[INFO] fetching crate lucky 0.0.0...
[INFO] checking lucky-0.0.0 against master#339e19697a39a78f4d669c217b7d21109215de41 for pr-81213
[INFO] extracting crate lucky 0.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate lucky 0.0.0 on toolchain 339e19697a39a78f4d669c217b7d21109215de41
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lucky 0.0.0
[INFO] finished tweaking crates.io crate lucky 0.0.0
[INFO] tweaked toml for crates.io crate lucky 0.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate lucky 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ad316135fcc9519839239de519b73b7a32546f94ef89ce02d4e4d761c1bda1b
[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" "5ad316135fcc9519839239de519b73b7a32546f94ef89ce02d4e4d761c1bda1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ad316135fcc9519839239de519b73b7a32546f94ef89ce02d4e4d761c1bda1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ad316135fcc9519839239de519b73b7a32546f94ef89ce02d4e4d761c1bda1b", kill_on_drop: false }`
[INFO] [stdout] 5ad316135fcc9519839239de519b73b7a32546f94ef89ce02d4e4d761c1bda1b
[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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "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] c7a9cdeb4fe4ffe8c536c58ff981f9f36d660ea32bd25ba1016eb70795106d89
[INFO] running `Command { std: "docker" "start" "-a" "c7a9cdeb4fe4ffe8c536c58ff981f9f36d660ea32bd25ba1016eb70795106d89", kill_on_drop: false }`
[INFO] [stderr]     Checking lucky v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "c7a9cdeb4fe4ffe8c536c58ff981f9f36d660ea32bd25ba1016eb70795106d89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7a9cdeb4fe4ffe8c536c58ff981f9f36d660ea32bd25ba1016eb70795106d89", kill_on_drop: false }`
[INFO] [stdout] c7a9cdeb4fe4ffe8c536c58ff981f9f36d660ea32bd25ba1016eb70795106d89