Nov 27 19:45:19.778 INFO checking stephen-lazaro/reuler against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 27 19:45:19.780 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-7/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 27 19:45:20.312 INFO [stdout] 10c7ee3ca8a9c08021ab064aa9c8921386a4bf3ce1b377e604641c0c2120b7a1
Nov 27 19:45:20.314 INFO running `"docker" "start" "-a" "10c7ee3ca8a9c08021ab064aa9c8921386a4bf3ce1b377e604641c0c2120b7a1"`
Nov 27 19:45:21.996 INFO [stderr] usermod: no changes
Nov 27 19:45:22.145 INFO [stderr]     Checking memchr v0.1.11
Nov 27 19:45:22.145 INFO [stderr]     Checking itertools v0.7.3
Nov 27 19:45:22.173 INFO [stderr]     Checking thread-id v2.0.0
Nov 27 19:45:22.709 INFO [stderr]     Checking thread_local v0.2.7
Nov 27 19:45:22.913 INFO [stderr]     Checking aho-corasick v0.5.3
Nov 27 19:45:24.601 INFO [stderr]     Checking regex v0.1.80
Nov 27 19:45:25.990 INFO [stderr]     Checking reuler v0.1.0 (/source)
Nov 27 19:45:26.155 INFO [stderr] warning: unknown lint: `unused_import`
Nov 27 19:45:26.155 INFO [stderr]  --> src/lib.rs:5:9
Nov 27 19:45:26.156 INFO [stderr]   |
Nov 27 19:45:26.157 INFO [stderr] 5 | #[allow(unused_import)]
Nov 27 19:45:26.157 INFO [stderr]   |         ^^^^^^^^^^^^^
Nov 27 19:45:26.158 INFO [stderr]   |
Nov 27 19:45:26.159 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 27 19:45:26.159 INFO [stderr] 
Nov 27 19:45:26.444 INFO [stderr] warning: unused `#[macro_use]` import
Nov 27 19:45:26.445 INFO [stderr]  --> src/lib.rs:3:1
Nov 27 19:45:26.446 INFO [stderr]   |
Nov 27 19:45:26.447 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Nov 27 19:45:26.447 INFO [stderr]   | ^^^^^^^^^^^^
Nov 27 19:45:26.448 INFO [stderr]   |
Nov 27 19:45:26.448 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 19:45:26.449 INFO [stderr] 
Nov 27 19:45:26.780 INFO [stderr] warning: value assigned to `triangular_num` is never read
Nov 27 19:45:26.781 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Nov 27 19:45:26.782 INFO [stderr]   |
Nov 27 19:45:26.783 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Nov 27 19:45:26.783 INFO [stderr]   |             ^^^^^^^^^^^^^^
Nov 27 19:45:26.792 INFO [stderr]   |
Nov 27 19:45:26.792 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 27 19:45:26.792 INFO [stderr] 
Nov 27 19:45:26.928 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 27 19:45:26.928 INFO [stderr]  --> src/lib.rs:1:12
Nov 27 19:45:26.929 INFO [stderr]   |
Nov 27 19:45:26.929 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Nov 27 19:45:26.930 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:45:26.930 INFO [stderr]   |
Nov 27 19:45:26.931 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 27 19:45:26.931 INFO [stderr] 
Nov 27 19:45:26.932 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Nov 27 19:45:26.933 INFO [stderr]  --> src/lib.rs:2:12
Nov 27 19:45:26.933 INFO [stderr]   |
Nov 27 19:45:26.934 INFO [stderr] 2 | #![feature(iterator_step_by)]
Nov 27 19:45:26.934 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 27 19:45:26.935 INFO [stderr] 
Nov 27 19:45:27.068 INFO [stderr] warning: unknown lint: `unused_import`
Nov 27 19:45:27.069 INFO [stderr]  --> src/main.rs:5:9
Nov 27 19:45:27.069 INFO [stderr]   |
Nov 27 19:45:27.069 INFO [stderr] 5 | #[allow(unused_import)]
Nov 27 19:45:27.069 INFO [stderr]   |         ^^^^^^^^^^^^^
Nov 27 19:45:27.070 INFO [stderr]   |
Nov 27 19:45:27.070 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 27 19:45:27.070 INFO [stderr] 
Nov 27 19:45:27.240 INFO [stderr] warning: unused `#[macro_use]` import
Nov 27 19:45:27.240 INFO [stderr]  --> src/main.rs:3:1
