO] [stderr] Compiling tokio-sync v0.1.8 [INFO] [stderr] Compiling unicode-bidi v0.3.4 [INFO] [stderr] Compiling lock_api v0.3.3 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling unicode-normalization v0.1.12 [INFO] [stderr] Compiling futures-channel v0.3.4 [INFO] [stderr] Compiling miniz_oxide v0.3.6 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling openssl-sys v0.9.54 [INFO] [stderr] Compiling libz-sys v1.0.25 [INFO] [stderr] Compiling curl-sys v0.4.30+curl-7.69.1 [INFO] [stderr] Compiling crossbeam-channel v0.3.9 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling hyper v0.12.35 [INFO] [stderr] Compiling sluice v0.4.2 [INFO] [stderr] Compiling smallvec v0.6.13 [INFO] [stderr] Compiling regex v1.3.6 [INFO] [stderr] Compiling want v0.2.0 [INFO] [stderr] Compiling base64 v0.10.1 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling num_cpus v1.12.0 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling time v0.1.42 [INFO] [stderr] Compiling socket2 v0.3.12 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling flate2 v1.0.14 [INFO] [stderr] Compiling idna v0.2.0 [INFO] [stderr] Compiling idna v0.1.5 [INFO] [stderr] Compiling mime_guess v2.0.3 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling tokio-executor v0.1.10 [INFO] [stderr] Compiling crossbeam-queue v0.2.1 [INFO] [stderr] Compiling mio v0.6.21 [INFO] [stderr] Compiling backtrace v0.3.46 [INFO] [stderr] Compiling tokio-current-thread v0.1.7 [INFO] [stderr] Compiling tokio-timer v0.2.13 [INFO] [stderr] Compiling url v2.1.1 [INFO] [stderr] Compiling crossbeam-deque v0.7.3 [INFO] [stderr] Compiling url v1.7.2 [INFO] [stderr] Compiling tokio-io v0.1.13 [INFO] [stderr] Compiling http v0.1.21 [INFO] [stderr] Compiling string v0.2.1 [INFO] [stderr] Compiling tokio-buf v0.1.1 [INFO] [stderr] Compiling tokio-threadpool v0.1.18 [INFO] [stderr] Compiling tokio-reactor v0.1.12 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling uuid v0.7.4 [INFO] [stderr] Compiling publicsuffix v1.5.4 [INFO] [stderr] Compiling cookie v0.12.0 [INFO] [stderr] Compiling tokio-tcp v0.1.4 [INFO] [stderr] Compiling tokio v0.1.22 [INFO] [stderr] Compiling h2 v0.1.26 [INFO] [stderr] Compiling http-body v0.1.0 [INFO] [stderr] Compiling futures-executor-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling futures-macro v0.3.4 [INFO] [stderr] Compiling failure v0.1.7 [INFO] [stderr] Compiling futures-util v0.3.4 [INFO] [stderr] Compiling hyper-tls v0.3.2 [INFO] [stderr] Compiling futures-executor v0.3.4 [INFO] [stderr] Compiling futures v0.3.4 [INFO] [stderr] Compiling serde_json v1.0.51 [INFO] [stderr] Compiling serde_urlencoded v0.5.5 [INFO] [stderr] Compiling serde_urlencoded v0.6.1 [INFO] [stderr] Compiling cookie_store v0.7.0 [INFO] [stderr] Compiling surf v1.0.3 [INFO] [stderr] Compiling reqwest v0.9.24 [INFO] [stderr] Compiling leetcode-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:18:18 [INFO] [stderr] | [INFO] [stderr] 18 | for i in (0..prices.len()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:15:12 [INFO] [stderr] | [INFO] [stderr] 15 | if (prices.is_empty()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:22:18 [INFO] [stderr] | [INFO] [stderr] 22 | for i in (1..prices.len()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0121_best_time_to_buy_and_sell_stock.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0121_best_time_to_buy_and_sell_stock.rs:12:12 [INFO] [stderr] | [INFO] [stderr] 12 | pub fn max_profit(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:14:12 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn max_profit(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit_1` [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:27:12 [INFO] [stderr] | [INFO] [stderr] 27 | pub fn max_profit_1(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:14:12 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn max_profit(prices: Vec, fee: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:20:12 [INFO] [stderr] | [INFO] [stderr] 20 | pub fn max_profit(k: i32, prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:17:12 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn max_profit(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0455_assign_cookies.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `find_content_children` [INFO] [stderr] --> src/solution/s0455_assign_cookies.rs:12:12 [INFO] [stderr] | [INFO] [stderr] 12 | pub fn find_content_children(g: Vec, s: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0435_non_overlapping_intervals.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `erase_overlap_intervals` [INFO] [stderr] --> src/solution/s0435_non_overlapping_intervals.rs:16:12 [INFO] [stderr] | [INFO] [stderr] 16 | pub fn erase_overlap_intervals(intervals: Vec>) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0392_is_subsequence.