Dec 11 23:40:37.152 INFO checking VoxWave/Compilers2018 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 23:40:37.152 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 23:40:37.624 INFO [stdout] 76603120af15cc182a86a6ac73b6755cce3e95f6533561ee71ea01e1d765af97
Dec 11 23:40:37.630 INFO running `"docker" "start" "-a" "76603120af15cc182a86a6ac73b6755cce3e95f6533561ee71ea01e1d765af97"`
Dec 11 23:40:39.104 INFO [stderr] usermod: no changes
Dec 11 23:40:39.300 INFO [stderr]     Checking char_stream v0.1.8
Dec 11 23:40:39.300 INFO [stderr]     Checking num-complex v0.1.43
Dec 11 23:40:39.308 INFO [stderr]     Checking rayon-core v1.4.0
Dec 11 23:40:41.902 INFO [stderr]     Checking num v0.1.42
Dec 11 23:40:42.168 INFO [stderr]     Checking rayon v1.0.1
Dec 11 23:40:46.400 INFO [stderr]     Checking minipl-compiler v0.1.0 (/source)
Dec 11 23:40:48.328 INFO [stderr] warning: unused import: `std::sync::mpsc::Sender`
Dec 11 23:40:48.328 INFO [stderr]  --> src/main.rs:7:5
Dec 11 23:40:48.328 INFO [stderr]   |
Dec 11 23:40:48.328 INFO [stderr] 7 | use std::sync::mpsc::Sender;
Dec 11 23:40:48.328 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:40:48.329 INFO [stderr]   |
Dec 11 23:40:48.329 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 23:40:48.329 INFO [stderr] 
Dec 11 23:40:48.329 INFO [stderr] warning: unused import: `std::sync::mpsc::Receiver`
Dec 11 23:40:48.329 INFO [stderr]  --> src/main.rs:8:5
Dec 11 23:40:48.329 INFO [stderr]   |
Dec 11 23:40:48.329 INFO [stderr] 8 | use std::sync::mpsc::Receiver;
Dec 11 23:40:48.329 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:40:48.329 INFO [stderr] 
Dec 11 23:40:48.329 INFO [stderr] warning: unused import: `std::process::abort`
Dec 11 23:40:48.329 INFO [stderr]   --> src/main.rs:10:5
Dec 11 23:40:48.329 INFO [stderr]    |
Dec 11 23:40:48.329 INFO [stderr] 10 | use std::process::abort;
Dec 11 23:40:48.329 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 11 23:40:48.329 INFO [stderr] 
Dec 11 23:40:48.458 INFO [stderr] warning: unused import: `std::sync::mpsc::Sender`
Dec 11 23:40:48.458 INFO [stderr]  --> src/main.rs:7:5
Dec 11 23:40:48.458 INFO [stderr]   |
Dec 11 23:40:48.458 INFO [stderr] 7 | use std::sync::mpsc::Sender;
Dec 11 23:40:48.458 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:40:48.458 INFO [stderr]   |
Dec 11 23:40:48.458 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 23:40:48.458 INFO [stderr] 
Dec 11 23:40:48.458 INFO [stderr] warning: unused import: `std::sync::mpsc::Receiver`
Dec 11 23:40:48.458 INFO [stderr]  --> src/main.rs:8:5
Dec 11 23:40:48.458 INFO [stderr]   |
Dec 11 23:40:48.458 INFO [stderr] 8 | use std::sync::mpsc::Receiver;
Dec 11 23:40:48.458 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:40:48.458 INFO [stderr] 
Dec 11 23:40:48.458 INFO [stderr] warning: unused import: `std::process::abort`
Dec 11 23:40:48.458 INFO [stderr]   --> src/main.rs:10:5
Dec 11 23:40:48.458 INFO [stderr]    |
Dec 11 23:40:48.458 INFO [stderr] 10 | use std::process::abort;
Dec 11 23:40:48.458 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 11 23:40:48.458 INFO [stderr] 
Dec 11 23:40:48.654 INFO [stderr] warning: unreachable pattern
Dec 11 23:40:48.654 INFO [stderr]    --> src/parser/mod.rs:255:17
Dec 11 23:40:48.654 INFO [stderr]     |
Dec 11 23:40:48.654 INFO [stderr] 255 |                 _ => panic!("unexpected Token {:#?} read during", t),
