[INFO] fetching crate unslip 0.1.0...
[INFO] checking unslip-0.1.0 against beta for pr-78714
[INFO] extracting crate unslip 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate unslip 0.1.0 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 unslip 0.1.0
[INFO] finished tweaking crates.io crate unslip 0.1.0
[INFO] tweaked toml for crates.io crate unslip 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate unslip 0.1.0 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6bb00807bf25330679d0f393205cf5fcae306616e2f82ef33a4104904cc6074
[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" "f6bb00807bf25330679d0f393205cf5fcae306616e2f82ef33a4104904cc6074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6bb00807bf25330679d0f393205cf5fcae306616e2f82ef33a4104904cc6074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6bb00807bf25330679d0f393205cf5fcae306616e2f82ef33a4104904cc6074", kill_on_drop: false }`
[INFO] [stdout] f6bb00807bf25330679d0f393205cf5fcae306616e2f82ef33a4104904cc6074
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/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] ce55e0e45bce8f5f44db9f0687b676d1b91a680660dbc88715f9c4581cb3bf3d
[INFO] running `Command { std: "docker" "start" "-a" "ce55e0e45bce8f5f44db9f0687b676d1b91a680660dbc88715f9c4581cb3bf3d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking aes-ctr v0.3.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking unslip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.20s
[INFO] running `Command { std: "docker" "inspect" "ce55e0e45bce8f5f44db9f0687b676d1b91a680660dbc88715f9c4581cb3bf3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce55e0e45bce8f5f44db9f0687b676d1b91a680660dbc88715f9c4581cb3bf3d", kill_on_drop: false }`
[INFO] [stdout] ce55e0e45bce8f5f44db9f0687b676d1b91a680660dbc88715f9c4581cb3bf3d