Nov 27 19:45:27.240 INFO [stderr]   |
Nov 27 19:45:27.241 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Nov 27 19:45:27.241 INFO [stderr]   | ^^^^^^^^^^^^
Nov 27 19:45:27.241 INFO [stderr]   |
Nov 27 19:45:27.242 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 19:45:27.242 INFO [stderr] 
Nov 27 19:45:27.540 INFO [stderr] warning: value assigned to `triangular_num` is never read
Nov 27 19:45:27.541 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Nov 27 19:45:27.542 INFO [stderr]   |
Nov 27 19:45:27.542 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Nov 27 19:45:27.543 INFO [stderr]   |             ^^^^^^^^^^^^^^
Nov 27 19:45:27.543 INFO [stderr]   |
Nov 27 19:45:27.544 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 27 19:45:27.544 INFO [stderr] 
Nov 27 19:45:27.656 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 27 19:45:27.657 INFO [stderr]  --> src/main.rs:1:12
Nov 27 19:45:27.658 INFO [stderr]   |
Nov 27 19:45:27.658 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Nov 27 19:45:27.659 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:45:27.660 INFO [stderr]   |
Nov 27 19:45:27.660 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 27 19:45:27.661 INFO [stderr] 
Nov 27 19:45:27.662 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Nov 27 19:45:27.663 INFO [stderr]  --> src/main.rs:2:12
Nov 27 19:45:27.663 INFO [stderr]   |
Nov 27 19:45:27.664 INFO [stderr] 2 | #![feature(iterator_step_by)]
Nov 27 19:45:27.665 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 27 19:45:27.665 INFO [stderr] 
Nov 27 19:45:28.455 INFO [stderr]     Checking env_logger v0.3.5
Nov 27 19:45:29.078 INFO [stderr]     Checking quickcheck v0.3.2
Nov 27 19:45:30.551 INFO [stderr] warning: unknown lint: `unused_import`
Nov 27 19:45:30.551 INFO [stderr]  --> src/main.rs:5:9
Nov 27 19:45:30.551 INFO [stderr]   |
Nov 27 19:45:30.551 INFO [stderr] 5 | #[allow(unused_import)]
Nov 27 19:45:30.551 INFO [stderr]   |         ^^^^^^^^^^^^^
Nov 27 19:45:30.551 INFO [stderr]   |
Nov 27 19:45:30.551 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 27 19:45:30.553 INFO [stderr] 
Nov 27 19:45:30.558 INFO [stderr] warning: unknown lint: `unused_import`
Nov 27 19:45:30.558 INFO [stderr]  --> src/lib.rs:5:9
Nov 27 19:45:30.559 INFO [stderr]   |
Nov 27 19:45:30.560 INFO [stderr] 5 | #[allow(unused_import)]
Nov 27 19:45:30.560 INFO [stderr]   |         ^^^^^^^^^^^^^
Nov 27 19:45:30.561 INFO [stderr]   |
Nov 27 19:45:30.561 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 27 19:45:30.562 INFO [stderr] 
Nov 27 19:45:30.680 INFO [stderr] warning: unused `#[macro_use]` import
Nov 27 19:45:30.680 INFO [stderr]  --> src/main.rs:3:1
Nov 27 19:45:30.680 INFO [stderr]   |
Nov 27 19:45:30.680 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Nov 27 19:45:30.680 INFO [stderr]   | ^^^^^^^^^^^^
Nov 27 19:45:30.680 INFO [stderr]   |
Nov 27 19:45:30.680 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 19:45:30.681 INFO [stderr] 
Nov 27 19:45:30.851 INFO [stderr] warning: value assigned to `triangular_num` is never read
Nov 27 19:45:30.851 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Nov 27 19:45:30.851 INFO [stderr]   |
Nov 27 19:45:30.851 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Nov 27 19:45:30.851 INFO [stderr]   |             ^^^^^^^^^^^^^^
Nov 27 19:45:30.851 INFO [stderr]   |
Nov 27 19:45:30.853 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 27 19:45:30.854 INFO [stderr] 
Nov 27 19:45:30.913 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 27 19:45:30.914 INFO [stderr]  --> src/main.rs:1:12
Nov 27 19:45:30.915 INFO [stderr]   |
