[INFO] fetching crate horrorshow 0.8.3...
[INFO] checking horrorshow-0.8.3 against try#6024cfef3a82f9a7688f07054f1650081bad3af5 for pr-74130
[INFO] extracting crate horrorshow 0.8.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate horrorshow 0.8.3 on toolchain 6024cfef3a82f9a7688f07054f1650081bad3af5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate horrorshow 0.8.3
[INFO] finished tweaking crates.io crate horrorshow 0.8.3
[INFO] tweaked toml for crates.io crate horrorshow 0.8.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate horrorshow 0.8.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "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] a0704ec9ad248ee4cfa32621cdbec5ac68c28abaaecf079a38914d1a692fffe9
[INFO] running `Command { std: "docker" "start" "-a" "a0704ec9ad248ee4cfa32621cdbec5ac68c28abaaecf079a38914d1a692fffe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0704ec9ad248ee4cfa32621cdbec5ac68c28abaaecf079a38914d1a692fffe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0704ec9ad248ee4cfa32621cdbec5ac68c28abaaecf079a38914d1a692fffe9", kill_on_drop: false }`
[INFO] [stdout] a0704ec9ad248ee4cfa32621cdbec5ac68c28abaaecf079a38914d1a692fffe9
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7d6559d31e03303c89d41559e45b736652a7c6010a054294a02bd64f29a21c8
[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" "f7d6559d31e03303c89d41559e45b736652a7c6010a054294a02bd64f29a21c8", kill_on_drop: false }`
[INFO] [stderr]     Checking horrorshow v0.8.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "f7d6559d31e03303c89d41559e45b736652a7c6010a054294a02bd64f29a21c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7d6559d31e03303c89d41559e45b736652a7c6010a054294a02bd64f29a21c8", kill_on_drop: false }`
[INFO] [stdout] f7d6559d31e03303c89d41559e45b736652a7c6010a054294a02bd64f29a21c8