Dec 04 07:29:30.764 INFO checking vorner/mix against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 07:29:30.764 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 07:29:31.284 INFO [stdout] 6d74e61280f9b3f32e1327104c5d9757764d11e7bf4353283928023c7559cb00
Dec 04 07:29:31.287 INFO running `"docker" "start" "-a" "6d74e61280f9b3f32e1327104c5d9757764d11e7bf4353283928023c7559cb00"`
Dec 04 07:29:33.487 INFO [stderr] usermod: no changes
Dec 04 07:29:33.889 INFO [stderr]     Checking void v1.0.2
Dec 04 07:29:33.891 INFO [stderr]     Checking rand_core v0.2.1
Dec 04 07:29:33.891 INFO [stderr]     Checking libc v0.2.43
Dec 04 07:29:33.891 INFO [stderr]     Checking nodrop v0.1.12
Dec 04 07:29:33.895 INFO [stderr]     Checking stable_deref_trait v1.1.1
Dec 04 07:29:33.895 INFO [stderr]     Checking crossbeam-utils v0.5.0
Dec 04 07:29:33.896 INFO [stderr]     Checking memoffset v0.2.1
Dec 04 07:29:33.896 INFO [stderr]     Checking cfg-if v0.1.5
Dec 04 07:29:34.559 INFO [stderr]     Checking winapi v0.2.8
Dec 04 07:29:34.559 INFO [stderr]     Checking scopeguard v0.3.3
Dec 04 07:29:34.588 INFO [stderr]     Checking byteorder v1.2.6
Dec 04 07:29:34.595 INFO [stderr]     Checking futures v0.1.24
Dec 04 07:29:35.083 INFO [stderr]     Checking slab v0.4.1
Dec 04 07:29:35.463 INFO [stderr]     Checking lazycell v1.2.0
Dec 04 07:29:35.527 INFO [stderr]     Checking serde v0.8.23
Dec 04 07:29:36.420 INFO [stderr]    Compiling failure_derive v0.1.2
Dec 04 07:29:36.475 INFO [stderr]    Compiling serde v1.0.79
Dec 04 07:29:36.799 INFO [stderr]     Checking utf8-ranges v0.1.3
Dec 04 07:29:39.253 INFO [stderr]     Checking unicode-width v0.1.5
Dec 04 07:29:39.457 INFO [stderr]     Checking ucd-util v0.1.1
Dec 04 07:29:39.660 INFO [stderr]     Checking rustc-demangle v0.1.9
Dec 04 07:29:40.380 INFO [stderr]     Checking regex-syntax v0.3.9
Dec 04 07:29:40.727 INFO [stderr]     Checking itoa v0.4.3
Dec 04 07:29:41.048 INFO [stderr]     Checking strsim v0.7.0
Dec 04 07:29:41.235 INFO [stderr]     Checking bitflags v1.0.4
Dec 04 07:29:41.929 INFO [stderr]     Checking utf8-ranges v1.0.1
Dec 04 07:29:42.675 INFO [stderr]     Checking ansi_term v0.11.0
Dec 04 07:29:42.736 INFO [stderr]     Checking quick-error v1.2.2
Dec 04 07:29:43.231 INFO [stderr]     Checking lazy_static v0.2.11
Dec 04 07:29:43.985 INFO [stderr]     Checking linked-hash-map v0.5.1
Dec 04 07:29:44.267 INFO [stderr]     Checking vec_map v0.8.1
Dec 04 07:29:44.451 INFO [stderr]     Checking termcolor v1.0.4
Dec 04 07:29:45.683 INFO [stderr]     Checking rust-ini v0.12.2
Dec 04 07:29:46.611 INFO [stderr]     Checking same-file v1.0.3
Dec 04 07:29:47.777 INFO [stderr]     Checking memchr v0.1.11
Dec 04 07:29:48.113 INFO [stderr]     Checking unreachable v1.0.0
Dec 04 07:29:48.228 INFO [stderr]     Checking log v0.4.5
Dec 04 07:29:48.809 INFO [stderr]    Compiling miniz-sys v0.1.10
Dec 04 07:29:48.951 INFO [stderr]    Compiling context v2.1.0
Dec 04 07:29:50.025 INFO [stderr]    Compiling rlua v0.15.2
Dec 04 07:29:51.360 INFO [stderr]     Checking arrayvec v0.4.7
