[INFO] fetching crate py-fossil-delta 0.1.3...
[INFO] testing py-fossil-delta-0.1.3 against 1.95.0 for beta-1.96-2
[INFO] extracting crate py-fossil-delta 0.1.3 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate py-fossil-delta 0.1.3
[INFO] finished tweaking crates.io crate py-fossil-delta 0.1.3
[INFO] tweaked toml for crates.io crate py-fossil-delta 0.1.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate py-fossil-delta 0.1.3 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 67 packages to latest compatible versions
[INFO] [stderr]       Adding cbindgen v0.5.2 (available: v0.29.2)
[INFO] [stderr]       Adding indoc-impl v0.3.6 (available: v0.3.7)
[INFO] [stderr]       Adding pyo3 v0.8.5 (available: v0.28.3)
[INFO] [stderr]       Adding serde v1.0.102 (available: v1.0.228)
[INFO] [stderr]       Adding serde_derive v1.0.21 (available: v1.0.228)
[INFO] [stderr]       Adding serde_json v1.0.99 (available: v1.0.149)
[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 quote v0.3.15
[INFO] [stderr]   Downloaded unindent v0.1.11
[INFO] [stderr]   Downloaded unicode-xid v0.0.4
[INFO] [stderr]   Downloaded serde v1.0.102
[INFO] [stderr]   Downloaded pyo3cls v0.8.5
[INFO] [stderr]   Downloaded syn v0.11.11
[INFO] [stderr]   Downloaded standalone-quote v0.5.0
[INFO] [stderr]   Downloaded ctor v0.1.26
[INFO] [stderr]   Downloaded inventory-impl v0.1.11
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded fossil-delta v0.2.0
[INFO] [stderr]   Downloaded synom v0.11.3
[INFO] [stderr]   Downloaded serde_derive v1.0.21
[INFO] [stderr]   Downloaded proc-macro2 v0.2.3
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.8.5
[INFO] [stderr]   Downloaded inventory v0.1.11
[INFO] [stderr]   Downloaded serde_derive_internals v0.17.0
[INFO] [stderr]   Downloaded ghost v0.1.20
[INFO] [stderr]   Downloaded toml v0.4.10
[INFO] [stderr]   Downloaded indoc-impl v0.3.6
[INFO] [stderr]   Downloaded cbindgen v0.5.2
[INFO] [stderr]   Downloaded indoc v0.3.6
[INFO] [stderr]   Downloaded standalone-syn v0.13.0
[INFO] [stderr]   Downloaded serde_json v1.0.99
[INFO] [stderr]   Downloaded pyo3 v0.8.5
[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] f144573f51796398163382ac6392aa7d68c1e3839f48c34afc3e62a875c43bb5
[INFO] running `Command { std: "docker" "start" "-a" "f144573f51796398163382ac6392aa7d68c1e3839f48c34afc3e62a875c43bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f144573f51796398163382ac6392aa7d68c1e3839f48c34afc3e62a875c43bb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f144573f51796398163382ac6392aa7d68c1e3839f48c34afc3e62a875c43bb5", kill_on_drop: false }`
[INFO] [stdout] f144573f51796398163382ac6392aa7d68c1e3839f48c34afc3e62a875c43bb5
[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] cce76b757fc78730dc76a0d2ae992cb4d9b000e161a96cc6d2b2c9e93bd0cf0e
[INFO] running `Command { std: "docker" "start" "-a" "cce76b757fc78730dc76a0d2ae992cb4d9b000e161a96cc6d2b2c9e93bd0cf0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling serde_json v1.0.99
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling ryu v1.0.23
[INFO] [stderr]    Compiling itoa v1.0.18
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling ghost v0.1.20
[INFO] [stderr]    Compiling fossil-delta v0.2.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]    Compiling serde_derive v1.0.21
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling pyo3-derive-backend v0.8.5
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling indoc v0.3.6
[INFO] [stderr]    Compiling pyo3cls v0.8.5
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling pyo3 v0.8.5
[INFO] [stderr] error: failed to run custom build command for `pyo3 v0.8.5`
[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-d3052a0f6c0cf964/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (617) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/pyo3-0.8.5/build.rs:542:9:
[INFO] [stderr]   Error: pyo3 requires a nightly or dev version of Rust.