Nov 27 19:45:30.915 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Nov 27 19:45:30.916 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:45:30.917 INFO [stderr]   |
Nov 27 19:45:30.917 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 27 19:45:30.918 INFO [stderr] 
Nov 27 19:45:30.919 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Nov 27 19:45:30.919 INFO [stderr]  --> src/main.rs:2:12
Nov 27 19:45:30.919 INFO [stderr]   |
Nov 27 19:45:30.919 INFO [stderr] 2 | #![feature(iterator_step_by)]
Nov 27 19:45:30.919 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 27 19:45:30.919 INFO [stderr] 
Nov 27 19:45:30.998 INFO [stderr] warning: unused `#[macro_use]` import
Nov 27 19:45:30.998 INFO [stderr]  --> src/lib.rs:3:1
Nov 27 19:45:30.998 INFO [stderr]   |
Nov 27 19:45:30.998 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Nov 27 19:45:30.998 INFO [stderr]   | ^^^^^^^^^^^^
Nov 27 19:45:30.998 INFO [stderr]   |
Nov 27 19:45:30.998 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 19:45:30.998 INFO [stderr] 
Nov 27 19:45:31.188 INFO [stderr] warning: value assigned to `triangular_num` is never read
Nov 27 19:45:31.188 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Nov 27 19:45:31.188 INFO [stderr]   |
Nov 27 19:45:31.188 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Nov 27 19:45:31.188 INFO [stderr]   |             ^^^^^^^^^^^^^^
Nov 27 19:45:31.188 INFO [stderr]   |
Nov 27 19:45:31.188 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 27 19:45:31.188 INFO [stderr] 
Nov 27 19:45:31.244 INFO [stderr] warning: struct is never constructed: `Valid`
Nov 27 19:45:31.244 INFO [stderr]   --> src/lib.rs:15:5
Nov 27 19:45:31.244 INFO [stderr]    |
Nov 27 19:45:31.244 INFO [stderr] 15 |     pub struct Valid <A : Testable> (A);
Nov 27 19:45:31.244 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:45:31.244 INFO [stderr]    |
Nov 27 19:45:31.244 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 27 19:45:31.244 INFO [stderr] 
Nov 27 19:45:31.244 INFO [stderr] warning: struct is never constructed: `Invalid`
Nov 27 19:45:31.244 INFO [stderr]   --> src/lib.rs:16:5
Nov 27 19:45:31.244 INFO [stderr]    |
Nov 27 19:45:31.244 INFO [stderr] 16 |     pub struct Invalid <A : Testable> (A);
Nov 27 19:45:31.244 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:45:31.244 INFO [stderr] 
Nov 27 19:45:31.245 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 27 19:45:31.245 INFO [stderr]  --> src/lib.rs:1:12
Nov 27 19:45:31.245 INFO [stderr]   |
Nov 27 19:45:31.245 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Nov 27 19:45:31.245 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:45:31.245 INFO [stderr]   |
Nov 27 19:45:31.245 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 27 19:45:31.245 INFO [stderr] 
Nov 27 19:45:31.245 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Nov 27 19:45:31.245 INFO [stderr]  --> src/lib.rs:2:12
Nov 27 19:45:31.245 INFO [stderr]   |
Nov 27 19:45:31.245 INFO [stderr] 2 | #![feature(iterator_step_by)]
Nov 27 19:45:31.245 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 27 19:45:31.245 INFO [stderr] 
Nov 27 19:45:31.301 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.28s
Nov 27 19:45:31.313 INFO [stderr] su: No module specific data is present
Nov 27 19:45:32.466 INFO running `"docker" "inspect" "10c7ee3ca8a9c08021ab064aa9c8921386a4bf3ce1b377e604641c0c2120b7a1"`
Nov 27 19:45:32.737 INFO running `"docker" "rm" "-f" "10c7ee3ca8a9c08021ab064aa9c8921386a4bf3ce1b377e604641c0c2120b7a1"`
Nov 27 19:45:33.104 INFO [stdout] 10c7ee3ca8a9c08021ab064aa9c8921386a4bf3ce1b377e604641c0c2120b7a1