Dec 05 08:38:43.885 INFO checking quickercheck-0.2.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 08:38:43.885 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 05 08:38:44.314 INFO [stdout] 6423bfa6833f653daf75bbde695101a9f3cf14a93c18cdcda4029ef699c0ac65
Dec 05 08:38:44.319 INFO running `"docker" "start" "-a" "6423bfa6833f653daf75bbde695101a9f3cf14a93c18cdcda4029ef699c0ac65"`
Dec 05 08:38:45.267 INFO [stderr] usermod: no changes
Dec 05 08:38:45.389 INFO [stderr]     Checking quickercheck v0.2.0 (/source)
Dec 05 08:38:47.443 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 05 08:38:47.443 INFO [stderr]    --> src/arbitrary.rs:108:48
Dec 05 08:38:47.443 INFO [stderr]     |
Dec 05 08:38:47.443 INFO [stderr] 108 |                       FromIteratorGenerator::new(($($placeholder::arbitrary()),*))
Dec 05 08:38:47.443 INFO [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 05 08:38:47.443 INFO [stderr] ...
Dec 05 08:38:47.443 INFO [stderr] 119 | / generic_impls! {
Dec 05 08:38:47.443 INFO [stderr] 120 | |     Vec<T>,
Dec 05 08:38:47.443 INFO [stderr] 121 | |     BTreeMap<K, V>,
Dec 05 08:38:47.443 INFO [stderr] 122 | |     BTreeSet<T>,
Dec 05 08:38:47.443 INFO [stderr] ...   |
Dec 05 08:38:47.443 INFO [stderr] 127 | |     VecDeque<T>
Dec 05 08:38:47.443 INFO [stderr] 128 | | }
Dec 05 08:38:47.443 INFO [stderr]     | |_- in this macro invocation
Dec 05 08:38:47.443 INFO [stderr]     |
Dec 05 08:38:47.443 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 05 08:38:47.443 INFO [stderr] 
Dec 05 08:38:47.443 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 05 08:38:47.443 INFO [stderr]    --> src/arbitrary.rs:112:47
Dec 05 08:38:47.443 INFO [stderr]     |
Dec 05 08:38:47.443 INFO [stderr] 112 |                       FromIteratorShrinker::new(($($placeholder::shrink()),*))
Dec 05 08:38:47.443 INFO [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 05 08:38:47.443 INFO [stderr] ...
Dec 05 08:38:47.443 INFO [stderr] 119 | / generic_impls! {
Dec 05 08:38:47.443 INFO [stderr] 120 | |     Vec<T>,
Dec 05 08:38:47.443 INFO [stderr] 121 | |     BTreeMap<K, V>,
Dec 05 08:38:47.443 INFO [stderr] 122 | |     BTreeSet<T>,
Dec 05 08:38:47.443 INFO [stderr] ...   |
Dec 05 08:38:47.443 INFO [stderr] 127 | |     VecDeque<T>
Dec 05 08:38:47.443 INFO [stderr] 128 | | }
Dec 05 08:38:47.443 INFO [stderr]     | |_- in this macro invocation
Dec 05 08:38:47.443 INFO [stderr] 
Dec 05 08:38:47.443 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 05 08:38:47.443 INFO [stderr]    --> src/arbitrary.rs:108:48
Dec 05 08:38:47.443 INFO [stderr]     |
Dec 05 08:38:47.443 INFO [stderr] 108 |                       FromIteratorGenerator::new(($($placeholder::arbitrary()),*))
Dec 05 08:38:47.443 INFO [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 05 08:38:47.443 INFO [stderr] ...
Dec 05 08:38:47.443 INFO [stderr] 119 | / generic_impls! {
Dec 05 08:38:47.443 INFO [stderr] 120 | |     Vec<T>,
Dec 05 08:38:47.443 INFO [stderr] 121 | |     BTreeMap<K, V>,
Dec 05 08:38:47.443 INFO [stderr] 122 | |     BTreeSet<T>,
Dec 05 08:38:47.443 INFO [stderr] ...   |
Dec 05 08:38:47.443 INFO [stderr] 127 | |     VecDeque<T>
Dec 05 08:38:47.443 INFO [stderr] 128 | | }
Dec 05 08:38:47.443 INFO [stderr]     | |_- in this macro invocation
Dec 05 08:38:47.444 INFO [stderr] 
Dec 05 08:38:47.623 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 05 08:38:47.623 INFO [stderr]    --> src/arbitrary.rs:108:48
Dec 05 08:38:47.623 INFO [stderr]     |
Dec 05 08:38:47.623 INFO [stderr] 108 |                       FromIteratorGenerator::new(($($placeholder::arbitrary()),*))
Dec 05 08:38:47.623 INFO [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 05 08:38:47.623 INFO [stderr] ...
