[INFO] fetching crate tweakster 0.0.3...
[INFO] testing tweakster-0.0.3 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate tweakster 0.0.3 into /workspace/builds/worker-1-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-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tweakster 0.0.3 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ef94ba7e62df89effe4bb96b8380958d48f73ff46d5f04f5eaefc05a3403e73d
[INFO] running `Command { std: "docker" "start" "ef94ba7e62df89effe4bb96b8380958d48f73ff46d5f04f5eaefc05a3403e73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef94ba7e62df89effe4bb96b8380958d48f73ff46d5f04f5eaefc05a3403e73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ef94ba7e62df89effe4bb96b8380958d48f73ff46d5f04f5eaefc05a3403e73d" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef94ba7e62df89effe4bb96b8380958d48f73ff46d5f04f5eaefc05a3403e73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ef94ba7e62df89effe4bb96b8380958d48f73ff46d5f04f5eaefc05a3403e73d" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling version_check v0.9.4
[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 bindgen v0.59.2
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling serde v1.0.136
[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 unicode-width v0.1.9
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling tracing-core v0.1.28
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling clang-sys v1.3.3
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling scroll_derive v0.10.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.22
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling smart-default v0.6.0
[INFO] [stderr]    Compiling merge_derive v0.1.0
[INFO] [stderr]    Compiling merge v0.1.0
[INFO] [stderr]    Compiling loopdev v0.4.0
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling scroll v0.10.2
[INFO] [stderr]    Compiling goblin v0.2.3
[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/cdc55ef014bcec35/out/build_script_build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (880) 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:     0x5dafa4413571 - std[617be2ca0a6fd877]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5dafa4413571 - std[617be2ca0a6fd877]::backtrace_rs::backtrace::trace_unsynchronized::<std[617be2ca0a6fd877]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5dafa4413571 - std[617be2ca0a6fd877]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x5dafa4413571 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x5dafa442939a - <core[a373ad73a504971]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5dafa442939a - core[a373ad73a504971]::fmt::write
[INFO] [stderr]      6:     0x5dafa44182fc - core[a373ad73a504971]::io::write::default_write_fmt::<std[617be2ca0a6fd877]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/io/write.rs:402:11
[INFO] [stderr]      7:     0x5dafa44182fc - <std[617be2ca0a6fd877]::sys::stdio::unix::Stderr as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/io/write.rs:335:13
[INFO] [stderr]      8:     0x5dafa43f3c16 - <std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x5dafa43f3c16 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:289:27
[INFO] [stderr]     10:     0x5dafa440def1 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:316:9
[INFO] [stderr]     11:     0x5dafa440e21b - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:811:13
[INFO] [stderr]     12:     0x5dafa43f3cc2 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:685:13
[INFO] [stderr]     13:     0x5dafa43ec909 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x5dafa43f44fd - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:676:5
[INFO] [stderr]     15:     0x5dafa4429c3c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5dafa43d46eb - proc_macro2[595fe5a23d2c80b0]::fallback::validate_ident
[INFO] [stderr]     17:     0x5dafa43d3c41 - <proc_macro2[595fe5a23d2c80b0]::fallback::Ident>::_new
[INFO] [stderr]     18:     0x5dafa43d3bff - <proc_macro2[595fe5a23d2c80b0]::fallback::Ident>::new
[INFO] [stderr]     19:     0x5dafa43c8678 - <proc_macro2[595fe5a23d2c80b0]::imp::Ident>::new
[INFO] [stderr]     20:     0x5dafa43c0ae8 - <proc_macro2[595fe5a23d2c80b0]::Ident>::new
[INFO] [stderr]     21:     0x5dafa4224d0f - <bindgen[7a27fdeed91f625d]::ir::context::BindgenContext>::rust_ident_raw::<alloc[2e1b2a31b91974c5]::borrow::Cow<str>>
[INFO] [stderr]     22:     0x5dafa4224719 - <bindgen[7a27fdeed91f625d]::ir::context::BindgenContext>::rust_ident::<&alloc[2e1b2a31b91974c5]::string::String>
