Oct 13 12:18:36.548 INFO checking mai-0.1.0 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 12:18:36.548 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-0/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 12:18:36.771 INFO blam! 03e5a2a44fa673fef61c67de62d2e25f5b2890f5bdd46fdbb38c0bf89cc8a69b
Oct 13 12:18:36.773 INFO running `"docker" "start" "-a" "03e5a2a44fa673fef61c67de62d2e25f5b2890f5bdd46fdbb38c0bf89cc8a69b"`
Oct 13 12:18:37.347 INFO kablam! usermod: no changes
Oct 13 12:18:37.441 INFO kablam!     Checking lifeguard v0.5.2
Oct 13 12:18:38.096 INFO kablam!     Checking mai v0.1.0 (/source)
Oct 13 12:18:40.632 INFO kablam! warning: unused import: `Evented`
Oct 13 12:18:40.633 INFO kablam!  --> src/protocol_engine.rs:1:11
Oct 13 12:18:40.633 INFO kablam!   |
Oct 13 12:18:40.633 INFO kablam! 1 | use mio::{Evented, EventSet, PollOpt, Token};
Oct 13 12:18:40.634 INFO kablam!   |           ^^^^^^^
Oct 13 12:18:40.634 INFO kablam!   |
Oct 13 12:18:40.634 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 12:18:40.634 INFO kablam! 
Oct 13 12:18:40.635 INFO kablam! warning: unused import: `Recycleable`
Oct 13 12:18:40.635 INFO kablam!  --> src/protocol_engine.rs:5:23
Oct 13 12:18:40.635 INFO kablam!   |
Oct 13 12:18:40.635 INFO kablam! 5 | use lifeguard::{self, Recycleable, Pool, StartingSize, MaxSize, Supplier};
Oct 13 12:18:40.636 INFO kablam!   |                       ^^^^^^^^^^^
Oct 13 12:18:40.636 INFO kablam! 
Oct 13 12:18:40.636 INFO kablam! warning: unused import: `Read`
Oct 13 12:18:40.637 INFO kablam!  --> src/protocol_engine.rs:8:21
Oct 13 12:18:40.637 INFO kablam!   |
Oct 13 12:18:40.637 INFO kablam! 8 | use std::io::{self, Read, Write};
Oct 13 12:18:40.637 INFO kablam!   |                     ^^^^
Oct 13 12:18:40.637 INFO kablam! 
Oct 13 12:18:40.638 INFO kablam! warning: unused import: `Write`
Oct 13 12:18:40.638 INFO kablam!  --> src/protocol_engine.rs:8:27
Oct 13 12:18:40.638 INFO kablam!   |
Oct 13 12:18:40.638 INFO kablam! 8 | use std::io::{self, Read, Write};
Oct 13 12:18:40.639 INFO kablam!   |                           ^^^^^
Oct 13 12:18:40.639 INFO kablam! 
Oct 13 12:18:40.700 INFO kablam! warning: variable does not need to be mutable
Oct 13 12:18:40.700 INFO kablam!    --> src/evented_frame_stream.rs:215:9
Oct 13 12:18:40.700 INFO kablam!     |
Oct 13 12:18:40.700 INFO kablam! 215 |     let mut outbox = self.outbox(outbox_pool);
Oct 13 12:18:40.700 INFO kablam!     |         ----^^^^^^
Oct 13 12:18:40.700 INFO kablam!     |         |
Oct 13 12:18:40.700 INFO kablam!     |         help: remove this `mut`
Oct 13 12:18:40.700 INFO kablam!     |
Oct 13 12:18:40.700 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 12:18:40.700 INFO kablam! 
Oct 13 12:18:40.712 INFO kablam! warning: variable does not need to be mutable
Oct 13 12:18:40.712 INFO kablam!    --> src/protocol_engine.rs:131:12
Oct 13 12:18:40.712 INFO kablam!     |
Oct 13 12:18:40.712 INFO kablam! 131 |        let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
Oct 13 12:18:40.712 INFO kablam!     |            ----^^^^^^^^^^^^^^
Oct 13 12:18:40.712 INFO kablam!     |            |
Oct 13 12:18:40.712 INFO kablam!     |            help: remove this `mut`
Oct 13 12:18:40.712 INFO kablam! 