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `is_subsequence` [INFO] [stderr] --> src/solution/s0392_is_subsequence.rs:13:12 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn is_subsequence(s: String, t: String) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `localMax` should have a snake case name [INFO] [stderr] --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:40:21 [INFO] [stderr] | [INFO] [stderr] 40 | let mut localMax = dp[i - 1][0] - prices[0]; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `local_max` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `localMax` should have a snake case name [INFO] [stderr] --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:26:21 [INFO] [stderr] | [INFO] [stderr] 26 | let mut localMax = dp[i - 1][0] - prices[0]; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `local_max` [INFO] [stderr] [INFO] [stderr] warning: 22 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::env` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::env; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the item `fs` is imported redundantly [INFO] [stderr] --> src/main.rs:152:9 [INFO] [stderr] | [INFO] [stderr] 11 | use std::fs; [INFO] [stderr] | ------- the item `fs` is already imported here [INFO] [stderr] ... [INFO] [stderr] 152 | use std::fs; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fs` [INFO] [stderr] --> src/main.rs:152:9 [INFO] [stderr] | [INFO] [stderr] 152 | use std::fs; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::stream::StreamExt` [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | use futures::stream::StreamExt; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `is_random` is assigned to, but never used [INFO] [stderr] --> src/main.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 35 | let mut is_random = false; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = note: consider using `_is_random` instead [INFO] [stderr] [INFO] [stderr] warning: variable `is_solving` is assigned to, but never used [INFO] [stderr] --> src/main.rs:36:13 [INFO] [stderr] | [INFO] [stderr] 36 | let mut is_solving = false; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_is_solving` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `id` is never read [INFO] [stderr] --> src/main.rs:37:13 [INFO] [stderr] | [INFO] [stderr] 37 | let mut id: u32 = 0; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `is_random` is never read [INFO] [stderr] --> src/main.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | is_random = true; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `is_solving` is never read [INFO] [stderr] --> src/main.rs:56:13 [INFO] [stderr] | [INFO] [stderr] 56 | is_solving = true; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:72:17 [INFO] [stderr] | [INFO] [stderr] 72 | let mut mod_file_addon = Arc::new(Mutex::new(vec![])); [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: function is never used: `build_desc` [INFO] [stderr] --> src/main.rs:244:4 [INFO] [stderr] | [INFO] [stderr] 244 | fn build_desc(content: &str) -> String { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:116:13 [INFO] [stderr] | [INFO] [stderr] 116 | writeln!(lib_file, "{}", mod_file_addon.lock().unwrap().join("\n")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:311:5 [INFO] [stderr] | [INFO] [stderr] 311 | fs::write(mod_file, lines.join("\n")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:317:5 [INFO] [stderr] | [INFO] [stderr] 317 | writeln!(lib_file, "mod {};", solution_name); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:361:9 [INFO] [stderr] | [INFO] [stderr] 361 | writeln!(lib_file, "mod {};", file_name); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 15 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3m 08s [INFO] running `"docker" "inspect" "62be79bce259f0b44277965e569847a946a74f70d80d5bb773f8cbb0acb6d7c3"` [INFO] running `"docker" "rm" "-f" "62be79bce259f0b44277965e569847a946a74f70d80d5bb773f8cbb0acb6d7c3"` [INFO] [stdout] 62be79bce259f0b44277965e569847a946a74f70d80d5bb773f8cbb0acb6d7c3 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] c59f36e524131cfedd39b4d7194655ff0a281447e4293dcd8b6db789e9af206f [INFO] running `"docker" "start" "-a" "c59f36e524131cfedd39b4d7194655ff0a281447e4293dcd8b6db789e9af206f"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling leetcode-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:18:18 [INFO] [stderr] | [INFO] [stderr] 18 | for i in (0..prices.len()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:15:12 [INFO] [stderr] | [INFO] [stderr] 15 | if (prices.is_empty()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:22:18 [INFO] [stderr] | [INFO] [stderr] 22 | for i in (1..prices.len()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0121_best_time_to_buy_and_sell_stock.