[INFO] fetching crate eager_json 0.1.0...
[INFO] testing eager_json-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate eager_json 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate eager_json 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 eager_json 0.1.0
[INFO] finished tweaking crates.io crate eager_json 0.1.0
[INFO] tweaked toml for crates.io crate eager_json 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] c87282b77d8d3ec09a59fef52133feeab629c56a65dd29cd5e27eebbaba5f27d
[INFO] running `Command { std: "docker" "start" "-a" "c87282b77d8d3ec09a59fef52133feeab629c56a65dd29cd5e27eebbaba5f27d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c87282b77d8d3ec09a59fef52133feeab629c56a65dd29cd5e27eebbaba5f27d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c87282b77d8d3ec09a59fef52133feeab629c56a65dd29cd5e27eebbaba5f27d", kill_on_drop: false }`
[INFO] [stdout] c87282b77d8d3ec09a59fef52133feeab629c56a65dd29cd5e27eebbaba5f27d
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a389902ea0e300a58258647433832f35b22a9f4ea393389f8e9d0f5e79f79dbd
[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" "a389902ea0e300a58258647433832f35b22a9f4ea393389f8e9d0f5e79f79dbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling eager_json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "a389902ea0e300a58258647433832f35b22a9f4ea393389f8e9d0f5e79f79dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a389902ea0e300a58258647433832f35b22a9f4ea393389f8e9d0f5e79f79dbd", kill_on_drop: false }`
[INFO] [stdout] a389902ea0e300a58258647433832f35b22a9f4ea393389f8e9d0f5e79f79dbd
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74b66756d76314a275e0935f2a117dfaa9c7932ed51b64c466625a1da77485b0
[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" "74b66756d76314a275e0935f2a117dfaa9c7932ed51b64c466625a1da77485b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling eager_json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "74b66756d76314a275e0935f2a117dfaa9c7932ed51b64c466625a1da77485b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b66756d76314a275e0935f2a117dfaa9c7932ed51b64c466625a1da77485b0", kill_on_drop: false }`
[INFO] [stdout] 74b66756d76314a275e0935f2a117dfaa9c7932ed51b64c466625a1da77485b0
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 8a6df7cd82a65179c7ffc7e9ac081d2b18cce3778358bc094390519516411188
[INFO] running `Command { std: "docker" "start" "-a" "8a6df7cd82a65179c7ffc7e9ac081d2b18cce3778358bc094390519516411188", 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/eager_json-1b35bda8fd7b773d
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests eager_json
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8a6df7cd82a65179c7ffc7e9ac081d2b18cce3778358bc094390519516411188", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a6df7cd82a65179c7ffc7e9ac081d2b18cce3778358bc094390519516411188", kill_on_drop: false }`
[INFO] [stdout] 8a6df7cd82a65179c7ffc7e9ac081d2b18cce3778358bc094390519516411188