[INFO] cloning repository stephen-lazaro/reuler
[INFO] running `"git" "clone" "--bare" "git://github.com/stephen-lazaro/reuler.git" "work/cache/sources/gh/stephen-lazaro/reuler"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/stephen-lazaro/reuler'...
[INFO] running `"git" "clone" "work/cache/sources/gh/stephen-lazaro/reuler" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/stephen-lazaro/reuler"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/stephen-lazaro/reuler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/stephen-lazaro/reuler" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/stephen-lazaro/reuler"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/stephen-lazaro/reuler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fe82e9aab2bfce29c3107a4d10ed7bae9ae39908
[INFO] sha for GitHub repo stephen-lazaro/reuler: fe82e9aab2bfce29c3107a4d10ed7bae9ae39908
[INFO] validating manifest of stephen-lazaro/reuler on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of stephen-lazaro/reuler on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing stephen-lazaro/reuler
[INFO] finished frobbing stephen-lazaro/reuler
[INFO] frobbed toml for stephen-lazaro/reuler written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/stephen-lazaro/reuler/Cargo.toml
[INFO] started frobbing stephen-lazaro/reuler
[INFO] finished frobbing stephen-lazaro/reuler
[INFO] frobbed toml for stephen-lazaro/reuler written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/stephen-lazaro/reuler/Cargo.toml
[INFO] crate stephen-lazaro/reuler already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.7.3
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing stephen-lazaro/reuler against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/stephen-lazaro/reuler:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] bc580ccd78418e07f75d6676695fe87cc58a48f9e3c1770bd1acba380f2fae38
[INFO] running `"docker" "start" "-a" "bc580ccd78418e07f75d6676695fe87cc58a48f9e3c1770bd1acba380f2fae38"`
[INFO] [stderr]    Compiling itertools v0.7.3
[INFO] [stderr]    Compiling reuler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unknown lint: `unused_import`
[INFO] [stderr]  --> src/lib.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[allow(unused_import)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: did you mean: `unused_imports`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use] extern crate itertools;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `triangular_num` is never read
[INFO] [stderr]  --> src/eulers/twelve.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut triangular_num = Some(6);
[INFO] [stderr]   |             ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]   = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(inclusive_range_syntax)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(iterator_step_by)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `unused_import`
[INFO] [stderr]  --> src/main.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[allow(unused_import)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: did you mean: `unused_imports`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use] extern crate itertools;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `triangular_num` is never read
[INFO] [stderr]  --> src/eulers/twelve.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut triangular_num = Some(6);
[INFO] [stderr]   |             ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]   = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(inclusive_range_syntax)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(iterator_step_by)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.91s
[INFO] running `"docker" "inspect" "bc580ccd78418e07f75d6676695fe87cc58a48f9e3c1770bd1acba380f2fae38"`
[INFO] running `"docker" "rm" "-f" "bc580ccd78418e07f75d6676695fe87cc58a48f9e3c1770bd1acba380f2fae38"`
[INFO] [stdout] bc580ccd78418e07f75d6676695fe87cc58a48f9e3c1770bd1acba380f2fae38
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/stephen-lazaro/reuler:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9a0d2a97e4077e6124a47cb2576dc81deb59e826687ca56b4b172d99c8d85eeb
[INFO] running `"docker" "start" "-a" "9a0d2a97e4077e6124a47cb2576dc81deb59e826687ca56b4b172d99c8d85eeb"`
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling quickcheck v0.3.2
[INFO] [stderr]    Compiling reuler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unknown lint: `unused_import`
[INFO] [stderr]  --> src/main.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[allow(unused_import)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: did you mean: `unused_imports`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `unused_import`
[INFO] [stderr]  --> src/lib.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[allow(unused_import)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: did you mean: `unused_imports`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use] extern crate itertools;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use] extern crate itertools;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `triangular_num` is never read
[INFO] [stderr]  --> src/eulers/twelve.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut triangular_num = Some(6);
[INFO] [stderr]   |             ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]   = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `triangular_num` is never read
[INFO] [stderr]  --> src/eulers/twelve.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut triangular_num = Some(6);
[INFO] [stderr]   |             ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]   = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Valid`
[INFO] [stderr]   --> src/lib.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub struct Valid <A : Testable> (A);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Invalid`
[INFO] [stderr]   --> src/lib.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub struct Invalid <A : Testable> (A);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(inclusive_range_syntax)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(iterator_step_by)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `inclusive_range_syntax` has been stable since 1.26.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(inclusive_range_syntax)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `iterator_step_by` has been stable since 1.28.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(iterator_step_by)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.48s
[INFO] running `"docker" "inspect" "9a0d2a97e4077e6124a47cb2576dc81deb59e826687ca56b4b172d99c8d85eeb"`
[INFO] running `"docker" "rm" "-f" "9a0d2a97e4077e6124a47cb2576dc81deb59e826687ca56b4b172d99c8d85eeb"`
[INFO] [stdout] 9a0d2a97e4077e6124a47cb2576dc81deb59e826687ca56b4b172d99c8d85eeb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/stephen-lazaro/reuler:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"`
[INFO] [stdout] b8c74be9427055beb28f36195c79e039fc48caf5ea1673739d3c12a94dddd648
[INFO] running `"docker" "start" "-a" "b8c74be9427055beb28f36195c79e039fc48caf5ea1673739d3c12a94dddd648"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/reuler-945c45ee4e50af00
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test tests::test_divisor_power ... ok
[INFO] [stdout] test tests::test_digits_1 ... ok
[INFO] [stdout] test tests::test_divisor_power_2 ... ok
[INFO] [stdout] test tests::test_eight ... ok
[INFO] [stdout] test tests::test_digits_2 ... ok
[INFO] [stdout] test tests::test_nine ... ok
[INFO] [stdout] test tests::test_gcd ... ok
[INFO] [stdout] test tests::test_gcd_2 ... ok
[INFO] [stdout] test tests::test_gcd_3 ... ok
[INFO] [stdout] test tests::test_one ... ok
[INFO] [stdout] test tests::test_palindrome_2 ... ok
[INFO] [stdout] test tests::test_palindrome_3 ... ok
[INFO] [stdout] test tests::test_five ... ok
[INFO] [stdout] test tests::test_palindrome_1 ... ok
[INFO] [stdout] test tests::test_six ... ok
[INFO] [stdout] test tests::test_two ... ok
[INFO] [stdout] test tests::test_seven ... ok
[INFO] [stdout] test tests::test_three ... ok
[INFO] [stdout] test tests::test_four ... ok
[INFO] [stdout] test tests::test_ten ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/reuler-1b746f19af52a9ce
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests reuler
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b8c74be9427055beb28f36195c79e039fc48caf5ea1673739d3c12a94dddd648"`
[INFO] running `"docker" "rm" "-f" "b8c74be9427055beb28f36195c79e039fc48caf5ea1673739d3c12a94dddd648"`
[INFO] [stdout] b8c74be9427055beb28f36195c79e039fc48caf5ea1673739d3c12a94dddd648