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0121_best_time_to_buy_and_sell_stock.rs:12:12 [INFO] [stderr] | [INFO] [stderr] 12 | pub fn max_profit(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:14:12 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn max_profit(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit_1` [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:27:12 [INFO] [stderr] | [INFO] [stderr] 27 | pub fn max_profit_1(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:14:12 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn max_profit(prices: Vec, fee: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:20:12 [INFO] [stderr] | [INFO] [stderr] 20 | pub fn max_profit(k: i32, prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:17:12 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn max_profit(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0455_assign_cookies.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `find_content_children` [INFO] [stderr] --> src/solution/s0455_assign_cookies.rs:12:12 [INFO] [stderr] | [INFO] [stderr] 12 | pub fn find_content_children(g: Vec, s: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0435_non_overlapping_intervals.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `erase_overlap_intervals` [INFO] [stderr] --> src/solution/s0435_non_overlapping_intervals.rs:16:12 [INFO] [stderr] | [INFO] [stderr] 16 | pub fn erase_overlap_intervals(intervals: Vec>) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0392_is_subsequence.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `is_subsequence` [INFO] [stderr] --> src/solution/s0392_is_subsequence.rs:13:12 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn is_subsequence(s: String, t: String) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `localMax` should have a snake case name [INFO] [stderr] --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:40:21 [INFO] [stderr] | [INFO] [stderr] 40 | let mut localMax = dp[i - 1][0] - prices[0]; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `local_max` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `localMax` should have a snake case name [INFO] [stderr] --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:26:21 [INFO] [stderr] | [INFO] [stderr] 26 | let mut localMax = dp[i - 1][0] - prices[0]; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `local_max` [INFO] [stderr] [INFO] [stderr] warning: 22 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:18:18 [INFO] [stderr] | [INFO] [stderr] 18 | for i in (0..prices.len()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:15:12 [INFO] [stderr] | [INFO] [stderr] 15 | if (prices.is_empty()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:22:18 [INFO] [stderr] | [INFO] [stderr] 22 | for i in (1..prices.len()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: variable `localMax` should have a snake case name [INFO] [stderr] --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:40:21 [INFO] [stderr] | [INFO] [stderr] 40 | let mut localMax = dp[i - 1][0] - prices[0]; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `local_max` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `localMax` should have a snake case name [INFO] [stderr] --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:26:21 [INFO] [stderr] | [INFO] [stderr] 26 | let mut localMax = dp[i - 1][0] - prices[0]; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `local_max` [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::env` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::env; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the item `fs` is imported redundantly [INFO] [stderr] --> src/main.rs:152:9 [INFO] [stderr] | [INFO] [stderr] 11 | use std::fs; [INFO] [stderr] | ------- the item `fs` is already imported here [INFO] [stderr] ... [INFO] [stderr] 152 | use std::fs; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fs` [INFO] [stderr] --> src/main.rs:152:9 [INFO] [stderr] | [INFO] [stderr] 152 | use std::fs; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::stream::StreamExt` [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | use futures::stream::StreamExt; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `is_random` is assigned to, but never used [INFO] [stderr] --> src/main.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 35 | let mut is_random = false; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = note: consider using `_is_random` instead [INFO] [stderr] [INFO] [stderr] warning: variable `is_solving` is assigned to, but never used [INFO] [stderr] --> src/main.rs:36:13 [INFO] [stderr] | [INFO] [stderr] 36 | let mut is_solving = false; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_is_solving` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `id` is never read [INFO] [stderr] --> src/main.rs:37:13 [INFO] [stderr] | [INFO] [stderr] 37 | let mut id: u32 = 0; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `is_random` is never read [INFO] [stderr] --> src/main.