Dec 17 12:22:39.027 INFO checking vorner/mix against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 12:22:39.028 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/vorner/mix:/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 12:22:39.514 INFO [stdout] b1efe6292c3eb753d6cea6afffb246cb12c1c6264b8e74b30ab8b664ac794685
Dec 17 12:22:39.519 INFO running `"docker" "start" "-a" "b1efe6292c3eb753d6cea6afffb246cb12c1c6264b8e74b30ab8b664ac794685"`
Dec 17 12:22:41.886 INFO [stderr]     Checking void v1.0.2
Dec 17 12:22:41.888 INFO [stderr]     Checking nodrop v0.1.12
Dec 17 12:22:41.907 INFO [stderr]     Checking memoffset v0.2.1
Dec 17 12:22:41.925 INFO [stderr]     Checking winapi v0.2.8
Dec 17 12:22:41.929 INFO [stderr]     Checking lazycell v1.2.0
Dec 17 12:22:41.930 INFO [stderr]     Checking serde v0.8.23
Dec 17 12:22:41.931 INFO [stderr]     Checking utf8-ranges v0.1.3
Dec 17 12:22:41.932 INFO [stderr]     Checking regex-syntax v0.3.9
Dec 17 12:22:42.346 INFO [stderr]     Checking rustc-demangle v0.1.9
Dec 17 12:22:42.366 INFO [stderr]     Checking vec_map v0.8.1
Dec 17 12:22:42.407 INFO [stderr]     Checking strsim v0.7.0
Dec 17 12:22:43.071 INFO [stderr]     Checking lazy_static v0.2.11
Dec 17 12:22:43.188 INFO [stderr]     Checking itoa v0.4.3
Dec 17 12:22:43.380 INFO [stderr]     Checking ansi_term v0.11.0
Dec 17 12:22:43.716 INFO [stderr]     Checking linked-hash-map v0.5.1
Dec 17 12:22:43.735 INFO [stderr]     Checking termcolor v1.0.4
Dec 17 12:22:43.803 INFO [stderr]     Checking rust-ini v0.12.2
Dec 17 12:22:44.517 INFO [stderr]    Compiling memchr v2.1.0
Dec 17 12:22:45.172 INFO [stderr]     Checking memchr v0.1.11
Dec 17 12:22:45.851 INFO [stderr]    Compiling miniz-sys v0.1.10
Dec 17 12:22:46.192 INFO [stderr]    Compiling context v2.1.0
Dec 17 12:22:46.272 INFO [stderr]    Compiling rlua v0.15.2
Dec 17 12:22:46.512 INFO [stderr]     Checking tokio-executor v0.1.5
Dec 17 12:22:46.768 INFO [stderr]     Checking serde_test v0.8.23
Dec 17 12:22:47.260 INFO [stderr]     Checking textwrap v0.10.0
Dec 17 12:22:48.829 INFO [stderr]     Checking unreachable v1.0.0
Dec 17 12:22:49.269 INFO [stderr]     Checking arrayvec v0.4.7
Dec 17 12:22:49.598 INFO [stderr]     Checking yaml-rust v0.4.2
Dec 17 12:22:49.601 INFO [stderr]     Checking lock_api v0.1.4
Dec 17 12:22:49.853 INFO [stderr]     Checking aho-corasick v0.5.3
Dec 17 12:22:52.204 INFO [stderr]     Checking mio v0.6.16
Dec 17 12:22:52.694 INFO [stderr]     Checking num-traits v0.2.6
Dec 17 12:22:52.804 INFO [stderr]     Checking ryu v0.2.6
Dec 17 12:22:53.141 INFO [stderr]     Checking serde v1.0.79
Dec 17 12:22:54.072 INFO [stderr]     Checking tokio-current-thread v0.1.3
Dec 17 12:22:54.100 INFO [stderr]     Checking tokio-timer v0.2.7
Dec 17 12:22:54.196 INFO [stderr]     Checking clap v2.32.0
Dec 17 12:22:54.568 INFO [stderr]     Checking smallvec v0.6.5
Dec 17 12:22:57.141 INFO [stderr]     Checking lazy_static v1.1.0
Dec 17 12:22:58.196 INFO [stderr]     Checking kernel32-sys v0.2.2
Dec 17 12:22:58.794 INFO [stderr]     Checking tokio-io v0.1.9
Dec 17 12:23:00.588 INFO [stderr]     Checking backtrace-sys v0.1.24
Dec 17 12:23:01.196 INFO [stderr]     Checking linked-hash-map v0.3.0
Dec 17 12:23:01.920 INFO [stderr]     Checking toml v0.4.7
Dec 17 12:23:04.045 INFO [stderr]     Checking thread_local v0.3.6
Dec 17 12:23:04.192 INFO [stderr]     Checking crossbeam-epoch v0.5.2
Dec 17 12:23:06.049 INFO [stderr]    Compiling syn v0.15.6
