[INFO] cloning repository https://github.com/thlorenz/workout-frs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thlorenz/workout-frs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthlorenz%2Fworkout-frs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthlorenz%2Fworkout-frs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95dd5764b83d9d4b65b02317f323c2db23a0795a
[INFO] checking thlorenz/workout-frs against try#6284d7b4bd27983dba388146648ab844ca7d032f for pr-152971
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthlorenz%2Fworkout-frs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/thlorenz/workout-frs
[INFO] finished tweaking git repo https://github.com/thlorenz/workout-frs
[INFO] tweaked toml for git repo https://github.com/thlorenz/workout-frs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/thlorenz/workout-frs on toolchain 6284d7b4bd27983dba388146648ab844ca7d032f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/thlorenz/workout-frs 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" "+6284d7b4bd27983dba388146648ab844ca7d032f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f70a9b915dd78ef5480ce158cc66042bf8ebb55f1e512ea85608675b7e8bd489
[INFO] running `Command { std: "docker" "start" "-a" "f70a9b915dd78ef5480ce158cc66042bf8ebb55f1e512ea85608675b7e8bd489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f70a9b915dd78ef5480ce158cc66042bf8ebb55f1e512ea85608675b7e8bd489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f70a9b915dd78ef5480ce158cc66042bf8ebb55f1e512ea85608675b7e8bd489", kill_on_drop: false }`
[INFO] [stdout] f70a9b915dd78ef5480ce158cc66042bf8ebb55f1e512ea85608675b7e8bd489
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+6284d7b4bd27983dba388146648ab844ca7d032f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8b845eac275226306c0e12bd8167c21de4dcb6a573a4b8bb06868350b98cae3
[INFO] running `Command { std: "docker" "start" "-a" "b8b845eac275226306c0e12bd8167c21de4dcb6a573a4b8bb06868350b98cae3", kill_on_drop: false }`
[INFO] [stderr]    Compiling workout_ffi v0.1.0 (/opt/rustwide/workdir/native/workout_ffi)
[INFO] [stderr]     Checking workout v0.1.0 (/opt/rustwide/workdir/native/workout)
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]   --> native/workout_ffi/build.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout]  9 | /         format!(
[INFO] [stdout] 10 | |             "{} failed: \n{}",
[INFO] [stdout] 11 | |             cmd,
[INFO] [stdout] 12 | |             std::str::from_utf8(&output.stderr).unwrap()
[INFO] [stdout] 13 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout]  9 |         let _ = format!(
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: failed to run custom build command for `workout_ffi v0.1.0 (/opt/rustwide/workdir/native/workout_ffi)`
[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/workout_ffi-3de7b4059bcc5bd6/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (63) panicked at native/workout_ffi/build.rs:45:10:
[INFO] [stderr]   Failed to create binding.h: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x58489a0ecada - std[1969066a15ec9922]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x58489a0ecada - std[1969066a15ec9922]::backtrace_rs::backtrace::trace_unsynchronized::<std[1969066a15ec9922]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x58489a0ecada - std[1969066a15ec9922]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x58489a0ecada - <<std[1969066a15ec9922]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[e5d685cfac353eb8]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x58489a0fd75a - <core[e5d685cfac353eb8]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x58489a0fd75a - core[e5d685cfac353eb8]::fmt::write
[INFO] [stderr]      6:     0x58489a0f05e2 - std[1969066a15ec9922]::io::default_write_fmt::<std[1969066a15ec9922]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x58489a0f05e2 - <std[1969066a15ec9922]::sys::stdio::unix::Stderr as std[1969066a15ec9922]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x58489a0d280f - <std[1969066a15ec9922]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x58489a0d280f - std[1969066a15ec9922]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x58489a0e89c1 - std[1969066a15ec9922]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x58489a0e8b7b - std[1969066a15ec9922]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x58489a0d28c8 - std[1969066a15ec9922]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x58489a0ca469 - std[1969066a15ec9922]::sys::backtrace::__rust_end_short_backtrace::<std[1969066a15ec9922]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x58489a0d30ad - __rustc[feed6f543e575900]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x58489a0fdf6c - core[e5d685cfac353eb8]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x58489a0fdd42 - core[e5d685cfac353eb8]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x58489a0b8f12 - <core[e5d685cfac353eb8]::result::Result<std[1969066a15ec9922]::process::Output, std[1969066a15ec9922]::io::error::Error>>::expect
[INFO] [stderr]     18:     0x58489a0b873a - build_script_build[2bcff22aab171a30]::main
[INFO] [stderr]     19:     0x58489a0bb7c3 - <fn() as core[e5d685cfac353eb8]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     20:     0x58489a0b7856 - std[1969066a15ec9922]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     21:     0x58489a0b7d49 - std[1969066a15ec9922]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     22:     0x58489a0e7b94 - <&dyn core[e5d685cfac353eb8]::ops::function::Fn<(), Output = i32> + core[e5d685cfac353eb8]::panic::unwind_safe::RefUnwindSafe + core[e5d685cfac353eb8]::marker::Sync as core[e5d685cfac353eb8]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x58489a0e7b94 - std[1969066a15ec9922]::panicking::catch_unwind::do_call::<&dyn core[e5d685cfac353eb8]::ops::function::Fn<(), Output = i32> + core[e5d685cfac353eb8]::panic::unwind_safe::RefUnwindSafe + core[e5d685cfac353eb8]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/panicking.rs:581:40
[INFO] [stderr]     24:     0x58489a0e7b94 - std[1969066a15ec9922]::panicking::catch_unwind::<i32, &dyn core[e5d685cfac353eb8]::ops::function::Fn<(), Output = i32> + core[e5d685cfac353eb8]::panic::unwind_safe::RefUnwindSafe + core[e5d685cfac353eb8]::marker::Sync>
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/panicking.rs:544:19
[INFO] [stderr]     25:     0x58489a0e7b94 - std[1969066a15ec9922]::panic::catch_unwind::<&dyn core[e5d685cfac353eb8]::ops::function::Fn<(), Output = i32> + core[e5d685cfac353eb8]::panic::unwind_safe::RefUnwindSafe + core[e5d685cfac353eb8]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x58489a0e7b94 - std[1969066a15ec9922]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x58489a0e7b94 - std[1969066a15ec9922]::panicking::catch_unwind::do_call::<std[1969066a15ec9922]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/panicking.rs:581:40
[INFO] [stderr]     28:     0x58489a0e7b94 - std[1969066a15ec9922]::panicking::catch_unwind::<isize, std[1969066a15ec9922]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/panicking.rs:544:19
[INFO] [stderr]     29:     0x58489a0e7b94 - std[1969066a15ec9922]::panic::catch_unwind::<std[1969066a15ec9922]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x58489a0e7b94 - std[1969066a15ec9922]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/6284d7b4bd27983dba388146648ab844ca7d032f/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x58489a0b6f61 - std[1969066a15ec9922]::rt::lang_start::<()>
[INFO] [stderr]     32:     0x58489a0bbd05 - main
[INFO] [stderr]     33:     0x7d34bc3da1ca - <unknown>
[INFO] [stderr]     34:     0x7d34bc3da28b - __libc_start_main
[INFO] [stderr]     35:     0x58489a0b6265 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "b8b845eac275226306c0e12bd8167c21de4dcb6a573a4b8bb06868350b98cae3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8b845eac275226306c0e12bd8167c21de4dcb6a573a4b8bb06868350b98cae3", kill_on_drop: false }`
[INFO] [stdout] b8b845eac275226306c0e12bd8167c21de4dcb6a573a4b8bb06868350b98cae3