[INFO] cloning repository https://github.com/takus69/ahc059
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/takus69/ahc059" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakus69%2Fahc059", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakus69%2Fahc059'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00a5981687d202d028fa9f05e2ae88982ac3ab78
[INFO] checking takus69/ahc059 against try#3857be5045fe74bd0f296f6f4c23db10f8857f73 for pr-156807
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakus69%2Fahc059" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/takus69/ahc059
[INFO] finished tweaking git repo https://github.com/takus69/ahc059
[INFO] tweaked toml for git repo https://github.com/takus69/ahc059 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/takus69/ahc059 on toolchain 3857be5045fe74bd0f296f6f4c23db10f8857f73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/takus69/ahc059 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" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking takus69/ahc059 against try#3857be5045fe74bd0f296f6f4c23db10f8857f73 for pr-156807
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakus69%2Fahc059" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/takus69/ahc059
[INFO] finished tweaking git repo https://github.com/takus69/ahc059
[INFO] tweaked toml for git repo https://github.com/takus69/ahc059 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/takus69/ahc059 on toolchain 3857be5045fe74bd0f296f6f4c23db10f8857f73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/takus69/ahc059 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" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proconio v0.4.5
[INFO] [stderr]   Downloaded ac-library-rs v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ded36aecb4f41e0fb87dc2e82fb1ff699be5bac2b463207a5d9d5b3ed2c6a08
[INFO] running `Command { std: "docker" "start" "-a" "1ded36aecb4f41e0fb87dc2e82fb1ff699be5bac2b463207a5d9d5b3ed2c6a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ded36aecb4f41e0fb87dc2e82fb1ff699be5bac2b463207a5d9d5b3ed2c6a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ded36aecb4f41e0fb87dc2e82fb1ff699be5bac2b463207a5d9d5b3ed2c6a08", kill_on_drop: false }`
[INFO] [stdout] 1ded36aecb4f41e0fb87dc2e82fb1ff699be5bac2b463207a5d9d5b3ed2c6a08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+3857be5045fe74bd0f296f6f4c23db10f8857f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d35144af74bb6c8a68cc89ee1da636f90cefd60922eda26e76f47907cdb411fa
[INFO] running `Command { std: "docker" "start" "-a" "d35144af74bb6c8a68cc89ee1da636f90cefd60922eda26e76f47907cdb411fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling zerocopy v0.8.33
[INFO] [stderr]     Checking proconio v0.4.5
[INFO] [stderr]     Checking ac-library-rs v0.1.1
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking ahc059 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/main.rs:3:34
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{BTreeMap, HashMap, VecDeque};
[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: `thread_rng`
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand::{thread_rng, Rng, SeedableRng};
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/main.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashMap`
[INFO] [stdout]  --> src/main.rs:3:34
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{BTreeMap, HashMap, VecDeque};
[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: `thread_rng`
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | use rand::{thread_rng, Rng, SeedableRng};
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/main.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:201:17
[INFO] [stdout]     |
[INFO] [stdout] 201 |             let mut action = "";
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `action`
[INFO] [stdout]    --> src/main.rs:201:17
[INFO] [stdout]     |
[INFO] [stdout] 201 |             let mut action = "";
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_action`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `after`
[INFO] [stdout]    --> src/main.rs:218:25
[INFO] [stdout]     |
[INFO] [stdout] 218 |                     let after = self.compute_total_distance(&order, &pairs);
[INFO] [stdout]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_after`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `before`
[INFO] [stdout]    --> src/main.rs:235:21
[INFO] [stdout]     |
[INFO] [stdout] 235 |                 let before = current_score;
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_before`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]    --> src/main.rs:200:29
[INFO] [stdout]     |
[INFO] [stdout] 200 |             let mut delta = 0isize;
[INFO] [stdout]     |                             ^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 212 |                 delta = self.compute_swap_delta(&order, &pairs, i, j);
[INFO] [stdout]     |                 ----------------------------------------------------- `delta` 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: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:407:13
[INFO] [stdout]     |
[INFO] [stdout] 407 |         let mut cur = (0, 0);
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:408:13
[INFO] [stdout]     |
[INFO] [stdout] 408 |         let mut pos_map = |idx: usize, ord: &[usize]| -> (Pos, Pos) {
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur`
[INFO] [stdout]    --> src/main.rs:407:13
[INFO] [stdout]     |
[INFO] [stdout] 407 |         let mut cur = (0, 0);
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cur`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:201:17
[INFO] [stdout]     |
[INFO] [stdout] 201 |             let mut action = "";
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `action`
[INFO] [stdout]    --> src/main.rs:201:17
[INFO] [stdout]     |
[INFO] [stdout] 201 |             let mut action = "";
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_action`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `after`
[INFO] [stdout]    --> src/main.rs:218:25
[INFO] [stdout]     |
[INFO] [stdout] 218 |                     let after = self.compute_total_distance(&order, &pairs);
[INFO] [stdout]     |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_after`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `before`
[INFO] [stdout]    --> src/main.rs:235:21
[INFO] [stdout]     |
[INFO] [stdout] 235 |                 let before = current_score;
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_before`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `delta` is never read
[INFO] [stdout]    --> src/main.rs:200:29
[INFO] [stdout]     |
[INFO] [stdout] 200 |             let mut delta = 0isize;
[INFO] [stdout]     |                             ^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 212 |                 delta = self.compute_swap_delta(&order, &pairs, i, j);
[INFO] [stdout]     |                 ----------------------------------------------------- `delta` 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: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:407:13
[INFO] [stdout]     |
[INFO] [stdout] 407 |         let mut cur = (0, 0);
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:408:13
[INFO] [stdout]     |
[INFO] [stdout] 408 |         let mut pos_map = |idx: usize, ord: &[usize]| -> (Pos, Pos) {
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cur`
[INFO] [stdout]    --> src/main.rs:407:13
[INFO] [stdout]     |
[INFO] [stdout] 407 |         let mut cur = (0, 0);
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cur`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.08s
[INFO] running `Command { std: "docker" "inspect" "d35144af74bb6c8a68cc89ee1da636f90cefd60922eda26e76f47907cdb411fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d35144af74bb6c8a68cc89ee1da636f90cefd60922eda26e76f47907cdb411fa", kill_on_drop: false }`
[INFO] [stdout] d35144af74bb6c8a68cc89ee1da636f90cefd60922eda26e76f47907cdb411fa
