[INFO] fetching crate substrate-serializer 1.0.0...
[INFO] checking substrate-serializer-1.0.0 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate substrate-serializer 1.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate substrate-serializer 1.0.0 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate substrate-serializer 1.0.0
[INFO] finished tweaking crates.io crate substrate-serializer 1.0.0
[INFO] tweaked toml for crates.io crate substrate-serializer 1.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "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" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "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] 7a177ad9a8240e03997d62e0e4078bc9b6bb0f21fa42d9e406a5b3fba7b0d324
[INFO] running `Command { std: "docker" "start" "-a" "7a177ad9a8240e03997d62e0e4078bc9b6bb0f21fa42d9e406a5b3fba7b0d324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a177ad9a8240e03997d62e0e4078bc9b6bb0f21fa42d9e406a5b3fba7b0d324", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a177ad9a8240e03997d62e0e4078bc9b6bb0f21fa42d9e406a5b3fba7b0d324", kill_on_drop: false }`
[INFO] [stdout] 7a177ad9a8240e03997d62e0e4078bc9b6bb0f21fa42d9e406a5b3fba7b0d324
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75d3f63d817fd414d63c362aa8ea769c40e1dbb06bf5d98dda6274945de71c48
[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" "75d3f63d817fd414d63c362aa8ea769c40e1dbb06bf5d98dda6274945de71c48", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]     Checking substrate-serializer v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.97s
[INFO] running `Command { std: "docker" "inspect" "75d3f63d817fd414d63c362aa8ea769c40e1dbb06bf5d98dda6274945de71c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75d3f63d817fd414d63c362aa8ea769c40e1dbb06bf5d98dda6274945de71c48", kill_on_drop: false }`
[INFO] [stdout] 75d3f63d817fd414d63c362aa8ea769c40e1dbb06bf5d98dda6274945de71c48