Dec 04 23:33:05.624 INFO checking VoxWave/Compilers2018 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 23:33:05.624 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-5/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 23:33:06.095 INFO [stdout] 17e98f020d7d0dd28446696ba3fbadb1be076ed044e59156f8a5ab11c53f54f5
Dec 04 23:33:06.095 INFO running `"docker" "start" "-a" "17e98f020d7d0dd28446696ba3fbadb1be076ed044e59156f8a5ab11c53f54f5"`
Dec 04 23:33:07.402 INFO [stderr] usermod: no changes
Dec 04 23:33:07.546 INFO [stderr]     Checking char_stream v0.1.8
Dec 04 23:33:07.555 INFO [stderr]     Checking rayon-core v1.4.0
Dec 04 23:33:09.513 INFO [stderr]     Checking rayon v1.0.1
Dec 04 23:33:13.259 INFO [stderr]     Checking minipl-compiler v0.1.0 (/source)
Dec 04 23:33:14.863 INFO [stderr] warning: unused import: `std::sync::mpsc::Sender`
Dec 04 23:33:14.863 INFO [stderr]  --> src/main.rs:7:5
Dec 04 23:33:14.863 INFO [stderr]   |
Dec 04 23:33:14.863 INFO [stderr] 7 | use std::sync::mpsc::Sender;
Dec 04 23:33:14.863 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:14.863 INFO [stderr]   |
Dec 04 23:33:14.863 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 23:33:14.863 INFO [stderr] 
Dec 04 23:33:14.863 INFO [stderr] warning: unused import: `std::sync::mpsc::Receiver`
Dec 04 23:33:14.863 INFO [stderr]  --> src/main.rs:8:5
Dec 04 23:33:14.863 INFO [stderr]   |
Dec 04 23:33:14.863 INFO [stderr] 8 | use std::sync::mpsc::Receiver;
Dec 04 23:33:14.863 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:14.863 INFO [stderr] 
Dec 04 23:33:14.863 INFO [stderr] warning: unused import: `std::process::abort`
Dec 04 23:33:14.863 INFO [stderr]   --> src/main.rs:10:5
Dec 04 23:33:14.863 INFO [stderr]    |
Dec 04 23:33:14.863 INFO [stderr] 10 | use std::process::abort;
Dec 04 23:33:14.863 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:14.863 INFO [stderr] 
Dec 04 23:33:14.947 INFO [stderr] warning: unused import: `std::sync::mpsc::Sender`
Dec 04 23:33:14.947 INFO [stderr]  --> src/main.rs:7:5
Dec 04 23:33:14.947 INFO [stderr]   |
Dec 04 23:33:14.947 INFO [stderr] 7 | use std::sync::mpsc::Sender;
Dec 04 23:33:14.947 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:14.947 INFO [stderr]   |
Dec 04 23:33:14.947 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 23:33:14.947 INFO [stderr] 
Dec 04 23:33:14.947 INFO [stderr] warning: unused import: `std::sync::mpsc::Receiver`
Dec 04 23:33:14.947 INFO [stderr]  --> src/main.rs:8:5
Dec 04 23:33:14.947 INFO [stderr]   |
Dec 04 23:33:14.947 INFO [stderr] 8 | use std::sync::mpsc::Receiver;
Dec 04 23:33:14.947 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:14.947 INFO [stderr] 
Dec 04 23:33:14.947 INFO [stderr] warning: unused import: `std::process::abort`
Dec 04 23:33:14.947 INFO [stderr]   --> src/main.rs:10:5
Dec 04 23:33:14.947 INFO [stderr]    |
Dec 04 23:33:14.947 INFO [stderr] 10 | use std::process::abort;
Dec 04 23:33:14.947 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:14.947 INFO [stderr] 
Dec 04 23:33:15.279 INFO [stderr] warning: unreachable pattern
Dec 04 23:33:15.279 INFO [stderr]    --> src/parser/mod.rs:255:17
Dec 04 23:33:15.279 INFO [stderr]     |
Dec 04 23:33:15.279 INFO [stderr] 255 |                 _ => panic!("unexpected Token {:#?} read during", t),
Dec 04 23:33:15.279 INFO [stderr]     |                 ^
