[INFO] fetching crate gen-combinations 0.1.0...
[INFO] testing gen-combinations-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate gen-combinations 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate gen-combinations 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gen-combinations 0.1.0
[INFO] finished tweaking crates.io crate gen-combinations 0.1.0
[INFO] tweaked toml for crates.io crate gen-combinations 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5a25d510b22511c265d3ba74a7fd7689089bb630f3fcaeeaf44b60b1dd73d0f
[INFO] running `Command { std: "docker" "start" "-a" "f5a25d510b22511c265d3ba74a7fd7689089bb630f3fcaeeaf44b60b1dd73d0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5a25d510b22511c265d3ba74a7fd7689089bb630f3fcaeeaf44b60b1dd73d0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5a25d510b22511c265d3ba74a7fd7689089bb630f3fcaeeaf44b60b1dd73d0f", kill_on_drop: false }`
[INFO] [stdout] f5a25d510b22511c265d3ba74a7fd7689089bb630f3fcaeeaf44b60b1dd73d0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a8b9af11b57eb51b2a51d42f3a99428ad685c87a292cdaf239e2b0942c4dfee
[INFO] running `Command { std: "docker" "start" "-a" "2a8b9af11b57eb51b2a51d42f3a99428ad685c87a292cdaf239e2b0942c4dfee", kill_on_drop: false }`
[INFO] [stderr]    Compiling gen-combinations v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "2a8b9af11b57eb51b2a51d42f3a99428ad685c87a292cdaf239e2b0942c4dfee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a8b9af11b57eb51b2a51d42f3a99428ad685c87a292cdaf239e2b0942c4dfee", kill_on_drop: false }`
[INFO] [stdout] 2a8b9af11b57eb51b2a51d42f3a99428ad685c87a292cdaf239e2b0942c4dfee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4e6333b88026d5b9bbddecb9bc89a24887d8e1ee7a9ea67971105cfede158f8
[INFO] running `Command { std: "docker" "start" "-a" "c4e6333b88026d5b9bbddecb9bc89a24887d8e1ee7a9ea67971105cfede158f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling semver-parser v0.9.0
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling version-sync v0.9.2
[INFO] [stderr]    Compiling gen-combinations v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.60s
[INFO] running `Command { std: "docker" "inspect" "c4e6333b88026d5b9bbddecb9bc89a24887d8e1ee7a9ea67971105cfede158f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4e6333b88026d5b9bbddecb9bc89a24887d8e1ee7a9ea67971105cfede158f8", kill_on_drop: false }`
[INFO] [stdout] c4e6333b88026d5b9bbddecb9bc89a24887d8e1ee7a9ea67971105cfede158f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e059e3b413864d39f1b3b923af489e964a4b47203de4fd61c84899216853fb63
[INFO] running `Command { std: "docker" "start" "-a" "e059e3b413864d39f1b3b923af489e964a4b47203de4fd61c84899216853fb63", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gen_combinations-ce6ee4929e52f785)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test generate_combinations ... ok
[INFO] [stdout] test generate_more_combinations ... ok
[INFO] [stdout] test generate_combinations_of_things_that_arent_copy_just_to_be_sure ... ok
[INFO] [stdout] test misuse_arguments ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/version-numbers.rs (/opt/rustwide/target/debug/deps/version_numbers-35bab261b3d171c3)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_html_root_url ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gen-combinations
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - CombinationIterator (line 18) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e059e3b413864d39f1b3b923af489e964a4b47203de4fd61c84899216853fb63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e059e3b413864d39f1b3b923af489e964a4b47203de4fd61c84899216853fb63", kill_on_drop: false }`
[INFO] [stdout] e059e3b413864d39f1b3b923af489e964a4b47203de4fd61c84899216853fb63