[INFO] updating cached repository https://github.com/ityy/rust_leet_code
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 800474f48127d0f3af67311c6cbb77ff76bcd076
[INFO] checking ityy/rust_leet_code against try#85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 for pr-73323
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fityy%2Frust_leet_code" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ityy/rust_leet_code on toolchain 85cc1486e1f000dce4bb8e1b3cfab2b654b102a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-8/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2b78243478713d0dcdd70fdbb3fa0e1ca46d907203b77d7dedd8e28a4f6e473
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a2b78243478713d0dcdd70fdbb3fa0e1ca46d907203b77d7dedd8e28a4f6e473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2b78243478713d0dcdd70fdbb3fa0e1ca46d907203b77d7dedd8e28a4f6e473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2b78243478713d0dcdd70fdbb3fa0e1ca46d907203b77d7dedd8e28a4f6e473", kill_on_drop: false }`
[INFO] [stdout] a2b78243478713d0dcdd70fdbb3fa0e1ca46d907203b77d7dedd8e28a4f6e473
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4e15b4cb191153d92b54f1a80dc1dbfebfb8fb6cbff954682e28f0116c142466
[INFO] running `Command { std: "docker" "start" "-a" "4e15b4cb191153d92b54f1a80dc1dbfebfb8fb6cbff954682e28f0116c142466", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_leet_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/sn1_1_100/t2_add_two_numbers.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |         l1_num += (l.val as u128 * a);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/sn1_1_100/t2_add_two_numbers.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |         l2_num += (l.val as u128 * a);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/sn1_1_100/t2_add_two_numbers.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |         l1_num += (l.val as u128 * a);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/sn1_1_100/t2_add_two_numbers.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |         l2_num += (l.val as u128 * a);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sn1_1_100/t2_add_two_numbers.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut result = ListNode::new(num as i32);
[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: function is never used: `two_sum`
[INFO] [stdout]  --> src/sn1_1_100/t1_two_sum.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `two_sum2`
[INFO] [stdout]   --> src/sn1_1_100/t1_two_sum.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn two_sum2(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/sn1_1_100/t2_add_two_numbers.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn new(val: i32) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_two_numbers1`
[INFO] [stdout]   --> src/sn1_1_100/t2_add_two_numbers.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn add_two_numbers1(l1: Option<Box<ListNode>>, l2: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_two_numbers`
[INFO] [stdout]   --> src/sn1_1_100/t2_add_two_numbers.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn add_two_numbers(l1: Option<Box<ListNode>>, l2: Option<Box<ListNode>>) -> Option<Box<ListNode>> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sn1_1_100/t2_add_two_numbers.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let mut result = ListNode::new(num as i32);
[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: function is never used: `two_sum`
[INFO] [stdout]  --> src/sn1_1_100/t1_two_sum.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `two_sum2`
[INFO] [stdout]   --> src/sn1_1_100/t1_two_sum.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn two_sum2(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "4e15b4cb191153d92b54f1a80dc1dbfebfb8fb6cbff954682e28f0116c142466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e15b4cb191153d92b54f1a80dc1dbfebfb8fb6cbff954682e28f0116c142466", kill_on_drop: false }`
[INFO] [stdout] 4e15b4cb191153d92b54f1a80dc1dbfebfb8fb6cbff954682e28f0116c142466