[INFO] fetching crate tweakster 0.0.3...
[INFO] testing tweakster-0.0.3 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate tweakster 0.0.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate tweakster 0.0.3
[INFO] finished tweaking crates.io crate tweakster 0.0.3
[INFO] tweaked toml for crates.io crate tweakster 0.0.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tweakster 0.0.3 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tweakster 0.0.3 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0fd038478a02f5aecf182f7149b2e756cd4b66c3dc20470ded1dad96fbb2194
[INFO] running `Command { std: "docker" "start" "-a" "e0fd038478a02f5aecf182f7149b2e756cd4b66c3dc20470ded1dad96fbb2194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0fd038478a02f5aecf182f7149b2e756cd4b66c3dc20470ded1dad96fbb2194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0fd038478a02f5aecf182f7149b2e756cd4b66c3dc20470ded1dad96fbb2194", kill_on_drop: false }`
[INFO] [stdout] e0fd038478a02f5aecf182f7149b2e756cd4b66c3dc20470ded1dad96fbb2194
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06c70fbd08d3b1bff3bb29f22e550eba22166d12e33b5b0a5a0dfde29dd16fb9
[INFO] running `Command { std: "docker" "start" "-a" "06c70fbd08d3b1bff3bb29f22e550eba22166d12e33b5b0a5a0dfde29dd16fb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling clang-sys v1.3.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling tracing-core v0.1.28
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling scroll_derive v0.10.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.22
[INFO] [stderr]    Compiling smart-default v0.6.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling merge_derive v0.1.0
[INFO] [stderr]    Compiling scroll v0.10.2
[INFO] [stderr]    Compiling merge v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling goblin v0.2.3
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling tracing v0.1.35
[INFO] [stderr]    Compiling loopdev v0.4.0
[INFO] [stderr] error: failed to run custom build command for `loopdev v0.4.0`
[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/loopdev-d9dac3f6e5bafc77/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (1070) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.37/src/fallback.rs:701:9:
[INFO] [stderr]   "enum_(unnamed_at_/usr/include/linux/loop_h_16_1)" is not a valid Ident
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5a39e185f25a - std[ec419fa8110287d5]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5a39e185f25a - std[ec419fa8110287d5]::backtrace_rs::backtrace::trace_unsynchronized::<std[ec419fa8110287d5]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5a39e185f25a - std[ec419fa8110287d5]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x5a39e185f25a - <<std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[35159d6ffb30e017]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x5a39e18748ca - <core[35159d6ffb30e017]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5a39e18748ca - core[35159d6ffb30e017]::fmt::write
[INFO] [stderr]      6:     0x5a39e1864192 - std[ec419fa8110287d5]::io::default_write_fmt::<std[ec419fa8110287d5]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:621:11
[INFO] [stderr]      7:     0x5a39e1864192 - <std[ec419fa8110287d5]::sys::stdio::unix::Stderr as std[ec419fa8110287d5]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:1976:13
[INFO] [stderr]      8:     0x5a39e18425cf - <std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x5a39e18425cf - std[ec419fa8110287d5]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x5a39e1859cd1 - std[ec419fa8110287d5]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x5a39e1859f4b - std[ec419fa8110287d5]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x5a39e1842688 - std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x5a39e1839f69 - std[ec419fa8110287d5]::sys::backtrace::__rust_end_short_backtrace::<std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x5a39e1842fed - __rustc[cfb3622dd870db93]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x5a39e187510c - core[35159d6ffb30e017]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5a39e181c07b - proc_macro2[becf1dfd97c6916b]::fallback::validate_ident
[INFO] [stderr]     17:     0x5a39e181b5a1 - <proc_macro2[becf1dfd97c6916b]::fallback::Ident>::_new
