[INFO] fetching crate ppjson 0.1.0...
[INFO] testing ppjson-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate ppjson 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ppjson 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ppjson 0.1.0
[INFO] finished tweaking crates.io crate ppjson 0.1.0
[INFO] tweaked toml for crates.io crate ppjson 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate ppjson 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7f238e238d96af91b060c4302ab778170eb3665bb6f7dea70f9f68b36a5e54e
[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" "d7f238e238d96af91b060c4302ab778170eb3665bb6f7dea70f9f68b36a5e54e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7f238e238d96af91b060c4302ab778170eb3665bb6f7dea70f9f68b36a5e54e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7f238e238d96af91b060c4302ab778170eb3665bb6f7dea70f9f68b36a5e54e", kill_on_drop: false }`
[INFO] [stdout] d7f238e238d96af91b060c4302ab778170eb3665bb6f7dea70f9f68b36a5e54e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dda1238aedf5bf5e8b75db2dd9d0d10be6001b65f5d62789404d89095f728496
[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" "dda1238aedf5bf5e8b75db2dd9d0d10be6001b65f5d62789404d89095f728496", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling errno v0.2.4
[INFO] [stderr]    Compiling pager v0.14.0
[INFO] [stderr]    Compiling colored v1.9.0
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling json-color v0.7.1
[INFO] [stderr]    Compiling ppjson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.16s
[INFO] running `Command { std: "docker" "inspect" "dda1238aedf5bf5e8b75db2dd9d0d10be6001b65f5d62789404d89095f728496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dda1238aedf5bf5e8b75db2dd9d0d10be6001b65f5d62789404d89095f728496", kill_on_drop: false }`
[INFO] [stdout] dda1238aedf5bf5e8b75db2dd9d0d10be6001b65f5d62789404d89095f728496
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40405a3e01213a2d7dd3572be21628ac37ce4977c42e26205e22957249cf051b
[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" "40405a3e01213a2d7dd3572be21628ac37ce4977c42e26205e22957249cf051b", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppjson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "40405a3e01213a2d7dd3572be21628ac37ce4977c42e26205e22957249cf051b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40405a3e01213a2d7dd3572be21628ac37ce4977c42e26205e22957249cf051b", kill_on_drop: false }`
[INFO] [stdout] 40405a3e01213a2d7dd3572be21628ac37ce4977c42e26205e22957249cf051b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] ed40b2d4a6435770918f48fe962bce18690d2265f64d7c0a0e8cc228d0fc2ef2
[INFO] running `Command { std: "docker" "start" "-a" "ed40b2d4a6435770918f48fe962bce18690d2265f64d7c0a0e8cc228d0fc2ef2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ppjson-58d2a9ac973219be
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ed40b2d4a6435770918f48fe962bce18690d2265f64d7c0a0e8cc228d0fc2ef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed40b2d4a6435770918f48fe962bce18690d2265f64d7c0a0e8cc228d0fc2ef2", kill_on_drop: false }`
[INFO] [stdout] ed40b2d4a6435770918f48fe962bce18690d2265f64d7c0a0e8cc228d0fc2ef2