Dec 11 09:39:21.286 INFO checking sharkdp/kickoff against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 09:39:21.286 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 09:39:21.894 INFO [stdout] 54b71aeadae5f8966579fefe8ef2b88cf2eaabc1f18ad78c9e936cc04ba1804c
Dec 11 09:39:21.896 INFO running `"docker" "start" "-a" "54b71aeadae5f8966579fefe8ef2b88cf2eaabc1f18ad78c9e936cc04ba1804c"`
Dec 11 09:39:24.120 INFO [stderr] usermod: no changes
Dec 11 09:39:24.356 INFO [stderr]     Checking term_size v0.3.1
Dec 11 09:39:24.356 INFO [stderr]     Checking log v0.4.5
Dec 11 09:39:24.356 INFO [stderr]     Checking serde_json v1.0.31
Dec 11 09:39:24.936 INFO [stderr]     Checking textwrap v0.10.0
Dec 11 09:39:25.544 INFO [stderr]     Checking env_logger v0.5.13
Dec 11 09:39:26.168 INFO [stderr]     Checking clap v2.32.0
Dec 11 09:39:32.482 INFO [stderr]     Checking kickoff v0.1.0 (/source)
Dec 11 09:39:34.544 INFO [stderr] warning: unused variable: `socket_server`
Dec 11 09:39:34.545 INFO [stderr]   --> src/controller.rs:37:13
Dec 11 09:39:34.545 INFO [stderr]    |
Dec 11 09:39:34.545 INFO [stderr] 37 |         let socket_server = thread::spawn(move || {
Dec 11 09:39:34.545 INFO [stderr]    |             ^^^^^^^^^^^^^ help: consider using `_socket_server` instead
Dec 11 09:39:34.546 INFO [stderr]    |
Dec 11 09:39:34.546 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 09:39:34.546 INFO [stderr] 
Dec 11 09:39:34.800 INFO [stderr] warning: struct is never constructed: `ClusterIterator`
Dec 11 09:39:34.800 INFO [stderr]   --> src/util/cluster.rs:10:1
Dec 11 09:39:34.800 INFO [stderr]    |
Dec 11 09:39:34.800 INFO [stderr] 10 | pub struct ClusterIterator<T> {
Dec 11 09:39:34.800 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:39:34.800 INFO [stderr]    |
Dec 11 09:39:34.800 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 09:39:34.800 INFO [stderr] 
Dec 11 09:39:34.800 INFO [stderr] warning: method is never used: `from`
Dec 11 09:39:34.800 INFO [stderr]   --> src/util/cluster.rs:15:5
Dec 11 09:39:34.800 INFO [stderr]    |
Dec 11 09:39:34.800 INFO [stderr] 15 |     pub fn from<I: Iterator<Item = T> + 'static>(base: I) -> ClusterIterator<T> {
Dec 11 09:39:34.800 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 09:39:34.800 INFO [stderr] 
Dec 11 09:39:34.934 INFO [stderr] warning: unused variable: `socket_server`
Dec 11 09:39:34.934 INFO [stderr]   --> src/controller.rs:37:13
Dec 11 09:39:34.934 INFO [stderr]    |
Dec 11 09:39:34.934 INFO [stderr] 37 |         let socket_server = thread::spawn(move || {
Dec 11 09:39:34.934 INFO [stderr]    |             ^^^^^^^^^^^^^ help: consider using `_socket_server` instead
Dec 11 09:39:34.934 INFO [stderr]    |
Dec 11 09:39:34.934 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 09:39:34.934 INFO [stderr] 
Dec 11 09:39:35.260 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.11s
Dec 11 09:39:35.264 INFO [stderr] su: No module specific data is present
Dec 11 09:39:36.339 INFO running `"docker" "inspect" "54b71aeadae5f8966579fefe8ef2b88cf2eaabc1f18ad78c9e936cc04ba1804c"`
Dec 11 09:39:36.610 INFO running `"docker" "rm" "-f" "54b71aeadae5f8966579fefe8ef2b88cf2eaabc1f18ad78c9e936cc04ba1804c"`
Dec 11 09:39:37.028 INFO [stdout] 54b71aeadae5f8966579fefe8ef2b88cf2eaabc1f18ad78c9e936cc04ba1804c