Dec 11 06:35:29.867 INFO checking vorner/mix against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 06:35:29.867 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 06:35:30.438 INFO [stdout] 80e9c0e3aef97147a9df9eae2d772f625e67875aba4b0b594890b470e742f20d
Dec 11 06:35:30.440 INFO running `"docker" "start" "-a" "80e9c0e3aef97147a9df9eae2d772f625e67875aba4b0b594890b470e742f20d"`
Dec 11 06:35:33.002 INFO [stderr] usermod: no changes
Dec 11 06:35:33.491 INFO [stderr]    Compiling proc-macro2 v0.4.19
Dec 11 06:35:33.491 INFO [stderr]     Checking void v1.0.2
Dec 11 06:35:33.504 INFO [stderr]     Checking stable_deref_trait v1.1.1
Dec 11 06:35:33.505 INFO [stderr]     Checking rand_core v0.2.1
Dec 11 06:35:33.508 INFO [stderr]     Checking nodrop v0.1.12
Dec 11 06:35:33.508 INFO [stderr]     Checking libc v0.2.43
Dec 11 06:35:33.528 INFO [stderr]     Checking memoffset v0.2.1
Dec 11 06:35:33.560 INFO [stderr]     Checking scopeguard v0.3.3
Dec 11 06:35:34.250 INFO [stderr]     Checking winapi v0.2.8
Dec 11 06:35:34.289 INFO [stderr]     Checking byteorder v1.2.6
Dec 11 06:35:34.369 INFO [stderr]     Checking crossbeam-utils v0.5.0
Dec 11 06:35:34.386 INFO [stderr]     Checking cfg-if v0.1.5
Dec 11 06:35:34.662 INFO [stderr]     Checking lazycell v1.2.0
Dec 11 06:35:35.041 INFO [stderr]     Checking futures v0.1.24
Dec 11 06:35:35.638 INFO [stderr]     Checking slab v0.4.1
Dec 11 06:35:37.040 INFO [stderr]     Checking serde v0.8.23
Dec 11 06:35:37.075 INFO [stderr]    Compiling failure_derive v0.1.2
Dec 11 06:35:37.490 INFO [stderr]     Checking regex-syntax v0.3.9
Dec 11 06:35:37.890 INFO [stderr]     Checking rustc-demangle v0.1.9
Dec 11 06:35:38.309 INFO [stderr]     Checking unicode-width v0.1.5
Dec 11 06:35:39.464 INFO [stderr]     Checking ucd-util v0.1.1
Dec 11 06:35:39.464 INFO [stderr]     Checking utf8-ranges v0.1.3
Dec 11 06:35:39.549 INFO [stderr]     Checking utf8-ranges v1.0.1
Dec 11 06:35:40.806 INFO [stderr]     Checking lazy_static v0.2.11
Dec 11 06:35:41.200 INFO [stderr]     Checking quick-error v1.2.2
Dec 11 06:35:41.324 INFO [stderr]     Checking bitflags v1.0.4
Dec 11 06:35:41.472 INFO [stderr]     Checking vec_map v0.8.1
Dec 11 06:35:41.868 INFO [stderr]     Checking itoa v0.4.3
Dec 11 06:35:42.048 INFO [stderr]     Checking ansi_term v0.11.0
Dec 11 06:35:42.468 INFO [stderr]     Checking linked-hash-map v0.5.1
Dec 11 06:35:43.316 INFO [stderr]     Checking strsim v0.7.0
Dec 11 06:35:43.444 INFO [stderr]     Checking termcolor v1.0.4
Dec 11 06:35:43.484 INFO [stderr]     Checking same-file v1.0.3
Dec 11 06:35:45.050 INFO [stderr]     Checking rust-ini v0.12.2
Dec 11 06:35:45.245 INFO [stderr]    Compiling memchr v2.1.0
Dec 11 06:35:45.814 INFO [stderr]    Compiling context v2.1.0
Dec 11 06:35:46.142 INFO [stderr]    Compiling miniz-sys v0.1.10
Dec 11 06:35:46.338 INFO [stderr]    Compiling rlua v0.15.2
Dec 11 06:35:48.563 INFO [stderr]     Checking log v0.4.5
Dec 11 06:35:48.574 INFO [stderr]     Checking unreachable v1.0.0
Dec 11 06:35:48.682 INFO [stderr]     Checking arrayvec v0.4.7
Dec 11 06:35:49.350 INFO [stderr]     Checking owning_ref v0.3.3
