[INFO] cloning repository https://github.com/andrewwhitehead/ursa-bbs-py
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andrewwhitehead/ursa-bbs-py" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewwhitehead%2Fursa-bbs-py", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewwhitehead%2Fursa-bbs-py'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a557276606a5bc4f480129c92f7b43c8e2fc7b8
[INFO] checking andrewwhitehead/ursa-bbs-py against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewwhitehead%2Fursa-bbs-py" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrewwhitehead/ursa-bbs-py on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking git repo https://github.com/andrewwhitehead/ursa-bbs-py
[INFO] finished tweaking git repo https://github.com/andrewwhitehead/ursa-bbs-py
[INFO] tweaked toml for git repo https://github.com/andrewwhitehead/ursa-bbs-py written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/andrewwhitehead/ursa-bbs-py already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b6d64ea17110cea1d9bfc5c1f34c84e2f63ca8fe83dd82405bbc91696084754
[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" "2b6d64ea17110cea1d9bfc5c1f34c84e2f63ca8fe83dd82405bbc91696084754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b6d64ea17110cea1d9bfc5c1f34c84e2f63ca8fe83dd82405bbc91696084754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b6d64ea17110cea1d9bfc5c1f34c84e2f63ca8fe83dd82405bbc91696084754", kill_on_drop: false }`
[INFO] [stdout] 2b6d64ea17110cea1d9bfc5c1f34c84e2f63ca8fe83dd82405bbc91696084754
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6fd90ab7629d6d286321237ee3c7590ca6f55751e283e41b9533338c82257d9
[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" "b6fd90ab7629d6d286321237ee3c7590ca6f55751e283e41b9533338c82257d9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]    Compiling inventory v0.1.6
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking blake2 v0.8.1
[INFO] [stderr]     Checking hkdf v0.8.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.36
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling pyo3-derive-backend v0.9.2 (https://github.com/PyO3/pyo3?rev=c2b173a14f217506382a9975f1a3bc1e1c451893#c2b173a1)
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling ff_derive-zeroize v0.6.2
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling ctor v0.1.14
[INFO] [stderr]    Compiling indoc-impl v0.3.5
[INFO] [stderr]    Compiling paste-impl v0.1.11
[INFO] [stderr]    Compiling inventory-impl v0.1.6
[INFO] [stderr]     Checking indoc v0.3.5
[INFO] [stderr]    Compiling pyo3cls v0.9.2 (https://github.com/PyO3/pyo3?rev=c2b173a14f217506382a9975f1a3bc1e1c451893#c2b173a1)
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]     Checking paste v0.1.11
[INFO] [stderr]     Checking ff-zeroize v0.6.3
[INFO] [stderr]     Checking pairing-plus v0.19.0
[INFO] [stderr]     Checking bbs v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.51
[INFO] [stderr]    Compiling pyo3 v0.9.2 (https://github.com/PyO3/pyo3?rev=c2b173a14f217506382a9975f1a3bc1e1c451893#c2b173a1)
[INFO] [stderr] error: failed to run custom build command for `pyo3 v0.9.2 (https://github.com/PyO3/pyo3?rev=c2b173a14f217506382a9975f1a3bc1e1c451893#c2b173a1)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/pyo3-fe311033121118cb/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: "PyO3 requires a nightly or dev version of Rust."
[INFO] running `Command { std: "docker" "inspect" "b6fd90ab7629d6d286321237ee3c7590ca6f55751e283e41b9533338c82257d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6fd90ab7629d6d286321237ee3c7590ca6f55751e283e41b9533338c82257d9", kill_on_drop: false }`
[INFO] [stdout] b6fd90ab7629d6d286321237ee3c7590ca6f55751e283e41b9533338c82257d9