[INFO] cloning repository https://github.com/sue71/leetcode [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sue71/leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsue71%2Fleetcode", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsue71%2Fleetcode'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] eb3b7703ad6c977bfd92b76da55d31e782a36b36 [INFO] checking sue71/leetcode against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsue71%2Fleetcode" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sue71/leetcode on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-5/source/.cargo/config [INFO] started tweaking git repo https://github.com/sue71/leetcode [INFO] finished tweaking git repo https://github.com/sue71/leetcode [INFO] tweaked toml for git repo https://github.com/sue71/leetcode written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/sue71/leetcode already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9130b8d68ff475ffa74b7a8d201d851c3575cb78d090a2e7b357e17399d10b8f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "9130b8d68ff475ffa74b7a8d201d851c3575cb78d090a2e7b357e17399d10b8f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9130b8d68ff475ffa74b7a8d201d851c3575cb78d090a2e7b357e17399d10b8f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9130b8d68ff475ffa74b7a8d201d851c3575cb78d090a2e7b357e17399d10b8f", kill_on_drop: false }` [INFO] [stdout] 9130b8d68ff475ffa74b7a8d201d851c3575cb78d090a2e7b357e17399d10b8f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 77bf473fd48a6001991d13a8c1e510fffb5f10f3a967f4b7bebd7c50a7cc2d09 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "77bf473fd48a6001991d13a8c1e510fffb5f10f3a967f4b7bebd7c50a7cc2d09", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking futures v0.1.29 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling pkg-config v0.3.16 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking pin-utils v0.1.0-alpha.4 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking futures-sink-preview v0.3.0-alpha.19 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Checking futures-io-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling httparse v1.3.4 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Compiling curl v0.4.25 [INFO] [stderr] Compiling native-tls v0.2.3 [INFO] [stderr] Checking futures-io v0.3.4 [INFO] [stderr] Checking futures-task v0.3.4 [INFO] [stderr] Compiling isahc v0.7.6 [INFO] [stderr] Checking adler32 v1.0.4 [INFO] [stderr] Compiling libnghttp2-sys v0.1.2 [INFO] [stderr] Checking try_from v0.3.2 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling proc-macro2 v1.0.5 [INFO] [stderr] Checking arrayvec v0.4.11 [INFO] [stderr] Checking miniz_oxide v0.3.3 [INFO] [stderr] Checking crc32fast v1.2.0 [INFO] [stderr] Checking encoding_rs v0.8.20 [INFO] [stderr] Checking iovec v0.1.3 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking socket2 v0.3.11 [INFO] [stderr] Compiling unicase v2.5.1 [INFO] [stderr] Compiling error-chain v0.12.1 [INFO] [stderr] Checking sluice v0.4.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking regex v1.3.4 [INFO] [stderr] Checking backtrace v0.3.38 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking flate2 v1.0.12 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Compiling openssl-sys v0.9.50 [INFO] [stderr] Compiling libz-sys v1.0.25 [INFO] [stderr] Compiling curl-sys v0.4.25 [INFO] [stderr] Checking http v0.1.18 [INFO] [stderr] Checking string v0.2.1 [INFO] [stderr] Checking url v2.1.0 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling hyper v0.12.35 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking tokio-executor v0.1.8 [INFO] [stderr] Checking tokio-sync v0.1.6 [INFO] [stderr] Checking tokio-buf v0.1.1 [INFO] [stderr] Checking want v0.2.0 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Compiling mime_guess v2.0.1 [INFO] [stderr] Checking tokio-timer v0.2.11 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking futures-util-preview v0.3.0-alpha.19 [INFO] [stderr] Checking publicsuffix v1.5.3 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling openssl v0.10.25 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking cookie v0.12.0 [INFO] [stderr] Checking tokio-reactor v0.1.10 [INFO] [stderr] Checking tokio-threadpool v0.1.16 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking http-body v0.1.0 [INFO] [stderr] Checking h2 v0.1.26 [INFO] [stderr] Checking futures-executor-preview v0.3.0-alpha.19 [INFO] [stderr] Checking futures-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling serde_derive v1.0.101 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Checking hyper-tls v0.3.2 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Compiling futures-macro v0.3.4 [INFO] [stderr] Checking futures-util v0.3.4 [INFO] [stderr] Checking