Nov 30 18:20:44.356 INFO checking parallel-0.11.3 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 18:20:44.356 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-3/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 30 18:20:44.881 INFO [stdout] e514c1c5a3085b57b398fd154e7ca76e146fef51d004f88b10524128565fc667
Nov 30 18:20:44.886 INFO running `"docker" "start" "-a" "e514c1c5a3085b57b398fd154e7ca76e146fef51d004f88b10524128565fc667"`
Nov 30 18:20:46.716 INFO [stderr] usermod: no changes
Nov 30 18:20:46.817 INFO [stderr]     Checking smallvec v0.4.5
Nov 30 18:20:46.817 INFO [stderr]    Compiling sys-info v0.4.1
Nov 30 18:20:49.538 INFO [stderr]     Checking parallel v0.11.3 (/source)
Nov 30 18:20:50.524 INFO [stderr] warning: doc comment not used by rustdoc
Nov 30 18:20:50.524 INFO [stderr]    --> src/main.rs:242:9
Nov 30 18:20:50.524 INFO [stderr]     |
Nov 30 18:20:50.524 INFO [stderr] 242 |         /// Prints messages from executed commands in the correct order.
Nov 30 18:20:50.524 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 18:20:50.524 INFO [stderr]     |
Nov 30 18:20:50.524 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Nov 30 18:20:50.524 INFO [stderr] 
Nov 30 18:20:50.524 INFO [stderr] warning: doc comment not used by rustdoc
Nov 30 18:20:50.524 INFO [stderr]    --> src/main.rs:245:9
Nov 30 18:20:50.524 INFO [stderr]     |
Nov 30 18:20:50.524 INFO [stderr] 245 |         /// Wait for all threads to exit before proceeding.
Nov 30 18:20:50.524 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 18:20:50.524 INFO [stderr] 
Nov 30 18:20:50.676 INFO [stderr] warning: unnecessary parentheses around method argument
Nov 30 18:20:50.676 INFO [stderr]    --> src/input_iterator/iterator.rs:231:48
Nov 30 18:20:50.676 INFO [stderr]     |
Nov 30 18:20:50.676 INFO [stderr] 231 |         for (actual, expected) in iterator.zip((1..4096)) {
Nov 30 18:20:50.676 INFO [stderr]     |                                                ^^^^^^^^^ help: remove these parentheses
Nov 30 18:20:50.676 INFO [stderr]     |
Nov 30 18:20:50.676 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Nov 30 18:20:50.676 INFO [stderr] 
Nov 30 18:20:50.676 INFO [stderr] warning: doc comment not used by rustdoc
Nov 30 18:20:50.676 INFO [stderr]    --> src/main.rs:242:9
Nov 30 18:20:50.676 INFO [stderr]     |
Nov 30 18:20:50.676 INFO [stderr] 242 |         /// Prints messages from executed commands in the correct order.
Nov 30 18:20:50.676 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 18:20:50.676 INFO [stderr]     |
Nov 30 18:20:50.676 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Nov 30 18:20:50.676 INFO [stderr] 
Nov 30 18:20:50.676 INFO [stderr] warning: doc comment not used by rustdoc
Nov 30 18:20:50.677 INFO [stderr]    --> src/main.rs:245:9
Nov 30 18:20:50.677 INFO [stderr]     |
Nov 30 18:20:50.677 INFO [stderr] 245 |         /// Wait for all threads to exit before proceeding.
