[INFO] cloning repository https://github.com/ailisp/test-flatdata
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ailisp/test-flatdata" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Failisp%2Ftest-flatdata", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Failisp%2Ftest-flatdata'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fc6764c520b14b873691e25ccfd83996d64f0cd8
[INFO] testing ailisp/test-flatdata against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Failisp%2Ftest-flatdata" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ailisp/test-flatdata on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ailisp/test-flatdata
[INFO] finished tweaking git repo https://github.com/ailisp/test-flatdata
[INFO] tweaked toml for git repo https://github.com/ailisp/test-flatdata written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/ailisp/test-flatdata already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10358cc48ac7c9ab2a49f31b8790f342c8c75907ccb5c565e4dda64f9f92e8cd
[INFO] running `Command { std: "docker" "start" "-a" "10358cc48ac7c9ab2a49f31b8790f342c8c75907ccb5c565e4dda64f9f92e8cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10358cc48ac7c9ab2a49f31b8790f342c8c75907ccb5c565e4dda64f9f92e8cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10358cc48ac7c9ab2a49f31b8790f342c8c75907ccb5c565e4dda64f9f92e8cd", kill_on_drop: false }`
[INFO] [stdout] 10358cc48ac7c9ab2a49f31b8790f342c8c75907ccb5c565e4dda64f9f92e8cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61425f67b03b3a989e48dad54a635a00f76e8ee45c1e88115e04c76ce8862511
[INFO] running `Command { std: "docker" "start" "-a" "61425f67b03b3a989e48dad54a635a00f76e8ee45c1e88115e04c76ce8862511", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling flatdata v0.5.1
[INFO] [stderr]    Compiling test-flatdata v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `test-flatdata v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/test-flatdata-644a101a27fa7165/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   The virtual environment was not created successfully because ensurepip is not
[INFO] [stderr]   available.  On Debian/Ubuntu systems, you need to install the python3-venv
[INFO] [stderr]   package using the following command.
[INFO] [stderr] 
[INFO] [stderr]       apt install python3.8-venv
[INFO] [stderr] 
[INFO] [stderr]   You may need to use sudo with that command.  After installing the python3-venv
[INFO] [stderr]   package, recreate your virtual environment.
[INFO] [stderr] 
[INFO] [stderr]   Failing command: ['/opt/rustwide/target/debug/build/test-flatdata-8deb1f6565a9eec6/out/bin/python3', '-Im', 'ensurepip', '--upgrade', '--default-pip']
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   creating python virtualenv
[INFO] [stderr]   installing flatdata-generator from PyPI
[INFO] [stderr]   thread 'main' panicked at 'generator failed: PythonError(Os { code: 2, kind: NotFound, message: "No such file or directory" })', build.rs:6:6
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55a1c0d2f1fc - std::backtrace_rs::backtrace::libunwind::trace::h793e05efd273d0f4
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x55a1c0d2f1fc - std::backtrace_rs::backtrace::trace_unsynchronized::h640b7b86ff610c77
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55a1c0d2f1fc - std::sys_common::backtrace::_print_fmt::h362fa2a4f354f877
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55a1c0d2f1fc - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf439e5ed84c74abd
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55a1c0d4d1ec - core::fmt::write::h72801a82c94e6ff1
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/fmt/mod.rs:1149:17
[INFO] [stderr]      5:     0x55a1c0d2c125 - std::io::Write::write_fmt::h5562a8b6da0f0339
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/io/mod.rs:1697:15
[INFO] [stderr]      6:     0x55a1c0d30800 - std::sys_common::backtrace::_print::hb29ddd998d02631c
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55a1c0d30800 - std::sys_common::backtrace::print::h81965e3d7c90fbb6
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55a1c0d30800 - std::panicking::default_hook::{{closure}}::h84db205ab6674b38
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:211:50
[INFO] [stderr]      9:     0x55a1c0d303ab - std::panicking::default_hook::h1bf8bb4159936bca
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:228:9
[INFO] [stderr]     10:     0x55a1c0d30eb4 - std::panicking::rust_panic_with_hook::hf8e86850fbbd03b1
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:606:17
[INFO] [stderr]     11:     0x55a1c0d30990 - std::panicking::begin_panic_handler::{{closure}}::h590a0d6060ff866e
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:502:13
[INFO] [stderr]     12:     0x55a1c0d2f6b4 - std::sys_common::backtrace::__rust_end_short_backtrace::h260b8bd1c848a03c
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:139:18
[INFO] [stderr]     13:     0x55a1c0d308f9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:498:5
[INFO] [stderr]     14:     0x55a1c0cf0161 - core::panicking::panic_fmt::h7b8580d81fcbbacd
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panicking.rs:106:14
[INFO] [stderr]     15:     0x55a1c0cf01f3 - core::result::unwrap_failed::h885d3f7beb571353
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1613:5
[INFO] [stderr]     16:     0x55a1c0cf7a98 - core::result::Result<T,E>::expect::h9fcfaf022949640a
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1255:23
[INFO] [stderr]     17:     0x55a1c0cf3ffd - build_script_build::main::h641b903c70119c4a
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:2:5
[INFO] [stderr]     18:     0x55a1c0cf60cb - core::ops::function::FnOnce::call_once::h3abb82958cf8fbc9
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x55a1c0cf3c8e - std::sys_common::backtrace::__rust_begin_short_backtrace::h19e45030be03400d
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stderr]     20:     0x55a1c0cf81e1 - std::rt::lang_start::{{closure}}::h301da36926bb6d43
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/rt.rs:145:18
[INFO] [stderr]     21:     0x55a1c0d2ea41 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h42d3791e66d196c0
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x55a1c0d2ea41 - std::panicking::try::do_call::hc3bcb188e535517f
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stderr]     23:     0x55a1c0d2ea41 - std::panicking::try::hb1edf04d4a7097ab
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stderr]     24:     0x55a1c0d2ea41 - std::panic::catch_unwind::h75ed941ac0d36d57
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stderr]     25:     0x55a1c0d2ea41 - std::rt::lang_start_internal::{{closure}}::hc702b3389af4cbea
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/rt.rs:128:48
[INFO] [stderr]     26:     0x55a1c0d2ea41 - std::panicking::try::do_call::h53276a03c7fe2ebc
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stderr]     27:     0x55a1c0d2ea41 - std::panicking::try::ha9e37f45dc542517
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stderr]     28:     0x55a1c0d2ea41 - std::panic::catch_unwind::h182647595766fee7
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stderr]     29:     0x55a1c0d2ea41 - std::rt::lang_start_internal::h571831ebdba142de
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/rt.rs:128:20
[INFO] [stderr]     30:     0x55a1c0cf81b0 - std::rt::lang_start::h1161f2f0c33fc128
[INFO] [stderr]                                  at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/rt.rs:144:17
[INFO] [stderr]     31:     0x55a1c0cf406c - main
[INFO] [stderr]     32:     0x7f76a195e0b3 - __libc_start_main
[INFO] [stderr]     33:     0x55a1c0cf087e - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "61425f67b03b3a989e48dad54a635a00f76e8ee45c1e88115e04c76ce8862511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61425f67b03b3a989e48dad54a635a00f76e8ee45c1e88115e04c76ce8862511", kill_on_drop: false }`
[INFO] [stdout] 61425f67b03b3a989e48dad54a635a00f76e8ee45c1e88115e04c76ce8862511