Dec 19 05:55:09.545 INFO checking vorner/mix against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 05:55:09.545 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 05:55:10.028 INFO [stdout] b092bbdff69d8e5bb991912059c4828d8c9ea9e40cf28a85b6a264a71bc78a37
Dec 19 05:55:10.030 INFO running `"docker" "start" "-a" "b092bbdff69d8e5bb991912059c4828d8c9ea9e40cf28a85b6a264a71bc78a37"`
Dec 19 05:55:12.648 INFO [stderr]     Checking void v1.0.2
Dec 19 05:55:12.656 INFO [stderr]     Checking stable_deref_trait v1.1.1
Dec 19 05:55:12.656 INFO [stderr]     Checking rand_core v0.2.1
Dec 19 05:55:12.656 INFO [stderr]     Checking libc v0.2.43
Dec 19 05:55:12.656 INFO [stderr]     Checking nodrop v0.1.12
Dec 19 05:55:12.656 INFO [stderr]     Checking winapi v0.2.8
Dec 19 05:55:12.656 INFO [stderr]     Checking memoffset v0.2.1
Dec 19 05:55:12.676 INFO [stderr]     Checking crossbeam-utils v0.5.0
Dec 19 05:55:12.929 INFO [stderr]     Checking byteorder v1.2.6
Dec 19 05:55:13.150 INFO [stderr]     Checking scopeguard v0.3.3
Dec 19 05:55:13.338 INFO [stderr]     Checking cfg-if v0.1.5
Dec 19 05:55:13.397 INFO [stderr]     Checking lazycell v1.2.0
Dec 19 05:55:13.900 INFO [stderr]     Checking futures v0.1.24
Dec 19 05:55:14.020 INFO [stderr]     Checking slab v0.4.1
Dec 19 05:55:14.400 INFO [stderr]     Checking serde v0.8.23
Dec 19 05:55:14.472 INFO [stderr]     Checking rustc-demangle v0.1.9
Dec 19 05:55:14.540 INFO [stderr]     Checking regex-syntax v0.3.9
Dec 19 05:55:15.493 INFO [stderr]     Checking ucd-util v0.1.1
Dec 19 05:55:15.805 INFO [stderr]     Checking utf8-ranges v0.1.3
Dec 19 05:55:15.938 INFO [stderr]     Checking unicode-width v0.1.5
Dec 19 05:55:17.093 INFO [stderr]     Checking strsim v0.7.0
Dec 19 05:55:17.289 INFO [stderr]     Checking itoa v0.4.3
Dec 19 05:55:17.430 INFO [stderr]     Checking linked-hash-map v0.5.1
Dec 19 05:55:18.242 INFO [stderr]     Checking utf8-ranges v1.0.1
Dec 19 05:55:18.993 INFO [stderr]     Checking quick-error v1.2.2
Dec 19 05:55:19.298 INFO [stderr]     Checking vec_map v0.8.1
Dec 19 05:55:19.820 INFO [stderr]     Checking lazy_static v0.2.11
Dec 19 05:55:20.266 INFO [stderr]     Checking bitflags v1.0.4
Dec 19 05:55:20.358 INFO [stderr]     Checking ansi_term v0.11.0
Dec 19 05:55:20.662 INFO [stderr]     Checking same-file v1.0.3
Dec 19 05:55:21.096 INFO [stderr]     Checking rust-ini v0.12.2
Dec 19 05:55:21.160 INFO [stderr]     Checking termcolor v1.0.4
Dec 19 05:55:21.680 INFO [stderr]     Checking memchr v0.1.11
Dec 19 05:55:22.204 INFO [stderr]     Checking arrayvec v0.4.7
Dec 19 05:55:22.460 INFO [stderr]    Compiling miniz-sys v0.1.10
Dec 19 05:55:22.753 INFO [stderr]    Compiling context v2.1.0
Dec 19 05:55:23.024 INFO [stderr]    Compiling rlua v0.15.2
Dec 19 05:55:23.592 INFO [stderr]     Checking unreachable v1.0.0
Dec 19 05:55:25.139 INFO [stderr]     Checking owning_ref v0.3.3
Dec 19 05:55:26.132 INFO [stderr]     Checking log v0.4.5
Dec 19 05:55:26.476 INFO [stderr]     Checking textwrap v0.10.0
