Nov 02 06:45:47.197 INFO checking shanemikel/rust-hello against master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862 for pr-55517
Nov 02 06:45:47.197 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55517/worker-6/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55517/master#f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862:/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 +f6e9a6e41cd9b1fb687e296b5a6d4c6ad399f862-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 02 06:45:47.580 INFO blam! 254d16cb1d61f6188f6924528a3fea43eb82d4fe6b57c9187f92248eb9d6296e
Nov 02 06:45:47.582 INFO running `"docker" "start" "-a" "254d16cb1d61f6188f6924528a3fea43eb82d4fe6b57c9187f92248eb9d6296e"`
Nov 02 06:45:50.120 INFO kablam! usermod: no changes
Nov 02 06:45:50.172 INFO kablam!     Checking rust-hello v0.1.0 (/source)
Nov 02 06:45:50.516 INFO kablam! warning: unused import: `std::cell::RefCell`
Nov 02 06:45:50.516 INFO kablam!  --> src/main.rs:8:9
Nov 02 06:45:50.517 INFO kablam!   |
Nov 02 06:45:50.517 INFO kablam! 8 |     use std::cell::RefCell;
Nov 02 06:45:50.517 INFO kablam!   |         ^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.517 INFO kablam!   |
Nov 02 06:45:50.517 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 02 06:45:50.517 INFO kablam! 
Nov 02 06:45:50.517 INFO kablam! warning: unused import: `Mutex`
Nov 02 06:45:50.517 INFO kablam!  --> src/main.rs:9:26
Nov 02 06:45:50.517 INFO kablam!   |
Nov 02 06:45:50.517 INFO kablam! 9 |     use std::sync::{Arc, Mutex, RwLock};
Nov 02 06:45:50.517 INFO kablam!   |                          ^^^^^
Nov 02 06:45:50.517 INFO kablam! 
Nov 02 06:45:50.572 INFO kablam! warning: unused import: `std::cell::RefCell`
Nov 02 06:45:50.572 INFO kablam!  --> src/main.rs:8:9
Nov 02 06:45:50.573 INFO kablam!   |
Nov 02 06:45:50.573 INFO kablam! 8 |     use std::cell::RefCell;
Nov 02 06:45:50.573 INFO kablam!   |         ^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.573 INFO kablam!   |
Nov 02 06:45:50.573 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 02 06:45:50.574 INFO kablam! 
Nov 02 06:45:50.574 INFO kablam! warning: unused import: `Mutex`
Nov 02 06:45:50.574 INFO kablam!  --> src/main.rs:9:26
Nov 02 06:45:50.574 INFO kablam!   |
Nov 02 06:45:50.574 INFO kablam! 9 |     use std::sync::{Arc, Mutex, RwLock};
Nov 02 06:45:50.574 INFO kablam!   |                          ^^^^^
Nov 02 06:45:50.574 INFO kablam! 
Nov 02 06:45:50.729 INFO kablam! warning: unused variable: `data`
Nov 02 06:45:50.729 INFO kablam!   --> src/main.rs:25:17
Nov 02 06:45:50.729 INFO kablam!    |
Nov 02 06:45:50.729 INFO kablam! 25 |             let data = data.read().unwrap();
Nov 02 06:45:50.729 INFO kablam!    |                 ^^^^ help: consider using `_data` instead
Nov 02 06:45:50.729 INFO kablam!    |
Nov 02 06:45:50.729 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 02 06:45:50.729 INFO kablam! 
Nov 02 06:45:50.760 INFO kablam! warning: enum is never used: `List`
Nov 02 06:45:50.760 INFO kablam!  --> src/list.rs:3:1
Nov 02 06:45:50.761 INFO kablam!   |
Nov 02 06:45:50.761 INFO kablam! 3 | pub enum List<T> {
Nov 02 06:45:50.761 INFO kablam!   | ^^^^^^^^^^^^^^^^
Nov 02 06:45:50.761 INFO kablam!   |
Nov 02 06:45:50.761 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 02 06:45:50.761 INFO kablam! 
