[INFO] updating cached repository https://github.com/ityy/rust_leet_code
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 800474f48127d0f3af67311c6cbb77ff76bcd076
[INFO] checking ityy/rust_leet_code against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fityy%2Frust_leet_code" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ityy/rust_leet_code 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/ityy/rust_leet_code
[INFO] finished tweaking git repo https://github.com/ityy/rust_leet_code
[INFO] tweaked toml for git repo https://github.com/ityy/rust_leet_code written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/ityy/rust_leet_code 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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] f5f1338a0b1c2b3461cbca9531cb46fa44e7f1b8edecfbd826174550c18cb618
[INFO] running `"docker" "start" "-a" "f5f1338a0b1c2b3461cbca9531cb46fa44e7f1b8edecfbd826174550c18cb618"`
[INFO] [stderr]     Checking rust_leet_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/sn1_1_100/t2_add_two_numbers.rs:28:19
[INFO] [stderr]    |
[INFO] [stderr] 28 |         l1_num += (l.val as u128 * a);
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/sn1_1_100/t2_add_two_numbers.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |         l2_num += (l.val as u128 * a);
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/sn1_1_100/t2_add_two_numbers.rs:28:19
[INFO] [stderr]    |
[INFO] [stderr] 28 |         l1_num += (l.val as u128 * a);
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/sn1_1_100/t2_add_two_numbers.rs:34:19
[INFO] [stderr]    |
[INFO] [stderr] 34 |         l2_num += (l.val as u128 * a);
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/sn1_1_100/t2_add_two_numbers.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let mut result = ListNode::new(num as i32);
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `two_sum`
[INFO] [stderr]  --> src/sn1_1_100/t1_two_sum.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `two_sum2`
[INFO] [stderr]   --> src/sn1_1_100/t1_two_sum.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn two_sum2(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/sn1_1_100/t2_add_two_numbers.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     fn new(val: i32) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_two_numbers1`
[INFO] [stderr]   --> src/sn1_1_100/t2_add_two_numbers.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn add_two_numbers1(l1: Option<Box<ListNode>>, l2: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_two_numbers`
[INFO] [stderr]   --> src/sn1_1_100/t2_add_two_numbers.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn add_two_numbers(l1: Option<Box<ListNode>>, l2: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/sn1_1_100/t2_add_two_numbers.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let mut result = ListNode::new(num as i32);
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `two_sum`
[INFO] [stderr]  --> src/sn1_1_100/t1_two_sum.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stderr]   |        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `two_sum2`
[INFO] [stderr]   --> src/sn1_1_100/t1_two_sum.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn two_sum2(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "f5f1338a0b1c2b3461cbca9531cb46fa44e7f1b8edecfbd826174550c18cb618"`
[INFO] running `"docker" "rm" "-f" "f5f1338a0b1c2b3461cbca9531cb46fa44e7f1b8edecfbd826174550c18cb618"`
[INFO] [stdout] f5f1338a0b1c2b3461cbca9531cb46fa44e7f1b8edecfbd826174550c18cb618