Oct 12 12:29:47.817 INFO checking team-rust/mailbox against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 12:29:47.818 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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 12 12:29:48.216 INFO blam! 16c067a4bac237b5acaa5b1370848b0b0a8f7eb84f174716e669fd27bdf6bd3e
Oct 12 12:29:48.224 INFO running `"docker" "start" "-a" "16c067a4bac237b5acaa5b1370848b0b0a8f7eb84f174716e669fd27bdf6bd3e"`
Oct 12 12:29:49.460 INFO kablam! usermod: no changes
Oct 12 12:29:49.528 INFO kablam!     Checking mailbox v0.1.0 (/source)
Oct 12 12:29:49.984 INFO kablam! warning: method is never used: `new`
Oct 12 12:29:49.984 INFO kablam!  --> src/mailbox.rs:9:5
Oct 12 12:29:49.984 INFO kablam!   |
Oct 12 12:29:49.984 INFO kablam! 9 |     pub fn new(sender: String, receiver: String, body: String) -> Message {
Oct 12 12:29:49.984 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:29:49.984 INFO kablam!   |
Oct 12 12:29:49.984 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 12 12:29:49.984 INFO kablam! 
Oct 12 12:29:49.984 INFO kablam! warning: method is never used: `new`
Oct 12 12:29:49.984 INFO kablam!   --> src/mailbox.rs:20:5
Oct 12 12:29:49.984 INFO kablam!    |
Oct 12 12:29:49.984 INFO kablam! 20 |     pub fn new() -> Mailbox {
Oct 12 12:29:49.984 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:29:49.984 INFO kablam! 
Oct 12 12:29:49.984 INFO kablam! warning: method is never used: `store`
Oct 12 12:29:49.984 INFO kablam!   --> src/mailbox.rs:24:5
Oct 12 12:29:49.984 INFO kablam!    |
Oct 12 12:29:49.984 INFO kablam! 24 |     pub fn store(&mut self, m: Message) {
Oct 12 12:29:49.984 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:29:49.984 INFO kablam! 
Oct 12 12:29:49.984 INFO kablam! warning: method is never used: `fetch`
Oct 12 12:29:49.984 INFO kablam!   --> src/mailbox.rs:28:5
Oct 12 12:29:49.984 INFO kablam!    |
Oct 12 12:29:49.984 INFO kablam! 28 |     pub fn fetch(&mut self) -> Option<Message> {
Oct 12 12:29:49.984 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:29:49.984 INFO kablam! 
Oct 12 12:29:49.984 INFO kablam! warning: struct is never constructed: `SyncedMailbox`
Oct 12 12:29:49.984 INFO kablam!  --> src/syncedmailbox.rs:4:1
Oct 12 12:29:49.984 INFO kablam!   |
Oct 12 12:29:49.984 INFO kablam! 4 | struct SyncedMailbox {
Oct 12 12:29:49.984 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^
Oct 12 12:29:49.984 INFO kablam! 
Oct 12 12:29:49.984 INFO kablam! warning: method is never used: `new`
Oct 12 12:29:49.984 INFO kablam!  --> src/syncedmailbox.rs:9:5
Oct 12 12:29:49.984 INFO kablam!   |
Oct 12 12:29:49.984 INFO kablam! 9 |     fn new() -> SyncedMailbox {
Oct 12 12:29:49.984 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:29:49.984 INFO kablam! 
Oct 12 12:29:49.984 INFO kablam! warning: method is never used: `store`
Oct 12 12:29:49.984 INFO kablam!   --> src/syncedmailbox.rs:14:5
Oct 12 12:29:49.985 INFO kablam!    |
Oct 12 12:29:49.985 INFO kablam! 14 |     fn store(&self, m: mailbox::Message) -> Result<(), String> {
Oct 12 12:29:49.985 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:29:49.985 INFO kablam! 
Oct 12 12:29:49.985 INFO kablam! warning: method is never used: `fetch`
Oct 12 12:29:49.985 INFO kablam!   --> src/syncedmailbox.rs:21:5
Oct 12 12:29:49.985 INFO kablam!    |
Oct 12 12:29:49.985 INFO kablam! 21 |     fn fetch(&self) -> Result<mailbox::Message, String> {
Oct 12 12:29:49.985 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:29:49.985 INFO kablam! 
Oct 12 12:29:50.140 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
Oct 12 12:29:50.148 INFO kablam! su: No module specific data is present
Oct 12 12:29:50.828 INFO running `"docker" "rm" "-f" "16c067a4bac237b5acaa5b1370848b0b0a8f7eb84f174716e669fd27bdf6bd3e"`
Oct 12 12:29:51.104 INFO blam! 16c067a4bac237b5acaa5b1370848b0b0a8f7eb84f174716e669fd27bdf6bd3e