[INFO] cloning repository https://github.com/ProgrammingRust/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ProgrammingRust/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProgrammingRust%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProgrammingRust%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48f6b29d2e14060054e5913814f1e8a750311394
[INFO] checking ProgrammingRust/mandelbrot against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProgrammingRust%2Fmandelbrot" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ProgrammingRust/mandelbrot on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ProgrammingRust/mandelbrot
[INFO] finished tweaking git repo https://github.com/ProgrammingRust/mandelbrot
[INFO] tweaked toml for git repo https://github.com/ProgrammingRust/mandelbrot written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/ProgrammingRust/mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-traits v0.1.43
[INFO] [stderr]   Downloaded either v1.5.2
[INFO] [stderr]   Downloaded num-rational v0.1.42
[INFO] [stderr]   Downloaded num-bigint v0.1.44
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded num-complex v0.1.43
[INFO] [stderr]   Downloaded color_quant v1.0.1
[INFO] [stderr]   Downloaded lzw v0.10.0
[INFO] [stderr]   Downloaded enum_primitive v0.1.1
[INFO] [stderr]   Downloaded rayon-core v1.6.0
[INFO] [stderr]   Downloaded gif v0.9.2
[INFO] [stderr]   Downloaded inflate v0.2.0
[INFO] [stderr]   Downloaded rayon v1.2.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.16
[INFO] [stderr]   Downloaded adler32 v1.0.3
[INFO] [stderr]   Downloaded deflate v0.7.20
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.9
[INFO] [stderr]   Downloaded deque v0.3.2
[INFO] [stderr]   Downloaded image v0.13.0
[INFO] [stderr]   Downloaded num-iter v0.1.39
[INFO] [stderr]   Downloaded rayon v0.4.3
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] [stderr]   Downloaded png v0.7.0
[INFO] [stderr]   Downloaded rand v0.3.23
[INFO] [stderr]   Downloaded num v0.1.42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad0335bca954fab6aaee2acb638e62dd34d62d4480a84f0daf0b3389abfc8a76
[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" "ad0335bca954fab6aaee2acb638e62dd34d62d4480a84f0daf0b3389abfc8a76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad0335bca954fab6aaee2acb638e62dd34d62d4480a84f0daf0b3389abfc8a76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad0335bca954fab6aaee2acb638e62dd34d62d4480a84f0daf0b3389abfc8a76", kill_on_drop: false }`
[INFO] [stdout] ad0335bca954fab6aaee2acb638e62dd34d62d4480a84f0daf0b3389abfc8a76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fc4b7eebd364338ec081ab1e952dce72a6e7a7e076e9d5b6b77514bed975e35
[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" "0fc4b7eebd364338ec081ab1e952dce72a6e7a7e076e9d5b6b77514bed975e35", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking deque v0.3.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rayon v0.4.3
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking mandelbrot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.33s
[INFO] running `Command { std: "docker" "inspect" "0fc4b7eebd364338ec081ab1e952dce72a6e7a7e076e9d5b6b77514bed975e35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fc4b7eebd364338ec081ab1e952dce72a6e7a7e076e9d5b6b77514bed975e35", kill_on_drop: false }`
[INFO] [stdout] 0fc4b7eebd364338ec081ab1e952dce72a6e7a7e076e9d5b6b77514bed975e35