Dec 05 10:40:56.511 INFO checking mai-0.1.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 10:40:56.511 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 10:40:56.904 INFO [stdout] 99665b3db52944180229e0ee4f8a5e96945d0839d6a5a3dbca1538d8c14adc78
Dec 05 10:40:56.905 INFO running `"docker" "start" "-a" "99665b3db52944180229e0ee4f8a5e96945d0839d6a5a3dbca1538d8c14adc78"`
Dec 05 10:40:57.801 INFO [stderr] usermod: no changes
Dec 05 10:40:57.884 INFO [stderr]     Checking lifeguard v0.5.2
Dec 05 10:40:58.419 INFO [stderr]     Checking mai v0.1.0 (/source)
Dec 05 10:41:00.331 INFO [stderr] warning: unused import: `Evented`
Dec 05 10:41:00.331 INFO [stderr]  --> src/protocol_engine.rs:1:11
Dec 05 10:41:00.331 INFO [stderr]   |
Dec 05 10:41:00.331 INFO [stderr] 1 | use mio::{Evented, EventSet, PollOpt, Token};
Dec 05 10:41:00.331 INFO [stderr]   |           ^^^^^^^
Dec 05 10:41:00.331 INFO [stderr]   |
Dec 05 10:41:00.331 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 10:41:00.331 INFO [stderr] 
Dec 05 10:41:00.331 INFO [stderr] warning: unused import: `Recycleable`
Dec 05 10:41:00.331 INFO [stderr]  --> src/protocol_engine.rs:5:23
Dec 05 10:41:00.331 INFO [stderr]   |
Dec 05 10:41:00.331 INFO [stderr] 5 | use lifeguard::{self, Recycleable, Pool, StartingSize, MaxSize, Supplier};
Dec 05 10:41:00.331 INFO [stderr]   |                       ^^^^^^^^^^^
Dec 05 10:41:00.331 INFO [stderr] 
Dec 05 10:41:00.331 INFO [stderr] warning: unused import: `Read`
Dec 05 10:41:00.331 INFO [stderr]  --> src/protocol_engine.rs:8:21
Dec 05 10:41:00.331 INFO [stderr]   |
Dec 05 10:41:00.331 INFO [stderr] 8 | use std::io::{self, Read, Write};
Dec 05 10:41:00.331 INFO [stderr]   |                     ^^^^
Dec 05 10:41:00.331 INFO [stderr] 
Dec 05 10:41:00.331 INFO [stderr] warning: unused import: `Write`
Dec 05 10:41:00.331 INFO [stderr]  --> src/protocol_engine.rs:8:27
Dec 05 10:41:00.331 INFO [stderr]   |
Dec 05 10:41:00.331 INFO [stderr] 8 | use std::io::{self, Read, Write};
Dec 05 10:41:00.331 INFO [stderr]   |                           ^^^^^
Dec 05 10:41:00.331 INFO [stderr] 
Dec 05 10:41:00.399 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:41:00.399 INFO [stderr]    --> src/evented_frame_stream.rs:215:9
Dec 05 10:41:00.399 INFO [stderr]     |
Dec 05 10:41:00.399 INFO [stderr] 215 |     let mut outbox = self.outbox(outbox_pool);
Dec 05 10:41:00.399 INFO [stderr]     |         ----^^^^^^
Dec 05 10:41:00.399 INFO [stderr]     |         |
Dec 05 10:41:00.399 INFO [stderr]     |         help: remove this `mut`
Dec 05 10:41:00.399 INFO [stderr]     |
Dec 05 10:41:00.399 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 10:41:00.399 INFO [stderr] 
Dec 05 10:41:00.415 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:41:00.415 INFO [stderr]    --> src/protocol_engine.rs:131:12
Dec 05 10:41:00.415 INFO [stderr]     |
Dec 05 10:41:00.415 INFO [stderr] 131 |        let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
Dec 05 10:41:00.415 INFO [stderr]     |            ----^^^^^^^^^^^^^^
Dec 05 10:41:00.415 INFO [stderr]     |            |
Dec 05 10:41:00.415 INFO [stderr]     |            help: remove this `mut`
