Nov 29 17:33:28.949 INFO checking stephen-lazaro/reuler against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 17:33:28.949 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 29 17:33:29.512 INFO [stdout] 305392bb1e98e3d4e22419ed7a9c6c4fec41c3e4db960782e24251fcfaec8380
Nov 29 17:33:29.514 INFO running `"docker" "start" "-a" "305392bb1e98e3d4e22419ed7a9c6c4fec41c3e4db960782e24251fcfaec8380"`
Nov 29 17:33:31.980 INFO [stderr] usermod: no changes
Nov 29 17:33:32.137 INFO [stderr]     Checking itertools v0.7.3
Nov 29 17:33:32.148 INFO [stderr]     Checking env_logger v0.3.5
Nov 29 17:33:32.870 INFO [stderr]     Checking quickcheck v0.3.2
Nov 29 17:33:35.470 INFO [stderr]     Checking reuler v0.1.0 (/source)
Nov 29 17:33:35.653 INFO [stderr] warning: unknown lint: `unused_import`
Nov 29 17:33:35.654 INFO [stderr]  --> src/lib.rs:5:9
Nov 29 17:33:35.654 INFO [stderr]   |
Nov 29 17:33:35.654 INFO [stderr] 5 | #[allow(unused_import)]
Nov 29 17:33:35.655 INFO [stderr]   |         ^^^^^^^^^^^^^
Nov 29 17:33:35.655 INFO [stderr]   |
Nov 29 17:33:35.655 INFO [stderr] warning: unknown lint: `unused_import`
Nov 29 17:33:35.656 INFO [stderr]  --> src/lib.rs:5:9
Nov 29 17:33:35.656 INFO [stderr]   |
Nov 29 17:33:35.656 INFO [stderr] 5 | #[allow(unused_import)]
Nov 29 17:33:35.657 INFO [stderr]   |         ^^^^^^^^^^^^^
Nov 29 17:33:35.657 INFO [stderr]   |
Nov 29 17:33:35.657 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 29 17:33:35.657 INFO [stderr] 
Nov 29 17:33:35.658 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 29 17:33:35.658 INFO [stderr] 
Nov 29 17:33:35.848 INFO [stderr] warning: unused `#[macro_use]` import
Nov 29 17:33:35.849 INFO [stderr]  --> src/lib.rs:3:1
Nov 29 17:33:35.849 INFO [stderr]   |
Nov 29 17:33:35.849 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Nov 29 17:33:35.849 INFO [stderr]   | ^^^^^^^^^^^^
Nov 29 17:33:35.850 INFO [stderr]   |
Nov 29 17:33:35.850 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 17:33:35.850 INFO [stderr] 
Nov 29 17:33:36.056 INFO [stderr] warning: value assigned to `triangular_num` is never read
Nov 29 17:33:36.056 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Nov 29 17:33:36.056 INFO [stderr]   |
Nov 29 17:33:36.056 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Nov 29 17:33:36.057 INFO [stderr]   |             ^^^^^^^^^^^^^^
Nov 29 17:33:36.057 INFO [stderr]   |
Nov 29 17:33:36.057 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 29 17:33:36.057 INFO [stderr] 
Nov 29 17:33:36.126 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 29 17:33:36.127 INFO [stderr]  --> src/lib.rs:1:12
Nov 29 17:33:36.127 INFO [stderr]   |
Nov 29 17:33:36.127 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Nov 29 17:33:36.127 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:33:36.128 INFO [stderr]   |
Nov 29 17:33:36.128 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 29 17:33:36.128 INFO [stderr] 
Nov 29 17:33:36.129 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Nov 29 17:33:36.129 INFO [stderr]  --> src/lib.rs:2:12
Nov 29 17:33:36.130 INFO [stderr]   |
Nov 29 17:33:36.130 INFO [stderr] 2 | #![feature(iterator_step_by)]
Nov 29 17:33:36.130 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 29 17:33:36.130 INFO [stderr] 
Nov 29 17:33:36.152 INFO [stderr] warning: unused `#[macro_use]` import
Nov 29 17:33:36.152 INFO [stderr]  --> src/lib.rs:3:1
Nov 29 17:33:36.152 INFO [stderr]   |
Nov 29 17:33:36.152 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Nov 29 17:33:36.152 INFO [stderr]   | ^^^^^^^^^^^^