Dec 17 12:23:07.325 INFO [stderr]     Checking thread-id v2.0.0
Dec 17 12:23:07.676 INFO [stderr]     Checking mio-uds v0.6.7
Dec 17 12:23:09.568 INFO [stderr]     Checking backtrace v0.3.9
Dec 17 12:23:10.066 INFO [stderr]     Checking tokio-codec v0.1.1
Dec 17 12:23:10.841 INFO [stderr]     Checking num-traits v0.1.43
Dec 17 12:23:11.244 INFO [stderr]     Checking parking_lot_core v0.3.1
Dec 17 12:23:11.752 INFO [stderr]     Checking aho-corasick v0.6.8
Dec 17 12:23:12.941 INFO [stderr]     Checking nom v4.0.0
Dec 17 12:23:13.193 INFO [stderr]    Compiling structopt-derive v0.2.10
Dec 17 12:23:13.503 INFO [stderr]     Checking crossbeam-deque v0.6.1
Dec 17 12:23:14.117 INFO [stderr]     Checking thread_local v0.2.7
Dec 17 12:23:15.987 INFO [stderr]     Checking flate2 v1.0.2
Dec 17 12:23:18.385 INFO [stderr]     Checking tokio-threadpool v0.1.7
Dec 17 12:23:23.768 INFO [stderr]     Checking parking_lot v0.6.4
Dec 17 12:23:23.768 INFO [stderr]     Checking regex v1.0.5
Dec 17 12:23:25.566 INFO [stderr]     Checking regex v0.1.80
Dec 17 12:23:26.456 INFO [stderr]     Checking tokio-reactor v0.1.6
Dec 17 12:23:28.907 INFO [stderr]     Checking once_cell v0.1.6
Dec 17 12:23:29.221 INFO [stderr]     Checking failure v0.1.2
Dec 17 12:23:29.407 INFO [stderr]     Checking tokio-fs v0.1.3
Dec 17 12:23:29.981 INFO [stderr]     Checking serde-hjson v0.8.1
Dec 17 12:23:32.840 INFO [stderr]     Checking structopt v0.2.10
Dec 17 12:23:34.846 INFO [stderr]     Checking tokio-udp v0.1.2
Dec 17 12:23:34.911 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 17 12:23:35.352 INFO [stderr]     Checking tokio-uds v0.2.2
Dec 17 12:23:41.516 INFO [stderr]     Checking env_logger v0.5.13
Dec 17 12:23:43.651 INFO [stderr]     Checking config v0.9.1
Dec 17 12:23:43.816 INFO [stderr]     Checking tokio v0.1.11
Dec 17 12:23:45.946 INFO [stderr]     Checking serde_json v1.0.31
Dec 17 12:23:47.634 INFO [stderr]    Compiling serde_derive v1.0.79
Dec 17 12:23:48.314 INFO [stderr]     Checking corona v0.4.0
Dec 17 12:24:09.204 INFO [stderr]     Checking mix v0.1.0 (/opt/crater/workdir)
Dec 17 12:24:10.524 INFO [stderr] warning: method is never used: `new`
Dec 17 12:24:10.524 INFO [stderr]   --> src/mailbox/task.rs:12:5
Dec 17 12:24:10.524 INFO [stderr]    |
Dec 17 12:24:10.524 INFO [stderr] 12 |     pub fn new(inner: Arc<T>) -> Self {
Dec 17 12:24:10.524 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:24:10.524 INFO [stderr]    |
Dec 17 12:24:10.525 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 12:24:10.525 INFO [stderr] 
Dec 17 12:24:10.525 INFO [stderr] warning: method is never used: `into_inner`
Dec 17 12:24:10.525 INFO [stderr]   --> src/mailbox/task.rs:15:5
Dec 17 12:24:10.525 INFO [stderr]    |
Dec 17 12:24:10.525 INFO [stderr] 15 |     pub fn into_inner(self) -> Arc<T> {
Dec 17 12:24:10.525 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:24:10.525 INFO [stderr] 
Dec 17 12:24:10.525 INFO [stderr] warning: method is never used: `perform`
Dec 17 12:24:10.525 INFO [stderr]   --> src/mailbox/task.rs:72:5
Dec 17 12:24:10.525 INFO [stderr]    |
Dec 17 12:24:10.525 INFO [stderr] 72 |     fn perform(self) {
Dec 17 12:24:10.525 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 17 12:24:10.525 INFO [stderr] 
Dec 17 12:24:10.525 INFO [stderr] warning: method is never used: `pop`
Dec 17 12:24:10.525 INFO [stderr]   --> src/mailbox/task.rs:91:5
Dec 17 12:24:10.525 INFO [stderr]    |
Dec 17 12:24:10.525 INFO [stderr] 91 |     fn pop(&mut self) -> Option<Task> {
