Oct 31 19:55:52.555 INFO checking team-rust/mailbox against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 19:55:52.555 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-0/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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"`
Oct 31 19:55:53.258 INFO blam! 75dbcb942e22151e526a4890278cba13710d5192d5575b524d70d37d075b3fba
Oct 31 19:55:53.261 INFO running `"docker" "start" "-a" "75dbcb942e22151e526a4890278cba13710d5192d5575b524d70d37d075b3fba"`
Oct 31 19:55:54.696 INFO kablam! usermod: no changes
Oct 31 19:55:54.748 INFO kablam!     Checking mailbox v0.1.0 (/source)
Oct 31 19:55:55.269 INFO kablam! warning: method is never used: `new`
Oct 31 19:55:55.270 INFO kablam!  --> src/mailbox.rs:9:5
Oct 31 19:55:55.270 INFO kablam!   |
Oct 31 19:55:55.270 INFO kablam! 9 |     pub fn new(sender: String, receiver: String, body: String) -> Message {
Oct 31 19:55:55.271 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 19:55:55.271 INFO kablam!   |
Oct 31 19:55:55.271 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 31 19:55:55.271 INFO kablam! 
Oct 31 19:55:55.272 INFO kablam! warning: method is never used: `new`
Oct 31 19:55:55.272 INFO kablam!   --> src/mailbox.rs:20:5
Oct 31 19:55:55.272 INFO kablam!    |
Oct 31 19:55:55.272 INFO kablam! 20 |     pub fn new() -> Mailbox {
Oct 31 19:55:55.272 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 19:55:55.272 INFO kablam! 
Oct 31 19:55:55.272 INFO kablam! warning: method is never used: `store`
Oct 31 19:55:55.272 INFO kablam!   --> src/mailbox.rs:24:5
Oct 31 19:55:55.272 INFO kablam!    |
Oct 31 19:55:55.272 INFO kablam! 24 |     pub fn store(&mut self, m: Message) {
Oct 31 19:55:55.272 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 19:55:55.272 INFO kablam! 
Oct 31 19:55:55.272 INFO kablam! warning: method is never used: `fetch`
Oct 31 19:55:55.272 INFO kablam!   --> src/mailbox.rs:28:5
Oct 31 19:55:55.272 INFO kablam!    |
Oct 31 19:55:55.272 INFO kablam! 28 |     pub fn fetch(&mut self) -> Option<Message> {
Oct 31 19:55:55.272 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 19:55:55.272 INFO kablam! 
Oct 31 19:55:55.272 INFO kablam! warning: struct is never constructed: `SyncedMailbox`
Oct 31 19:55:55.272 INFO kablam!  --> src/syncedmailbox.rs:4:1
Oct 31 19:55:55.273 INFO kablam!   |
Oct 31 19:55:55.273 INFO kablam! 4 | struct SyncedMailbox {
Oct 31 19:55:55.273 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^
Oct 31 19:55:55.273 INFO kablam! 
Oct 31 19:55:55.273 INFO kablam! warning: method is never used: `new`
Oct 31 19:55:55.273 INFO kablam!  --> src/syncedmailbox.rs:9:5
Oct 31 19:55:55.273 INFO kablam!   |
Oct 31 19:55:55.273 INFO kablam! 9 |     fn new() -> SyncedMailbox {
Oct 31 19:55:55.273 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 19:55:55.273 INFO kablam! 
Oct 31 19:55:55.273 INFO kablam! warning: method is never used: `store`
Oct 31 19:55:55.273 INFO kablam!   --> src/syncedmailbox.rs:14:5
Oct 31 19:55:55.273 INFO kablam!    |
Oct 31 19:55:55.273 INFO kablam! 14 |     fn store(&self, m: mailbox::Message) -> Result<(), String> {
Oct 31 19:55:55.273 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 19:55:55.273 INFO kablam! 
Oct 31 19:55:55.273 INFO kablam! warning: method is never used: `fetch`
Oct 31 19:55:55.273 INFO kablam!   --> src/syncedmailbox.rs:21:5
Oct 31 19:55:55.273 INFO kablam!    |
Oct 31 19:55:55.273 INFO kablam! 21 |     fn fetch(&self) -> Result<mailbox::Message, String> {
Oct 31 19:55:55.273 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 19:55:55.273 INFO kablam! 
Oct 31 19:55:55.348 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Oct 31 19:55:55.371 INFO kablam! su: No module specific data is present
Oct 31 19:55:55.960 INFO running `"docker" "rm" "-f" "75dbcb942e22151e526a4890278cba13710d5192d5575b524d70d37d075b3fba"`
Oct 31 19:55:56.200 INFO blam! 75dbcb942e22151e526a4890278cba13710d5192d5575b524d70d37d075b3fba