[INFO] fetching crate rust_combinatorics 0.1.0...
[INFO] testing rust_combinatorics-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate rust_combinatorics 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rust_combinatorics 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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 /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3c63039689ec8d68419ff8d1fac3b51dc9eeeeef5381cc4b0f93ba61822d040
[INFO] running `Command { std: "docker" "start" "-a" "b3c63039689ec8d68419ff8d1fac3b51dc9eeeeef5381cc4b0f93ba61822d040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3c63039689ec8d68419ff8d1fac3b51dc9eeeeef5381cc4b0f93ba61822d040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3c63039689ec8d68419ff8d1fac3b51dc9eeeeef5381cc4b0f93ba61822d040", kill_on_drop: false }`
[INFO] [stdout] b3c63039689ec8d68419ff8d1fac3b51dc9eeeeef5381cc4b0f93ba61822d040
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a1a81b6f1ed95a59397ea43a294ed998dc43694ad479936d2a497e7378ab8b9
[INFO] running `Command { std: "docker" "start" "-a" "4a1a81b6f1ed95a59397ea43a294ed998dc43694ad479936d2a497e7378ab8b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_combinatorics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "4a1a81b6f1ed95a59397ea43a294ed998dc43694ad479936d2a497e7378ab8b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a1a81b6f1ed95a59397ea43a294ed998dc43694ad479936d2a497e7378ab8b9", kill_on_drop: false }`
[INFO] [stdout] 4a1a81b6f1ed95a59397ea43a294ed998dc43694ad479936d2a497e7378ab8b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81e2d7ab037ff4cca3b4e644a9d1c56f6f1788ad5ac3832f98f4abf992c5558a
[INFO] running `Command { std: "docker" "start" "-a" "81e2d7ab037ff4cca3b4e644a9d1c56f6f1788ad5ac3832f98f4abf992c5558a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_combinatorics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_combinatorics-01146a6cfc86774f)
[INFO] running `Command { std: "docker" "inspect" "81e2d7ab037ff4cca3b4e644a9d1c56f6f1788ad5ac3832f98f4abf992c5558a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81e2d7ab037ff4cca3b4e644a9d1c56f6f1788ad5ac3832f98f4abf992c5558a", kill_on_drop: false }`
[INFO] [stdout] 81e2d7ab037ff4cca3b4e644a9d1c56f6f1788ad5ac3832f98f4abf992c5558a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8801dfd36817d77b593ac017aff6d596b90bbd88f5c4c1c083271b588b291d20
[INFO] running `Command { std: "docker" "start" "-a" "8801dfd36817d77b593ac017aff6d596b90bbd88f5c4c1c083271b588b291d20", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_combinatorics-01146a6cfc86774f)
[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_each_item_when_choosing_one_from_a_list_with_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_the_empty_vector_when_choosing_zero_from_an_empty_list ... ok
[INFO] [stdout] test combinatorics::binomial::tests::it_returns_the_empty_vector_when_choosing_zero_from_a_list_with_elements ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8801dfd36817d77b593ac017aff6d596b90bbd88f5c4c1c083271b588b291d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8801dfd36817d77b593ac017aff6d596b90bbd88f5c4c1c083271b588b291d20", kill_on_drop: false }`
[INFO] [stdout] 8801dfd36817d77b593ac017aff6d596b90bbd88f5c4c1c083271b588b291d20