[INFO] fetching crate mandelbrot 0.1.2...
[INFO] checking mandelbrot-0.1.2 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate mandelbrot 0.1.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mandelbrot 0.1.2 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mandelbrot 0.1.2
[INFO] finished tweaking crates.io crate mandelbrot 0.1.2
[INFO] tweaked toml for crates.io crate mandelbrot 0.1.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate mandelbrot 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4519f5a3a767b4e48d4d4b0545f127b9fbae978a98b8271639ab7256042a0e35
[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" "4519f5a3a767b4e48d4d4b0545f127b9fbae978a98b8271639ab7256042a0e35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4519f5a3a767b4e48d4d4b0545f127b9fbae978a98b8271639ab7256042a0e35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4519f5a3a767b4e48d4d4b0545f127b9fbae978a98b8271639ab7256042a0e35", kill_on_drop: false }`
[INFO] [stdout] 4519f5a3a767b4e48d4d4b0545f127b9fbae978a98b8271639ab7256042a0e35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4654585da292ce1f2c99e6331e8b16f32f940515ffabda32bb9a853bde2cb5c0
[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" "4654585da292ce1f2c99e6331e8b16f32f940515ffabda32bb9a853bde2cb5c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking inflate v0.2.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking mandelbrot v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.04s
[INFO] running `Command { std: "docker" "inspect" "4654585da292ce1f2c99e6331e8b16f32f940515ffabda32bb9a853bde2cb5c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4654585da292ce1f2c99e6331e8b16f32f940515ffabda32bb9a853bde2cb5c0", kill_on_drop: false }`
[INFO] [stdout] 4654585da292ce1f2c99e6331e8b16f32f940515ffabda32bb9a853bde2cb5c0