[INFO] cloning repository https://github.com/Laastine/ring-buffer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Laastine/ring-buffer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLaastine%2Fring-buffer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLaastine%2Fring-buffer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ae2db0e0754f2cf4ff5e9972a9a0fe1bf6a81e4
[INFO] checking Laastine/ring-buffer against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLaastine%2Fring-buffer" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Laastine/ring-buffer on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Laastine/ring-buffer
[INFO] finished tweaking git repo https://github.com/Laastine/ring-buffer
[INFO] tweaked toml for git repo https://github.com/Laastine/ring-buffer written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Laastine/ring-buffer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded shared_memory v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 685360a3337bdb26acecdb4acb01978919c5c0bcf420460ee87f3b2cae0c5438
[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" "685360a3337bdb26acecdb4acb01978919c5c0bcf420460ee87f3b2cae0c5438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "685360a3337bdb26acecdb4acb01978919c5c0bcf420460ee87f3b2cae0c5438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "685360a3337bdb26acecdb4acb01978919c5c0bcf420460ee87f3b2cae0c5438", kill_on_drop: false }`
[INFO] [stdout] 685360a3337bdb26acecdb4acb01978919c5c0bcf420460ee87f3b2cae0c5438
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b78c0c4d83d5cd34b758520dc09d4a0f6fb9723992c2853ba3e2cd88c9dc9bed
[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" "b78c0c4d83d5cd34b758520dc09d4a0f6fb9723992c2853ba3e2cd88c9dc9bed", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking memrange v0.1.3
[INFO] [stderr]     Checking theban_interval_tree v0.7.1
[INFO] [stderr]     Checking shared_memory v0.8.1
[INFO] [stderr]     Checking ring-buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.75s
[INFO] running `Command { std: "docker" "inspect" "b78c0c4d83d5cd34b758520dc09d4a0f6fb9723992c2853ba3e2cd88c9dc9bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b78c0c4d83d5cd34b758520dc09d4a0f6fb9723992c2853ba3e2cd88c9dc9bed", kill_on_drop: false }`
[INFO] [stdout] b78c0c4d83d5cd34b758520dc09d4a0f6fb9723992c2853ba3e2cd88c9dc9bed