[INFO] fetching crate rillrate-py 0.40.0...
[INFO] testing rillrate-py-0.40.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate rillrate-py 0.40.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rillrate-py 0.40.0
[INFO] finished tweaking crates.io crate rillrate-py 0.40.0
[INFO] tweaked toml for crates.io crate rillrate-py 0.40.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rillrate-py 0.40.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 293 packages to latest compatible versions
[INFO] [stderr]       Adding indoc-impl v0.3.6 (available: v0.3.7)
[INFO] [stderr]       Adding pyo3 v0.14.5 (available: v0.25.1)
[INFO] [stderr]       Adding rill-protocol v0.40.0 (available: v0.41.0)
[INFO] [stderr]       Adding rillrate v0.40.0 (available: v0.41.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vectorize v0.2.0
[INFO] [stderr]   Downloaded meio-connect v0.94.0
[INFO] [stderr]   Downloaded meio-protocol v0.94.0
[INFO] [stderr]   Downloaded rillrate v0.40.0
[INFO] [stderr]   Downloaded rill-protocol v0.40.0
[INFO] [stderr]   Downloaded meio v0.94.0
[INFO] [stderr]   Downloaded rill-derive v0.40.0
[INFO] [stderr]   Downloaded rill-engine v0.40.0
[INFO] [stderr]   Downloaded rrpack-prime v0.40.0
[INFO] [stderr]   Downloaded pyo3-macros v0.14.5
[INFO] [stderr]   Downloaded notify v5.2.0
[INFO] [stderr]   Downloaded rate-core v0.40.0
[INFO] [stderr]   Downloaded rate-config v0.40.0
[INFO] [stderr]   Downloaded typed-slab v0.1.8
[INFO] [stderr]   Downloaded pyo3-build-config v0.14.5
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.14.5
[INFO] [stderr]   Downloaded pyo3 v0.14.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 921b6e84e54ce4db0aaeff0947efab49d6d77fc963a77605dabe441e2bcd5b4a
[INFO] running `Command { std: "docker" "start" "-a" "921b6e84e54ce4db0aaeff0947efab49d6d77fc963a77605dabe441e2bcd5b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "921b6e84e54ce4db0aaeff0947efab49d6d77fc963a77605dabe441e2bcd5b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "921b6e84e54ce4db0aaeff0947efab49d6d77fc963a77605dabe441e2bcd5b4a", kill_on_drop: false }`
[INFO] [stdout] 921b6e84e54ce4db0aaeff0947efab49d6d77fc963a77605dabe441e2bcd5b4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 784c260b384ab2f316ff12c74f75bf2bc83c84926eb3d06d057346e8082224cf
[INFO] running `Command { std: "docker" "start" "-a" "784c260b384ab2f316ff12c74f75bf2bc83c84926eb3d06d057346e8082224cf", kill_on_drop: false }`
[INFO] [stderr] error: cannot produce cdylib for `rillrate-py v0.40.0 (/opt/rustwide/workdir)` as the target `x86_64-unknown-linux-musl` does not support these crate types
[INFO] running `Command { std: "docker" "inspect" "784c260b384ab2f316ff12c74f75bf2bc83c84926eb3d06d057346e8082224cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "784c260b384ab2f316ff12c74f75bf2bc83c84926eb3d06d057346e8082224cf", kill_on_drop: false }`
[INFO] [stdout] 784c260b384ab2f316ff12c74f75bf2bc83c84926eb3d06d057346e8082224cf