Dec 11 08:52:36.551 INFO checking stephen-lazaro/reuler against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 08:52:36.551 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 08:52:37.071 INFO [stdout] a28209e20cf55180d53216c572a4138ebb2b407e12225376128cbbe5f814c665
Dec 11 08:52:37.073 INFO running `"docker" "start" "-a" "a28209e20cf55180d53216c572a4138ebb2b407e12225376128cbbe5f814c665"`
Dec 11 08:52:39.680 INFO [stderr] usermod: no changes
Dec 11 08:52:39.780 INFO [stderr]     Checking memchr v0.1.11
Dec 11 08:52:39.780 INFO [stderr]     Checking itertools v0.7.3
Dec 11 08:52:39.793 INFO [stderr]     Checking thread-id v2.0.0
Dec 11 08:52:40.390 INFO [stderr]     Checking thread_local v0.2.7
Dec 11 08:52:40.418 INFO [stderr]     Checking aho-corasick v0.5.3
Dec 11 08:52:41.938 INFO [stderr]     Checking regex v0.1.80
Dec 11 08:52:43.946 INFO [stderr]     Checking reuler v0.1.0 (/source)
Dec 11 08:52:44.099 INFO [stderr] warning: unknown lint: `unused_import`
Dec 11 08:52:44.099 INFO [stderr]  --> src/lib.rs:5:9
Dec 11 08:52:44.099 INFO [stderr]   |
Dec 11 08:52:44.099 INFO [stderr] 5 | #[allow(unused_import)]
Dec 11 08:52:44.099 INFO [stderr]   |         ^^^^^^^^^^^^^
Dec 11 08:52:44.099 INFO [stderr]   |
Dec 11 08:52:44.099 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Dec 11 08:52:44.099 INFO [stderr] 
Dec 11 08:52:44.401 INFO [stderr] warning: unused `#[macro_use]` import
Dec 11 08:52:44.402 INFO [stderr]  --> src/lib.rs:3:1
Dec 11 08:52:44.402 INFO [stderr]   |
Dec 11 08:52:44.402 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Dec 11 08:52:44.403 INFO [stderr]   | ^^^^^^^^^^^^
Dec 11 08:52:44.403 INFO [stderr]   |
Dec 11 08:52:44.403 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 08:52:44.403 INFO [stderr] 
Dec 11 08:52:44.728 INFO [stderr] warning: value assigned to `triangular_num` is never read
Dec 11 08:52:44.728 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Dec 11 08:52:44.728 INFO [stderr]   |
Dec 11 08:52:44.729 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Dec 11 08:52:44.729 INFO [stderr]   |             ^^^^^^^^^^^^^^
Dec 11 08:52:44.729 INFO [stderr]   |
Dec 11 08:52:44.729 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 11 08:52:44.729 INFO [stderr] 
Dec 11 08:52:44.777 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 11 08:52:44.777 INFO [stderr]  --> src/lib.rs:1:12
Dec 11 08:52:44.777 INFO [stderr]   |
Dec 11 08:52:44.777 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Dec 11 08:52:44.777 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:52:44.777 INFO [stderr]   |
Dec 11 08:52:44.777 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 11 08:52:44.777 INFO [stderr] 
Dec 11 08:52:44.778 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 11 08:52:44.778 INFO [stderr]  --> src/lib.rs:2:12
Dec 11 08:52:44.778 INFO [stderr]   |
Dec 11 08:52:44.778 INFO [stderr] 2 | #![feature(iterator_step_by)]
Dec 11 08:52:44.778 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 11 08:52:44.778 INFO [stderr] 
Dec 11 08:52:45.015 INFO [stderr] warning: unknown lint: `unused_import`
Dec 11 08:52:45.016 INFO [stderr]  --> src/main.rs:5:9
Dec 11 08:52:45.016 INFO [stderr]   |
Dec 11 08:52:45.016 INFO [stderr] 5 | #[allow(unused_import)]
Dec 11 08:52:45.017 INFO [stderr]   |         ^^^^^^^^^^^^^
Dec 11 08:52:45.017 INFO [stderr]   |
Dec 11 08:52:45.017 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Dec 11 08:52:45.018 INFO [stderr] 
Dec 11 08:52:45.196 INFO [stderr] warning: unused `#[macro_use]` import
Dec 11 08:52:45.196 INFO [stderr]  --> src/main.rs:3:1
Dec 11 08:52:45.197 INFO [stderr]   |
