[INFO] fetching crate skeptic 0.13.6...
[INFO] checking skeptic-0.13.6 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate skeptic 0.13.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate skeptic 0.13.6 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate skeptic 0.13.6
[INFO] finished tweaking crates.io crate skeptic 0.13.6
[INFO] tweaked toml for crates.io crate skeptic 0.13.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7be9daa2bbb21d440d8893e43beb55f2a4edb49695b1748ff3936c6121e27139
[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" "7be9daa2bbb21d440d8893e43beb55f2a4edb49695b1748ff3936c6121e27139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7be9daa2bbb21d440d8893e43beb55f2a4edb49695b1748ff3936c6121e27139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7be9daa2bbb21d440d8893e43beb55f2a4edb49695b1748ff3936c6121e27139", kill_on_drop: false }`
[INFO] [stdout] 7be9daa2bbb21d440d8893e43beb55f2a4edb49695b1748ff3936c6121e27139
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 8a057a9859404cdbad5ae2fc66fb1a1c2d95d46d86dbe256f5c9544cb5130cc9
[INFO] running `Command { std: "docker" "start" "-a" "8a057a9859404cdbad5ae2fc66fb1a1c2d95d46d86dbe256f5c9544cb5130cc9", kill_on_drop: false }`
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking unindent v0.1.7
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking pulldown-cmark v0.8.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking cargo-platform v0.1.1
[INFO] [stderr]     Checking cargo_metadata v0.12.3
[INFO] [stderr]     Checking skeptic v0.13.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.31s
[INFO] running `Command { std: "docker" "inspect" "8a057a9859404cdbad5ae2fc66fb1a1c2d95d46d86dbe256f5c9544cb5130cc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a057a9859404cdbad5ae2fc66fb1a1c2d95d46d86dbe256f5c9544cb5130cc9", kill_on_drop: false }`
[INFO] [stdout] 8a057a9859404cdbad5ae2fc66fb1a1c2d95d46d86dbe256f5c9544cb5130cc9