[INFO] cloning repository https://github.com/satanson/rust_etudes [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/satanson/rust_etudes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatanson%2Frust_etudes", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatanson%2Frust_etudes'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0501fe82134be8ab3428a96b7818367e4bb95d77 [INFO] checking satanson/rust_etudes against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatanson%2Frust_etudes" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/satanson/rust_etudes on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/satanson/rust_etudes [INFO] finished tweaking git repo https://github.com/satanson/rust_etudes [INFO] tweaked toml for git repo https://github.com/satanson/rust_etudes written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/satanson/rust_etudes already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 20aeb268e789900084ca098fefb19a36f2fe656d8a24f49dbe1542df39e1671c [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" "20aeb268e789900084ca098fefb19a36f2fe656d8a24f49dbe1542df39e1671c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "20aeb268e789900084ca098fefb19a36f2fe656d8a24f49dbe1542df39e1671c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "20aeb268e789900084ca098fefb19a36f2fe656d8a24f49dbe1542df39e1671c", kill_on_drop: false }` [INFO] [stdout] 20aeb268e789900084ca098fefb19a36f2fe656d8a24f49dbe1542df39e1671c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 72a237259bfc624cbadf41df15eb9f2fb27f68d53befe658025f113160b966b8 [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" "72a237259bfc624cbadf41df15eb9f2fb27f68d53befe658025f113160b966b8", kill_on_drop: false }` [INFO] [stderr] Checking common v0.1.0 (/opt/rustwide/workdir/common) [INFO] [stderr] Compiling my_proc_macro v1.0.0 (/opt/rustwide/workdir/my_proc_macro) [INFO] [stderr] Checking etudes v0.1.0 (/opt/rustwide/workdir/etudes) [INFO] [stderr] Checking n020_Valid_Parentheses v0.1.0 (/opt/rustwide/workdir/n020_Valid_Parentheses) [INFO] [stderr] Checking two_sum v0.1.0 (/opt/rustwide/workdir/two_sum) [INFO] [stderr] Checking n018_4Sum v0.1.0 (/opt/rustwide/workdir/n018_4Sum) [INFO] [stderr] Checking n011_Container_With_Most_Water v0.1.0 (/opt/rustwide/workdir/n011_Container_With_Most_Water) [INFO] [stderr] Checking n041_First_Missing_Positive v0.1.0 (/opt/rustwide/workdir/n041_First_Missing_Positive) [INFO] [stderr] Checking n045_Jump_Game_II v0.1.0 (/opt/rustwide/workdir/n045_Jump_Game_II) [INFO] [stderr] Checking n046_Permutations v0.1.0 (/opt/rustwide/workdir/n046_Permutations) [INFO] [stderr] Checking n022_Generate_Parentheses v0.1.0 (/opt/rustwide/workdir/n022_Generate_Parentheses) [INFO] [stderr] Checking n049_Group_Anagrams v0.1.0 (/opt/rustwide/workdir/n049_Group_Anagrams) [INFO] [stderr] Checking ZigZag_Conversion v0.1.0 (/opt/rustwide/workdir/ZigZag_Conversion) [INFO] [stderr] Checking n039_Combination_Sum v0.1.0 (/opt/rustwide/workdir/n039_Combination_Sum) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> etudes/src/util/mod.rs:153:11 [INFO] [stdout] | [INFO] [stdout] 153 | let a: &TraitA = &StructA {}; [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn TraitA` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> n046_Permutations/src/main.rs:39:18 [INFO] [stdout] | [INFO] [stdout] 39 | xs[i] %= (i+1); [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 imports: `thread`, `time` [INFO] [stdout] --> n018_4Sum/src/main.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{thread,time}; [INFO] [stdout] | ^^^^^^ ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n049_Group_Anagrams` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n049_group_anagrams` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking n032_Longest_Valid_Parentheses v0.1.0 (/opt/rustwide/workdir/n032_Longest_Valid_Parentheses) [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> etudes/src/util/mod.rs:153:7 [INFO] [stdout] | [INFO] [stdout] 153 | let a: &TraitA = &StructA {}; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n018_4Sum` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n018_4_sum` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n020_Valid_Parentheses` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n020_valid_parentheses` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> etudes/src/util/mod.rs:124:7 [INFO] [stdout] | [INFO] [stdout] 124 | let mut a = Wrapper(&s); [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: `...` range patterns are deprecated [INFO] [stdout] --> common/src/lib.rs:62:12 [INFO] [stdout] | [INFO] [stdout] 62 | '1'...'9' => { [INFO] [stdout] | ^^^ help: use `..=` for an inclusive range [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> ZigZag_Conversion/src/main.rs:59:7 [INFO] [stdout] | [INFO] [stdout] 59 | let s1 = String::from("PAYPALISHIRING"); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n046_Permutations` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n046_permutations` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n039_Combination_Sum` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n039_combination_sum` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking String_to_Integer v0.1.0 (/opt/rustwide/workdir/String_to_Integer) [INFO] [stdout] warning: crate `ZigZag_Conversion` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `zig_zag_conversion` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking n016_3Sum_Closest v0.1.0 (/opt/rustwide/workdir/n016_3Sum_Closest) [INFO] [stdout] warning: crate `n022_Generate_Parentheses` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n022_generate_parentheses` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking n028_Implement_strStr