[INFO] cloning repository https://github.com/Mimikkk/leetcode-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mimikkk/leetcode-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMimikkk%2Fleetcode-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMimikkk%2Fleetcode-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 82521c78376c47e04c6acf2c2d5aca6a8eca41c4 [INFO] checking Mimikkk/leetcode-rust against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMimikkk%2Fleetcode-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Mimikkk/leetcode-rust on toolchain 195ad4830e11a544391abe296b146450dea8411b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Mimikkk/leetcode-rust [INFO] finished tweaking git repo https://github.com/Mimikkk/leetcode-rust [INFO] tweaked toml for git repo https://github.com/Mimikkk/leetcode-rust written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/Mimikkk/leetcode-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cd1fcdf40520d52f2cd9e4a48623e121433809a3883233c3c4e7063ce6b8f1ae [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" "cd1fcdf40520d52f2cd9e4a48623e121433809a3883233c3c4e7063ce6b8f1ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cd1fcdf40520d52f2cd9e4a48623e121433809a3883233c3c4e7063ce6b8f1ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd1fcdf40520d52f2cd9e4a48623e121433809a3883233c3c4e7063ce6b8f1ae", kill_on_drop: false }` [INFO] [stdout] cd1fcdf40520d52f2cd9e4a48623e121433809a3883233c3c4e7063ce6b8f1ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8d046cbbe99334d4db4e3059235eeb154b4ae745f6376f9e3c040ab9070bc230 [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" "8d046cbbe99334d4db4e3059235eeb154b4ae745f6376f9e3c040ab9070bc230", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking getrandom v0.2.2 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking leetcode v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::algorithms::is_isomorphic` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::algorithms::is_isomorphic; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::{}` [INFO] [stdout] --> src/data_structures/tree/nodebuilder.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::{}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::read_to_string` [INFO] [stdout] --> src/algorithms.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs::read_to_string; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Index` [INFO] [stdout] --> src/algorithms.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::ops::Index; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::BorrowMut` [INFO] [stdout] --> src/algorithms.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::borrow::BorrowMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str::Chars` [INFO] [stdout] --> src/ghost/secondbatch.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::str::Chars; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::algorithms::can_construct` [INFO] [stdout] --> src/ghost/secondbatch.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::algorithms::can_construct; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::algorithms::is_isomorphic` [INFO] [stdout] --> src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::algorithms::is_isomorphic; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::{}` [INFO] [stdout] --> src/data_structures/tree/nodebuilder.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::{}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs::read_to_string` [INFO] [stdout] --> src/algorithms.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs::read_to_string; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Index` [INFO] [stdout] --> src/algorithms.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::ops::Index; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::BorrowMut` [INFO] [stdout] --> src/algorithms.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::borrow::BorrowMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str::Chars` [INFO] [stdout] --> src/ghost/secondbatch.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::str::Chars; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::algorithms::can_construct` [INFO] [stdout] --> src/ghost/secondbatch.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::algorithms::can_construct; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `val` is never read [INFO] [stdout] --> src/ghost/firstbatch.rs:46:14 [INFO] [stdout] | [INFO] [stdout] 46 | let (mut val, mut carry) = (0, false); [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 `current` is never read [INFO] [stdout] --> src/ghost/firstbatch.rs:122:40 [INFO] [stdout] | [INFO] [stdout] 122 | let (mut result, mut previous, mut current) = (0, 0, 0); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `mid` is never read [INFO] [stdout] --> src/ghost/secondbatch.rs:8:13 [INFO] [stdout] | [INFO] [stdout] 8 | let mut mid: i64 = 0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/ghost/secondbatch.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | for (i, c) in s.clone().into_iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n1` [INFO] [stdout] --> src/ghost/secondbatch.rs:112:19 [INFO] [stdout] | [INFO] [stdout] 112 | (Some(n1), Some(n2)) => {} [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n2` [INFO] [stdout] --> src/ghost/secondbatch.rs:112:29 [INFO] [stdout] | [INFO] [stdout] 112 | (Some(n1), Some(n2)) => {} [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/utils.rs:14:13 [INFO] [stdout] | [INFO] [stdout] 14 | let mut ret = self.to_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: value assigned to `val` is never read [INFO] [stdout] --> src/ghost/firstbatch.rs:46:14 [INFO] [stdout] | [INFO] [stdout] 46 | let (mut val, mut carry) = (0, false); [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 `current` is never read [INFO] [stdout] --> src/ghost/firstbatch.rs:122:40 [INFO] [stdout] | [INFO] [stdout] 122 | let (mut result, mut previous, mut current) = (0, 0, 0); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `mid` is never read [INFO] [stdout] --> src/ghost/secondbatch.rs:8:13 [INFO] [stdout] | [INFO] [stdout] 8 | let mut mid: i64 = 0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/ghost/secondbatch.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | for (i, c) in s.clone().into_iter().enumerate() { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n1` [INFO] [stdout] --> src/ghost/secondbatch.rs:112:19 [INFO] [stdout] | [INFO] [stdout] 112 | (Some(n1), Some(n2)) => {} [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n2` [INFO] [stdout] --> src/ghost/secondbatch.rs:112:29 [INFO] [stdout] | [INFO] [stdout] 112 | (Some(n1), Some(n2)) => {} [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms.rs:64:17 [INFO] [stdout] | [INFO] [stdout] 64 | pub fn two_sum2(mut nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ghost/firstbatch.rs:4:16 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn two_sum(mut nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/utils.rs:14:13 [INFO] [stdout] | [INFO] [stdout] 14 | let mut ret = self.to_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: variable does not need to be mutable [INFO] [stdout] --> src/algorithms.rs:64:17 [INFO] [stdout] | [INFO] [stdout] 64 | pub fn two_sum2(mut nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ghost/firstbatch.rs:4:16 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn two_sum(mut nums: Vec, target: i32) -> Vec { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.40s [INFO] running `Command { std: "docker" "inspect" "8d046cbbe99334d4db4e3059235eeb154b4ae745f6376f9e3c040ab9070bc230", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8d046cbbe99334d4db4e3059235eeb154b4ae745f6376f9e3c040ab9070bc230", kill_on_drop: false }` [INFO] [stdout] 8d046cbbe99334d4db4e3059235eeb154b4ae745f6376f9e3c040ab9070bc230