Sep 14 03:38:38.403 INFO checking mmstick/parallel against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 03:38:38.403 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 03:38:38.403 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-3/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 03:38:38.804 INFO blam! a121cf5af60c4bf69c006925e13d94d39bf02414b64524a812c53c61ab7fa418
Sep 14 03:38:38.805 INFO running `"docker" "start" "-a" "a121cf5af60c4bf69c006925e13d94d39bf02414b64524a812c53c61ab7fa418"`
Sep 14 03:38:40.151 INFO kablam! usermod: no changes
Sep 14 03:38:40.222 INFO kablam!     Checking numtoa v0.0.7
Sep 14 03:38:40.223 INFO kablam!     Checking itoa v0.3.1
Sep 14 03:38:40.224 INFO kablam!     Checking permutate v0.3.2
Sep 14 03:38:40.224 INFO kablam!    Compiling sys-info v0.5.0
Sep 14 03:38:40.224 INFO kablam!     Checking arrayvec v0.4.6
Sep 14 03:38:40.225 INFO kablam!     Checking wait-timeout v0.1.5
Sep 14 03:38:40.225 INFO kablam!     Checking num_cpus v1.5.1
Sep 14 03:38:40.225 INFO kablam!     Checking time v0.1.37
Sep 14 03:38:42.786 INFO kablam!     Checking parallel v0.11.3 (file:///source)
Sep 14 03:38:43.119 INFO kablam! warning: unnecessary parentheses around method argument
Sep 14 03:38:43.119 INFO kablam!    --> src/input_iterator/iterator.rs:231:48
Sep 14 03:38:43.119 INFO kablam!     |
Sep 14 03:38:43.119 INFO kablam! 231 |         for (actual, expected) in iterator.zip((1..4096)) {
Sep 14 03:38:43.119 INFO kablam!     |                                                ^^^^^^^^^ help: remove these parentheses
Sep 14 03:38:43.119 INFO kablam!     |
Sep 14 03:38:43.119 INFO kablam!     = note: #[warn(unused_parens)] on by default
Sep 14 03:38:43.119 INFO kablam! 
Sep 14 03:38:43.121 INFO kablam! warning: doc comment not used by rustdoc
Sep 14 03:38:43.121 INFO kablam!    --> src/main.rs:242:9
Sep 14 03:38:43.121 INFO kablam!     |
Sep 14 03:38:43.121 INFO kablam! 242 |         /// Prints messages from executed commands in the correct order.
Sep 14 03:38:43.121 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 03:38:43.131 INFO kablam!     |
Sep 14 03:38:43.131 INFO kablam!     = note: #[warn(unused_doc_comments)] on by default
Sep 14 03:38:43.131 INFO kablam! 
Sep 14 03:38:43.131 INFO kablam! warning: doc comment not used by rustdoc
Sep 14 03:38:43.131 INFO kablam!    --> src/main.rs:245:9
Sep 14 03:38:43.131 INFO kablam!     |
Sep 14 03:38:43.131 INFO kablam! 245 |         /// Wait for all threads to exit before proceeding.
Sep 14 03:38:43.131 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 03:38:43.131 INFO kablam! 
Sep 14 03:38:43.175 INFO kablam! warning: doc comment not used by rustdoc
Sep 14 03:38:43.175 INFO kablam!    --> src/main.rs:242:9
Sep 14 03:38:43.175 INFO kablam!     |
Sep 14 03:38:43.175 INFO kablam! 242 |         /// Prints messages from executed commands in the correct order.
Sep 14 03:38:43.175 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 03:38:43.175 INFO kablam!     |
Sep 14 03:38:43.175 INFO kablam!     = note: #[warn(unused_doc_comments)] on by default
Sep 14 03:38:43.175 INFO kablam! 
Sep 14 03:38:43.175 INFO kablam! warning: doc comment not used by rustdoc
Sep 14 03:38:43.175 INFO kablam!    --> src/main.rs:245:9
Sep 14 03:38:43.175 INFO kablam!     |
Sep 14 03:38:43.175 INFO kablam! 245 |         /// Wait for all threads to exit before proceeding.
Sep 14 03:38:43.175 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 03:38:43.175 INFO kablam! 
