[INFO] cloning repository https://github.com/caturwmn/async-tutorial2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/caturwmn/async-tutorial2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaturwmn%2Fasync-tutorial2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaturwmn%2Fasync-tutorial2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0167b24af278f56ee3bac853d8b31f9f1213ea33
[INFO] checking caturwmn/async-tutorial2/0167b24af278f56ee3bac853d8b31f9f1213ea33 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaturwmn%2Fasync-tutorial2" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/caturwmn/async-tutorial2 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/caturwmn/async-tutorial2
[INFO] finished tweaking git repo https://github.com/caturwmn/async-tutorial2
[INFO] tweaked toml for git repo https://github.com/caturwmn/async-tutorial2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/caturwmn/async-tutorial2 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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9cafa59d70ceb590a063058c18d66d2069ea0ff9545ac14300bc38f68d3fcbf8
[INFO] running `Command { std: "docker" "start" "-a" "9cafa59d70ceb590a063058c18d66d2069ea0ff9545ac14300bc38f68d3fcbf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cafa59d70ceb590a063058c18d66d2069ea0ff9545ac14300bc38f68d3fcbf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cafa59d70ceb590a063058c18d66d2069ea0ff9545ac14300bc38f68d3fcbf8", kill_on_drop: false }`
[INFO] [stdout] 9cafa59d70ceb590a063058c18d66d2069ea0ff9545ac14300bc38f68d3fcbf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d54ab8ae0ef6526b6b69d4f48d29557820a1731d4aa59830367b26d2670a1f0e
[INFO] running `Command { std: "docker" "start" "-a" "d54ab8ae0ef6526b6b69d4f48d29557820a1731d4aa59830367b26d2670a1f0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking pin-project-lite v0.2.14
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking fastrand v2.1.0
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking http v1.1.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking parking_lot v0.12.2
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking tokio-websockets v0.8.2
[INFO] [stderr]     Checking async-tutorial2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.13s
[INFO] running `Command { std: "docker" "inspect" "d54ab8ae0ef6526b6b69d4f48d29557820a1731d4aa59830367b26d2670a1f0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d54ab8ae0ef6526b6b69d4f48d29557820a1731d4aa59830367b26d2670a1f0e", kill_on_drop: false }`
[INFO] [stdout] d54ab8ae0ef6526b6b69d4f48d29557820a1731d4aa59830367b26d2670a1f0e