Sep 01 14:15:17.688 INFO checking mmstick/parallel against try#952c7dbfa2628309f557b367929ffc17af20b332 for pr-53851
Sep 01 14:15:17.688 INFO running: cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets
Sep 01 14:15:17.689 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53851/try#952c7dbfa2628309f557b367929ffc17af20b332:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-1/try#952c7dbfa2628309f557b367929ffc17af20b332:/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=500" "-e" "CMD=cargo +952c7dbfa2628309f557b367929ffc17af20b332-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 14:15:17.849 INFO blam! d55a16185a2d9eaf6540633fdb74fa580aa4360961afc81f5170b461cb9ecbac
Sep 01 14:15:17.851 INFO running `"docker" "start" "-a" "d55a16185a2d9eaf6540633fdb74fa580aa4360961afc81f5170b461cb9ecbac"`
Sep 01 14:15:18.432 INFO kablam!     Checking permutate v0.3.2
Sep 01 14:15:18.432 INFO kablam!     Checking numtoa v0.0.7
Sep 01 14:15:18.432 INFO kablam!    Compiling sys-info v0.5.0
Sep 01 14:15:18.432 INFO kablam!     Checking wait-timeout v0.1.5
Sep 01 14:15:18.433 INFO kablam!     Checking time v0.1.37
Sep 01 14:15:18.433 INFO kablam!     Checking num_cpus v1.5.1
Sep 01 14:15:19.853 INFO kablam!     Checking parallel v0.11.3 (file:///source)
Sep 01 14:15:20.045 INFO kablam! warning: doc comment not used by rustdoc
Sep 01 14:15:20.046 INFO kablam!    --> src/main.rs:242:9
Sep 01 14:15:20.046 INFO kablam!     |
Sep 01 14:15:20.046 INFO kablam! 242 |         /// Prints messages from executed commands in the correct order.
Sep 01 14:15:20.046 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 14:15:20.046 INFO kablam!     |
Sep 01 14:15:20.046 INFO kablam!     = note: #[warn(unused_doc_comments)] on by default
Sep 01 14:15:20.046 INFO kablam! 
Sep 01 14:15:20.046 INFO kablam! warning: doc comment not used by rustdoc
Sep 01 14:15:20.046 INFO kablam!    --> src/main.rs:245:9
Sep 01 14:15:20.046 INFO kablam!     |
Sep 01 14:15:20.046 INFO kablam! 245 |         /// Wait for all threads to exit before proceeding.
Sep 01 14:15:20.046 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 14:15:20.046 INFO kablam! 
Sep 01 14:15:20.238 INFO kablam! warning: unnecessary parentheses around method argument
Sep 01 14:15:20.238 INFO kablam!    --> src/input_iterator/iterator.rs:231:48
Sep 01 14:15:20.238 INFO kablam!     |
Sep 01 14:15:20.239 INFO kablam! 231 |         for (actual, expected) in iterator.zip((1..4096)) {
Sep 01 14:15:20.239 INFO kablam!     |                                                ^^^^^^^^^ help: remove these parentheses
Sep 01 14:15:20.239 INFO kablam!     |
Sep 01 14:15:20.239 INFO kablam!     = note: #[warn(unused_parens)] on by default
Sep 01 14:15:20.239 INFO kablam! 
Sep 01 14:15:20.241 INFO kablam! warning: doc comment not used by rustdoc
Sep 01 14:15:20.241 INFO kablam!    --> src/main.rs:242:9
Sep 01 14:15:20.241 INFO kablam!     |
Sep 01 14:15:20.242 INFO kablam! 242 |         /// Prints messages from executed commands in the correct order.
Sep 01 14:15:20.242 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 14:15:20.242 INFO kablam!     |
Sep 01 14:15:20.242 INFO kablam!     = note: #[warn(unused_doc_comments)] on by default
Sep 01 14:15:20.242 INFO kablam! 
Sep 01 14:15:20.242 INFO kablam! warning: doc comment not used by rustdoc
Sep 01 14:15:20.242 INFO kablam!    --> src/main.rs:245:9
Sep 01 14:15:20.242 INFO kablam!     |
Sep 01 14:15:20.242 INFO kablam! 245 |         /// Wait for all threads to exit before proceeding.
Sep 01 14:15:20.242 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 14:15:20.242 INFO kablam! 
