[INFO] fetching crate arcrs 0.1.1-alpha.7...
[INFO] checking arcrs-0.1.1-alpha.7 against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] extracting crate arcrs 0.1.1-alpha.7 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate arcrs 0.1.1-alpha.7 on toolchain 5a45ab9738330fb317d49e3594c2db5248b1e971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arcrs 0.1.1-alpha.7
[INFO] finished tweaking crates.io crate arcrs 0.1.1-alpha.7
[INFO] tweaked toml for crates.io crate arcrs 0.1.1-alpha.7 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages to latest compatible versions
[INFO] [stderr]       Adding indoc-impl v0.3.6 (available: v0.3.7)
[INFO] [stderr]       Adding pyo3 v0.12.4 (available: v0.23.4)
[INFO] [stderr]       Adding pyo3-derive-backend v0.12.4 (available: v0.12.5)
[INFO] [stderr]       Adding pyo3cls v0.12.4 (available: v0.12.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ghost v0.1.18
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.12.4
[INFO] [stderr]   Downloaded pyo3cls v0.12.4
[INFO] [stderr]   Downloaded pyo3 v0.12.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df5150418baf3bcae2181a4234928356202ebde5301501a3ec785d4853cd0bee
[INFO] running `Command { std: "docker" "start" "-a" "df5150418baf3bcae2181a4234928356202ebde5301501a3ec785d4853cd0bee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df5150418baf3bcae2181a4234928356202ebde5301501a3ec785d4853cd0bee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df5150418baf3bcae2181a4234928356202ebde5301501a3ec785d4853cd0bee", kill_on_drop: false }`
[INFO] [stdout] df5150418baf3bcae2181a4234928356202ebde5301501a3ec785d4853cd0bee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8ee60527d43e73b877b265a519cd85043c00a3598708be1bc394140ab69fc7f
[INFO] running `Command { std: "docker" "start" "-a" "f8ee60527d43e73b877b265a519cd85043c00a3598708be1bc394140ab69fc7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]    Compiling pyo3 v0.12.4
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling ghost v0.1.18
[INFO] [stderr]    Compiling pyo3-derive-backend v0.12.4
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]    Compiling pyo3cls v0.12.4
[INFO] [stderr]     Checking arcrs v0.1.1-alpha.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `create_features_input_parameter` is never used
[INFO] [stdout]    --> src/gp.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn create_features_input_parameter(py: Python) -> PyResult<PyObject> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_features_output_parameter` is never used
[INFO] [stdout]    --> src/gp.rs:147:4
[INFO] [stdout]     |
[INFO] [stdout] 147 | fn create_features_output_parameter(py: Python) -> PyResult<PyObject> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_features_input_parameter` is never used
[INFO] [stdout]    --> src/gp.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn create_features_input_parameter(py: Python) -> PyResult<PyObject> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_features_output_parameter` is never used
[INFO] [stdout]    --> src/gp.rs:147:4
[INFO] [stdout]     |
[INFO] [stdout] 147 | fn create_features_output_parameter(py: Python) -> PyResult<PyObject> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.28s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: pyo3 v0.12.4, pyo3-derive-backend v0.12.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "f8ee60527d43e73b877b265a519cd85043c00a3598708be1bc394140ab69fc7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8ee60527d43e73b877b265a519cd85043c00a3598708be1bc394140ab69fc7f", kill_on_drop: false }`
[INFO] [stdout] f8ee60527d43e73b877b265a519cd85043c00a3598708be1bc394140ab69fc7f