[INFO] crate toio 0.1.4 is already in cache
[INFO] testing toio-0.1.4 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate toio 0.1.4 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate toio 0.1.4 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 toio 0.1.4
[INFO] finished tweaking crates.io crate toio 0.1.4
[INFO] tweaked toml for crates.io crate toio 0.1.4 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate toio 0.1.4 already has a lockfile, it will not be regenerated
[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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] d005b62089d4105698eeaf5f8aec16b3f771c8e9c806c30f65c9c6855ea6a49d
[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" "d005b62089d4105698eeaf5f8aec16b3f771c8e9c806c30f65c9c6855ea6a49d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d005b62089d4105698eeaf5f8aec16b3f771c8e9c806c30f65c9c6855ea6a49d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d005b62089d4105698eeaf5f8aec16b3f771c8e9c806c30f65c9c6855ea6a49d", kill_on_drop: false }`
[INFO] [stdout] d005b62089d4105698eeaf5f8aec16b3f771c8e9c806c30f65c9c6855ea6a49d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 894a12b2b4dcc21acd3c89b123b9ff26854a52d5049b1ac1e1e31b623d292958
[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" "894a12b2b4dcc21acd3c89b123b9ff26854a52d5049b1ac1e1e31b623d292958", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-nested v0.1.5
[INFO] [stderr]    Compiling hex-literal-impl v0.2.2
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling hex-literal v0.2.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.20
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_repr v0.1.5
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling async-trait v0.1.35
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling pin-project v0.4.20
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling toio v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.07s
[INFO] running `Command { std: "docker" "inspect" "894a12b2b4dcc21acd3c89b123b9ff26854a52d5049b1ac1e1e31b623d292958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "894a12b2b4dcc21acd3c89b123b9ff26854a52d5049b1ac1e1e31b623d292958", kill_on_drop: false }`
[INFO] [stdout] 894a12b2b4dcc21acd3c89b123b9ff26854a52d5049b1ac1e1e31b623d292958
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] c1e3f4ef87b3634882f7bcfb205b5f349e1fcf0020e3308ab9dadbae63138aad
[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" "c1e3f4ef87b3634882f7bcfb205b5f349e1fcf0020e3308ab9dadbae63138aad", kill_on_drop: false }`
[INFO] [stderr]    Compiling toio v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `toio`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name toio --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 --test -C metadata=5b92398ca8644364 -C extra-filename=-5b92398ca8644364 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-95971e4a85600481.rlib --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-a80d3f1b21befc46.so --extern bytes=/opt/rustwide/target/debug/deps/libbytes-879803455d619582.rlib --extern chrono=/opt/rustwide/target/debug/deps/libchrono-aecc38126bdc1071.rlib --extern derive_new=/opt/rustwide/target/debug/deps/libderive_new-0445b40f0fb82bf7.so --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-a25cd5365cfb5f2d.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-0a76b31c46a1df7f.rlib --extern hex_literal=/opt/rustwide/target/debug/deps/libhex_literal-4029ee124b6ccf83.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-6126053784ee4a98.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-6153e337ece65d0e.rlib --extern serde_repr=/opt/rustwide/target/debug/deps/libserde_repr-4a5ac78719192b6d.so --extern tokio=/opt/rustwide/target/debug/deps/libtokio-ce3dbcd70710cce3.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c1e3f4ef87b3634882f7bcfb205b5f349e1fcf0020e3308ab9dadbae63138aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1e3f4ef87b3634882f7bcfb205b5f349e1fcf0020e3308ab9dadbae63138aad", kill_on_drop: false }`
[INFO] [stdout] c1e3f4ef87b3634882f7bcfb205b5f349e1fcf0020e3308ab9dadbae63138aad