[INFO] crate rust_combinatorics 0.1.0 is already in cache
[INFO] testing rust_combinatorics-0.1.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate rust_combinatorics 0.1.0 into work/builds/worker-5/source
[INFO] validating manifest of crates.io crate rust_combinatorics 0.1.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rust_combinatorics 0.1.0
[INFO] finished tweaking crates.io crate rust_combinatorics 0.1.0
[INFO] tweaked toml for crates.io crate rust_combinatorics 0.1.0 written to work/builds/worker-5/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 488c0925e96848fdca672eb723a603054c5d4fb2ddd2af956601d5d116f926b1
[INFO] running `"docker" "start" "-a" "488c0925e96848fdca672eb723a603054c5d4fb2ddd2af956601d5d116f926b1"`
[INFO] [stderr]    Compiling rust_combinatorics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `"docker" "inspect" "488c0925e96848fdca672eb723a603054c5d4fb2ddd2af956601d5d116f926b1"`
[INFO] running `"docker" "rm" "-f" "488c0925e96848fdca672eb723a603054c5d4fb2ddd2af956601d5d116f926b1"`
[INFO] [stdout] 488c0925e96848fdca672eb723a603054c5d4fb2ddd2af956601d5d116f926b1
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] b1e36787364ae6490784b582e92c0316937883a45bd1b99958dd498be0039f33
[INFO] running `"docker" "start" "-a" "b1e36787364ae6490784b582e92c0316937883a45bd1b99958dd498be0039f33"`
[INFO] [stderr]    Compiling rust_combinatorics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "b1e36787364ae6490784b582e92c0316937883a45bd1b99958dd498be0039f33"`
[INFO] running `"docker" "rm" "-f" "b1e36787364ae6490784b582e92c0316937883a45bd1b99958dd498be0039f33"`
[INFO] [stdout] b1e36787364ae6490784b582e92c0316937883a45bd1b99958dd498be0039f33
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] e3be532651c2264aff4c5afc1ea7ff849626f334f94c28bab341aa6843b74cb3
[INFO] running `"docker" "start" "-a" "e3be532651c2264aff4c5afc1ea7ff849626f334f94c28bab341aa6843b74cb3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_combinatorics-6fdd7771c183ceed
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test combinatorics::binomial::tests::it_returns_each_item_combination_when_choosing_two_from_a_list_with_items ... ok
[INFO] [stdout] test combinatorics::binomial::tests::it_returns_each_item_combination_when_choosing_two_from_a_list_with_five_items ... ok
[INFO] [stdout] test combinatorics::binomial::tests::it_returns_none_when_choosing_one_from_an_empty_list ... ok
[INFO] [stdout] test combinatorics::binomial::tests::it_returns_each_item_when_choosing_one_from_a_list_with_items ... ok
[INFO] [stdout] test combinatorics::binomial::tests::it_returns_the_empty_vector_when_choosing_zero_from_a_list_with_elements ... ok
[INFO] [stdout] test combinatorics::binomial::tests::it_returns_the_empty_vector_when_choosing_zero_from_an_empty_list ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_combinatorics
[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" "e3be532651c2264aff4c5afc1ea7ff849626f334f94c28bab341aa6843b74cb3"`
[INFO] running `"docker" "rm" "-f" "e3be532651c2264aff4c5afc1ea7ff849626f334f94c28bab341aa6843b74cb3"`
[INFO] [stdout] e3be532651c2264aff4c5afc1ea7ff849626f334f94c28bab341aa6843b74cb3