Oct 13 11:07:19.336 INFO checking parallel-0.11.3 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 11:07:19.338 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-1/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/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 11:07:19.834 INFO blam! be190cfbc7707c85c1e446ef3eb69f525605271127d5118d96e0650c97cf0c7b
Oct 13 11:07:19.836 INFO running `"docker" "start" "-a" "be190cfbc7707c85c1e446ef3eb69f525605271127d5118d96e0650c97cf0c7b"`
Oct 13 11:07:21.060 INFO kablam! usermod: no changes
Oct 13 11:07:21.169 INFO kablam!    Compiling sys-info v0.4.1
Oct 13 11:07:23.338 INFO kablam!     Checking parallel v0.11.3 (/source)
Oct 13 11:07:24.384 INFO kablam! warning: doc comment not used by rustdoc
Oct 13 11:07:24.384 INFO kablam!    --> src/main.rs:242:9
Oct 13 11:07:24.384 INFO kablam!     |
Oct 13 11:07:24.384 INFO kablam! 242 |         /// Prints messages from executed commands in the correct order.
Oct 13 11:07:24.384 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 11:07:24.384 INFO kablam!     |
Oct 13 11:07:24.384 INFO kablam!     = note: #[warn(unused_doc_comments)] on by default
Oct 13 11:07:24.384 INFO kablam! 
Oct 13 11:07:24.384 INFO kablam! warning: doc comment not used by rustdoc
Oct 13 11:07:24.384 INFO kablam!    --> src/main.rs:245:9
Oct 13 11:07:24.384 INFO kablam!     |
Oct 13 11:07:24.384 INFO kablam! 245 |         /// Wait for all threads to exit before proceeding.
Oct 13 11:07:24.384 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 11:07:24.384 INFO kablam! 
Oct 13 11:07:24.588 INFO kablam! warning: unnecessary parentheses around method argument
Oct 13 11:07:24.597 INFO kablam!    --> src/input_iterator/iterator.rs:231:48
Oct 13 11:07:24.597 INFO kablam!     |
Oct 13 11:07:24.598 INFO kablam! 231 |         for (actual, expected) in iterator.zip((1..4096)) {
Oct 13 11:07:24.598 INFO kablam!     |                                                ^^^^^^^^^ help: remove these parentheses
Oct 13 11:07:24.598 INFO kablam!     |
Oct 13 11:07:24.598 INFO kablam!     = note: #[warn(unused_parens)] on by default
Oct 13 11:07:24.599 INFO kablam! 
Oct 13 11:07:24.599 INFO kablam! warning: doc comment not used by rustdoc
Oct 13 11:07:24.599 INFO kablam!    --> src/main.rs:242:9
Oct 13 11:07:24.599 INFO kablam!     |
Oct 13 11:07:24.600 INFO kablam! 242 |         /// Prints messages from executed commands in the correct order.
Oct 13 11:07:24.600 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 11:07:24.600 INFO kablam!     |
Oct 13 11:07:24.601 INFO kablam!     = note: #[warn(unused_doc_comments)] on by default
Oct 13 11:07:24.601 INFO kablam! 
Oct 13 11:07:24.601 INFO kablam! warning: doc comment not used by rustdoc
Oct 13 11:07:24.601 INFO kablam!    --> src/main.rs:245:9
Oct 13 11:07:24.601 INFO kablam!     |
Oct 13 11:07:24.602 INFO kablam! 245 |         /// Wait for all threads to exit before proceeding.
Oct 13 11:07:24.602 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 11:07:24.602 INFO kablam! 
Oct 13 11:07:25.433 INFO kablam! warning: variable does not need to be mutable
Oct 13 11:07:25.433 INFO kablam!    --> src/arguments/mod.rs:553:9
Oct 13 11:07:25.433 INFO kablam!     |
Oct 13 11:07:25.433 INFO kablam! 553 |     let mut append_list = &mut Vec::new();
Oct 13 11:07:25.433 INFO kablam!     |         ----^^^^^^^^^^^
Oct 13 11:07:25.433 INFO kablam!     |         |
Oct 13 11:07:25.433 INFO kablam!     |         help: remove this `mut`
Oct 13 11:07:25.434 INFO kablam!     |
Oct 13 11:07:25.434 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 11:07:25.434 INFO kablam! 
