[INFO] cloning repository https://github.com/jonkgrimes/juno-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonkgrimes/juno-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonkgrimes%2Fjuno-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonkgrimes%2Fjuno-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 03ed8dba1b398c2f01aefc05e7c85682866ab5ab
[INFO] checking jonkgrimes/juno-client against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonkgrimes%2Fjuno-client" "/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/jonkgrimes/juno-client on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jonkgrimes/juno-client
[INFO] finished tweaking git repo https://github.com/jonkgrimes/juno-client
[INFO] tweaked toml for git repo https://github.com/jonkgrimes/juno-client written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/jonkgrimes/juno-client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--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] 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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5500c648dd3aa266e5c3a4d3d77436f1683e95e31c27c181000390cde12d5299
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5500c648dd3aa266e5c3a4d3d77436f1683e95e31c27c181000390cde12d5299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5500c648dd3aa266e5c3a4d3d77436f1683e95e31c27c181000390cde12d5299", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5500c648dd3aa266e5c3a4d3d77436f1683e95e31c27c181000390cde12d5299", kill_on_drop: false }`
[INFO] [stdout] 5500c648dd3aa266e5c3a4d3d77436f1683e95e31c27c181000390cde12d5299
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 65f1c727beb10dd6cad10fce4c631f68ef6e8f86bc7fa6ab9fc628439424da9f
[INFO] running `Command { std: "docker" "start" "-a" "65f1c727beb10dd6cad10fce4c631f68ef6e8f86bc7fa6ab9fc628439424da9f", 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]     Checking byteorder v1.2.4
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.70
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking indexmap v1.0.1
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking tokio-executor v0.1.2
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]     Checking tokio-timer v0.2.4
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]     Checking bytes v0.4.9
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]    Compiling quote v0.6.4
[INFO] [stderr]     Checking tokio-io v0.1.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.5
[INFO] [stderr]     Checking http v0.1.8
[INFO] [stderr]    Compiling syn v0.14.6
[INFO] [stderr]     Checking tokio-reactor v0.1.2
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking tokio-fs v0.1.2
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking tokio-udp v0.1.1
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking h2 v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.70
[INFO] [stderr]     Checking toml v0.4.8
[INFO] [stderr]     Checking serde_json v1.0.24
[INFO] [stderr]     Checking hyper v0.12.7
[INFO] [stderr]     Checking juno_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/lib.rs:68:3
[INFO] [stdout]    |
[INFO] [stdout] 38 | /   loop {
[INFO] [stdout] 39 | |     // Setup data
[INFO] [stdout] 40 | |     let metric = MetricData::fake(uuid);
[INFO] [stdout] 41 | |
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |     thread::sleep(Duration::new(3, 0));
[INFO] [stdout] 65 | |   }
[INFO] [stdout]    | |___- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 68 |     runtime.shutdown_on_idle().wait().unwrap(); 
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/lib.rs:68:3
[INFO] [stdout]    |
[INFO] [stdout] 38 | /   loop {
[INFO] [stdout] 39 | |     // Setup data
[INFO] [stdout] 40 | |     let metric = MetricData::fake(uuid);
[INFO] [stdout] 41 | |
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |     thread::sleep(Duration::new(3, 0));
[INFO] [stdout] 65 | |   }
[INFO] [stdout]    | |___- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 68 |     runtime.shutdown_on_idle().wait().unwrap(); 
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_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]     Finished dev [unoptimized + debuginfo] target(s) in 36.88s
[INFO] running `Command { std: "docker" "inspect" "65f1c727beb10dd6cad10fce4c631f68ef6e8f86bc7fa6ab9fc628439424da9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65f1c727beb10dd6cad10fce4c631f68ef6e8f86bc7fa6ab9fc628439424da9f", kill_on_drop: false }`
[INFO] [stdout] 65f1c727beb10dd6cad10fce4c631f68ef6e8f86bc7fa6ab9fc628439424da9f