[INFO] updating cached repository https://github.com/lelandbatey/rust_mandelbrot
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b8ab5693b62ee84ead5f4435ffaa056b97081c2d
[INFO] testing lelandbatey/rust_mandelbrot against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Flelandbatey%2Frust_mandelbrot" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lelandbatey/rust_mandelbrot on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lelandbatey/rust_mandelbrot
[INFO] finished tweaking git repo https://github.com/lelandbatey/rust_mandelbrot
[INFO] tweaked toml for git repo https://github.com/lelandbatey/rust_mandelbrot written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/lelandbatey/rust_mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] b74919f166a4d1c575c2ce41199f27a1a9ed4fe288d792515e30db88f304fadd
[INFO] running `"docker" "start" "-a" "b74919f166a4d1c575c2ce41199f27a1a9ed4fe288d792515e30db88f304fadd"`
[INFO] [stderr]    Compiling mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::cmp;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "b74919f166a4d1c575c2ce41199f27a1a9ed4fe288d792515e30db88f304fadd"`
[INFO] running `"docker" "rm" "-f" "b74919f166a4d1c575c2ce41199f27a1a9ed4fe288d792515e30db88f304fadd"`
[INFO] [stdout] b74919f166a4d1c575c2ce41199f27a1a9ed4fe288d792515e30db88f304fadd
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7e45bbd640a2cdb3521bba0c8ea78ada448e134d6bcbdf33d5b742c1e9f1e6be
[INFO] running `"docker" "start" "-a" "7e45bbd640a2cdb3521bba0c8ea78ada448e134d6bcbdf33d5b742c1e9f1e6be"`
[INFO] [stderr]    Compiling mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::cmp;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "7e45bbd640a2cdb3521bba0c8ea78ada448e134d6bcbdf33d5b742c1e9f1e6be"`
[INFO] running `"docker" "rm" "-f" "7e45bbd640a2cdb3521bba0c8ea78ada448e134d6bcbdf33d5b742c1e9f1e6be"`
[INFO] [stdout] 7e45bbd640a2cdb3521bba0c8ea78ada448e134d6bcbdf33d5b742c1e9f1e6be
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 272cc0a3722a59f2c67d22515e647ea8cc3e222e53f8721a8a1c6dab682aafb3
[INFO] running `"docker" "start" "-a" "272cc0a3722a59f2c67d22515e647ea8cc3e222e53f8721a8a1c6dab682aafb3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mandelbrot-23d0b1da59e123b2
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "272cc0a3722a59f2c67d22515e647ea8cc3e222e53f8721a8a1c6dab682aafb3"`
[INFO] running `"docker" "rm" "-f" "272cc0a3722a59f2c67d22515e647ea8cc3e222e53f8721a8a1c6dab682aafb3"`
[INFO] [stdout] 272cc0a3722a59f2c67d22515e647ea8cc3e222e53f8721a8a1c6dab682aafb3