Dec 11 06:35:28.526 INFO checking vorner/mix against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 06:35:28.526 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 06:35:29.000 INFO [stdout] 70bcbfc55a88f5cc651c1140b39f938f9ea92d9516882c48ee5bc41f271fefbb
Dec 11 06:35:29.002 INFO running `"docker" "start" "-a" "70bcbfc55a88f5cc651c1140b39f938f9ea92d9516882c48ee5bc41f271fefbb"`
Dec 11 06:35:30.949 INFO [stderr] usermod: no changes
Dec 11 06:35:31.312 INFO [stderr]    Compiling proc-macro2 v0.4.19
Dec 11 06:35:31.312 INFO [stderr]     Checking void v1.0.2
Dec 11 06:35:31.312 INFO [stderr]     Checking stable_deref_trait v1.1.1
Dec 11 06:35:31.312 INFO [stderr]     Checking rand_core v0.2.1
Dec 11 06:35:31.312 INFO [stderr]     Checking libc v0.2.43
Dec 11 06:35:31.312 INFO [stderr]     Checking nodrop v0.1.12
Dec 11 06:35:31.312 INFO [stderr]     Checking memoffset v0.2.1
Dec 11 06:35:31.312 INFO [stderr]     Checking winapi v0.2.8
Dec 11 06:35:31.924 INFO [stderr]     Checking scopeguard v0.3.3
Dec 11 06:35:32.112 INFO [stderr]     Checking cfg-if v0.1.5
Dec 11 06:35:32.272 INFO [stderr]     Checking crossbeam-utils v0.5.0
Dec 11 06:35:32.316 INFO [stderr]     Checking byteorder v1.2.6
Dec 11 06:35:32.668 INFO [stderr]     Checking futures v0.1.24
Dec 11 06:35:32.840 INFO [stderr]     Checking slab v0.4.1
Dec 11 06:35:33.594 INFO [stderr]     Checking lazycell v1.2.0
Dec 11 06:35:34.482 INFO [stderr]     Checking serde v0.8.23
Dec 11 06:35:34.914 INFO [stderr]    Compiling failure_derive v0.1.2
Dec 11 06:35:34.916 INFO [stderr]     Checking ucd-util v0.1.1
Dec 11 06:35:34.935 INFO [stderr]     Checking regex-syntax v0.3.9
Dec 11 06:35:36.210 INFO [stderr]     Checking unicode-width v0.1.5
Dec 11 06:35:36.358 INFO [stderr]     Checking rustc-demangle v0.1.9
Dec 11 06:35:36.790 INFO [stderr]     Checking utf8-ranges v0.1.3
Dec 11 06:35:37.358 INFO [stderr]     Checking ansi_term v0.11.0
Dec 11 06:35:38.323 INFO [stderr]     Checking utf8-ranges v1.0.1
Dec 11 06:35:39.044 INFO [stderr]     Checking lazy_static v0.2.11
Dec 11 06:35:39.156 INFO [stderr]     Checking itoa v0.4.3
Dec 11 06:35:40.028 INFO [stderr]     Checking strsim v0.7.0
Dec 11 06:35:40.113 INFO [stderr]     Checking bitflags v1.0.4
Dec 11 06:35:40.196 INFO [stderr]     Checking linked-hash-map v0.5.1
Dec 11 06:35:40.561 INFO [stderr]     Checking quick-error v1.2.2
Dec 11 06:35:40.774 INFO [stderr]     Checking vec_map v0.8.1
Dec 11 06:35:40.775 INFO [stderr]     Checking termcolor v1.0.4
Dec 11 06:35:40.828 INFO [stderr]     Checking rust-ini v0.12.2
Dec 11 06:35:41.447 INFO [stderr]     Checking same-file v1.0.3
Dec 11 06:35:42.676 INFO [stderr]     Checking memchr v0.1.11
Dec 11 06:35:42.856 INFO [stderr]    Compiling miniz-sys v0.1.10
Dec 11 06:35:43.517 INFO [stderr]    Compiling context v2.1.0
Dec 11 06:35:44.053 INFO [stderr]    Compiling rlua v0.15.2
Dec 11 06:35:44.169 INFO [stderr]     Checking log v0.4.5
Dec 11 06:35:44.251 INFO [stderr]     Checking arrayvec v0.4.7
Dec 11 06:35:46.586 INFO [stderr]     Checking unreachable v1.0.0
Dec 11 06:35:47.266 INFO [stderr]     Checking owning_ref v0.3.3
