Nov 01 18:51:06.019 INFO checking parallel-0.11.3 against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 18:51:06.019 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-7/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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"`
Nov 01 18:51:06.374 INFO blam! 8c013c3a47f5ddc8af8afb98a0e992f7d3c96030141581961205969f32e54f07
Nov 01 18:51:06.376 INFO running `"docker" "start" "-a" "8c013c3a47f5ddc8af8afb98a0e992f7d3c96030141581961205969f32e54f07"`
Nov 01 18:51:08.140 INFO kablam! usermod: no changes
Nov 01 18:51:08.260 INFO kablam!     Checking permutate v0.3.2
Nov 01 18:51:08.260 INFO kablam!     Checking numtoa v0.0.7
Nov 01 18:51:08.260 INFO kablam!    Compiling sys-info v0.4.1
Nov 01 18:51:10.764 INFO kablam!     Checking parallel v0.11.3 (/source)
Nov 01 18:51:11.696 INFO kablam! warning: doc comment not used by rustdoc
Nov 01 18:51:11.696 INFO kablam!    --> src/main.rs:242:9
Nov 01 18:51:11.696 INFO kablam!     |
Nov 01 18:51:11.696 INFO kablam! 242 |         /// Prints messages from executed commands in the correct order.
Nov 01 18:51:11.696 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 18:51:11.696 INFO kablam!     |
Nov 01 18:51:11.696 INFO kablam!     = note: #[warn(unused_doc_comments)] on by default
Nov 01 18:51:11.696 INFO kablam! 
Nov 01 18:51:11.696 INFO kablam! warning: doc comment not used by rustdoc
Nov 01 18:51:11.696 INFO kablam!    --> src/main.rs:245:9
Nov 01 18:51:11.696 INFO kablam!     |
Nov 01 18:51:11.696 INFO kablam! 245 |         /// Wait for all threads to exit before proceeding.
Nov 01 18:51:11.696 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 18:51:11.696 INFO kablam! 
Nov 01 18:51:11.844 INFO kablam! warning: unnecessary parentheses around method argument
Nov 01 18:51:11.845 INFO kablam!    --> src/input_iterator/iterator.rs:231:48
Nov 01 18:51:11.845 INFO kablam!     |
Nov 01 18:51:11.845 INFO kablam! 231 |         for (actual, expected) in iterator.zip((1..4096)) {
Nov 01 18:51:11.845 INFO kablam!     |                                                ^^^^^^^^^ help: remove these parentheses
Nov 01 18:51:11.845 INFO kablam!     |
Nov 01 18:51:11.845 INFO kablam!     = note: #[warn(unused_parens)] on by default
Nov 01 18:51:11.845 INFO kablam! 
Nov 01 18:51:11.845 INFO kablam! warning: doc comment not used by rustdoc
Nov 01 18:51:11.845 INFO kablam!    --> src/main.rs:242:9
Nov 01 18:51:11.845 INFO kablam!     |
Nov 01 18:51:11.845 INFO kablam! 242 |         /// Prints messages from executed commands in the correct order.
Nov 01 18:51:11.845 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 18:51:11.845 INFO kablam!     |
Nov 01 18:51:11.845 INFO kablam!     = note: #[warn(unused_doc_comments)] on by default
Nov 01 18:51:11.845 INFO kablam! 
Nov 01 18:51:11.845 INFO kablam! warning: doc comment not used by rustdoc
Nov 01 18:51:11.845 INFO kablam!    --> src/main.rs:245:9
Nov 01 18:51:11.846 INFO kablam!     |
Nov 01 18:51:11.846 INFO kablam! 245 |         /// Wait for all threads to exit before proceeding.
Nov 01 18:51:11.846 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 18:51:11.846 INFO kablam! 
Nov 01 18:51:12.444 INFO kablam! warning: variable does not need to be mutable
Nov 01 18:51:12.444 INFO kablam!    --> src/arguments/mod.rs:553:9
Nov 01 18:51:12.444 INFO kablam!     |
Nov 01 18:51:12.444 INFO kablam! 553 |     let mut append_list = &mut Vec::new();
Nov 01 18:51:12.444 INFO kablam!     |         ----^^^^^^^^^^^
Nov 01 18:51:12.444 INFO kablam!     |         |
Nov 01 18:51:12.444 INFO kablam!     |         help: remove this `mut`
Nov 01 18:51:12.444 INFO kablam!     |
Nov 01 18:51:12.444 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 01 18:51:12.444 INFO kablam! 
