[INFO] updating cached repository chc4/tulpa
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/chc4/tulpa
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/chc4/tulpa" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/chc4/tulpa"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/chc4/tulpa'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chc4/tulpa" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/chc4/tulpa"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/chc4/tulpa'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6b358ad60cd54a9df7535d46bab5c7804df83888
[INFO] sha for GitHub repo chc4/tulpa: 6b358ad60cd54a9df7535d46bab5c7804df83888
[INFO] validating manifest of chc4/tulpa on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chc4/tulpa on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chc4/tulpa
[INFO] finished frobbing chc4/tulpa
[INFO] frobbed toml for chc4/tulpa written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/chc4/tulpa/Cargo.toml
[INFO] started frobbing chc4/tulpa
[INFO] finished frobbing chc4/tulpa
[INFO] frobbed toml for chc4/tulpa written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/chc4/tulpa/Cargo.toml
[INFO] crate chc4/tulpa already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking chc4/tulpa against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-3/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/chc4/tulpa:/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" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] eaab3bbcb38f59758c5aa487252629b09901d406b09c04d99f74d7d4d5944c18
[INFO] running `"docker" "start" "-a" "eaab3bbcb38f59758c5aa487252629b09901d406b09c04d99f74d7d4d5944c18"`
[INFO] [stderr]    Compiling lalrpop-util v0.16.0
[INFO] [stderr]    Compiling vec_map v0.6.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling ena v0.9.3
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]     Checking backtrace-sys v0.1.24
[INFO] [stderr]    Compiling redfa v0.0.2
[INFO] [stderr]    Compiling syn v0.15.9
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling luther-derive v0.1.0
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling string_cache_codegen v0.4.1
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling lalrpop-snap v0.16.0
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking luther v0.1.0
[INFO] [stderr]    Compiling docopt v0.8.3
[INFO] [stderr]    Compiling lalrpop v0.16.0
[INFO] [stderr] error: failed to run custom build command for `lalrpop v0.16.0`
[INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/lalrpop-fa73a230b276a4bc/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] processing file `/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/lalrpop-0.16.0/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:999:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x560644781fe3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h7f08204c27b0467a
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x56064477dcab - std::sys_common::backtrace::_print::hd9dacd169df81122
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x560644780df6 - std::panicking::default_hook::{{closure}}::hb63012d2be6755b2
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x560644780b89 - std::panicking::default_hook::h3efd6a8a707ee89e
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x56064478149f - std::panicking::rust_panic_with_hook::h4f5c00b20be3bea5
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x560644781021 - std::panicking::continue_panic_fmt::h59833cd39bf8ae68
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x560644780f05 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:308
[INFO] [stderr]    7:     0x560644796a9c - core::panicking::panic_fmt::h8d9101a62a895e30
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x560643d09e94 - core::result::unwrap_failed::h047fdc42459473c2
[INFO] [stderr]                                at /rustc/efe2f32a6b8217425f361ec7c206910c611c03ee/src/libcore/macros.rs:18
[INFO] [stderr]    9:     0x560643d09f3f - core::result::Result<T,E>::unwrap::hc46bef9f26bfb7cb
[INFO] [stderr]                                at /rustc/efe2f32a6b8217425f361ec7c206910c611c03ee/src/libcore/result.rs:800
[INFO] [stderr]   10:     0x560643d0a392 - build_script_build::main::h7e8005737098944f
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/lalrpop-0.16.0/build.rs:4
[INFO] [stderr]   11:     0x560643d09d3f - std::rt::lang_start::{{closure}}::h2091648a448c0511
[INFO] [stderr]                                at /rustc/efe2f32a6b8217425f361ec7c206910c611c03ee/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x560644780ea2 - std::panicking::try::do_call::h44a7db9f8ace0499
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   13:     0x560644784379 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   14:     0x5606447819ac - std::rt::lang_start_internal::h5d2b2de4d9a7c9cd
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   15:     0x560643d09d18 - std::rt::lang_start::h76e4799687189ea7
[INFO] [stderr]                                at /rustc/efe2f32a6b8217425f361ec7c206910c611c03ee/src/libstd/rt.rs:64
[INFO] [stderr]   16:     0x560643d0a3c9 - main
[INFO] [stderr]   17:     0x7f88a32cf2e0 - __libc_start_main
[INFO] [stderr]   18:     0x560643d09b99 - _start
[INFO] [stderr]   19:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "eaab3bbcb38f59758c5aa487252629b09901d406b09c04d99f74d7d4d5944c18"`
[INFO] running `"docker" "rm" "-f" "eaab3bbcb38f59758c5aa487252629b09901d406b09c04d99f74d7d4d5944c18"`
[INFO] [stdout] eaab3bbcb38f59758c5aa487252629b09901d406b09c04d99f74d7d4d5944c18