[INFO] fetching crate mandelbrot 0.1.2...
[INFO] testing mandelbrot-0.1.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate mandelbrot 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate mandelbrot 0.1.2 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 mandelbrot 0.1.2
[INFO] finished tweaking crates.io crate mandelbrot 0.1.2
[INFO] tweaked toml for crates.io crate mandelbrot 0.1.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate mandelbrot 0.1.2 already has a lockfile, it will not be regenerated
[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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] c58f4f39982a635e5392fc2ab852ad4558054d09123a245198bce649deb7f0e2
[INFO] running `Command { std: "docker" "start" "-a" "c58f4f39982a635e5392fc2ab852ad4558054d09123a245198bce649deb7f0e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c58f4f39982a635e5392fc2ab852ad4558054d09123a245198bce649deb7f0e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c58f4f39982a635e5392fc2ab852ad4558054d09123a245198bce649deb7f0e2", kill_on_drop: false }`
[INFO] [stdout] c58f4f39982a635e5392fc2ab852ad4558054d09123a245198bce649deb7f0e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] 0fe95845a14cd2b4780ae5b17330ecc6d67d37e6fbfc25d2eb23a1d265e8ef64
[INFO] running `Command { std: "docker" "start" "-a" "0fe95845a14cd2b4780ae5b17330ecc6d67d37e6fbfc25d2eb23a1d265e8ef64", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling inflate v0.2.0
[INFO] [stderr]    Compiling crossbeam v0.2.12
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling png v0.7.0
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling image v0.13.0
[INFO] [stderr]    Compiling mandelbrot v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.24s
[INFO] running `Command { std: "docker" "inspect" "0fe95845a14cd2b4780ae5b17330ecc6d67d37e6fbfc25d2eb23a1d265e8ef64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe95845a14cd2b4780ae5b17330ecc6d67d37e6fbfc25d2eb23a1d265e8ef64", kill_on_drop: false }`
[INFO] [stdout] 0fe95845a14cd2b4780ae5b17330ecc6d67d37e6fbfc25d2eb23a1d265e8ef64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78a14aef64e3448cffe0740c225479a79fa7457c775cdd9c10fdbada03bb4485
[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" "78a14aef64e3448cffe0740c225479a79fa7457c775cdd9c10fdbada03bb4485", kill_on_drop: false }`
[INFO] [stderr]    Compiling mandelbrot v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "78a14aef64e3448cffe0740c225479a79fa7457c775cdd9c10fdbada03bb4485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78a14aef64e3448cffe0740c225479a79fa7457c775cdd9c10fdbada03bb4485", kill_on_drop: false }`
[INFO] [stdout] 78a14aef64e3448cffe0740c225479a79fa7457c775cdd9c10fdbada03bb4485
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 17d59f19bfb5eec338c81498e87a546ad3342f2f1ad9b51273d350ebfc475cf2
[INFO] running `Command { std: "docker" "start" "-a" "17d59f19bfb5eec338c81498e87a546ad3342f2f1ad9b51273d350ebfc475cf2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mandelbrot-112e5176f7297031
[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" "17d59f19bfb5eec338c81498e87a546ad3342f2f1ad9b51273d350ebfc475cf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17d59f19bfb5eec338c81498e87a546ad3342f2f1ad9b51273d350ebfc475cf2", kill_on_drop: false }`
[INFO] [stdout] 17d59f19bfb5eec338c81498e87a546ad3342f2f1ad9b51273d350ebfc475cf2