Dec 11 06:35:51.013 INFO [stderr]     Checking textwrap v0.10.0
Dec 11 06:35:51.140 INFO [stderr]     Checking regex-syntax v0.6.2
Dec 11 06:35:51.355 INFO [stderr]     Checking iovec v0.1.2
Dec 11 06:35:51.560 INFO [stderr]     Checking rand v0.5.5
Dec 11 06:35:52.356 INFO [stderr]     Checking net2 v0.2.33
Dec 11 06:35:52.600 INFO [stderr]     Checking num_cpus v1.8.0
Dec 11 06:35:52.819 INFO [stderr]     Checking memchr v0.1.11
Dec 11 06:35:52.854 INFO [stderr]     Checking atty v0.2.11
Dec 11 06:35:53.627 INFO [stderr]     Checking humantime v1.1.1
Dec 11 06:35:54.416 INFO [stderr]     Checking walkdir v2.2.5
Dec 11 06:35:54.773 INFO [stderr]     Checking yaml-rust v0.4.2
Dec 11 06:35:57.028 INFO [stderr]     Checking smallvec v0.6.5
Dec 11 06:35:59.264 INFO [stderr]     Checking num-traits v0.2.6
Dec 11 06:35:59.296 INFO [stderr]     Checking serde v1.0.79
Dec 11 06:35:59.459 INFO [stderr]     Checking ryu v0.2.6
Dec 11 06:36:02.732 INFO [stderr]     Checking mio v0.6.16
Dec 11 06:36:04.625 INFO [stderr]     Checking lock_api v0.1.4
Dec 11 06:36:05.308 INFO [stderr]     Checking bytes v0.4.10
Dec 11 06:36:06.806 INFO [stderr]     Checking aho-corasick v0.5.3
Dec 11 06:36:07.988 INFO [stderr]     Checking clap v2.32.0
Dec 11 06:36:11.504 INFO [stderr]     Checking tokio-executor v0.1.5
Dec 11 06:36:12.900 INFO [stderr]     Checking lazy_static v1.1.0
Dec 11 06:36:12.998 INFO [stderr]     Checking kernel32-sys v0.2.2
Dec 11 06:36:13.440 INFO [stderr]     Checking tokio-io v0.1.9
Dec 11 06:36:13.503 INFO [stderr]     Checking backtrace-sys v0.1.24
Dec 11 06:36:14.080 INFO [stderr]     Checking toml v0.4.7
Dec 11 06:36:17.122 INFO [stderr]     Checking serde_test v0.8.23
Dec 11 06:36:18.017 INFO [stderr]     Checking num-traits v0.1.43
Dec 11 06:36:18.938 INFO [stderr]     Checking mio-uds v0.6.7
Dec 11 06:36:19.139 INFO [stderr]    Compiling quote v0.6.8
Dec 11 06:36:19.965 INFO [stderr]     Checking crossbeam-epoch v0.5.2
Dec 11 06:36:20.283 INFO [stderr]     Checking thread_local v0.3.6
Dec 11 06:36:23.127 INFO [stderr]     Checking tokio-timer v0.2.7
Dec 11 06:36:23.145 INFO [stderr]     Checking tokio-current-thread v0.1.3
Dec 11 06:36:23.166 INFO [stderr]     Checking backtrace v0.3.9
Dec 11 06:36:23.272 INFO [stderr]     Checking thread-id v2.0.0
Dec 11 06:36:24.603 INFO [stderr]     Checking flate2 v1.0.2
Dec 11 06:36:25.480 INFO [stderr]     Checking aho-corasick v0.6.8
Dec 11 06:36:25.704 INFO [stderr]     Checking nom v4.0.0
Dec 11 06:36:27.828 INFO [stderr]     Checking parking_lot_core v0.3.1
Dec 11 06:36:28.376 INFO [stderr]     Checking tokio-codec v0.1.1
Dec 11 06:36:29.809 INFO [stderr]     Checking crossbeam-deque v0.6.1
Dec 11 06:36:30.030 INFO [stderr]    Compiling syn v0.14.9
Dec 11 06:36:30.155 INFO [stderr]    Compiling syn v0.15.6
Dec 11 06:36:30.822 INFO [stderr]     Checking linked-hash-map v0.3.0
Dec 11 06:36:31.228 INFO [stderr]     Checking thread_local v0.2.7
Dec 11 06:36:32.072 INFO [stderr]     Checking regex v1.0.5
Dec 11 06:36:33.136 INFO [stderr]     Checking tokio-threadpool v0.1.7