Dec 05 08:38:47.623 INFO [stderr] 119 | / generic_impls! {
Dec 05 08:38:47.623 INFO [stderr] 120 | |     Vec<T>,
Dec 05 08:38:47.623 INFO [stderr] 121 | |     BTreeMap<K, V>,
Dec 05 08:38:47.623 INFO [stderr] 122 | |     BTreeSet<T>,
Dec 05 08:38:47.623 INFO [stderr] ...   |
Dec 05 08:38:47.623 INFO [stderr] 127 | |     VecDeque<T>
Dec 05 08:38:47.623 INFO [stderr] 128 | | }
Dec 05 08:38:47.623 INFO [stderr]     | |_- in this macro invocation
Dec 05 08:38:47.623 INFO [stderr]     |
Dec 05 08:38:47.623 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 05 08:38:47.623 INFO [stderr] 
Dec 05 08:38:47.623 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 05 08:38:47.623 INFO [stderr]    --> src/arbitrary.rs:112:47
Dec 05 08:38:47.623 INFO [stderr]     |
Dec 05 08:38:47.623 INFO [stderr] 112 |                       FromIteratorShrinker::new(($($placeholder::shrink()),*))
Dec 05 08:38:47.623 INFO [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 05 08:38:47.623 INFO [stderr] ...
Dec 05 08:38:47.623 INFO [stderr] 119 | / generic_impls! {
Dec 05 08:38:47.623 INFO [stderr] 120 | |     Vec<T>,
Dec 05 08:38:47.623 INFO [stderr] 121 | |     BTreeMap<K, V>,
Dec 05 08:38:47.623 INFO [stderr] 122 | |     BTreeSet<T>,
Dec 05 08:38:47.623 INFO [stderr] ...   |
Dec 05 08:38:47.623 INFO [stderr] 127 | |     VecDeque<T>
Dec 05 08:38:47.623 INFO [stderr] 128 | | }
Dec 05 08:38:47.623 INFO [stderr]     | |_- in this macro invocation
Dec 05 08:38:47.623 INFO [stderr] 
Dec 05 08:38:47.623 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 05 08:38:47.623 INFO [stderr]    --> src/arbitrary.rs:108:48
Dec 05 08:38:47.623 INFO [stderr]     |
Dec 05 08:38:47.623 INFO [stderr] 108 |                       FromIteratorGenerator::new(($($placeholder::arbitrary()),*))
Dec 05 08:38:47.623 INFO [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 05 08:38:47.623 INFO [stderr] ...
Dec 05 08:38:47.623 INFO [stderr] 119 | / generic_impls! {
Dec 05 08:38:47.623 INFO [stderr] 120 | |     Vec<T>,
Dec 05 08:38:47.623 INFO [stderr] 121 | |     BTreeMap<K, V>,
Dec 05 08:38:47.623 INFO [stderr] 122 | |     BTreeSet<T>,
Dec 05 08:38:47.623 INFO [stderr] ...   |
Dec 05 08:38:47.623 INFO [stderr] 127 | |     VecDeque<T>
Dec 05 08:38:47.623 INFO [stderr] 128 | | }
Dec 05 08:38:47.623 INFO [stderr]     | |_- in this macro invocation
Dec 05 08:38:47.623 INFO [stderr] 
Dec 05 08:39:00.315 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.02s
Dec 05 08:39:00.321 INFO [stderr] su: No module specific data is present
Dec 05 08:39:00.951 INFO running `"docker" "inspect" "6423bfa6833f653daf75bbde695101a9f3cf14a93c18cdcda4029ef699c0ac65"`
Dec 05 08:39:01.120 INFO running `"docker" "rm" "-f" "6423bfa6833f653daf75bbde695101a9f3cf14a93c18cdcda4029ef699c0ac65"`
Dec 05 08:39:01.314 INFO [stdout] 6423bfa6833f653daf75bbde695101a9f3cf14a93c18cdcda4029ef699c0ac65