Oct 13 12:18:40.712 INFO kablam! warning: variable does not need to be mutable
Oct 13 12:18:40.712 INFO kablam!    --> src/protocol_engine.rs:133:22
Oct 13 12:18:40.712 INFO kablam!     |
Oct 13 12:18:40.712 INFO kablam! 133 |        let (mut efs, mut session) = stream_session.components();
Oct 13 12:18:40.712 INFO kablam!     |                      ----^^^^^^^
Oct 13 12:18:40.712 INFO kablam!     |                      |
Oct 13 12:18:40.712 INFO kablam!     |                      help: remove this `mut`
Oct 13 12:18:40.712 INFO kablam! 
Oct 13 12:18:40.712 INFO kablam! warning: variable does not need to be mutable
Oct 13 12:18:40.712 INFO kablam!    --> src/protocol_engine.rs:133:13
Oct 13 12:18:40.712 INFO kablam!     |
Oct 13 12:18:40.712 INFO kablam! 133 |        let (mut efs, mut session) = stream_session.components();
Oct 13 12:18:40.712 INFO kablam!     |             ----^^^
Oct 13 12:18:40.712 INFO kablam!     |             |
Oct 13 12:18:40.712 INFO kablam!     |             help: remove this `mut`
Oct 13 12:18:40.712 INFO kablam! 
Oct 13 12:18:40.745 INFO kablam! warning: unused import: `Evented`
Oct 13 12:18:40.745 INFO kablam!  --> src/protocol_engine.rs:1:11
Oct 13 12:18:40.745 INFO kablam!   |
Oct 13 12:18:40.746 INFO kablam! 1 | use mio::{Evented, EventSet, PollOpt, Token};
Oct 13 12:18:40.746 INFO kablam!   |           ^^^^^^^
Oct 13 12:18:40.746 INFO kablam!   |
Oct 13 12:18:40.746 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 12:18:40.747 INFO kablam! 
Oct 13 12:18:40.747 INFO kablam! warning: unused import: `Recycleable`
Oct 13 12:18:40.747 INFO kablam!  --> src/protocol_engine.rs:5:23
Oct 13 12:18:40.747 INFO kablam!   |
Oct 13 12:18:40.748 INFO kablam! 5 | use lifeguard::{self, Recycleable, Pool, StartingSize, MaxSize, Supplier};
Oct 13 12:18:40.748 INFO kablam!   |                       ^^^^^^^^^^^
Oct 13 12:18:40.748 INFO kablam! 
Oct 13 12:18:40.749 INFO kablam! warning: unused import: `Read`
Oct 13 12:18:40.749 INFO kablam!  --> src/protocol_engine.rs:8:21
Oct 13 12:18:40.749 INFO kablam!   |
Oct 13 12:18:40.749 INFO kablam! 8 | use std::io::{self, Read, Write};
Oct 13 12:18:40.750 INFO kablam!   |                     ^^^^
Oct 13 12:18:40.750 INFO kablam! 
Oct 13 12:18:40.750 INFO kablam! warning: unused import: `Write`
Oct 13 12:18:40.750 INFO kablam!  --> src/protocol_engine.rs:8:27
Oct 13 12:18:40.751 INFO kablam!   |
Oct 13 12:18:40.751 INFO kablam! 8 | use std::io::{self, Read, Write};
Oct 13 12:18:40.751 INFO kablam!   |                           ^^^^^
Oct 13 12:18:40.751 INFO kablam! 
Oct 13 12:18:40.755 INFO kablam! warning: variable does not need to be mutable
Oct 13 12:18:40.755 INFO kablam!    --> src/protocol_engine.rs:531:26
Oct 13 12:18:40.755 INFO kablam!     |
Oct 13 12:18:40.755 INFO kablam! 531 |     let (codec, _stream, mut write_buffer, outbox) = efs.writing_toolset(buffer_pool, outbox_pool);
Oct 13 12:18:40.755 INFO kablam!     |                          ----^^^^^^^^^^^^
Oct 13 12:18:40.755 INFO kablam!     |                          |
Oct 13 12:18:40.755 INFO kablam!     |                          help: remove this `mut`
Oct 13 12:18:40.755 INFO kablam! 
