[INFO] fetching crate hosts 0.0.0-alpha.0...
[INFO] testing hosts-0.0.0-alpha.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate hosts 0.0.0-alpha.0 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate hosts 0.0.0-alpha.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 hosts 0.0.0-alpha.0
[INFO] finished tweaking crates.io crate hosts 0.0.0-alpha.0
[INFO] tweaked toml for crates.io crate hosts 0.0.0-alpha.0 written to /workspace/builds/worker-27/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] ca7fc63abc1ff358e33796c4cad42f51ffa4a949b65dc94b1ce69a402d9bcee1
[INFO] running `Command { std: "docker" "start" "-a" "ca7fc63abc1ff358e33796c4cad42f51ffa4a949b65dc94b1ce69a402d9bcee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca7fc63abc1ff358e33796c4cad42f51ffa4a949b65dc94b1ce69a402d9bcee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca7fc63abc1ff358e33796c4cad42f51ffa4a949b65dc94b1ce69a402d9bcee1", kill_on_drop: false }`
[INFO] [stdout] ca7fc63abc1ff358e33796c4cad42f51ffa4a949b65dc94b1ce69a402d9bcee1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 71ab2b5222a209ce0555e03636c987a5ee27f25e80a8207a1c19844b44703b93
[INFO] running `Command { std: "docker" "start" "-a" "71ab2b5222a209ce0555e03636c987a5ee27f25e80a8207a1c19844b44703b93", kill_on_drop: false }`
[INFO] [stderr]    Compiling hosts v0.0.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "71ab2b5222a209ce0555e03636c987a5ee27f25e80a8207a1c19844b44703b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71ab2b5222a209ce0555e03636c987a5ee27f25e80a8207a1c19844b44703b93", kill_on_drop: false }`
[INFO] [stdout] 71ab2b5222a209ce0555e03636c987a5ee27f25e80a8207a1c19844b44703b93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 6990dc646c5469171f2cdd73a213e7474c0f140f459f34e733882731a5905a95
[INFO] running `Command { std: "docker" "start" "-a" "6990dc646c5469171f2cdd73a213e7474c0f140f459f34e733882731a5905a95", kill_on_drop: false }`
[INFO] [stderr]    Compiling hosts v0.0.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "6990dc646c5469171f2cdd73a213e7474c0f140f459f34e733882731a5905a95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6990dc646c5469171f2cdd73a213e7474c0f140f459f34e733882731a5905a95", kill_on_drop: false }`
[INFO] [stdout] 6990dc646c5469171f2cdd73a213e7474c0f140f459f34e733882731a5905a95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 39a3416a0c05456cf3d64d1a2b01d29199ed35b3bf2fc61cb14ba603947afc79
[INFO] running `Command { std: "docker" "start" "-a" "39a3416a0c05456cf3d64d1a2b01d29199ed35b3bf2fc61cb14ba603947afc79", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hosts-e566db589852059c)
[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" "39a3416a0c05456cf3d64d1a2b01d29199ed35b3bf2fc61cb14ba603947afc79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39a3416a0c05456cf3d64d1a2b01d29199ed35b3bf2fc61cb14ba603947afc79", kill_on_drop: false }`
[INFO] [stdout] 39a3416a0c05456cf3d64d1a2b01d29199ed35b3bf2fc61cb14ba603947afc79