[INFO] cloning repository https://github.com/Riptawr/mandel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Riptawr/mandel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiptawr%2Fmandel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiptawr%2Fmandel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] beab51a78b00a24fe721f50cb12931c546d394fe
[INFO] checking Riptawr/mandel against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiptawr%2Fmandel" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Riptawr/mandel on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Riptawr/mandel
[INFO] finished tweaking git repo https://github.com/Riptawr/mandel
[INFO] tweaked toml for git repo https://github.com/Riptawr/mandel written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Riptawr/mandel already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 046af4b0c2b9aaf1674a2c6aac5fb53e63b6bdf7b54a450f6222d1abc655694f
[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" "046af4b0c2b9aaf1674a2c6aac5fb53e63b6bdf7b54a450f6222d1abc655694f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "046af4b0c2b9aaf1674a2c6aac5fb53e63b6bdf7b54a450f6222d1abc655694f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "046af4b0c2b9aaf1674a2c6aac5fb53e63b6bdf7b54a450f6222d1abc655694f", kill_on_drop: false }`
[INFO] [stdout] 046af4b0c2b9aaf1674a2c6aac5fb53e63b6bdf7b54a450f6222d1abc655694f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77649b0649be5e36b065d3b8efea5f2519bfb114c1450ddf9aa49ab58fc1f75a
[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" "77649b0649be5e36b065d3b8efea5f2519bfb114c1450ddf9aa49ab58fc1f75a", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.32
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking crossbeam v0.2.10
[INFO] [stderr]     Checking png v0.7.0
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking rayon-core v1.2.1
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking num-bigint v0.1.40
[INFO] [stderr]     Checking num-complex v0.1.40
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]     Checking num-rational v0.1.39
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking image v0.13.0
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.17s
[INFO] running `Command { std: "docker" "inspect" "77649b0649be5e36b065d3b8efea5f2519bfb114c1450ddf9aa49ab58fc1f75a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77649b0649be5e36b065d3b8efea5f2519bfb114c1450ddf9aa49ab58fc1f75a", kill_on_drop: false }`
[INFO] [stdout] 77649b0649be5e36b065d3b8efea5f2519bfb114c1450ddf9aa49ab58fc1f75a