[INFO] cloning repository https://github.com/ftlc/Rust-Toy-Language
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ftlc/Rust-Toy-Language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftlc%2FRust-Toy-Language", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftlc%2FRust-Toy-Language'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dde5f00cd3a8a7735bd831d0fedc3d7a1489ce1a
[INFO] checking ftlc/Rust-Toy-Language against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftlc%2FRust-Toy-Language" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ftlc/Rust-Toy-Language on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ftlc/Rust-Toy-Language
[INFO] finished tweaking git repo https://github.com/ftlc/Rust-Toy-Language
[INFO] tweaked toml for git repo https://github.com/ftlc/Rust-Toy-Language written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ftlc/Rust-Toy-Language already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fea5403fee3a2e1b95f3adb9ae134a4ed1d785ec4f028cdefa0e0bfe22a6ca49
[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" "fea5403fee3a2e1b95f3adb9ae134a4ed1d785ec4f028cdefa0e0bfe22a6ca49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fea5403fee3a2e1b95f3adb9ae134a4ed1d785ec4f028cdefa0e0bfe22a6ca49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fea5403fee3a2e1b95f3adb9ae134a4ed1d785ec4f028cdefa0e0bfe22a6ca49", kill_on_drop: false }`
[INFO] [stdout] fea5403fee3a2e1b95f3adb9ae134a4ed1d785ec4f028cdefa0e0bfe22a6ca49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba2bc1977e425a38fe3a2ab1ac8461e42214a4e6587ce8ed8e8052cfdb79c1d5
[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" "ba2bc1977e425a38fe3a2ab1ac8461e42214a4e6587ce8ed8e8052cfdb79c1d5", kill_on_drop: false }`
[INFO] [stderr]     Checking sexp v1.1.4
[INFO] [stderr]     Checking pl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "ba2bc1977e425a38fe3a2ab1ac8461e42214a4e6587ce8ed8e8052cfdb79c1d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba2bc1977e425a38fe3a2ab1ac8461e42214a4e6587ce8ed8e8052cfdb79c1d5", kill_on_drop: false }`
[INFO] [stdout] ba2bc1977e425a38fe3a2ab1ac8461e42214a4e6587ce8ed8e8052cfdb79c1d5