Dec 01 02:41:16.559 INFO testing shanemikel/rust-hello against 1.30.1 for beta-1.31-5
Dec 01 02:41:16.559 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 02:41:16.907 INFO [stdout] c8c7a82271fa670f8767ac44f2927a1c83b6d7e04258a5410bb434758a9fba59
Dec 01 02:41:16.911 INFO running `"docker" "start" "-a" "c8c7a82271fa670f8767ac44f2927a1c83b6d7e04258a5410bb434758a9fba59"`
Dec 01 02:41:18.091 INFO [stderr] usermod: no changes
Dec 01 02:41:18.163 INFO [stderr]    Compiling rust-hello v0.1.0 (/source)
Dec 01 02:41:18.427 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 01 02:41:18.427 INFO [stderr]  --> src/main.rs:8:9
Dec 01 02:41:18.427 INFO [stderr]   |
Dec 01 02:41:18.427 INFO [stderr] 8 |     use std::cell::RefCell;
Dec 01 02:41:18.427 INFO [stderr]   |         ^^^^^^^^^^^^^^^^^^
Dec 01 02:41:18.427 INFO [stderr]   |
Dec 01 02:41:18.427 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 01 02:41:18.427 INFO [stderr] 
Dec 01 02:41:18.427 INFO [stderr] warning: unused import: `Mutex`
Dec 01 02:41:18.427 INFO [stderr]  --> src/main.rs:9:26
Dec 01 02:41:18.427 INFO [stderr]   |
Dec 01 02:41:18.427 INFO [stderr] 9 |     use std::sync::{Arc, Mutex, RwLock};
Dec 01 02:41:18.427 INFO [stderr]   |                          ^^^^^
Dec 01 02:41:18.427 INFO [stderr] 
Dec 01 02:41:18.579 INFO [stderr] warning: unused variable: `data`
Dec 01 02:41:18.579 INFO [stderr]   --> src/main.rs:25:17
Dec 01 02:41:18.579 INFO [stderr]    |
Dec 01 02:41:18.579 INFO [stderr] 25 |             let data = data.read().unwrap();
Dec 01 02:41:18.579 INFO [stderr]    |                 ^^^^ help: consider using `_data` instead
Dec 01 02:41:18.579 INFO [stderr]    |
Dec 01 02:41:18.579 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 01 02:41:18.579 INFO [stderr] 
Dec 01 02:41:18.595 INFO [stderr] warning: enum is never used: `List`
Dec 01 02:41:18.595 INFO [stderr]  --> src/list.rs:3:1
Dec 01 02:41:18.595 INFO [stderr]   |
Dec 01 02:41:18.595 INFO [stderr] 3 | pub enum List<T> {
Dec 01 02:41:18.595 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 01 02:41:18.595 INFO [stderr]   |
Dec 01 02:41:18.595 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 01 02:41:18.595 INFO [stderr] 
Dec 01 02:41:18.595 INFO [stderr] warning: method is never used: `new`
Dec 01 02:41:18.595 INFO [stderr]  --> src/list.rs:9:5
Dec 01 02:41:18.595 INFO [stderr]   |
Dec 01 02:41:18.595 INFO [stderr] 9 |     pub fn new() -> List<T> { List::Nil }
Dec 01 02:41:18.595 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:18.595 INFO [stderr] 
Dec 01 02:41:18.595 INFO [stderr] warning: method is never used: `cons`
Dec 01 02:41:18.595 INFO [stderr]   --> src/list.rs:11:5
Dec 01 02:41:18.595 INFO [stderr]    |
Dec 01 02:41:18.595 INFO [stderr] 11 |     pub fn cons(self, x: T) -> List<T> { List::Cons(x, Box::new(self)) }
Dec 01 02:41:18.595 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:18.595 INFO [stderr] 
Dec 01 02:41:18.595 INFO [stderr] warning: method is never used: `head`
Dec 01 02:41:18.595 INFO [stderr]   --> src/list.rs:13:5
Dec 01 02:41:18.595 INFO [stderr]    |
Dec 01 02:41:18.595 INFO [stderr] 13 |     pub fn head(self) -> Option<T> {
Dec 01 02:41:18.595 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:18.595 INFO [stderr] 
Dec 01 02:41:18.595 INFO [stderr] warning: method is never used: `tail`
Dec 01 02:41:18.595 INFO [stderr]   --> src/list.rs:20:5
Dec 01 02:41:18.595 INFO [stderr]    |
Dec 01 02:41:18.595 INFO [stderr] 20 |     pub fn tail(&self) -> Option<&List<T>> {
Dec 01 02:41:18.595 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:18.595 INFO [stderr] 
Dec 01 02:41:18.595 INFO [stderr] warning: method is never used: `head_ref`
Dec 01 02:41:18.595 INFO [stderr]   --> src/list.rs:29:5
Dec 01 02:41:18.595 INFO [stderr]    |