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | is_random = true; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `is_solving` is never read [INFO] [stderr] --> src/main.rs:56:13 [INFO] [stderr] | [INFO] [stderr] 56 | is_solving = true; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:72:17 [INFO] [stderr] | [INFO] [stderr] 72 | let mut mod_file_addon = Arc::new(Mutex::new(vec![])); [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: function is never used: `build_desc` [INFO] [stderr] --> src/main.rs:244:4 [INFO] [stderr] | [INFO] [stderr] 244 | fn build_desc(content: &str) -> String { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:116:13 [INFO] [stderr] | [INFO] [stderr] 116 | writeln!(lib_file, "{}", mod_file_addon.lock().unwrap().join("\n")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:311:5 [INFO] [stderr] | [INFO] [stderr] 311 | fs::write(mod_file, lines.join("\n")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:317:5 [INFO] [stderr] | [INFO] [stderr] 317 | writeln!(lib_file, "mod {};", solution_name); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:361:9 [INFO] [stderr] | [INFO] [stderr] 361 | writeln!(lib_file, "mod {};", file_name); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 15 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.29s [INFO] running `"docker" "inspect" "c59f36e524131cfedd39b4d7194655ff0a281447e4293dcd8b6db789e9af206f"` [INFO] running `"docker" "rm" "-f" "c59f36e524131cfedd39b4d7194655ff0a281447e4293dcd8b6db789e9af206f"` [INFO] [stdout] c59f36e524131cfedd39b4d7194655ff0a281447e4293dcd8b6db789e9af206f [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] ac5543db7e1c2108233e6e45f19488a8fe14224298a6ee6483d51e6f87dc446e [INFO] running `"docker" "start" "-a" "ac5543db7e1c2108233e6e45f19488a8fe14224298a6ee6483d51e6f87dc446e"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:18:18 [INFO] [stderr] | [INFO] [stderr] 18 | for i in (0..prices.len()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:15:12 [INFO] [stderr] | [INFO] [stderr] 15 | if (prices.is_empty()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:22:18 [INFO] [stderr] | [INFO] [stderr] 22 | for i in (1..prices.len()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0121_best_time_to_buy_and_sell_stock.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0121_best_time_to_buy_and_sell_stock.rs:12:12 [INFO] [stderr] | [INFO] [stderr] 12 | pub fn max_profit(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:14:12 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn max_profit(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit_1` [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:27:12 [INFO] [stderr] | [INFO] [stderr] 27 | pub fn max_profit_1(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:14:12 [INFO] [stderr] | [INFO] [stderr] 14 | pub fn max_profit(prices: Vec, fee: i32) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:20:12 [INFO] [stderr] | [INFO] [stderr] 20 | pub fn max_profit(k: i32, prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `max_profit` [INFO] [stderr] --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:17:12 [INFO] [stderr] | [INFO] [stderr] 17 | pub fn max_profit(prices: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0455_assign_cookies.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `find_content_children` [INFO] [stderr] --> src/solution/s0455_assign_cookies.rs:12:12 [INFO] [stderr] | [INFO] [stderr] 12 | pub fn find_content_children(g: Vec, s: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0435_non_overlapping_intervals.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `erase_overlap_intervals` [INFO] [stderr] --> src/solution/s0435_non_overlapping_intervals.rs:16:12 [INFO] [stderr] | [INFO] [stderr] 16 | pub fn erase_overlap_intervals(intervals: Vec>) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/solution/s0392_is_subsequence.rs:4:12 [INFO] [stderr] | [INFO] [stderr] 4 | pub struct Solution {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `is_subsequence` [INFO] [stderr] --> src/solution/s0392_is_subsequence.rs:13:12 [INFO] [stderr] | [INFO] [stderr] 13 | pub fn is_subsequence(s: String, t: String) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `localMax` should have a snake case name [INFO] [stderr] --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:40:21 [INFO] [stderr] | [INFO] [stderr] 40 | let mut localMax = dp[i - 1][0] - prices[0]; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `local_max` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `localMax` should have a snake case name [INFO] [stderr] --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:26:21 [INFO] [stderr] | [INFO] [stderr] 26 | let mut localMax = dp[i - 1][0] - prices[0]; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `local_max` [INFO] [stderr] [INFO] [stderr] warning: 22 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::env` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::env; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the item `fs` is imported redundantly [INFO] [stderr] --> src/main.rs:152:9 [INFO] [stderr] | [INFO] [stderr] 11 | use std::fs; [INFO] [stderr] | ------- the item `fs` is already imported here [INFO] [stderr] ... [INFO] [stderr] 152 | use std::fs; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fs` [INFO] [stderr] --> src/main.rs:152:9 [INFO] [stderr] | [INFO] [stderr] 152 | use std::fs; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `futures::stream::StreamExt` [INFO] [stderr] --> src/main.