Sep 01 14:15:21.069 INFO kablam! warning: variable does not need to be mutable
Sep 01 14:15:21.069 INFO kablam!    --> src/arguments/mod.rs:553:9
Sep 01 14:15:21.069 INFO kablam!     |
Sep 01 14:15:21.069 INFO kablam! 553 |     let mut append_list = &mut Vec::new();
Sep 01 14:15:21.069 INFO kablam!     |         ----^^^^^^^^^^^
Sep 01 14:15:21.069 INFO kablam!     |         |
Sep 01 14:15:21.069 INFO kablam!     |         help: remove this `mut`
Sep 01 14:15:21.069 INFO kablam!     |
Sep 01 14:15:21.069 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 01 14:15:21.069 INFO kablam! 
Sep 01 14:15:21.151 INFO kablam! warning: variable does not need to be mutable
Sep 01 14:15:21.151 INFO kablam!   --> src/execute/exec_commands.rs:36:13
Sep 01 14:15:21.151 INFO kablam!    |
Sep 01 14:15:21.151 INFO kablam! 36 |         let mut command_buffer = &mut String::with_capacity(64);
Sep 01 14:15:21.151 INFO kablam!    |             ----^^^^^^^^^^^^^^
Sep 01 14:15:21.151 INFO kablam!    |             |
Sep 01 14:15:21.151 INFO kablam!    |             help: remove this `mut`
Sep 01 14:15:21.151 INFO kablam! 
Sep 01 14:15:21.229 INFO kablam! warning: variable does not need to be mutable
Sep 01 14:15:21.229 INFO kablam!   --> src/execute/pipe.rs:41:17
Sep 01 14:15:21.229 INFO kablam!    |
Sep 01 14:15:21.229 INFO kablam! 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
Sep 01 14:15:21.229 INFO kablam!    |                 ----^^^^^^
Sep 01 14:15:21.229 INFO kablam!    |                 |
Sep 01 14:15:21.229 INFO kablam!    |                 help: remove this `mut`
Sep 01 14:15:21.229 INFO kablam! 
Sep 01 14:15:21.453 INFO kablam! warning: variable does not need to be mutable
Sep 01 14:15:21.453 INFO kablam!    --> src/arguments/mod.rs:553:9
Sep 01 14:15:21.453 INFO kablam!     |
Sep 01 14:15:21.453 INFO kablam! 553 |     let mut append_list = &mut Vec::new();
Sep 01 14:15:21.453 INFO kablam!     |         ----^^^^^^^^^^^
Sep 01 14:15:21.453 INFO kablam!     |         |
Sep 01 14:15:21.453 INFO kablam!     |         help: remove this `mut`
Sep 01 14:15:21.453 INFO kablam!     |
Sep 01 14:15:21.453 INFO kablam!     = note: #[warn(unused_mut)] on by default
Sep 01 14:15:21.453 INFO kablam! 
Sep 01 14:15:21.559 INFO kablam! warning: variable does not need to be mutable
Sep 01 14:15:21.559 INFO kablam!   --> src/execute/exec_commands.rs:36:13
Sep 01 14:15:21.559 INFO kablam!    |
Sep 01 14:15:21.559 INFO kablam! 36 |         let mut command_buffer = &mut String::with_capacity(64);
Sep 01 14:15:21.559 INFO kablam!    |             ----^^^^^^^^^^^^^^
Sep 01 14:15:21.560 INFO kablam!    |             |
Sep 01 14:15:21.560 INFO kablam!    |             help: remove this `mut`
Sep 01 14:15:21.560 INFO kablam! 
Sep 01 14:15:21.636 INFO kablam! warning: variable does not need to be mutable
Sep 01 14:15:21.636 INFO kablam!   --> src/execute/pipe.rs:41:17
Sep 01 14:15:21.636 INFO kablam!    |
Sep 01 14:15:21.636 INFO kablam! 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
Sep 01 14:15:21.636 INFO kablam!    |                 ----^^^^^^
Sep 01 14:15:21.636 INFO kablam!    |                 |
Sep 01 14:15:21.636 INFO kablam!    |                 help: remove this `mut`
Sep 01 14:15:21.636 INFO kablam! 
Sep 01 14:15:21.784 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.38s
Sep 01 14:15:21.789 INFO kablam! su: No module specific data is present
Sep 01 14:15:22.137 INFO running `"docker" "rm" "-f" "d55a16185a2d9eaf6540633fdb74fa580aa4360961afc81f5170b461cb9ecbac"`
Sep 01 14:15:22.246 INFO blam! d55a16185a2d9eaf6540633fdb74fa580aa4360961afc81f5170b461cb9ecbac