Nov 27 19:01:11.643 INFO checking team-rust/mailbox against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 27 19:01:11.644 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-0/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 27 19:01:12.102 INFO [stdout] 5414d0f8ef99fc8e47ec414a48854caaee4b8ca3e84eba69a1d8e060834d5a76
Nov 27 19:01:12.106 INFO running `"docker" "start" "-a" "5414d0f8ef99fc8e47ec414a48854caaee4b8ca3e84eba69a1d8e060834d5a76"`
Nov 27 19:01:13.156 INFO [stderr] usermod: no changes
Nov 27 19:01:13.215 INFO [stderr]     Checking mailbox v0.1.0 (/source)
Nov 27 19:01:13.497 INFO [stderr] warning: method is never used: `new`
Nov 27 19:01:13.497 INFO [stderr]  --> src/mailbox.rs:9:5
Nov 27 19:01:13.498 INFO [stderr]   |
Nov 27 19:01:13.498 INFO [stderr] 9 |     pub fn new(sender: String, receiver: String, body: String) -> Message {
Nov 27 19:01:13.498 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:01:13.498 INFO [stderr]   |
Nov 27 19:01:13.499 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 19:01:13.499 INFO [stderr] 
Nov 27 19:01:13.499 INFO [stderr] warning: method is never used: `new`
Nov 27 19:01:13.500 INFO [stderr]   --> src/mailbox.rs:20:5
Nov 27 19:01:13.500 INFO [stderr]    |
Nov 27 19:01:13.501 INFO [stderr] 20 |     pub fn new() -> Mailbox {
Nov 27 19:01:13.501 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:01:13.501 INFO [stderr] 
Nov 27 19:01:13.501 INFO [stderr] warning: method is never used: `store`
Nov 27 19:01:13.502 INFO [stderr]   --> src/mailbox.rs:24:5
Nov 27 19:01:13.504 INFO [stderr]    |
Nov 27 19:01:13.505 INFO [stderr] 24 |     pub fn store(&mut self, m: Message) {
Nov 27 19:01:13.505 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:01:13.507 INFO [stderr] 
Nov 27 19:01:13.507 INFO [stderr] warning: method is never used: `fetch`
Nov 27 19:01:13.507 INFO [stderr]   --> src/mailbox.rs:28:5
Nov 27 19:01:13.508 INFO [stderr]    |
Nov 27 19:01:13.508 INFO [stderr] 28 |     pub fn fetch(&mut self) -> Option<Message> {
Nov 27 19:01:13.508 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:01:13.509 INFO [stderr] 
Nov 27 19:01:13.509 INFO [stderr] warning: struct is never constructed: `SyncedMailbox`
Nov 27 19:01:13.510 INFO [stderr]  --> src/syncedmailbox.rs:4:1
Nov 27 19:01:13.510 INFO [stderr]   |
Nov 27 19:01:13.511 INFO [stderr] 4 | struct SyncedMailbox {
Nov 27 19:01:13.511 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^
Nov 27 19:01:13.511 INFO [stderr] 
Nov 27 19:01:13.512 INFO [stderr] warning: method is never used: `new`
Nov 27 19:01:13.512 INFO [stderr]  --> src/syncedmailbox.rs:9:5
Nov 27 19:01:13.513 INFO [stderr]   |
Nov 27 19:01:13.514 INFO [stderr] 9 |     fn new() -> SyncedMailbox {
Nov 27 19:01:13.514 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:01:13.518 INFO [stderr] 
Nov 27 19:01:13.520 INFO [stderr] warning: method is never used: `store`
Nov 27 19:01:13.520 INFO [stderr]   --> src/syncedmailbox.rs:14:5
Nov 27 19:01:13.522 INFO [stderr]    |
Nov 27 19:01:13.522 INFO [stderr] 14 |     fn store(&self, m: mailbox::Message) -> Result<(), String> {
Nov 27 19:01:13.522 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:01:13.523 INFO [stderr] 
Nov 27 19:01:13.523 INFO [stderr] warning: method is never used: `fetch`
Nov 27 19:01:13.523 INFO [stderr]   --> src/syncedmailbox.rs:21:5
Nov 27 19:01:13.524 INFO [stderr]    |
Nov 27 19:01:13.524 INFO [stderr] 21 |     fn fetch(&self) -> Result<mailbox::Message, String> {
Nov 27 19:01:13.524 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:01:13.525 INFO [stderr] 
Nov 27 19:01:13.574 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
Nov 27 19:01:13.576 INFO [stderr] su: No module specific data is present
Nov 27 19:01:14.074 INFO running `"docker" "inspect" "5414d0f8ef99fc8e47ec414a48854caaee4b8ca3e84eba69a1d8e060834d5a76"`
Nov 27 19:01:14.353 INFO running `"docker" "rm" "-f" "5414d0f8ef99fc8e47ec414a48854caaee4b8ca3e84eba69a1d8e060834d5a76"`
Nov 27 19:01:14.624 INFO [stdout] 5414d0f8ef99fc8e47ec414a48854caaee4b8ca3e84eba69a1d8e060834d5a76