[INFO] cloning repository https://github.com/AustinHaugerud/mb_ext_script
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AustinHaugerud/mb_ext_script" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAustinHaugerud%2Fmb_ext_script", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAustinHaugerud%2Fmb_ext_script'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74dcc1b8e3e80b96228f9e729c5de9f04f064a7d
[INFO] checking AustinHaugerud/mb_ext_script against master#f8463896a9b36a04899c013bd8825a7fd29dd7a4 for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAustinHaugerud%2Fmb_ext_script" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AustinHaugerud/mb_ext_script
[INFO] finished tweaking git repo https://github.com/AustinHaugerud/mb_ext_script
[INFO] tweaked toml for git repo https://github.com/AustinHaugerud/mb_ext_script written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AustinHaugerud/mb_ext_script on toolchain f8463896a9b36a04899c013bd8825a7fd29dd7a4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AustinHaugerud/mb_ext_script already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest_generator v2.1.0
[INFO] [stderr]   Downloaded pest_meta v2.1.1
[INFO] [stderr]   Downloaded utf8-ranges v1.0.3
[INFO] [stderr]   Downloaded python27-sys v0.2.1
[INFO] [stderr]   Downloaded regex v1.1.7
[INFO] [stderr]   Downloaded pest v2.1.1
[INFO] [stderr]   Downloaded cpython v0.2.1
[INFO] [stderr]   Downloaded syn v0.15.35
[INFO] [stderr]   Downloaded regex-syntax v0.6.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07f5b24b0c0267f18dea03cbca3ca3d3d1c6d0e9b854ff41461a18a04e26a935
[INFO] running `Command { std: "docker" "start" "-a" "07f5b24b0c0267f18dea03cbca3ca3d3d1c6d0e9b854ff41461a18a04e26a935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07f5b24b0c0267f18dea03cbca3ca3d3d1c6d0e9b854ff41461a18a04e26a935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07f5b24b0c0267f18dea03cbca3ca3d3d1c6d0e9b854ff41461a18a04e26a935", kill_on_drop: false }`
[INFO] [stdout] 07f5b24b0c0267f18dea03cbca3ca3d3d1c6d0e9b854ff41461a18a04e26a935
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c10cd617d9fa04195c6b2235b34ff3d7c380b82cc1d6e499dadd69718f4762bb
[INFO] running `Command { std: "docker" "start" "-a" "c10cd617d9fa04195c6b2235b34ff3d7c380b82cc1d6e499dadd69718f4762bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling cpython v0.2.1
[INFO] [stderr]     Checking ucd-trie v0.1.1
[INFO] [stderr]    Compiling pest v2.1.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.7
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]    Compiling pest_meta v2.1.1
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling python27-sys v0.2.1
[INFO] [stderr] error: failed to run custom build command for `python27-sys v0.2.1`
[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/python27-sys-8ac79985d5f31811/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (359) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/python27-sys-0.2.1/build.rs:402:65:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: "failed to run python interpreter `\"python\" \"-c\" \"import sys; import sysconfig; print(sys.executable); print(sys.version_info[0:2]); print(sysconfig.get_config_var('LIBDIR')); print(sysconfig.get_config_var('Py_ENABLE_SHARED')); print(sysconfig.get_config_var('LDVERSION') or '%s%s' % (sysconfig.get_config_var('py_version_short'), sysconfig.get_config_var('DEBUG_EXT') or '')); print(sys.exec_prefix);\"`: No such file or directory (os error 2)"
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5a69333674ba - std[d6797bd5c5b87734]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5a69333674ba - std[d6797bd5c5b87734]::backtrace_rs::backtrace::trace_unsynchronized::<std[d6797bd5c5b87734]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5a69333674ba - std[d6797bd5c5b87734]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x5a69333674ba - <<std[d6797bd5c5b87734]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[41b2f257aac66749]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x5a693337af8a - <core[41b2f257aac66749]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5a693337af8a - core[41b2f257aac66749]::fmt::write
