[INFO] fetching crate serde_python 0.1.1...
[INFO] checking serde_python-0.1.1 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] extracting crate serde_python 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate serde_python 0.1.1 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_python 0.1.1
[INFO] finished tweaking crates.io crate serde_python 0.1.1
[INFO] tweaked toml for crates.io crate serde_python 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "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] dc7e682bc92b65ad7c67c3fbe229b0da0119fdf4ad77b87dad09f30d86d0bb4c
[INFO] running `Command { std: "docker" "start" "-a" "dc7e682bc92b65ad7c67c3fbe229b0da0119fdf4ad77b87dad09f30d86d0bb4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc7e682bc92b65ad7c67c3fbe229b0da0119fdf4ad77b87dad09f30d86d0bb4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc7e682bc92b65ad7c67c3fbe229b0da0119fdf4ad77b87dad09f30d86d0bb4c", kill_on_drop: false }`
[INFO] [stdout] dc7e682bc92b65ad7c67c3fbe229b0da0119fdf4ad77b87dad09f30d86d0bb4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb89cfde34bf3c54f8db7e7c3f0472613f2f0718b5f0ee90297919aaa33541d7
[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" "fb89cfde34bf3c54f8db7e7c3f0472613f2f0718b5f0ee90297919aaa33541d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.7.0
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cpython v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking heck v0.3.2
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling serde_python_derive v0.1.1
[INFO] [stderr]    Compiling python3-sys v0.2.1
[INFO] [stderr]     Checking serde_python v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.55s
[INFO] running `Command { std: "docker" "inspect" "fb89cfde34bf3c54f8db7e7c3f0472613f2f0718b5f0ee90297919aaa33541d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb89cfde34bf3c54f8db7e7c3f0472613f2f0718b5f0ee90297919aaa33541d7", kill_on_drop: false }`
[INFO] [stdout] fb89cfde34bf3c54f8db7e7c3f0472613f2f0718b5f0ee90297919aaa33541d7