[INFO] fetching crate combinations 0.1.0...
[INFO] testing combinations-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate combinations 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate combinations 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 combinations 0.1.0
[INFO] finished tweaking crates.io crate combinations 0.1.0
[INFO] tweaked toml for crates.io crate combinations 0.1.0 written to /workspace/builds/worker-0/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d8c398d54a21d218bf8d4498bc5eb7dfd4f5285e9dbedb4dfbf6c9b494d5f66
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6d8c398d54a21d218bf8d4498bc5eb7dfd4f5285e9dbedb4dfbf6c9b494d5f66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d8c398d54a21d218bf8d4498bc5eb7dfd4f5285e9dbedb4dfbf6c9b494d5f66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d8c398d54a21d218bf8d4498bc5eb7dfd4f5285e9dbedb4dfbf6c9b494d5f66", kill_on_drop: false }`
[INFO] [stdout] 6d8c398d54a21d218bf8d4498bc5eb7dfd4f5285e9dbedb4dfbf6c9b494d5f66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3bf04a32c17733b70a1ddba59aad792923d89c1c8bc1a01fee88a34f660dba2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a3bf04a32c17733b70a1ddba59aad792923d89c1c8bc1a01fee88a34f660dba2", kill_on_drop: false }`
[INFO] [stderr]    Compiling combinations v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "a3bf04a32c17733b70a1ddba59aad792923d89c1c8bc1a01fee88a34f660dba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3bf04a32c17733b70a1ddba59aad792923d89c1c8bc1a01fee88a34f660dba2", kill_on_drop: false }`
[INFO] [stdout] a3bf04a32c17733b70a1ddba59aad792923d89c1c8bc1a01fee88a34f660dba2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7d87a59279b7758a8a4c9607cafdcd205c985259997b96f948948492753fca52
[INFO] running `Command { std: "docker" "start" "-a" "7d87a59279b7758a8a4c9607cafdcd205c985259997b96f948948492753fca52", kill_on_drop: false }`
[INFO] [stderr]    Compiling combinations v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/combinations-bfa7dd197de745ce)
[INFO] running `Command { std: "docker" "inspect" "7d87a59279b7758a8a4c9607cafdcd205c985259997b96f948948492753fca52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d87a59279b7758a8a4c9607cafdcd205c985259997b96f948948492753fca52", kill_on_drop: false }`
[INFO] [stdout] 7d87a59279b7758a8a4c9607cafdcd205c985259997b96f948948492753fca52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9c4120b68991a4233dfc7da2fe3c628bba66a428e067d1ad713a0a30a16eb1e5
[INFO] running `Command { std: "docker" "start" "-a" "9c4120b68991a4233dfc7da2fe3c628bba66a428e067d1ad713a0a30a16eb1e5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/combinations-bfa7dd197de745ce)
[INFO] [stdout] running 3 tests
[INFO] [stderr]    Doc-tests combinations
[INFO] [stdout] test tests::equals ... ok
[INFO] [stdout] test tests::t_123 ... ok
[INFO] [stdout] test tests::complicated ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Combinations<T>::new (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.69s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9c4120b68991a4233dfc7da2fe3c628bba66a428e067d1ad713a0a30a16eb1e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c4120b68991a4233dfc7da2fe3c628bba66a428e067d1ad713a0a30a16eb1e5", kill_on_drop: false }`
[INFO] [stdout] 9c4120b68991a4233dfc7da2fe3c628bba66a428e067d1ad713a0a30a16eb1e5