Dec 19 05:55:26.802 INFO [stderr]     Checking regex-syntax v0.6.2
Dec 19 05:55:27.100 INFO [stderr]     Checking humantime v1.1.1
Dec 19 05:55:27.268 INFO [stderr]     Checking yaml-rust v0.4.2
Dec 19 05:55:27.566 INFO [stderr]     Checking iovec v0.1.2
Dec 19 05:55:27.604 INFO [stderr]     Checking rand v0.5.5
Dec 19 05:55:28.589 INFO [stderr]     Checking net2 v0.2.33
Dec 19 05:55:29.104 INFO [stderr]     Checking num_cpus v1.8.0
Dec 19 05:55:29.576 INFO [stderr]     Checking atty v0.2.11
Dec 19 05:55:29.828 INFO [stderr]     Checking walkdir v2.2.5
Dec 19 05:55:30.436 INFO [stderr]     Checking aho-corasick v0.5.3
Dec 19 05:55:30.576 INFO [stderr]     Checking smallvec v0.6.5
Dec 19 05:55:32.712 INFO [stderr]     Checking num-traits v0.2.6
Dec 19 05:55:34.076 INFO [stderr]     Checking ryu v0.2.6
Dec 19 05:55:34.871 INFO [stderr]     Checking serde v1.0.79
Dec 19 05:55:35.492 INFO [stderr]     Checking lock_api v0.1.4
Dec 19 05:55:37.263 INFO [stderr]     Checking bytes v0.4.10
Dec 19 05:55:42.000 INFO [stderr]     Checking lazy_static v1.1.0
Dec 19 05:55:42.048 INFO [stderr]     Checking memchr v2.1.0
Dec 19 05:55:42.460 INFO [stderr]     Checking kernel32-sys v0.2.2
Dec 19 05:55:42.965 INFO [stderr]     Checking tokio-io v0.1.9
Dec 19 05:55:43.632 INFO [stderr]     Checking clap v2.32.0
Dec 19 05:55:44.356 INFO [stderr]     Checking backtrace-sys v0.1.24
Dec 19 05:55:44.969 INFO [stderr]     Checking mio v0.6.16
Dec 19 05:55:45.414 INFO [stderr]     Checking tokio-executor v0.1.5
Dec 19 05:55:46.733 INFO [stderr]     Checking toml v0.4.7
Dec 19 05:55:51.428 INFO [stderr]     Checking nom v4.0.0
Dec 19 05:55:51.860 INFO [stderr]     Checking crossbeam-epoch v0.5.2
Dec 19 05:55:53.122 INFO [stderr]     Checking thread_local v0.3.6
Dec 19 05:55:53.456 INFO [stderr]     Checking thread-id v2.0.0
Dec 19 05:55:54.028 INFO [stderr]    Compiling syn v0.15.6
Dec 19 05:55:55.153 INFO [stderr]     Checking serde_test v0.8.23
Dec 19 05:55:55.740 INFO [stderr]     Checking backtrace v0.3.9
Dec 19 05:55:57.546 INFO [stderr]     Checking num-traits v0.1.43
Dec 19 05:55:58.166 INFO [stderr]     Checking aho-corasick v0.6.8
Dec 19 05:56:00.763 INFO [stderr]     Checking tokio-current-thread v0.1.3
Dec 19 05:56:01.402 INFO [stderr]     Checking tokio-timer v0.2.7
Dec 19 05:56:01.569 INFO [stderr]     Checking flate2 v1.0.2
Dec 19 05:56:03.098 INFO [stderr]     Checking tokio-codec v0.1.1
Dec 19 05:56:04.542 INFO [stderr]     Checking parking_lot_core v0.3.1
Dec 19 05:56:05.584 INFO [stderr]     Checking thread_local v0.2.7
Dec 19 05:56:08.010 INFO [stderr]     Checking mio-uds v0.6.7
Dec 19 05:56:08.429 INFO [stderr]     Checking crossbeam-deque v0.6.1
Dec 19 05:56:08.544 INFO [stderr]     Checking linked-hash-map v0.3.0
Dec 19 05:56:09.550 INFO [stderr]     Checking regex v1.0.5
Dec 19 05:56:09.912 INFO [stderr]     Checking tokio-threadpool v0.1.7
Dec 19 05:56:10.320 INFO [stderr]     Checking regex v0.1.80