[INFO] [stderr]      6:     0x5a693336cc02 - std[d6797bd5c5b87734]::io::default_write_fmt::<std[d6797bd5c5b87734]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5a693336cc02 - <std[d6797bd5c5b87734]::sys::stdio::unix::Stderr as std[d6797bd5c5b87734]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x5a693334c5bf - <std[d6797bd5c5b87734]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x5a693334c5bf - std[d6797bd5c5b87734]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x5a69333628d1 - std[d6797bd5c5b87734]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x5a6933362a8b - std[d6797bd5c5b87734]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x5a693334c678 - std[d6797bd5c5b87734]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x5a6933344069 - std[d6797bd5c5b87734]::sys::backtrace::__rust_end_short_backtrace::<std[d6797bd5c5b87734]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x5a693334cfdd - __rustc[54dc6978d45d35b1]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x5a693337b6cc - core[41b2f257aac66749]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5a693337b442 - core[41b2f257aac66749]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x5a69332329ea - build_script_build[5a26b59c7def29c4]::main
[INFO] [stderr]     18:     0x5a6933229ec3 - <fn() as core[41b2f257aac66749]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     19:     0x5a693322cfd6 - std[d6797bd5c5b87734]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     20:     0x5a6933222b69 - std[d6797bd5c5b87734]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     21:     0x5a6933361b66 - <&dyn core[41b2f257aac66749]::ops::function::Fn<(), Output = i32> + core[41b2f257aac66749]::panic::unwind_safe::RefUnwindSafe + core[41b2f257aac66749]::marker::Sync as core[41b2f257aac66749]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x5a6933361b66 - std[d6797bd5c5b87734]::panicking::catch_unwind::do_call::<&dyn core[41b2f257aac66749]::ops::function::Fn<(), Output = i32> + core[41b2f257aac66749]::panic::unwind_safe::RefUnwindSafe + core[41b2f257aac66749]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/panicking.rs:581:40
[INFO] [stderr]     23:     0x5a6933361b66 - std[d6797bd5c5b87734]::panicking::catch_unwind::<i32, &dyn core[41b2f257aac66749]::ops::function::Fn<(), Output = i32> + core[41b2f257aac66749]::panic::unwind_safe::RefUnwindSafe + core[41b2f257aac66749]::marker::Sync>
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/panicking.rs:544:19
[INFO] [stderr]     24:     0x5a6933361b66 - std[d6797bd5c5b87734]::panic::catch_unwind::<&dyn core[41b2f257aac66749]::ops::function::Fn<(), Output = i32> + core[41b2f257aac66749]::panic::unwind_safe::RefUnwindSafe + core[41b2f257aac66749]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x5a6933361b66 - std[d6797bd5c5b87734]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x5a6933361b66 - std[d6797bd5c5b87734]::panicking::catch_unwind::do_call::<std[d6797bd5c5b87734]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/panicking.rs:581:40
[INFO] [stderr]     27:     0x5a6933361b66 - std[d6797bd5c5b87734]::panicking::catch_unwind::<isize, std[d6797bd5c5b87734]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/panicking.rs:544:19
[INFO] [stderr]     28:     0x5a6933361b66 - std[d6797bd5c5b87734]::panic::catch_unwind::<std[d6797bd5c5b87734]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x5a6933361b66 - std[d6797bd5c5b87734]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x5a6933220ca1 - std[d6797bd5c5b87734]::rt::lang_start::<()>
[INFO] [stderr]     31:     0x5a69332348c5 - main
[INFO] [stderr]     32:     0x7c596934b1ca - <unknown>
[INFO] [stderr]     33:     0x7c596934b28b - __libc_start_main
[INFO] [stderr]     34:     0x5a69332205a5 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "c10cd617d9fa04195c6b2235b34ff3d7c380b82cc1d6e499dadd69718f4762bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c10cd617d9fa04195c6b2235b34ff3d7c380b82cc1d6e499dadd69718f4762bb", kill_on_drop: false }`
[INFO] [stdout] c10cd617d9fa04195c6b2235b34ff3d7c380b82cc1d6e499dadd69718f4762bb