Dec 11 06:36:33.336 INFO [stderr]     Checking parking_lot v0.6.4
Dec 11 06:36:35.760 INFO [stderr]     Checking regex v0.1.80
Dec 11 06:36:38.628 INFO [stderr]     Checking tokio-reactor v0.1.6
Dec 11 06:36:39.408 INFO [stderr]     Checking once_cell v0.1.6
Dec 11 06:36:41.634 INFO [stderr]     Checking serde-hjson v0.8.1
Dec 11 06:36:44.612 INFO [stderr]     Checking tokio-fs v0.1.3
Dec 11 06:36:46.300 INFO [stderr]     Checking tokio-uds v0.2.2
Dec 11 06:36:47.725 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 11 06:36:48.193 INFO [stderr]     Checking tokio-udp v0.1.2
Dec 11 06:36:49.638 INFO [stderr]     Checking env_logger v0.5.13
Dec 11 06:36:51.121 INFO [stderr]     Checking serde_json v1.0.31
Dec 11 06:36:55.465 INFO [stderr]     Checking config v0.9.1
Dec 11 06:36:58.413 INFO [stderr]     Checking tokio v0.1.11
Dec 11 06:37:04.140 INFO [stderr]     Checking corona v0.4.0
Dec 11 06:37:13.068 INFO [stderr]    Compiling serde_derive v1.0.79
Dec 11 06:37:16.547 INFO [stderr]    Compiling synstructure v0.9.0
Dec 11 06:37:16.547 INFO [stderr]    Compiling structopt-derive v0.2.10
Dec 11 06:37:25.547 INFO [stderr]     Checking structopt v0.2.10
Dec 11 06:37:28.934 INFO [stderr]     Checking failure v0.1.2
Dec 11 06:37:45.124 INFO [stderr]     Checking mix v0.1.0 (/source)
Dec 11 06:37:46.960 INFO [stderr] warning: method is never used: `new`
Dec 11 06:37:46.960 INFO [stderr]   --> src/mailbox/task.rs:12:5
Dec 11 06:37:46.960 INFO [stderr]    |
Dec 11 06:37:46.960 INFO [stderr] 12 |     pub fn new(inner: Arc<T>) -> Self {
Dec 11 06:37:46.960 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:46.960 INFO [stderr]    |
Dec 11 06:37:46.960 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 06:37:46.960 INFO [stderr] 
Dec 11 06:37:46.964 INFO [stderr] warning: method is never used: `into_inner`
Dec 11 06:37:46.964 INFO [stderr]   --> src/mailbox/task.rs:15:5
Dec 11 06:37:46.964 INFO [stderr]    |
Dec 11 06:37:46.964 INFO [stderr] 15 |     pub fn into_inner(self) -> Arc<T> {
Dec 11 06:37:46.964 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:46.964 INFO [stderr] 
Dec 11 06:37:46.964 INFO [stderr] warning: method is never used: `perform`
Dec 11 06:37:46.964 INFO [stderr]   --> src/mailbox/task.rs:72:5
Dec 11 06:37:46.964 INFO [stderr]    |
Dec 11 06:37:46.964 INFO [stderr] 72 |     fn perform(self) {
Dec 11 06:37:46.964 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 11 06:37:46.964 INFO [stderr] 
Dec 11 06:37:46.964 INFO [stderr] warning: method is never used: `pop`
Dec 11 06:37:46.964 INFO [stderr]   --> src/mailbox/task.rs:91:5
Dec 11 06:37:46.964 INFO [stderr]    |
Dec 11 06:37:46.964 INFO [stderr] 91 |     fn pop(&mut self) -> Option<Task> {
Dec 11 06:37:46.964 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:46.964 INFO [stderr] 
Dec 11 06:37:46.964 INFO [stderr] warning: method is never used: `turn`
Dec 11 06:37:46.964 INFO [stderr]    --> src/mailbox/task.rs:103:5
Dec 11 06:37:46.964 INFO [stderr]     |
Dec 11 06:37:46.964 INFO [stderr] 103 |     pub(super) fn turn(&mut self) -> bool {
Dec 11 06:37:46.964 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:46.964 INFO [stderr] 