Nov 30 18:20:50.677 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 18:20:50.677 INFO [stderr] 
Nov 30 18:20:51.232 INFO [stderr] warning: variable does not need to be mutable
Nov 30 18:20:51.232 INFO [stderr]    --> src/arguments/mod.rs:553:9
Nov 30 18:20:51.232 INFO [stderr]     |
Nov 30 18:20:51.232 INFO [stderr] 553 |     let mut append_list = &mut Vec::new();
Nov 30 18:20:51.232 INFO [stderr]     |         ----^^^^^^^^^^^
Nov 30 18:20:51.232 INFO [stderr]     |         |
Nov 30 18:20:51.232 INFO [stderr]     |         help: remove this `mut`
Nov 30 18:20:51.232 INFO [stderr]     |
Nov 30 18:20:51.232 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 18:20:51.232 INFO [stderr] 
Nov 30 18:20:51.313 INFO [stderr] warning: variable does not need to be mutable
Nov 30 18:20:51.313 INFO [stderr]   --> src/execute/exec_commands.rs:36:13
Nov 30 18:20:51.313 INFO [stderr]    |
Nov 30 18:20:51.313 INFO [stderr] 36 |         let mut command_buffer = &mut String::with_capacity(64);
Nov 30 18:20:51.313 INFO [stderr]    |             ----^^^^^^^^^^^^^^
Nov 30 18:20:51.313 INFO [stderr]    |             |
Nov 30 18:20:51.313 INFO [stderr]    |             help: remove this `mut`
Nov 30 18:20:51.313 INFO [stderr] 
Nov 30 18:20:51.364 INFO [stderr] warning: variable does not need to be mutable
Nov 30 18:20:51.364 INFO [stderr]   --> src/execute/pipe.rs:41:17
Nov 30 18:20:51.364 INFO [stderr]    |
Nov 30 18:20:51.364 INFO [stderr] 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
Nov 30 18:20:51.364 INFO [stderr]    |                 ----^^^^^^
Nov 30 18:20:51.364 INFO [stderr]    |                 |
Nov 30 18:20:51.364 INFO [stderr]    |                 help: remove this `mut`
Nov 30 18:20:51.364 INFO [stderr] 
Nov 30 18:20:51.480 INFO [stderr] warning: variable does not need to be mutable
Nov 30 18:20:51.480 INFO [stderr]    --> src/arguments/mod.rs:553:9
Nov 30 18:20:51.480 INFO [stderr]     |
Nov 30 18:20:51.480 INFO [stderr] 553 |     let mut append_list = &mut Vec::new();
Nov 30 18:20:51.480 INFO [stderr]     |         ----^^^^^^^^^^^
Nov 30 18:20:51.480 INFO [stderr]     |         |
Nov 30 18:20:51.480 INFO [stderr]     |         help: remove this `mut`
Nov 30 18:20:51.480 INFO [stderr]     |
Nov 30 18:20:51.480 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 18:20:51.480 INFO [stderr] 
Nov 30 18:20:51.556 INFO [stderr] warning: variable does not need to be mutable
Nov 30 18:20:51.557 INFO [stderr]   --> src/execute/exec_commands.rs:36:13
Nov 30 18:20:51.557 INFO [stderr]    |
Nov 30 18:20:51.557 INFO [stderr] 36 |         let mut command_buffer = &mut String::with_capacity(64);
Nov 30 18:20:51.557 INFO [stderr]    |             ----^^^^^^^^^^^^^^
Nov 30 18:20:51.557 INFO [stderr]    |             |
Nov 30 18:20:51.557 INFO [stderr]    |             help: remove this `mut`
Nov 30 18:20:51.557 INFO [stderr] 
Nov 30 18:20:51.620 INFO [stderr] warning: variable does not need to be mutable
Nov 30 18:20:51.620 INFO [stderr]   --> src/execute/pipe.rs:41:17
Nov 30 18:20:51.620 INFO [stderr]    |
Nov 30 18:20:51.620 INFO [stderr] 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
Nov 30 18:20:51.620 INFO [stderr]    |                 ----^^^^^^
Nov 30 18:20:51.620 INFO [stderr]    |                 |
Nov 30 18:20:51.620 INFO [stderr]    |                 help: remove this `mut`
Nov 30 18:20:51.620 INFO [stderr] 
Nov 30 18:20:51.728 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.98s
Nov 30 18:20:51.780 INFO [stderr] su: No module specific data is present
Nov 30 18:20:52.300 INFO running `"docker" "inspect" "e514c1c5a3085b57b398fd154e7ca76e146fef51d004f88b10524128565fc667"`
Nov 30 18:20:52.649 INFO running `"docker" "rm" "-f" "e514c1c5a3085b57b398fd154e7ca76e146fef51d004f88b10524128565fc667"`
Nov 30 18:20:52.884 INFO [stdout] e514c1c5a3085b57b398fd154e7ca76e146fef51d004f88b10524128565fc667