[INFO] cloning repository https://github.com/dayang/leetcode-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dayang/leetcode-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdayang%2Fleetcode-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdayang%2Fleetcode-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3871a38d4f6951664c216e4c43bcaec88938fc41
[INFO] testing dayang/leetcode-rs against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdayang%2Fleetcode-rs" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dayang/leetcode-rs on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dayang/leetcode-rs
[INFO] finished tweaking git repo https://github.com/dayang/leetcode-rs
[INFO] tweaked toml for git repo https://github.com/dayang/leetcode-rs written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/dayang/leetcode-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c53ccadf5feec4d1ef88ac937a6051c00ad3b4a7c3c7df522663ada8309294c
[INFO] running `Command { std: "docker" "start" "-a" "5c53ccadf5feec4d1ef88ac937a6051c00ad3b4a7c3c7df522663ada8309294c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c53ccadf5feec4d1ef88ac937a6051c00ad3b4a7c3c7df522663ada8309294c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c53ccadf5feec4d1ef88ac937a6051c00ad3b4a7c3c7df522663ada8309294c", kill_on_drop: false }`
[INFO] [stdout] 5c53ccadf5feec4d1ef88ac937a6051c00ad3b4a7c3c7df522663ada8309294c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8bbf2d131e5ca24341c7f1b4155abc7b4d222e154caba41e4a7b4e2a0142064
[INFO] running `Command { std: "docker" "start" "-a" "a8bbf2d131e5ca24341c7f1b4155abc7b4d222e154caba41e4a7b4e2a0142064", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling min-cost-climbing-stairs v0.1.0 (/opt/rustwide/workdir/min-cost-climbing-stairs)
[INFO] [stderr]    Compiling trapping-rain-water v0.1.0 (/opt/rustwide/workdir/trapping-rain-water)
[INFO] [stderr]    Compiling minimum-ascii-delete-sum-for-two-strings v0.1.0 (/opt/rustwide/workdir/minimum-ascii-delete-sum-for-two-strings)
[INFO] [stderr]    Compiling maximum-subarray v0.1.0 (/opt/rustwide/workdir/maximum-subarray)
[INFO] [stderr]    Compiling non-decreasing-array v0.1.0 (/opt/rustwide/workdir/non-decreasing-array)
[INFO] [stderr]    Compiling uncrossed-lines v0.1.0 (/opt/rustwide/workdir/uncrossed-lines)
[INFO] [stderr]    Compiling palindromic-substrings v0.1.0 (/opt/rustwide/workdir/palindromic-substrings)
[INFO] [stderr]    Compiling longest-common-subsequence v0.1.0 (/opt/rustwide/workdir/longest-common-subsequence)
[INFO] [stderr]    Compiling rotate-matrix-lcci v0.1.0 (/opt/rustwide/workdir/rotate-matrix-lcci)
[INFO] [stderr]    Compiling online-stock-span v0.1.0 (/opt/rustwide/workdir/online-stock-span)
[INFO] [stderr]    Compiling generate-parentheses v0.1.0 (/opt/rustwide/workdir/generate-parentheses)
[INFO] [stderr]    Compiling game-of-life v0.1.0 (/opt/rustwide/workdir/game-of-life)
[INFO] [stderr]    Compiling next-greater-element-ii v0.1.0 (/opt/rustwide/workdir/next-greater-element-ii)
[INFO] [stderr]    Compiling edit-distance v0.1.0 (/opt/rustwide/workdir/edit-distance)
[INFO] [stderr]    Compiling best-time-to-buy-and-sell-stock-ii v0.1.0 (/opt/rustwide/workdir/best-time-to-buy-and-sell-stock-ii)
[INFO] [stderr]    Compiling recover-binary-search-tree v0.1.0 (/opt/rustwide/workdir/recover-binary-search-tree)
[INFO] [stderr]    Compiling best-time-to-buy-and-sell-stock-with-transaction-fee v0.1.0 (/opt/rustwide/workdir/best-time-to-buy-and-sell-stock-with-transaction-fee)
[INFO] [stderr]    Compiling replace-words v0.1.0 (/opt/rustwide/workdir/replace-words)
[INFO] [stderr]    Compiling longest-substring-without-repeating-characters v0.1.0 (/opt/rustwide/workdir/longest-substring-without-repeating-characters)
[INFO] [stderr]    Compiling is-subsequence v0.1.0 (/opt/rustwide/workdir/is-subsequence)
[INFO] [stderr]    Compiling utf-8-validation v0.1.0 (/opt/rustwide/workdir/utf-8-validation)
[INFO] [stderr]    Compiling delete-operation-for-two-strings v0.1.0 (/opt/rustwide/workdir/delete-operation-for-two-strings)
