[INFO] cloning repository https://github.com/quocbaodo205/rust_algo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quocbaodo205/rust_algo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquocbaodo205%2Frust_algo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquocbaodo205%2Frust_algo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7aeced93fb141bb2e91dce7477d5d12305c3639
[INFO] checking quocbaodo205/rust_algo against try#3f7e3b175fda7edbf81081bcd9b91b73f2f7993f for pr-156157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquocbaodo205%2Frust_algo" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/quocbaodo205/rust_algo
[INFO] finished tweaking git repo https://github.com/quocbaodo205/rust_algo
[INFO] tweaked toml for git repo https://github.com/quocbaodo205/rust_algo written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/quocbaodo205/rust_algo on toolchain 3f7e3b175fda7edbf81081bcd9b91b73f2f7993f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f7e3b175fda7edbf81081bcd9b91b73f2f7993f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/quocbaodo205/rust_algo 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" "+3f7e3b175fda7edbf81081bcd9b91b73f2f7993f" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3f7e3b175fda7edbf81081bcd9b91b73f2f7993f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 934f1b8d09326cc79bb080417e211f07260546840cb1e28103f7dbef23175a42
[INFO] running `Command { std: "docker" "start" "-a" "934f1b8d09326cc79bb080417e211f07260546840cb1e28103f7dbef23175a42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "934f1b8d09326cc79bb080417e211f07260546840cb1e28103f7dbef23175a42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "934f1b8d09326cc79bb080417e211f07260546840cb1e28103f7dbef23175a42", kill_on_drop: false }`
[INFO] [stdout] 934f1b8d09326cc79bb080417e211f07260546840cb1e28103f7dbef23175a42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+3f7e3b175fda7edbf81081bcd9b91b73f2f7993f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b8162680dfefd4cca6bce813b2b529284be53ed03b9358e36cdb340fb027045
[INFO] running `Command { std: "docker" "start" "-a" "4b8162680dfefd4cca6bce813b2b529284be53ed03b9358e36cdb340fb027045", kill_on_drop: false }`
[INFO] [stderr]     Checking cp_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:1:71
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{stdin, stdout, BufReader, BufWriter, Stdin, StdoutLock, Write};
[INFO] [stdout]   |                                                                       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/main.rs:1:71
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{stdin, stdout, BufReader, BufWriter, Stdin, StdoutLock, Write};
[INFO] [stdout]   |                                                                       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `isOn`
[INFO] [stdout]   --> src/utils.rs:82:14
[INFO] [stdout]    |
[INFO] [stdout] 82 | macro_rules! isOn {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `turnOn`
[INFO] [stdout]   --> src/utils.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 | macro_rules! turnOn {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `isOn`
[INFO] [stdout]   --> src/utils.rs:82:14
[INFO] [stdout]    |
[INFO] [stdout] 82 | macro_rules! isOn {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `turnOn`
[INFO] [stdout]   --> src/utils.rs:88:14
[INFO] [stdout]    |
[INFO] [stdout] 88 | macro_rules! turnOn {
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/utils.rs:467:88
[INFO] [stdout]     |
[INFO] [stdout] 467 | pub fn read_edge_list(m: usize, line: &mut String, reader: &mut BufReader<Stdin>) -> V<(UU)> {
[INFO] [stdout]     |                                                                                        ^  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 467 - pub fn read_edge_list(m: usize, line: &mut String, reader: &mut BufReader<Stdin>) -> V<(UU)> {
[INFO] [stdout] 467 + pub fn read_edge_list(m: usize, line: &mut String, reader: &mut BufReader<Stdin>) -> V<UU > {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/utils.rs:467:88
[INFO] [stdout]     |
[INFO] [stdout] 467 | pub fn read_edge_list(m: usize, line: &mut String, reader: &mut BufReader<Stdin>) -> V<(UU)> {
[INFO] [stdout]     |                                                                                        ^  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 467 - pub fn read_edge_list(m: usize, line: &mut String, reader: &mut BufReader<Stdin>) -> V<(UU)> {
