[INFO] crate clacks 0.0.2 is already in cache
[INFO] extracting crate clacks 0.0.2 into work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/clacks/0.0.2
[INFO] extracting crate clacks 0.0.2 into work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/clacks/0.0.2
[INFO] validating manifest of clacks-0.0.2 on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of clacks-0.0.2 on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing clacks-0.0.2
[INFO] finished frobbing clacks-0.0.2
[INFO] frobbed toml for clacks-0.0.2 written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/reg/clacks/0.0.2/Cargo.toml
[INFO] started frobbing clacks-0.0.2
[INFO] finished frobbing clacks-0.0.2
[INFO] frobbed toml for clacks-0.0.2 written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/clacks/0.0.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking clacks-0.0.2 against try#75eff020d0923c035c2fe220db4a0465cd847048 for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-2/try#75eff020d0923c035c2fe220db4a0465cd847048:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/reg/clacks/0.0.2:/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" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 432bcda3541395cb94523d199ae2b3061edaeead554a8f081aa8a8b067851482
[INFO] running `"docker" "start" "-a" "432bcda3541395cb94523d199ae2b3061edaeead554a8f081aa8a8b067851482"`
[INFO] [stderr]    Compiling pom v1.1.0
[INFO] [stderr]     Checking extfmt v0.1.1
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling clacks_tl_codegen v0.0.2
[INFO] [stderr]    Compiling clacks v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `clacks v0.0.2 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/clacks-3e705e79f3cb0778/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] cargo:rerun-if-changed=tl/000-scheme.tl
[INFO] [stderr] cargo:rerun-if-changed=tl/001-manual.tl
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:1084:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x559991c6e9db - backtrace::backtrace::libunwind::trace::h223ecf9e25ea61ed
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x559991c6e9db - backtrace::backtrace::trace_unsynchronized::h19c402a6233e597e
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x559991c6e9db - std::sys_common::backtrace::_print::h14947081e8315ba5
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x559991c6e9db - std::sys_common::backtrace::print::h87cad3f0b50b59c5
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x559991c6e9db - std::panicking::default_hook::{{closure}}::h497a714df189bd9d
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x559991c6e6b6 - std::panicking::default_hook::h8dc4a117b759bd96
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x559991c6f09d - std::panicking::rust_panic_with_hook::h4cbf0f096b75f262
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x559991c6ec22 - std::panicking::continue_panic_fmt::hbfbfc57925685348
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x559991c6eb06 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]    9:     0x559991c845ed - core::panicking::panic_fmt::h011c5c8794bf0cc5
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x559991c846e7 - core::result::unwrap_failed::hcd7c37294cdf213e
[INFO] [stderr]                                at src/libcore/result.rs:1084
[INFO] [stderr]   11:     0x559991b430af - core::result::Result<T,E>::unwrap::hf7754cc3af7a41b4
[INFO] [stderr]                                at /rustc/75eff020d0923c035c2fe220db4a0465cd847048/src/libcore/result.rs:852
[INFO] [stderr]   12:     0x559991b42458 - build_script_build::main::h768d864b5c08d457
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:56
[INFO] [stderr]   13:     0x559991b3eed0 - std::rt::lang_start::{{closure}}::he468d15a1773b52d
[INFO] [stderr]                                at /rustc/75eff020d0923c035c2fe220db4a0465cd847048/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x559991c6eaf3 - std::rt::lang_start_internal::{{closure}}::hb2a68345cd4d50f8
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x559991c6eaf3 - std::panicking::try::do_call::ha4d88255f4a68d08
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   16:     0x559991c70fca - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   17:     0x559991c6f5ad - std::panicking::try::h6debac9988c5415d
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   18:     0x559991c6f5ad - std::panic::catch_unwind::h4659dbf6316a9c8d
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x559991c6f5ad - std::rt::lang_start_internal::hdadab8536edf34fe
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x559991b3eea9 - std::rt::lang_start::h6f7eb227c1c91aa6
[INFO] [stderr]                                at /rustc/75eff020d0923c035c2fe220db4a0465cd847048/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x559991b4248a - main
[INFO] [stderr]   22:     0x7f468863a2e1 - __libc_start_main
[INFO] [stderr]   23:     0x559991b39e7a - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "432bcda3541395cb94523d199ae2b3061edaeead554a8f081aa8a8b067851482"`
[INFO] running `"docker" "rm" "-f" "432bcda3541395cb94523d199ae2b3061edaeead554a8f081aa8a8b067851482"`
[INFO] [stdout] 432bcda3541395cb94523d199ae2b3061edaeead554a8f081aa8a8b067851482