[INFO] fetching crate janet-ll 0.4.1...
[INFO] testing janet-ll-0.4.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate janet-ll 0.4.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate janet-ll 0.4.1
[INFO] finished tweaking crates.io crate janet-ll 0.4.1
[INFO] tweaked toml for crates.io crate janet-ll 0.4.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate janet-ll 0.4.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 55 packages to latest compatible versions
[INFO] [stderr]       Adding bindgen v0.49.4 (available: v0.72.1)
[INFO] [stderr]       Adding shlex v0.1.1 (available: v1.3.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e86970d17a33c921be4a63d08491b91915bf9005de04f47ec881ecba9f50601
[INFO] running `Command { std: "docker" "start" "-a" "4e86970d17a33c921be4a63d08491b91915bf9005de04f47ec881ecba9f50601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e86970d17a33c921be4a63d08491b91915bf9005de04f47ec881ecba9f50601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e86970d17a33c921be4a63d08491b91915bf9005de04f47ec881ecba9f50601", kill_on_drop: false }`
[INFO] [stdout] 4e86970d17a33c921be4a63d08491b91915bf9005de04f47ec881ecba9f50601
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b2babd6c3957c56907b75f55f71610341af7e9dc13802f7166dc25d976f31d4
[INFO] running `Command { std: "docker" "start" "-a" "6b2babd6c3957c56907b75f55f71610341af7e9dc13802f7166dc25d976f31d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.27
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling bindgen v0.49.4
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling addr2line v0.25.1
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling backtrace v0.3.76
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling janet-ll v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `janet-ll v0.4.1 (/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/janet-ll-ffc7c4162805b6fd/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (728) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-0.4.30/src/fallback.rs:594:9:
[INFO] [stderr]   "JanetFuncEnv_union_(unnamed_at__/csrc/janet_h_780_5)" is not a valid Ident
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5f86ca6860da - std[e72de78501789eb0]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5f86ca6860da - std[e72de78501789eb0]::backtrace_rs::backtrace::trace_unsynchronized::<std[e72de78501789eb0]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5f86ca6860da - std[e72de78501789eb0]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x5f86ca6860da - <<std[e72de78501789eb0]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6aaeda2c7ad07a48]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x5f86ca69b8fa - <core[6aaeda2c7ad07a48]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5f86ca69b8fa - core[6aaeda2c7ad07a48]::fmt::write
[INFO] [stderr]      6:     0x5f86ca68b002 - std[e72de78501789eb0]::io::default_write_fmt::<std[e72de78501789eb0]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5f86ca68b002 - <std[e72de78501789eb0]::sys::stdio::unix::Stderr as std[e72de78501789eb0]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x5f86ca66953f - <std[e72de78501789eb0]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x5f86ca66953f - std[e72de78501789eb0]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x5f86ca680ca1 - std[e72de78501789eb0]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x5f86ca680e5b - std[e72de78501789eb0]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x5f86ca6695f8 - std[e72de78501789eb0]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x5f86ca660ed9 - std[e72de78501789eb0]::sys::backtrace::__rust_end_short_backtrace::<std[e72de78501789eb0]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x5f86ca669f5d - __rustc[78a4cf188af856fc]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x5f86ca69c16c - core[6aaeda2c7ad07a48]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5f86ca5535db - proc_macro2[1b2a5f3ea3c19eae]::fallback::validate_ident
[INFO] [stderr]     17:     0x5f86ca5500d1 - <proc_macro2[1b2a5f3ea3c19eae]::fallback::Ident>::_new
[INFO] [stderr]     18:     0x5f86ca55008f - <proc_macro2[1b2a5f3ea3c19eae]::fallback::Ident>::new
[INFO] [stderr]     19:     0x5f86ca54c628 - <proc_macro2[1b2a5f3ea3c19eae]::Ident>::new
[INFO] [stderr]     20:     0x5f86ca2f9e35 - <bindgen[35c9a017f9479a3e]::ir::context::BindgenContext>::rust_ident_raw::<alloc[28d2dab30c1dc666]::borrow::Cow<str>>
[INFO] [stderr]     21:     0x5f86ca2f97a0 - <bindgen[35c9a017f9479a3e]::ir::context::BindgenContext>::rust_ident::<&alloc[28d2dab30c1dc666]::string::String>