Dec 11 08:52:45.197 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Dec 11 08:52:45.197 INFO [stderr]   | ^^^^^^^^^^^^
Dec 11 08:52:45.197 INFO [stderr]   |
Dec 11 08:52:45.198 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 08:52:45.198 INFO [stderr] 
Dec 11 08:52:45.498 INFO [stderr] warning: value assigned to `triangular_num` is never read
Dec 11 08:52:45.498 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Dec 11 08:52:45.498 INFO [stderr]   |
Dec 11 08:52:45.498 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Dec 11 08:52:45.498 INFO [stderr]   |             ^^^^^^^^^^^^^^
Dec 11 08:52:45.498 INFO [stderr]   |
Dec 11 08:52:45.498 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 11 08:52:45.498 INFO [stderr] 
Dec 11 08:52:45.508 INFO [stderr]     Checking env_logger v0.3.5
Dec 11 08:52:45.596 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 11 08:52:45.596 INFO [stderr]  --> src/main.rs:1:12
Dec 11 08:52:45.596 INFO [stderr]   |
Dec 11 08:52:45.596 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Dec 11 08:52:45.596 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:52:45.596 INFO [stderr]   |
Dec 11 08:52:45.596 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 11 08:52:45.596 INFO [stderr] 
Dec 11 08:52:45.596 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 11 08:52:45.596 INFO [stderr]  --> src/main.rs:2:12
Dec 11 08:52:45.596 INFO [stderr]   |
Dec 11 08:52:45.596 INFO [stderr] 2 | #![feature(iterator_step_by)]
Dec 11 08:52:45.596 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 11 08:52:45.596 INFO [stderr] 
Dec 11 08:52:46.164 INFO [stderr]     Checking quickcheck v0.3.2
Dec 11 08:52:47.506 INFO [stderr] warning: unknown lint: `unused_import`
Dec 11 08:52:47.507 INFO [stderr]  --> src/lib.rs:5:9
Dec 11 08:52:47.507 INFO [stderr]   |
Dec 11 08:52:47.507 INFO [stderr] 5 | #[allow(unused_import)]
Dec 11 08:52:47.508 INFO [stderr]   |         ^^^^^^^^^^^^^
Dec 11 08:52:47.508 INFO [stderr]   |
Dec 11 08:52:47.508 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Dec 11 08:52:47.509 INFO [stderr] 
Dec 11 08:52:47.628 INFO [stderr] warning: unknown lint: `unused_import`
Dec 11 08:52:47.628 INFO [stderr]  --> src/main.rs:5:9
Dec 11 08:52:47.628 INFO [stderr]   |
Dec 11 08:52:47.628 INFO [stderr] 5 | #[allow(unused_import)]
Dec 11 08:52:47.628 INFO [stderr]   |         ^^^^^^^^^^^^^
Dec 11 08:52:47.628 INFO [stderr]   |
Dec 11 08:52:47.628 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Dec 11 08:52:47.628 INFO [stderr] 
Dec 11 08:52:47.801 INFO [stderr] warning: unused `#[macro_use]` import
Dec 11 08:52:47.801 INFO [stderr]  --> src/lib.rs:3:1
Dec 11 08:52:47.801 INFO [stderr]   |
Dec 11 08:52:47.801 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Dec 11 08:52:47.801 INFO [stderr]   | ^^^^^^^^^^^^
Dec 11 08:52:47.801 INFO [stderr]   |
Dec 11 08:52:47.801 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 08:52:47.801 INFO [stderr] 
Dec 11 08:52:47.997 INFO [stderr] warning: unused `#[macro_use]` import
Dec 11 08:52:47.997 INFO [stderr]  --> src/main.rs:3:1
Dec 11 08:52:47.997 INFO [stderr]   |
Dec 11 08:52:47.997 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Dec 11 08:52:47.997 INFO [stderr]   | ^^^^^^^^^^^^
Dec 11 08:52:47.997 INFO [stderr]   |
Dec 11 08:52:47.997 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 08:52:47.997 INFO [stderr] 
Dec 11 08:52:48.080 INFO [stderr] warning: value assigned to `triangular_num` is never read
Dec 11 08:52:48.080 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Dec 11 08:52:48.080 INFO [stderr]   |
