[INFO] fetching crate py-fossil-delta 0.1.3...
[INFO] testing py-fossil-delta-0.1.3 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate py-fossil-delta 0.1.3 into /workspace/builds/worker-3-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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate py-fossil-delta 0.1.3 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 67 packages to highest compatible versions
[INFO] [stderr]       Adding cbindgen v0.5.2 (available: v0.29.4)
[INFO] [stderr]       Adding indoc-impl v0.3.6 (available: v0.3.7)
[INFO] [stderr]       Adding pyo3 v0.8.5 (available: v0.30.1)
[INFO] [stderr]       Adding serde v1.0.102 (available: v1.0.229)
[INFO] [stderr]       Adding serde_derive v1.0.21 (available: v1.0.229)
[INFO] [stderr]       Adding serde_json v1.0.99 (available: v1.0.154)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unindent v0.1.11
[INFO] [stderr]   Downloaded pyo3cls v0.8.5
[INFO] [stderr]   Downloaded inventory-impl v0.1.11
[INFO] [stderr]   Downloaded indoc v0.3.6
[INFO] [stderr]   Downloaded indoc-impl v0.3.6
[INFO] [stderr]   Downloaded fossil-delta v0.2.0
[INFO] [stderr]   Downloaded inventory v0.1.11
[INFO] [stderr]   Downloaded serde v1.0.102
[INFO] [stderr]   Downloaded serde_derive v1.0.21
[INFO] [stderr]   Downloaded standalone-quote v0.5.0
[INFO] [stderr]   Downloaded serde_derive_internals v0.17.0
[INFO] [stderr]   Downloaded ghost v0.1.23
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.8.5
[INFO] [stderr]   Downloaded proc-macro2 v0.2.3
[INFO] [stderr]   Downloaded log v0.3.9
[INFO] [stderr]   Downloaded toml v0.4.10
[INFO] [stderr]   Downloaded pyo3 v0.8.5
[INFO] [stderr]   Downloaded cbindgen v0.5.2
[INFO] [stderr]   Downloaded standalone-syn v0.13.0
[INFO] [stderr]   Downloaded serde_json v1.0.99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 89da7969fb1b71f2039da466d603ac19e101cf361046c9254228a58886931c7f
[INFO] running `Command { std: "docker" "start" "89da7969fb1b71f2039da466d603ac19e101cf361046c9254228a58886931c7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89da7969fb1b71f2039da466d603ac19e101cf361046c9254228a58886931c7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "89da7969fb1b71f2039da466d603ac19e101cf361046c9254228a58886931c7f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89da7969fb1b71f2039da466d603ac19e101cf361046c9254228a58886931c7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "89da7969fb1b71f2039da466d603ac19e101cf361046c9254228a58886931c7f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", 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 regex-syntax v0.8.11
[INFO] [stderr]    Compiling serde_json v1.0.99
[INFO] [stderr]    Compiling ryu v1.0.23
[INFO] [stderr]    Compiling syn v3.0.9
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]    Compiling aho-corasick v1.1.5
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling pyo3-derive-backend v0.8.5
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling fossil-delta v0.2.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling indoc v0.3.6
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]    Compiling pyo3cls v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.21
[INFO] [stderr]    Compiling ghost v0.1.23
[INFO] [stderr]    Compiling regex-automata v0.4.18
[INFO] [stderr]    Compiling regex v1.13.1
[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_RELEASE_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/release/build/pyo3-c021f3fb5eb1a21e/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (598) 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:     0x55c6edfab4d1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x55c6edfbfa7a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stderr]      2:     0x55c6edfaf71c - <std[70759c8f55707aa4]::sys::stdio::unix::Stderr as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x55c6edf8b1a6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x55c6edfa4701 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stderr]      5:     0x55c6edfa48bb - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x55c6edf8a80c - std[70759c8f55707aa4]::panicking::begin_panic::<&str>::{closure#0}
[INFO] [stderr]      7:     0x55c6edf83fe9 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::begin_panic<&str>::{closure#0}, !>
[INFO] [stderr]      8:     0x55c6edf8143b - std[70759c8f55707aa4]::panicking::begin_panic::<&str>
[INFO] [stderr]      9:     0x55c6edd85784 - build_script_build[4a5fc79f33de4e89]::check_rustc_version
[INFO] [stderr]     10:     0x55c6edd87554 - build_script_build[4a5fc79f33de4e89]::main
[INFO] [stderr]     11:     0x55c6edd74c3e - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     12:     0x55c6edd767a1 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stderr]     13:     0x55c6edd7094f - std[70759c8f55707aa4]::rt::lang_start::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>::{closure#0}
[INFO] [stderr]     14:     0x55c6edfa3ac9 - std[70759c8f55707aa4]::rt::lang_start_internal
[INFO] [stderr]     15:     0x55c6edd6e641 - std[70759c8f55707aa4]::rt::lang_start::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stderr]     16:     0x55c6edd891d5 - main
[INFO] [stderr]     17:     0x772e34c26601 - <unknown>
[INFO] [stderr]     18:     0x772e34c26718 - __libc_start_main
[INFO] [stderr]     19:     0x55c6edd6d875 - _start
[INFO] [stderr]     20:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "89da7969fb1b71f2039da466d603ac19e101cf361046c9254228a58886931c7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89da7969fb1b71f2039da466d603ac19e101cf361046c9254228a58886931c7f", kill_on_drop: false }`
[INFO] [stdout] 89da7969fb1b71f2039da466d603ac19e101cf361046c9254228a58886931c7f