Dec 11 23:40:48.654 INFO [stderr]     |                 ^
Dec 11 23:40:48.654 INFO [stderr]     |
Dec 11 23:40:48.654 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 11 23:40:48.654 INFO [stderr] 
Dec 11 23:40:48.658 INFO [stderr] warning: unused variable: `b`
Dec 11 23:40:48.658 INFO [stderr]    --> src/interpreter.rs:207:33
Dec 11 23:40:48.658 INFO [stderr]     |
Dec 11 23:40:48.658 INFO [stderr] 207 |                     Value::Bool(b) => panic!("boolean printing is not supported"),
Dec 11 23:40:48.658 INFO [stderr]     |                                 ^ help: consider using `_b` instead
Dec 11 23:40:48.658 INFO [stderr]     |
Dec 11 23:40:48.658 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 23:40:48.658 INFO [stderr] 
Dec 11 23:40:48.661 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:40:48.661 INFO [stderr]   --> src/main.rs:29:10
Dec 11 23:40:48.661 INFO [stderr]    |
Dec 11 23:40:48.661 INFO [stderr] 29 |     let (mut kill_switch, mut kill_signal) = channel();
Dec 11 23:40:48.661 INFO [stderr]    |          ----^^^^^^^^^^^
Dec 11 23:40:48.661 INFO [stderr]    |          |
Dec 11 23:40:48.661 INFO [stderr]    |          help: remove this `mut`
Dec 11 23:40:48.661 INFO [stderr]    |
Dec 11 23:40:48.661 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 23:40:48.661 INFO [stderr] 
Dec 11 23:40:48.661 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:40:48.661 INFO [stderr]   --> src/main.rs:29:27
Dec 11 23:40:48.661 INFO [stderr]    |
Dec 11 23:40:48.661 INFO [stderr] 29 |     let (mut kill_switch, mut kill_signal) = channel();
Dec 11 23:40:48.661 INFO [stderr]    |                           ----^^^^^^^^^^^
Dec 11 23:40:48.661 INFO [stderr]    |                           |
Dec 11 23:40:48.661 INFO [stderr]    |                           help: remove this `mut`
Dec 11 23:40:48.661 INFO [stderr] 
Dec 11 23:40:48.850 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 23:40:48.850 INFO [stderr]   --> src/main.rs:41:9
Dec 11 23:40:48.850 INFO [stderr]    |
Dec 11 23:40:48.851 INFO [stderr] 41 |         kill_switch.send(true);
Dec 11 23:40:48.851 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:40:48.851 INFO [stderr]    |
Dec 11 23:40:48.851 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 23:40:48.852 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 23:40:48.852 INFO [stderr] 
Dec 11 23:40:48.852 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 23:40:48.852 INFO [stderr]   --> src/main.rs:43:5
Dec 11 23:40:48.853 INFO [stderr]    |
Dec 11 23:40:48.853 INFO [stderr] 43 |     kill_signal.recv();
Dec 11 23:40:48.853 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 11 23:40:48.853 INFO [stderr]    |
Dec 11 23:40:48.855 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 23:40:48.855 INFO [stderr] 
Dec 11 23:40:48.916 INFO [stderr] warning: unreachable pattern
Dec 11 23:40:48.916 INFO [stderr]    --> src/parser/mod.rs:255:17
Dec 11 23:40:48.916 INFO [stderr]     |
Dec 11 23:40:48.916 INFO [stderr] 255 |                 _ => panic!("unexpected Token {:#?} read during", t),
Dec 11 23:40:48.917 INFO [stderr]     |                 ^
Dec 11 23:40:48.917 INFO [stderr]     |
Dec 11 23:40:48.917 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 11 23:40:48.917 INFO [stderr] 
Dec 11 23:40:48.921 INFO [stderr] warning: unused variable: `b`
Dec 11 23:40:48.921 INFO [stderr]    --> src/interpreter.rs:207:33
