[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#f27166d4c64dc29edc5ea3214357f191edf8b635 for pr-148329
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBengreen%2Frusty-snakeskin" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-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-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Bengreen/rusty-snakeskin on toolchain f27166d4c64dc29edc5ea3214357f191edf8b635
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "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" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "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: v0.27.1)
[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" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c4ae9f00c1aa24c56a6da8e4f1fa2188bb8954b20719ec94499ea6557e9df8e
[INFO] running `Command { std: "docker" "start" "-a" "4c4ae9f00c1aa24c56a6da8e4f1fa2188bb8954b20719ec94499ea6557e9df8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c4ae9f00c1aa24c56a6da8e4f1fa2188bb8954b20719ec94499ea6557e9df8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c4ae9f00c1aa24c56a6da8e4f1fa2188bb8954b20719ec94499ea6557e9df8e", kill_on_drop: false }`
[INFO] [stdout] 4c4ae9f00c1aa24c56a6da8e4f1fa2188bb8954b20719ec94499ea6557e9df8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+f27166d4c64dc29edc5ea3214357f191edf8b635" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36ae93b1e350a847a140df7c2e99952c896132e707b628dcc7b2028d192980c7
[INFO] running `Command { std: "docker" "start" "-a" "36ae93b1e350a847a140df7c2e99952c896132e707b628dcc7b2028d192980c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling pyo3-build-config v0.15.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]    Compiling pyo3-build-config v0.14.5
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]     Checking slab v0.4.11
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]     Checking mio v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]     Checking socket2 v0.6.1
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]    Compiling ghost v0.1.20
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]    Compiling rusty-snakeskin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking humantime v2.3.0
[INFO] [stderr]     Checking parking_lot v0.12.5
[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' (306) 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:     0x6293cedcb412 - std::backtrace_rs::backtrace::libunwind::trace::h1447ebb0f5d97423
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x6293cedcb412 - std::backtrace_rs::backtrace::trace_unsynchronized::hd8ef8450cacdcb00
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x6293cedcb412 - std::sys::backtrace::_print_fmt::h76eb6aced73cb1a6
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x6293cedcb412 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hf32b9a4d7980e15a
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x6293cedda39f - core::fmt::rt::Argument::fmt::h33c8984017ba1f8c
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x6293cedda39f - core::fmt::write::h8a217dde4af02f7f
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x6293ceda1ed3 - std::io::default_write_fmt::h7dacff71da12430f
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x6293ceda1ed3 - std::io::Write::write_fmt::he9093adb4c5a08ae
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x6293cedab2c2 - std::sys::backtrace::BacktraceLock::print::hb24323430264831a
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x6293cedacf0c - std::panicking::default_hook::{{closure}}::h5964864ba4b80ee8
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x6293cedacd66 - std::panicking::default_hook::hd270293f3c8732bd
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x6293cedad4e5 - std::panicking::panic_with_hook::hef5599d5dbb80493
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x6293cedad37a - std::panicking::panic_handler::{{closure}}::h2bca71bb385a23e1
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x6293cedab3f9 - std::sys::backtrace::__rust_end_short_backtrace::h28d2ec1d48b41db7
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x6293ced9678d - __rustc[78154d2c4a188ef5]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x6293ceddd860 - core::panicking::panic_fmt::ha99ab4e5275b5df2
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x6293ceddd0e6 - core::result::unwrap_failed::h3c21b9c73096ba6f
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/core/src/result.rs:1862:5
[INFO] [stderr]     17:     0x6293ced94502 - core::result::Result<T,E>::expect::hcbe2c62f846eda84
[INFO] [stderr]     18:     0x6293ced92470 - build_script_build::main::h5d989f74a389ce6a
[INFO] [stderr]     19:     0x6293ced934f3 - core::ops::function::FnOnce::call_once::hfd61101c005b0f10
[INFO] [stderr]     20:     0x6293ced931e6 - std::sys::backtrace::__rust_begin_short_backtrace::h5a1ff45a4b28207b
[INFO] [stderr]     21:     0x6293ced93119 - std::rt::lang_start::{{closure}}::hda9e8a0e63a8244b
[INFO] [stderr]     22:     0x6293ceda3510 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h9c35f14e6882b8d3
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x6293ceda3510 - std::panicking::catch_unwind::do_call::h924defc6f5f6a4b2
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:590:40
[INFO] [stderr]     24:     0x6293ceda3510 - std::panicking::catch_unwind::h9243fb64bbc98b5f
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:553:19
[INFO] [stderr]     25:     0x6293ceda3510 - std::panic::catch_unwind::hb4c2656a96eb9a02
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x6293ceda3510 - std::rt::lang_start_internal::{{closure}}::h6935cf67d242f3ab
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x6293ceda3510 - std::panicking::catch_unwind::do_call::h8408aa62219a7189
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:590:40
[INFO] [stderr]     28:     0x6293ceda3510 - std::panicking::catch_unwind::h12ce845e8bca9588
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panicking.rs:553:19
[INFO] [stderr]     29:     0x6293ceda3510 - std::panic::catch_unwind::hcc9c44d1fc83fcf0
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x6293ceda3510 - std::rt::lang_start_internal::hafc6ca5f994fb87e
[INFO] [stderr]                                  at /rustc/f27166d4c64dc29edc5ea3214357f191edf8b635/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x6293ced93101 - std::rt::lang_start::h528b8b51396be8f5
[INFO] [stderr]     32:     0x6293ced964a5 - main
[INFO] [stderr]     33:     0x78eb9036d1ca - <unknown>
[INFO] [stderr]     34:     0x78eb9036d28b - __libc_start_main
[INFO] [stderr]     35:     0x6293ced92245 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "36ae93b1e350a847a140df7c2e99952c896132e707b628dcc7b2028d192980c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36ae93b1e350a847a140df7c2e99952c896132e707b628dcc7b2028d192980c7", kill_on_drop: false }`
[INFO] [stdout] 36ae93b1e350a847a140df7c2e99952c896132e707b628dcc7b2028d192980c7
