[INFO] fetching crate feed-rs 0.4.0...
[INFO] checking feed-rs-0.4.0 against beta for pr-78714
[INFO] extracting crate feed-rs 0.4.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate feed-rs 0.4.0 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 feed-rs 0.4.0
[INFO] finished tweaking crates.io crate feed-rs 0.4.0
[INFO] tweaked toml for crates.io crate feed-rs 0.4.0 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 6feab2ae087eb615788c32d353ae8c9e6f4bd8886d35a12d9bbb7a367c0dc759
[INFO] running `Command { std: "docker" "start" "-a" "6feab2ae087eb615788c32d353ae8c9e6f4bd8886d35a12d9bbb7a367c0dc759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6feab2ae087eb615788c32d353ae8c9e6f4bd8886d35a12d9bbb7a367c0dc759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6feab2ae087eb615788c32d353ae8c9e6f4bd8886d35a12d9bbb7a367c0dc759", kill_on_drop: false }`
[INFO] [stdout] 6feab2ae087eb615788c32d353ae8c9e6f4bd8886d35a12d9bbb7a367c0dc759
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] a744c5f2d9bf0636f9f134b20344aa184a21094ba24d4346ea218a042b3249bb
[INFO] running `Command { std: "docker" "start" "-a" "a744c5f2d9bf0636f9f134b20344aa184a21094ba24d4346ea218a042b3249bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking quick-xml v0.18.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking feed-rs v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.62s
[INFO] running `Command { std: "docker" "inspect" "a744c5f2d9bf0636f9f134b20344aa184a21094ba24d4346ea218a042b3249bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a744c5f2d9bf0636f9f134b20344aa184a21094ba24d4346ea218a042b3249bb", kill_on_drop: false }`
[INFO] [stdout] a744c5f2d9bf0636f9f134b20344aa184a21094ba24d4346ea218a042b3249bb