Dec 17 15:34:05.201 INFO checking sharkdp/kickoff against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 15:34:05.201 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 15:34:05.718 INFO [stdout] c1dd43237e6816d71c98bc440a5d95960874a677a5037cc39609e65fa36ada0a
Dec 17 15:34:05.720 INFO running `"docker" "start" "-a" "c1dd43237e6816d71c98bc440a5d95960874a677a5037cc39609e65fa36ada0a"`
Dec 17 15:34:09.004 INFO [stderr]     Checking term_size v0.3.1
Dec 17 15:34:09.006 INFO [stderr]     Checking log v0.4.5
Dec 17 15:34:09.022 INFO [stderr]     Checking serde_json v1.0.31
Dec 17 15:34:09.024 INFO [stderr]     Checking ctrlc v3.1.1
Dec 17 15:34:09.573 INFO [stderr]     Checking textwrap v0.10.0
Dec 17 15:34:10.220 INFO [stderr]     Checking env_logger v0.5.13
Dec 17 15:34:10.724 INFO [stderr]     Checking clap v2.32.0
Dec 17 15:34:17.000 INFO [stderr]     Checking kickoff v0.1.0 (/opt/crater/workdir)
Dec 17 15:34:18.220 INFO [stderr] warning: unused variable: `socket_server`
Dec 17 15:34:18.220 INFO [stderr]   --> src/controller.rs:37:13
Dec 17 15:34:18.220 INFO [stderr]    |
Dec 17 15:34:18.220 INFO [stderr] 37 |         let socket_server = thread::spawn(move || {
Dec 17 15:34:18.220 INFO [stderr]    |             ^^^^^^^^^^^^^ help: consider using `_socket_server` instead
Dec 17 15:34:18.220 INFO [stderr]    |
Dec 17 15:34:18.220 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 15:34:18.220 INFO [stderr] 
Dec 17 15:34:18.552 INFO [stderr] warning: struct is never constructed: `ClusterIterator`
Dec 17 15:34:18.552 INFO [stderr]   --> src/util/cluster.rs:10:1
Dec 17 15:34:18.552 INFO [stderr]    |
Dec 17 15:34:18.552 INFO [stderr] 10 | pub struct ClusterIterator<T> {
Dec 17 15:34:18.552 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:34:18.552 INFO [stderr]    |
Dec 17 15:34:18.552 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 15:34:18.552 INFO [stderr] 
Dec 17 15:34:18.552 INFO [stderr] warning: method is never used: `from`
Dec 17 15:34:18.552 INFO [stderr]   --> src/util/cluster.rs:15:5
Dec 17 15:34:18.552 INFO [stderr]    |
Dec 17 15:34:18.553 INFO [stderr] 15 |     pub fn from<I: Iterator<Item = T> + 'static>(base: I) -> ClusterIterator<T> {
Dec 17 15:34:18.553 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 15:34:18.553 INFO [stderr] 
Dec 17 15:34:18.992 INFO [stderr] warning: unused variable: `socket_server`
Dec 17 15:34:18.992 INFO [stderr]   --> src/controller.rs:37:13
Dec 17 15:34:18.992 INFO [stderr]    |
Dec 17 15:34:18.992 INFO [stderr] 37 |         let socket_server = thread::spawn(move || {
Dec 17 15:34:18.992 INFO [stderr]    |             ^^^^^^^^^^^^^ help: consider using `_socket_server` instead
Dec 17 15:34:18.992 INFO [stderr]    |
Dec 17 15:34:18.992 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 15:34:18.992 INFO [stderr] 
Dec 17 15:34:19.270 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.43s
Dec 17 15:34:20.788 INFO running `"docker" "inspect" "c1dd43237e6816d71c98bc440a5d95960874a677a5037cc39609e65fa36ada0a"`
Dec 17 15:34:21.180 INFO running `"docker" "rm" "-f" "c1dd43237e6816d71c98bc440a5d95960874a677a5037cc39609e65fa36ada0a"`
Dec 17 15:34:21.532 INFO [stdout] c1dd43237e6816d71c98bc440a5d95960874a677a5037cc39609e65fa36ada0a