[INFO] cloning repository https://github.com/GnanaGanesh1999/rust-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/GnanaGanesh1999/rust-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGnanaGanesh1999%2Frust-poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGnanaGanesh1999%2Frust-poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f96c09b38d8f729d8e559f2b5e8357ebd36da2b
[INFO] checking GnanaGanesh1999/rust-poc against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGnanaGanesh1999%2Frust-poc" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/GnanaGanesh1999/rust-poc on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GnanaGanesh1999/rust-poc
[INFO] finished tweaking git repo https://github.com/GnanaGanesh1999/rust-poc
[INFO] tweaked toml for git repo https://github.com/GnanaGanesh1999/rust-poc written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/GnanaGanesh1999/rust-poc 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded signal-hook v0.3.9
[INFO] [stderr]   Downloaded crossterm_winapi v0.8.0
[INFO] [stderr]   Downloaded crossterm v0.21.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43276abc8d7fcee7f4bbe37278effe5d34483b47f7f89381975b5ca3636e3ace
[INFO] running `Command { std: "docker" "start" "-a" "43276abc8d7fcee7f4bbe37278effe5d34483b47f7f89381975b5ca3636e3ace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43276abc8d7fcee7f4bbe37278effe5d34483b47f7f89381975b5ca3636e3ace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43276abc8d7fcee7f4bbe37278effe5d34483b47f7f89381975b5ca3636e3ace", kill_on_drop: false }`
[INFO] [stdout] 43276abc8d7fcee7f4bbe37278effe5d34483b47f7f89381975b5ca3636e3ace
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c940befbec7f8aea30e9ece57f8625e2d742fea08799807ed7a9b902215d45d
[INFO] running `Command { std: "docker" "start" "-a" "3c940befbec7f8aea30e9ece57f8625e2d742fea08799807ed7a9b902215d45d", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking mars-rover v0.1.0 (/opt/rustwide/workdir/mars-rover)
[INFO] [stderr]     Checking shapes v0.1.0 (/opt/rustwide/workdir/shapes)
[INFO] [stderr]     Checking rectangle v0.1.0 (/opt/rustwide/workdir/rectangle)
[INFO] [stderr]     Checking ip_sniffer v0.1.0 (/opt/rustwide/workdir/ip_sniffer)
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking tic-tac-toe v0.1.0 (/opt/rustwide/workdir/tic-tac-toe)
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stdout] warning: unused import: `crate::game_util::Player`
[INFO] [stdout]  --> tic-tac-toe/src/tic_tac_toe.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::game_util::Player;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> tic-tac-toe/src/tic_tac_toe.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{stdin, Error};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> rectangle/src/lib.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Rectangle {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `area`, and `perimeter` are never used
[INFO] [stdout]   --> rectangle/src/lib.rs:7:8
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl Rectangle {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 7  |     fn new(length: f64, breadth: f64) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     fn area(&self) -> f64 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn perimeter(&self) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Shape` is never used
[INFO] [stdout]  --> shapes/src/shape_enum.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Shape {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `draw` is never used
[INFO] [stdout]  --> shapes/src/shape_enum.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Shape {
[INFO] [stdout]   | ---------- method in this implementation
[INFO] [stdout] 8 |     pub fn draw(&self) -> String {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Shape` is never used
[INFO] [stdout]  --> shapes/src/shape_trait.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Shape {
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Rectangle` is never constructed
[INFO] [stdout]  --> shapes/src/shape_trait.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Rectangle;
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Triangle` is never constructed
[INFO] [stdout]   --> shapes/src/shape_trait.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Triangle;
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Square` is never constructed
[INFO] [stdout]   --> shapes/src/shape_trait.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Square;
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::game_util::Player`
[INFO] [stdout]  --> tic-tac-toe/src/tic_tac_toe.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::game_util::Player;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> tic-tac-toe/src/tic_tac_toe.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{stdin, Error};
[INFO] [stdout]   |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stdout] warning: unused variable: `current_player`
[INFO] [stdout]   --> tic-tac-toe/src/tic_tac_toe.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let current_player = game_util::Player::USER;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_player`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `current_player`
[INFO] [stdout]   --> tic-tac-toe/src/tic_tac_toe.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let current_player = game_util::Player::USER;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_player`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `HELLO_MSG` is never used
[INFO] [stdout]  --> tic-tac-toe/src/game_util.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const HELLO_MSG: &str = "Hello! Let's start TicTacToe game!";
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SYSTEM` is never constructed
[INFO] [stdout]   --> tic-tac-toe/src/game_util.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub enum Player {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] 10 |     USER,
[INFO] [stdout] 11 |     SYSTEM,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `HELLO_MSG` is never used
[INFO] [stdout]  --> tic-tac-toe/src/game_util.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const HELLO_MSG: &str = "Hello! Let's start TicTacToe game!";
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `SYSTEM` is never constructed
[INFO] [stdout]   --> tic-tac-toe/src/game_util.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub enum Player {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] 10 |     USER,
[INFO] [stdout] 11 |     SYSTEM,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking signal-hook-mio v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossterm v0.21.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]     Checking pipeviewer v0.1.0 (/opt/rustwide/workdir/pipeviewer)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.48s
[INFO] running `Command { std: "docker" "inspect" "3c940befbec7f8aea30e9ece57f8625e2d742fea08799807ed7a9b902215d45d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c940befbec7f8aea30e9ece57f8625e2d742fea08799807ed7a9b902215d45d", kill_on_drop: false }`
[INFO] [stdout] 3c940befbec7f8aea30e9ece57f8625e2d742fea08799807ed7a9b902215d45d