Dec 19 05:56:10.676 INFO [stderr]     Checking parking_lot v0.6.4
Dec 19 05:56:11.306 INFO [stderr]     Checking structopt v0.2.10
Dec 19 05:56:12.664 INFO [stderr]     Checking tokio-reactor v0.1.6
Dec 19 05:56:13.868 INFO [stderr]     Checking once_cell v0.1.6
Dec 19 05:56:15.454 INFO [stderr]     Checking failure v0.1.2
Dec 19 05:56:21.468 INFO [stderr]     Checking tokio-fs v0.1.3
Dec 19 05:56:21.600 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 19 05:56:21.848 INFO [stderr]     Checking tokio-udp v0.1.2
Dec 19 05:56:23.341 INFO [stderr]     Checking tokio-uds v0.2.2
Dec 19 05:56:25.036 INFO [stderr]     Checking env_logger v0.5.13
Dec 19 05:56:25.352 INFO [stderr]     Checking serde-hjson v0.8.1
Dec 19 05:56:28.856 INFO [stderr]     Checking tokio v0.1.11
Dec 19 05:56:28.900 INFO [stderr]    Compiling serde_derive v1.0.79
Dec 19 05:56:30.157 INFO [stderr]     Checking config v0.9.1
Dec 19 05:56:32.360 INFO [stderr]     Checking serde_json v1.0.31
Dec 19 05:56:32.936 INFO [stderr]     Checking corona v0.4.0
Dec 19 05:56:49.335 INFO [stderr]     Checking mix v0.1.0 (/opt/crater/workdir)
Dec 19 05:56:50.868 INFO [stderr] warning: method is never used: `new`
Dec 19 05:56:50.869 INFO [stderr]   --> src/mailbox/task.rs:12:5
Dec 19 05:56:50.869 INFO [stderr]    |
Dec 19 05:56:50.869 INFO [stderr] 12 |     pub fn new(inner: Arc<T>) -> Self {
Dec 19 05:56:50.869 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:56:50.870 INFO [stderr]    |
Dec 19 05:56:50.870 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 05:56:50.870 INFO [stderr] 
Dec 19 05:56:50.870 INFO [stderr] warning: method is never used: `into_inner`
Dec 19 05:56:50.870 INFO [stderr]   --> src/mailbox/task.rs:15:5
Dec 19 05:56:50.870 INFO [stderr]    |
Dec 19 05:56:50.871 INFO [stderr] 15 |     pub fn into_inner(self) -> Arc<T> {
Dec 19 05:56:50.871 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:56:50.871 INFO [stderr] 
Dec 19 05:56:50.871 INFO [stderr] warning: method is never used: `perform`
Dec 19 05:56:50.871 INFO [stderr]   --> src/mailbox/task.rs:72:5
Dec 19 05:56:50.871 INFO [stderr]    |
Dec 19 05:56:50.871 INFO [stderr] 72 |     fn perform(self) {
Dec 19 05:56:50.871 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 05:56:50.871 INFO [stderr] 
Dec 19 05:56:50.871 INFO [stderr] warning: method is never used: `pop`
Dec 19 05:56:50.871 INFO [stderr]   --> src/mailbox/task.rs:91:5
Dec 19 05:56:50.871 INFO [stderr]    |
Dec 19 05:56:50.871 INFO [stderr] 91 |     fn pop(&mut self) -> Option<Task> {
Dec 19 05:56:50.871 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:56:50.871 INFO [stderr] 
Dec 19 05:56:50.871 INFO [stderr] warning: method is never used: `turn`
Dec 19 05:56:50.871 INFO [stderr]    --> src/mailbox/task.rs:103:5
Dec 19 05:56:50.871 INFO [stderr]     |
Dec 19 05:56:50.871 INFO [stderr] 103 |     pub(super) fn turn(&mut self) -> bool {
Dec 19 05:56:50.871 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:56:50.871 INFO [stderr] 