futures-executor v0.3.4 [INFO] [stderr] Checking futures v0.3.4 [INFO] [stderr] Checking serde v1.0.101 [INFO] [stderr] Checking serde_json v1.0.41 [INFO] [stderr] Checking serde_urlencoded v0.5.5 [INFO] [stderr] Checking serde_urlencoded v0.6.1 [INFO] [stderr] Checking cookie_store v0.7.0 [INFO] [stderr] Checking surf v1.0.3 [INFO] [stderr] Checking reqwest v0.9.21 [INFO] [stderr] Checking leetcode-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `to_list` [INFO] [stdout] --> src/solution/s0002_add_two_numbers.rs:32:32 [INFO] [stdout] | [INFO] [stdout] 32 | use crate::util::linked_list::{to_list, ListNode}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/solution/s0002_add_two_numbers.rs:88:27 [INFO] [stdout] | [INFO] [stdout] 88 | let mut num = (a_val + b_val + if step_in { 1 } else { 0 }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `to_list` [INFO] [stdout] --> src/problem/p0002_add_two_numbers.rs:32:42 [INFO] [stdout] | [INFO] [stdout] 32 | use crate::util::linked_list::{ListNode, to_list}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/solution/s0002_add_two_numbers.rs:88:27 [INFO] [stdout] | [INFO] [stdout] 88 | let mut num = (a_val + b_val + if step_in { 1 } else { 0 }); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/problem/p0001_two_sum.rs:50:9 [INFO] [stdout] | [INFO] [stdout] 50 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `to_list` [INFO] [stdout] --> src/problem/p0002_add_two_numbers.rs:32:42 [INFO] [stdout] | [INFO] [stdout] 32 | use crate::util::linked_list::{ListNode, to_list}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/problem/p0002_add_two_numbers.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/problem/p0003_longest_substring_without_repeating_characters.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/solution/s0002_add_two_numbers.rs:94:9 [INFO] [stdout] | [INFO] [stdout] 64 | / loop { [INFO] [stdout] 65 | | let a_val = match a { [INFO] [stdout] 66 | | Some(node) => { [INFO] [stdout] 67 | | a = node.next; [INFO] [stdout] ... | [INFO] [stdout] 92 | | tail = &mut tail.as_mut().unwrap().next; [INFO] [stdout] 93 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 94 | head [INFO] [stdout] | ^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ci` [INFO] [stdout] --> src/solution/s0003_longest_substring_without_repeating_characters.rs:84:17 [INFO] [stdout] | [INFO] [stdout] 84 | let ci = &c[i]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ci` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nums` [INFO] [stdout] --> src/problem/p0001_two_sum.rs:41:20 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn two_sum(nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_nums` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `target` [INFO] [stdout] --> src/problem/p0001_two_sum.rs:41:36 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn two_sum(nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l1` [INFO] [stdout] --> src/problem/p0002_add_two_numbers.rs:56:28 [INFO] [stdout] | [INFO] [stdout] 56 | pub fn add_two_numbers(l1: Option>, l2: Option>) -> Option> { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_l1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l2` [INFO] [stdout] --> src/problem/p0002_add_two_numbers.rs:56:55 [INFO] [stdout] | [INFO] [stdout] 56 | pub fn add_two_numbers(l1: Option>, l2: Option>) -> Option> { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_l2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/problem/p0003_longest_substring_without_repeating_characters.rs:45:40 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn length_of_longest_substring(s: String) -> i32 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/solution/s0002_add_two_numbers.rs:94:9 [INFO] [stdout] | [INFO] [stdout] 64 | / loop { [INFO] [stdout] 65 | | let a_val = match a { [INFO] [stdout] 66 | | Some(node) => { [INFO] [stdout] 67 | | a = node.next; [INFO] [stdout] ... | [INFO] [stdout] 92 | | tail = &mut tail.as_mut().unwrap().next; [INFO] [stdout] 93 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 94 | head [INFO] [stdout] | ^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ci` [INFO] [stdout] --> src/solution/s0003_longest_substring_without_repeating_characters.rs:84:17 [INFO] [stdout] | [INFO] [stdout] 84 | let ci = &c[i]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_ci` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `nums` [INFO] [stdout] --> src/problem/p0001_two_sum.rs:41:20 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn two_sum(nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_nums` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `target` [INFO] [stdout] --> src/problem/p0001_two_sum.rs:41:36 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn