[INFO] cloning repository https://github.com/ransherraj/Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ransherraj/Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fransherraj%2FRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fransherraj%2FRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01ff246573f15e7e590b01d90bdeb8f0687cdc19
[INFO] checking ransherraj/Rust against try#4907eac94165faff6c5e5e015670b1c584275f7b for pr-154149
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fransherraj%2FRust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ransherraj/Rust
[INFO] finished tweaking git repo https://github.com/ransherraj/Rust
[INFO] tweaked toml for git repo https://github.com/ransherraj/Rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ransherraj/Rust on toolchain 4907eac94165faff6c5e5e015670b1c584275f7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4907eac94165faff6c5e5e015670b1c584275f7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ransherraj/Rust 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" "+4907eac94165faff6c5e5e015670b1c584275f7b" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking ransherraj/Rust against try#4907eac94165faff6c5e5e015670b1c584275f7b for pr-154149
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fransherraj%2FRust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ransherraj/Rust
[INFO] finished tweaking git repo https://github.com/ransherraj/Rust
[INFO] tweaked toml for git repo https://github.com/ransherraj/Rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ransherraj/Rust on toolchain 4907eac94165faff6c5e5e015670b1c584275f7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4907eac94165faff6c5e5e015670b1c584275f7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ransherraj/Rust 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" "+4907eac94165faff6c5e5e015670b1c584275f7b" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+4907eac94165faff6c5e5e015670b1c584275f7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b630d19213f8a213a2bfaace482ba6f0dea2372dca819790a5b4de6fb7b889c
[INFO] running `Command { std: "docker" "start" "-a" "9b630d19213f8a213a2bfaace482ba6f0dea2372dca819790a5b4de6fb7b889c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b630d19213f8a213a2bfaace482ba6f0dea2372dca819790a5b4de6fb7b889c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b630d19213f8a213a2bfaace482ba6f0dea2372dca819790a5b4de6fb7b889c", kill_on_drop: false }`
[INFO] [stdout] 9b630d19213f8a213a2bfaace482ba6f0dea2372dca819790a5b4de6fb7b889c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+4907eac94165faff6c5e5e015670b1c584275f7b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1281f20484bdce99efa3b7952ef2b62a62306e17e91e12a3e6cd2d86a1c6893
[INFO] running `Command { std: "docker" "start" "-a" "f1281f20484bdce99efa3b7952ef2b62a62306e17e91e12a3e6cd2d86a1c6893", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking rand_core v0.9.0-alpha.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.9.0-alpha.2
[INFO] [stderr]     Checking rand v0.9.0-alpha.2
[INFO] [stderr]     Checking cargo_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `io`
[INFO] [stdout]  --> src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{io, cmp::Ordering};
[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: `io`
[INFO] [stdout]  --> src/main.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{io, cmp::Ordering};
[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: `cmp::Ordering`
[INFO] [stdout]  --> src/modules/input.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io, cmp::Ordering};
[INFO] [stdout]   |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arrays::*`
[INFO] [stdout]   --> src/modules/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use arrays::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `strings::*`
[INFO] [stdout]   --> src/modules/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use strings::*;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `output::*`
[INFO] [stdout]   --> src/modules/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use output::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `randomfind::*`
[INFO] [stdout]   --> src/modules/mod.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub use randomfind::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cmp::Ordering`
[INFO] [stdout]  --> src/modules/input.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io, cmp::Ordering};
[INFO] [stdout]   |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arrays::*`
[INFO] [stdout]   --> src/modules/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use arrays::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `strings::*`
[INFO] [stdout]   --> src/modules/mod.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use strings::*;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `output::*`
[INFO] [stdout]   --> src/modules/mod.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub use output::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `randomfind::*`
[INFO] [stdout]   --> src/modules/mod.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub use randomfind::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]   --> src/modules/output.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         for row in two{
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `row`
[INFO] [stdout]   --> src/modules/output.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         for row in two{
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_row`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_2d_array` is never used
[INFO] [stdout]  --> src/modules/output.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn print_2d_array(arr:&[Vec<i32>]){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_1d_array` is never used
[INFO] [stdout]  --> src/modules/output.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn print_1d_array(arr:&[i32]){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_3d_array` is never used
[INFO] [stdout]   --> src/modules/output.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn print_3d_array(arr:&[Vec<Vec<i32>>]){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_string` is never used
[INFO] [stdout]  --> src/modules/conversions.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn to_string(inp:i32)->String{
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_2d_array` is never used
[INFO] [stdout]  --> src/modules/output.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn print_2d_array(arr:&[Vec<i32>]){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_1d_array` is never used
[INFO] [stdout]  --> src/modules/output.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn print_1d_array(arr:&[i32]){
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_3d_array` is never used
[INFO] [stdout]   --> src/modules/output.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn print_3d_array(arr:&[Vec<Vec<i32>>]){
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_string` is never used
[INFO] [stdout]  --> src/modules/conversions.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn to_string(inp:i32)->String{
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `Command { std: "docker" "inspect" "f1281f20484bdce99efa3b7952ef2b62a62306e17e91e12a3e6cd2d86a1c6893", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1281f20484bdce99efa3b7952ef2b62a62306e17e91e12a3e6cd2d86a1c6893", kill_on_drop: false }`
[INFO] [stdout] f1281f20484bdce99efa3b7952ef2b62a62306e17e91e12a3e6cd2d86a1c6893