[INFO] updating cached repository SolraBizna/enthunter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SolraBizna/enthunter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SolraBizna/enthunter" "work/ex/beta-1.38-1/sources/1.37.0/gh/SolraBizna/enthunter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/SolraBizna/enthunter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SolraBizna/enthunter" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SolraBizna/enthunter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SolraBizna/enthunter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6e3909f22463167b26b8014cb1e121e8bd170604
[INFO] sha for GitHub repo SolraBizna/enthunter: 6e3909f22463167b26b8014cb1e121e8bd170604
[INFO] validating manifest of SolraBizna/enthunter on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of SolraBizna/enthunter on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing SolraBizna/enthunter
[INFO] finished frobbing SolraBizna/enthunter
[INFO] frobbed toml for SolraBizna/enthunter written to work/ex/beta-1.38-1/sources/1.37.0/gh/SolraBizna/enthunter/Cargo.toml
[INFO] started frobbing SolraBizna/enthunter
[INFO] finished frobbing SolraBizna/enthunter
[INFO] frobbed toml for SolraBizna/enthunter written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/SolraBizna/enthunter/Cargo.toml
[INFO] crate SolraBizna/enthunter already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing SolraBizna/enthunter against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SolraBizna/enthunter:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 4e586c5dfd4bd6f4ceeda5f2a92e9044d62a1441657a2fc845e78d352e23ed6e
[INFO] running `"docker" "start" "-a" "4e586c5dfd4bd6f4ceeda5f2a92e9044d62a1441657a2fc845e78d352e23ed6e"`
[INFO] [stderr]    Compiling enthunter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:107:25
[INFO] [stderr]     |
[INFO] [stderr] 107 |                         dirty_tx.send(Err(e)).is_ok();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:118:29
[INFO] [stderr]     |
[INFO] [stderr] 118 |                             dirty_tx.send(Err(io::Error::new(io::ErrorKind::Other, e))).is_ok();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:127:21
[INFO] [stderr]     |
[INFO] [stderr] 127 |                     dirty_tx.send(Ok(v)).is_ok();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:133:17
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 dirty_tx.send(Ok(v)).is_ok();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         stream_a.clean_tx.send(a).is_ok();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         stream_b.clean_tx.send(b).is_ok();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `"docker" "inspect" "4e586c5dfd4bd6f4ceeda5f2a92e9044d62a1441657a2fc845e78d352e23ed6e"`
[INFO] running `"docker" "rm" "-f" "4e586c5dfd4bd6f4ceeda5f2a92e9044d62a1441657a2fc845e78d352e23ed6e"`
[INFO] [stdout] 4e586c5dfd4bd6f4ceeda5f2a92e9044d62a1441657a2fc845e78d352e23ed6e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SolraBizna/enthunter:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] dbf9cb57c3d11db723ca7e4c5612adc3ac43008ba974aa5ec90365b8b68766fa
[INFO] running `"docker" "start" "-a" "dbf9cb57c3d11db723ca7e4c5612adc3ac43008ba974aa5ec90365b8b68766fa"`
[INFO] [stderr]    Compiling enthunter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:107:25
[INFO] [stderr]     |
[INFO] [stderr] 107 |                         dirty_tx.send(Err(e)).is_ok();
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:118:29
[INFO] [stderr]     |
[INFO] [stderr] 118 |                             dirty_tx.send(Err(io::Error::new(io::ErrorKind::Other, e))).is_ok();
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:127:21
[INFO] [stderr]     |
[INFO] [stderr] 127 |                     dirty_tx.send(Ok(v)).is_ok();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:133:17
[INFO] [stderr]     |
[INFO] [stderr] 133 |                 dirty_tx.send(Ok(v)).is_ok();
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:169:9
[INFO] [stderr]     |
[INFO] [stderr] 169 |         stream_a.clean_tx.send(a).is_ok();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:170:9
[INFO] [stderr]     |
[INFO] [stderr] 170 |         stream_b.clean_tx.send(b).is_ok();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `"docker" "inspect" "dbf9cb57c3d11db723ca7e4c5612adc3ac43008ba974aa5ec90365b8b68766fa"`
[INFO] running `"docker" "rm" "-f" "dbf9cb57c3d11db723ca7e4c5612adc3ac43008ba974aa5ec90365b8b68766fa"`
[INFO] [stdout] dbf9cb57c3d11db723ca7e4c5612adc3ac43008ba974aa5ec90365b8b68766fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/SolraBizna/enthunter:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 993c82052041009fcaf2e573e10dac4ffe4df65b2543684966ec30df2539debc
[INFO] running `"docker" "start" "-a" "993c82052041009fcaf2e573e10dac4ffe4df65b2543684966ec30df2539debc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/enthunter-0c1f5e3d8b5ab926
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::simple_entropies ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/enthunter-108564f1ae72af2e
[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 enthunter
[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" "993c82052041009fcaf2e573e10dac4ffe4df65b2543684966ec30df2539debc"`
[INFO] running `"docker" "rm" "-f" "993c82052041009fcaf2e573e10dac4ffe4df65b2543684966ec30df2539debc"`
[INFO] [stdout] 993c82052041009fcaf2e573e10dac4ffe4df65b2543684966ec30df2539debc