Dec 12 11:42:53.506 INFO checking mai-0.1.0 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 11:42:53.506 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 12 11:42:54.082 INFO [stdout] 9aa140d8c0a3817a65d2483b833163248796c5b254387358f9b4f65d27706a68
Dec 12 11:42:54.083 INFO running `"docker" "start" "-a" "9aa140d8c0a3817a65d2483b833163248796c5b254387358f9b4f65d27706a68"`
Dec 12 11:42:55.621 INFO [stderr] usermod: no changes
Dec 12 11:42:55.712 INFO [stderr]     Checking lifeguard v0.5.2
Dec 12 11:42:56.508 INFO [stderr]     Checking mai v0.1.0 (/source)
Dec 12 11:42:59.044 INFO [stderr] warning: unused import: `Evented`
Dec 12 11:42:59.045 INFO [stderr]  --> src/protocol_engine.rs:1:11
Dec 12 11:42:59.045 INFO [stderr]   |
Dec 12 11:42:59.045 INFO [stderr] 1 | use mio::{Evented, EventSet, PollOpt, Token};
Dec 12 11:42:59.045 INFO [stderr]   |           ^^^^^^^
Dec 12 11:42:59.046 INFO [stderr]   |
Dec 12 11:42:59.046 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 11:42:59.046 INFO [stderr] 
Dec 12 11:42:59.046 INFO [stderr] warning: unused import: `Recycleable`
Dec 12 11:42:59.047 INFO [stderr]  --> src/protocol_engine.rs:5:23
Dec 12 11:42:59.047 INFO [stderr]   |
Dec 12 11:42:59.047 INFO [stderr] 5 | use lifeguard::{self, Recycleable, Pool, StartingSize, MaxSize, Supplier};
Dec 12 11:42:59.047 INFO [stderr]   |                       ^^^^^^^^^^^
Dec 12 11:42:59.047 INFO [stderr] 
Dec 12 11:42:59.048 INFO [stderr] warning: unused import: `Read`
Dec 12 11:42:59.048 INFO [stderr]  --> src/protocol_engine.rs:8:21
Dec 12 11:42:59.048 INFO [stderr]   |
Dec 12 11:42:59.049 INFO [stderr] 8 | use std::io::{self, Read, Write};
Dec 12 11:42:59.049 INFO [stderr]   |                     ^^^^
Dec 12 11:42:59.049 INFO [stderr] 
Dec 12 11:42:59.049 INFO [stderr] warning: unused import: `Write`
Dec 12 11:42:59.049 INFO [stderr]  --> src/protocol_engine.rs:8:27
Dec 12 11:42:59.050 INFO [stderr]   |
Dec 12 11:42:59.050 INFO [stderr] 8 | use std::io::{self, Read, Write};
Dec 12 11:42:59.050 INFO [stderr]   |                           ^^^^^
Dec 12 11:42:59.050 INFO [stderr] 
Dec 12 11:42:59.162 INFO [stderr] warning: variable does not need to be mutable
Dec 12 11:42:59.162 INFO [stderr]    --> src/evented_frame_stream.rs:215:9
Dec 12 11:42:59.162 INFO [stderr]     |
Dec 12 11:42:59.162 INFO [stderr] 215 |     let mut outbox = self.outbox(outbox_pool);
Dec 12 11:42:59.163 INFO [stderr]     |         ----^^^^^^
Dec 12 11:42:59.163 INFO [stderr]     |         |
Dec 12 11:42:59.163 INFO [stderr]     |         help: remove this `mut`
Dec 12 11:42:59.163 INFO [stderr]     |
Dec 12 11:42:59.163 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 11:42:59.164 INFO [stderr] 
Dec 12 11:42:59.189 INFO [stderr] warning: variable does not need to be mutable
Dec 12 11:42:59.189 INFO [stderr]    --> src/protocol_engine.rs:131:12
Dec 12 11:42:59.189 INFO [stderr]     |
Dec 12 11:42:59.189 INFO [stderr] 131 |        let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
Dec 12 11:42:59.189 INFO [stderr]     |            ----^^^^^^^^^^^^^^
Dec 12 11:42:59.189 INFO [stderr]     |            |
Dec 12 11:42:59.189 INFO [stderr]     |            help: remove this `mut`
Dec 12 11:42:59.189 INFO [stderr] 
