[INFO] fetching crate serialize_deserialize_u8_i32 0.1.34...
[INFO] checking serialize_deserialize_u8_i32-0.1.34 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate serialize_deserialize_u8_i32 0.1.34 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate serialize_deserialize_u8_i32 0.1.34 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serialize_deserialize_u8_i32 0.1.34
[INFO] finished tweaking crates.io crate serialize_deserialize_u8_i32 0.1.34
[INFO] tweaked toml for crates.io crate serialize_deserialize_u8_i32 0.1.34 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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] a8a5705bd6068d4d88d42010d362f192f0fc5c38b316e9ed89a07f1f4ba1d7d2
[INFO] running `Command { std: "docker" "start" "-a" "a8a5705bd6068d4d88d42010d362f192f0fc5c38b316e9ed89a07f1f4ba1d7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8a5705bd6068d4d88d42010d362f192f0fc5c38b316e9ed89a07f1f4ba1d7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8a5705bd6068d4d88d42010d362f192f0fc5c38b316e9ed89a07f1f4ba1d7d2", kill_on_drop: false }`
[INFO] [stdout] a8a5705bd6068d4d88d42010d362f192f0fc5c38b316e9ed89a07f1f4ba1d7d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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] b242c7a0b1d7b63fab31b5c1363968ed93a0fd13ce2cc9510f993f6be490cd9e
[INFO] running `Command { std: "docker" "start" "-a" "b242c7a0b1d7b63fab31b5c1363968ed93a0fd13ce2cc9510f993f6be490cd9e", kill_on_drop: false }`
[INFO] [stderr]     Checking serialize_deserialize_u8_i32 v0.1.34 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "b242c7a0b1d7b63fab31b5c1363968ed93a0fd13ce2cc9510f993f6be490cd9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b242c7a0b1d7b63fab31b5c1363968ed93a0fd13ce2cc9510f993f6be490cd9e", kill_on_drop: false }`
[INFO] [stdout] b242c7a0b1d7b63fab31b5c1363968ed93a0fd13ce2cc9510f993f6be490cd9e