[INFO] cloning repository https://github.com/Bengreen/rusty-snakeskin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bengreen/rusty-snakeskin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBengreen%2Frusty-snakeskin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBengreen%2Frusty-snakeskin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ad2dde47405748a21d933284cb867bce516805f
[INFO] checking Bengreen/rusty-snakeskin against master#c8a31b780d5415358566a20b94912620a3f27067 for pr-139493-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBengreen%2Frusty-snakeskin" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Bengreen/rusty-snakeskin
[INFO] finished tweaking git repo https://github.com/Bengreen/rusty-snakeskin
[INFO] tweaked toml for git repo https://github.com/Bengreen/rusty-snakeskin written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Bengreen/rusty-snakeskin on toolchain c8a31b780d5415358566a20b94912620a3f27067
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8a31b780d5415358566a20b94912620a3f27067" "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" "+c8a31b780d5415358566a20b94912620a3f27067" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 87 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.9.3 (available: v0.11.8)
[INFO] [stderr]       Adding indoc-impl v0.3.6 (available: v0.3.7)
[INFO] [stderr]       Adding pyo3 v0.14.5 (available: v0.27.0)
[INFO] [stderr]       Adding pyo3-asyncio v0.14.1 (available: v0.20.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8a31b780d5415358566a20b94912620a3f27067" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indoc v0.3.6
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.14.5
[INFO] [stderr]   Downloaded inventory-impl v0.1.11
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.15.2
[INFO] [stderr]   Downloaded pyo3-asyncio v0.14.1
[INFO] [stderr]   Downloaded pyo3-build-config v0.14.5
[INFO] [stderr]   Downloaded pyo3 v0.14.5
[INFO] [stderr]   Downloaded ghost v0.1.20
[INFO] [stderr]   Downloaded inventory v0.1.11
[INFO] [stderr]   Downloaded pyo3-build-config v0.15.2
[INFO] [stderr]   Downloaded pyo3-macros v0.14.5
[INFO] [stderr]   Downloaded pyo3-asyncio-macros v0.14.1
[INFO] [stderr]   Downloaded pyo3-macros v0.15.2
[INFO] [stderr]   Downloaded indoc-impl v0.3.6
[INFO] [stderr]   Downloaded pyo3 v0.15.2
[INFO] [stderr]   Downloaded ctor v0.1.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c8a31b780d5415358566a20b94912620a3f27067" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10d0020932681cfb63876de90e4db5720996bff38b6ff9c66ac914847adb5579
[INFO] running `Command { std: "docker" "start" "-a" "10d0020932681cfb63876de90e4db5720996bff38b6ff9c66ac914847adb5579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10d0020932681cfb63876de90e4db5720996bff38b6ff9c66ac914847adb5579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10d0020932681cfb63876de90e4db5720996bff38b6ff9c66ac914847adb5579", kill_on_drop: false }`
[INFO] [stdout] 10d0020932681cfb63876de90e4db5720996bff38b6ff9c66ac914847adb5579
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c8a31b780d5415358566a20b94912620a3f27067" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f91b25e1087142f17023a8580a06dcad4c0cb9fa321991d88c4a250ce274b2e
[INFO] running `Command { std: "docker" "start" "-a" "1f91b25e1087142f17023a8580a06dcad4c0cb9fa321991d88c4a250ce274b2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling pyo3-build-config v0.15.2
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling pyo3-build-config v0.14.5
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling syn v2.0.107
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]    Compiling rusty-snakeskin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr] error: failed to run custom build command for `rusty-snakeskin v0.1.0 (/opt/rustwide/workdir)`
[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/rusty-snakeskin-4cb75c0b21af0e87/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rustc-link-search=native=./clibrary
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (284) panicked at build.rs:13:10:
[INFO] [stderr]   failed to execute python command: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5c115d8df392 - std::backtrace_rs::backtrace::libunwind::trace::hc88eb2f5e300ea51
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5c115d8df392 - std::backtrace_rs::backtrace::trace_unsynchronized::h8b2f1f44c0b1740b
