[INFO] fetching crate rust_combinatorics 0.1.0...
[INFO] testing rust_combinatorics-0.1.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate rust_combinatorics 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate rust_combinatorics 0.1.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 516d3b983fc3bafcdc848a36593df8b68b03c55899a95c5a5e497e7f1d7b8926
[INFO] running `Command { std: "docker" "start" "-a" "516d3b983fc3bafcdc848a36593df8b68b03c55899a95c5a5e497e7f1d7b8926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "516d3b983fc3bafcdc848a36593df8b68b03c55899a95c5a5e497e7f1d7b8926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "516d3b983fc3bafcdc848a36593df8b68b03c55899a95c5a5e497e7f1d7b8926", kill_on_drop: false }`
[INFO] [stdout] 516d3b983fc3bafcdc848a36593df8b68b03c55899a95c5a5e497e7f1d7b8926
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02a24beba5326f83b4ecbc35a712f509153fa654ad645a3602be52d88cf4b539
[INFO] running `Command { std: "docker" "start" "-a" "02a24beba5326f83b4ecbc35a712f509153fa654ad645a3602be52d88cf4b539", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_combinatorics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "02a24beba5326f83b4ecbc35a712f509153fa654ad645a3602be52d88cf4b539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a24beba5326f83b4ecbc35a712f509153fa654ad645a3602be52d88cf4b539", kill_on_drop: false }`
[INFO] [stdout] 02a24beba5326f83b4ecbc35a712f509153fa654ad645a3602be52d88cf4b539
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06d10db65c2678a026519cda295b410a34d8b2add60d4e5d1e4e925463204510
[INFO] running `Command { std: "docker" "start" "-a" "06d10db65c2678a026519cda295b410a34d8b2add60d4e5d1e4e925463204510", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_combinatorics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "06d10db65c2678a026519cda295b410a34d8b2add60d4e5d1e4e925463204510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06d10db65c2678a026519cda295b410a34d8b2add60d4e5d1e4e925463204510", kill_on_drop: false }`
[INFO] [stdout] 06d10db65c2678a026519cda295b410a34d8b2add60d4e5d1e4e925463204510
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7af3e11ae3ca741398e1b6425dd256ccfb9f0bbac1b77ed822398340d1a7447d
[INFO] running `Command { std: "docker" "start" "-a" "7af3e11ae3ca741398e1b6425dd256ccfb9f0bbac1b77ed822398340d1a7447d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_combinatorics-2ca11311fc07b09e)
[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_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; 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" "7af3e11ae3ca741398e1b6425dd256ccfb9f0bbac1b77ed822398340d1a7447d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7af3e11ae3ca741398e1b6425dd256ccfb9f0bbac1b77ed822398340d1a7447d", kill_on_drop: false }`
[INFO] [stdout] 7af3e11ae3ca741398e1b6425dd256ccfb9f0bbac1b77ed822398340d1a7447d
