[INFO] crate rustmann 0.1.0 is already in cache
[INFO] extracting crate rustmann 0.1.0 into work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/reg/rustmann/0.1.0
[INFO] extracting crate rustmann 0.1.0 into work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/reg/rustmann/0.1.0
[INFO] validating manifest of rustmann-0.1.0 on toolchain master#6ecad338381cc3b8d56e2df22e5971a598eddd6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rustmann-0.1.0 on toolchain try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rustmann-0.1.0
[INFO] finished frobbing rustmann-0.1.0
[INFO] frobbed toml for rustmann-0.1.0 written to work/ex/pr-57501/sources/master#6ecad338381cc3b8d56e2df22e5971a598eddd6c/reg/rustmann/0.1.0/Cargo.toml
[INFO] started frobbing rustmann-0.1.0
[INFO] finished frobbing rustmann-0.1.0
[INFO] frobbed toml for rustmann-0.1.0 written to work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/reg/rustmann/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ecad338381cc3b8d56e2df22e5971a598eddd6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rustmann-0.1.0 against try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f for pr-57501
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57501/worker-5/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57501/sources/try#5f789154f114767b2d0cb9c5b6c592cb3a635e6f/reg/rustmann/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+5f789154f114767b2d0cb9c5b6c592cb3a635e6f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4d05d19af2aeca55de1a824f81a220e491edbd3d5a38d9d9d312f350f22cdd86
[INFO] running `"docker" "start" "-a" "4d05d19af2aeca55de1a824f81a220e491edbd3d5a38d9d9d312f350f22cdd86"`
[INFO] [stderr]    Compiling protoc v2.2.2
[INFO] [stderr]    Compiling protoc-rust v2.2.2
[INFO] [stderr]    Compiling rustmann v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `rustmann v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/rustmann-16fff4936af12b11/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'protoc: Custom { kind: NotFound, error: StringError("failed to spawn `\"protoc\" \"--version\"`: No such file or directory (os error 2)") }', src/libcore/result.rs:999:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5638d0102e53 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h9b79be90ee839699
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x5638d00fec08 - std::sys_common::backtrace::_print::h59103921498d7e9c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:70
[INFO] [stderr]    2:     0x5638d0101b02 - std::panicking::default_hook::{{closure}}::h3acc11bcf734fd38
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:58
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    3:     0x5638d0101874 - std::panicking::default_hook::h7f08a0aadc3e2e56
[INFO] [stderr]                                at src/libstd/panicking.rs:215
[INFO] [stderr]    4:     0x5638d0102160 - std::panicking::rust_panic_with_hook::h5b1126d61a34fa5c
[INFO] [stderr]                                at src/libstd/panicking.rs:478
[INFO] [stderr]    5:     0x5638d0101ce1 - std::panicking::continue_panic_fmt::he972fc6d06b2b73b
[INFO] [stderr]                                at src/libstd/panicking.rs:385
[INFO] [stderr]    6:     0x5638d0101bc5 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:312
[INFO] [stderr]    7:     0x5638d011d0bc - core::panicking::panic_fmt::h167fcbbd2ce9444a
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x5638cfe89eff - core::result::unwrap_failed::had19a8df7f3b31b0
[INFO] [stderr]                                at /rustc/5f789154f114767b2d0cb9c5b6c592cb3a635e6f/src/libcore/macros.rs:16
[INFO] [stderr]    9:     0x5638cfe4bca9 - <core::result::Result<T, E>>::expect::h823caf8ec3a78a09
[INFO] [stderr]                                at /rustc/5f789154f114767b2d0cb9c5b6c592cb3a635e6f/src/libcore/result.rs:825
[INFO] [stderr]   10:     0x5638cfe4aaa2 - build_script_build::main::h76303509b4fc8f1e
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:12
[INFO] [stderr]   11:     0x5638cfe4b62f - std::rt::lang_start::{{closure}}::h7c43ab3edee60df0
[INFO] [stderr]                                at /rustc/5f789154f114767b2d0cb9c5b6c592cb3a635e6f/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x5638d0101bb2 - std::panicking::try::do_call::h8c59be14a0c3dfe8
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:297
[INFO] [stderr]   13:     0x5638d0109c39 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:92
[INFO] [stderr]   14:     0x5638d01026b5 - std::rt::lang_start_internal::he2587b34dae1a1b6
[INFO] [stderr]                                at src/libstd/panicking.rs:276
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   15:     0x5638cfe4b608 - std::rt::lang_start::habfeef4e9aa01b52
[INFO] [stderr]                                at /rustc/5f789154f114767b2d0cb9c5b6c592cb3a635e6f/src/libstd/rt.rs:64
[INFO] [stderr]   16:     0x5638cfe4aeb9 - main
[INFO] [stderr]   17:     0x7f35a25b92e0 - __libc_start_main
[INFO] [stderr]   18:     0x5638cfe4a799 - _start
[INFO] [stderr]   19:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "4d05d19af2aeca55de1a824f81a220e491edbd3d5a38d9d9d312f350f22cdd86"`
[INFO] running `"docker" "rm" "-f" "4d05d19af2aeca55de1a824f81a220e491edbd3d5a38d9d9d312f350f22cdd86"`
[INFO] [stdout] 4d05d19af2aeca55de1a824f81a220e491edbd3d5a38d9d9d312f350f22cdd86