[INFO] crate rustmann 0.1.0 is already in cache
[INFO] extracting crate rustmann 0.1.0 into work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/reg/rustmann/0.1.0
[INFO] extracting crate rustmann 0.1.0 into work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/reg/rustmann/0.1.0
[INFO] validating manifest of rustmann-0.1.0 on toolchain master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rustmann-0.1.0 on toolchain try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-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-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/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-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/reg/rustmann/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rustmann-0.1.0 against try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0 for pr-57321
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57321/worker-0/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/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" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6ed13de2599e1882440bd5bbb08fb81a6bae72bdd0d5e10b06b4d83a2ab749a3
[INFO] running `"docker" "start" "-a" "6ed13de2599e1882440bd5bbb08fb81a6bae72bdd0d5e10b06b4d83a2ab749a3"`
[INFO] [stderr]    Compiling protobuf v2.2.2
[INFO] [stderr]    Compiling protoc v2.2.2
[INFO] [stderr]    Compiling protobuf-codegen 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-c2dfa00cecbc3bd4/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:     0x56432dd697e3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h3599a486fa1c8ba4
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x56432dd65598 - std::sys_common::backtrace::_print::h167ab44d087fe090
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:70
[INFO] [stderr]    2:     0x56432dd68492 - std::panicking::default_hook::{{closure}}::hedf548ec6e507924
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:58
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    3:     0x56432dd68204 - std::panicking::default_hook::hc249968c8b851246
[INFO] [stderr]                                at src/libstd/panicking.rs:215
[INFO] [stderr]    4:     0x56432dd68af0 - std::panicking::rust_panic_with_hook::hc4848d5b5f76f828
[INFO] [stderr]                                at src/libstd/panicking.rs:478
[INFO] [stderr]    5:     0x56432dd68671 - std::panicking::continue_panic_fmt::haeba740a146ce41e
[INFO] [stderr]                                at src/libstd/panicking.rs:385
[INFO] [stderr]    6:     0x56432dd68555 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:312
[INFO] [stderr]    7:     0x56432dd83a4c - core::panicking::panic_fmt::h48988d214359e259
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x56432dd56270 - core::result::unwrap_failed::h08f66c1321671e9a
[INFO] [stderr]                                at /rustc/b9139d2caca1db46014a9c302d5c47cfae0d8ae0/src/libcore/macros.rs:16
[INFO] [stderr]    9:     0x56432dab2a29 - <core::result::Result<T, E>>::expect::h63ab6d5f8a33e91e
[INFO] [stderr]                                at /rustc/b9139d2caca1db46014a9c302d5c47cfae0d8ae0/src/libcore/result.rs:825
[INFO] [stderr]   10:     0x56432dab1822 - build_script_build::main::hbc7818fed8f37d99
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:12
[INFO] [stderr]   11:     0x56432dab23af - std::rt::lang_start::{{closure}}::h334d1a24f36f71d8
[INFO] [stderr]                                at /rustc/b9139d2caca1db46014a9c302d5c47cfae0d8ae0/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x56432dd68542 - std::panicking::try::do_call::h5289eb55de7b454b
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:297
[INFO] [stderr]   13:     0x56432dd705c9 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:92
[INFO] [stderr]   14:     0x56432dd69045 - std::rt::lang_start_internal::h9e303488906e5972
[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:     0x56432dab2388 - std::rt::lang_start::h12e08d2f54bae439
[INFO] [stderr]                                at /rustc/b9139d2caca1db46014a9c302d5c47cfae0d8ae0/src/libstd/rt.rs:64
[INFO] [stderr]   16:     0x56432dab1c39 - main
[INFO] [stderr]   17:     0x7f3c2bb222e0 - __libc_start_main
[INFO] [stderr]   18:     0x56432dab1519 - _start
[INFO] [stderr]   19:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "6ed13de2599e1882440bd5bbb08fb81a6bae72bdd0d5e10b06b4d83a2ab749a3"`
[INFO] running `"docker" "rm" "-f" "6ed13de2599e1882440bd5bbb08fb81a6bae72bdd0d5e10b06b4d83a2ab749a3"`
[INFO] [stdout] 6ed13de2599e1882440bd5bbb08fb81a6bae72bdd0d5e10b06b4d83a2ab749a3