Dec 12 11:42:59.189 INFO [stderr] warning: variable does not need to be mutable
Dec 12 11:42:59.189 INFO [stderr]    --> src/protocol_engine.rs:133:22
Dec 12 11:42:59.189 INFO [stderr]     |
Dec 12 11:42:59.189 INFO [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
Dec 12 11:42:59.189 INFO [stderr]     |                      ----^^^^^^^
Dec 12 11:42:59.189 INFO [stderr]     |                      |
Dec 12 11:42:59.189 INFO [stderr]     |                      help: remove this `mut`
Dec 12 11:42:59.189 INFO [stderr] 
Dec 12 11:42:59.189 INFO [stderr] warning: variable does not need to be mutable
Dec 12 11:42:59.189 INFO [stderr]    --> src/protocol_engine.rs:133:13
Dec 12 11:42:59.189 INFO [stderr]     |
Dec 12 11:42:59.189 INFO [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
Dec 12 11:42:59.189 INFO [stderr]     |             ----^^^
Dec 12 11:42:59.189 INFO [stderr]     |             |
Dec 12 11:42:59.189 INFO [stderr]     |             help: remove this `mut`
Dec 12 11:42:59.189 INFO [stderr] 
Dec 12 11:42:59.267 INFO [stderr] warning: variable does not need to be mutable
Dec 12 11:42:59.267 INFO [stderr]    --> src/protocol_engine.rs:531:26
Dec 12 11:42:59.267 INFO [stderr]     |
Dec 12 11:42:59.267 INFO [stderr] 531 |     let (codec, _stream, mut write_buffer, outbox) = efs.writing_toolset(buffer_pool, outbox_pool);
Dec 12 11:42:59.267 INFO [stderr]     |                          ----^^^^^^^^^^^^
Dec 12 11:42:59.267 INFO [stderr]     |                          |
Dec 12 11:42:59.267 INFO [stderr]     |                          help: remove this `mut`
Dec 12 11:42:59.267 INFO [stderr] 
Dec 12 11:42:59.615 INFO [stderr] warning: unused import: `Evented`
Dec 12 11:42:59.616 INFO [stderr]  --> src/protocol_engine.rs:1:11
Dec 12 11:42:59.616 INFO [stderr]   |
Dec 12 11:42:59.616 INFO [stderr] 1 | use mio::{Evented, EventSet, PollOpt, Token};
Dec 12 11:42:59.616 INFO [stderr]   |           ^^^^^^^
Dec 12 11:42:59.617 INFO [stderr]   |
Dec 12 11:42:59.617 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 11:42:59.617 INFO [stderr] 
Dec 12 11:42:59.617 INFO [stderr] warning: unused import: `Recycleable`
Dec 12 11:42:59.617 INFO [stderr]  --> src/protocol_engine.rs:5:23
Dec 12 11:42:59.618 INFO [stderr]   |
Dec 12 11:42:59.618 INFO [stderr] 5 | use lifeguard::{self, Recycleable, Pool, StartingSize, MaxSize, Supplier};
Dec 12 11:42:59.618 INFO [stderr]   |                       ^^^^^^^^^^^
Dec 12 11:42:59.618 INFO [stderr] 
Dec 12 11:42:59.618 INFO [stderr] warning: unused import: `Read`
Dec 12 11:42:59.619 INFO [stderr]  --> src/protocol_engine.rs:8:21
Dec 12 11:42:59.619 INFO [stderr]   |
Dec 12 11:42:59.619 INFO [stderr] 8 | use std::io::{self, Read, Write};
Dec 12 11:42:59.619 INFO [stderr]   |                     ^^^^
Dec 12 11:42:59.619 INFO [stderr] 
Dec 12 11:42:59.619 INFO [stderr] warning: unused import: `Write`
Dec 12 11:42:59.620 INFO [stderr]  --> src/protocol_engine.rs:8:27
Dec 12 11:42:59.620 INFO [stderr]   |
Dec 12 11:42:59.620 INFO [stderr] 8 | use std::io::{self, Read, Write};
Dec 12 11:42:59.620 INFO [stderr]   |                           ^^^^^
Dec 12 11:42:59.620 INFO [stderr] 
Dec 12 11:42:59.673 INFO [stderr] warning: variable does not need to be mutable
