[INFO] cloning repository https://github.com/SamuelDiazBidot/Mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SamuelDiazBidot/Mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamuelDiazBidot%2FMandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamuelDiazBidot%2FMandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b5612b021bd796a9f5aa20870af59ec935ac605
[INFO] checking SamuelDiazBidot/Mandelbrot against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamuelDiazBidot%2FMandelbrot" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SamuelDiazBidot/Mandelbrot on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SamuelDiazBidot/Mandelbrot
[INFO] finished tweaking git repo https://github.com/SamuelDiazBidot/Mandelbrot
[INFO] tweaked toml for git repo https://github.com/SamuelDiazBidot/Mandelbrot written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/SamuelDiazBidot/Mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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] 72182f7b3d5ba6cee529eccd5abadd56a064665490060ad3bbd7b0e234e05491
[INFO] running `Command { std: "docker" "start" "-a" "72182f7b3d5ba6cee529eccd5abadd56a064665490060ad3bbd7b0e234e05491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72182f7b3d5ba6cee529eccd5abadd56a064665490060ad3bbd7b0e234e05491", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72182f7b3d5ba6cee529eccd5abadd56a064665490060ad3bbd7b0e234e05491", kill_on_drop: false }`
[INFO] [stdout] 72182f7b3d5ba6cee529eccd5abadd56a064665490060ad3bbd7b0e234e05491
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--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] 44a199ea1d30150fd4ec78ea3aa971295c715f3ccf44ef120c1010efdab6d698
[INFO] running `Command { std: "docker" "start" "-a" "44a199ea1d30150fd4ec78ea3aa971295c715f3ccf44ef120c1010efdab6d698", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking gif v0.10.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking png v0.15.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking image v0.22.0
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.20s
[INFO] running `Command { std: "docker" "inspect" "44a199ea1d30150fd4ec78ea3aa971295c715f3ccf44ef120c1010efdab6d698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44a199ea1d30150fd4ec78ea3aa971295c715f3ccf44ef120c1010efdab6d698", kill_on_drop: false }`
[INFO] [stdout] 44a199ea1d30150fd4ec78ea3aa971295c715f3ccf44ef120c1010efdab6d698