[INFO] cloning repository https://github.com/beshubh/flyio-dist-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/beshubh/flyio-dist-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeshubh%2Fflyio-dist-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeshubh%2Fflyio-dist-challenges'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a0c950a71a2b970338b7ad6f39e0aad7316f369
[INFO] checking beshubh/flyio-dist-challenges against try#0c70cfbec949d241375e31c5a42066be70c720fc for pr-149681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeshubh%2Fflyio-dist-challenges" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/beshubh/flyio-dist-challenges
[INFO] finished tweaking git repo https://github.com/beshubh/flyio-dist-challenges
[INFO] tweaked toml for git repo https://github.com/beshubh/flyio-dist-challenges written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/beshubh/flyio-dist-challenges on toolchain 0c70cfbec949d241375e31c5a42066be70c720fc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/beshubh/flyio-dist-challenges 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" "+0c70cfbec949d241375e31c5a42066be70c720fc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking beshubh/flyio-dist-challenges against try#0c70cfbec949d241375e31c5a42066be70c720fc for pr-149681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeshubh%2Fflyio-dist-challenges" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/beshubh/flyio-dist-challenges
[INFO] finished tweaking git repo https://github.com/beshubh/flyio-dist-challenges
[INFO] tweaked toml for git repo https://github.com/beshubh/flyio-dist-challenges written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/beshubh/flyio-dist-challenges on toolchain 0c70cfbec949d241375e31c5a42066be70c720fc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/beshubh/flyio-dist-challenges 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" "+0c70cfbec949d241375e31c5a42066be70c720fc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simplelog v0.12.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 245d18d396f351ec4ef805d16007221eef5025d0a8d9ad7a501afbfc251b45cd
[INFO] running `Command { std: "docker" "start" "-a" "245d18d396f351ec4ef805d16007221eef5025d0a8d9ad7a501afbfc251b45cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "245d18d396f351ec4ef805d16007221eef5025d0a8d9ad7a501afbfc251b45cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "245d18d396f351ec4ef805d16007221eef5025d0a8d9ad7a501afbfc251b45cd", kill_on_drop: false }`
[INFO] [stdout] 245d18d396f351ec4ef805d16007221eef5025d0a8d9ad7a501afbfc251b45cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1d43a0d47336010632dd26b780939e2fdb4db23073c6685e8d2eeea7091595c
[INFO] running `Command { std: "docker" "start" "-a" "f1d43a0d47336010632dd26b780939e2fdb4db23073c6685e8d2eeea7091595c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]     Checking time v0.3.44
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking simplelog v0.12.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking flyio-dist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `node_ids` and `topics` are never read
[INFO] [stdout]   --> src/bin/kafka.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct KafkaNode {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 52 |     id: String,
[INFO] [stdout] 53 |     node_ids: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     topics: Vec<String>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `node_ids` and `topics` are never read
[INFO] [stdout]   --> src/bin/kafka.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct KafkaNode {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 52 |     id: String,
[INFO] [stdout] 53 |     node_ids: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     topics: Vec<String>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.07s
[INFO] running `Command { std: "docker" "inspect" "f1d43a0d47336010632dd26b780939e2fdb4db23073c6685e8d2eeea7091595c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1d43a0d47336010632dd26b780939e2fdb4db23073c6685e8d2eeea7091595c", kill_on_drop: false }`
[INFO] [stdout] f1d43a0d47336010632dd26b780939e2fdb4db23073c6685e8d2eeea7091595c