Dec 05 10:41:00.415 INFO [stderr] 
Dec 05 10:41:00.415 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:41:00.415 INFO [stderr]    --> src/protocol_engine.rs:133:22
Dec 05 10:41:00.415 INFO [stderr]     |
Dec 05 10:41:00.415 INFO [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
Dec 05 10:41:00.415 INFO [stderr]     |                      ----^^^^^^^
Dec 05 10:41:00.415 INFO [stderr]     |                      |
Dec 05 10:41:00.415 INFO [stderr]     |                      help: remove this `mut`
Dec 05 10:41:00.415 INFO [stderr] 
Dec 05 10:41:00.415 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:41:00.415 INFO [stderr]    --> src/protocol_engine.rs:133:13
Dec 05 10:41:00.415 INFO [stderr]     |
Dec 05 10:41:00.415 INFO [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
Dec 05 10:41:00.415 INFO [stderr]     |             ----^^^
Dec 05 10:41:00.415 INFO [stderr]     |             |
Dec 05 10:41:00.415 INFO [stderr]     |             help: remove this `mut`
Dec 05 10:41:00.415 INFO [stderr] 
Dec 05 10:41:00.460 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:41:00.460 INFO [stderr]    --> src/protocol_engine.rs:531:26
Dec 05 10:41:00.460 INFO [stderr]     |
Dec 05 10:41:00.460 INFO [stderr] 531 |     let (codec, _stream, mut write_buffer, outbox) = efs.writing_toolset(buffer_pool, outbox_pool);
Dec 05 10:41:00.460 INFO [stderr]     |                          ----^^^^^^^^^^^^
Dec 05 10:41:00.460 INFO [stderr]     |                          |
Dec 05 10:41:00.460 INFO [stderr]     |                          help: remove this `mut`
Dec 05 10:41:00.460 INFO [stderr] 
Dec 05 10:41:00.515 INFO [stderr] warning: unused import: `Evented`
Dec 05 10:41:00.515 INFO [stderr]  --> src/protocol_engine.rs:1:11
Dec 05 10:41:00.515 INFO [stderr]   |
Dec 05 10:41:00.515 INFO [stderr] 1 | use mio::{Evented, EventSet, PollOpt, Token};
Dec 05 10:41:00.515 INFO [stderr]   |           ^^^^^^^
Dec 05 10:41:00.515 INFO [stderr]   |
Dec 05 10:41:00.515 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 10:41:00.515 INFO [stderr] 
Dec 05 10:41:00.515 INFO [stderr] warning: unused import: `Recycleable`
Dec 05 10:41:00.515 INFO [stderr]  --> src/protocol_engine.rs:5:23
Dec 05 10:41:00.515 INFO [stderr]   |
Dec 05 10:41:00.515 INFO [stderr] 5 | use lifeguard::{self, Recycleable, Pool, StartingSize, MaxSize, Supplier};
Dec 05 10:41:00.515 INFO [stderr]   |                       ^^^^^^^^^^^
Dec 05 10:41:00.515 INFO [stderr] 
Dec 05 10:41:00.515 INFO [stderr] warning: unused import: `Read`
Dec 05 10:41:00.515 INFO [stderr]  --> src/protocol_engine.rs:8:21
Dec 05 10:41:00.515 INFO [stderr]   |
Dec 05 10:41:00.515 INFO [stderr] 8 | use std::io::{self, Read, Write};
Dec 05 10:41:00.515 INFO [stderr]   |                     ^^^^
Dec 05 10:41:00.515 INFO [stderr] 
Dec 05 10:41:00.515 INFO [stderr] warning: unused import: `Write`
Dec 05 10:41:00.515 INFO [stderr]  --> src/protocol_engine.rs:8:27
Dec 05 10:41:00.515 INFO [stderr]   |
Dec 05 10:41:00.515 INFO [stderr] 8 | use std::io::{self, Read, Write};
Dec 05 10:41:00.515 INFO [stderr]   |                           ^^^^^
Dec 05 10:41:00.515 INFO [stderr] 