Nov 02 06:45:50.761 INFO kablam! warning: method is never used: `new`
Nov 02 06:45:50.761 INFO kablam!  --> src/list.rs:9:5
Nov 02 06:45:50.761 INFO kablam!   |
Nov 02 06:45:50.761 INFO kablam! 9 |     pub fn new() -> List<T> { List::Nil }
Nov 02 06:45:50.761 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.761 INFO kablam! 
Nov 02 06:45:50.761 INFO kablam! warning: method is never used: `cons`
Nov 02 06:45:50.761 INFO kablam!   --> src/list.rs:11:5
Nov 02 06:45:50.761 INFO kablam!    |
Nov 02 06:45:50.761 INFO kablam! 11 |     pub fn cons(self, x: T) -> List<T> { List::Cons(x, Box::new(self)) }
Nov 02 06:45:50.761 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.761 INFO kablam! 
Nov 02 06:45:50.761 INFO kablam! warning: method is never used: `head`
Nov 02 06:45:50.761 INFO kablam!   --> src/list.rs:13:5
Nov 02 06:45:50.761 INFO kablam!    |
Nov 02 06:45:50.761 INFO kablam! 13 |     pub fn head(self) -> Option<T> {
Nov 02 06:45:50.761 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.761 INFO kablam! 
Nov 02 06:45:50.761 INFO kablam! warning: method is never used: `tail`
Nov 02 06:45:50.761 INFO kablam!   --> src/list.rs:20:5
Nov 02 06:45:50.761 INFO kablam!    |
Nov 02 06:45:50.761 INFO kablam! 20 |     pub fn tail(&self) -> Option<&List<T>> {
Nov 02 06:45:50.761 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.761 INFO kablam! 
Nov 02 06:45:50.761 INFO kablam! warning: method is never used: `head_ref`
Nov 02 06:45:50.761 INFO kablam!   --> src/list.rs:29:5
Nov 02 06:45:50.761 INFO kablam!    |
Nov 02 06:45:50.761 INFO kablam! 29 |     pub fn head_ref(&self) -> Option<T> {
Nov 02 06:45:50.761 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.761 INFO kablam! 
Nov 02 06:45:50.761 INFO kablam! warning: constant item is never used: `N`
Nov 02 06:45:50.761 INFO kablam!   --> src/main.rs:13:5
Nov 02 06:45:50.761 INFO kablam!    |
Nov 02 06:45:50.761 INFO kablam! 13 |     const N: usize = 10;
Nov 02 06:45:50.761 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.762 INFO kablam! 
Nov 02 06:45:50.762 INFO kablam! warning: function is never used: `test_list`
Nov 02 06:45:50.762 INFO kablam!   --> src/main.rs:39:1
Nov 02 06:45:50.762 INFO kablam!    |
Nov 02 06:45:50.762 INFO kablam! 39 | fn test_list() {
Nov 02 06:45:50.762 INFO kablam!    | ^^^^^^^^^^^^^^
Nov 02 06:45:50.762 INFO kablam! 
Nov 02 06:45:50.800 INFO kablam! warning: unused variable: `data`
Nov 02 06:45:50.800 INFO kablam!   --> src/main.rs:25:17
Nov 02 06:45:50.800 INFO kablam!    |
Nov 02 06:45:50.800 INFO kablam! 25 |             let data = data.read().unwrap();
Nov 02 06:45:50.800 INFO kablam!    |                 ^^^^ help: consider using `_data` instead
Nov 02 06:45:50.800 INFO kablam!    |
Nov 02 06:45:50.800 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 02 06:45:50.800 INFO kablam! 