Dec 11 23:40:48.921 INFO [stderr]     |
Dec 11 23:40:48.921 INFO [stderr] 207 |                     Value::Bool(b) => panic!("boolean printing is not supported"),
Dec 11 23:40:48.921 INFO [stderr]     |                                 ^ help: consider using `_b` instead
Dec 11 23:40:48.921 INFO [stderr]     |
Dec 11 23:40:48.922 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 11 23:40:48.922 INFO [stderr] 
Dec 11 23:40:48.926 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:40:48.926 INFO [stderr]   --> src/main.rs:29:27
Dec 11 23:40:48.926 INFO [stderr]    |
Dec 11 23:40:48.926 INFO [stderr] 29 |     let (mut kill_switch, mut kill_signal) = channel();
Dec 11 23:40:48.926 INFO [stderr]    |                           ----^^^^^^^^^^^
Dec 11 23:40:48.927 INFO [stderr]    |                           |
Dec 11 23:40:48.927 INFO [stderr]    |                           help: remove this `mut`
Dec 11 23:40:48.927 INFO [stderr]    |
Dec 11 23:40:48.927 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 23:40:48.927 INFO [stderr] 
Dec 11 23:40:48.928 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:40:48.928 INFO [stderr]   --> src/main.rs:29:10
Dec 11 23:40:48.928 INFO [stderr]    |
Dec 11 23:40:48.928 INFO [stderr] 29 |     let (mut kill_switch, mut kill_signal) = channel();
Dec 11 23:40:48.928 INFO [stderr]    |          ----^^^^^^^^^^^
Dec 11 23:40:48.928 INFO [stderr]    |          |
Dec 11 23:40:48.928 INFO [stderr]    |          help: remove this `mut`
Dec 11 23:40:48.928 INFO [stderr] 
Dec 11 23:40:49.044 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:40:49.044 INFO [stderr]   --> src/parser/test.rs:20:9
Dec 11 23:40:49.044 INFO [stderr]    |
Dec 11 23:40:49.044 INFO [stderr] 20 |     let mut expected: VecDeque<_> = vec![
Dec 11 23:40:49.044 INFO [stderr]    |         ----^^^^^^^^
Dec 11 23:40:49.044 INFO [stderr]    |         |
Dec 11 23:40:49.044 INFO [stderr]    |         help: remove this `mut`
Dec 11 23:40:49.044 INFO [stderr] 
Dec 11 23:40:49.076 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 23:40:49.076 INFO [stderr]   --> src/main.rs:41:9
Dec 11 23:40:49.076 INFO [stderr]    |
Dec 11 23:40:49.076 INFO [stderr] 41 |         kill_switch.send(true);
Dec 11 23:40:49.076 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:40:49.076 INFO [stderr]    |
Dec 11 23:40:49.076 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 23:40:49.076 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 23:40:49.076 INFO [stderr] 
Dec 11 23:40:49.076 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 23:40:49.076 INFO [stderr]   --> src/main.rs:43:5
Dec 11 23:40:49.076 INFO [stderr]    |
Dec 11 23:40:49.076 INFO [stderr] 43 |     kill_signal.recv();
Dec 11 23:40:49.076 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 11 23:40:49.076 INFO [stderr]    |
Dec 11 23:40:49.076 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 23:40:49.076 INFO [stderr] 
Dec 11 23:40:49.109 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.98s
Dec 11 23:40:49.120 INFO [stderr] su: No module specific data is present
Dec 11 23:40:50.116 INFO running `"docker" "inspect" "76603120af15cc182a86a6ac73b6755cce3e95f6533561ee71ea01e1d765af97"`
Dec 11 23:40:50.398 INFO running `"docker" "rm" "-f" "76603120af15cc182a86a6ac73b6755cce3e95f6533561ee71ea01e1d765af97"`
Dec 11 23:40:50.675 INFO [stdout] 76603120af15cc182a86a6ac73b6755cce3e95f6533561ee71ea01e1d765af97