[INFO] fetching crate cyt4bb_a 0.0.1...
[INFO] testing cyt4bb_a-0.0.1 against try#311784882baa42a9638298cb325fa01a062c9d0f+cargoflags=-Zbuild-dir-new-layout for pr-149852
[INFO] extracting crate cyt4bb_a 0.0.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate cyt4bb_a 0.0.1
[INFO] finished tweaking crates.io crate cyt4bb_a 0.0.1
[INFO] tweaked toml for crates.io crate cyt4bb_a 0.0.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cyt4bb_a 0.0.1 on toolchain 311784882baa42a9638298cb325fa01a062c9d0f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "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" "+311784882baa42a9638298cb325fa01a062c9d0f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c623376c6b46d94f1c2f49da3537fc3d3aef77c1c68bbde39f36da9c85b5382c
[INFO] running `Command { std: "docker" "start" "-a" "c623376c6b46d94f1c2f49da3537fc3d3aef77c1c68bbde39f36da9c85b5382c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c623376c6b46d94f1c2f49da3537fc3d3aef77c1c68bbde39f36da9c85b5382c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c623376c6b46d94f1c2f49da3537fc3d3aef77c1c68bbde39f36da9c85b5382c", kill_on_drop: false }`
[INFO] [stdout] c623376c6b46d94f1c2f49da3537fc3d3aef77c1c68bbde39f36da9c85b5382c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 61d2a8a2b929c2aba533453b6db0a7df7a014a55a498b179d4d1a8989591d00c
[INFO] running `Command { std: "docker" "start" "-a" "61d2a8a2b929c2aba533453b6db0a7df7a014a55a498b179d4d1a8989591d00c", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cyt4bb_a v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling volatile-register v0.2.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr] error: failed to run custom build command for `cyt4bb_a v0.0.1 (/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/cyt4bb_a/1c1243493be31025/build-script/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (137) panicked at build.rs:20:13:
[INFO] [stderr]   Only thumbv7em-none-eabihf and thumbv6m-none-eabi target triple are supported
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x650a0437ab12 - std[7ec1163218fd4288]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x650a0437ab12 - std[7ec1163218fd4288]::backtrace_rs::backtrace::trace_unsynchronized::<std[7ec1163218fd4288]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x650a0437ab12 - std[7ec1163218fd4288]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:68:9
[INFO] [stderr]      3:     0x650a0437ab12 - <<std[7ec1163218fd4288]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[784384805ecffc2c]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:38:26
[INFO] [stderr]      4:     0x650a0438c047 - <core[784384805ecffc2c]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x650a0438c047 - core[784384805ecffc2c]::fmt::write
[INFO] [stderr]      6:     0x650a0437f056 - std[7ec1163218fd4288]::io::default_write_fmt::<std[7ec1163218fd4288]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/io/mod.rs:614:11
[INFO] [stderr]      7:     0x650a0437f056 - <std[7ec1163218fd4288]::sys::stdio::unix::Stderr as std[7ec1163218fd4288]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/io/mod.rs:1969:13
[INFO] [stderr]      8:     0x650a0436589f - <std[7ec1163218fd4288]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:41:9
[INFO] [stderr]      9:     0x650a0436589f - std[7ec1163218fd4288]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x650a04376cc1 - std[7ec1163218fd4288]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x650a04376e7b - std[7ec1163218fd4288]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x650a0436598a - std[7ec1163218fd4288]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:691:13
[INFO] [stderr]     13:     0x650a0435ad69 - std[7ec1163218fd4288]::sys::backtrace::__rust_end_short_backtrace::<std[7ec1163218fd4288]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:176:18
[INFO] [stderr]     14:     0x650a043662bd - __rustc[cbcfe5aadef28f7f]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x650a0438c68c - core[784384805ecffc2c]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x650a0434e5e6 - build_script_build[15d783149a172888]::main
[INFO] [stderr]     17:     0x650a0434f5d3 - <fn() as core[784384805ecffc2c]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     18:     0x650a0434dbe6 - std[7ec1163218fd4288]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     19:     0x650a0434de99 - std[7ec1163218fd4288]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     20:     0x650a043762b6 - <&dyn core[784384805ecffc2c]::ops::function::Fn<(), Output = i32> + core[784384805ecffc2c]::marker::Sync + core[784384805ecffc2c]::panic::unwind_safe::RefUnwindSafe as core[784384805ecffc2c]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     21:     0x650a043762b6 - std[7ec1163218fd4288]::panicking::catch_unwind::do_call::<&dyn core[784384805ecffc2c]::ops::function::Fn<(), Output = i32> + core[784384805ecffc2c]::marker::Sync + core[784384805ecffc2c]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:581:40
[INFO] [stderr]     22:     0x650a043762b6 - std[7ec1163218fd4288]::panicking::catch_unwind::<i32, &dyn core[784384805ecffc2c]::ops::function::Fn<(), Output = i32> + core[784384805ecffc2c]::marker::Sync + core[784384805ecffc2c]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:544:19
[INFO] [stderr]     23:     0x650a043762b6 - std[7ec1163218fd4288]::panic::catch_unwind::<&dyn core[784384805ecffc2c]::ops::function::Fn<(), Output = i32> + core[784384805ecffc2c]::marker::Sync + core[784384805ecffc2c]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panic.rs:359:14
[INFO] [stderr]     24:     0x650a043762b6 - std[7ec1163218fd4288]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/rt.rs:175:24
[INFO] [stderr]     25:     0x650a043762b6 - std[7ec1163218fd4288]::panicking::catch_unwind::do_call::<std[7ec1163218fd4288]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:581:40
[INFO] [stderr]     26:     0x650a043762b6 - std[7ec1163218fd4288]::panicking::catch_unwind::<isize, std[7ec1163218fd4288]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:544:19
[INFO] [stderr]     27:     0x650a043762b6 - std[7ec1163218fd4288]::panic::catch_unwind::<std[7ec1163218fd4288]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panic.rs:359:14
[INFO] [stderr]     28:     0x650a043762b6 - std[7ec1163218fd4288]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/rt.rs:171:5
[INFO] [stderr]     29:     0x650a0434d911 - std[7ec1163218fd4288]::rt::lang_start::<()>
[INFO] [stderr]     30:     0x650a0434fae5 - main
[INFO] [stderr]     31:     0x7d296f4e31ca - <unknown>
[INFO] [stderr]     32:     0x7d296f4e328b - __libc_start_main
[INFO] [stderr]     33:     0x650a0434d525 - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "61d2a8a2b929c2aba533453b6db0a7df7a014a55a498b179d4d1a8989591d00c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61d2a8a2b929c2aba533453b6db0a7df7a014a55a498b179d4d1a8989591d00c", kill_on_drop: false }`
[INFO] [stdout] 61d2a8a2b929c2aba533453b6db0a7df7a014a55a498b179d4d1a8989591d00c