[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#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLaastine%2Fring-buffer" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Laastine/ring-buffer on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", 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-8/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" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytes v0.4.10
[INFO] [stderr]   Downloaded nix v0.10.0
[INFO] [stderr]   Downloaded theban_interval_tree v0.7.1
[INFO] [stderr]   Downloaded memrange v0.1.3
[INFO] [stderr]   Downloaded shared_memory v0.8.1
[INFO] [stderr]   Downloaded nix v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 442bc80d51932c4787626047337f9a765f7f30f0e18e28c086281bfdcb076c12
[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" "442bc80d51932c4787626047337f9a765f7f30f0e18e28c086281bfdcb076c12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "442bc80d51932c4787626047337f9a765f7f30f0e18e28c086281bfdcb076c12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "442bc80d51932c4787626047337f9a765f7f30f0e18e28c086281bfdcb076c12", kill_on_drop: false }`
[INFO] [stdout] 442bc80d51932c4787626047337f9a765f7f30f0e18e28c086281bfdcb076c12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b114b10f6bdbd6d9a544c5390340045dc1197909aaa9273ae5e08a2dac6dba5
[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" "9b114b10f6bdbd6d9a544c5390340045dc1197909aaa9273ae5e08a2dac6dba5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking enum_primitive v0.1.1
[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 11.80s
[INFO] running `Command { std: "docker" "inspect" "9b114b10f6bdbd6d9a544c5390340045dc1197909aaa9273ae5e08a2dac6dba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b114b10f6bdbd6d9a544c5390340045dc1197909aaa9273ae5e08a2dac6dba5", kill_on_drop: false }`
[INFO] [stdout] 9b114b10f6bdbd6d9a544c5390340045dc1197909aaa9273ae5e08a2dac6dba5