Dec 11 06:37:46.964 INFO [stderr] warning: variant is never constructed: `MailboxContent`
Dec 11 06:37:46.964 INFO [stderr]    --> src/mailbox.rs:151:5
Dec 11 06:37:46.964 INFO [stderr]     |
Dec 11 06:37:46.964 INFO [stderr] 151 |     MailboxContent(Arc<Mailbox>),
Dec 11 06:37:46.964 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:46.964 INFO [stderr] 
Dec 11 06:37:47.317 INFO [stderr] warning: method is never used: `new`
Dec 11 06:37:47.317 INFO [stderr]   --> src/mailbox/task.rs:12:5
Dec 11 06:37:47.317 INFO [stderr]    |
Dec 11 06:37:47.317 INFO [stderr] 12 |     pub fn new(inner: Arc<T>) -> Self {
Dec 11 06:37:47.317 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:47.317 INFO [stderr]    |
Dec 11 06:37:47.317 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 06:37:47.317 INFO [stderr] 
Dec 11 06:37:47.317 INFO [stderr] warning: method is never used: `into_inner`
Dec 11 06:37:47.317 INFO [stderr]   --> src/mailbox/task.rs:15:5
Dec 11 06:37:47.317 INFO [stderr]    |
Dec 11 06:37:47.317 INFO [stderr] 15 |     pub fn into_inner(self) -> Arc<T> {
Dec 11 06:37:47.317 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:47.317 INFO [stderr] 
Dec 11 06:37:47.317 INFO [stderr] warning: method is never used: `perform`
Dec 11 06:37:47.317 INFO [stderr]   --> src/mailbox/task.rs:72:5
Dec 11 06:37:47.317 INFO [stderr]    |
Dec 11 06:37:47.317 INFO [stderr] 72 |     fn perform(self) {
Dec 11 06:37:47.317 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 11 06:37:47.317 INFO [stderr] 
Dec 11 06:37:47.317 INFO [stderr] warning: method is never used: `pop`
Dec 11 06:37:47.317 INFO [stderr]   --> src/mailbox/task.rs:91:5
Dec 11 06:37:47.317 INFO [stderr]    |
Dec 11 06:37:47.317 INFO [stderr] 91 |     fn pop(&mut self) -> Option<Task> {
Dec 11 06:37:47.317 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:47.317 INFO [stderr] 
Dec 11 06:37:47.317 INFO [stderr] warning: method is never used: `turn`
Dec 11 06:37:47.317 INFO [stderr]    --> src/mailbox/task.rs:103:5
Dec 11 06:37:47.317 INFO [stderr]     |
Dec 11 06:37:47.317 INFO [stderr] 103 |     pub(super) fn turn(&mut self) -> bool {
Dec 11 06:37:47.317 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:47.317 INFO [stderr] 
Dec 11 06:37:47.317 INFO [stderr] warning: variant is never constructed: `MailboxContent`
Dec 11 06:37:47.317 INFO [stderr]    --> src/mailbox.rs:151:5
Dec 11 06:37:47.317 INFO [stderr]     |
Dec 11 06:37:47.317 INFO [stderr] 151 |     MailboxContent(Arc<Mailbox>),
Dec 11 06:37:47.317 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:47.317 INFO [stderr] 
Dec 11 06:37:47.370 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 14s
Dec 11 06:37:47.400 INFO [stderr] su: No module specific data is present
Dec 11 06:37:48.262 INFO running `"docker" "inspect" "80e9c0e3aef97147a9df9eae2d772f625e67875aba4b0b594890b470e742f20d"`
Dec 11 06:37:48.553 INFO running `"docker" "rm" "-f" "80e9c0e3aef97147a9df9eae2d772f625e67875aba4b0b594890b470e742f20d"`
Dec 11 06:37:48.973 INFO [stdout] 80e9c0e3aef97147a9df9eae2d772f625e67875aba4b0b594890b470e742f20d