Dec 11 06:35:48.194 INFO [stderr]     Checking tokio-executor v0.1.5
Dec 11 06:35:48.689 INFO [stderr]     Checking serde_test v0.8.23
Dec 11 06:35:49.244 INFO [stderr]     Checking regex-syntax v0.6.2
Dec 11 06:35:49.450 INFO [stderr]     Checking textwrap v0.10.0
Dec 11 06:35:49.914 INFO [stderr]     Checking iovec v0.1.2
Dec 11 06:35:50.094 INFO [stderr]     Checking rand v0.5.5
Dec 11 06:35:50.655 INFO [stderr]     Checking net2 v0.2.33
Dec 11 06:35:51.377 INFO [stderr]     Checking num_cpus v1.8.0
Dec 11 06:35:52.424 INFO [stderr]     Checking atty v0.2.11
Dec 11 06:35:52.657 INFO [stderr]     Checking yaml-rust v0.4.2
Dec 11 06:35:53.044 INFO [stderr]     Checking humantime v1.1.1
Dec 11 06:35:54.190 INFO [stderr]     Checking walkdir v2.2.5
Dec 11 06:35:54.557 INFO [stderr]     Checking aho-corasick v0.5.3
Dec 11 06:35:56.484 INFO [stderr]     Checking mio v0.6.16
Dec 11 06:35:56.664 INFO [stderr]     Checking smallvec v0.6.5
Dec 11 06:35:58.033 INFO [stderr]     Checking num-traits v0.2.6
Dec 11 06:35:58.525 INFO [stderr]     Checking serde v1.0.79
Dec 11 06:35:59.356 INFO [stderr]     Checking ryu v0.2.6
Dec 11 06:35:59.453 INFO [stderr]     Checking lock_api v0.1.4
Dec 11 06:36:02.542 INFO [stderr]     Checking tokio-current-thread v0.1.3
Dec 11 06:36:03.461 INFO [stderr]     Checking tokio-timer v0.2.7
Dec 11 06:36:03.724 INFO [stderr]     Checking bytes v0.4.10
Dec 11 06:36:06.854 INFO [stderr]     Checking clap v2.32.0
Dec 11 06:36:06.940 INFO [stderr]     Checking linked-hash-map v0.3.0
Dec 11 06:36:10.873 INFO [stderr]     Checking lazy_static v1.1.0
Dec 11 06:36:10.972 INFO [stderr]     Checking memchr v2.1.0
Dec 11 06:36:11.464 INFO [stderr]     Checking kernel32-sys v0.2.2
Dec 11 06:36:12.117 INFO [stderr]     Checking tokio-io v0.1.9
Dec 11 06:36:12.357 INFO [stderr]     Checking backtrace-sys v0.1.24
Dec 11 06:36:13.428 INFO [stderr]     Checking num-traits v0.1.43
Dec 11 06:36:14.292 INFO [stderr]     Checking toml v0.4.7
Dec 11 06:36:14.432 INFO [stderr]     Checking serde_json v1.0.31
Dec 11 06:36:18.161 INFO [stderr]     Checking mio-uds v0.6.7
Dec 11 06:36:21.864 INFO [stderr]     Checking crossbeam-epoch v0.5.2
Dec 11 06:36:22.288 INFO [stderr]    Compiling quote v0.6.8
Dec 11 06:36:23.269 INFO [stderr]     Checking thread-id v2.0.0
Dec 11 06:36:23.848 INFO [stderr]     Checking thread_local v0.3.6
Dec 11 06:36:25.620 INFO [stderr]     Checking backtrace v0.3.9
Dec 11 06:36:25.890 INFO [stderr]     Checking aho-corasick v0.6.8
Dec 11 06:36:26.332 INFO [stderr]     Checking nom v4.0.0
Dec 11 06:36:27.932 INFO [stderr]     Checking flate2 v1.0.2
Dec 11 06:36:28.760 INFO [stderr]     Checking tokio-codec v0.1.1
Dec 11 06:36:30.029 INFO [stderr]     Checking parking_lot_core v0.3.1
Dec 11 06:36:30.906 INFO [stderr]     Checking crossbeam-deque v0.6.1
Dec 11 06:36:32.032 INFO [stderr]     Checking thread_local v0.2.7
Dec 11 06:36:32.036 INFO [stderr]    Compiling syn v0.14.9
Dec 11 06:36:32.268 INFO [stderr]    Compiling syn v0.15.6
Dec 11 06:36:34.365 INFO [stderr]     Checking regex v1.0.5
