[INFO] cloning repository https://github.com/jbrady42/mandlebrot-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jbrady42/mandlebrot-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjbrady42%2Fmandlebrot-rs"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjbrady42%2Fmandlebrot-rs'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3d993aed47653942d0d2abb200a9275b91034abc
[INFO] checking jbrady42/mandlebrot-rs against master#73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de for pr-68325
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjbrady42%2Fmandlebrot-rs" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jbrady42/mandlebrot-rs on toolchain 73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jbrady42/mandlebrot-rs
[INFO] finished tweaking git repo https://github.com/jbrady42/mandlebrot-rs
[INFO] tweaked toml for git repo https://github.com/jbrady42/mandlebrot-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/jbrady42/mandlebrot-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+73f76b74efcaf21bd5424d87c66cd6ed7fe5c7de" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] da5df108bba96baedd6f56d457bf5f8229ffe678eff5ceb8d71909dacc25e0c9
[INFO] running `"docker" "start" "-a" "da5df108bba96baedd6f56d457bf5f8229ffe678eff5ceb8d71909dacc25e0c9"`
[INFO] [stderr]    Compiling rayon-core v1.6.1
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]    Compiling rug v0.6.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking base64 v0.4.2
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.2.3
[INFO] [stderr]     Checking png v0.15.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.0
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]     Checking rust-crypto v0.2.36
[INFO] [stderr]     Checking random_color v0.4.4
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking num-bigint v0.2.3
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking actix-threadpool v0.1.2
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.1.14
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking actix-codec v0.1.2
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking actix-rt v0.2.6
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking actix-utils v0.4.7
[INFO] [stderr]     Checking rayon v1.2.1
[INFO] [stderr]     Checking actix-server-config v0.1.2
[INFO] [stderr]     Checking trust-dns-proto v0.7.4
[INFO] [stderr]     Checking actix-server v0.6.1
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking actix-testing v0.1.0
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking actix-router v0.1.5
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking trust-dns-resolver v0.11.1
[INFO] [stderr]     Checking image v0.12.4
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]     Checking actix-connect v0.2.5
[INFO] [stderr]     Checking actix-http v0.2.11
[INFO] [stderr]     Checking image-base64 v0.1.0
[INFO] [stderr]     Checking awc v0.2.8
[INFO] [stderr]     Checking actix-web v1.0.9
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `palette`
[INFO] [stderr]   --> src/lib.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         palette: &HashMap<i32, image::Rgb<u8>>,
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_palette`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `palette`
[INFO] [stderr]   --> src/lib.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         palette: &HashMap<i32, image::Rgb<u8>>,
[INFO] [stderr]    |         ^^^^^^^ help: consider prefixing with an underscore: `_palette`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 35s
[INFO] running `"docker" "inspect" "da5df108bba96baedd6f56d457bf5f8229ffe678eff5ceb8d71909dacc25e0c9"`
[INFO] running `"docker" "rm" "-f" "da5df108bba96baedd6f56d457bf5f8229ffe678eff5ceb8d71909dacc25e0c9"`
[INFO] [stdout] da5df108bba96baedd6f56d457bf5f8229ffe678eff5ceb8d71909dacc25e0c9