[INFO] fetching crate hosts 0.0.0-alpha.0...
[INFO] testing hosts-0.0.0-alpha.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate hosts 0.0.0-alpha.0 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate hosts 0.0.0-alpha.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 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-52/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-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 625a88153c7f308ef02fe75dfbee4e559aa0b3584fa417dbe496574b201fb7ed
[INFO] running `Command { std: "docker" "start" "-a" "625a88153c7f308ef02fe75dfbee4e559aa0b3584fa417dbe496574b201fb7ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "625a88153c7f308ef02fe75dfbee4e559aa0b3584fa417dbe496574b201fb7ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625a88153c7f308ef02fe75dfbee4e559aa0b3584fa417dbe496574b201fb7ed", kill_on_drop: false }`
[INFO] [stdout] 625a88153c7f308ef02fe75dfbee4e559aa0b3584fa417dbe496574b201fb7ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 48cc98d4bf57878d5c5ddc45b5eaf560566dd27413cf578b2e18805b9a030b6c
[INFO] running `Command { std: "docker" "start" "-a" "48cc98d4bf57878d5c5ddc45b5eaf560566dd27413cf578b2e18805b9a030b6c", 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 0.31s
[INFO] running `Command { std: "docker" "inspect" "48cc98d4bf57878d5c5ddc45b5eaf560566dd27413cf578b2e18805b9a030b6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48cc98d4bf57878d5c5ddc45b5eaf560566dd27413cf578b2e18805b9a030b6c", kill_on_drop: false }`
[INFO] [stdout] 48cc98d4bf57878d5c5ddc45b5eaf560566dd27413cf578b2e18805b9a030b6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] e4ae89cdc2ee70bbe9efca3994aed28b815238b926c20aa5cf2a6de90471da58
[INFO] running `Command { std: "docker" "start" "-a" "e4ae89cdc2ee70bbe9efca3994aed28b815238b926c20aa5cf2a6de90471da58", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hosts v0.0.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "e4ae89cdc2ee70bbe9efca3994aed28b815238b926c20aa5cf2a6de90471da58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4ae89cdc2ee70bbe9efca3994aed28b815238b926c20aa5cf2a6de90471da58", kill_on_drop: false }`
[INFO] [stdout] e4ae89cdc2ee70bbe9efca3994aed28b815238b926c20aa5cf2a6de90471da58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 88e80336c7ede2e7eccc99097e57f9e119500f86db6bc5fa21664cc181d85464
[INFO] running `Command { std: "docker" "start" "-a" "88e80336c7ede2e7eccc99097e57f9e119500f86db6bc5fa21664cc181d85464", 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-6b4c970faccbcc4a)
[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" "88e80336c7ede2e7eccc99097e57f9e119500f86db6bc5fa21664cc181d85464", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88e80336c7ede2e7eccc99097e57f9e119500f86db6bc5fa21664cc181d85464", kill_on_drop: false }`
[INFO] [stdout] 88e80336c7ede2e7eccc99097e57f9e119500f86db6bc5fa21664cc181d85464