Oct 13 12:18:40.816 INFO kablam! warning: variable does not need to be mutable
Oct 13 12:18:40.816 INFO kablam!    --> src/evented_frame_stream.rs:215:9
Oct 13 12:18:40.816 INFO kablam!     |
Oct 13 12:18:40.816 INFO kablam! 215 |     let mut outbox = self.outbox(outbox_pool);
Oct 13 12:18:40.816 INFO kablam!     |         ----^^^^^^
Oct 13 12:18:40.816 INFO kablam!     |         |
Oct 13 12:18:40.816 INFO kablam!     |         help: remove this `mut`
Oct 13 12:18:40.816 INFO kablam!     |
Oct 13 12:18:40.816 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 12:18:40.816 INFO kablam! 
Oct 13 12:18:40.832 INFO kablam! warning: variable does not need to be mutable
Oct 13 12:18:40.833 INFO kablam!    --> src/protocol_engine.rs:131:12
Oct 13 12:18:40.833 INFO kablam!     |
Oct 13 12:18:40.833 INFO kablam! 131 |        let mut stream_session: &mut StreamSession<P> = stream_session.unwrap();
Oct 13 12:18:40.833 INFO kablam!     |            ----^^^^^^^^^^^^^^
Oct 13 12:18:40.833 INFO kablam!     |            |
Oct 13 12:18:40.834 INFO kablam!     |            help: remove this `mut`
Oct 13 12:18:40.834 INFO kablam! 
Oct 13 12:18:40.834 INFO kablam! warning: variable does not need to be mutable
Oct 13 12:18:40.839 INFO kablam!    --> src/protocol_engine.rs:133:22
Oct 13 12:18:40.839 INFO kablam!     |
Oct 13 12:18:40.839 INFO kablam! 133 |        let (mut efs, mut session) = stream_session.components();
Oct 13 12:18:40.839 INFO kablam!     |                      ----^^^^^^^
Oct 13 12:18:40.839 INFO kablam!     |                      |
Oct 13 12:18:40.840 INFO kablam!     |                      help: remove this `mut`
Oct 13 12:18:40.840 INFO kablam! 
Oct 13 12:18:40.840 INFO kablam! warning: variable does not need to be mutable
Oct 13 12:18:40.840 INFO kablam!    --> src/protocol_engine.rs:133:13
Oct 13 12:18:40.840 INFO kablam!     |
Oct 13 12:18:40.841 INFO kablam! 133 |        let (mut efs, mut session) = stream_session.components();
Oct 13 12:18:40.841 INFO kablam!     |             ----^^^
Oct 13 12:18:40.841 INFO kablam!     |             |
Oct 13 12:18:40.841 INFO kablam!     |             help: remove this `mut`
Oct 13 12:18:40.841 INFO kablam! 
Oct 13 12:18:40.912 INFO kablam! warning: variable does not need to be mutable
Oct 13 12:18:40.913 INFO kablam!    --> src/protocol_engine.rs:531:26
Oct 13 12:18:40.913 INFO kablam!     |
Oct 13 12:18:40.913 INFO kablam! 531 |     let (codec, _stream, mut write_buffer, outbox) = efs.writing_toolset(buffer_pool, outbox_pool);
Oct 13 12:18:40.913 INFO kablam!     |                          ----^^^^^^^^^^^^
Oct 13 12:18:40.913 INFO kablam!     |                          |
Oct 13 12:18:40.913 INFO kablam!     |                          help: remove this `mut`
Oct 13 12:18:40.913 INFO kablam! 
Oct 13 12:18:42.522 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.15s
Oct 13 12:18:42.526 INFO kablam! su: No module specific data is present
Oct 13 12:18:42.801 INFO running `"docker" "rm" "-f" "03e5a2a44fa673fef61c67de62d2e25f5b2890f5bdd46fdbb38c0bf89cc8a69b"`
Oct 13 12:18:43.071 INFO blam! 03e5a2a44fa673fef61c67de62d2e25f5b2890f5bdd46fdbb38c0bf89cc8a69b