[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#1baf923b9c3a455162afe43e18647f494c1a4b73 for pr-151510
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBengreen%2Frusty-snakeskin" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-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-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Bengreen/rusty-snakeskin on toolchain 1baf923b9c3a455162afe43e18647f494c1a4b73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "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" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 88 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" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 342320fc09d135c469dcf02eca375a016de92c4d612d6f7a155bcb0f7c812074
[INFO] running `Command { std: "docker" "start" "-a" "342320fc09d135c469dcf02eca375a016de92c4d612d6f7a155bcb0f7c812074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "342320fc09d135c469dcf02eca375a016de92c4d612d6f7a155bcb0f7c812074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "342320fc09d135c469dcf02eca375a016de92c4d612d6f7a155bcb0f7c812074", kill_on_drop: false }`
[INFO] [stdout] 342320fc09d135c469dcf02eca375a016de92c4d612d6f7a155bcb0f7c812074
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d4b1bc7f8aaae8a462e154304f70042f49fc7a0f84b9d9d20e279813a642f33
[INFO] running `Command { std: "docker" "start" "-a" "4d4b1bc7f8aaae8a462e154304f70042f49fc7a0f84b9d9d20e279813a642f33", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling pyo3-build-config v0.15.2
[INFO] [stderr]    Compiling pyo3-build-config v0.14.5
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking slab v0.4.12
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]     Checking socket2 v0.6.2
[INFO] [stderr]     Checking mio v1.1.1
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.8
[INFO] [stderr]     Checking bytes v1.11.0
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking humantime v2.3.0
[INFO] [stderr]    Compiling rusty-snakeskin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking paste v0.1.18
[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' (434) 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:     0x605ea3e88bf2 - std[be5369b555b52af3]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x605ea3e88bf2 - std[be5369b555b52af3]::backtrace_rs::backtrace::trace_unsynchronized::<std[be5369b555b52af3]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x605ea3e88bf2 - std[be5369b555b52af3]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x605ea3e88bf2 - <<std[be5369b555b52af3]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[3d2fe7bf6445d6f1]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x605ea3e9a56a - <core[3d2fe7bf6445d6f1]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x605ea3e9a56a - core[3d2fe7bf6445d6f1]::fmt::write
[INFO] [stderr]      6:     0x605ea3e8d356 - std[be5369b555b52af3]::io::default_write_fmt::<std[be5369b555b52af3]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x605ea3e8d356 - <std[be5369b555b52af3]::sys::stdio::unix::Stderr as std[be5369b555b52af3]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x605ea3e6dcff - <std[be5369b555b52af3]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x605ea3e6dcff - std[be5369b555b52af3]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x605ea3e84811 - std[be5369b555b52af3]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x605ea3e849cb - std[be5369b555b52af3]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x605ea3e6ddb8 - std[be5369b555b52af3]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x605ea3e65979 - std[be5369b555b52af3]::sys::backtrace::__rust_end_short_backtrace::<std[be5369b555b52af3]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x605ea3e6e65d - __rustc[364230e5ce342739]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x605ea3e9abdc - core[3d2fe7bf6445d6f1]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x605ea3e9a9b2 - core[3d2fe7bf6445d6f1]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x605ea3e545d2 - <core[3d2fe7bf6445d6f1]::result::Result<std[be5369b555b52af3]::process::Output, std[be5369b555b52af3]::io::error::Error>>::expect
[INFO] [stderr]     18:     0x605ea3e542f6 - build_script_build[2652f77eac30bca7]::main
[INFO] [stderr]     19:     0x605ea3e56933 - <fn() as core[3d2fe7bf6445d6f1]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     20:     0x605ea3e53da6 - std[be5369b555b52af3]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     21:     0x605ea3e541b9 - std[be5369b555b52af3]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     22:     0x605ea3e83a66 - <&dyn core[3d2fe7bf6445d6f1]::ops::function::Fn<(), Output = i32> + core[3d2fe7bf6445d6f1]::marker::Sync + core[3d2fe7bf6445d6f1]::panic::unwind_safe::RefUnwindSafe as core[3d2fe7bf6445d6f1]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x605ea3e83a66 - std[be5369b555b52af3]::panicking::catch_unwind::do_call::<&dyn core[3d2fe7bf6445d6f1]::ops::function::Fn<(), Output = i32> + core[3d2fe7bf6445d6f1]::marker::Sync + core[3d2fe7bf6445d6f1]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/panicking.rs:581:40
[INFO] [stderr]     24:     0x605ea3e83a66 - std[be5369b555b52af3]::panicking::catch_unwind::<i32, &dyn core[3d2fe7bf6445d6f1]::ops::function::Fn<(), Output = i32> + core[3d2fe7bf6445d6f1]::marker::Sync + core[3d2fe7bf6445d6f1]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/panicking.rs:544:19
[INFO] [stderr]     25:     0x605ea3e83a66 - std[be5369b555b52af3]::panic::catch_unwind::<&dyn core[3d2fe7bf6445d6f1]::ops::function::Fn<(), Output = i32> + core[3d2fe7bf6445d6f1]::marker::Sync + core[3d2fe7bf6445d6f1]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x605ea3e83a66 - std[be5369b555b52af3]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x605ea3e83a66 - std[be5369b555b52af3]::panicking::catch_unwind::do_call::<std[be5369b555b52af3]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/panicking.rs:581:40
[INFO] [stderr]     28:     0x605ea3e83a66 - std[be5369b555b52af3]::panicking::catch_unwind::<isize, std[be5369b555b52af3]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/panicking.rs:544:19
[INFO] [stderr]     29:     0x605ea3e83a66 - std[be5369b555b52af3]::panic::catch_unwind::<std[be5369b555b52af3]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x605ea3e83a66 - std[be5369b555b52af3]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/1baf923b9c3a455162afe43e18647f494c1a4b73/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x605ea3e53d91 - std[be5369b555b52af3]::rt::lang_start::<()>
[INFO] [stderr]     32:     0x605ea3e56c65 - main
[INFO] [stderr]     33:     0x7696ec8a11ca - <unknown>
[INFO] [stderr]     34:     0x7696ec8a128b - __libc_start_main
[INFO] [stderr]     35:     0x605ea3e52d45 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4d4b1bc7f8aaae8a462e154304f70042f49fc7a0f84b9d9d20e279813a642f33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d4b1bc7f8aaae8a462e154304f70042f49fc7a0f84b9d9d20e279813a642f33", kill_on_drop: false }`
[INFO] [stdout] 4d4b1bc7f8aaae8a462e154304f70042f49fc7a0f84b9d9d20e279813a642f33
