[INFO] fetching crate penlib 0.0.4...
[INFO] checking penlib-0.0.4 against beta for pr-78714
[INFO] extracting crate penlib 0.0.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate penlib 0.0.4 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate penlib 0.0.4
[INFO] finished tweaking crates.io crate penlib 0.0.4
[INFO] tweaked toml for crates.io crate penlib 0.0.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+beta" "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] 6bb8a508da6b65d8b7727519a6ccac62270671b5054a29d3a413fbbbfed3ecc5
[INFO] running `Command { std: "docker" "start" "-a" "6bb8a508da6b65d8b7727519a6ccac62270671b5054a29d3a413fbbbfed3ecc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bb8a508da6b65d8b7727519a6ccac62270671b5054a29d3a413fbbbfed3ecc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bb8a508da6b65d8b7727519a6ccac62270671b5054a29d3a413fbbbfed3ecc5", kill_on_drop: false }`
[INFO] [stdout] 6bb8a508da6b65d8b7727519a6ccac62270671b5054a29d3a413fbbbfed3ecc5
[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" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 21ba5f79eb2dc4b37ca4fd386e9f1af8a3366a1988ddfb1f3979d8413b72b510
[INFO] running `Command { std: "docker" "start" "-a" "21ba5f79eb2dc4b37ca4fd386e9f1af8a3366a1988ddfb1f3979d8413b72b510", kill_on_drop: false }`
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]     Checking penlib v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.02s
[INFO] running `Command { std: "docker" "inspect" "21ba5f79eb2dc4b37ca4fd386e9f1af8a3366a1988ddfb1f3979d8413b72b510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21ba5f79eb2dc4b37ca4fd386e9f1af8a3366a1988ddfb1f3979d8413b72b510", kill_on_drop: false }`
[INFO] [stdout] 21ba5f79eb2dc4b37ca4fd386e9f1af8a3366a1988ddfb1f3979d8413b72b510