Dec 01 02:41:18.595 INFO [stderr] 29 |     pub fn head_ref(&self) -> Option<T> {
Dec 01 02:41:18.595 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:18.595 INFO [stderr] 
Dec 01 02:41:18.595 INFO [stderr] warning: constant item is never used: `N`
Dec 01 02:41:18.595 INFO [stderr]   --> src/main.rs:13:5
Dec 01 02:41:18.595 INFO [stderr]    |
Dec 01 02:41:18.595 INFO [stderr] 13 |     const N: usize = 10;
Dec 01 02:41:18.595 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:18.596 INFO [stderr] 
Dec 01 02:41:18.596 INFO [stderr] warning: function is never used: `test_list`
Dec 01 02:41:18.596 INFO [stderr]   --> src/main.rs:39:1
Dec 01 02:41:18.596 INFO [stderr]    |
Dec 01 02:41:18.596 INFO [stderr] 39 | fn test_list() {
Dec 01 02:41:18.596 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 01 02:41:18.596 INFO [stderr] 
Dec 01 02:41:19.689 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
Dec 01 02:41:19.695 INFO [stderr] su: No module specific data is present
Dec 01 02:41:20.633 INFO running `"docker" "inspect" "c8c7a82271fa670f8767ac44f2927a1c83b6d7e04258a5410bb434758a9fba59"`
Dec 01 02:41:20.962 INFO running `"docker" "rm" "-f" "c8c7a82271fa670f8767ac44f2927a1c83b6d7e04258a5410bb434758a9fba59"`
Dec 01 02:41:21.226 INFO [stdout] c8c7a82271fa670f8767ac44f2927a1c83b6d7e04258a5410bb434758a9fba59
Dec 01 02:41:21.231 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 02:41:21.841 INFO [stdout] cc201336feeb756865a7f5ccfe5e254d63e9373033afe13cbe80e3ac2b5c6df4
Dec 01 02:41:21.843 INFO running `"docker" "start" "-a" "cc201336feeb756865a7f5ccfe5e254d63e9373033afe13cbe80e3ac2b5c6df4"`
Dec 01 02:41:23.143 INFO [stderr] usermod: no changes
Dec 01 02:41:23.196 INFO [stderr]    Compiling rust-hello v0.1.0 (/source)
Dec 01 02:41:23.555 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 01 02:41:23.555 INFO [stderr]  --> src/main.rs:8:9
Dec 01 02:41:23.555 INFO [stderr]   |
Dec 01 02:41:23.555 INFO [stderr] 8 |     use std::cell::RefCell;
Dec 01 02:41:23.555 INFO [stderr]   |         ^^^^^^^^^^^^^^^^^^
Dec 01 02:41:23.555 INFO [stderr]   |
Dec 01 02:41:23.555 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 01 02:41:23.555 INFO [stderr] 
Dec 01 02:41:23.555 INFO [stderr] warning: unused import: `Mutex`
Dec 01 02:41:23.555 INFO [stderr]  --> src/main.rs:9:26
Dec 01 02:41:23.555 INFO [stderr]   |
Dec 01 02:41:23.555 INFO [stderr] 9 |     use std::sync::{Arc, Mutex, RwLock};
Dec 01 02:41:23.555 INFO [stderr]   |                          ^^^^^
Dec 01 02:41:23.555 INFO [stderr] 
Dec 01 02:41:23.659 INFO [stderr] warning: unused variable: `data`
Dec 01 02:41:23.660 INFO [stderr]   --> src/main.rs:25:17
Dec 01 02:41:23.660 INFO [stderr]    |
Dec 01 02:41:23.660 INFO [stderr] 25 |             let data = data.read().unwrap();
Dec 01 02:41:23.660 INFO [stderr]    |                 ^^^^ help: consider using `_data` instead
Dec 01 02:41:23.660 INFO [stderr]    |
Dec 01 02:41:23.660 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 01 02:41:23.660 INFO [stderr] 
Dec 01 02:41:23.672 INFO [stderr] warning: enum is never used: `List`
Dec 01 02:41:23.672 INFO [stderr]  --> src/list.rs:3:1
Dec 01 02:41:23.672 INFO [stderr]   |
Dec 01 02:41:23.672 INFO [stderr] 3 | pub enum List<T> {
Dec 01 02:41:23.672 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 01 02:41:23.672 INFO [stderr]   |
Dec 01 02:41:23.672 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 01 02:41:23.672 INFO [stderr] 
Dec 01 02:41:23.672 INFO [stderr] warning: method is never used: `new`
Dec 01 02:41:23.672 INFO [stderr]  --> src/list.rs:9:5
Dec 01 02:41:23.672 INFO [stderr]   |
Dec 01 02:41:23.672 INFO [stderr] 9 |     pub fn new() -> List<T> { List::Nil }
