[INFO] cloning repository https://github.com/RustStudy/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RustStudy/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustStudy%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustStudy%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 56b81246fde731a38f6d0d5ac1d70e56f274d7be
[INFO] checking RustStudy/mandelbrot against try#7a89b05fa7ebfbb9dd798a7dbd888c0550beb838 for pr-109119
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRustStudy%2Fmandelbrot" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RustStudy/mandelbrot on toolchain 7a89b05fa7ebfbb9dd798a7dbd888c0550beb838
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7a89b05fa7ebfbb9dd798a7dbd888c0550beb838" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RustStudy/mandelbrot
[INFO] finished tweaking git repo https://github.com/RustStudy/mandelbrot
[INFO] tweaked toml for git repo https://github.com/RustStudy/mandelbrot written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/RustStudy/mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7a89b05fa7ebfbb9dd798a7dbd888c0550beb838" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e2a9e7e193985ba0d5a8221c3984785a9e0a75acc409a02815633ff67a1f464e" "/opt/rustwide/cargo-home/bin/cargo" "+7a89b05fa7ebfbb9dd798a7dbd888c0550beb838" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec13b6a426a64f3170ca290637d31395d7409bd532a6906f53063de3020fae10
[INFO] running `Command { std: "docker" "start" "-a" "ec13b6a426a64f3170ca290637d31395d7409bd532a6906f53063de3020fae10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec13b6a426a64f3170ca290637d31395d7409bd532a6906f53063de3020fae10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec13b6a426a64f3170ca290637d31395d7409bd532a6906f53063de3020fae10", kill_on_drop: false }`
[INFO] [stdout] ec13b6a426a64f3170ca290637d31395d7409bd532a6906f53063de3020fae10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:e2a9e7e193985ba0d5a8221c3984785a9e0a75acc409a02815633ff67a1f464e" "/opt/rustwide/cargo-home/bin/cargo" "+7a89b05fa7ebfbb9dd798a7dbd888c0550beb838" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66802aee37ffb976de12f926132424db5d4bebaabd5b01146a2a7c170e70f864
[INFO] running `Command { std: "docker" "start" "-a" "66802aee37ffb976de12f926132424db5d4bebaabd5b01146a2a7c170e70f864", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]     Checking libc v0.2.26
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking scopeguard v0.3.2
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking futures v0.1.14
[INFO] [stderr]     Checking adler32 v1.0.0
[INFO] [stderr]     Checking coco v0.1.1
[INFO] [stderr]     Checking inflate v0.2.0
[INFO] [stderr]     Checking deflate v0.7.13
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num_cpus v1.6.2
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.7
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking crossbeam v0.2.10
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking num-bigint v0.1.39
[INFO] [stderr]     Checking num-complex v0.1.38
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]     Checking num-rational v0.1.38
[INFO] [stderr]     Checking num v0.1.39
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.86s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "66802aee37ffb976de12f926132424db5d4bebaabd5b01146a2a7c170e70f864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66802aee37ffb976de12f926132424db5d4bebaabd5b01146a2a7c170e70f864", kill_on_drop: false }`
[INFO] [stdout] 66802aee37ffb976de12f926132424db5d4bebaabd5b01146a2a7c170e70f864