[INFO] [stderr]     18:     0x5a39e181b55f - <proc_macro2[becf1dfd97c6916b]::fallback::Ident>::new
[INFO] [stderr]     19:     0x5a39e18130f8 - <proc_macro2[becf1dfd97c6916b]::imp::Ident>::new
[INFO] [stderr]     20:     0x5a39e180b218 - <proc_macro2[becf1dfd97c6916b]::Ident>::new
[INFO] [stderr]     21:     0x5a39e15766df - <bindgen[2e32a2432b01f900]::ir::context::BindgenContext>::rust_ident_raw::<alloc[a8a7aba520129d98]::borrow::Cow<str>>
[INFO] [stderr]     22:     0x5a39e1576040 - <bindgen[2e32a2432b01f900]::ir::context::BindgenContext>::rust_ident::<&alloc[a8a7aba520129d98]::string::String>
[INFO] [stderr]     23:     0x5a39e165cd86 - <bindgen[2e32a2432b01f900]::ir::enum_ty::Enum as bindgen[2e32a2432b01f900]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     24:     0x5a39e1633f4e - <bindgen[2e32a2432b01f900]::ir::ty::Type as bindgen[2e32a2432b01f900]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     25:     0x5a39e15e1248 - <bindgen[2e32a2432b01f900]::ir::item::Item as bindgen[2e32a2432b01f900]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     26:     0x5a39e15c3f95 - <bindgen[2e32a2432b01f900]::ir::module::Module as bindgen[2e32a2432b01f900]::codegen::CodeGenerator>::codegen::{closure#0}
[INFO] [stderr]     27:     0x5a39e1621f87 - <bindgen[2e32a2432b01f900]::ir::module::Module as bindgen[2e32a2432b01f900]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     28:     0x5a39e15e122d - <bindgen[2e32a2432b01f900]::ir::item::Item as bindgen[2e32a2432b01f900]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     29:     0x5a39e15c380c - bindgen[2e32a2432b01f900]::codegen::codegen::{closure#0}
[INFO] [stderr]     30:     0x5a39e1577968 - <bindgen[2e32a2432b01f900]::ir::context::BindgenContext>::gen::<bindgen[2e32a2432b01f900]::codegen::codegen::{closure#0}, alloc[a8a7aba520129d98]::vec::Vec<proc_macro2[becf1dfd97c6916b]::TokenStream>>
[INFO] [stderr]     31:     0x5a39e15cec7f - bindgen[2e32a2432b01f900]::codegen::codegen
[INFO] [stderr]     32:     0x5a39e161e6b9 - <bindgen[2e32a2432b01f900]::Bindings>::generate
[INFO] [stderr]     33:     0x5a39e161b4af - <bindgen[2e32a2432b01f900]::Builder>::generate
[INFO] [stderr]     34:     0x5a39e1544e46 - build_script_build[a0017c92afe2dd02]::main
[INFO] [stderr]     35:     0x5a39e1545e83 - <fn() as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     36:     0x5a39e1544d66 - std[ec419fa8110287d5]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     37:     0x5a39e1544d79 - std[ec419fa8110287d5]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     38:     0x5a39e1858e27 - <&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     39:     0x5a39e1858e27 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stderr]     40:     0x5a39e1858e27 - std[ec419fa8110287d5]::panicking::catch_unwind::<i32, &dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stderr]     41:     0x5a39e1858e27 - std[ec419fa8110287d5]::panic::catch_unwind::<&dyn core[35159d6ffb30e017]::ops::function::Fn<(), Output = i32> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stderr]     42:     0x5a39e1858e27 - std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:175:24
[INFO] [stderr]     43:     0x5a39e1858e27 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stderr]     44:     0x5a39e1858e27 - std[ec419fa8110287d5]::panicking::catch_unwind::<isize, std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stderr]     45:     0x5a39e1858e27 - std[ec419fa8110287d5]::panic::catch_unwind::<std[ec419fa8110287d5]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stderr]     46:     0x5a39e1858e27 - std[ec419fa8110287d5]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/rt.rs:171:5
[INFO] [stderr]     47:     0x5a39e1544d51 - std[ec419fa8110287d5]::rt::lang_start::<()>
[INFO] [stderr]     48:     0x5a39e1546185 - main
[INFO] [stderr]     49:     0x765c721521ca - <unknown>
[INFO] [stderr]     50:     0x765c7215228b - __libc_start_main
[INFO] [stderr]     51:     0x5a39e15447d5 - _start
[INFO] [stderr]     52:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "06c70fbd08d3b1bff3bb29f22e550eba22166d12e33b5b0a5a0dfde29dd16fb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06c70fbd08d3b1bff3bb29f22e550eba22166d12e33b5b0a5a0dfde29dd16fb9", kill_on_drop: false }`
[INFO] [stdout] 06c70fbd08d3b1bff3bb29f22e550eba22166d12e33b5b0a5a0dfde29dd16fb9
