[INFO] fetching crate pytrace 0.3.3...
[INFO] testing pytrace-0.3.3 against 1.95.0 for beta-1.96-2
[INFO] extracting crate pytrace 0.3.3 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate pytrace 0.3.3
[INFO] finished tweaking crates.io crate pytrace 0.3.3
[INFO] tweaked toml for crates.io crate pytrace 0.3.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pytrace 0.3.3 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 54 packages to latest compatible versions
[INFO] [stderr]       Adding ctrlc v3.1.10 (available: v3.5.2)
[INFO] [stderr]       Adding indoc-impl v0.3.6 (available: v0.3.7)
[INFO] [stderr]       Adding pyo3 v0.10.1 (available: v0.28.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctrlc v3.1.10
[INFO] [stderr]   Downloaded parking_lot_core v0.7.3
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.10.1
[INFO] [stderr]   Downloaded pyo3cls v0.10.1
[INFO] [stderr]   Downloaded parking_lot v0.10.2
[INFO] [stderr]   Downloaded pytrace_core v0.2.5
[INFO] [stderr]   Downloaded nix v0.22.3
[INFO] [stderr]   Downloaded pyo3 v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cfe58a40d5bb24ede8c3c2349e599148cc1c320ad50529c155640e453b2113e0
[INFO] running `Command { std: "docker" "start" "-a" "cfe58a40d5bb24ede8c3c2349e599148cc1c320ad50529c155640e453b2113e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cfe58a40d5bb24ede8c3c2349e599148cc1c320ad50529c155640e453b2113e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfe58a40d5bb24ede8c3c2349e599148cc1c320ad50529c155640e453b2113e0", kill_on_drop: false }`
[INFO] [stdout] cfe58a40d5bb24ede8c3c2349e599148cc1c320ad50529c155640e453b2113e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 282c3607c81deae436bbab2b1f125e6b186d05d917320bf5723594a7f93349ce
[INFO] running `Command { std: "docker" "start" "-a" "282c3607c81deae436bbab2b1f125e6b186d05d917320bf5723594a7f93349ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling pyo3 v0.10.1
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.3
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling pyo3-derive-backend v0.10.1
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling pytrace_core v0.2.5
[INFO] [stderr]    Compiling nix v0.22.3
[INFO] [stderr] error: failed to run custom build command for `pyo3 v0.10.1`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/pyo3-6711c15931e37f34/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: "PyO3 requires a nightly or dev version of Rust."
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "282c3607c81deae436bbab2b1f125e6b186d05d917320bf5723594a7f93349ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "282c3607c81deae436bbab2b1f125e6b186d05d917320bf5723594a7f93349ce", kill_on_drop: false }`
[INFO] [stdout] 282c3607c81deae436bbab2b1f125e6b186d05d917320bf5723594a7f93349ce