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5c115d8df392 - std::sys::backtrace::_print_fmt::h70d69049475b0e00
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5c115d8df392 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::he6e054ed41f92047
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5c115d8ee2df - core::fmt::rt::Argument::fmt::hb4ca1b8668c363d1
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5c115d8ee2df - core::fmt::write::h8d4684b9afb21279
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x5c115d8b5ce3 - std::io::default_write_fmt::h531a1496d2775e0b
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5c115d8b5ce3 - std::io::Write::write_fmt::hc7fb356c2f5ee8f5
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5c115d8bf1e2 - std::sys::backtrace::BacktraceLock::print::h719c6fbe29d22349
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5c115d8c0e2c - std::panicking::default_hook::{{closure}}::h50e9fa3f69d728af
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x5c115d8c0c86 - std::panicking::default_hook::h8ed58be38517dfa0
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x5c115d8c1405 - std::panicking::panic_with_hook::hca9149941ce8df70
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x5c115d8c129a - std::panicking::panic_handler::{{closure}}::h761f7fb46954a937
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x5c115d8bf319 - std::sys::backtrace::__rust_end_short_backtrace::hae59f267fe5e6560
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5c115d8aa6cd - __rustc[976770a6a7a99d6b]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x5c115d8f17a0 - core::panicking::panic_fmt::h5f968fb8cbc55e68
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5c115d8f1026 - core::result::unwrap_failed::h9ba868ba42e6a97d
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/core/src/result.rs:1855:5
[INFO] [stderr]     17:     0x5c115d8a8442 - core::result::Result<T,E>::expect::h980f051174a24cea
[INFO] [stderr]     18:     0x5c115d8a63b0 - build_script_build::main::hf2a559c3aeef9d51
[INFO] [stderr]     19:     0x5c115d8a73f3 - core::ops::function::FnOnce::call_once::hc69e3b09f9c9b5da
[INFO] [stderr]     20:     0x5c115d8a7126 - std::sys::backtrace::__rust_begin_short_backtrace::h7aed1cf90d79a2cf
[INFO] [stderr]     21:     0x5c115d8a7059 - std::rt::lang_start::{{closure}}::h43e31bcf4859db14
[INFO] [stderr]     22:     0x5c115d8b7470 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hb4808de3c53cc7bd
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x5c115d8b7470 - std::panicking::catch_unwind::do_call::hac7777efbc267cdb
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/panicking.rs:590:40
[INFO] [stderr]     24:     0x5c115d8b7470 - std::panicking::catch_unwind::h89e1fe3ebba2a858
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/panicking.rs:553:19
[INFO] [stderr]     25:     0x5c115d8b7470 - std::panic::catch_unwind::h065b87174d927016
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x5c115d8b7470 - std::rt::lang_start_internal::{{closure}}::h4ce8fa0d9939dd08
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x5c115d8b7470 - std::panicking::catch_unwind::do_call::h12477abcfc6db8a6
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/panicking.rs:590:40
[INFO] [stderr]     28:     0x5c115d8b7470 - std::panicking::catch_unwind::h8553ce35794026dd
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/panicking.rs:553:19
[INFO] [stderr]     29:     0x5c115d8b7470 - std::panic::catch_unwind::hd56e00c00379dac9
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x5c115d8b7470 - std::rt::lang_start_internal::h11095a0e52315381
[INFO] [stderr]                                  at /rustc/c8a31b780d5415358566a20b94912620a3f27067/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x5c115d8a7041 - std::rt::lang_start::h076860bf1d3a6f3c
[INFO] [stderr]     32:     0x5c115d8aa3e5 - main
[INFO] [stderr]     33:     0x7bce0b55b1ca - <unknown>
[INFO] [stderr]     34:     0x7bce0b55b28b - __libc_start_main
[INFO] [stderr]     35:     0x5c115d8a6185 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1f91b25e1087142f17023a8580a06dcad4c0cb9fa321991d88c4a250ce274b2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f91b25e1087142f17023a8580a06dcad4c0cb9fa321991d88c4a250ce274b2e", kill_on_drop: false }`
[INFO] [stdout] 1f91b25e1087142f17023a8580a06dcad4c0cb9fa321991d88c4a250ce274b2e
