[INFO] fetching crate siphon 0.0.1...
[INFO] testing siphon-0.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate siphon 0.0.1 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate siphon 0.0.1 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 siphon 0.0.1
[INFO] finished tweaking crates.io crate siphon 0.0.1
[INFO] tweaked toml for crates.io crate siphon 0.0.1 written to /workspace/builds/worker-37/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] ee4c961f7fe9b8a59dd3c9cb3ffc2f96eb1405fa6568f194f06a415b9202a2c8
[INFO] running `Command { std: "docker" "start" "-a" "ee4c961f7fe9b8a59dd3c9cb3ffc2f96eb1405fa6568f194f06a415b9202a2c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee4c961f7fe9b8a59dd3c9cb3ffc2f96eb1405fa6568f194f06a415b9202a2c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee4c961f7fe9b8a59dd3c9cb3ffc2f96eb1405fa6568f194f06a415b9202a2c8", kill_on_drop: false }`
[INFO] [stdout] ee4c961f7fe9b8a59dd3c9cb3ffc2f96eb1405fa6568f194f06a415b9202a2c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 16b3588acf5a2ff06175312a4337b8b6ba5694084bcdb2dab14498c3ed64edcd
[INFO] running `Command { std: "docker" "start" "-a" "16b3588acf5a2ff06175312a4337b8b6ba5694084bcdb2dab14498c3ed64edcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling siphon v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "16b3588acf5a2ff06175312a4337b8b6ba5694084bcdb2dab14498c3ed64edcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16b3588acf5a2ff06175312a4337b8b6ba5694084bcdb2dab14498c3ed64edcd", kill_on_drop: false }`
[INFO] [stdout] 16b3588acf5a2ff06175312a4337b8b6ba5694084bcdb2dab14498c3ed64edcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] defff96a7b889f8082dcf0c3f0a4711f9e40ca7da5087c4728066dd23f98bce9
[INFO] running `Command { std: "docker" "start" "-a" "defff96a7b889f8082dcf0c3f0a4711f9e40ca7da5087c4728066dd23f98bce9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling siphon v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "defff96a7b889f8082dcf0c3f0a4711f9e40ca7da5087c4728066dd23f98bce9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "defff96a7b889f8082dcf0c3f0a4711f9e40ca7da5087c4728066dd23f98bce9", kill_on_drop: false }`
[INFO] [stdout] defff96a7b889f8082dcf0c3f0a4711f9e40ca7da5087c4728066dd23f98bce9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 514a5569184c59e88675560c477a7b82f65e3831c17e3d14cf1a4d99e677159b
[INFO] running `Command { std: "docker" "start" "-a" "514a5569184c59e88675560c477a7b82f65e3831c17e3d14cf1a4d99e677159b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/siphon-65ee7947bd496862)
[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" "514a5569184c59e88675560c477a7b82f65e3831c17e3d14cf1a4d99e677159b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "514a5569184c59e88675560c477a7b82f65e3831c17e3d14cf1a4d99e677159b", kill_on_drop: false }`
[INFO] [stdout] 514a5569184c59e88675560c477a7b82f65e3831c17e3d14cf1a4d99e677159b