Dec 04 07:29:52.519 INFO [stderr]     Checking owning_ref v0.3.3
Dec 04 07:29:53.301 INFO [stderr]     Checking textwrap v0.10.0
Dec 04 07:29:53.331 INFO [stderr]     Checking regex-syntax v0.6.2
Dec 04 07:29:54.204 INFO [stderr]     Checking iovec v0.1.2
Dec 04 07:29:54.285 INFO [stderr]     Checking rand v0.5.5
Dec 04 07:29:54.512 INFO [stderr]     Checking net2 v0.2.33
Dec 04 07:29:55.047 INFO [stderr]     Checking num_cpus v1.8.0
Dec 04 07:29:55.495 INFO [stderr]     Checking atty v0.2.11
Dec 04 07:29:55.504 INFO [stderr]     Checking yaml-rust v0.4.2
Dec 04 07:29:55.815 INFO [stderr]     Checking humantime v1.1.1
Dec 04 07:29:56.466 INFO [stderr]     Checking walkdir v2.2.5
Dec 04 07:29:58.607 INFO [stderr]     Checking smallvec v0.6.5
Dec 04 07:29:59.191 INFO [stderr]     Checking aho-corasick v0.5.3
Dec 04 07:30:02.344 INFO [stderr]     Checking mio v0.6.16
Dec 04 07:30:02.559 INFO [stderr]     Checking num-traits v0.2.6
Dec 04 07:30:03.105 INFO [stderr]     Checking ryu v0.2.6
Dec 04 07:30:05.979 INFO [stderr]     Checking lock_api v0.1.4
Dec 04 07:30:07.643 INFO [stderr]     Checking tokio-executor v0.1.5
Dec 04 07:30:10.083 INFO [stderr]     Checking bytes v0.4.10
Dec 04 07:30:12.187 INFO [stderr]     Checking clap v2.32.0
Dec 04 07:30:12.451 INFO [stderr]     Checking lazy_static v1.1.0
Dec 04 07:30:13.308 INFO [stderr]     Checking memchr v2.1.0
Dec 04 07:30:14.947 INFO [stderr]     Checking kernel32-sys v0.2.2
Dec 04 07:30:16.071 INFO [stderr]     Checking tokio-io v0.1.9
Dec 04 07:30:17.207 INFO [stderr]     Checking backtrace-sys v0.1.24
Dec 04 07:30:18.296 INFO [stderr]     Checking num-traits v0.1.43
Dec 04 07:30:19.655 INFO [stderr]     Checking serde_test v0.8.23
Dec 04 07:30:21.365 INFO [stderr]     Checking tokio-timer v0.2.7
Dec 04 07:30:21.844 INFO [stderr]     Checking tokio-current-thread v0.1.3
Dec 04 07:30:23.463 INFO [stderr]     Checking mio-uds v0.6.7
Dec 04 07:30:24.929 INFO [stderr]     Checking crossbeam-epoch v0.5.2
Dec 04 07:30:25.675 INFO [stderr]     Checking thread_local v0.3.6
Dec 04 07:30:26.063 INFO [stderr]     Checking nom v4.0.0
Dec 04 07:30:26.271 INFO [stderr]     Checking thread-id v2.0.0
Dec 04 07:30:27.335 INFO [stderr]    Compiling syn v0.14.9
Dec 04 07:30:27.613 INFO [stderr]    Compiling syn v0.15.6
Dec 04 07:30:28.348 INFO [stderr]     Checking backtrace v0.3.9
Dec 04 07:30:31.207 INFO [stderr]     Checking aho-corasick v0.6.8
Dec 04 07:30:35.883 INFO [stderr]     Checking flate2 v1.0.2
Dec 04 07:30:39.938 INFO [stderr]     Checking tokio-codec v0.1.1
Dec 04 07:30:40.965 INFO [stderr]     Checking parking_lot_core v0.3.1
Dec 04 07:30:43.847 INFO [stderr]     Checking linked-hash-map v0.3.0
Dec 04 07:30:43.867 INFO [stderr]     Checking thread_local v0.2.7
Dec 04 07:30:45.703 INFO [stderr]     Checking crossbeam-deque v0.6.1
Dec 04 07:30:46.775 INFO [stderr]     Checking regex v1.0.5
Dec 04 07:30:56.454 INFO [stderr]     Checking tokio-threadpool v0.1.7
Dec 04 07:30:56.567 INFO [stderr]     Checking env_logger v0.5.13
Dec 04 07:30:56.745 INFO [stderr]     Checking parking_lot v0.6.4
