[INFO] cloning repository https://github.com/rafalpiotrowski/mlabvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rafalpiotrowski/mlabvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frafalpiotrowski%2Fmlabvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frafalpiotrowski%2Fmlabvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48308a463c15f9a10779cfe800330bc072143f5b
[INFO] checking rafalpiotrowski/mlabvm against master#9d28fe39763974a96d61232e96ac856735e4cdd6 for pr-139624
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frafalpiotrowski%2Fmlabvm" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rafalpiotrowski/mlabvm on toolchain 9d28fe39763974a96d61232e96ac856735e4cdd6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rafalpiotrowski/mlabvm
[INFO] finished tweaking git repo https://github.com/rafalpiotrowski/mlabvm
[INFO] tweaked toml for git repo https://github.com/rafalpiotrowski/mlabvm written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rafalpiotrowski/mlabvm 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" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6d89aa8d2018932c434a04f6484331df31bbc21580067fea9ee65b73e2786fc
[INFO] running `Command { std: "docker" "start" "-a" "e6d89aa8d2018932c434a04f6484331df31bbc21580067fea9ee65b73e2786fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6d89aa8d2018932c434a04f6484331df31bbc21580067fea9ee65b73e2786fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6d89aa8d2018932c434a04f6484331df31bbc21580067fea9ee65b73e2786fc", kill_on_drop: false }`
[INFO] [stdout] e6d89aa8d2018932c434a04f6484331df31bbc21580067fea9ee65b73e2786fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9d28fe39763974a96d61232e96ac856735e4cdd6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfc4048734db7b1e21c0b176713b181ea49dcfa57b78cdc3b110099eeefa2fab
[INFO] running `Command { std: "docker" "start" "-a" "dfc4048734db7b1e21c0b176713b181ea49dcfa57b78cdc3b110099eeefa2fab", kill_on_drop: false }`
[INFO] [stderr]     Checking mlabvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> src/main.rs:83:18
[INFO] [stdout]    |
[INFO] [stdout] 83 |             Loop(count) => {
[INFO] [stdout]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> src/main.rs:83:18
[INFO] [stdout]    |
[INFO] [stdout] 83 |             Loop(count) => {
[INFO] [stdout]    |                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "dfc4048734db7b1e21c0b176713b181ea49dcfa57b78cdc3b110099eeefa2fab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfc4048734db7b1e21c0b176713b181ea49dcfa57b78cdc3b110099eeefa2fab", kill_on_drop: false }`
[INFO] [stdout] dfc4048734db7b1e21c0b176713b181ea49dcfa57b78cdc3b110099eeefa2fab