Nov 01 18:51:12.505 INFO kablam! warning: variable does not need to be mutable
Nov 01 18:51:12.505 INFO kablam!   --> src/execute/exec_commands.rs:36:13
Nov 01 18:51:12.505 INFO kablam!    |
Nov 01 18:51:12.505 INFO kablam! 36 |         let mut command_buffer = &mut String::with_capacity(64);
Nov 01 18:51:12.505 INFO kablam!    |             ----^^^^^^^^^^^^^^
Nov 01 18:51:12.506 INFO kablam!    |             |
Nov 01 18:51:12.506 INFO kablam!    |             help: remove this `mut`
Nov 01 18:51:12.506 INFO kablam! 
Nov 01 18:51:12.613 INFO kablam! warning: variable does not need to be mutable
Nov 01 18:51:12.613 INFO kablam!   --> src/execute/pipe.rs:41:17
Nov 01 18:51:12.613 INFO kablam!    |
Nov 01 18:51:12.614 INFO kablam! 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
Nov 01 18:51:12.614 INFO kablam!    |                 ----^^^^^^
Nov 01 18:51:12.614 INFO kablam!    |                 |
Nov 01 18:51:12.614 INFO kablam!    |                 help: remove this `mut`
Nov 01 18:51:12.615 INFO kablam! 
Nov 01 18:51:12.713 INFO kablam! warning: variable does not need to be mutable
Nov 01 18:51:12.713 INFO kablam!    --> src/arguments/mod.rs:553:9
Nov 01 18:51:12.713 INFO kablam!     |
Nov 01 18:51:12.714 INFO kablam! 553 |     let mut append_list = &mut Vec::new();
Nov 01 18:51:12.714 INFO kablam!     |         ----^^^^^^^^^^^
Nov 01 18:51:12.714 INFO kablam!     |         |
Nov 01 18:51:12.714 INFO kablam!     |         help: remove this `mut`
Nov 01 18:51:12.715 INFO kablam!     |
Nov 01 18:51:12.715 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 01 18:51:12.715 INFO kablam! 
Nov 01 18:51:12.800 INFO kablam! warning: variable does not need to be mutable
Nov 01 18:51:12.800 INFO kablam!   --> src/execute/exec_commands.rs:36:13
Nov 01 18:51:12.800 INFO kablam!    |
Nov 01 18:51:12.800 INFO kablam! 36 |         let mut command_buffer = &mut String::with_capacity(64);
Nov 01 18:51:12.800 INFO kablam!    |             ----^^^^^^^^^^^^^^
Nov 01 18:51:12.800 INFO kablam!    |             |
Nov 01 18:51:12.800 INFO kablam!    |             help: remove this `mut`
Nov 01 18:51:12.800 INFO kablam! 
Nov 01 18:51:12.864 INFO kablam! warning: variable does not need to be mutable
Nov 01 18:51:12.864 INFO kablam!   --> src/execute/pipe.rs:41:17
Nov 01 18:51:12.864 INFO kablam!    |
Nov 01 18:51:12.864 INFO kablam! 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
Nov 01 18:51:12.864 INFO kablam!    |                 ----^^^^^^
Nov 01 18:51:12.864 INFO kablam!    |                 |
Nov 01 18:51:12.864 INFO kablam!    |                 help: remove this `mut`
Nov 01 18:51:12.864 INFO kablam! 
Nov 01 18:51:13.020 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.83s
Nov 01 18:51:13.020 INFO kablam! su: No module specific data is present
Nov 01 18:51:13.494 INFO running `"docker" "rm" "-f" "8c013c3a47f5ddc8af8afb98a0e992f7d3c96030141581961205969f32e54f07"`
Nov 01 18:51:13.677 INFO blam! 8c013c3a47f5ddc8af8afb98a0e992f7d3c96030141581961205969f32e54f07