[INFO] cloning repository https://github.com/dmdrummond/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dmdrummond/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmdrummond%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmdrummond%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8dd70ffe7f24420dedc3787400755898f43178c8
[INFO] testing dmdrummond/mandelbrot against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdmdrummond%2Fmandelbrot" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dmdrummond/mandelbrot on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dmdrummond/mandelbrot
[INFO] finished tweaking git repo https://github.com/dmdrummond/mandelbrot
[INFO] tweaked toml for git repo https://github.com/dmdrummond/mandelbrot written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/dmdrummond/mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-rational v0.1.40
[INFO] [stderr]   Downloaded rand v0.3.20
[INFO] [stderr]   Downloaded rayon v0.8.2
[INFO] [stderr]   Downloaded either v1.4.0
[INFO] [stderr]   Downloaded num-iter v0.1.34
[INFO] [stderr]   Downloaded rayon-core v1.3.0
[INFO] [stderr]   Downloaded deflate v0.7.17
[INFO] [stderr]   Downloaded num-complex v0.1.41
[INFO] [stderr]   Downloaded num v0.1.41
[INFO] [stderr]   Downloaded inflate v0.3.3
[INFO] [stderr]   Downloaded num-integer v0.1.35
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.8
[INFO] [stderr]   Downloaded num-bigint v0.1.41
[INFO] [stderr]   Downloaded libc v0.2.35
[INFO] [stderr]   Downloaded adler32 v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef1b8c59c356cdd4d7633a6e9305593ba29055c5d3d2f4e22c3e5d62663cd125
[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" "ef1b8c59c356cdd4d7633a6e9305593ba29055c5d3d2f4e22c3e5d62663cd125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef1b8c59c356cdd4d7633a6e9305593ba29055c5d3d2f4e22c3e5d62663cd125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef1b8c59c356cdd4d7633a6e9305593ba29055c5d3d2f4e22c3e5d62663cd125", kill_on_drop: false }`
[INFO] [stdout] ef1b8c59c356cdd4d7633a6e9305593ba29055c5d3d2f4e22c3e5d62663cd125
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c767bca6d67568a65ae7ff8bb8b80e38f376e36e258b643889ef0b3392f0ba7a
[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" "c767bca6d67568a65ae7ff8bb8b80e38f376e36e258b643889ef0b3392f0ba7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.35
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling rand v0.3.20
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling num-bigint v0.1.41
[INFO] [stderr]    Compiling num-complex v0.1.41
[INFO] [stderr]    Compiling jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling num-rational v0.1.40
[INFO] [stderr]    Compiling num v0.1.41
[INFO] [stderr]    Compiling image v0.18.0
[INFO] [stderr]    Compiling mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.02s
[INFO] running `Command { std: "docker" "inspect" "c767bca6d67568a65ae7ff8bb8b80e38f376e36e258b643889ef0b3392f0ba7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c767bca6d67568a65ae7ff8bb8b80e38f376e36e258b643889ef0b3392f0ba7a", kill_on_drop: false }`
[INFO] [stdout] c767bca6d67568a65ae7ff8bb8b80e38f376e36e258b643889ef0b3392f0ba7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08ae81c3278fbae8a6d59dc52cbc64d53c74f8459bbc753d204ed3e7f08da4d9
[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" "08ae81c3278fbae8a6d59dc52cbc64d53c74f8459bbc753d204ed3e7f08da4d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "08ae81c3278fbae8a6d59dc52cbc64d53c74f8459bbc753d204ed3e7f08da4d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08ae81c3278fbae8a6d59dc52cbc64d53c74f8459bbc753d204ed3e7f08da4d9", kill_on_drop: false }`
[INFO] [stdout] 08ae81c3278fbae8a6d59dc52cbc64d53c74f8459bbc753d204ed3e7f08da4d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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] b6cfb8fe0d2be3a2fa4e179c8fff6e3cd40aa57fa7536513edf73c252d93ad98
[INFO] running `Command { std: "docker" "start" "-a" "b6cfb8fe0d2be3a2fa4e179c8fff6e3cd40aa57fa7536513edf73c252d93ad98", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mandelbrot-3ef4a788bcaa175d)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b6cfb8fe0d2be3a2fa4e179c8fff6e3cd40aa57fa7536513edf73c252d93ad98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6cfb8fe0d2be3a2fa4e179c8fff6e3cd40aa57fa7536513edf73c252d93ad98", kill_on_drop: false }`
[INFO] [stdout] b6cfb8fe0d2be3a2fa4e179c8fff6e3cd40aa57fa7536513edf73c252d93ad98