[INFO] updating cached repository https://github.com/fjhg19930505/rust_leetcode
[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] f14b48859b3344741819d05b3d8c71e0565f7ba9
[INFO] checking fjhg19930505/rust_leetcode against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffjhg19930505%2Frust_leetcode" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fjhg19930505/rust_leetcode on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/fjhg19930505/rust_leetcode
[INFO] finished tweaking git repo https://github.com/fjhg19930505/rust_leetcode
[INFO] tweaked toml for git repo https://github.com/fjhg19930505/rust_leetcode written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/fjhg19930505/rust_leetcode already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] ad84351ee671361ea1f5d9e079b6ff0cfdc5958809b28ef3ed3cd7f4310cc468
[INFO] running `"docker" "start" "-a" "ad84351ee671361ea1f5d9e079b6ff0cfdc5958809b28ef3ed3cd7f4310cc468"`
[INFO] [stderr]     Checking math v0.0.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking Study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/leetcode/tencent/my_atoi.rs:82:19
[INFO] [stderr]    |
[INFO] [stderr] 82 |         } else if (ch < '0' || ch > '9'){
[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 `if` condition
[INFO] [stderr]   --> src/leetcode/tencent/my_atoi.rs:91:21
[INFO] [stderr]    |
[INFO] [stderr] 91 |             else if (!has_op && ch != '0') {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `while` condition
[INFO] [stderr]   --> src/leetcode/tencent/longest_common_prefix.rs:17:10
[INFO] [stderr]    |
[INFO] [stderr] 17 |     while(i >= 0) {
[INFO] [stderr]    |          ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/leetcode/tencent/my_atoi.rs:82:19
[INFO] [stderr]    |
[INFO] [stderr] 82 |         } else if (ch < '0' || ch > '9'){
[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 `if` condition
[INFO] [stderr]   --> src/leetcode/tencent/my_atoi.rs:91:21
[INFO] [stderr]    |
[INFO] [stderr] 91 |             else if (!has_op && ch != '0') {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `while` condition
[INFO] [stderr]   --> src/leetcode/tencent/longest_common_prefix.rs:17:10
[INFO] [stderr]    |
[INFO] [stderr] 17 |     while(i >= 0) {
[INFO] [stderr]    |          ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `max_left` is never read
[INFO] [stderr]   --> src/leetcode/tencent/find_median_sorted_arrays.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |             let mut max_left: f64 = 0.0;
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `min_right` is never read
[INFO] [stderr]   --> src/leetcode/tencent/find_median_sorted_arrays.rs:66:17
[INFO] [stderr]    |
[INFO] [stderr] 66 |             let mut min_right: f64 = 0.0;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `best_two_sum`
[INFO] [stderr]   --> src/leetcode/tencent/two_sum.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn best_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: `longest_palindrome`
[INFO] [stderr]   --> src/leetcode/tencent/longest_palindrome.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn longest_palindrome(s: String) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `guess_number`
[INFO] [stderr]  --> src/normal_test/mod.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn guess_number() {
[INFO] [stderr]   |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Study` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `study`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `max_left` is never read
[INFO] [stderr]   --> src/leetcode/tencent/find_median_sorted_arrays.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |             let mut max_left: f64 = 0.0;
[INFO] [stderr]    |                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `min_right` is never read
[INFO] [stderr]   --> src/leetcode/tencent/find_median_sorted_arrays.rs:66:17
[INFO] [stderr]    |
[INFO] [stderr] 66 |             let mut min_right: f64 = 0.0;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `best_two_sum`
[INFO] [stderr]   --> src/leetcode/tencent/two_sum.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn best_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: `longest_palindrome`
[INFO] [stderr]   --> src/leetcode/tencent/longest_palindrome.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn longest_palindrome(s: String) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `guess_number`
[INFO] [stderr]  --> src/normal_test/mod.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn guess_number() {
[INFO] [stderr]   |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `Study` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `study`
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.58s
[INFO] running `"docker" "inspect" "ad84351ee671361ea1f5d9e079b6ff0cfdc5958809b28ef3ed3cd7f4310cc468"`
[INFO] running `"docker" "rm" "-f" "ad84351ee671361ea1f5d9e079b6ff0cfdc5958809b28ef3ed3cd7f4310cc468"`
[INFO] [stdout] ad84351ee671361ea1f5d9e079b6ff0cfdc5958809b28ef3ed3cd7f4310cc468