[INFO] [stderr]    Compiling unique-binary-search-trees v0.1.0 (/opt/rustwide/workdir/unique-binary-search-trees)
[INFO] [stderr]    Compiling same-tree v0.1.0 (/opt/rustwide/workdir/same-tree)
[INFO] [stderr]    Compiling valid-number v0.1.0 (/opt/rustwide/workdir/valid-number)
[INFO] [stderr]    Compiling stone-game v0.1.0 (/opt/rustwide/workdir/stone-game)
[INFO] [stderr]    Compiling largest-rectangle-in-histogram v0.1.0 (/opt/rustwide/workdir/largest-rectangle-in-histogram)
[INFO] [stderr]    Compiling construct-binary-tree-from-preorder-and-inorder-traversal v0.1.0 (/opt/rustwide/workdir/construct-binary-tree-from-preorder-and-inorder-traversal)
[INFO] [stderr]    Compiling airplane-seat-assignment-probability v0.1.0 (/opt/rustwide/workdir/airplane-seat-assignment-probability)
[INFO] [stderr]    Compiling unique-binary-search-trees-ii v0.1.0 (/opt/rustwide/workdir/unique-binary-search-trees-ii)
[INFO] [stderr]    Compiling longest-valid-parentheses v0.1.0 (/opt/rustwide/workdir/longest-valid-parentheses)
[INFO] [stderr]    Compiling find-pivot-index v0.1.0 (/opt/rustwide/workdir/find-pivot-index)
[INFO] [stderr]    Compiling validate-binary-search-tree v0.1.0 (/opt/rustwide/workdir/validate-binary-search-tree)
[INFO] [stderr]    Compiling reverse-nodes-in-k-group v0.1.0 (/opt/rustwide/workdir/reverse-nodes-in-k-group)
[INFO] [stderr]    Compiling two-sum v0.1.0 (/opt/rustwide/workdir/two-sum)
[INFO] [stderr]    Compiling minimum-cost-tree-from-leaf-values v0.1.0 (/opt/rustwide/workdir/minimum-cost-tree-from-leaf-values)
[INFO] [stderr]    Compiling how-many-numbers-are-smaller-than-the-current-number v0.1.0 (/opt/rustwide/workdir/how-many-numbers-are-smaller-than-the-current-number)
[INFO] [stderr]    Compiling longest-increasing-subsequence v0.1.0 (/opt/rustwide/workdir/longest-increasing-subsequence)
[INFO] [stderr]    Compiling house-robber-ii v0.1.0 (/opt/rustwide/workdir/house-robber-ii)
[INFO] [stderr]    Compiling house-robber v0.1.0 (/opt/rustwide/workdir/house-robber)
[INFO] [stderr]    Compiling add-two-numbers v0.1.0 (/opt/rustwide/workdir/add-two-numbers)
[INFO] [stderr]    Compiling ji-qi-ren-de-yun-dong-fan-wei-lcof v0.1.0 (/opt/rustwide/workdir/ji-qi-ren-de-yun-dong-fan-wei-lcof)
[INFO] [stderr]    Compiling best-time-to-buy-and-sell-stock v0.1.0 (/opt/rustwide/workdir/best-time-to-buy-and-sell-stock)
[INFO] [stderr]    Compiling add-digits v0.1.0 (/opt/rustwide/workdir/add-digits)
[INFO] [stderr]    Compiling best-time-to-buy-and-sell-stock-with-cooldown v0.1.0 (/opt/rustwide/workdir/best-time-to-buy-and-sell-stock-with-cooldown)
[INFO] [stderr]    Compiling next-greater-element-i v0.1.0 (/opt/rustwide/workdir/next-greater-element-i)
[INFO] [stderr]    Compiling symmetric-tree v0.1.0 (/opt/rustwide/workdir/symmetric-tree)
[INFO] [stderr]    Compiling baseball-game v0.1.0 (/opt/rustwide/workdir/baseball-game)
[INFO] [stderr]    Compiling best-time-to-buy-and-sell-stock-iv v0.1.0 (/opt/rustwide/workdir/best-time-to-buy-and-sell-stock-iv)
[INFO] [stderr]    Compiling daily-temperatures v0.1.0 (/opt/rustwide/workdir/daily-temperatures)
[INFO] [stderr]    Compiling binary-search-tree-iterator v0.1.0 (/opt/rustwide/workdir/binary-search-tree-iterator)
[INFO] [stderr]    Compiling matrix-block-sum v0.1.0 (/opt/rustwide/workdir/matrix-block-sum)
[INFO] [stderr]    Compiling divisor-game v0.1.0 (/opt/rustwide/workdir/divisor-game)
[INFO] [stderr]    Compiling triangle v0.1.0 (/opt/rustwide/workdir/triangle)
[INFO] [stderr]    Compiling count-square-submatrices-with-all-ones v0.1.0 (/opt/rustwide/workdir/count-square-submatrices-with-all-ones)
[INFO] [stderr]    Compiling lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof v0.1.0 (/opt/rustwide/workdir/lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof)
[INFO] [stderr]    Compiling minimum-falling-path-sum v0.1.0 (/opt/rustwide/workdir/minimum-falling-path-sum)
[INFO] [stderr]    Compiling counting-bits v0.1.0 (/opt/rustwide/workdir/counting-bits)