Dec 19 05:56:50.871 INFO [stderr] warning: variant is never constructed: `MailboxContent`
Dec 19 05:56:50.871 INFO [stderr]    --> src/mailbox.rs:151:5
Dec 19 05:56:50.871 INFO [stderr]     |
Dec 19 05:56:50.871 INFO [stderr] 151 |     MailboxContent(Arc<Mailbox>),
Dec 19 05:56:50.872 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:56:50.872 INFO [stderr] 
Dec 19 05:56:50.907 INFO [stderr] warning: method is never used: `new`
Dec 19 05:56:50.907 INFO [stderr]   --> src/mailbox/task.rs:12:5
Dec 19 05:56:50.907 INFO [stderr]    |
Dec 19 05:56:50.907 INFO [stderr] 12 |     pub fn new(inner: Arc<T>) -> Self {
Dec 19 05:56:50.907 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:56:50.907 INFO [stderr]    |
Dec 19 05:56:50.907 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 05:56:50.907 INFO [stderr] 
Dec 19 05:56:50.907 INFO [stderr] warning: method is never used: `into_inner`
Dec 19 05:56:50.907 INFO [stderr]   --> src/mailbox/task.rs:15:5
Dec 19 05:56:50.907 INFO [stderr]    |
Dec 19 05:56:50.907 INFO [stderr] 15 |     pub fn into_inner(self) -> Arc<T> {
Dec 19 05:56:50.907 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:56:50.907 INFO [stderr] 
Dec 19 05:56:50.907 INFO [stderr] warning: method is never used: `perform`
Dec 19 05:56:50.907 INFO [stderr]   --> src/mailbox/task.rs:72:5
Dec 19 05:56:50.907 INFO [stderr]    |
Dec 19 05:56:50.907 INFO [stderr] 72 |     fn perform(self) {
Dec 19 05:56:50.907 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 05:56:50.907 INFO [stderr] 
Dec 19 05:56:50.907 INFO [stderr] warning: method is never used: `pop`
Dec 19 05:56:50.907 INFO [stderr]   --> src/mailbox/task.rs:91:5
Dec 19 05:56:50.907 INFO [stderr]    |
Dec 19 05:56:50.907 INFO [stderr] 91 |     fn pop(&mut self) -> Option<Task> {
Dec 19 05:56:50.907 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:56:50.907 INFO [stderr] 
Dec 19 05:56:50.907 INFO [stderr] warning: method is never used: `turn`
Dec 19 05:56:50.908 INFO [stderr]    --> src/mailbox/task.rs:103:5
Dec 19 05:56:50.908 INFO [stderr]     |
Dec 19 05:56:50.908 INFO [stderr] 103 |     pub(super) fn turn(&mut self) -> bool {
Dec 19 05:56:50.908 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:56:50.908 INFO [stderr] 
Dec 19 05:56:50.908 INFO [stderr] warning: variant is never constructed: `MailboxContent`
Dec 19 05:56:50.908 INFO [stderr]    --> src/mailbox.rs:151:5
Dec 19 05:56:50.908 INFO [stderr]     |
Dec 19 05:56:50.908 INFO [stderr] 151 |     MailboxContent(Arc<Mailbox>),
Dec 19 05:56:50.908 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:56:50.908 INFO [stderr] 
Dec 19 05:56:50.969 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 38s
Dec 19 05:56:52.545 INFO running `"docker" "inspect" "b092bbdff69d8e5bb991912059c4828d8c9ea9e40cf28a85b6a264a71bc78a37"`
Dec 19 05:56:52.886 INFO running `"docker" "rm" "-f" "b092bbdff69d8e5bb991912059c4828d8c9ea9e40cf28a85b6a264a71bc78a37"`
Dec 19 05:56:53.292 INFO [stdout] b092bbdff69d8e5bb991912059c4828d8c9ea9e40cf28a85b6a264a71bc78a37