Sep 14 03:38:44.289 INFO kablam! warning: variable does not need to be mutable
Sep 14 03:38:44.289 INFO kablam!    --> src/arguments/mod.rs:553:9
Sep 14 03:38:44.289 INFO kablam!     |
Sep 14 03:38:44.289 INFO kablam! 553 |     let mut append_list = &mut Vec::new();
Sep 14 03:38:44.289 INFO kablam!     |         ----^^^^^^^^^^^
Sep 14 03:38:44.289 INFO kablam!     |         |
Sep 14 03:38:44.289 INFO kablam!     |         help: remove this `mut`
Sep 14 03:38:44.289 INFO kablam!     |
Sep 14 03:38:44.289 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 14 03:38:44.289 INFO kablam! 
Sep 14 03:38:44.392 INFO kablam! warning: variable does not need to be mutable
Sep 14 03:38:44.392 INFO kablam!   --> src/execute/exec_commands.rs:36:13
Sep 14 03:38:44.392 INFO kablam!    |
Sep 14 03:38:44.392 INFO kablam! 36 |         let mut command_buffer = &mut String::with_capacity(64);
Sep 14 03:38:44.392 INFO kablam!    |             ----^^^^^^^^^^^^^^
Sep 14 03:38:44.392 INFO kablam!    |             |
Sep 14 03:38:44.392 INFO kablam!    |             help: remove this `mut`
Sep 14 03:38:44.392 INFO kablam! 
Sep 14 03:38:44.487 INFO kablam! warning: variable does not need to be mutable
Sep 14 03:38:44.487 INFO kablam!   --> src/execute/pipe.rs:41:17
Sep 14 03:38:44.487 INFO kablam!    |
Sep 14 03:38:44.487 INFO kablam! 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
Sep 14 03:38:44.487 INFO kablam!    |                 ----^^^^^^
Sep 14 03:38:44.487 INFO kablam!    |                 |
Sep 14 03:38:44.487 INFO kablam!    |                 help: remove this `mut`
Sep 14 03:38:44.487 INFO kablam! 
Sep 14 03:38:44.821 INFO kablam! warning: variable does not need to be mutable
Sep 14 03:38:44.821 INFO kablam!    --> src/arguments/mod.rs:553:9
Sep 14 03:38:44.821 INFO kablam!     |
Sep 14 03:38:44.821 INFO kablam! 553 |     let mut append_list = &mut Vec::new();
Sep 14 03:38:44.821 INFO kablam!     |         ----^^^^^^^^^^^
Sep 14 03:38:44.821 INFO kablam!     |         |
Sep 14 03:38:44.821 INFO kablam!     |         help: remove this `mut`
Sep 14 03:38:44.822 INFO kablam!     |
Sep 14 03:38:44.822 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 14 03:38:44.823 INFO kablam! 
Sep 14 03:38:44.958 INFO kablam! warning: variable does not need to be mutable
Sep 14 03:38:44.958 INFO kablam!   --> src/execute/exec_commands.rs:36:13
Sep 14 03:38:44.958 INFO kablam!    |
Sep 14 03:38:44.958 INFO kablam! 36 |         let mut command_buffer = &mut String::with_capacity(64);
Sep 14 03:38:44.958 INFO kablam!    |             ----^^^^^^^^^^^^^^
Sep 14 03:38:44.958 INFO kablam!    |             |
Sep 14 03:38:44.958 INFO kablam!    |             help: remove this `mut`
Sep 14 03:38:44.967 INFO kablam! 
Sep 14 03:38:45.042 INFO kablam! warning: variable does not need to be mutable
Sep 14 03:38:45.042 INFO kablam!   --> src/execute/pipe.rs:41:17
Sep 14 03:38:45.042 INFO kablam!    |
Sep 14 03:38:45.042 INFO kablam! 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
Sep 14 03:38:45.042 INFO kablam!    |                 ----^^^^^^
Sep 14 03:38:45.042 INFO kablam!    |                 |
Sep 14 03:38:45.042 INFO kablam!    |                 help: remove this `mut`
Sep 14 03:38:45.042 INFO kablam! 
Sep 14 03:38:45.160 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.97s
Sep 14 03:38:45.165 INFO kablam! su: No module specific data is present
Sep 14 03:38:46.373 INFO running `"docker" "rm" "-f" "a121cf5af60c4bf69c006925e13d94d39bf02414b64524a812c53c61ab7fa418"`
Sep 14 03:38:46.651 INFO blam! a121cf5af60c4bf69c006925e13d94d39bf02414b64524a812c53c61ab7fa418