[INFO] fetching crate var-watcher 0.1.0...
[INFO] testing var-watcher-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate var-watcher 0.1.0 into /workspace/builds/worker-117/source
[INFO] validating manifest of crates.io crate var-watcher 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 var-watcher 0.1.0
[INFO] finished tweaking crates.io crate var-watcher 0.1.0
[INFO] tweaked toml for crates.io crate var-watcher 0.1.0 written to /workspace/builds/worker-117/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-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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] 8f2436260e573c0b9d30779693d6832509ef624b8f3e794e9881985403085928
[INFO] running `Command { std: "docker" "start" "-a" "8f2436260e573c0b9d30779693d6832509ef624b8f3e794e9881985403085928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f2436260e573c0b9d30779693d6832509ef624b8f3e794e9881985403085928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f2436260e573c0b9d30779693d6832509ef624b8f3e794e9881985403085928", kill_on_drop: false }`
[INFO] [stdout] 8f2436260e573c0b9d30779693d6832509ef624b8f3e794e9881985403085928
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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] b3d74116b9f054d6a6fc555726f71651c258b597a61808fd94fdc76e389f7f6c
[INFO] running `Command { std: "docker" "start" "-a" "b3d74116b9f054d6a6fc555726f71651c258b597a61808fd94fdc76e389f7f6c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling var-watcher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "b3d74116b9f054d6a6fc555726f71651c258b597a61808fd94fdc76e389f7f6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3d74116b9f054d6a6fc555726f71651c258b597a61808fd94fdc76e389f7f6c", kill_on_drop: false }`
[INFO] [stdout] b3d74116b9f054d6a6fc555726f71651c258b597a61808fd94fdc76e389f7f6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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] 01e739cf849707a2c2611a97b9b6e9cb2e7839d65dea5a211bff8a9f8632fda3
[INFO] running `Command { std: "docker" "start" "-a" "01e739cf849707a2c2611a97b9b6e9cb2e7839d65dea5a211bff8a9f8632fda3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling var-watcher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "01e739cf849707a2c2611a97b9b6e9cb2e7839d65dea5a211bff8a9f8632fda3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01e739cf849707a2c2611a97b9b6e9cb2e7839d65dea5a211bff8a9f8632fda3", kill_on_drop: false }`
[INFO] [stdout] 01e739cf849707a2c2611a97b9b6e9cb2e7839d65dea5a211bff8a9f8632fda3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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] 9c44de64fc0f27507ddb51c4b63fce88b99b0ef873966dccdd712dfbac9b8924
[INFO] running `Command { std: "docker" "start" "-a" "9c44de64fc0f27507ddb51c4b63fce88b99b0ef873966dccdd712dfbac9b8924", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.94s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/var_watcher-b3562d87a115718c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test watcher::tests::initiate_callback ... 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 var-watcher
[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" "9c44de64fc0f27507ddb51c4b63fce88b99b0ef873966dccdd712dfbac9b8924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c44de64fc0f27507ddb51c4b63fce88b99b0ef873966dccdd712dfbac9b8924", kill_on_drop: false }`
[INFO] [stdout] 9c44de64fc0f27507ddb51c4b63fce88b99b0ef873966dccdd712dfbac9b8924