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5f0a2adc6e9a - std[e28293b1aa0f68bd]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5f0a2adc6e9a - std[e28293b1aa0f68bd]::backtrace_rs::backtrace::trace_unsynchronized::<std[e28293b1aa0f68bd]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5f0a2adc6e9a - std[e28293b1aa0f68bd]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x5f0a2adc6e9a - <<std[e28293b1aa0f68bd]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[c1f1a4ba060b9bfa]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x5f0a2addb00a - <core[c1f1a4ba060b9bfa]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5f0a2addb00a - core[c1f1a4ba060b9bfa]::fmt::write
[INFO] [stderr]      6:     0x5f0a2adcb512 - std[e28293b1aa0f68bd]::io::default_write_fmt::<std[e28293b1aa0f68bd]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5f0a2adcb512 - <std[e28293b1aa0f68bd]::sys::stdio::unix::Stderr as std[e28293b1aa0f68bd]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x5f0a2adabc4f - <std[e28293b1aa0f68bd]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x5f0a2adabc4f - std[e28293b1aa0f68bd]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x5f0a2adc2351 - std[e28293b1aa0f68bd]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x5f0a2adc250b - std[e28293b1aa0f68bd]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x5f0a2adab26c - std[e28293b1aa0f68bd]::panicking::begin_panic::<&str>::{closure#0}
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:762:9
[INFO] [stderr]     13:     0x5f0a2ada36b9 - std[e28293b1aa0f68bd]::sys::backtrace::__rust_end_short_backtrace::<std[e28293b1aa0f68bd]::panicking::begin_panic<&str>::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x5f0a2ada0f20 - std[e28293b1aa0f68bd]::panicking::begin_panic::<&str>
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:761:5
[INFO] [stderr]     15:     0x5f0a2ab563a4 - build_script_build::check_rustc_version::hacf29c6d7f3365ae
[INFO] [stderr]     16:     0x5f0a2ab58dd4 - build_script_build::main::h4c600019069d6bf3
[INFO] [stderr]     17:     0x5f0a2ab4734e - core::ops::function::FnOnce::call_once::h0f9f50cede0427fc
[INFO] [stderr]     18:     0x5f0a2ab46ebd - std::sys::backtrace::__rust_begin_short_backtrace::h122fca003b3c89c6
[INFO] [stderr]     19:     0x5f0a2ab46e9f - std::rt::lang_start::{{closure}}::h786c4a552345d81a
[INFO] [stderr]     20:     0x5f0a2adc1444 - <&dyn core[c1f1a4ba060b9bfa]::ops::function::Fn<(), Output = i32> + core[c1f1a4ba060b9bfa]::marker::Sync + core[c1f1a4ba060b9bfa]::panic::unwind_safe::RefUnwindSafe as core[c1f1a4ba060b9bfa]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     21:     0x5f0a2adc1444 - std[e28293b1aa0f68bd]::panicking::catch_unwind::do_call::<&dyn core[c1f1a4ba060b9bfa]::ops::function::Fn<(), Output = i32> + core[c1f1a4ba060b9bfa]::marker::Sync + core[c1f1a4ba060b9bfa]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:581:40
[INFO] [stderr]     22:     0x5f0a2adc1444 - std[e28293b1aa0f68bd]::panicking::catch_unwind::<i32, &dyn core[c1f1a4ba060b9bfa]::ops::function::Fn<(), Output = i32> + core[c1f1a4ba060b9bfa]::marker::Sync + core[c1f1a4ba060b9bfa]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:544:19
[INFO] [stderr]     23:     0x5f0a2adc1444 - std[e28293b1aa0f68bd]::panic::catch_unwind::<&dyn core[c1f1a4ba060b9bfa]::ops::function::Fn<(), Output = i32> + core[c1f1a4ba060b9bfa]::marker::Sync + core[c1f1a4ba060b9bfa]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panic.rs:359:14
[INFO] [stderr]     24:     0x5f0a2adc1444 - std[e28293b1aa0f68bd]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/rt.rs:175:24
[INFO] [stderr]     25:     0x5f0a2adc1444 - std[e28293b1aa0f68bd]::panicking::catch_unwind::do_call::<std[e28293b1aa0f68bd]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:581:40
[INFO] [stderr]     26:     0x5f0a2adc1444 - std[e28293b1aa0f68bd]::panicking::catch_unwind::<isize, std[e28293b1aa0f68bd]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panicking.rs:544:19
[INFO] [stderr]     27:     0x5f0a2adc1444 - std[e28293b1aa0f68bd]::panic::catch_unwind::<std[e28293b1aa0f68bd]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/panic.rs:359:14
[INFO] [stderr]     28:     0x5f0a2adc1444 - std[e28293b1aa0f68bd]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/59807616e1fa2540724bfbac14d7976d7e4a3860/library/std/src/rt.rs:171:5
[INFO] [stderr]     29:     0x5f0a2ab46e81 - std::rt::lang_start::hf9e39b35712d1ffa
[INFO] [stderr]     30:     0x5f0a2ab5e145 - main
[INFO] [stderr]     31:     0x7599722c41ca - <unknown>
[INFO] [stderr]     32:     0x7599722c428b - __libc_start_main
[INFO] [stderr]     33:     0x5f0a2ab3fb55 - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "cce76b757fc78730dc76a0d2ae992cb4d9b000e161a96cc6d2b2c9e93bd0cf0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cce76b757fc78730dc76a0d2ae992cb4d9b000e161a96cc6d2b2c9e93bd0cf0e", kill_on_drop: false }`
[INFO] [stdout] cce76b757fc78730dc76a0d2ae992cb4d9b000e161a96cc6d2b2c9e93bd0cf0e
