[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 try#0c70cfbec949d241375e31c5a42066be70c720fc for pr-149681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBengreen%2Frusty-snakeskin" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/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-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Bengreen/rusty-snakeskin on toolchain 0c70cfbec949d241375e31c5a42066be70c720fc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "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" "+0c70cfbec949d241375e31c5a42066be70c720fc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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: v0.27.2)
[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" "+0c70cfbec949d241375e31c5a42066be70c720fc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a858ad5fa88d6f70e3cdac21e516b8d24819310ff89f7b43b82754a91646aa86
[INFO] running `Command { std: "docker" "start" "-a" "a858ad5fa88d6f70e3cdac21e516b8d24819310ff89f7b43b82754a91646aa86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a858ad5fa88d6f70e3cdac21e516b8d24819310ff89f7b43b82754a91646aa86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a858ad5fa88d6f70e3cdac21e516b8d24819310ff89f7b43b82754a91646aa86", kill_on_drop: false }`
[INFO] [stdout] a858ad5fa88d6f70e3cdac21e516b8d24819310ff89f7b43b82754a91646aa86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e76fe48a93712b3de06d0429c8b00eb92fa4db8fef1a85945751863ce684fc1
[INFO] running `Command { std: "docker" "start" "-a" "1e76fe48a93712b3de06d0429c8b00eb92fa4db8fef1a85945751863ce684fc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling pyo3-build-config v0.15.2
[INFO] [stderr]    Compiling pyo3-build-config v0.14.5
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking humantime v2.3.0
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]    Compiling rusty-snakeskin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking parking_lot_core v0.8.6
[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' (136) 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:     0x5a13ce7850f2 - std[eec8f75a7a098899]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5a13ce7850f2 - std[eec8f75a7a098899]::backtrace_rs::backtrace::trace_unsynchronized::<std[eec8f75a7a098899]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5a13ce7850f2 - std[eec8f75a7a098899]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/sys/backtrace.rs:68:9
[INFO] [stderr]      3:     0x5a13ce7850f2 - <<std[eec8f75a7a098899]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[c7210762872bdbbf]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/sys/backtrace.rs:38:26
[INFO] [stderr]      4:     0x5a13ce796a17 - <core[c7210762872bdbbf]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5a13ce796a17 - core[c7210762872bdbbf]::fmt::write
[INFO] [stderr]      6:     0x5a13ce789956 - std[eec8f75a7a098899]::io::default_write_fmt::<std[eec8f75a7a098899]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/io/mod.rs:614:11
[INFO] [stderr]      7:     0x5a13ce789956 - <std[eec8f75a7a098899]::sys::stdio::unix::Stderr as std[eec8f75a7a098899]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/io/mod.rs:1969:13
[INFO] [stderr]      8:     0x5a13ce76a4af - <std[eec8f75a7a098899]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/sys/backtrace.rs:41:9
[INFO] [stderr]      9:     0x5a13ce76a4af - std[eec8f75a7a098899]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x5a13ce780d41 - std[eec8f75a7a098899]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x5a13ce780efb - std[eec8f75a7a098899]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x5a13ce76a568 - std[eec8f75a7a098899]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x5a13ce762099 - std[eec8f75a7a098899]::sys::backtrace::__rust_end_short_backtrace::<std[eec8f75a7a098899]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/sys/backtrace.rs:176:18
[INFO] [stderr]     14:     0x5a13ce76aecd - __rustc[da847b0bb261331d]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x5a13ce79705c - core[c7210762872bdbbf]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5a13ce796e32 - core[c7210762872bdbbf]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x5a13ce751062 - <core[c7210762872bdbbf]::result::Result<std[eec8f75a7a098899]::process::Output, std[eec8f75a7a098899]::io::error::Error>>::expect
[INFO] [stderr]     18:     0x5a13ce750bb6 - build_script_build[c6379fb232575cbd]::main
[INFO] [stderr]     19:     0x5a13ce753063 - <fn() as core[c7210762872bdbbf]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     20:     0x5a13ce750666 - std[eec8f75a7a098899]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     21:     0x5a13ce750a79 - std[eec8f75a7a098899]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     22:     0x5a13ce77ff66 - <&dyn core[c7210762872bdbbf]::ops::function::Fn<(), Output = i32> + core[c7210762872bdbbf]::marker::Sync + core[c7210762872bdbbf]::panic::unwind_safe::RefUnwindSafe as core[c7210762872bdbbf]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x5a13ce77ff66 - std[eec8f75a7a098899]::panicking::catch_unwind::do_call::<&dyn core[c7210762872bdbbf]::ops::function::Fn<(), Output = i32> + core[c7210762872bdbbf]::marker::Sync + core[c7210762872bdbbf]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/panicking.rs:581:40
[INFO] [stderr]     24:     0x5a13ce77ff66 - std[eec8f75a7a098899]::panicking::catch_unwind::<i32, &dyn core[c7210762872bdbbf]::ops::function::Fn<(), Output = i32> + core[c7210762872bdbbf]::marker::Sync + core[c7210762872bdbbf]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/panicking.rs:544:19
[INFO] [stderr]     25:     0x5a13ce77ff66 - std[eec8f75a7a098899]::panic::catch_unwind::<&dyn core[c7210762872bdbbf]::ops::function::Fn<(), Output = i32> + core[c7210762872bdbbf]::marker::Sync + core[c7210762872bdbbf]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x5a13ce77ff66 - std[eec8f75a7a098899]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x5a13ce77ff66 - std[eec8f75a7a098899]::panicking::catch_unwind::do_call::<std[eec8f75a7a098899]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/panicking.rs:581:40
[INFO] [stderr]     28:     0x5a13ce77ff66 - std[eec8f75a7a098899]::panicking::catch_unwind::<isize, std[eec8f75a7a098899]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/panicking.rs:544:19
[INFO] [stderr]     29:     0x5a13ce77ff66 - std[eec8f75a7a098899]::panic::catch_unwind::<std[eec8f75a7a098899]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x5a13ce77ff66 - std[eec8f75a7a098899]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/0c70cfbec949d241375e31c5a42066be70c720fc/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x5a13ce750651 - std[eec8f75a7a098899]::rt::lang_start::<()>
[INFO] [stderr]     32:     0x5a13ce753395 - main
[INFO] [stderr]     33:     0x7f0dd69821ca - <unknown>
[INFO] [stderr]     34:     0x7f0dd698228b - __libc_start_main
[INFO] [stderr]     35:     0x5a13ce74f605 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1e76fe48a93712b3de06d0429c8b00eb92fa4db8fef1a85945751863ce684fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e76fe48a93712b3de06d0429c8b00eb92fa4db8fef1a85945751863ce684fc1", kill_on_drop: false }`
[INFO] [stdout] 1e76fe48a93712b3de06d0429c8b00eb92fa4db8fef1a85945751863ce684fc1
