Nov 29 16:51:38.583 INFO checking team-rust/mailbox against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 16:51:38.583 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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"`
Nov 29 16:51:39.032 INFO [stdout] a18ff430649d1e0be3d0faa96d99d8ceec60493003c94ed8166fbc1364790447
Nov 29 16:51:39.034 INFO running `"docker" "start" "-a" "a18ff430649d1e0be3d0faa96d99d8ceec60493003c94ed8166fbc1364790447"`
Nov 29 16:51:40.438 INFO [stderr] usermod: no changes
Nov 29 16:51:40.512 INFO [stderr]     Checking mailbox v0.1.0 (/source)
Nov 29 16:51:40.897 INFO [stderr] warning: method is never used: `new`
Nov 29 16:51:40.897 INFO [stderr]  --> src/mailbox.rs:9:5
Nov 29 16:51:40.897 INFO [stderr]   |
Nov 29 16:51:40.897 INFO [stderr] 9 |     pub fn new(sender: String, receiver: String, body: String) -> Message {
Nov 29 16:51:40.897 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 16:51:40.897 INFO [stderr]   |
Nov 29 16:51:40.897 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 29 16:51:40.897 INFO [stderr] 
Nov 29 16:51:40.897 INFO [stderr] warning: method is never used: `new`
Nov 29 16:51:40.897 INFO [stderr]   --> src/mailbox.rs:20:5
Nov 29 16:51:40.897 INFO [stderr]    |
Nov 29 16:51:40.897 INFO [stderr] 20 |     pub fn new() -> Mailbox {
Nov 29 16:51:40.897 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 16:51:40.897 INFO [stderr] 
Nov 29 16:51:40.897 INFO [stderr] warning: method is never used: `store`
Nov 29 16:51:40.897 INFO [stderr]   --> src/mailbox.rs:24:5
Nov 29 16:51:40.897 INFO [stderr]    |
Nov 29 16:51:40.897 INFO [stderr] 24 |     pub fn store(&mut self, m: Message) {
Nov 29 16:51:40.897 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 16:51:40.898 INFO [stderr] 
Nov 29 16:51:40.898 INFO [stderr] warning: method is never used: `fetch`
Nov 29 16:51:40.898 INFO [stderr]   --> src/mailbox.rs:28:5
Nov 29 16:51:40.898 INFO [stderr]    |
Nov 29 16:51:40.898 INFO [stderr] 28 |     pub fn fetch(&mut self) -> Option<Message> {
Nov 29 16:51:40.898 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 16:51:40.898 INFO [stderr] 
Nov 29 16:51:40.898 INFO [stderr] warning: struct is never constructed: `SyncedMailbox`
Nov 29 16:51:40.898 INFO [stderr]  --> src/syncedmailbox.rs:4:1
Nov 29 16:51:40.898 INFO [stderr]   |
Nov 29 16:51:40.898 INFO [stderr] 4 | struct SyncedMailbox {
Nov 29 16:51:40.898 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Nov 29 16:51:40.898 INFO [stderr] 
Nov 29 16:51:40.898 INFO [stderr] warning: method is never used: `new`
Nov 29 16:51:40.898 INFO [stderr]  --> src/syncedmailbox.rs:9:5
Nov 29 16:51:40.898 INFO [stderr]   |
Nov 29 16:51:40.898 INFO [stderr] 9 |     fn new() -> SyncedMailbox {
Nov 29 16:51:40.898 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 16:51:40.898 INFO [stderr] 
Nov 29 16:51:40.898 INFO [stderr] warning: method is never used: `store`
Nov 29 16:51:40.898 INFO [stderr]   --> src/syncedmailbox.rs:14:5
Nov 29 16:51:40.898 INFO [stderr]    |
Nov 29 16:51:40.898 INFO [stderr] 14 |     fn store(&self, m: mailbox::Message) -> Result<(), String> {
Nov 29 16:51:40.898 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 16:51:40.898 INFO [stderr] 
Nov 29 16:51:40.898 INFO [stderr] warning: method is never used: `fetch`
Nov 29 16:51:40.898 INFO [stderr]   --> src/syncedmailbox.rs:21:5
Nov 29 16:51:40.898 INFO [stderr]    |
Nov 29 16:51:40.898 INFO [stderr] 21 |     fn fetch(&self) -> Result<mailbox::Message, String> {
Nov 29 16:51:40.898 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 16:51:40.898 INFO [stderr] 
Nov 29 16:51:41.003 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
Nov 29 16:51:41.008 INFO [stderr] su: No module specific data is present
Nov 29 16:51:42.422 INFO running `"docker" "inspect" "a18ff430649d1e0be3d0faa96d99d8ceec60493003c94ed8166fbc1364790447"`
Nov 29 16:51:42.842 INFO running `"docker" "rm" "-f" "a18ff430649d1e0be3d0faa96d99d8ceec60493003c94ed8166fbc1364790447"`
Nov 29 16:51:43.188 INFO [stdout] a18ff430649d1e0be3d0faa96d99d8ceec60493003c94ed8166fbc1364790447