[INFO] cloning repository https://github.com/oYOvOYo/Rust.Playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oYOvOYo/Rust.Playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FoYOvOYo%2FRust.Playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FoYOvOYo%2FRust.Playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4eb023e514b177b1fbbe74c078dbe062119996a
[INFO] checking oYOvOYo/Rust.Playground against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FoYOvOYo%2FRust.Playground" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oYOvOYo/Rust.Playground 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/oYOvOYo/Rust.Playground
[INFO] finished tweaking git repo https://github.com/oYOvOYo/Rust.Playground
[INFO] tweaked toml for git repo https://github.com/oYOvOYo/Rust.Playground written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/oYOvOYo/Rust.Playground 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]     Updating git repository `https://github.com/bjz/glfw-rs.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protobuf v2.25.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6872c9c4c0e718883be137609d5fd442ab8436b59f8821a643ad20fb5c77fae4
[INFO] running `Command { std: "docker" "start" "-a" "6872c9c4c0e718883be137609d5fd442ab8436b59f8821a643ad20fb5c77fae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6872c9c4c0e718883be137609d5fd442ab8436b59f8821a643ad20fb5c77fae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6872c9c4c0e718883be137609d5fd442ab8436b59f8821a643ad20fb5c77fae4", kill_on_drop: false }`
[INFO] [stdout] 6872c9c4c0e718883be137609d5fd442ab8436b59f8821a643ad20fb5c77fae4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 22058b116e9e4710f4dce598309b8300704e0a3f932180992cc10958b134a4d0
[INFO] running `Command { std: "docker" "start" "-a" "22058b116e9e4710f4dce598309b8300704e0a3f932180992cc10958b134a4d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling protobuf v2.25.2
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling engine v0.1.0 (/opt/rustwide/workdir/engine)
[INFO] [stderr]     Checking leetcode v0.1.0 (/opt/rustwide/workdir/leetcode)
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking glfw v0.41.0 (https://github.com/bjz/glfw-rs.git#563785d4)
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]     Checking config v0.1.0 (/opt/rustwide/workdir/config)
[INFO] [stdout] warning: the item `gl` is imported redundantly
[INFO] [stdout]  --> engine/src/doing.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use gl;
[INFO] [stdout]   |     ^^ the item `gl` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `glfw` is imported redundantly
[INFO] [stdout]  --> engine/src/doing.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use glfw;
[INFO] [stdout]   |     ^^^^ the item `glfw` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `config` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use config;
[INFO] [stdout]   |     ^^^^^^ the item `config` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `engine` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use engine;
[INFO] [stdout]   |     ^^^^^^ the item `engine` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `config` is imported redundantly
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use config;
[INFO] [stdout]   |     ^^^^^^ the item `config` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `engine` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use engine;
[INFO] [stdout]   |     ^^^^^^ the item `engine` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.90s
[INFO] running `Command { std: "docker" "inspect" "22058b116e9e4710f4dce598309b8300704e0a3f932180992cc10958b134a4d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22058b116e9e4710f4dce598309b8300704e0a3f932180992cc10958b134a4d0", kill_on_drop: false }`
[INFO] [stdout] 22058b116e9e4710f4dce598309b8300704e0a3f932180992cc10958b134a4d0