Dec 11 06:36:35.052 INFO [stderr]     Checking parking_lot v0.6.4
Dec 11 06:36:35.080 INFO [stderr]     Checking tokio-threadpool v0.1.7
Dec 11 06:36:37.756 INFO [stderr]     Checking regex v0.1.80
Dec 11 06:36:46.256 INFO [stderr]     Checking tokio-reactor v0.1.6
Dec 11 06:36:48.763 INFO [stderr]     Checking once_cell v0.1.6
Dec 11 06:36:50.997 INFO [stderr]     Checking tokio-fs v0.1.3
Dec 11 06:36:51.538 INFO [stderr]     Checking env_logger v0.5.13
Dec 11 06:36:54.494 INFO [stderr]     Checking serde-hjson v0.8.1
Dec 11 06:36:55.271 INFO [stderr]     Checking tokio-tcp v0.1.2
Dec 11 06:36:55.290 INFO [stderr]     Checking tokio-uds v0.2.2
Dec 11 06:36:56.318 INFO [stderr]     Checking tokio-udp v0.1.2
Dec 11 06:37:01.025 INFO [stderr]     Checking tokio v0.1.11
Dec 11 06:37:16.340 INFO [stderr]     Checking config v0.9.1
Dec 11 06:37:16.592 INFO [stderr]     Checking corona v0.4.0
Dec 11 06:37:17.140 INFO [stderr]    Compiling serde_derive v1.0.79
Dec 11 06:37:20.819 INFO [stderr]    Compiling synstructure v0.9.0
Dec 11 06:37:20.819 INFO [stderr]    Compiling structopt-derive v0.2.10
Dec 11 06:37:31.309 INFO [stderr]     Checking structopt v0.2.10
Dec 11 06:37:33.959 INFO [stderr]     Checking failure v0.1.2
Dec 11 06:37:49.728 INFO [stderr]     Checking mix v0.1.0 (/source)
Dec 11 06:37:51.188 INFO [stderr] warning: method is never used: `new`
Dec 11 06:37:51.188 INFO [stderr]   --> src/mailbox/task.rs:12:5
Dec 11 06:37:51.188 INFO [stderr]    |
Dec 11 06:37:51.188 INFO [stderr] 12 |     pub fn new(inner: Arc<T>) -> Self {
Dec 11 06:37:51.188 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:51.188 INFO [stderr]    |
Dec 11 06:37:51.188 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 06:37:51.188 INFO [stderr] 
Dec 11 06:37:51.188 INFO [stderr] warning: method is never used: `into_inner`
Dec 11 06:37:51.188 INFO [stderr]   --> src/mailbox/task.rs:15:5
Dec 11 06:37:51.188 INFO [stderr]    |
Dec 11 06:37:51.188 INFO [stderr] 15 |     pub fn into_inner(self) -> Arc<T> {
Dec 11 06:37:51.188 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:51.188 INFO [stderr] 
Dec 11 06:37:51.188 INFO [stderr] warning: method is never used: `perform`
Dec 11 06:37:51.188 INFO [stderr]   --> src/mailbox/task.rs:72:5
Dec 11 06:37:51.188 INFO [stderr]    |
Dec 11 06:37:51.189 INFO [stderr] 72 |     fn perform(self) {
Dec 11 06:37:51.189 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 11 06:37:51.189 INFO [stderr] 
Dec 11 06:37:51.189 INFO [stderr] warning: method is never used: `pop`
Dec 11 06:37:51.189 INFO [stderr]   --> src/mailbox/task.rs:91:5
Dec 11 06:37:51.189 INFO [stderr]    |
Dec 11 06:37:51.189 INFO [stderr] 91 |     fn pop(&mut self) -> Option<Task> {
Dec 11 06:37:51.189 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:51.189 INFO [stderr] 
Dec 11 06:37:51.189 INFO [stderr] warning: method is never used: `turn`
Dec 11 06:37:51.189 INFO [stderr]    --> src/mailbox/task.rs:103:5
Dec 11 06:37:51.189 INFO [stderr]     |
Dec 11 06:37:51.189 INFO [stderr] 103 |     pub(super) fn turn(&mut self) -> bool {
Dec 11 06:37:51.189 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:51.189 INFO [stderr] 
