[INFO] fetching crate a_example 0.1.2...
[INFO] testing a_example-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate a_example 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate a_example 0.1.2 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 a_example 0.1.2
[INFO] finished tweaking crates.io crate a_example 0.1.2
[INFO] tweaked toml for crates.io crate a_example 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate a_example 0.1.2 already has a lockfile, it will not be regenerated
[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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 8b3818f9ad0d9c0675b67e3cd3a4bfaad03eed8a8cf52043fadccc70b4aa958b
[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" "8b3818f9ad0d9c0675b67e3cd3a4bfaad03eed8a8cf52043fadccc70b4aa958b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b3818f9ad0d9c0675b67e3cd3a4bfaad03eed8a8cf52043fadccc70b4aa958b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b3818f9ad0d9c0675b67e3cd3a4bfaad03eed8a8cf52043fadccc70b4aa958b", kill_on_drop: false }`
[INFO] [stdout] 8b3818f9ad0d9c0675b67e3cd3a4bfaad03eed8a8cf52043fadccc70b4aa958b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 833a132a54298ad4a41a0e349dcfc55ecf9d3bcff3c970d2f2d50d3991cc0fa3
[INFO] running `Command { std: "docker" "start" "-a" "833a132a54298ad4a41a0e349dcfc55ecf9d3bcff3c970d2f2d50d3991cc0fa3", kill_on_drop: false }`
[INFO] [stderr]    Compiling a_example v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "833a132a54298ad4a41a0e349dcfc55ecf9d3bcff3c970d2f2d50d3991cc0fa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "833a132a54298ad4a41a0e349dcfc55ecf9d3bcff3c970d2f2d50d3991cc0fa3", kill_on_drop: false }`
[INFO] [stdout] 833a132a54298ad4a41a0e349dcfc55ecf9d3bcff3c970d2f2d50d3991cc0fa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] ea5dddc50f55830150125651d827b05b228af736a7e366bd6a3b954843474c33
[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" "ea5dddc50f55830150125651d827b05b228af736a7e366bd6a3b954843474c33", kill_on_drop: false }`
[INFO] [stderr]    Compiling a_example v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "ea5dddc50f55830150125651d827b05b228af736a7e366bd6a3b954843474c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea5dddc50f55830150125651d827b05b228af736a7e366bd6a3b954843474c33", kill_on_drop: false }`
[INFO] [stdout] ea5dddc50f55830150125651d827b05b228af736a7e366bd6a3b954843474c33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 168a3f84323fc0d0012bc975c7e387637e819e7854e054c8674157ba216d7a8f
[INFO] running `Command { std: "docker" "start" "-a" "168a3f84323fc0d0012bc975c7e387637e819e7854e054c8674157ba216d7a8f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/a_example-6d558e8da3749587)
[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" "168a3f84323fc0d0012bc975c7e387637e819e7854e054c8674157ba216d7a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "168a3f84323fc0d0012bc975c7e387637e819e7854e054c8674157ba216d7a8f", kill_on_drop: false }`
[INFO] [stdout] 168a3f84323fc0d0012bc975c7e387637e819e7854e054c8674157ba216d7a8f