[INFO] updating cached repository Emoun/unsafe-lang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Emoun/unsafe-lang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Emoun/unsafe-lang" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/Emoun/unsafe-lang"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/Emoun/unsafe-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Emoun/unsafe-lang" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/Emoun/unsafe-lang"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/Emoun/unsafe-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a207b1023bc8f373269d77ff471edef202877714
[INFO] sha for GitHub repo Emoun/unsafe-lang: a207b1023bc8f373269d77ff471edef202877714
[INFO] validating manifest of Emoun/unsafe-lang 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 Emoun/unsafe-lang 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 Emoun/unsafe-lang
[INFO] finished frobbing Emoun/unsafe-lang
[INFO] frobbed toml for Emoun/unsafe-lang written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/Emoun/unsafe-lang/Cargo.toml
[INFO] started frobbing Emoun/unsafe-lang
[INFO] finished frobbing Emoun/unsafe-lang
[INFO] frobbed toml for Emoun/unsafe-lang written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/Emoun/unsafe-lang/Cargo.toml
[INFO] crate Emoun/unsafe-lang already has a lockfile, it will not be regenerated
[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 Emoun/unsafe-lang against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-3/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/Emoun/unsafe-lang:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 01629c8b93205bcf98f7fee363ad84947c882af2e9add00cc32aaa16f55f9518
[INFO] running `"docker" "start" "-a" "01629c8b93205bcf98f7fee363ad84947c882af2e9add00cc32aaa16f55f9518"`
[INFO] [stderr]    Compiling fixedbitset v0.1.7
[INFO] [stderr]    Compiling diff v0.1.10
[INFO] [stderr]     Checking lalrpop-util v0.13.1
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling atty v0.1.2
[INFO] [stderr]    Compiling petgraph v0.4.5
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling docopt v0.7.0
[INFO] [stderr]    Compiling lalrpop-snap v0.13.1
[INFO] [stderr]    Compiling lalrpop v0.13.1
[INFO] [stderr] error: failed to run custom build command for `lalrpop v0.13.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/lalrpop-f659e92fbc197e46/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] processing file `/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/lalrpop-0.13.1/src/parser/lrgrammar.lalrpop`
[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:     0x55ff58b6a42b - backtrace::backtrace::libunwind::trace::h99e6362fdb92a8eb
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55ff58b6a42b - backtrace::backtrace::trace_unsynchronized::hb03857eb223d1e1b
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55ff58b6a42b - std::sys_common::backtrace::_print::hc504093b15dd6a49
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55ff58b6a42b - std::sys_common::backtrace::print::h74592d8df46164e6
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55ff58b6a42b - std::panicking::default_hook::{{closure}}::h148953d9747d04f4
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x55ff58b6a106 - std::panicking::default_hook::h72a253311e200c7c
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x55ff58b6ab3d - std::panicking::rust_panic_with_hook::h625fcf59e672b6a0
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x55ff58b6a6c2 - std::panicking::continue_panic_fmt::hb865580971245aec
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x55ff58b6a5a6 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]    9:     0x55ff58b83c8d - core::panicking::panic_fmt::h88ab02319bb01bbf
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x55ff58b83d87 - core::result::unwrap_failed::hcd16c30e39593715
[INFO] [stderr]                                at src/libcore/result.rs:1084
[INFO] [stderr]   11:     0x55ff58247ad8 - core::result::Result<T,E>::unwrap::h5623e7e94c0f99ba
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libcore/result.rs:852
[INFO] [stderr]   12:     0x55ff58247973 - build_script_build::main::h331ca3621a0df517
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/lalrpop-0.13.1/build.rs:4
[INFO] [stderr]   13:     0x55ff58247a20 - std::rt::lang_start::{{closure}}::hc8f92720a97ccaeb
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x55ff58b6a543 - std::rt::lang_start_internal::{{closure}}::h5b4ccd53e4167b89
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x55ff58b6a543 - std::panicking::try::do_call::h85f9b79f07affa28
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   16:     0x55ff58b6d0da - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   17:     0x55ff58b6b04d - std::panicking::try::h0463127fe79abe73
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   18:     0x55ff58b6b04d - std::panic::catch_unwind::h846bfd7d9d99e56b
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x55ff58b6b04d - std::rt::lang_start_internal::h0a72d627fb2e90ec
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x55ff582479f9 - std::rt::lang_start::h8ba627d5b0aaaf58
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x55ff582479aa - main
[INFO] [stderr]   22:     0x7fd3d7fd92e1 - __libc_start_main
[INFO] [stderr]   23:     0x55ff5824750a - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "01629c8b93205bcf98f7fee363ad84947c882af2e9add00cc32aaa16f55f9518"`
[INFO] running `"docker" "rm" "-f" "01629c8b93205bcf98f7fee363ad84947c882af2e9add00cc32aaa16f55f9518"`
[INFO] [stdout] 01629c8b93205bcf98f7fee363ad84947c882af2e9add00cc32aaa16f55f9518