[INFO] cloning repository https://github.com/imtherealnaska/leetcodesolv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imtherealnaska/leetcodesolv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimtherealnaska%2Fleetcodesolv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimtherealnaska%2Fleetcodesolv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0bb8b8a72f151f77822459071a95a8499f1fc79
[INFO] checking imtherealnaska/leetcodesolv against master#f7b43542838f0a4a6cfdb17fbeadf45002042a77 for pr-138499
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimtherealnaska%2Fleetcodesolv" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/imtherealnaska/leetcodesolv on toolchain f7b43542838f0a4a6cfdb17fbeadf45002042a77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/imtherealnaska/leetcodesolv
[INFO] finished tweaking git repo https://github.com/imtherealnaska/leetcodesolv
[INFO] tweaked toml for git repo https://github.com/imtherealnaska/leetcodesolv written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/imtherealnaska/leetcodesolv already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47abfd90960c1449cd620d4873e25206bd73e6c8b456dc47d17dc2005c20d7a4
[INFO] running `Command { std: "docker" "start" "-a" "47abfd90960c1449cd620d4873e25206bd73e6c8b456dc47d17dc2005c20d7a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47abfd90960c1449cd620d4873e25206bd73e6c8b456dc47d17dc2005c20d7a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47abfd90960c1449cd620d4873e25206bd73e6c8b456dc47d17dc2005c20d7a4", kill_on_drop: false }`
[INFO] [stdout] 47abfd90960c1449cd620d4873e25206bd73e6c8b456dc47d17dc2005c20d7a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e34d1841dc45cc9dc9184413adefb3638470b16833e433315f549e59a88bcda4
[INFO] running `Command { std: "docker" "start" "-a" "e34d1841dc45cc9dc9184413adefb3638470b16833e433315f549e59a88bcda4", kill_on_drop: false }`
[INFO] [stderr]     Checking hack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/daily_problems/vowel_replace.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/daily_problems/vowel_replace.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/daily_problems/vowel_replace.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]   --> src/daily_problems/find_length_of_longest_common_prefix_med.rs:32:29
[INFO] [stdout]    |
[INFO] [stdout] 32 |                 if let Some(p) = prefixes.get(&i) {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]  --> src/daily_problems/matrix_problems/sliding_puzzle_hard.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn sliding_puzzle(board : Vec<Vec<i32>>) -> i32  {
[INFO] [stdout]   |                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/daily_problems/max_average_pass_ratio.rs:3:31
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn max_average_pass_ratio(mut classes: Vec<Vec<i32>>, extra_students: i32) -> f64 {
[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 variable: `n`
[INFO] [stdout]  --> src/daily_problems/max_k_div_components_hard.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     n: i32,
[INFO] [stdout]   |     ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `edges`
[INFO] [stdout]  --> src/daily_problems/max_k_div_components_hard.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     edges: Vec<Vec<i32>>,
[INFO] [stdout]   |     ^^^^^ help: if this is intentional, prefix it with an underscore: `_edges`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `values`
[INFO] [stdout]  --> src/daily_problems/max_k_div_components_hard.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     values: Vec<i32>,
[INFO] [stdout]   |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_values`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]  --> src/daily_problems/max_k_div_components_hard.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     k: i32,
[INFO] [stdout]   |     ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]  --> src/daily_problems/max_unique_substring_dfs_med.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let n = chars.len();
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ratio_array`
[INFO] [stdout]   --> src/daily_problems/minimized_maximum_of_products_med.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let ratio_array = calculate_ratio_array(quantities);
[INFO] [stdout]    |         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ratio_array`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/daily_problems/minimized_maximum_of_products_med.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn another_tricky(n: i32, quantities: Vec<i32>) -> i32 {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `quantities`
[INFO] [stdout]   --> src/daily_problems/minimized_maximum_of_products_med.rs:33:26
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn calculate_ratio_array(quantities: Vec<i32>) -> Vec<i32> {
[INFO] [stdout]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_quantities`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nums`
[INFO] [stdout]  --> src/daily_problems/results_array.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn results_array(nums: Vec<i32>, k: i32) -> Vec<i32> {
[INFO] [stdout]   |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/daily_problems/vowel_replace.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ret_1`
[INFO] [stdout]    --> src/daily_problems/circular_deque_med.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let ret_1: bool = obj.insert_front(value);
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_ret_1`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hack` (bin "hack"); 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/f7b43542838f0a4a6cfdb17fbeadf45002042a77/bin/rustc --crate-name hack --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=f57dcf44d4783d70 -C extra-filename=-4c1b001e021a3f71 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 0)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hack` (bin "hack" test); 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/f7b43542838f0a4a6cfdb17fbeadf45002042a77/bin/rustc --crate-name hack --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=7c6e253c9514a57b -C extra-filename=-ce8c776941813987 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 0)
[INFO] running `Command { std: "docker" "inspect" "e34d1841dc45cc9dc9184413adefb3638470b16833e433315f549e59a88bcda4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e34d1841dc45cc9dc9184413adefb3638470b16833e433315f549e59a88bcda4", kill_on_drop: false }`
[INFO] [stdout] e34d1841dc45cc9dc9184413adefb3638470b16833e433315f549e59a88bcda4