[INFO] crate popcorn-butter 0.1.0 is already in cache
[INFO] testing popcorn-butter-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate popcorn-butter 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate popcorn-butter 0.1.0 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 popcorn-butter 0.1.0
[INFO] removed path dependency popcorn from crates.io crate popcorn-butter 0.1.0
[INFO] removed path dependency popcorn-blas from crates.io crate popcorn-butter 0.1.0
[INFO] finished tweaking crates.io crate popcorn-butter 0.1.0
[INFO] tweaked toml for crates.io crate popcorn-butter 0.1.0 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] a7a82164512acc32d3ce62b4b9bd5844227e3e40f7aeaf74979b3682079cdf17
[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" "a7a82164512acc32d3ce62b4b9bd5844227e3e40f7aeaf74979b3682079cdf17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7a82164512acc32d3ce62b4b9bd5844227e3e40f7aeaf74979b3682079cdf17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7a82164512acc32d3ce62b4b9bd5844227e3e40f7aeaf74979b3682079cdf17", kill_on_drop: false }`
[INFO] [stdout] a7a82164512acc32d3ce62b4b9bd5844227e3e40f7aeaf74979b3682079cdf17
[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] b491d3af6067dfed13e07dca36060b946c21ac086d7f648bad05679ba7b84da4
[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" "b491d3af6067dfed13e07dca36060b946c21ac086d7f648bad05679ba7b84da4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling blas-sys v0.6.9
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling popcorn v0.1.0
[INFO] [stderr]    Compiling popcorn-blas v0.1.0
[INFO] [stderr]    Compiling popcorn-butter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `Command { std: "docker" "inspect" "b491d3af6067dfed13e07dca36060b946c21ac086d7f648bad05679ba7b84da4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b491d3af6067dfed13e07dca36060b946c21ac086d7f648bad05679ba7b84da4", kill_on_drop: false }`
[INFO] [stdout] b491d3af6067dfed13e07dca36060b946c21ac086d7f648bad05679ba7b84da4
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1abf45b4cffe24f76d578e23031669765392ba25946f6d60d1109425e8201911
[INFO] running `Command { std: "docker" "start" "-a" "1abf45b4cffe24f76d578e23031669765392ba25946f6d60d1109425e8201911", kill_on_drop: false }`
[INFO] [stderr]    Compiling popcorn-butter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "1abf45b4cffe24f76d578e23031669765392ba25946f6d60d1109425e8201911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1abf45b4cffe24f76d578e23031669765392ba25946f6d60d1109425e8201911", kill_on_drop: false }`
[INFO] [stdout] 1abf45b4cffe24f76d578e23031669765392ba25946f6d60d1109425e8201911
[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] [stdout] 070cca1bb8a31c3c0c9d7b077150732c63a7925a02a72407f3f833f8e363241e
[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" "070cca1bb8a31c3c0c9d7b077150732c63a7925a02a72407f3f833f8e363241e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/popcorn_butter-b65982a75c7e05f3
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests popcorn-butter
[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" "070cca1bb8a31c3c0c9d7b077150732c63a7925a02a72407f3f833f8e363241e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "070cca1bb8a31c3c0c9d7b077150732c63a7925a02a72407f3f833f8e363241e", kill_on_drop: false }`
[INFO] [stdout] 070cca1bb8a31c3c0c9d7b077150732c63a7925a02a72407f3f833f8e363241e