[INFO] cloning repository https://github.com/Sighery/mandelbrot-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sighery/mandelbrot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSighery%2Fmandelbrot-rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSighery%2Fmandelbrot-rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b74825a555aae7f93ab641991f5dcb24b872f74f
[INFO] checking Sighery/mandelbrot-rust against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSighery%2Fmandelbrot-rust" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sighery/mandelbrot-rust on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Sighery/mandelbrot-rust
[INFO] finished tweaking git repo https://github.com/Sighery/mandelbrot-rust
[INFO] tweaked toml for git repo https://github.com/Sighery/mandelbrot-rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/Sighery/mandelbrot-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4ba8799d1ef77d218789d2e5d81f77002d346d30656fc4ee3ffba23332f33dd8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "4ba8799d1ef77d218789d2e5d81f77002d346d30656fc4ee3ffba23332f33dd8"`
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `square_loop`
[INFO] [stderr]    --> src/main.rs:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn square_loop(mut x: f64) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `square_add_loop`
[INFO] [stderr]    --> src/main.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | fn square_add_loop(c: f64) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `square_loop`
[INFO] [stderr]    --> src/main.rs:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn square_loop(mut x: f64) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `square_add_loop`
[INFO] [stderr]    --> src/main.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | fn square_add_loop(c: f64) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.52s
[INFO] running `"docker" "inspect" "4ba8799d1ef77d218789d2e5d81f77002d346d30656fc4ee3ffba23332f33dd8"`
[INFO] running `"docker" "rm" "-f" "4ba8799d1ef77d218789d2e5d81f77002d346d30656fc4ee3ffba23332f33dd8"`
[INFO] [stdout] 4ba8799d1ef77d218789d2e5d81f77002d346d30656fc4ee3ffba23332f33dd8