Nov 27 19:45:08.248 INFO checking stephen-lazaro/reuler against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 19:45:08.249 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-7/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 19:45:08.656 INFO [stdout] dade6aa6abf1f1e392c4a529ab1d8e8fa27950c4f21f736ec71758b12cb55c7a
Nov 27 19:45:08.659 INFO running `"docker" "start" "-a" "dade6aa6abf1f1e392c4a529ab1d8e8fa27950c4f21f736ec71758b12cb55c7a"`
Nov 27 19:45:11.400 INFO [stderr] usermod: no changes
Nov 27 19:45:11.611 INFO [stderr]     Checking itertools v0.7.3
Nov 27 19:45:11.640 INFO [stderr]     Checking env_logger v0.3.5
Nov 27 19:45:12.310 INFO [stderr]     Checking quickcheck v0.3.2
Nov 27 19:45:15.290 INFO [stderr]     Checking reuler v0.1.0 (/source)
Nov 27 19:45:15.463 INFO [stderr] warning: unknown lint: `unused_import`
Nov 27 19:45:15.463 INFO [stderr]  --> src/lib.rs:5:9
Nov 27 19:45:15.464 INFO [stderr]   |
Nov 27 19:45:15.465 INFO [stderr] 5 | #[allow(unused_import)]
Nov 27 19:45:15.466 INFO [stderr]   |         ^^^^^^^^^^^^^
Nov 27 19:45:15.466 INFO [stderr]   |
Nov 27 19:45:15.467 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 27 19:45:15.467 INFO [stderr] 
Nov 27 19:45:15.486 INFO [stderr] warning: unknown lint: `unused_import`
Nov 27 19:45:15.486 INFO [stderr]  --> src/lib.rs:5:9
Nov 27 19:45:15.486 INFO [stderr]   |
Nov 27 19:45:15.486 INFO [stderr] 5 | #[allow(unused_import)]
Nov 27 19:45:15.486 INFO [stderr]   |         ^^^^^^^^^^^^^
Nov 27 19:45:15.486 INFO [stderr]   |
Nov 27 19:45:15.486 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 27 19:45:15.486 INFO [stderr] 
Nov 27 19:45:15.720 INFO [stderr] warning: unused `#[macro_use]` import
Nov 27 19:45:15.721 INFO [stderr]  --> src/lib.rs:3:1
Nov 27 19:45:15.721 INFO [stderr]   |
Nov 27 19:45:15.721 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Nov 27 19:45:15.721 INFO [stderr]   | ^^^^^^^^^^^^
Nov 27 19:45:15.721 INFO [stderr]   |
Nov 27 19:45:15.721 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 19:45:15.721 INFO [stderr] 
Nov 27 19:45:15.841 INFO [stderr] warning: unused `#[macro_use]` import
Nov 27 19:45:15.841 INFO [stderr]  --> src/lib.rs:3:1
Nov 27 19:45:15.841 INFO [stderr]   |
Nov 27 19:45:15.841 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Nov 27 19:45:15.841 INFO [stderr]   | ^^^^^^^^^^^^
Nov 27 19:45:15.841 INFO [stderr]   |
Nov 27 19:45:15.841 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 19:45:15.843 INFO [stderr] 
Nov 27 19:45:16.034 INFO [stderr] warning: value assigned to `triangular_num` is never read
Nov 27 19:45:16.034 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Nov 27 19:45:16.034 INFO [stderr]   |
Nov 27 19:45:16.034 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Nov 27 19:45:16.034 INFO [stderr]   |             ^^^^^^^^^^^^^^
Nov 27 19:45:16.034 INFO [stderr]   |
Nov 27 19:45:16.034 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 27 19:45:16.034 INFO [stderr] 
Nov 27 19:45:16.113 INFO [stderr] warning: value assigned to `triangular_num` is never read
Nov 27 19:45:16.113 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Nov 27 19:45:16.113 INFO [stderr]   |
Nov 27 19:45:16.113 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Nov 27 19:45:16.113 INFO [stderr]   |             ^^^^^^^^^^^^^^
Nov 27 19:45:16.113 INFO [stderr]   |
Nov 27 19:45:16.116 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 27 19:45:16.116 INFO [stderr] 
Nov 27 19:45:16.140 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 19:45:16.140 INFO [stderr]  --> src/lib.rs:1:12