[INFO] [stderr]     23:     0x5dafa41d4986 - <bindgen[7a27fdeed91f625d]::ir::enum_ty::Enum as bindgen[7a27fdeed91f625d]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     24:     0x5dafa41e621e - <bindgen[7a27fdeed91f625d]::ir::ty::Type as bindgen[7a27fdeed91f625d]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     25:     0x5dafa419dd3f - <bindgen[7a27fdeed91f625d]::ir::item::Item as bindgen[7a27fdeed91f625d]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     26:     0x5dafa41a7ea5 - <bindgen[7a27fdeed91f625d]::ir::module::Module as bindgen[7a27fdeed91f625d]::codegen::CodeGenerator>::codegen::{closure#0}
[INFO] [stderr]     27:     0x5dafa41e5777 - <bindgen[7a27fdeed91f625d]::ir::module::Module as bindgen[7a27fdeed91f625d]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     28:     0x5dafa419dd24 - <bindgen[7a27fdeed91f625d]::ir::item::Item as bindgen[7a27fdeed91f625d]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     29:     0x5dafa41a771c - bindgen[7a27fdeed91f625d]::codegen::codegen::{closure#0}
[INFO] [stderr]     30:     0x5dafa4225cb8 - <bindgen[7a27fdeed91f625d]::ir::context::BindgenContext>::gen::<bindgen[7a27fdeed91f625d]::codegen::codegen::{closure#0}, alloc[2e1b2a31b91974c5]::vec::Vec<proc_macro2[595fe5a23d2c80b0]::TokenStream>>
[INFO] [stderr]     31:     0x5dafa41b4adf - bindgen[7a27fdeed91f625d]::codegen::codegen
[INFO] [stderr]     32:     0x5dafa41f7837 - <bindgen[7a27fdeed91f625d]::Bindings>::generate
[INFO] [stderr]     33:     0x5dafa41f438d - <bindgen[7a27fdeed91f625d]::Builder>::generate
[INFO] [stderr]     34:     0x5dafa411b636 - build_script_build[906ae8e878f12ab0]::main
[INFO] [stderr]     35:     0x5dafa411c6b3 - <fn() as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     36:     0x5dafa411b466 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     37:     0x5dafa411b569 - std[617be2ca0a6fd877]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     38:     0x5dafa440d358 - <&dyn core[a373ad73a504971]::ops::function::Fn<(), Output = i32> + core[a373ad73a504971]::marker::Sync + core[a373ad73a504971]::panic::unwind_safe::RefUnwindSafe as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     39:     0x5dafa440d358 - std[617be2ca0a6fd877]::panicking::catch_unwind::do_call::<&dyn core[a373ad73a504971]::ops::function::Fn<(), Output = i32> + core[a373ad73a504971]::marker::Sync + core[a373ad73a504971]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:573:43
[INFO] [stderr]     40:     0x5dafa440d358 - std[617be2ca0a6fd877]::panicking::catch_unwind::<i32, &dyn core[a373ad73a504971]::ops::function::Fn<(), Output = i32> + core[a373ad73a504971]::marker::Sync + core[a373ad73a504971]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:541:19
[INFO] [stderr]     41:     0x5dafa440d358 - std[617be2ca0a6fd877]::panic::catch_unwind::<&dyn core[a373ad73a504971]::ops::function::Fn<(), Output = i32> + core[a373ad73a504971]::marker::Sync + core[a373ad73a504971]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panic.rs:359:14
[INFO] [stderr]     42:     0x5dafa440d358 - std[617be2ca0a6fd877]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/rt.rs:175:24
[INFO] [stderr]     43:     0x5dafa440d358 - std[617be2ca0a6fd877]::panicking::catch_unwind::do_call::<std[617be2ca0a6fd877]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:573:43
[INFO] [stderr]     44:     0x5dafa440d358 - std[617be2ca0a6fd877]::panicking::catch_unwind::<isize, std[617be2ca0a6fd877]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panicking.rs:541:19
[INFO] [stderr]     45:     0x5dafa440d358 - std[617be2ca0a6fd877]::panic::catch_unwind::<std[617be2ca0a6fd877]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/panic.rs:359:14
[INFO] [stderr]     46:     0x5dafa440d358 - std[617be2ca0a6fd877]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/std/src/rt.rs:171:5
[INFO] [stderr]     47:     0x5dafa411b3e1 - std[617be2ca0a6fd877]::rt::lang_start::<()>
[INFO] [stderr]     48:     0x5dafa411c905 - main
[INFO] [stderr]     49:     0x7b999d88e601 - <unknown>
[INFO] [stderr]     50:     0x7b999d88e718 - __libc_start_main
[INFO] [stderr]     51:     0x5dafa411b025 - _start
[INFO] [stderr]     52:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ef94ba7e62df89effe4bb96b8380958d48f73ff46d5f04f5eaefc05a3403e73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef94ba7e62df89effe4bb96b8380958d48f73ff46d5f04f5eaefc05a3403e73d", kill_on_drop: false }`
[INFO] [stdout] ef94ba7e62df89effe4bb96b8380958d48f73ff46d5f04f5eaefc05a3403e73d
