Dec 19 08:57:21.769 INFO checking sharkdp/kickoff against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 08:57:21.769 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/sharkdp/kickoff:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 08:57:22.320 INFO [stdout] 8ccb55a0040717b76c28458bf595224741da9d4106e5e2ea74761ad1eff2ab10
Dec 19 08:57:22.322 INFO running `"docker" "start" "-a" "8ccb55a0040717b76c28458bf595224741da9d4106e5e2ea74761ad1eff2ab10"`
Dec 19 08:57:24.206 INFO [stderr]     Checking log v0.4.5
Dec 19 08:57:24.207 INFO [stderr]     Checking clap v2.32.0
Dec 19 08:57:24.208 INFO [stderr]     Checking ctrlc v3.1.1
Dec 19 08:57:25.039 INFO [stderr]     Checking env_logger v0.5.13
Dec 19 08:57:29.844 INFO [stderr]     Checking kickoff v0.1.0 (/opt/crater/workdir)
Dec 19 08:57:31.108 INFO [stderr] warning: unused variable: `socket_server`
Dec 19 08:57:31.108 INFO [stderr]   --> src/controller.rs:37:13
Dec 19 08:57:31.108 INFO [stderr]    |
Dec 19 08:57:31.108 INFO [stderr] 37 |         let socket_server = thread::spawn(move || {
Dec 19 08:57:31.108 INFO [stderr]    |             ^^^^^^^^^^^^^ help: consider using `_socket_server` instead
Dec 19 08:57:31.108 INFO [stderr]    |
Dec 19 08:57:31.108 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 08:57:31.108 INFO [stderr] 
Dec 19 08:57:31.184 INFO [stderr] warning: unused variable: `socket_server`
Dec 19 08:57:31.185 INFO [stderr]   --> src/controller.rs:37:13
Dec 19 08:57:31.185 INFO [stderr]    |
Dec 19 08:57:31.185 INFO [stderr] 37 |         let socket_server = thread::spawn(move || {
Dec 19 08:57:31.186 INFO [stderr]    |             ^^^^^^^^^^^^^ help: consider using `_socket_server` instead
Dec 19 08:57:31.186 INFO [stderr]    |
Dec 19 08:57:31.186 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 08:57:31.186 INFO [stderr] 
Dec 19 08:57:31.336 INFO [stderr] warning: struct is never constructed: `ClusterIterator`
Dec 19 08:57:31.336 INFO [stderr]   --> src/util/cluster.rs:10:1
Dec 19 08:57:31.338 INFO [stderr]    |
Dec 19 08:57:31.338 INFO [stderr] 10 | pub struct ClusterIterator<T> {
Dec 19 08:57:31.338 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:57:31.338 INFO [stderr]    |
Dec 19 08:57:31.338 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 08:57:31.338 INFO [stderr] 
Dec 19 08:57:31.338 INFO [stderr] warning: method is never used: `from`
Dec 19 08:57:31.338 INFO [stderr]   --> src/util/cluster.rs:15:5
Dec 19 08:57:31.339 INFO [stderr]    |
Dec 19 08:57:31.339 INFO [stderr] 15 |     pub fn from<I: Iterator<Item = T> + 'static>(base: I) -> ClusterIterator<T> {
Dec 19 08:57:31.339 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:57:31.339 INFO [stderr] 
Dec 19 08:57:31.484 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.46s
Dec 19 08:57:32.280 INFO running `"docker" "inspect" "8ccb55a0040717b76c28458bf595224741da9d4106e5e2ea74761ad1eff2ab10"`
Dec 19 08:57:32.612 INFO running `"docker" "rm" "-f" "8ccb55a0040717b76c28458bf595224741da9d4106e5e2ea74761ad1eff2ab10"`
Dec 19 08:57:33.032 INFO [stdout] 8ccb55a0040717b76c28458bf595224741da9d4106e5e2ea74761ad1eff2ab10