Dec 04 23:33:15.279 INFO [stderr]     |
Dec 04 23:33:15.279 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 04 23:33:15.279 INFO [stderr] 
Dec 04 23:33:15.287 INFO [stderr] warning: unused variable: `b`
Dec 04 23:33:15.287 INFO [stderr]    --> src/interpreter.rs:207:33
Dec 04 23:33:15.287 INFO [stderr]     |
Dec 04 23:33:15.287 INFO [stderr] 207 |                     Value::Bool(b) => panic!("boolean printing is not supported"),
Dec 04 23:33:15.287 INFO [stderr]     |                                 ^ help: consider using `_b` instead
Dec 04 23:33:15.287 INFO [stderr]     |
Dec 04 23:33:15.287 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 04 23:33:15.287 INFO [stderr] 
Dec 04 23:33:15.290 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:33:15.291 INFO [stderr]   --> src/main.rs:29:27
Dec 04 23:33:15.291 INFO [stderr]    |
Dec 04 23:33:15.291 INFO [stderr] 29 |     let (mut kill_switch, mut kill_signal) = channel();
Dec 04 23:33:15.291 INFO [stderr]    |                           ----^^^^^^^^^^^
Dec 04 23:33:15.291 INFO [stderr]    |                           |
Dec 04 23:33:15.291 INFO [stderr]    |                           help: remove this `mut`
Dec 04 23:33:15.291 INFO [stderr]    |
Dec 04 23:33:15.291 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 23:33:15.291 INFO [stderr] 
Dec 04 23:33:15.291 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:33:15.291 INFO [stderr]   --> src/main.rs:29:10
Dec 04 23:33:15.291 INFO [stderr]    |
Dec 04 23:33:15.291 INFO [stderr] 29 |     let (mut kill_switch, mut kill_signal) = channel();
Dec 04 23:33:15.291 INFO [stderr]    |          ----^^^^^^^^^^^
Dec 04 23:33:15.291 INFO [stderr]    |          |
Dec 04 23:33:15.291 INFO [stderr]    |          help: remove this `mut`
Dec 04 23:33:15.291 INFO [stderr] 
Dec 04 23:33:15.379 INFO [stderr] warning: unreachable pattern
Dec 04 23:33:15.379 INFO [stderr]    --> src/parser/mod.rs:255:17
Dec 04 23:33:15.379 INFO [stderr]     |
Dec 04 23:33:15.379 INFO [stderr] 255 |                 _ => panic!("unexpected Token {:#?} read during", t),
Dec 04 23:33:15.379 INFO [stderr]     |                 ^
Dec 04 23:33:15.379 INFO [stderr]     |
Dec 04 23:33:15.379 INFO [stderr]     = note: #[warn(unreachable_patterns)] on by default
Dec 04 23:33:15.379 INFO [stderr] 
Dec 04 23:33:15.391 INFO [stderr] warning: unused variable: `b`
Dec 04 23:33:15.391 INFO [stderr]    --> src/interpreter.rs:207:33
Dec 04 23:33:15.391 INFO [stderr]     |
Dec 04 23:33:15.391 INFO [stderr] 207 |                     Value::Bool(b) => panic!("boolean printing is not supported"),
Dec 04 23:33:15.391 INFO [stderr]     |                                 ^ help: consider using `_b` instead
Dec 04 23:33:15.391 INFO [stderr]     |
Dec 04 23:33:15.391 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 04 23:33:15.391 INFO [stderr] 
Dec 04 23:33:15.392 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:33:15.392 INFO [stderr]   --> src/main.rs:29:10
Dec 04 23:33:15.392 INFO [stderr]    |
Dec 04 23:33:15.392 INFO [stderr] 29 |     let (mut kill_switch, mut kill_signal) = channel();
Dec 04 23:33:15.392 INFO [stderr]    |          ----^^^^^^^^^^^
Dec 04 23:33:15.392 INFO [stderr]    |          |
Dec 04 23:33:15.392 INFO [stderr]    |          help: remove this `mut`
Dec 04 23:33:15.392 INFO [stderr]    |
Dec 04 23:33:15.392 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 23:33:15.392 INFO [stderr] 