Dec 04 07:30:56.951 INFO [stderr]     Checking regex v0.1.80
Dec 04 07:30:59.731 INFO [stderr]     Checking toml v0.4.7
Dec 04 07:30:59.835 INFO [stderr]     Checking serde_json v1.0.31
Dec 04 07:31:13.331 INFO [stderr]    Compiling serde_derive v1.0.79
Dec 04 07:31:13.899 INFO [stderr]     Checking tokio-reactor v0.1.6
Dec 04 07:31:13.983 INFO [stderr]     Checking once_cell v0.1.6
Dec 04 07:31:16.337 INFO [stderr]     Checking tokio-fs v0.1.3
Dec 04 07:31:17.961 INFO [stderr]     Checking serde-hjson v0.8.1
Dec 04 07:31:19.965 INFO [stderr]    Compiling synstructure v0.9.0
Dec 04 07:31:20.162 INFO [stderr]    Compiling structopt-derive v0.2.10
Dec 04 07:31:21.127 INFO [stderr]     Checking tokio-udp v0.1.2
Dec 04 07:31:24.809 INFO [stderr]     Checking tokio-uds v0.2.2
Dec 04 07:31:24.949 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 04 07:31:34.887 INFO [stderr]     Checking config v0.9.1
Dec 04 07:31:35.095 INFO [stderr]     Checking tokio v0.1.11
Dec 04 07:31:39.613 INFO [stderr]     Checking structopt v0.2.10
Dec 04 07:31:40.901 INFO [stderr]     Checking corona v0.4.0
Dec 04 07:31:44.849 INFO [stderr]     Checking failure v0.1.2
Dec 04 07:31:55.374 INFO [stderr]     Checking mix v0.1.0 (/source)
Dec 04 07:31:56.435 INFO [stderr] warning: method is never used: `new`
Dec 04 07:31:56.435 INFO [stderr]   --> src/mailbox/task.rs:12:5
Dec 04 07:31:56.435 INFO [stderr]    |
Dec 04 07:31:56.435 INFO [stderr] 12 |     pub fn new(inner: Arc<T>) -> Self {
Dec 04 07:31:56.435 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:31:56.435 INFO [stderr]    |
Dec 04 07:31:56.435 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 07:31:56.435 INFO [stderr] 
Dec 04 07:31:56.435 INFO [stderr] warning: method is never used: `into_inner`
Dec 04 07:31:56.435 INFO [stderr]   --> src/mailbox/task.rs:15:5
Dec 04 07:31:56.435 INFO [stderr]    |
Dec 04 07:31:56.435 INFO [stderr] 15 |     pub fn into_inner(self) -> Arc<T> {
Dec 04 07:31:56.435 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:31:56.435 INFO [stderr] 
Dec 04 07:31:56.435 INFO [stderr] warning: method is never used: `perform`
Dec 04 07:31:56.435 INFO [stderr]   --> src/mailbox/task.rs:72:5
Dec 04 07:31:56.435 INFO [stderr]    |
Dec 04 07:31:56.435 INFO [stderr] 72 |     fn perform(self) {
Dec 04 07:31:56.435 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 04 07:31:56.435 INFO [stderr] 
Dec 04 07:31:56.435 INFO [stderr] warning: method is never used: `pop`
Dec 04 07:31:56.435 INFO [stderr]   --> src/mailbox/task.rs:91:5
Dec 04 07:31:56.435 INFO [stderr]    |
Dec 04 07:31:56.435 INFO [stderr] 91 |     fn pop(&mut self) -> Option<Task> {
Dec 04 07:31:56.435 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:31:56.435 INFO [stderr] 
Dec 04 07:31:56.435 INFO [stderr] warning: method is never used: `turn`
Dec 04 07:31:56.435 INFO [stderr]    --> src/mailbox/task.rs:103:5
Dec 04 07:31:56.435 INFO [stderr]     |
Dec 04 07:31:56.435 INFO [stderr] 103 |     pub(super) fn turn(&mut self) -> bool {
Dec 04 07:31:56.435 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:31:56.435 INFO [stderr] 
