[INFO] cloning repository https://github.com/DominikRusso/rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DominikRusso/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDominikRusso%2Frustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDominikRusso%2Frustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11a17d9c736c9f444c53495335a0fa8f15d05f3b
[INFO] checking DominikRusso/rustlings against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDominikRusso%2Frustlings" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DominikRusso/rustlings on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DominikRusso/rustlings
[INFO] finished tweaking git repo https://github.com/DominikRusso/rustlings
[INFO] tweaked toml for git repo https://github.com/DominikRusso/rustlings written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/DominikRusso/rustlings already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1e2ffe49c059be0e78946934ac522177dac52b9123376c2b2fd3cf9491993e7
[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" "d1e2ffe49c059be0e78946934ac522177dac52b9123376c2b2fd3cf9491993e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1e2ffe49c059be0e78946934ac522177dac52b9123376c2b2fd3cf9491993e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1e2ffe49c059be0e78946934ac522177dac52b9123376c2b2fd3cf9491993e7", kill_on_drop: false }`
[INFO] [stdout] d1e2ffe49c059be0e78946934ac522177dac52b9123376c2b2fd3cf9491993e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3e2de653e7ab7ec18c5e0e8371f7e9e03d1a7cf0fff1ce789f71aa781f85a06
[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" "b3e2de653e7ab7ec18c5e0e8371f7e9e03d1a7cf0fff1ce789f71aa781f85a06", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking rustlings v4.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.17s
[INFO] running `Command { std: "docker" "inspect" "b3e2de653e7ab7ec18c5e0e8371f7e9e03d1a7cf0fff1ce789f71aa781f85a06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3e2de653e7ab7ec18c5e0e8371f7e9e03d1a7cf0fff1ce789f71aa781f85a06", kill_on_drop: false }`
[INFO] [stdout] b3e2de653e7ab7ec18c5e0e8371f7e9e03d1a7cf0fff1ce789f71aa781f85a06