two_sum(nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l1` [INFO] [stdout] --> src/problem/p0002_add_two_numbers.rs:56:28 [INFO] [stdout] | [INFO] [stdout] 56 | pub fn add_two_numbers(l1: Option>, l2: Option>) -> Option> { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_l1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `l2` [INFO] [stdout] --> src/problem/p0002_add_two_numbers.rs:56:55 [INFO] [stdout] | [INFO] [stdout] 56 | pub fn add_two_numbers(l1: Option>, l2: Option>) -> Option> { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_l2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/problem/p0003_longest_substring_without_repeating_characters.rs:45:40 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn length_of_longest_substring(s: String) -> i32 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/solution/s0001_two_sum.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 19 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `two_sum` [INFO] [stdout] --> src/solution/s0001_two_sum.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 28 | pub fn two_sum(nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/solution/s0002_add_two_numbers.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 31 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_two_numbers` [INFO] [stdout] --> src/solution/s0002_add_two_numbers.rs:56:12 [INFO] [stdout] | [INFO] [stdout] 56 | pub fn add_two_numbers( [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/solution/s0003_longest_substring_without_repeating_characters.rs:37:12 [INFO] [stdout] | [INFO] [stdout] 37 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `length_of_longest_substring` [INFO] [stdout] --> src/solution/s0003_longest_substring_without_repeating_characters.rs:49:12 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn length_of_longest_substring(s: String) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `length_of_longest_substring_map` [INFO] [stdout] --> src/solution/s0003_longest_substring_without_repeating_characters.rs:73:12 [INFO] [stdout] | [INFO] [stdout] 73 | pub fn length_of_longest_substring_map(s: String) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/problem/p0001_two_sum.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 33 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `two_sum` [INFO] [stdout] --> src/problem/p0001_two_sum.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn two_sum(nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/problem/p0002_add_two_numbers.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 31 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_two_numbers` [INFO] [stdout] --> src/problem/p0002_add_two_numbers.rs:56:12 [INFO] [stdout] | [INFO] [stdout] 56 | pub fn add_two_numbers(l1: Option>, l2: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/problem/p0003_longest_substring_without_repeating_characters.rs:37:12 [INFO] [stdout] | [INFO] [stdout] 37 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `length_of_longest_substring` [INFO] [stdout] --> src/problem/p0003_longest_substring_without_repeating_characters.rs:45:12 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn length_of_longest_substring(s: String) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/problem/p0001_two_sum.rs:33:12 [INFO] [stdout] | [INFO] [stdout] 33 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `two_sum` [INFO] [stdout] --> src/problem/p0001_two_sum.rs:41:12 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn two_sum(nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/problem/p0002_add_two_numbers.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 31 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_two_numbers` [INFO] [stdout] --> src/problem/p0002_add_two_numbers.rs:56:12 [INFO] [stdout] | [INFO] [stdout] 56 | pub fn add_two_numbers(l1: Option>, l2: Option>) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Solution` [INFO] [stdout] --> src/problem/p0003_longest_substring_without_repeating_characters.rs:37:12 [INFO] [stdout] | [INFO] [stdout] 37 | pub struct Solution {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `length_of_longest_substring` [INFO] [stdout] --> src/problem/p0003_longest_substring_without_repeating_characters.rs:45:12 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn length_of_longest_substring(s: String) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 23 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::env; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `fs` is imported redundantly [INFO] [stdout] --> src/main.rs:152:9 [INFO] [stdout] | [INFO] [stdout] 11 | use std::fs; [INFO] [stdout] | ------- the item `fs` is already imported here [INFO] [stdout] ... [INFO] [stdout] 152 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/main.rs:152:9 [INFO] [stdout] | [INFO] [stdout] 152 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::env; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `fs` is imported redundantly [INFO] [stdout] --> src/main.rs:152:9 [INFO] [stdout] | [INFO] [stdout] 11 | use std::fs; [INFO] [stdout] | ------- the item `fs` is already imported here [INFO] [stdout] ... [INFO] [stdout] 152 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/main.rs:152:9 [INFO] [stdout] | [INFO] [stdout] 152 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::stream::StreamExt` [INFO] [stdout] --> src/main.