[INFO] updating cached repository https://github.com/programmerjake/pyo3_bigint_overflow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e03b67ef43976e01950811039cc78e1490973ad
[INFO] checking programmerjake/pyo3_bigint_overflow against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprogrammerjake%2Fpyo3_bigint_overflow" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/programmerjake/pyo3_bigint_overflow on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/programmerjake/pyo3_bigint_overflow
[INFO] finished tweaking git repo https://github.com/programmerjake/pyo3_bigint_overflow
[INFO] tweaked toml for git repo https://github.com/programmerjake/pyo3_bigint_overflow written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/programmerjake/pyo3_bigint_overflow already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad00d6e2e02f80af7b3f21b8a1f29f9c3cb87c42ea9415abf03391bbcf851c32
[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" "ad00d6e2e02f80af7b3f21b8a1f29f9c3cb87c42ea9415abf03391bbcf851c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad00d6e2e02f80af7b3f21b8a1f29f9c3cb87c42ea9415abf03391bbcf851c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad00d6e2e02f80af7b3f21b8a1f29f9c3cb87c42ea9415abf03391bbcf851c32", kill_on_drop: false }`
[INFO] [stdout] ad00d6e2e02f80af7b3f21b8a1f29f9c3cb87c42ea9415abf03391bbcf851c32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 016fa8b04da1402b2f0f7b013d7d0bbe9344e3616529104c868f489c61f6fa8e
[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" "016fa8b04da1402b2f0f7b013d7d0bbe9344e3616529104c868f489c61f6fa8e", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling pyo3-derive-backend v0.8.1 (https://github.com/PyO3/pyo3.git#c7f3cde9)
[INFO] [stderr]    Compiling proc-macro-hack v0.5.10
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling ctor v0.1.12
[INFO] [stderr]    Compiling inventory-impl v0.1.4
[INFO] [stderr]    Compiling pyo3cls v0.8.1 (https://github.com/PyO3/pyo3.git#c7f3cde9)
[INFO] [stderr]     Checking inventory v0.1.4
[INFO] [stderr]    Compiling paste-impl v0.1.6
[INFO] [stderr]    Compiling indoc-impl v0.3.4
[INFO] [stderr]     Checking indoc v0.3.4
[INFO] [stderr]     Checking paste v0.1.6
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling pyo3 v0.8.1 (https://github.com/PyO3/pyo3.git#c7f3cde9)
[INFO] [stderr]     Checking pyo3_bigint_overflow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "016fa8b04da1402b2f0f7b013d7d0bbe9344e3616529104c868f489c61f6fa8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "016fa8b04da1402b2f0f7b013d7d0bbe9344e3616529104c868f489c61f6fa8e", kill_on_drop: false }`
[INFO] [stdout] 016fa8b04da1402b2f0f7b013d7d0bbe9344e3616529104c868f489c61f6fa8e