[INFO] fetching crate superposition 0.1.0...
[INFO] testing superposition-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate superposition 0.1.0 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate superposition 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate superposition 0.1.0
[INFO] finished tweaking crates.io crate superposition 0.1.0
[INFO] tweaked toml for crates.io crate superposition 0.1.0 written to /workspace/builds/worker-43/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80edff11de224e51a1c822547b06f9063ad41c05e4f443551110e0f96d6bcedd
[INFO] running `Command { std: "docker" "start" "-a" "80edff11de224e51a1c822547b06f9063ad41c05e4f443551110e0f96d6bcedd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80edff11de224e51a1c822547b06f9063ad41c05e4f443551110e0f96d6bcedd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80edff11de224e51a1c822547b06f9063ad41c05e4f443551110e0f96d6bcedd", kill_on_drop: false }`
[INFO] [stdout] 80edff11de224e51a1c822547b06f9063ad41c05e4f443551110e0f96d6bcedd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 530d1a97a9d1c7c6e06e24b83a04067ce3e5977e775f1d7c75f10787207f92c2
[INFO] running `Command { std: "docker" "start" "-a" "530d1a97a9d1c7c6e06e24b83a04067ce3e5977e775f1d7c75f10787207f92c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling superposition v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "530d1a97a9d1c7c6e06e24b83a04067ce3e5977e775f1d7c75f10787207f92c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "530d1a97a9d1c7c6e06e24b83a04067ce3e5977e775f1d7c75f10787207f92c2", kill_on_drop: false }`
[INFO] [stdout] 530d1a97a9d1c7c6e06e24b83a04067ce3e5977e775f1d7c75f10787207f92c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef2deb63f0ee0e432730372b74962ede8c20ee53947a591912f90d543c14e92f
[INFO] running `Command { std: "docker" "start" "-a" "ef2deb63f0ee0e432730372b74962ede8c20ee53947a591912f90d543c14e92f", kill_on_drop: false }`
[INFO] [stderr]    Compiling superposition v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "ef2deb63f0ee0e432730372b74962ede8c20ee53947a591912f90d543c14e92f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef2deb63f0ee0e432730372b74962ede8c20ee53947a591912f90d543c14e92f", kill_on_drop: false }`
[INFO] [stdout] ef2deb63f0ee0e432730372b74962ede8c20ee53947a591912f90d543c14e92f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2bf7ff663e5861c4dc9bece992d130be1994e0bbcb05cc324b9fdcc364c9d54c
[INFO] running `Command { std: "docker" "start" "-a" "2bf7ff663e5861c4dc9bece992d130be1994e0bbcb05cc324b9fdcc364c9d54c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/superposition-4a67d36f4d3db711)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests superposition
[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" "2bf7ff663e5861c4dc9bece992d130be1994e0bbcb05cc324b9fdcc364c9d54c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bf7ff663e5861c4dc9bece992d130be1994e0bbcb05cc324b9fdcc364c9d54c", kill_on_drop: false }`
[INFO] [stdout] 2bf7ff663e5861c4dc9bece992d130be1994e0bbcb05cc324b9fdcc364c9d54c