Dec 12 11:42:59.674 INFO [stderr]    --> src/evented_frame_stream.rs:215:9
Dec 12 11:42:59.674 INFO [stderr]     |
Dec 12 11:42:59.674 INFO [stderr] 215 |     let mut outbox = self.outbox(outbox_pool);
Dec 12 11:42:59.674 INFO [stderr]     |         ----^^^^^^
Dec 12 11:42:59.675 INFO [stderr]     |         |
Dec 12 11:42:59.675 INFO [stderr]     |         help: remove this `mut`
Dec 12 11:42:59.675 INFO [stderr]     |
Dec 12 11:42:59.675 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 12 11:42:59.675 INFO [stderr] 
Dec 12 11:42:59.688 INFO [stderr] warning: variable does not need to be mutable
Dec 12 11:42:59.688 INFO [stderr]    --> src/protocol_engine.rs:131:12
Dec 12 11:42:59.689 INFO [stderr]     |
Dec 12 11:42:59.689 INFO [stderr] 131 |        let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
Dec 12 11:42:59.689 INFO [stderr]     |            ----^^^^^^^^^^^^^^
Dec 12 11:42:59.689 INFO [stderr]     |            |
Dec 12 11:42:59.690 INFO [stderr]     |            help: remove this `mut`
Dec 12 11:42:59.690 INFO [stderr] 
Dec 12 11:42:59.690 INFO [stderr] warning: variable does not need to be mutable
Dec 12 11:42:59.690 INFO [stderr]    --> src/protocol_engine.rs:133:22
Dec 12 11:42:59.690 INFO [stderr]     |
Dec 12 11:42:59.691 INFO [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
Dec 12 11:42:59.691 INFO [stderr]     |                      ----^^^^^^^
Dec 12 11:42:59.691 INFO [stderr]     |                      |
Dec 12 11:42:59.691 INFO [stderr]     |                      help: remove this `mut`
Dec 12 11:42:59.691 INFO [stderr] 
Dec 12 11:42:59.692 INFO [stderr] warning: variable does not need to be mutable
Dec 12 11:42:59.692 INFO [stderr]    --> src/protocol_engine.rs:133:13
Dec 12 11:42:59.692 INFO [stderr]     |
Dec 12 11:42:59.692 INFO [stderr] 133 |        let (mut efs, mut session) = stream_session.components();
Dec 12 11:42:59.693 INFO [stderr]     |             ----^^^
Dec 12 11:42:59.693 INFO [stderr]     |             |
Dec 12 11:42:59.693 INFO [stderr]     |             help: remove this `mut`
Dec 12 11:42:59.693 INFO [stderr] 
Dec 12 11:42:59.729 INFO [stderr] warning: variable does not need to be mutable
Dec 12 11:42:59.729 INFO [stderr]    --> src/protocol_engine.rs:531:26
Dec 12 11:42:59.730 INFO [stderr]     |
Dec 12 11:42:59.730 INFO [stderr] 531 |     let (codec, _stream, mut write_buffer, outbox) = efs.writing_toolset(buffer_pool, outbox_pool);
Dec 12 11:42:59.730 INFO [stderr]     |                          ----^^^^^^^^^^^^
Dec 12 11:42:59.730 INFO [stderr]     |                          |
Dec 12 11:42:59.730 INFO [stderr]     |                          help: remove this `mut`
Dec 12 11:42:59.731 INFO [stderr] 
Dec 12 11:43:01.548 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.91s
Dec 12 11:43:01.552 INFO [stderr] su: No module specific data is present
Dec 12 11:43:02.696 INFO running `"docker" "inspect" "9aa140d8c0a3817a65d2483b833163248796c5b254387358f9b4f65d27706a68"`
Dec 12 11:43:02.960 INFO running `"docker" "rm" "-f" "9aa140d8c0a3817a65d2483b833163248796c5b254387358f9b4f65d27706a68"`
Dec 12 11:43:03.212 INFO [stdout] 9aa140d8c0a3817a65d2483b833163248796c5b254387358f9b4f65d27706a68