[INFO] fetching crate pretty_balanced 0.1.0...
[INFO] testing pretty_balanced-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate pretty_balanced 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate pretty_balanced 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 pretty_balanced 0.1.0
[INFO] finished tweaking crates.io crate pretty_balanced 0.1.0
[INFO] tweaked toml for crates.io crate pretty_balanced 0.1.0 written to /workspace/builds/worker-9/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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 97404c0341364eb6308df6411b07e2dc063bf2bee864cb79f409c51794080bc2
[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" "97404c0341364eb6308df6411b07e2dc063bf2bee864cb79f409c51794080bc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97404c0341364eb6308df6411b07e2dc063bf2bee864cb79f409c51794080bc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97404c0341364eb6308df6411b07e2dc063bf2bee864cb79f409c51794080bc2", kill_on_drop: false }`
[INFO] [stdout] 97404c0341364eb6308df6411b07e2dc063bf2bee864cb79f409c51794080bc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] c7676cbd9f5753a142b318a6e6e76180422676bc5ae014ee3f2dfcde252082ae
[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" "c7676cbd9f5753a142b318a6e6e76180422676bc5ae014ee3f2dfcde252082ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling pretty_balanced v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "c7676cbd9f5753a142b318a6e6e76180422676bc5ae014ee3f2dfcde252082ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7676cbd9f5753a142b318a6e6e76180422676bc5ae014ee3f2dfcde252082ae", kill_on_drop: false }`
[INFO] [stdout] c7676cbd9f5753a142b318a6e6e76180422676bc5ae014ee3f2dfcde252082ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] da6b06cc6f1aba76d41bc38f02ab9d41dd7c46eb5455ca4800d6bd220f72d0ad
[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" "da6b06cc6f1aba76d41bc38f02ab9d41dd7c46eb5455ca4800d6bd220f72d0ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling pretty_balanced v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "da6b06cc6f1aba76d41bc38f02ab9d41dd7c46eb5455ca4800d6bd220f72d0ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da6b06cc6f1aba76d41bc38f02ab9d41dd7c46eb5455ca4800d6bd220f72d0ad", kill_on_drop: false }`
[INFO] [stdout] da6b06cc6f1aba76d41bc38f02ab9d41dd7c46eb5455ca4800d6bd220f72d0ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 5cd23ccbd51fd8ad6c3971bbadcd5e8cbab659704dedeba0c2ee7f7da5b120f4
[INFO] running `Command { std: "docker" "start" "-a" "5cd23ccbd51fd8ad6c3971bbadcd5e8cbab659704dedeba0c2ee7f7da5b120f4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/pretty_balanced-4c5fcde32ae40e2b
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pretty_balanced
[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" "5cd23ccbd51fd8ad6c3971bbadcd5e8cbab659704dedeba0c2ee7f7da5b120f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cd23ccbd51fd8ad6c3971bbadcd5e8cbab659704dedeba0c2ee7f7da5b120f4", kill_on_drop: false }`
[INFO] [stdout] 5cd23ccbd51fd8ad6c3971bbadcd5e8cbab659704dedeba0c2ee7f7da5b120f4