[INFO] cloning repository https://github.com/aleksey-orekhov/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aleksey-orekhov/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleksey-orekhov%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleksey-orekhov%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0bafb17e009d7640f185ab42a6a9e32611189024
[INFO] checking aleksey-orekhov/mandelbrot against master#30b3f35c420694a4f24e5a4df00f06073f4f3a37 for pr-94081
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faleksey-orekhov%2Fmandelbrot" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aleksey-orekhov/mandelbrot on toolchain 30b3f35c420694a4f24e5a4df00f06073f4f3a37
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+30b3f35c420694a4f24e5a4df00f06073f4f3a37" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aleksey-orekhov/mandelbrot
[INFO] finished tweaking git repo https://github.com/aleksey-orekhov/mandelbrot
[INFO] tweaked toml for git repo https://github.com/aleksey-orekhov/mandelbrot written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/aleksey-orekhov/mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+30b3f35c420694a4f24e5a4df00f06073f4f3a37" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded png v0.4.3
[INFO] [stderr]   Downloaded enum_primitive v0.1.0
[INFO] [stderr]   Downloaded image v0.6.1
[INFO] [stderr]   Downloaded byteorder v0.4.2
[INFO] [stderr]   Downloaded inflate v0.1.1
[INFO] [stderr]   Downloaded gif v0.7.0
[INFO] [stderr]   Downloaded rustc-serialize v0.3.21
[INFO] [stderr]   Downloaded lzw v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+30b3f35c420694a4f24e5a4df00f06073f4f3a37" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c84c056e007052eee46e67db490c61fddab0c54ac5ba687286b14b24fba4b15
[INFO] running `Command { std: "docker" "start" "-a" "2c84c056e007052eee46e67db490c61fddab0c54ac5ba687286b14b24fba4b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c84c056e007052eee46e67db490c61fddab0c54ac5ba687286b14b24fba4b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c84c056e007052eee46e67db490c61fddab0c54ac5ba687286b14b24fba4b15", kill_on_drop: false }`
[INFO] [stdout] 2c84c056e007052eee46e67db490c61fddab0c54ac5ba687286b14b24fba4b15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+30b3f35c420694a4f24e5a4df00f06073f4f3a37" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdc570ba28b6b8beb13a7fd91cd8432895e6db6a61ba3720e8831b85e31c0831
[INFO] running `Command { std: "docker" "start" "-a" "fdc570ba28b6b8beb13a7fd91cd8432895e6db6a61ba3720e8831b85e31c0831", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.17
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking rustc-serialize v0.3.21
[INFO] [stderr]    Compiling gcc v0.3.38
[INFO] [stderr]     Checking inflate v0.1.1
[INFO] [stderr]     Checking lzw v0.9.0
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]     Checking byteorder v0.4.2
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking crossbeam v0.2.10
[INFO] [stderr]     Checking gif v0.7.0
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]     Checking flate2 v0.2.14
[INFO] [stderr]     Checking png v0.4.3
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking enum_primitive v0.1.0
[INFO] [stderr]     Checking image v0.6.1
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     try!(encoder.encode(&pixels,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 |     try!(encoder.encode(&pixels,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.83s
[INFO] running `Command { std: "docker" "inspect" "fdc570ba28b6b8beb13a7fd91cd8432895e6db6a61ba3720e8831b85e31c0831", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdc570ba28b6b8beb13a7fd91cd8432895e6db6a61ba3720e8831b85e31c0831", kill_on_drop: false }`
[INFO] [stdout] fdc570ba28b6b8beb13a7fd91cd8432895e6db6a61ba3720e8831b85e31c0831