[INFO] [stderr]    Compiling increasing-subsequences v0.1.0 (/opt/rustwide/workdir/increasing-subsequences)
[INFO] [stderr]    Compiling longest-word-in-dictionary v0.1.0 (/opt/rustwide/workdir/longest-word-in-dictionary)
[INFO] [stderr]    Compiling reverse-integer v0.1.0 (/opt/rustwide/workdir/reverse-integer)
[INFO] [stderr]    Compiling count-negative-numbers-in-a-sorted-matrix v0.1.0 (/opt/rustwide/workdir/count-negative-numbers-in-a-sorted-matrix)
[INFO] [stderr]    Compiling valid-anagram v0.1.0 (/opt/rustwide/workdir/valid-anagram)
[INFO] [stderr]    Compiling reverse-words-in-a-string v0.1.0 (/opt/rustwide/workdir/reverse-words-in-a-string)
[INFO] [stderr]    Compiling binary-tree-inorder-traversal v0.1.0 (/opt/rustwide/workdir/binary-tree-inorder-traversal)
[INFO] [stderr]    Compiling string-to-integer-atoi v0.1.0 (/opt/rustwide/workdir/string-to-integer-atoi)
[INFO] [stderr]    Compiling best-time-to-buy-and-sell-stock-iii v0.1.0 (/opt/rustwide/workdir/best-time-to-buy-and-sell-stock-iii)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> palindromic-substrings/src/main.rs:27:29
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn count_substrings(s: String) -> i32 {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `L` should have a snake case name
[INFO] [stdout]   --> count-negative-numbers-in-a-sorted-matrix/src/main.rs:54:38
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn solve(l: usize, r: usize, L: usize, R: usize, grid: &Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]    |                                      ^ help: convert the identifier to snake case: `l`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `R` should have a snake case name
[INFO] [stdout]   --> count-negative-numbers-in-a-sorted-matrix/src/main.rs:54:48
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn solve(l: usize, r: usize, L: usize, R: usize, grid: &Vec<Vec<i32>>) -> i32 {
[INFO] [stdout]    |                                                ^ help: convert the identifier to snake case: `r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arr`
[INFO] [stdout]   --> minimum-cost-tree-from-leaf-values/src/main.rs:34:33
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn mct_from_leaf_values(arr: Vec<i32>) -> i32 {
[INFO] [stdout]    |                                 ^^^ help: if this is intentional, prefix it with an underscore: `_arr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `head`
[INFO] [stdout]   --> reverse-nodes-in-k-group/src/main.rs:95:28
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn reverse_k_group(head: Option<Box<ListNode>>, k: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> reverse-nodes-in-k-group/src/main.rs:95:57
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn reverse_k_group(head: Option<Box<ListNode>>, k: i32) -> Option<Box<ListNode>> {
[INFO] [stdout]    |                                                         ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> reverse-nodes-in-k-group/src/main.rs:84:6
[INFO] [stdout]    |
[INFO] [stdout] 84 |   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: associated function is never used: `new`
[INFO] [stdout]   --> lian-biao-zhong-dao-shu-di-kge-jie-dian-lcof/src/main.rs:22:6
[INFO] [stdout]    |
[INFO] [stdout] 22 |   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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `trapping-rain-water`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name trapping_rain_water --edition=2018 trapping-rain-water/src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=9dea81107420b8f3 -C extra-filename=-9dea81107420b8f3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a8bbf2d131e5ca24341c7f1b4155abc7b4d222e154caba41e4a7b4e2a0142064", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8bbf2d131e5ca24341c7f1b4155abc7b4d222e154caba41e4a7b4e2a0142064", kill_on_drop: false }`
[INFO] [stdout] a8bbf2d131e5ca24341c7f1b4155abc7b4d222e154caba41e4a7b4e2a0142064