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | use futures::stream::StreamExt; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `is_random` is assigned to, but never used [INFO] [stderr] --> src/main.rs:35:13 [INFO] [stderr] | [INFO] [stderr] 35 | let mut is_random = false; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = note: consider using `_is_random` instead [INFO] [stderr] [INFO] [stderr] warning: variable `is_solving` is assigned to, but never used [INFO] [stderr] --> src/main.rs:36:13 [INFO] [stderr] | [INFO] [stderr] 36 | let mut is_solving = false; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: consider using `_is_solving` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `id` is never read [INFO] [stderr] --> src/main.rs:37:13 [INFO] [stderr] | [INFO] [stderr] 37 | let mut id: u32 = 0; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `is_random` is never read [INFO] [stderr] --> src/main.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | is_random = true; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `is_solving` is never read [INFO] [stderr] --> src/main.rs:56:13 [INFO] [stderr] | [INFO] [stderr] 56 | is_solving = true; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:72:17 [INFO] [stderr] | [INFO] [stderr] 72 | let mut mod_file_addon = Arc::new(Mutex::new(vec![])); [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: function is never used: `build_desc` [INFO] [stderr] --> src/main.rs:244:4 [INFO] [stderr] | [INFO] [stderr] 244 | fn build_desc(content: &str) -> String { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:116:13 [INFO] [stderr] | [INFO] [stderr] 116 | writeln!(lib_file, "{}", mod_file_addon.lock().unwrap().join("\n")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:311:5 [INFO] [stderr] | [INFO] [stderr] 311 | fs::write(mod_file, lines.join("\n")); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:317:5 [INFO] [stderr] | [INFO] [stderr] 317 | writeln!(lib_file, "mod {};", solution_name); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:361:9 [INFO] [stderr] | [INFO] [stderr] 361 | writeln!(lib_file, "mod {};", file_name); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 15 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/solution/s0309_best_time_to_buy_and_sell_stock_with_cooldown.rs:18:18 [INFO] [stderr] | [INFO] [stderr] 18 | for i in (0..prices.len()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:15:12 [INFO] [stderr] | [INFO] [stderr] 15 | if (prices.is_empty()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression [INFO] [stderr] --> src/solution/s0714_best_time_to_buy_and_sell_stock_with_transaction_fee.rs:22:18 [INFO] [stderr] | [INFO] [stderr] 22 | for i in (1..prices.len()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: variable `localMax` should have a snake case name [INFO] [stderr] --> src/solution/s0188_best_time_to_buy_and_sell_stock_iv.rs:40:21 [INFO] [stderr] | [INFO] [stderr] 40 | let mut localMax = dp[i - 1][0] - prices[0]; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `local_max` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `localMax` should have a snake case name [INFO] [stderr] --> src/solution/s0123_best_time_to_buy_and_sell_stock_iii.rs:26:21 [INFO] [stderr] | [INFO] [stderr] 26 | let mut localMax = dp[i - 1][0] - prices[0]; [INFO] [stderr] | ^^^^^^^^ help: convert the identifier to snake case: `local_max` [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.35s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/leetcode_rust-ab030af87c1e53a8 [INFO] [stdout] [INFO] [stdout] running 8 tests [INFO] [stdout] test solution::s0121_best_time_to_buy_and_sell_stock::tests::test_121 ... ok [INFO] [stdout] test solution::s0714_best_time_to_buy_and_sell_stock_with_transaction_fee::tests::test_714 ... ok [INFO] [stdout] test solution::s0123_best_time_to_buy_and_sell_stock_iii::tests::test_123 ... ok [INFO] [stdout] test solution::s0392_is_subsequence::tests::test_392 ... ok [INFO] [stdout] test solution::s0309_best_time_to_buy_and_sell_stock_with_cooldown::tests::test_309 ... ok [INFO] [stdout] test solution::s0188_best_time_to_buy_and_sell_stock_iv::tests::test_188 ... ok [INFO] [stdout] test solution::s0455_assign_cookies::tests::test_455 ... ok [INFO] [stdout] test solution::s0435_non_overlapping_intervals::tests::test_435 ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/leetcode_rust-62321de1fe203667 [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" "ac5543db7e1c2108233e6e45f19488a8fe14224298a6ee6483d51e6f87dc446e"` [INFO] running `"docker" "rm" "-f" "ac5543db7e1c2108233e6e45f19488a8fe14224298a6ee6483d51e6f87dc446e"` [INFO] [stdout] ac5543db7e1c2108233e6e45f19488a8fe14224298a6ee6483d51e6f87dc446e