[INFO] cloning repository https://github.com/blackaichi/Useful_rust_codes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blackaichi/Useful_rust_codes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblackaichi%2FUseful_rust_codes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblackaichi%2FUseful_rust_codes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e627aa3c90310214c631d47912f8811b0a1e4dc
[INFO] checking blackaichi/Useful_rust_codes against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblackaichi%2FUseful_rust_codes" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blackaichi/Useful_rust_codes on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/blackaichi/Useful_rust_codes
[INFO] finished tweaking git repo https://github.com/blackaichi/Useful_rust_codes
[INFO] tweaked toml for git repo https://github.com/blackaichi/Useful_rust_codes written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/blackaichi/Useful_rust_codes already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "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] 6005475ea375e1f4437072147ab57a638188aa20cf47dd6c73502fc7184d1ca9
[INFO] running `Command { std: "docker" "start" "-a" "6005475ea375e1f4437072147ab57a638188aa20cf47dd6c73502fc7184d1ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6005475ea375e1f4437072147ab57a638188aa20cf47dd6c73502fc7184d1ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6005475ea375e1f4437072147ab57a638188aa20cf47dd6c73502fc7184d1ca9", kill_on_drop: false }`
[INFO] [stdout] 6005475ea375e1f4437072147ab57a638188aa20cf47dd6c73502fc7184d1ca9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4baf8b5e2a315360a075ca137bef69010d3bf01ddea37abef40afbf331ebc5c5
[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" "4baf8b5e2a315360a075ca137bef69010d3bf01ddea37abef40afbf331ebc5c5", kill_on_drop: false }`
[INFO] [stderr]     Checking codes v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "4baf8b5e2a315360a075ca137bef69010d3bf01ddea37abef40afbf331ebc5c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4baf8b5e2a315360a075ca137bef69010d3bf01ddea37abef40afbf331ebc5c5", kill_on_drop: false }`
[INFO] [stdout] 4baf8b5e2a315360a075ca137bef69010d3bf01ddea37abef40afbf331ebc5c5