[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#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Failisp%2Ftest-flatdata" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ailisp/test-flatdata on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded flatdata v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71a33da6a01d67e95dc3e84dfb956cde4ba4e34c76a4eb7b8caa60f3a5e64e81
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "71a33da6a01d67e95dc3e84dfb956cde4ba4e34c76a4eb7b8caa60f3a5e64e81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71a33da6a01d67e95dc3e84dfb956cde4ba4e34c76a4eb7b8caa60f3a5e64e81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71a33da6a01d67e95dc3e84dfb956cde4ba4e34c76a4eb7b8caa60f3a5e64e81", kill_on_drop: false }`
[INFO] [stdout] 71a33da6a01d67e95dc3e84dfb956cde4ba4e34c76a4eb7b8caa60f3a5e64e81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50710d4ef16bb4d8726f976ff3850fbffce90b8fd8cefc43570761f1a5f90fc9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "50710d4ef16bb4d8726f976ff3850fbffce90b8fd8cefc43570761f1a5f90fc9", kill_on_drop: false }`
[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-cf445140d267b0e7/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-3e7c18327fab8310/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:     0x55b8701a7930 - std::backtrace_rs::backtrace::libunwind::trace::h99dbb39dca18857d
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55b8701a7930 - std::backtrace_rs::backtrace::trace_unsynchronized::h832861927e9cfedf
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55b8701a7930 - std::sys_common::backtrace::_print_fmt::h3d18154c77dcf310
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55b8701a7930 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he312f4ad5b9bb346
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55b8701c560c - core::fmt::write::h9a6d9c74526a6c1b
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]      5:     0x55b8701a5335 - std::io::Write::write_fmt::h6aced00850e8186f
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/io/mod.rs:1665:15
[INFO] [stderr]      6:     0x55b8701a95fb - std::sys_common::backtrace::_print::h65d996766de40da4
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55b8701a95fb - std::sys_common::backtrace::print::h40df9727e635f303
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55b8701a95fb - std::panicking::default_hook::{{closure}}::hd2da4327dea91a51
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55b8701a90d1 - std::panicking::default_hook::h3d55120ad6ada158
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55b8701a9cc4 - std::panicking::rust_panic_with_hook::hf85dd0bb545e3b55
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x55b8701a97a7 - std::panicking::begin_panic_handler::{{closure}}::h736ae969434da9fa
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x55b8701a7e0c - std::sys_common::backtrace::__rust_end_short_backtrace::h6133bb80b1d6c3e0
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55b8701a9709 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x55b87016f281 - core::panicking::panic_fmt::hcf5f6d96e1dd7099
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x55b87016f313 - core::result::unwrap_failed::he898b02f57993c42
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/result.rs:1599:5
[INFO] [stderr]     16:     0x55b870175209 - core::result::Result<T,E>::expect::ha116dbd102f48f12
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/result.rs:1241:23
[INFO] [stderr]     17:     0x55b8701773bd - build_script_build::main::h9b0f59e8d0278bbf
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:2:5
[INFO] [stderr]     18:     0x55b87017590b - core::ops::function::FnOnce::call_once::hc62a0bf372a5391e
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x55b870176ebe - std::sys_common::backtrace::__rust_begin_short_backtrace::h2e2661eaf75a85f7
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x55b870176f51 - std::rt::lang_start::{{closure}}::h034621bbe2d45e0c
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/rt.rs:63:18
[INFO] [stderr]     21:     0x55b8701aa1ca - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h5a0483c8d4e9c15d
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x55b8701aa1ca - std::panicking::try::do_call::h6ad7918f175f6ddd
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:401:40
[INFO] [stderr]     23:     0x55b8701aa1ca - std::panicking::try::hcd5af58f52320690
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:365:19
[INFO] [stderr]     24:     0x55b8701aa1ca - std::panic::catch_unwind::hf1ae33ba67228f1e
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panic.rs:434:14
[INFO] [stderr]     25:     0x55b8701aa1ca - std::rt::lang_start_internal::{{closure}}::h4a87bc0aa1312dc5
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/rt.rs:45:48
[INFO] [stderr]     26:     0x55b8701aa1ca - std::panicking::try::do_call::h1ade2a52932fc900
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:401:40
[INFO] [stderr]     27:     0x55b8701aa1ca - std::panicking::try::h6f4a87ad169e174b
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:365:19
[INFO] [stderr]     28:     0x55b8701aa1ca - std::panic::catch_unwind::h043c7f08019f9e2a
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panic.rs:434:14
[INFO] [stderr]     29:     0x55b8701aa1ca - std::rt::lang_start_internal::h82825699ebfd70bd
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/rt.rs:45:20
[INFO] [stderr]     30:     0x55b870176f20 - std::rt::lang_start::h36f822c8037780e3
[INFO] [stderr]                                  at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/rt.rs:62:5
[INFO] [stderr]     31:     0x55b87017742c - main
[INFO] [stderr]     32:     0x7ff39421e0b3 - __libc_start_main
[INFO] [stderr]     33:     0x55b87016f9de - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "50710d4ef16bb4d8726f976ff3850fbffce90b8fd8cefc43570761f1a5f90fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50710d4ef16bb4d8726f976ff3850fbffce90b8fd8cefc43570761f1a5f90fc9", kill_on_drop: false }`
[INFO] [stdout] 50710d4ef16bb4d8726f976ff3850fbffce90b8fd8cefc43570761f1a5f90fc9