[INFO] fetching crate wasmtime-py 0.15.0...
[INFO] testing wasmtime-py-0.15.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate wasmtime-py 0.15.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate wasmtime-py 0.15.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmtime-py 0.15.0
[INFO] finished tweaking crates.io crate wasmtime-py 0.15.0
[INFO] tweaked toml for crates.io crate wasmtime-py 0.15.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83b0268cc4cb2daaef1631db8011934a19c9df229f3afa816616b2a6e95d0565
[INFO] running `Command { std: "docker" "start" "-a" "83b0268cc4cb2daaef1631db8011934a19c9df229f3afa816616b2a6e95d0565", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83b0268cc4cb2daaef1631db8011934a19c9df229f3afa816616b2a6e95d0565", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83b0268cc4cb2daaef1631db8011934a19c9df229f3afa816616b2a6e95d0565", kill_on_drop: false }`
[INFO] [stdout] 83b0268cc4cb2daaef1631db8011934a19c9df229f3afa816616b2a6e95d0565
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a086a091ba28d0125cefbd1895c5c87fb202a391143f07a4aef7a5ec404b411
[INFO] running `Command { std: "docker" "start" "-a" "9a086a091ba28d0125cefbd1895c5c87fb202a391143f07a4aef7a5ec404b411", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.62.0
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling zstd-safe v2.0.6+zstd.1.4.7
[INFO] [stderr]    Compiling wasmparser v0.51.4
[INFO] [stderr]    Compiling wasmtime-environ v0.15.0
[INFO] [stderr]    Compiling more-asserts v0.2.1
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling wasi-common v0.15.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling wasmtime-wasi v0.15.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling wast v37.0.0
[INFO] [stderr]    Compiling jobserver v0.1.23
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling errno v0.2.7
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling directories v2.0.2
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling yanix v0.15.0
[INFO] [stderr]    Compiling gimli v0.20.0
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling file-per-thread-logger v0.1.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling zstd-sys v1.4.18+zstd.1.4.7
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling raw-cpuid v7.0.4
[INFO] [stderr]    Compiling wasmtime-runtime v0.15.0
[INFO] [stderr]    Compiling object v0.18.0
[INFO] [stderr]    Compiling wat v1.0.39
[INFO] [stderr]    Compiling pyo3-derive-backend v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling scroll_derive v0.10.5
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling pyo3cls v0.8.5
[INFO] [stderr]    Compiling indoc v0.3.6
[INFO] [stderr]    Compiling scroll v0.10.2
[INFO] [stderr]    Compiling goblin v0.1.3
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling witx v0.8.8
[INFO] [stderr]    Compiling wiggle-generate v0.15.0
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling wig v0.15.0
[INFO] [stderr]    Compiling wiggle-macro v0.15.0
[INFO] [stderr]    Compiling wiggle v0.15.0
[INFO] [stderr]    Compiling cranelift-entity v0.62.0
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling string-interner v0.7.1
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling faerie v0.15.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.62.0
[INFO] [stderr]    Compiling cranelift-bforest v0.62.0
[INFO] [stderr]    Compiling pyo3 v0.8.5
[INFO] [stderr] error: failed to run custom build command for `pyo3 v0.8.5`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/pyo3-92dedd9de6023fbd/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Error: pyo3 requires a nightly or dev version of Rust.', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pyo3-0.8.5/build.rs:542:9
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5585a503d430 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x5585a503d430 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5585a503d430 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5585a503d430 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5585a505f1ac - core::fmt::write::h306731c068f7162c
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]      5:     0x5585a503b0e5 - std::io::Write::write_fmt::hd2fa90334eee2a21
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stderr]      6:     0x5585a503f37b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5585a503f37b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5585a503f37b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x5585a503ee51 - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x5585a503fa44 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x5585a4fe8923 - std::panicking::begin_panic::{{closure}}::hdea08c148e029a7d
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:542:9
[INFO] [stderr]     12:     0x5585a50027f9 - std::sys_common::backtrace::__rust_end_short_backtrace::h2c5f19ae73635963
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x5585a4fe8859 - std::panicking::begin_panic::h89d042eb4b6c9602
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:541:12
[INFO] [stderr]     14:     0x5585a4e2e7cd - build_script_build::check_rustc_version::hd110ef0d2a5a5c4a
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pyo3-0.8.5/build.rs:542:9
[INFO] [stderr]     15:     0x5585a4e2eab4 - build_script_build::main::h7add4562f5d8b8ec
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pyo3-0.8.5/build.rs:563:5
[INFO] [stderr]     16:     0x5585a4e40ee2 - core::ops::function::FnOnce::call_once::hef66655733244d4a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     17:     0x5585a4e3be4a - std::sys_common::backtrace::__rust_begin_short_backtrace::hbe0c5b90b0fd2cb6
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     18:     0x5585a4e35646 - std::rt::lang_start::{{closure}}::hcc8138ed540d9e21
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:49:18
[INFO] [stderr]     19:     0x5585a503ff49 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h2aabc384aab89b7b
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     20:     0x5585a503ff49 - std::panicking::try::do_call::hc5fcacb7a85fc7b1
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stderr]     21:     0x5585a503ff49 - std::panicking::try::hb5d9603af3abbe3a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stderr]     22:     0x5585a503ff49 - std::panic::catch_unwind::h98fe6ac3925e64b4
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stderr]     23:     0x5585a503ff49 - std::rt::lang_start_internal::h22ac7383c516f93e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:34:21
[INFO] [stderr]     24:     0x5585a4e35620 - std::rt::lang_start::h8db32ab8ed29fd38
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:48:5
[INFO] [stderr]     25:     0x5585a4e33dfc - main
[INFO] [stderr]     26:     0x7fb0aecc70b3 - __libc_start_main
[INFO] [stderr]     27:     0x5585a4e1ff5e - _start
[INFO] [stderr]     28:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9a086a091ba28d0125cefbd1895c5c87fb202a391143f07a4aef7a5ec404b411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a086a091ba28d0125cefbd1895c5c87fb202a391143f07a4aef7a5ec404b411", kill_on_drop: false }`
[INFO] [stdout] 9a086a091ba28d0125cefbd1895c5c87fb202a391143f07a4aef7a5ec404b411