Dec 11 08:52:48.080 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Dec 11 08:52:48.080 INFO [stderr]   |             ^^^^^^^^^^^^^^
Dec 11 08:52:48.081 INFO [stderr]   |
Dec 11 08:52:48.081 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 11 08:52:48.081 INFO [stderr] 
Dec 11 08:52:48.172 INFO [stderr] warning: struct is never constructed: `Valid`
Dec 11 08:52:48.172 INFO [stderr]   --> src/lib.rs:15:5
Dec 11 08:52:48.172 INFO [stderr]    |
Dec 11 08:52:48.172 INFO [stderr] 15 |     pub struct Valid <A : Testable> (A);
Dec 11 08:52:48.172 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:52:48.172 INFO [stderr]    |
Dec 11 08:52:48.172 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 08:52:48.172 INFO [stderr] 
Dec 11 08:52:48.172 INFO [stderr] warning: struct is never constructed: `Invalid`
Dec 11 08:52:48.172 INFO [stderr]   --> src/lib.rs:16:5
Dec 11 08:52:48.172 INFO [stderr]    |
Dec 11 08:52:48.172 INFO [stderr] 16 |     pub struct Invalid <A : Testable> (A);
Dec 11 08:52:48.172 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:52:48.172 INFO [stderr] 
Dec 11 08:52:48.172 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 11 08:52:48.172 INFO [stderr]  --> src/lib.rs:1:12
Dec 11 08:52:48.172 INFO [stderr]   |
Dec 11 08:52:48.172 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Dec 11 08:52:48.172 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:52:48.172 INFO [stderr]   |
Dec 11 08:52:48.172 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 11 08:52:48.172 INFO [stderr] 
Dec 11 08:52:48.172 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 11 08:52:48.172 INFO [stderr]  --> src/lib.rs:2:12
Dec 11 08:52:48.172 INFO [stderr]   |
Dec 11 08:52:48.172 INFO [stderr] 2 | #![feature(iterator_step_by)]
Dec 11 08:52:48.172 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 11 08:52:48.172 INFO [stderr] 
Dec 11 08:52:48.339 INFO [stderr] warning: value assigned to `triangular_num` is never read
Dec 11 08:52:48.339 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Dec 11 08:52:48.339 INFO [stderr]   |
Dec 11 08:52:48.339 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Dec 11 08:52:48.339 INFO [stderr]   |             ^^^^^^^^^^^^^^
Dec 11 08:52:48.339 INFO [stderr]   |
Dec 11 08:52:48.339 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 11 08:52:48.339 INFO [stderr] 
Dec 11 08:52:48.388 INFO [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 11 08:52:48.388 INFO [stderr]  --> src/main.rs:1:12
Dec 11 08:52:48.388 INFO [stderr]   |
Dec 11 08:52:48.388 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Dec 11 08:52:48.388 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:52:48.388 INFO [stderr]   |
Dec 11 08:52:48.388 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 11 08:52:48.388 INFO [stderr] 
Dec 11 08:52:48.392 INFO [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
Dec 11 08:52:48.392 INFO [stderr]  --> src/main.rs:2:12
Dec 11 08:52:48.392 INFO [stderr]   |
Dec 11 08:52:48.392 INFO [stderr] 2 | #![feature(iterator_step_by)]
Dec 11 08:52:48.392 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Dec 11 08:52:48.392 INFO [stderr] 
Dec 11 08:52:48.438 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.73s
Dec 11 08:52:48.444 INFO [stderr] su: No module specific data is present
Dec 11 08:52:49.788 INFO running `"docker" "inspect" "a28209e20cf55180d53216c572a4138ebb2b407e12225376128cbbe5f814c665"`
Dec 11 08:52:50.116 INFO running `"docker" "rm" "-f" "a28209e20cf55180d53216c572a4138ebb2b407e12225376128cbbe5f814c665"`
Dec 11 08:52:50.371 INFO [stdout] a28209e20cf55180d53216c572a4138ebb2b407e12225376128cbbe5f814c665