Dec 05 10:41:00.579 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:41:00.579 INFO [stderr]    --> src/evented_frame_stream.rs:215:9
Dec 05 10:41:00.579 INFO [stderr]     |
Dec 05 10:41:00.579 INFO [stderr] 215 |     let mut outbox = self.outbox(outbox_pool);
Dec 05 10:41:00.579 INFO [stderr]     |         ----^^^^^^
Dec 05 10:41:00.579 INFO [stderr]     |         |
Dec 05 10:41:00.579 INFO [stderr]     |         help: remove this `mut`
Dec 05 10:41:00.579 INFO [stderr]     |
Dec 05 10:41:00.579 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 10:41:00.579 INFO [stderr] 
Dec 05 10:41:00.595 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:41:00.595 INFO [stderr]    --> src/protocol_engine.rs:131:12
Dec 05 10:41:00.595 INFO [stderr]     |
Dec 05 10:41:00.595 INFO [stderr] 131 |        let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
Dec 05 10:41:00.595 INFO [stderr]     |            ----^^^^^^^^^^^^^^
Dec 05 10:41:00.595 INFO [stderr]     |            |
Dec 05 10:41:00.595 INFO [stderr]     |            help: remove this `mut`
Dec 05 10:41:00.595 INFO [stderr] 
Dec 05 10:41:00.595 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:41:00.595 INFO [stderr]    --> src/protocol_engine.rs:133:22
Dec 05 10:41:00.595 INFO [stderr]     |
Dec 05 10:41:00.595 INFO [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
Dec 05 10:41:00.595 INFO [stderr]     |                      ----^^^^^^^
Dec 05 10:41:00.595 INFO [stderr]     |                      |
Dec 05 10:41:00.595 INFO [stderr]     |                      help: remove this `mut`
Dec 05 10:41:00.595 INFO [stderr] 
Dec 05 10:41:00.595 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:41:00.595 INFO [stderr]    --> src/protocol_engine.rs:133:13
Dec 05 10:41:00.595 INFO [stderr]     |
Dec 05 10:41:00.595 INFO [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
Dec 05 10:41:00.595 INFO [stderr]     |             ----^^^
Dec 05 10:41:00.595 INFO [stderr]     |             |
Dec 05 10:41:00.595 INFO [stderr]     |             help: remove this `mut`
Dec 05 10:41:00.595 INFO [stderr] 
Dec 05 10:41:00.631 INFO [stderr] warning: variable does not need to be mutable
Dec 05 10:41:00.631 INFO [stderr]    --> src/protocol_engine.rs:531:26
Dec 05 10:41:00.631 INFO [stderr]     |
Dec 05 10:41:00.631 INFO [stderr] 531 |     let (codec, _stream, mut write_buffer, outbox) = efs.writing_toolset(buffer_pool, outbox_pool);
Dec 05 10:41:00.631 INFO [stderr]     |                          ----^^^^^^^^^^^^
Dec 05 10:41:00.631 INFO [stderr]     |                          |
Dec 05 10:41:00.631 INFO [stderr]     |                          help: remove this `mut`
Dec 05 10:41:00.631 INFO [stderr] 
Dec 05 10:41:02.149 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.34s
Dec 05 10:41:02.152 INFO [stderr] su: No module specific data is present
Dec 05 10:41:02.463 INFO running `"docker" "inspect" "99665b3db52944180229e0ee4f8a5e96945d0839d6a5a3dbca1538d8c14adc78"`
Dec 05 10:41:02.566 INFO running `"docker" "rm" "-f" "99665b3db52944180229e0ee4f8a5e96945d0839d6a5a3dbca1538d8c14adc78"`
Dec 05 10:41:02.707 INFO [stdout] 99665b3db52944180229e0ee4f8a5e96945d0839d6a5a3dbca1538d8c14adc78