[INFO] fetching crate butterscotch 0.0.1...
[INFO] testing butterscotch-0.0.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate butterscotch 0.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate butterscotch 0.0.1 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 butterscotch 0.0.1
[INFO] finished tweaking crates.io crate butterscotch 0.0.1
[INFO] tweaked toml for crates.io crate butterscotch 0.0.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate butterscotch 0.0.1 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] d032ae004fed354921b42423dc506b1835568b0b7669a747c1ae6079ae881f67
[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" "d032ae004fed354921b42423dc506b1835568b0b7669a747c1ae6079ae881f67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d032ae004fed354921b42423dc506b1835568b0b7669a747c1ae6079ae881f67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d032ae004fed354921b42423dc506b1835568b0b7669a747c1ae6079ae881f67", kill_on_drop: false }`
[INFO] [stdout] d032ae004fed354921b42423dc506b1835568b0b7669a747c1ae6079ae881f67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 107c73334717b7d96c99572621f7d9aac6b24c648393d6f6d9916dc305835457
[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" "107c73334717b7d96c99572621f7d9aac6b24c648393d6f6d9916dc305835457", kill_on_drop: false }`
[INFO] [stderr]    Compiling butterscotch v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "107c73334717b7d96c99572621f7d9aac6b24c648393d6f6d9916dc305835457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "107c73334717b7d96c99572621f7d9aac6b24c648393d6f6d9916dc305835457", kill_on_drop: false }`
[INFO] [stdout] 107c73334717b7d96c99572621f7d9aac6b24c648393d6f6d9916dc305835457
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 8d7ea7257d14c66d55d84f2831c3a1ab891b5a550373a00c8f6cb0d36f5ab9ac
[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" "8d7ea7257d14c66d55d84f2831c3a1ab891b5a550373a00c8f6cb0d36f5ab9ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling butterscotch v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "8d7ea7257d14c66d55d84f2831c3a1ab891b5a550373a00c8f6cb0d36f5ab9ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d7ea7257d14c66d55d84f2831c3a1ab891b5a550373a00c8f6cb0d36f5ab9ac", kill_on_drop: false }`
[INFO] [stdout] 8d7ea7257d14c66d55d84f2831c3a1ab891b5a550373a00c8f6cb0d36f5ab9ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] af7e075da21cfca3faf6d00b3c737d92e54d04a7752b9ec38f3463c5d43f231b
[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" "af7e075da21cfca3faf6d00b3c737d92e54d04a7752b9ec38f3463c5d43f231b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/butterscotch-3aaea90b4c0367d4
[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" "af7e075da21cfca3faf6d00b3c737d92e54d04a7752b9ec38f3463c5d43f231b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af7e075da21cfca3faf6d00b3c737d92e54d04a7752b9ec38f3463c5d43f231b", kill_on_drop: false }`
[INFO] [stdout] af7e075da21cfca3faf6d00b3c737d92e54d04a7752b9ec38f3463c5d43f231b