[INFO] cloning repository https://github.com/aqrun/learning_rust_by_games
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aqrun/learning_rust_by_games" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faqrun%2Flearning_rust_by_games", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faqrun%2Flearning_rust_by_games'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5eea6a01b3276231bc68cc87224aa37bd569c92e
[INFO] checking aqrun/learning_rust_by_games against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faqrun%2Flearning_rust_by_games" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aqrun/learning_rust_by_games on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aqrun/learning_rust_by_games
[INFO] finished tweaking git repo https://github.com/aqrun/learning_rust_by_games
[INFO] tweaked toml for git repo https://github.com/aqrun/learning_rust_by_games written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/aqrun/learning_rust_by_games already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b11f805c9a18f8d10d302137ea5d517362336eed4fde55ff021c72a9d7e45c5
[INFO] running `Command { std: "docker" "start" "-a" "9b11f805c9a18f8d10d302137ea5d517362336eed4fde55ff021c72a9d7e45c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b11f805c9a18f8d10d302137ea5d517362336eed4fde55ff021c72a9d7e45c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b11f805c9a18f8d10d302137ea5d517362336eed4fde55ff021c72a9d7e45c5", kill_on_drop: false }`
[INFO] [stdout] 9b11f805c9a18f8d10d302137ea5d517362336eed4fde55ff021c72a9d7e45c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6d3cb00cea9e611f278104467a3b0dd7437a6249d80632b086bbd94669d3d45
[INFO] running `Command { std: "docker" "start" "-a" "c6d3cb00cea9e611f278104467a3b0dd7437a6249d80632b086bbd94669d3d45", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking mio v0.7.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossterm v0.18.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking learning_rust_by_games v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `1_2_1_simple_plane`
[INFO] [stdout]   --> src/bin/1-2-1-simple-plane.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / extern crate aqrun_lrbg;
[INFO] [stdout] 2  | |
[INFO] [stdout] 3  | | use aqrun_lrbg::common;
[INFO] [stdout] 4  | | use std::io::stdin;
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     }
[INFO] [stdout] 38 | | }
[INFO] [stdout]    | |_^ consider adding a `main` function to `src/bin/1-2-1-simple-plane.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]   --> src/bin/3-2-2-array-ball-with-board.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `position_y`
[INFO] [stdout]   --> src/bin/2-2-5-ball-hit-block.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub position_y: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bar1_x`
[INFO] [stdout]   --> src/bin/2-3-1-drop-down-bird.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub bar1_x: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bar1_y_top`
[INFO] [stdout]   --> src/bin/2-3-1-drop-down-bird.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub bar1_y_top: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bar1_y_bottom`
[INFO] [stdout]   --> src/bin/2-3-1-drop-down-bird.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub bar1_y_bottom: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learning_rust_by_games` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bar1_x`
[INFO] [stdout]   --> src/bin/2-3-1-drop-down-bird.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub bar1_x: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bar1_y_top`
[INFO] [stdout]   --> src/bin/2-3-1-drop-down-bird.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub bar1_y_top: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `bar1_y_bottom`
[INFO] [stdout]   --> src/bin/2-3-1-drop-down-bird.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub bar1_y_bottom: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `position_y`
[INFO] [stdout]   --> src/bin/2-2-4-ball-rebound.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub position_y: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]   --> src/bin/3-2-3-array-ball-hit-block.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use rand::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `position_y`
[INFO] [stdout]   --> src/bin/2-2-4-ball-rebound.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub position_y: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c6d3cb00cea9e611f278104467a3b0dd7437a6249d80632b086bbd94669d3d45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6d3cb00cea9e611f278104467a3b0dd7437a6249d80632b086bbd94669d3d45", kill_on_drop: false }`
[INFO] [stdout] c6d3cb00cea9e611f278104467a3b0dd7437a6249d80632b086bbd94669d3d45