v0.1.0 (/opt/rustwide/workdir/n028_Implement_strStr) [INFO] [stderr] Checking n051_N_Queens v0.1.0 (/opt/rustwide/workdir/n051_N_Queens) [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking n015_3Sum v0.1.0 (/opt/rustwide/workdir/n015_3Sum) [INFO] [stdout] warning: crate `n011_Container_With_Most_Water` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n011_container_with_most_water` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n045_Jump_Game_II` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n045_jump_game_ii` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking Reverse_Integer v0.1.0 (/opt/rustwide/workdir/Reverse_Integer) [INFO] [stderr] Checking n014_Longest_Common_Prefix v0.1.0 (/opt/rustwide/workdir/n014_Longest_Common_Prefix) [INFO] [stderr] Checking n034_Find_First_and_Last_Position_of_Element_in_Sorted_Array v0.1.0 (/opt/rustwide/workdir/n034_Find_First_and_Last_Position_of_Element_in_Sorted_Array) [INFO] [stdout] warning: variable `max_i` is assigned to, but never used [INFO] [stdout] --> n041_First_Missing_Positive/src/main.rs:6:21 [INFO] [stdout] | [INFO] [stdout] 6 | let (mut min_i, mut max_i) = (0usize, 0usize); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_max_i` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `max_i` is never read [INFO] [stdout] --> n041_First_Missing_Positive/src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | max_i = i; [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: crate `n041_First_Missing_Positive` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n041_first_missing_positive` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking n047_Permutations_II v0.1.0 (/opt/rustwide/workdir/n047_Permutations_II) [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking n040_Combination_Sum_II v0.1.0 (/opt/rustwide/workdir/n040_Combination_Sum_II) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `k` [INFO] [stdout] --> n032_Longest_Valid_Parentheses/src/main.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | (Some(&(k, 'M')), ')') => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_k` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> n032_Longest_Valid_Parentheses/src/main.rs:12:15 [INFO] [stdout] | [INFO] [stdout] 12 | let mut tmp = i + 1 - j; [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: variable does not need to be mutable [INFO] [stdout] --> n032_Longest_Valid_Parentheses/src/main.rs:23:19 [INFO] [stdout] | [INFO] [stdout] 23 | let mut tmp = i + 1 - l; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n032_Longest_Valid_Parentheses` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n032_longest_valid_parentheses` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> etudes/src/util/mod.rs:153:11 [INFO] [stdout] | [INFO] [stdout] 153 | let a: &TraitA = &StructA {}; [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn TraitA` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Pair` in this scope [INFO] [stdout] --> n051_N_Queens/src/main.rs:6:21 [INFO] [stdout] | [INFO] [stdout] 4 | struct StkElm { [INFO] [stdout] | - help: you might be missing a type parameter: `` [INFO] [stdout] 5 | pos: Pos, [INFO] [stdout] 6 | alternatives: Vec [INFO] [stdout] | ^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> n051_N_Queens/src/main.rs:10:45 [INFO] [stdout] | [INFO] [stdout] 10 | Box::new(StkElm{pos:(0,0), alternatives:vec!()}) [INFO] [stdout] | ^^^^^^ cannot infer type for type parameter `T` [INFO] [stdout] | [INFO] [stdout] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n016_3Sum_Closest` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n016_3_sum_closest` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking n050_Pow_x_n v0.1.0 (/opt/rustwide/workdir/n050_Pow_x_n) [INFO] [stdout] warning: constant is never used: `i32_max` [INFO] [stdout] --> Reverse_Integer/src/main.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | const i32_max: i32 = std::i32::MAX; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `i32_min` [INFO] [stdout] --> Reverse_Integer/src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | const i32_min: i32 = std::i32::MIN; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `Reverse_Integer` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `reverse_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `i32_max` should have an upper case name [INFO] [stdout] --> Reverse_Integer/src/main.rs:6:11 [INFO] [stdout] | [INFO] [stdout] 6 | const i32_max: i32 = std::i32::MAX; [INFO] [stdout] | ^^^^^^^ help: convert the identifier to upper case: `I32_MAX` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `i32_min` should have an upper case name [INFO] [stdout] --> Reverse_Integer/src/main.rs:26:11 [INFO] [stdout] | [INFO] [stdout] 26 | const i32_min: i32 = std::i32::MIN; [INFO] [stdout] | ^^^^^^^ help: convert the identifier to upper case: `I32_MIN` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `i32_max` should have an upper case name [INFO] [stdout] --> Reverse_Integer/src/main.rs:45:11 [INFO] [stdout] | [INFO] [stdout] 45 | const i32_max: i32 = std::i32::MAX; [INFO] [stdout] | ^^^^^^^ help: convert the identifier to upper case: `I32_MAX` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `i32_min` should have an upper case name [INFO] [stdout] --> Reverse_Integer/src/main.rs:46:11 [INFO] [stdout] | [INFO] [stdout] 46 | const i32_min: i32 = std::i32::MIN; [INFO] [stdout] | ^^^^^^^ help: convert the identifier to upper case: `I32_MIN` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n016_3Sum_Closest` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n016_3_sum_closest` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `max_i` is assigned to, but never used [INFO] [stdout] --> n041_First_Missing_Positive/src/main.rs:6:21 [INFO] [stdout] | [INFO] [stdout] 6 | let (mut min_i, mut max_i) = (0usize, 0usize); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_max_i` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `max_i` is never read [INFO] [stdout] --> n041_First_Missing_Positive/src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | max_i = i; [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n041_First_Missing_Positive` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n041_first_missing_positive` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking n027_Remove_Element v0.1.0 (/opt/rustwide/workdir/n027_Remove_Element) [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking Palindrome_Number v0.1.0 (/opt/rustwide/workdir/Palindrome_Number) [INFO] [stderr] Checking Median_of_Two_Sorted_Arrays v0.1.0 (/opt/rustwide/workdir/Median_of_Two_Sorted_Arrays) [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> etudes/src/util/mod.rs:153:7 [INFO] [stdout] | [INFO] [stdout] 153 | let a: &TraitA = &StructA {}; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n014_Longest_Common_Prefix` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n014_longest_common_prefix` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n047_Permutations_II` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n047_permutations_ii` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking n029_Divide_Two_Integers v0.1.0 (/opt/rustwide/workdir/n029_Divide_Two_Integers) [INFO] [stdout] warning: crate `String_to_Integer` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `string_to_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n040_Combination_Sum_II` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n040_combination_sum_ii` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n015_3Sum` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n015_3_sum` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> etudes/src/util/mod.rs:124:7 [INFO] [stdout] | [INFO] [stdout] 124 | let mut a = Wrapper(&s); [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n028_Implement_strStr` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n028_implement_str_str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking add_two_numbers v0.1.0 (/opt/rustwide/workdir/add_two_numbers) [INFO] [stdout] warning: crate `n034_Find_First_and_Last_Position_of_Element_in_Sorted_Array` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n034_find_first_and_last_position_of_element_in_sorted_array` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking n042_Trapping_Rain_Water v0.1.0 (/opt/rustwide/workdir/n042_Trapping_Rain_Water) [INFO] [stderr] Checking Longest_Palindromic_Substring v0.1.0 (/opt/rustwide/workdir/Longest_Palindromic_Substring) [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0282, E0412. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `n051_N_Queens` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n050_Pow_x_n` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n050_pow_x_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `String_to_Integer` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `string_to_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n027_Remove_Element` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n027_remove_element` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n039_Combination_Sum` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n039_combination_sum` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `Palindrome_Number` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `palindrome_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n042_Trapping_Rain_Water` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n042_trapping_rain_water` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n011_Container_With_Most_Water` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n011_container_with_most_water` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `n029_Divide_Two_Integers` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `n029_divide_two_integers` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `Median_of_Two_Sorted_Arrays` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `median_of_two_sorted_arrays` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: comparison is useless due to type limits [INFO] [stdout] --> Median_of_Two_Sorted_Arrays/src/main.rs:11:16 [INFO] [stdout] | [INFO] [stdout] 11 | assert_eq!(0 <= k && k < a_len + b_len, true); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> Longest_Palindromic_Substring/src/main.rs:82:7 [INFO] [stdout] | [INFO] [stdout] 82 | let s1 = String::from("eabaf"); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `lcs` [INFO] [stdout] --> Longest_Palindromic_Substring/src/main.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn lcs(s1: &String, s2: &String) -> (usize, usize) { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `Longest_Palindromic_Substring` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `longest_palindromic_substring` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> add_two_numbers/src/main.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `vec2List` should have a snake case name [INFO] [stdout] --> add_two_numbers/src/main.rs:71:4 [INFO] [stdout] | [INFO] [stdout] 71 | fn vec2List(vals: Vec) -> Option> { [INFO] [stdout] | ^^^^^^^^ help: convert the identifier to snake case: `vec2_list` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "72a237259bfc624cbadf41df15eb9f2fb27f68d53befe658025f113160b966b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "72a237259bfc624cbadf41df15eb9f2fb27f68d53befe658025f113160b966b8", kill_on_drop: false }` [INFO] [stdout] 72a237259bfc624cbadf41df15eb9f2fb27f68d53befe658025f113160b966b8