Nov 29 17:33:36.152 INFO [stderr]   |
Nov 29 17:33:36.152 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 17:33:36.152 INFO [stderr] 
Nov 29 17:33:36.351 INFO [stderr] warning: unknown lint: `unused_import`
Nov 29 17:33:36.351 INFO [stderr]  --> src/main.rs:5:9
Nov 29 17:33:36.351 INFO [stderr]   |
Nov 29 17:33:36.352 INFO [stderr] 5 | #[allow(unused_import)]
Nov 29 17:33:36.352 INFO [stderr]   |         ^^^^^^^^^^^^^
Nov 29 17:33:36.356 INFO [stderr]   |
Nov 29 17:33:36.356 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 29 17:33:36.357 INFO [stderr] 
Nov 29 17:33:36.416 INFO [stderr] warning: unknown lint: `unused_import`
Nov 29 17:33:36.417 INFO [stderr]  --> src/main.rs:5:9
Nov 29 17:33:36.417 INFO [stderr]   |
Nov 29 17:33:36.417 INFO [stderr] 5 | #[allow(unused_import)]
Nov 29 17:33:36.417 INFO [stderr]   |         ^^^^^^^^^^^^^
Nov 29 17:33:36.418 INFO [stderr]   |
Nov 29 17:33:36.418 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 29 17:33:36.418 INFO [stderr] 
Nov 29 17:33:36.660 INFO [stderr] warning: unused `#[macro_use]` import
Nov 29 17:33:36.660 INFO [stderr]  --> src/main.rs:3:1
Nov 29 17:33:36.660 INFO [stderr]   |
Nov 29 17:33:36.661 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Nov 29 17:33:36.661 INFO [stderr]   | ^^^^^^^^^^^^
Nov 29 17:33:36.661 INFO [stderr]   |
Nov 29 17:33:36.662 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 17:33:36.662 INFO [stderr] 
Nov 29 17:33:36.720 INFO [stderr] warning: unused `#[macro_use]` import
Nov 29 17:33:36.720 INFO [stderr]  --> src/main.rs:3:1
Nov 29 17:33:36.720 INFO [stderr]   |
Nov 29 17:33:36.720 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Nov 29 17:33:36.720 INFO [stderr]   | ^^^^^^^^^^^^
Nov 29 17:33:36.720 INFO [stderr]   |
Nov 29 17:33:36.720 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 29 17:33:36.721 INFO [stderr] 
Nov 29 17:33:36.800 INFO [stderr] warning: value assigned to `triangular_num` is never read
Nov 29 17:33:36.800 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Nov 29 17:33:36.800 INFO [stderr]   |
Nov 29 17:33:36.800 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Nov 29 17:33:36.800 INFO [stderr]   |             ^^^^^^^^^^^^^^
Nov 29 17:33:36.800 INFO [stderr]   |
Nov 29 17:33:36.800 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 29 17:33:36.800 INFO [stderr] 
Nov 29 17:33:37.004 INFO [stderr] warning: struct is never constructed: `Valid`
Nov 29 17:33:37.004 INFO [stderr]   --> src/lib.rs:15:5
Nov 29 17:33:37.004 INFO [stderr]    |
Nov 29 17:33:37.004 INFO [stderr] 15 |     pub struct Valid <A : Testable> (A);
Nov 29 17:33:37.004 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:33:37.004 INFO [stderr]    |
Nov 29 17:33:37.004 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 17:33:37.004 INFO [stderr] 
Nov 29 17:33:37.004 INFO [stderr] warning: struct is never constructed: `Invalid`
Nov 29 17:33:37.004 INFO [stderr]   --> src/lib.rs:16:5
Nov 29 17:33:37.004 INFO [stderr]    |
Nov 29 17:33:37.004 INFO [stderr] 16 |     pub struct Invalid <A : Testable> (A);
Nov 29 17:33:37.004 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:33:37.004 INFO [stderr] 
Nov 29 17:33:37.004 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 29 17:33:37.005 INFO [stderr]  --> src/lib.rs:1:12
Nov 29 17:33:37.005 INFO [stderr]   |
Nov 29 17:33:37.005 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Nov 29 17:33:37.005 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:33:37.005 INFO [stderr]   |
