[INFO] updating cached repository https://github.com/jit-y/leetcode-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/jit-y/leetcode-rs
[INFO] [stderr]    7145528..405b41f  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 405b41fb866d0bb7f6c8da1d28d3cfc7b8175e29
[INFO] checking jit-y/leetcode-rs against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjit-y%2Fleetcode-rs" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jit-y/leetcode-rs on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jit-y/leetcode-rs
[INFO] finished tweaking git repo https://github.com/jit-y/leetcode-rs
[INFO] tweaked toml for git repo https://github.com/jit-y/leetcode-rs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/jit-y/leetcode-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 15625174818e9e8afc8da4e2f7fd2d49911baf382f9b3afa5610355b92566454
[INFO] running `"docker" "start" "-a" "15625174818e9e8afc8da4e2f7fd2d49911baf382f9b3afa5610355b92566454"`
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> examples/remove_duplicates_from_sorted_list.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new(val: i32) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `remove_element_2`
[INFO] [stderr]  --> examples/remove_element.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn remove_element_2(nums: &mut Vec<i32>, val: i32) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `min_cost_climbing_stairs_2`
[INFO] [stderr]   --> examples/min_cost_climbling_stairs.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn min_cost_climbing_stairs_2(cost: Vec<i32>) -> i32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> examples/valid_parentheses.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Solution {}
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_valid`
[INFO] [stderr]  --> examples/valid_parentheses.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     pub fn is_valid(s: String) -> bool {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `head`
[INFO] [stderr]   --> examples/reverse_linked_list.rs:31:35
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn reverse_list_recursive(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stderr]    |                                   ^^^^ help: if this is intentional, prefix it with an underscore: `_head`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `reverse_list_recursive`
[INFO] [stderr]   --> examples/reverse_linked_list.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn reverse_list_recursive(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error[E0606]: casting `f32` as `i32` is invalid
[INFO] [stderr]  --> examples/count_primes.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 |         let l = (n as f32).sqrt().ceil() as i32;
[INFO] [stderr]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0606`.
[INFO] [stderr] error: could not compile `leetcode`.
[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] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> examples/remove_linked_list_elements.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn new(val: i32) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "15625174818e9e8afc8da4e2f7fd2d49911baf382f9b3afa5610355b92566454"`
[INFO] running `"docker" "rm" "-f" "15625174818e9e8afc8da4e2f7fd2d49911baf382f9b3afa5610355b92566454"`
[INFO] [stdout] 15625174818e9e8afc8da4e2f7fd2d49911baf382f9b3afa5610355b92566454