[INFO] [stdout] 467 + pub fn read_edge_list(m: usize, line: &mut String, reader: &mut BufReader<Stdin>) -> V<UU > {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/utils.rs:229:29
[INFO] [stdout]     |
[INFO] [stdout] 229 |     (start..=end).for_each(|i| {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `contrib` is never read
[INFO] [stdout]    --> src/utils.rs:236:9
[INFO] [stdout]     |
[INFO] [stdout] 236 |         contrib -= f(start);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 241 |         contrib += f(end);
[INFO] [stdout]     |         ----------------- `contrib` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `contrib` is never read
[INFO] [stdout]    --> src/utils.rs:241:9
[INFO] [stdout]     |
[INFO] [stdout] 241 |         contrib += f(end);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/utils.rs:229:29
[INFO] [stdout]     |
[INFO] [stdout] 229 |     (start..=end).for_each(|i| {
[INFO] [stdout]     |                             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `contrib` is never read
[INFO] [stdout]    --> src/utils.rs:236:9
[INFO] [stdout]     |
[INFO] [stdout] 236 |         contrib -= f(start);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 241 |         contrib += f(end);
[INFO] [stdout]     |         ----------------- `contrib` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `contrib` is never read
[INFO] [stdout]    --> src/utils.rs:241:9
[INFO] [stdout]     |
[INFO] [stdout] 241 |         contrib += f(end);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `out`
[INFO] [stdout]   --> src/main.rs:20:60
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn solve(reader: &mut BufReader<Stdin>, line: &mut String, out: &mut BufWriter<StdoutLock>) {
[INFO] [stdout]    |                                                            ^^^ help: if this is intentional, prefix it with an underscore: `_out`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `VV` is never used
[INFO] [stdout]   --> src/main.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | type VV<T> = Vec<Vec<T>>;
[INFO] [stdout]    |      ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `US` is never used
[INFO] [stdout]   --> src/main.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | type US = usize;
[INFO] [stdout]    |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `VV` is never used
[INFO] [stdout]    --> src/utils.rs:276:6
[INFO] [stdout]     |
[INFO] [stdout] 276 | type VV<T> = V<V<T>>;
[INFO] [stdout]     |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Set` is never used
[INFO] [stdout]    --> src/utils.rs:277:6
[INFO] [stdout]     |
[INFO] [stdout] 277 | type Set<T> = BTreeSet<T>;
[INFO] [stdout]     |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `UUU` is never used
[INFO] [stdout]    --> src/utils.rs:281:6
[INFO] [stdout]     |
[INFO] [stdout] 281 | type UUU = (US, US, US);
[INFO] [stdout]     |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `out`
[INFO] [stdout]   --> src/main.rs:20:60
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn solve(reader: &mut BufReader<Stdin>, line: &mut String, out: &mut BufWriter<StdoutLock>) {
[INFO] [stdout]    |                                                            ^^^ help: if this is intentional, prefix it with an underscore: `_out`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `VV` is never used
[INFO] [stdout]   --> src/main.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | type VV<T> = Vec<Vec<T>>;
[INFO] [stdout]    |      ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `US` is never used
[INFO] [stdout]   --> src/main.rs:18:6
[INFO] [stdout]    |
[INFO] [stdout] 18 | type US = usize;
[INFO] [stdout]    |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `VV` is never used
[INFO] [stdout]    --> src/utils.rs:276:6
[INFO] [stdout]     |
[INFO] [stdout] 276 | type VV<T> = V<V<T>>;
[INFO] [stdout]     |      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Set` is never used
[INFO] [stdout]    --> src/utils.rs:277:6
[INFO] [stdout]     |
[INFO] [stdout] 277 | type Set<T> = BTreeSet<T>;
[INFO] [stdout]     |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `UUU` is never used
[INFO] [stdout]    --> src/utils.rs:281:6
[INFO] [stdout]     |
[INFO] [stdout] 281 | type UUU = (US, US, US);
[INFO] [stdout]     |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "4b8162680dfefd4cca6bce813b2b529284be53ed03b9358e36cdb340fb027045", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b8162680dfefd4cca6bce813b2b529284be53ed03b9358e36cdb340fb027045", kill_on_drop: false }`
[INFO] [stdout] 4b8162680dfefd4cca6bce813b2b529284be53ed03b9358e36cdb340fb027045