Oct 13 11:07:25.501 INFO kablam! warning: variable does not need to be mutable
Oct 13 11:07:25.501 INFO kablam!   --> src/execute/exec_commands.rs:36:13
Oct 13 11:07:25.501 INFO kablam!    |
Oct 13 11:07:25.501 INFO kablam! 36 |         let mut command_buffer = &mut String::with_capacity(64);
Oct 13 11:07:25.501 INFO kablam!    |             ----^^^^^^^^^^^^^^
Oct 13 11:07:25.501 INFO kablam!    |             |
Oct 13 11:07:25.501 INFO kablam!    |             help: remove this `mut`
Oct 13 11:07:25.501 INFO kablam! 
Oct 13 11:07:25.612 INFO kablam! warning: variable does not need to be mutable
Oct 13 11:07:25.612 INFO kablam!   --> src/execute/pipe.rs:41:17
Oct 13 11:07:25.612 INFO kablam!    |
Oct 13 11:07:25.612 INFO kablam! 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
Oct 13 11:07:25.612 INFO kablam!    |                 ----^^^^^^
Oct 13 11:07:25.612 INFO kablam!    |                 |
Oct 13 11:07:25.612 INFO kablam!    |                 help: remove this `mut`
Oct 13 11:07:25.612 INFO kablam! 
Oct 13 11:07:25.636 INFO kablam! warning: variable does not need to be mutable
Oct 13 11:07:25.636 INFO kablam!    --> src/arguments/mod.rs:553:9
Oct 13 11:07:25.636 INFO kablam!     |
Oct 13 11:07:25.636 INFO kablam! 553 |     let mut append_list = &mut Vec::new();
Oct 13 11:07:25.636 INFO kablam!     |         ----^^^^^^^^^^^
Oct 13 11:07:25.636 INFO kablam!     |         |
Oct 13 11:07:25.636 INFO kablam!     |         help: remove this `mut`
Oct 13 11:07:25.636 INFO kablam!     |
Oct 13 11:07:25.636 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 11:07:25.636 INFO kablam! 
Oct 13 11:07:25.720 INFO kablam! warning: variable does not need to be mutable
Oct 13 11:07:25.720 INFO kablam!   --> src/execute/exec_commands.rs:36:13
Oct 13 11:07:25.720 INFO kablam!    |
Oct 13 11:07:25.720 INFO kablam! 36 |         let mut command_buffer = &mut String::with_capacity(64);
Oct 13 11:07:25.720 INFO kablam!    |             ----^^^^^^^^^^^^^^
Oct 13 11:07:25.720 INFO kablam!    |             |
Oct 13 11:07:25.720 INFO kablam!    |             help: remove this `mut`
Oct 13 11:07:25.720 INFO kablam! 
Oct 13 11:07:25.776 INFO kablam! warning: variable does not need to be mutable
Oct 13 11:07:25.776 INFO kablam!   --> src/execute/pipe.rs:41:17
Oct 13 11:07:25.776 INFO kablam!    |
Oct 13 11:07:25.776 INFO kablam! 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
Oct 13 11:07:25.776 INFO kablam!    |                 ----^^^^^^
Oct 13 11:07:25.776 INFO kablam!    |                 |
Oct 13 11:07:25.776 INFO kablam!    |                 help: remove this `mut`
Oct 13 11:07:25.776 INFO kablam! 
Oct 13 11:07:25.985 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.90s
Oct 13 11:07:25.990 INFO kablam! su: No module specific data is present
Oct 13 11:07:26.746 INFO running `"docker" "rm" "-f" "be190cfbc7707c85c1e446ef3eb69f525605271127d5118d96e0650c97cf0c7b"`
Oct 13 11:07:26.996 INFO blam! be190cfbc7707c85c1e446ef3eb69f525605271127d5118d96e0650c97cf0c7b