Nov 27 19:45:16.140 INFO [stderr]   |
Nov 27 19:45:16.140 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Nov 27 19:45:16.140 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:45:16.141 INFO [stderr]   |
Nov 27 19:45:16.141 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 27 19:45:16.141 INFO [stderr] 
Nov 27 19:45:16.141 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 19:45:16.141 INFO [stderr]  --> src/lib.rs:2:12
Nov 27 19:45:16.141 INFO [stderr]   |
Nov 27 19:45:16.141 INFO [stderr] 2 | #![feature(iterator_step_by)]
Nov 27 19:45:16.141 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 27 19:45:16.141 INFO [stderr] 
Nov 27 19:45:16.300 INFO [stderr] warning: struct is never constructed: `Valid`
Nov 27 19:45:16.301 INFO [stderr]   --> src/lib.rs:15:5
Nov 27 19:45:16.301 INFO [stderr]    |
Nov 27 19:45:16.301 INFO [stderr] 15 |     pub struct Valid <A : Testable> (A);
Nov 27 19:45:16.301 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:45:16.301 INFO [stderr]    |
Nov 27 19:45:16.301 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 27 19:45:16.301 INFO [stderr] 
Nov 27 19:45:16.301 INFO [stderr] warning: struct is never constructed: `Invalid`
Nov 27 19:45:16.301 INFO [stderr]   --> src/lib.rs:16:5
Nov 27 19:45:16.301 INFO [stderr]    |
Nov 27 19:45:16.301 INFO [stderr] 16 |     pub struct Invalid <A : Testable> (A);
Nov 27 19:45:16.301 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:45:16.301 INFO [stderr] 
Nov 27 19:45:16.301 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 19:45:16.301 INFO [stderr]  --> src/lib.rs:1:12
Nov 27 19:45:16.301 INFO [stderr]   |
Nov 27 19:45:16.301 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Nov 27 19:45:16.301 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:45:16.301 INFO [stderr]   |
Nov 27 19:45:16.301 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 27 19:45:16.301 INFO [stderr] 
Nov 27 19:45:16.305 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 19:45:16.305 INFO [stderr]  --> src/lib.rs:2:12
Nov 27 19:45:16.305 INFO [stderr]   |
Nov 27 19:45:16.305 INFO [stderr] 2 | #![feature(iterator_step_by)]
Nov 27 19:45:16.305 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 27 19:45:16.305 INFO [stderr] 
Nov 27 19:45:16.344 INFO [stderr] warning: unknown lint: `unused_import`
Nov 27 19:45:16.344 INFO [stderr]  --> src/main.rs:5:9
Nov 27 19:45:16.345 INFO [stderr]   |
Nov 27 19:45:16.345 INFO [stderr] 5 | #[allow(unused_import)]
Nov 27 19:45:16.345 INFO [stderr]   |         ^^^^^^^^^^^^^
Nov 27 19:45:16.345 INFO [stderr]   |
Nov 27 19:45:16.345 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 27 19:45:16.345 INFO [stderr] 
Nov 27 19:45:16.345 INFO [stderr] warning: unknown lint: `unused_import`
Nov 27 19:45:16.345 INFO [stderr]  --> src/main.rs:5:9
Nov 27 19:45:16.345 INFO [stderr]   |
Nov 27 19:45:16.345 INFO [stderr] 5 | #[allow(unused_import)]
Nov 27 19:45:16.345 INFO [stderr]   |         ^^^^^^^^^^^^^
Nov 27 19:45:16.345 INFO [stderr]   |
Nov 27 19:45:16.345 INFO [stderr]   = note: #[warn(unknown_lints)] on by default
Nov 27 19:45:16.345 INFO [stderr] 
Nov 27 19:45:16.604 INFO [stderr] warning: unused `#[macro_use]` import
Nov 27 19:45:16.605 INFO [stderr]  --> src/main.rs:3:1
Nov 27 19:45:16.606 INFO [stderr]   |
Nov 27 19:45:16.607 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Nov 27 19:45:16.607 INFO [stderr]   | ^^^^^^^^^^^^
Nov 27 19:45:16.616 INFO [stderr]   |