Dec 04 07:31:56.435 INFO [stderr] warning: variant is never constructed: `MailboxContent`
Dec 04 07:31:56.435 INFO [stderr]    --> src/mailbox.rs:151:5
Dec 04 07:31:56.435 INFO [stderr]     |
Dec 04 07:31:56.435 INFO [stderr] 151 |     MailboxContent(Arc<Mailbox>),
Dec 04 07:31:56.435 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:31:56.435 INFO [stderr] 
Dec 04 07:31:56.487 INFO [stderr] warning: method is never used: `new`
Dec 04 07:31:56.487 INFO [stderr]   --> src/mailbox/task.rs:12:5
Dec 04 07:31:56.487 INFO [stderr]    |
Dec 04 07:31:56.487 INFO [stderr] 12 |     pub fn new(inner: Arc<T>) -> Self {
Dec 04 07:31:56.487 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:31:56.487 INFO [stderr]    |
Dec 04 07:31:56.487 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 07:31:56.487 INFO [stderr] 
Dec 04 07:31:56.487 INFO [stderr] warning: method is never used: `into_inner`
Dec 04 07:31:56.487 INFO [stderr]   --> src/mailbox/task.rs:15:5
Dec 04 07:31:56.487 INFO [stderr]    |
Dec 04 07:31:56.487 INFO [stderr] 15 |     pub fn into_inner(self) -> Arc<T> {
Dec 04 07:31:56.487 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:31:56.487 INFO [stderr] 
Dec 04 07:31:56.487 INFO [stderr] warning: method is never used: `perform`
Dec 04 07:31:56.487 INFO [stderr]   --> src/mailbox/task.rs:72:5
Dec 04 07:31:56.487 INFO [stderr]    |
Dec 04 07:31:56.487 INFO [stderr] 72 |     fn perform(self) {
Dec 04 07:31:56.487 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 04 07:31:56.487 INFO [stderr] 
Dec 04 07:31:56.487 INFO [stderr] warning: method is never used: `pop`
Dec 04 07:31:56.487 INFO [stderr]   --> src/mailbox/task.rs:91:5
Dec 04 07:31:56.487 INFO [stderr]    |
Dec 04 07:31:56.487 INFO [stderr] 91 |     fn pop(&mut self) -> Option<Task> {
Dec 04 07:31:56.487 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:31:56.487 INFO [stderr] 
Dec 04 07:31:56.487 INFO [stderr] warning: method is never used: `turn`
Dec 04 07:31:56.487 INFO [stderr]    --> src/mailbox/task.rs:103:5
Dec 04 07:31:56.487 INFO [stderr]     |
Dec 04 07:31:56.487 INFO [stderr] 103 |     pub(super) fn turn(&mut self) -> bool {
Dec 04 07:31:56.487 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:31:56.487 INFO [stderr] 
Dec 04 07:31:56.487 INFO [stderr] warning: variant is never constructed: `MailboxContent`
Dec 04 07:31:56.487 INFO [stderr]    --> src/mailbox.rs:151:5
Dec 04 07:31:56.487 INFO [stderr]     |
Dec 04 07:31:56.487 INFO [stderr] 151 |     MailboxContent(Arc<Mailbox>),
Dec 04 07:31:56.487 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:31:56.487 INFO [stderr] 
Dec 04 07:31:56.530 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 23s
Dec 04 07:31:56.551 INFO [stderr] su: No module specific data is present
Dec 04 07:31:57.129 INFO running `"docker" "inspect" "6d74e61280f9b3f32e1327104c5d9757764d11e7bf4353283928023c7559cb00"`
Dec 04 07:31:57.447 INFO running `"docker" "rm" "-f" "6d74e61280f9b3f32e1327104c5d9757764d11e7bf4353283928023c7559cb00"`
Dec 04 07:31:57.726 INFO [stdout] 6d74e61280f9b3f32e1327104c5d9757764d11e7bf4353283928023c7559cb00