[INFO] fetching crate scanner-rust 2.0.13...
[INFO] checking scanner-rust-2.0.13 against beta for pr-78714
[INFO] extracting crate scanner-rust 2.0.13 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate scanner-rust 2.0.13 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 scanner-rust 2.0.13
[INFO] finished tweaking crates.io crate scanner-rust 2.0.13
[INFO] tweaked toml for crates.io crate scanner-rust 2.0.13 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate scanner-rust 2.0.13 already has a lockfile, it will not be regenerated
[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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] d533edb53e623e1e5bb9c5cfd8dda770247e853505f4034944aa9abd58b732b8
[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" "d533edb53e623e1e5bb9c5cfd8dda770247e853505f4034944aa9abd58b732b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d533edb53e623e1e5bb9c5cfd8dda770247e853505f4034944aa9abd58b732b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d533edb53e623e1e5bb9c5cfd8dda770247e853505f4034944aa9abd58b732b8", kill_on_drop: false }`
[INFO] [stdout] d533edb53e623e1e5bb9c5cfd8dda770247e853505f4034944aa9abd58b732b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 6180287e8e091131130a78361b0d865feeb1437bd7847d40f3188b35657cdda1
[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" "6180287e8e091131130a78361b0d865feeb1437bd7847d40f3188b35657cdda1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.15
[INFO] [stderr]     Checking utf8-width v0.1.0
[INFO] [stderr]     Checking generic-array v0.14.1
[INFO] [stderr]    Compiling educe v0.4.2
[INFO] [stderr]     Checking scanner-rust v2.0.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.44s
[INFO] running `Command { std: "docker" "inspect" "6180287e8e091131130a78361b0d865feeb1437bd7847d40f3188b35657cdda1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6180287e8e091131130a78361b0d865feeb1437bd7847d40f3188b35657cdda1", kill_on_drop: false }`
[INFO] [stdout] 6180287e8e091131130a78361b0d865feeb1437bd7847d40f3188b35657cdda1