[INFO] crate root 0.0.0 is already in cache
[INFO] testing root-0.0.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate root 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate root 0.0.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate root 0.0.0
[INFO] finished tweaking crates.io crate root 0.0.0
[INFO] tweaked toml for crates.io crate root 0.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71b949a596d47a937bb846352c0d64a3e3f7c8b7f3b1a87ff8f2a34d7b646a87
[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" "71b949a596d47a937bb846352c0d64a3e3f7c8b7f3b1a87ff8f2a34d7b646a87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71b949a596d47a937bb846352c0d64a3e3f7c8b7f3b1a87ff8f2a34d7b646a87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71b949a596d47a937bb846352c0d64a3e3f7c8b7f3b1a87ff8f2a34d7b646a87", kill_on_drop: false }`
[INFO] [stdout] 71b949a596d47a937bb846352c0d64a3e3f7c8b7f3b1a87ff8f2a34d7b646a87
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0d45e50c06d5ad4f450948836202dfd3bce66ac3ba3a55dc1fbf2c3abd37617
[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" "c0d45e50c06d5ad4f450948836202dfd3bce66ac3ba3a55dc1fbf2c3abd37617", kill_on_drop: false }`
[INFO] [stderr]    Compiling root v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "c0d45e50c06d5ad4f450948836202dfd3bce66ac3ba3a55dc1fbf2c3abd37617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0d45e50c06d5ad4f450948836202dfd3bce66ac3ba3a55dc1fbf2c3abd37617", kill_on_drop: false }`
[INFO] [stdout] c0d45e50c06d5ad4f450948836202dfd3bce66ac3ba3a55dc1fbf2c3abd37617
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 448991801e6a0a7c136c1ec922a7ebcdcfcbf9ae3c2d72d17bb66dccac25a98c
[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" "448991801e6a0a7c136c1ec922a7ebcdcfcbf9ae3c2d72d17bb66dccac25a98c", kill_on_drop: false }`
[INFO] [stderr]    Compiling root v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "448991801e6a0a7c136c1ec922a7ebcdcfcbf9ae3c2d72d17bb66dccac25a98c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "448991801e6a0a7c136c1ec922a7ebcdcfcbf9ae3c2d72d17bb66dccac25a98c", kill_on_drop: false }`
[INFO] [stdout] 448991801e6a0a7c136c1ec922a7ebcdcfcbf9ae3c2d72d17bb66dccac25a98c
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 60bcfb5a46970fd2dfd5ad10dd1a8d4fed18248c02a7d3d5866c82ed84dbdcb4
[INFO] running `Command { std: "docker" "start" "-a" "60bcfb5a46970fd2dfd5ad10dd1a8d4fed18248c02a7d3d5866c82ed84dbdcb4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/root-9636049211cbbd8e
[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] [stderr]    Doc-tests root
[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" "60bcfb5a46970fd2dfd5ad10dd1a8d4fed18248c02a7d3d5866c82ed84dbdcb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60bcfb5a46970fd2dfd5ad10dd1a8d4fed18248c02a7d3d5866c82ed84dbdcb4", kill_on_drop: false }`
[INFO] [stdout] 60bcfb5a46970fd2dfd5ad10dd1a8d4fed18248c02a7d3d5866c82ed84dbdcb4