Nov 29 17:33:37.005 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 29 17:33:37.005 INFO [stderr] 
Nov 29 17:33:37.005 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Nov 29 17:33:37.005 INFO [stderr]  --> src/lib.rs:2:12
Nov 29 17:33:37.005 INFO [stderr]   |
Nov 29 17:33:37.005 INFO [stderr] 2 | #![feature(iterator_step_by)]
Nov 29 17:33:37.005 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 29 17:33:37.005 INFO [stderr] 
Nov 29 17:33:37.076 INFO [stderr] warning: value assigned to `triangular_num` is never read
Nov 29 17:33:37.076 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Nov 29 17:33:37.076 INFO [stderr]   |
Nov 29 17:33:37.076 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Nov 29 17:33:37.076 INFO [stderr]   |             ^^^^^^^^^^^^^^
Nov 29 17:33:37.076 INFO [stderr]   |
Nov 29 17:33:37.076 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 29 17:33:37.076 INFO [stderr] 
Nov 29 17:33:37.193 INFO [stderr] warning: value assigned to `triangular_num` is never read
Nov 29 17:33:37.193 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Nov 29 17:33:37.193 INFO [stderr]   |
Nov 29 17:33:37.193 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Nov 29 17:33:37.193 INFO [stderr]   |             ^^^^^^^^^^^^^^
Nov 29 17:33:37.193 INFO [stderr]   |
Nov 29 17:33:37.194 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 29 17:33:37.194 INFO [stderr] 
Nov 29 17:33:37.211 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 29 17:33:37.211 INFO [stderr]  --> src/main.rs:1:12
Nov 29 17:33:37.211 INFO [stderr]   |
Nov 29 17:33:37.211 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Nov 29 17:33:37.211 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:33:37.211 INFO [stderr]   |
Nov 29 17:33:37.211 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 29 17:33:37.211 INFO [stderr] 
Nov 29 17:33:37.212 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Nov 29 17:33:37.212 INFO [stderr]  --> src/main.rs:2:12
Nov 29 17:33:37.212 INFO [stderr]   |
Nov 29 17:33:37.212 INFO [stderr] 2 | #![feature(iterator_step_by)]
Nov 29 17:33:37.212 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 29 17:33:37.212 INFO [stderr] 
Nov 29 17:33:37.326 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 29 17:33:37.326 INFO [stderr]  --> src/main.rs:1:12
Nov 29 17:33:37.326 INFO [stderr]   |
Nov 29 17:33:37.326 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Nov 29 17:33:37.326 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 29 17:33:37.326 INFO [stderr]   |
Nov 29 17:33:37.326 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 29 17:33:37.326 INFO [stderr] 
Nov 29 17:33:37.326 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Nov 29 17:33:37.326 INFO [stderr]  --> src/main.rs:2:12
Nov 29 17:33:37.326 INFO [stderr]   |
Nov 29 17:33:37.326 INFO [stderr] 2 | #![feature(iterator_step_by)]
Nov 29 17:33:37.326 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 29 17:33:37.326 INFO [stderr] 
Nov 29 17:33:37.371 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.35s
Nov 29 17:33:37.405 INFO [stderr] su: No module specific data is present
Nov 29 17:33:38.562 INFO running `"docker" "inspect" "305392bb1e98e3d4e22419ed7a9c6c4fec41c3e4db960782e24251fcfaec8380"`
Nov 29 17:33:38.918 INFO running `"docker" "rm" "-f" "305392bb1e98e3d4e22419ed7a9c6c4fec41c3e4db960782e24251fcfaec8380"`
Nov 29 17:33:39.292 INFO [stdout] 305392bb1e98e3d4e22419ed7a9c6c4fec41c3e4db960782e24251fcfaec8380