Nov 27 19:45:16.618 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 19:45:16.618 INFO [stderr] 
Nov 27 19:45:16.636 INFO [stderr] warning: unused `#[macro_use]` import
Nov 27 19:45:16.636 INFO [stderr]  --> src/main.rs:3:1
Nov 27 19:45:16.637 INFO [stderr]   |
Nov 27 19:45:16.638 INFO [stderr] 3 | #[macro_use] extern crate itertools;
Nov 27 19:45:16.638 INFO [stderr]   | ^^^^^^^^^^^^
Nov 27 19:45:16.652 INFO [stderr]   |
Nov 27 19:45:16.652 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 27 19:45:16.652 INFO [stderr] 
Nov 27 19:45:16.996 INFO [stderr] warning: value assigned to `triangular_num` is never read
Nov 27 19:45:16.996 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Nov 27 19:45:16.996 INFO [stderr]   |
Nov 27 19:45:16.996 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Nov 27 19:45:16.996 INFO [stderr]   |             ^^^^^^^^^^^^^^
Nov 27 19:45:16.996 INFO [stderr]   |
Nov 27 19:45:16.996 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 27 19:45:16.996 INFO [stderr] 
Nov 27 19:45:17.015 INFO [stderr] warning: value assigned to `triangular_num` is never read
Nov 27 19:45:17.016 INFO [stderr]  --> src/eulers/twelve.rs:6:13
Nov 27 19:45:17.016 INFO [stderr]   |
Nov 27 19:45:17.016 INFO [stderr] 6 |     let mut triangular_num = Some(6);
Nov 27 19:45:17.016 INFO [stderr]   |             ^^^^^^^^^^^^^^
Nov 27 19:45:17.028 INFO [stderr]   |
Nov 27 19:45:17.028 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Nov 27 19:45:17.028 INFO [stderr] 
Nov 27 19:45:17.095 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 19:45:17.095 INFO [stderr]  --> src/main.rs:1:12
Nov 27 19:45:17.095 INFO [stderr]   |
Nov 27 19:45:17.095 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Nov 27 19:45:17.095 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:45:17.108 INFO [stderr]   |
Nov 27 19:45:17.108 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 27 19:45:17.109 INFO [stderr] 
Nov 27 19:45:17.109 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 19:45:17.109 INFO [stderr]  --> src/main.rs:2:12
Nov 27 19:45:17.109 INFO [stderr]   |
Nov 27 19:45:17.109 INFO [stderr] 2 | #![feature(iterator_step_by)]
Nov 27 19:45:17.109 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 27 19:45:17.109 INFO [stderr] 
Nov 27 19:45:17.120 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 19:45:17.120 INFO [stderr]  --> src/main.rs:1:12
Nov 27 19:45:17.120 INFO [stderr]   |
Nov 27 19:45:17.120 INFO [stderr] 1 | #![feature(inclusive_range_syntax)]
Nov 27 19:45:17.120 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Nov 27 19:45:17.120 INFO [stderr]   |
Nov 27 19:45:17.120 INFO [stderr]   = note: #[warn(stable_features)] on by default
Nov 27 19:45:17.120 INFO [stderr] 
Nov 27 19:45:17.120 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 19:45:17.120 INFO [stderr]  --> src/main.rs:2:12
Nov 27 19:45:17.120 INFO [stderr]   |
Nov 27 19:45:17.120 INFO [stderr] 2 | #![feature(iterator_step_by)]
Nov 27 19:45:17.120 INFO [stderr]   |            ^^^^^^^^^^^^^^^^
Nov 27 19:45:17.120 INFO [stderr] 
Nov 27 19:45:17.177 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.76s
Nov 27 19:45:17.189 INFO [stderr] su: No module specific data is present
Nov 27 19:45:18.860 INFO running `"docker" "inspect" "dade6aa6abf1f1e392c4a529ab1d8e8fa27950c4f21f736ec71758b12cb55c7a"`
Nov 27 19:45:19.326 INFO running `"docker" "rm" "-f" "dade6aa6abf1f1e392c4a529ab1d8e8fa27950c4f21f736ec71758b12cb55c7a"`
Nov 27 19:45:19.697 INFO [stdout] dade6aa6abf1f1e392c4a529ab1d8e8fa27950c4f21f736ec71758b12cb55c7a