Dec 01 02:41:23.672 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:23.673 INFO [stderr] 
Dec 01 02:41:23.673 INFO [stderr] warning: method is never used: `cons`
Dec 01 02:41:23.673 INFO [stderr]   --> src/list.rs:11:5
Dec 01 02:41:23.673 INFO [stderr]    |
Dec 01 02:41:23.673 INFO [stderr] 11 |     pub fn cons(self, x: T) -> List<T> { List::Cons(x, Box::new(self)) }
Dec 01 02:41:23.673 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:23.673 INFO [stderr] 
Dec 01 02:41:23.674 INFO [stderr] warning: method is never used: `head`
Dec 01 02:41:23.674 INFO [stderr]   --> src/list.rs:13:5
Dec 01 02:41:23.676 INFO [stderr]    |
Dec 01 02:41:23.676 INFO [stderr] 13 |     pub fn head(self) -> Option<T> {
Dec 01 02:41:23.676 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:23.676 INFO [stderr] 
Dec 01 02:41:23.676 INFO [stderr] warning: method is never used: `tail`
Dec 01 02:41:23.676 INFO [stderr]   --> src/list.rs:20:5
Dec 01 02:41:23.676 INFO [stderr]    |
Dec 01 02:41:23.676 INFO [stderr] 20 |     pub fn tail(&self) -> Option<&List<T>> {
Dec 01 02:41:23.676 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:23.676 INFO [stderr] 
Dec 01 02:41:23.678 INFO [stderr] warning: method is never used: `head_ref`
Dec 01 02:41:23.678 INFO [stderr]   --> src/list.rs:29:5
Dec 01 02:41:23.678 INFO [stderr]    |
Dec 01 02:41:23.678 INFO [stderr] 29 |     pub fn head_ref(&self) -> Option<T> {
Dec 01 02:41:23.678 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:23.678 INFO [stderr] 
Dec 01 02:41:23.678 INFO [stderr] warning: constant item is never used: `N`
Dec 01 02:41:23.678 INFO [stderr]   --> src/main.rs:13:5
Dec 01 02:41:23.678 INFO [stderr]    |
Dec 01 02:41:23.678 INFO [stderr] 13 |     const N: usize = 10;
Dec 01 02:41:23.678 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:23.678 INFO [stderr] 
Dec 01 02:41:23.678 INFO [stderr] warning: function is never used: `test_list`
Dec 01 02:41:23.678 INFO [stderr]   --> src/main.rs:39:1
Dec 01 02:41:23.678 INFO [stderr]    |
Dec 01 02:41:23.678 INFO [stderr] 39 | fn test_list() {
Dec 01 02:41:23.678 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 01 02:41:23.679 INFO [stderr] 
Dec 01 02:41:24.203 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
Dec 01 02:41:24.203 INFO [stderr] su: No module specific data is present
Dec 01 02:41:24.837 INFO running `"docker" "inspect" "cc201336feeb756865a7f5ccfe5e254d63e9373033afe13cbe80e3ac2b5c6df4"`
Dec 01 02:41:25.055 INFO running `"docker" "rm" "-f" "cc201336feeb756865a7f5ccfe5e254d63e9373033afe13cbe80e3ac2b5c6df4"`
Dec 01 02:41:25.355 INFO [stdout] cc201336feeb756865a7f5ccfe5e254d63e9373033afe13cbe80e3ac2b5c6df4
Dec 01 02:41:25.357 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 02:41:25.791 INFO [stdout] 5ddc37a8c52dec649ecdbcf274ae763dc8015619d2c538a61fd5a53dcbf8669e
Dec 01 02:41:25.796 INFO running `"docker" "start" "-a" "5ddc37a8c52dec649ecdbcf274ae763dc8015619d2c538a61fd5a53dcbf8669e"`
Dec 01 02:41:26.812 INFO [stderr] usermod: no changes
Dec 01 02:41:26.855 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 01 02:41:26.857 INFO [stderr]      Running /target/debug/deps/rust_hello-49e06ba81e628cb1
Dec 01 02:41:26.859 INFO [stdout] 
Dec 01 02:41:26.859 INFO [stdout] running 0 tests
Dec 01 02:41:26.859 INFO [stdout] 
Dec 01 02:41:26.859 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 01 02:41:26.859 INFO [stdout] 
Dec 01 02:41:26.863 INFO [stderr] su: No module specific data is present
Dec 01 02:41:27.423 INFO running `"docker" "inspect" "5ddc37a8c52dec649ecdbcf274ae763dc8015619d2c538a61fd5a53dcbf8669e"`
Dec 01 02:41:27.729 INFO running `"docker" "rm" "-f" "5ddc37a8c52dec649ecdbcf274ae763dc8015619d2c538a61fd5a53dcbf8669e"`
Dec 01 02:41:28.026 INFO [stdout] 5ddc37a8c52dec649ecdbcf274ae763dc8015619d2c538a61fd5a53dcbf8669e
