[INFO] cloning repository https://github.com/mcstrugs/mandelbrot-rust-fast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mcstrugs/mandelbrot-rust-fast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcstrugs%2Fmandelbrot-rust-fast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcstrugs%2Fmandelbrot-rust-fast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac0801d4b83ee2ef96c7e3a1bc1e36339e00f472
[INFO] testing mcstrugs/mandelbrot-rust-fast against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcstrugs%2Fmandelbrot-rust-fast" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mcstrugs/mandelbrot-rust-fast on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mcstrugs/mandelbrot-rust-fast
[INFO] finished tweaking git repo https://github.com/mcstrugs/mandelbrot-rust-fast
[INFO] tweaked toml for git repo https://github.com/mcstrugs/mandelbrot-rust-fast written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mcstrugs/mandelbrot-rust-fast already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4179ae2f8f3629cf3c048ffda22fe6c434fcb28baf50c27debac73b732ac29c4
[INFO] running `Command { std: "docker" "start" "-a" "4179ae2f8f3629cf3c048ffda22fe6c434fcb28baf50c27debac73b732ac29c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4179ae2f8f3629cf3c048ffda22fe6c434fcb28baf50c27debac73b732ac29c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4179ae2f8f3629cf3c048ffda22fe6c434fcb28baf50c27debac73b732ac29c4", kill_on_drop: false }`
[INFO] [stdout] 4179ae2f8f3629cf3c048ffda22fe6c434fcb28baf50c27debac73b732ac29c4
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 752fa811ac0bf127f8a0507230079de4145b3da1da632eaba43801ae687b5b54
[INFO] running `Command { std: "docker" "start" "-a" "752fa811ac0bf127f8a0507230079de4145b3da1da632eaba43801ae687b5b54", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.4
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling mandelbrot-ints v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `print_set`
[INFO] [stdout]   --> src/main.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn print_set(set: Vec<i32>,w: u32, h: u32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.25s
[INFO] running `Command { std: "docker" "inspect" "752fa811ac0bf127f8a0507230079de4145b3da1da632eaba43801ae687b5b54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752fa811ac0bf127f8a0507230079de4145b3da1da632eaba43801ae687b5b54", kill_on_drop: false }`
[INFO] [stdout] 752fa811ac0bf127f8a0507230079de4145b3da1da632eaba43801ae687b5b54
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 233f28d4da5ac19973a3f900d6a1d466daf93ab0cdadb119cff3fae0644756ca
[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" "233f28d4da5ac19973a3f900d6a1d466daf93ab0cdadb119cff3fae0644756ca", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mandelbrot-ints v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `print_set`
[INFO] [stdout]   --> src/main.rs:76:4
[INFO] [stdout]    |
[INFO] [stdout] 76 | fn print_set(set: Vec<i32>,w: u32, h: u32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.88s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/mandelbrot_ints-547ba479d6ff1215)
[INFO] running `Command { std: "docker" "inspect" "233f28d4da5ac19973a3f900d6a1d466daf93ab0cdadb119cff3fae0644756ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "233f28d4da5ac19973a3f900d6a1d466daf93ab0cdadb119cff3fae0644756ca", kill_on_drop: false }`
[INFO] [stdout] 233f28d4da5ac19973a3f900d6a1d466daf93ab0cdadb119cff3fae0644756ca
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a357b63f510f0281a46c6796981dee21db6c40ab87423baf9904cd3be88a0fb
[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" "1a357b63f510f0281a46c6796981dee21db6c40ab87423baf9904cd3be88a0fb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `print_set`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:76:4
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 76 | fn print_set(set: Vec<i32>,w: u32, h: u32) {
[INFO] [stdout] 
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mandelbrot-ints` (bin "mandelbrot-ints" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mandelbrot_ints-547ba479d6ff1215)
[INFO] running `Command { std: "docker" "inspect" "1a357b63f510f0281a46c6796981dee21db6c40ab87423baf9904cd3be88a0fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a357b63f510f0281a46c6796981dee21db6c40ab87423baf9904cd3be88a0fb", kill_on_drop: false }`
[INFO] [stdout] 1a357b63f510f0281a46c6796981dee21db6c40ab87423baf9904cd3be88a0fb