Nov 02 06:45:50.844 INFO kablam! warning: enum is never used: `List`
Nov 02 06:45:50.844 INFO kablam!  --> src/list.rs:3:1
Nov 02 06:45:50.844 INFO kablam!   |
Nov 02 06:45:50.844 INFO kablam! 3 | pub enum List<T> {
Nov 02 06:45:50.844 INFO kablam!   | ^^^^^^^^^^^^^^^^
Nov 02 06:45:50.844 INFO kablam!   |
Nov 02 06:45:50.844 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 02 06:45:50.844 INFO kablam! 
Nov 02 06:45:50.844 INFO kablam! warning: method is never used: `new`
Nov 02 06:45:50.844 INFO kablam!  --> src/list.rs:9:5
Nov 02 06:45:50.844 INFO kablam!   |
Nov 02 06:45:50.844 INFO kablam! 9 |     pub fn new() -> List<T> { List::Nil }
Nov 02 06:45:50.844 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.844 INFO kablam! 
Nov 02 06:45:50.844 INFO kablam! warning: method is never used: `cons`
Nov 02 06:45:50.844 INFO kablam!   --> src/list.rs:11:5
Nov 02 06:45:50.844 INFO kablam!    |
Nov 02 06:45:50.844 INFO kablam! 11 |     pub fn cons(self, x: T) -> List<T> { List::Cons(x, Box::new(self)) }
Nov 02 06:45:50.844 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.844 INFO kablam! 
Nov 02 06:45:50.844 INFO kablam! warning: method is never used: `head`
Nov 02 06:45:50.844 INFO kablam!   --> src/list.rs:13:5
Nov 02 06:45:50.844 INFO kablam!    |
Nov 02 06:45:50.844 INFO kablam! 13 |     pub fn head(self) -> Option<T> {
Nov 02 06:45:50.844 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.844 INFO kablam! 
Nov 02 06:45:50.844 INFO kablam! warning: method is never used: `tail`
Nov 02 06:45:50.844 INFO kablam!   --> src/list.rs:20:5
Nov 02 06:45:50.844 INFO kablam!    |
Nov 02 06:45:50.844 INFO kablam! 20 |     pub fn tail(&self) -> Option<&List<T>> {
Nov 02 06:45:50.844 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.844 INFO kablam! 
Nov 02 06:45:50.844 INFO kablam! warning: method is never used: `head_ref`
Nov 02 06:45:50.844 INFO kablam!   --> src/list.rs:29:5
Nov 02 06:45:50.844 INFO kablam!    |
Nov 02 06:45:50.844 INFO kablam! 29 |     pub fn head_ref(&self) -> Option<T> {
Nov 02 06:45:50.844 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.844 INFO kablam! 
Nov 02 06:45:50.844 INFO kablam! warning: constant item is never used: `N`
Nov 02 06:45:50.844 INFO kablam!   --> src/main.rs:13:5
Nov 02 06:45:50.844 INFO kablam!    |
Nov 02 06:45:50.844 INFO kablam! 13 |     const N: usize = 10;
Nov 02 06:45:50.844 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Nov 02 06:45:50.844 INFO kablam! 
Nov 02 06:45:50.844 INFO kablam! warning: function is never used: `test_list`
Nov 02 06:45:50.844 INFO kablam!   --> src/main.rs:39:1
Nov 02 06:45:50.844 INFO kablam!    |
Nov 02 06:45:50.844 INFO kablam! 39 | fn test_list() {
Nov 02 06:45:50.844 INFO kablam!    | ^^^^^^^^^^^^^^
Nov 02 06:45:50.844 INFO kablam! 
Nov 02 06:45:50.892 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Nov 02 06:45:50.894 INFO kablam! su: No module specific data is present
Nov 02 06:45:52.518 INFO running `"docker" "rm" "-f" "254d16cb1d61f6188f6924528a3fea43eb82d4fe6b57c9187f92248eb9d6296e"`
Nov 02 06:45:52.773 INFO blam! 254d16cb1d61f6188f6924528a3fea43eb82d4fe6b57c9187f92248eb9d6296e