[INFO] cloning repository https://github.com/nakaryo716/tokio-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nakaryo716/tokio-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnakaryo716%2Ftokio-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnakaryo716%2Ftokio-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e16cd71e672b1a14e6fc4f2d987020993c088be
[INFO] checking nakaryo716/tokio-tutorial against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnakaryo716%2Ftokio-tutorial" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nakaryo716/tokio-tutorial 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/nakaryo716/tokio-tutorial
[INFO] finished tweaking git repo https://github.com/nakaryo716/tokio-tutorial
[INFO] tweaked toml for git repo https://github.com/nakaryo716/tokio-tutorial written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nakaryo716/tokio-tutorial 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] fdb6f411c092b90f5fcd06c194e7d9313ae57aa41c3925af7d4c39f307f83d6e
[INFO] running `Command { std: "docker" "start" "-a" "fdb6f411c092b90f5fcd06c194e7d9313ae57aa41c3925af7d4c39f307f83d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdb6f411c092b90f5fcd06c194e7d9313ae57aa41c3925af7d4c39f307f83d6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdb6f411c092b90f5fcd06c194e7d9313ae57aa41c3925af7d4c39f307f83d6e", kill_on_drop: false }`
[INFO] [stdout] fdb6f411c092b90f5fcd06c194e7d9313ae57aa41c3925af7d4c39f307f83d6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1ff83e6887bda1e6539c58c07dd08003ab6f55b5f0017f9a4fe83d7437fce957
[INFO] running `Command { std: "docker" "start" "-a" "1ff83e6887bda1e6539c58c07dd08003ab6f55b5f0017f9a4fe83d7437fce957", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking channel v0.1.0 (/opt/rustwide/workdir/channel)
[INFO] [stderr]     Checking message v0.1.0 (/opt/rustwide/workdir/message)
[INFO] [stderr]     Checking io v0.1.0 (/opt/rustwide/workdir/io)
[INFO] [stdout] warning: unused imports: `Arc`, `RwLock`
[INFO] [stdout]  --> message/src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     sync::{Arc, RwLock},
[INFO] [stdout]   |            ^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `RwLock`
[INFO] [stdout]  --> message/src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     sync::{Arc, RwLock},
[INFO] [stdout]   |            ^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.82s
[INFO] running `Command { std: "docker" "inspect" "1ff83e6887bda1e6539c58c07dd08003ab6f55b5f0017f9a4fe83d7437fce957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ff83e6887bda1e6539c58c07dd08003ab6f55b5f0017f9a4fe83d7437fce957", kill_on_drop: false }`
[INFO] [stdout] 1ff83e6887bda1e6539c58c07dd08003ab6f55b5f0017f9a4fe83d7437fce957