[INFO] [stderr]     22:     0x5f86ca28832f - <bindgen[35c9a017f9479a3e]::ir::comp::CompInfo as bindgen[35c9a017f9479a3e]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     23:     0x5f86ca3255ae - <bindgen[35c9a017f9479a3e]::ir::ty::Type as bindgen[35c9a017f9479a3e]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     24:     0x5f86ca2dd39a - <bindgen[35c9a017f9479a3e]::ir::item::Item as bindgen[35c9a017f9479a3e]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     25:     0x5f86ca290616 - <bindgen[35c9a017f9479a3e]::ir::comp::CompInfo as bindgen[35c9a017f9479a3e]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     26:     0x5f86ca3255ae - <bindgen[35c9a017f9479a3e]::ir::ty::Type as bindgen[35c9a017f9479a3e]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     27:     0x5f86ca2dd39a - <bindgen[35c9a017f9479a3e]::ir::item::Item as bindgen[35c9a017f9479a3e]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     28:     0x5f86ca24f9e5 - <bindgen[35c9a017f9479a3e]::ir::module::Module as bindgen[35c9a017f9479a3e]::codegen::CodeGenerator>::codegen::{closure#0}
[INFO] [stderr]     29:     0x5f86ca2c814d - <bindgen[35c9a017f9479a3e]::ir::module::Module as bindgen[35c9a017f9479a3e]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     30:     0x5f86ca2dd372 - <bindgen[35c9a017f9479a3e]::ir::item::Item as bindgen[35c9a017f9479a3e]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     31:     0x5f86ca24f09e - bindgen[35c9a017f9479a3e]::codegen::codegen::{closure#0}
[INFO] [stderr]     32:     0x5f86ca2fb098 - <bindgen[35c9a017f9479a3e]::ir::context::BindgenContext>::gen::<bindgen[35c9a017f9479a3e]::codegen::codegen::{closure#0}, alloc[28d2dab30c1dc666]::vec::Vec<proc_macro2[1b2a5f3ea3c19eae]::TokenStream>>
[INFO] [stderr]     33:     0x5f86ca25dc1f - bindgen[35c9a017f9479a3e]::codegen::codegen
[INFO] [stderr]     34:     0x5f86ca20e570 - <bindgen[35c9a017f9479a3e]::Bindings>::generate
[INFO] [stderr]     35:     0x5f86ca20b1d5 - <bindgen[35c9a017f9479a3e]::Builder>::generate
[INFO] [stderr]     36:     0x5f86ca1ee593 - build_script_build[a8969eede092e8a]::main
[INFO] [stderr]     37:     0x5f86ca1ef753 - <fn() as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     38:     0x5f86ca1ee446 - std[e72de78501789eb0]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     39:     0x5f86ca1ee459 - std[e72de78501789eb0]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     40:     0x5f86ca67fe04 - <&dyn core[6aaeda2c7ad07a48]::ops::function::Fn<(), Output = i32> + core[6aaeda2c7ad07a48]::marker::Sync + core[6aaeda2c7ad07a48]::panic::unwind_safe::RefUnwindSafe as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     41:     0x5f86ca67fe04 - std[e72de78501789eb0]::panicking::catch_unwind::do_call::<&dyn core[6aaeda2c7ad07a48]::ops::function::Fn<(), Output = i32> + core[6aaeda2c7ad07a48]::marker::Sync + core[6aaeda2c7ad07a48]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:581:40
[INFO] [stderr]     42:     0x5f86ca67fe04 - std[e72de78501789eb0]::panicking::catch_unwind::<i32, &dyn core[6aaeda2c7ad07a48]::ops::function::Fn<(), Output = i32> + core[6aaeda2c7ad07a48]::marker::Sync + core[6aaeda2c7ad07a48]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:544:19
[INFO] [stderr]     43:     0x5f86ca67fe04 - std[e72de78501789eb0]::panic::catch_unwind::<&dyn core[6aaeda2c7ad07a48]::ops::function::Fn<(), Output = i32> + core[6aaeda2c7ad07a48]::marker::Sync + core[6aaeda2c7ad07a48]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panic.rs:359:14
[INFO] [stderr]     44:     0x5f86ca67fe04 - std[e72de78501789eb0]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/rt.rs:175:24
[INFO] [stderr]     45:     0x5f86ca67fe04 - std[e72de78501789eb0]::panicking::catch_unwind::do_call::<std[e72de78501789eb0]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:581:40
[INFO] [stderr]     46:     0x5f86ca67fe04 - std[e72de78501789eb0]::panicking::catch_unwind::<isize, std[e72de78501789eb0]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:544:19
[INFO] [stderr]     47:     0x5f86ca67fe04 - std[e72de78501789eb0]::panic::catch_unwind::<std[e72de78501789eb0]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panic.rs:359:14
[INFO] [stderr]     48:     0x5f86ca67fe04 - std[e72de78501789eb0]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/rt.rs:171:5
[INFO] [stderr]     49:     0x5f86ca1ee431 - std[e72de78501789eb0]::rt::lang_start::<()>
[INFO] [stderr]     50:     0x5f86ca1efa55 - main
[INFO] [stderr]     51:     0x7e6d65b721ca - <unknown>
[INFO] [stderr]     52:     0x7e6d65b7228b - __libc_start_main
[INFO] [stderr]     53:     0x5f86ca1edb55 - _start
[INFO] [stderr]     54:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "6b2babd6c3957c56907b75f55f71610341af7e9dc13802f7166dc25d976f31d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b2babd6c3957c56907b75f55f71610341af7e9dc13802f7166dc25d976f31d4", kill_on_drop: false }`
[INFO] [stdout] 6b2babd6c3957c56907b75f55f71610341af7e9dc13802f7166dc25d976f31d4