Dec 11 06:37:51.189 INFO [stderr] warning: variant is never constructed: `MailboxContent`
Dec 11 06:37:51.189 INFO [stderr]    --> src/mailbox.rs:151:5
Dec 11 06:37:51.189 INFO [stderr]     |
Dec 11 06:37:51.189 INFO [stderr] 151 |     MailboxContent(Arc<Mailbox>),
Dec 11 06:37:51.189 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:51.189 INFO [stderr] 
Dec 11 06:37:51.286 INFO [stderr] warning: method is never used: `new`
Dec 11 06:37:51.286 INFO [stderr]   --> src/mailbox/task.rs:12:5
Dec 11 06:37:51.286 INFO [stderr]    |
Dec 11 06:37:51.286 INFO [stderr] 12 |     pub fn new(inner: Arc<T>) -> Self {
Dec 11 06:37:51.286 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:51.286 INFO [stderr]    |
Dec 11 06:37:51.286 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 06:37:51.286 INFO [stderr] 
Dec 11 06:37:51.286 INFO [stderr] warning: method is never used: `into_inner`
Dec 11 06:37:51.286 INFO [stderr]   --> src/mailbox/task.rs:15:5
Dec 11 06:37:51.286 INFO [stderr]    |
Dec 11 06:37:51.286 INFO [stderr] 15 |     pub fn into_inner(self) -> Arc<T> {
Dec 11 06:37:51.286 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:51.286 INFO [stderr] 
Dec 11 06:37:51.286 INFO [stderr] warning: method is never used: `perform`
Dec 11 06:37:51.286 INFO [stderr]   --> src/mailbox/task.rs:72:5
Dec 11 06:37:51.286 INFO [stderr]    |
Dec 11 06:37:51.286 INFO [stderr] 72 |     fn perform(self) {
Dec 11 06:37:51.286 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 11 06:37:51.286 INFO [stderr] 
Dec 11 06:37:51.287 INFO [stderr] warning: method is never used: `pop`
Dec 11 06:37:51.287 INFO [stderr]   --> src/mailbox/task.rs:91:5
Dec 11 06:37:51.287 INFO [stderr]    |
Dec 11 06:37:51.287 INFO [stderr] 91 |     fn pop(&mut self) -> Option<Task> {
Dec 11 06:37:51.287 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:51.287 INFO [stderr] 
Dec 11 06:37:51.287 INFO [stderr] warning: method is never used: `turn`
Dec 11 06:37:51.287 INFO [stderr]    --> src/mailbox/task.rs:103:5
Dec 11 06:37:51.287 INFO [stderr]     |
Dec 11 06:37:51.287 INFO [stderr] 103 |     pub(super) fn turn(&mut self) -> bool {
Dec 11 06:37:51.287 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:51.287 INFO [stderr] 
Dec 11 06:37:51.294 INFO [stderr] warning: variant is never constructed: `MailboxContent`
Dec 11 06:37:51.294 INFO [stderr]    --> src/mailbox.rs:151:5
Dec 11 06:37:51.294 INFO [stderr]     |
Dec 11 06:37:51.294 INFO [stderr] 151 |     MailboxContent(Arc<Mailbox>),
Dec 11 06:37:51.294 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 06:37:51.294 INFO [stderr] 
Dec 11 06:37:51.352 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 20s
Dec 11 06:37:51.393 INFO [stderr] su: No module specific data is present
Dec 11 06:37:52.560 INFO running `"docker" "inspect" "70bcbfc55a88f5cc651c1140b39f938f9ea92d9516882c48ee5bc41f271fefbb"`
Dec 11 06:37:52.904 INFO running `"docker" "rm" "-f" "70bcbfc55a88f5cc651c1140b39f938f9ea92d9516882c48ee5bc41f271fefbb"`
Dec 11 06:37:53.308 INFO [stdout] 70bcbfc55a88f5cc651c1140b39f938f9ea92d9516882c48ee5bc41f271fefbb