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | use futures::stream::StreamExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `is_random` is assigned to, but never used [INFO] [stdout] --> src/main.rs:35:13 [INFO] [stdout] | [INFO] [stdout] 35 | let mut is_random = false; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_is_random` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `is_solving` is assigned to, but never used [INFO] [stdout] --> src/main.rs:36:13 [INFO] [stdout] | [INFO] [stdout] 36 | let mut is_solving = false; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_is_solving` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `id` is never read [INFO] [stdout] --> src/main.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | let mut id: u32 = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_random` is never read [INFO] [stdout] --> src/main.rs:51:13 [INFO] [stdout] | [INFO] [stdout] 51 | is_random = true; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_solving` is never read [INFO] [stdout] --> src/main.rs:56:13 [INFO] [stdout] | [INFO] [stdout] 56 | is_solving = true; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:72:17 [INFO] [stdout] | [INFO] [stdout] 72 | let mut mod_file_addon = Arc::new(Mutex::new(vec![])); [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::stream::StreamExt` [INFO] [stdout] --> src/main.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | use futures::stream::StreamExt; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `is_random` is assigned to, but never used [INFO] [stdout] --> src/main.rs:35:13 [INFO] [stdout] | [INFO] [stdout] 35 | let mut is_random = false; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_is_random` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `is_solving` is assigned to, but never used [INFO] [stdout] --> src/main.rs:36:13 [INFO] [stdout] | [INFO] [stdout] 36 | let mut is_solving = false; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_is_solving` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `id` is never read [INFO] [stdout] --> src/main.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | let mut id: u32 = 0; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_random` is never read [INFO] [stdout] --> src/main.rs:51:13 [INFO] [stdout] | [INFO] [stdout] 51 | is_random = true; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_solving` is never read [INFO] [stdout] --> src/main.rs:56:13 [INFO] [stdout] | [INFO] [stdout] 56 | is_solving = true; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:72:17 [INFO] [stdout] | [INFO] [stdout] 72 | let mut mod_file_addon = Arc::new(Mutex::new(vec![])); [INFO] [stdout] | ----^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:116:13 [INFO] [stdout] | [INFO] [stdout] 116 | writeln!(lib_file, "{}", mod_file_addon.lock().unwrap().join("\n")); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:311:5 [INFO] [stdout] | [INFO] [stdout] 311 | fs::write(mod_file, lines.join("\n")); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:317:5 [INFO] [stdout] | [INFO] [stdout] 317 | writeln!(lib_file, "mod {};", solution_name); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:360:9 [INFO] [stdout] | [INFO] [stdout] 360 | writeln!(lib_file, "mod {};", file_name); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:116:13 [INFO] [stdout] | [INFO] [stdout] 116 | writeln!(lib_file, "{}", mod_file_addon.lock().unwrap().join("\n")); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:311:5 [INFO] [stdout] | [INFO] [stdout] 311 | fs::write(mod_file, lines.join("\n")); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:317:5 [INFO] [stdout] | [INFO] [stdout] 317 | writeln!(lib_file, "mod {};", solution_name); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:360:9 [INFO] [stdout] | [INFO] [stdout] 360 | writeln!(lib_file, "mod {};", file_name); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 50s [INFO] running `Command { std: "docker" "inspect" "77bf473fd48a6001991d13a8c1e510fffb5f10f3a967f4b7bebd7c50a7cc2d09", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "77bf473fd48a6001991d13a8c1e510fffb5f10f3a967f4b7bebd7c50a7cc2d09", kill_on_drop: false }` [INFO] [stdout] 77bf473fd48a6001991d13a8c1e510fffb5f10f3a967f4b7bebd7c50a7cc2d09