Dec 17 12:24:10.525 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:24:10.525 INFO [stderr] 
Dec 17 12:24:10.525 INFO [stderr] warning: method is never used: `turn`
Dec 17 12:24:10.525 INFO [stderr]    --> src/mailbox/task.rs:103:5
Dec 17 12:24:10.525 INFO [stderr]     |
Dec 17 12:24:10.525 INFO [stderr] 103 |     pub(super) fn turn(&mut self) -> bool {
Dec 17 12:24:10.525 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:24:10.525 INFO [stderr] 
Dec 17 12:24:10.525 INFO [stderr] warning: variant is never constructed: `MailboxContent`
Dec 17 12:24:10.526 INFO [stderr]    --> src/mailbox.rs:151:5
Dec 17 12:24:10.526 INFO [stderr]     |
Dec 17 12:24:10.526 INFO [stderr] 151 |     MailboxContent(Arc<Mailbox>),
Dec 17 12:24:10.526 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:24:10.526 INFO [stderr] 
Dec 17 12:24:10.848 INFO [stderr] warning: method is never used: `new`
Dec 17 12:24:10.848 INFO [stderr]   --> src/mailbox/task.rs:12:5
Dec 17 12:24:10.848 INFO [stderr]    |
Dec 17 12:24:10.848 INFO [stderr] 12 |     pub fn new(inner: Arc<T>) -> Self {
Dec 17 12:24:10.848 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:24:10.848 INFO [stderr]    |
Dec 17 12:24:10.848 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 12:24:10.849 INFO [stderr] 
Dec 17 12:24:10.849 INFO [stderr] warning: method is never used: `into_inner`
Dec 17 12:24:10.849 INFO [stderr]   --> src/mailbox/task.rs:15:5
Dec 17 12:24:10.849 INFO [stderr]    |
Dec 17 12:24:10.849 INFO [stderr] 15 |     pub fn into_inner(self) -> Arc<T> {
Dec 17 12:24:10.849 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:24:10.849 INFO [stderr] 
Dec 17 12:24:10.849 INFO [stderr] warning: method is never used: `perform`
Dec 17 12:24:10.849 INFO [stderr]   --> src/mailbox/task.rs:72:5
Dec 17 12:24:10.849 INFO [stderr]    |
Dec 17 12:24:10.849 INFO [stderr] 72 |     fn perform(self) {
Dec 17 12:24:10.849 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 17 12:24:10.849 INFO [stderr] 
Dec 17 12:24:10.849 INFO [stderr] warning: method is never used: `pop`
Dec 17 12:24:10.849 INFO [stderr]   --> src/mailbox/task.rs:91:5
Dec 17 12:24:10.849 INFO [stderr]    |
Dec 17 12:24:10.849 INFO [stderr] 91 |     fn pop(&mut self) -> Option<Task> {
Dec 17 12:24:10.849 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:24:10.849 INFO [stderr] 
Dec 17 12:24:10.849 INFO [stderr] warning: method is never used: `turn`
Dec 17 12:24:10.849 INFO [stderr]    --> src/mailbox/task.rs:103:5
Dec 17 12:24:10.849 INFO [stderr]     |
Dec 17 12:24:10.849 INFO [stderr] 103 |     pub(super) fn turn(&mut self) -> bool {
Dec 17 12:24:10.849 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:24:10.849 INFO [stderr] 
Dec 17 12:24:10.855 INFO [stderr] warning: variant is never constructed: `MailboxContent`
Dec 17 12:24:10.855 INFO [stderr]    --> src/mailbox.rs:151:5
Dec 17 12:24:10.855 INFO [stderr]     |
Dec 17 12:24:10.855 INFO [stderr] 151 |     MailboxContent(Arc<Mailbox>),
Dec 17 12:24:10.855 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:24:10.855 INFO [stderr] 
Dec 17 12:24:10.909 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 29s
Dec 17 12:24:12.613 INFO running `"docker" "inspect" "b1efe6292c3eb753d6cea6afffb246cb12c1c6264b8e74b30ab8b664ac794685"`
Dec 17 12:24:12.886 INFO running `"docker" "rm" "-f" "b1efe6292c3eb753d6cea6afffb246cb12c1c6264b8e74b30ab8b664ac794685"`
Dec 17 12:24:13.232 INFO [stdout] b1efe6292c3eb753d6cea6afffb246cb12c1c6264b8e74b30ab8b664ac794685