[INFO] fetching crate pivot 0.1.0...
[INFO] testing pivot-0.1.0 against 1.52.1 for beta-1.52-2
[INFO] extracting crate pivot 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pivot 0.1.0 on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pivot 0.1.0
[INFO] finished tweaking crates.io crate pivot 0.1.0
[INFO] tweaked toml for crates.io crate pivot 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate pivot 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6d3a9c4bf40905975f33145d900fc390cda0a74106885c6cb8494e7200d74b3f
[INFO] running `Command { std: "docker" "start" "-a" "6d3a9c4bf40905975f33145d900fc390cda0a74106885c6cb8494e7200d74b3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d3a9c4bf40905975f33145d900fc390cda0a74106885c6cb8494e7200d74b3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d3a9c4bf40905975f33145d900fc390cda0a74106885c6cb8494e7200d74b3f", kill_on_drop: false }`
[INFO] [stdout] 6d3a9c4bf40905975f33145d900fc390cda0a74106885c6cb8494e7200d74b3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d1ed3a12b46a74a1539cc0815d584a52a52ab69ea345b20a930af9316829f91b
[INFO] running `Command { std: "docker" "start" "-a" "d1ed3a12b46a74a1539cc0815d584a52a52ab69ea345b20a930af9316829f91b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling leb128 v0.2.4
[INFO] [stderr]    Compiling wast v28.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling wat v1.0.29
[INFO] [stderr]    Compiling ron v0.6.2
[INFO] [stderr]    Compiling pivot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.83s
[INFO] running `Command { std: "docker" "inspect" "d1ed3a12b46a74a1539cc0815d584a52a52ab69ea345b20a930af9316829f91b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1ed3a12b46a74a1539cc0815d584a52a52ab69ea345b20a930af9316829f91b", kill_on_drop: false }`
[INFO] [stdout] d1ed3a12b46a74a1539cc0815d584a52a52ab69ea345b20a930af9316829f91b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 172db332a08ebb34fcc3f22fc59ce7438319c4f007503b8ed5dd942a7a9cf206
[INFO] running `Command { std: "docker" "start" "-a" "172db332a08ebb34fcc3f22fc59ce7438319c4f007503b8ed5dd942a7a9cf206", kill_on_drop: false }`
[INFO] [stderr]    Compiling pivot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "172db332a08ebb34fcc3f22fc59ce7438319c4f007503b8ed5dd942a7a9cf206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "172db332a08ebb34fcc3f22fc59ce7438319c4f007503b8ed5dd942a7a9cf206", kill_on_drop: false }`
[INFO] [stdout] 172db332a08ebb34fcc3f22fc59ce7438319c4f007503b8ed5dd942a7a9cf206
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 876f8fa1d866b8577e619c9bf4a3f4600f72c4da6f8d295337292cc77d5db863
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "876f8fa1d866b8577e619c9bf4a3f4600f72c4da6f8d295337292cc77d5db863", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[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] [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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pivot-1c41a0288e175650)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pivot-98fcd82cb1cf03b5)
[INFO] [stderr]    Doc-tests pivot
[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" "876f8fa1d866b8577e619c9bf4a3f4600f72c4da6f8d295337292cc77d5db863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "876f8fa1d866b8577e619c9bf4a3f4600f72c4da6f8d295337292cc77d5db863", kill_on_drop: false }`
[INFO] [stdout] 876f8fa1d866b8577e619c9bf4a3f4600f72c4da6f8d295337292cc77d5db863