[INFO] fetching crate looke 0.2.1...
[INFO] checking looke-0.2.1 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate looke 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate looke 0.2.1 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate looke 0.2.1
[INFO] finished tweaking crates.io crate looke 0.2.1
[INFO] tweaked toml for crates.io crate looke 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded png v0.12.0
[INFO] [stderr]   Downloaded num-rational v0.2.4
[INFO] [stderr]   Downloaded approx v0.1.1
[INFO] [stderr]   Downloaded palette_derive v0.4.1
[INFO] [stderr]   Downloaded palette v0.4.1
[INFO] [stderr]   Downloaded image v0.20.1
[INFO] [stderr]   Downloaded syn v0.14.9
[INFO] [stderr]   Downloaded tiff v0.2.2
[INFO] [stderr]   Downloaded deflate v0.7.20
[INFO] [stderr]   Downloaded gif v0.10.3
[INFO] [stderr]   Downloaded color_quant v1.1.0
[INFO] [stderr]   Downloaded inflate v0.4.5
[INFO] [stderr]   Downloaded num-derive v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56cefeb64c68c372765c163e19db648523ed0875cbc03dc7eb4f30d6599b5ce7
[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" "56cefeb64c68c372765c163e19db648523ed0875cbc03dc7eb4f30d6599b5ce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56cefeb64c68c372765c163e19db648523ed0875cbc03dc7eb4f30d6599b5ce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56cefeb64c68c372765c163e19db648523ed0875cbc03dc7eb4f30d6599b5ce7", kill_on_drop: false }`
[INFO] [stdout] 56cefeb64c68c372765c163e19db648523ed0875cbc03dc7eb4f30d6599b5ce7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a77862c53d6aaa6bd1e4fc8ff4e6db368d50f0990af6b5a92223989207cfe90
[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" "9a77862c53d6aaa6bd1e4fc8ff4e6db368d50f0990af6b5a92223989207cfe90", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking tiff v0.2.2
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking looke v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/diff.rs:45:32
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub type PixelComparator = Box<Fn(RgbaTuple, RgbaTuple) -> bool>;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(RgbaTuple, RgbaTuple) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/diff.rs:45:32
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub type PixelComparator = Box<Fn(RgbaTuple, RgbaTuple) -> bool>;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(RgbaTuple, RgbaTuple) -> bool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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 46.57s
[INFO] running `Command { std: "docker" "inspect" "9a77862c53d6aaa6bd1e4fc8ff4e6db368d50f0990af6b5a92223989207cfe90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a77862c53d6aaa6bd1e4fc8ff4e6db368d50f0990af6b5a92223989207cfe90", kill_on_drop: false }`
[INFO] [stdout] 9a77862c53d6aaa6bd1e4fc8ff4e6db368d50f0990af6b5a92223989207cfe90