Dec 04 23:33:15.393 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:33:15.393 INFO [stderr]   --> src/main.rs:29:27
Dec 04 23:33:15.393 INFO [stderr]    |
Dec 04 23:33:15.393 INFO [stderr] 29 |     let (mut kill_switch, mut kill_signal) = channel();
Dec 04 23:33:15.393 INFO [stderr]    |                           ----^^^^^^^^^^^
Dec 04 23:33:15.393 INFO [stderr]    |                           |
Dec 04 23:33:15.393 INFO [stderr]    |                           help: remove this `mut`
Dec 04 23:33:15.393 INFO [stderr] 
Dec 04 23:33:15.463 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:33:15.463 INFO [stderr]   --> src/parser/test.rs:20:9
Dec 04 23:33:15.463 INFO [stderr]    |
Dec 04 23:33:15.463 INFO [stderr] 20 |     let mut expected: VecDeque<_> = vec![
Dec 04 23:33:15.463 INFO [stderr]    |         ----^^^^^^^^
Dec 04 23:33:15.463 INFO [stderr]    |         |
Dec 04 23:33:15.463 INFO [stderr]    |         help: remove this `mut`
Dec 04 23:33:15.463 INFO [stderr] 
Dec 04 23:33:15.511 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:33:15.511 INFO [stderr]   --> src/main.rs:41:9
Dec 04 23:33:15.511 INFO [stderr]    |
Dec 04 23:33:15.511 INFO [stderr] 41 |         kill_switch.send(true);
Dec 04 23:33:15.511 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:15.511 INFO [stderr]    |
Dec 04 23:33:15.511 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 23:33:15.511 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:33:15.511 INFO [stderr] 
Dec 04 23:33:15.511 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:33:15.511 INFO [stderr]   --> src/main.rs:43:5
Dec 04 23:33:15.511 INFO [stderr]    |
Dec 04 23:33:15.511 INFO [stderr] 43 |     kill_signal.recv();
Dec 04 23:33:15.511 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:15.511 INFO [stderr]    |
Dec 04 23:33:15.511 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:33:15.511 INFO [stderr] 
Dec 04 23:33:15.547 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:33:15.547 INFO [stderr]   --> src/main.rs:41:9
Dec 04 23:33:15.547 INFO [stderr]    |
Dec 04 23:33:15.547 INFO [stderr] 41 |         kill_switch.send(true);
Dec 04 23:33:15.547 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:15.547 INFO [stderr]    |
Dec 04 23:33:15.547 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 23:33:15.547 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:33:15.547 INFO [stderr] 
Dec 04 23:33:15.547 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 23:33:15.547 INFO [stderr]   --> src/main.rs:43:5
Dec 04 23:33:15.547 INFO [stderr]    |
Dec 04 23:33:15.547 INFO [stderr] 43 |     kill_signal.recv();
Dec 04 23:33:15.547 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 04 23:33:15.547 INFO [stderr]    |
Dec 04 23:33:15.547 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 23:33:15.547 INFO [stderr] 
Dec 04 23:33:15.567 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.13s
Dec 04 23:33:15.571 INFO [stderr] su: No module specific data is present
Dec 04 23:33:16.235 INFO running `"docker" "inspect" "17e98f020d7d0dd28446696ba3fbadb1be076ed044e59156f8a5ab11c53f54f5"`
Dec 04 23:33:16.647 INFO running `"docker" "rm" "-f" "17e98f020d7d0dd28446696ba3fbadb1be076ed044e59156f8a5ab11c53f54f5"`
Dec 04 23:33:17.047 INFO [stdout] 17e98f020d7d0dd28446696ba3fbadb1be076ed044e59156f8a5ab11c53f54f5