[INFO] cloning repository https://github.com/chc4/tulpa
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chc4/tulpa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchc4%2Ftulpa", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchc4%2Ftulpa'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b358ad60cd54a9df7535d46bab5c7804df83888
[INFO] checking chc4/tulpa against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchc4%2Ftulpa" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chc4/tulpa on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/chc4/tulpa
[INFO] finished tweaking git repo https://github.com/chc4/tulpa
[INFO] tweaked toml for git repo https://github.com/chc4/tulpa written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/chc4/tulpa already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d33bfcb5d783d0866fe73fbca1cdb6d70dcc065cda1e434303180a4ac11fd7c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2d33bfcb5d783d0866fe73fbca1cdb6d70dcc065cda1e434303180a4ac11fd7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d33bfcb5d783d0866fe73fbca1cdb6d70dcc065cda1e434303180a4ac11fd7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d33bfcb5d783d0866fe73fbca1cdb6d70dcc065cda1e434303180a4ac11fd7c", kill_on_drop: false }`
[INFO] [stdout] 2d33bfcb5d783d0866fe73fbca1cdb6d70dcc065cda1e434303180a4ac11fd7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0ca4a9dbe85aca2261f5038e2b84c86679956b535da7ff07f0b9ea41b23cfec9
[INFO] running `Command { std: "docker" "start" "-a" "0ca4a9dbe85aca2261f5038e2b84c86679956b535da7ff07f0b9ea41b23cfec9", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling lalrpop-util v0.16.0
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling vec_map v0.6.0
[INFO] [stderr]     Checking encode_unicode v0.3.5
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling bit-set v0.5.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling ena v0.9.3
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]     Checking backtrace-sys v0.1.24
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling redfa v0.0.2
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling syn v0.15.9
[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 regex v1.0.5
[INFO] [stderr]    Compiling luther-derive v0.1.0
[INFO] [stderr]    Compiling lalrpop-snap v0.16.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.79
[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] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/lalrpop-c4551a5d30687ce4/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   processing file `/opt/rustwide/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" }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lalrpop-0.16.0/build.rs:4:34
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5647657cc510 - std::backtrace_rs::backtrace::libunwind::trace::h4dee703919bfd40a
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x5647657cc510 - std::backtrace_rs::backtrace::trace_unsynchronized::h457e839f1a563e20
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5647657cc510 - std::sys_common::backtrace::_print_fmt::h86a55fb30f8393c8
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5647657cc510 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7b3d6cac46d277e1
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5647657e8b1f - core::fmt::write::h127419eb46f2ecc9
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/fmt/mod.rs:1092:17
[INFO] [stderr]      5:     0x5647657c9d82 - std::io::Write::write_fmt::h6010cfbb4726588b
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/io/mod.rs:1572:15
[INFO] [stderr]      6:     0x5647657ce395 - std::sys_common::backtrace::_print::h79b4f9652330cc9d
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5647657ce395 - std::sys_common::backtrace::print::h330bb326a76af8cf
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5647657ce395 - std::panicking::default_hook::{{closure}}::heb6a42a7d50a472e
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x5647657cde43 - std::panicking::default_hook::h17e521ba6d68d6e1
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x5647657ce99d - std::panicking::rust_panic_with_hook::h70db735e3a6e70cb
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x5647657ce537 - std::panicking::begin_panic_handler::{{closure}}::h777c71c8e5a7e25c
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x5647657cc9cc - std::sys_common::backtrace::__rust_end_short_backtrace::h3e9bf30168899554
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x5647657ce499 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x564764f096c1 - core::panicking::panic_fmt::h5322a082d19786c3
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x564764f095b3 - core::option::expect_none_failed::h354eaa93a51d71b8
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/option.rs:1329:5
[INFO] [stderr]     16:     0x564764f09ef0 - core::result::Result<T,E>::unwrap::h6804285e853793b0
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/result.rs:1037:23
[INFO] [stderr]     17:     0x564764f0a29a - build_script_build::main::h8d6b08ebbfa77c54
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lalrpop-0.16.0/build.rs:4:5
[INFO] [stderr]     18:     0x564764f0a33b - core::ops::function::FnOnce::call_once::h331a70ae48b4bb72
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x564764f0a3fe - std::sys_common::backtrace::__rust_begin_short_backtrace::he08ab2a0ae557fda
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x564764f09f81 - std::rt::lang_start::{{closure}}::h71e0de7dd7c2ef82
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/rt.rs:66:18
[INFO] [stderr]     21:     0x5647657ced9a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hbcc915e668c7ca11
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x5647657ced9a - std::panicking::try::do_call::h6b0f430d48122ddf
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:379:40
[INFO] [stderr]     23:     0x5647657ced9a - std::panicking::try::h6ba420e2e21b5afa
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:343:19
[INFO] [stderr]     24:     0x5647657ced9a - std::panic::catch_unwind::h8366719d1f615eee
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panic.rs:431:14
[INFO] [stderr]     25:     0x5647657ced9a - std::rt::lang_start_internal::h965c28c9ce06ee73
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/rt.rs:51:25
[INFO] [stderr]     26:     0x564764f09f60 - std::rt::lang_start::h776cac43f1b53d14
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/rt.rs:65:5
[INFO] [stderr]     27:     0x564764f0a2bc - main
[INFO] [stderr]     28:     0x7f6853fd30b3 - __libc_start_main
[INFO] [stderr]     29:     0x564764f09dce - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "0ca4a9dbe85aca2261f5038e2b84c86679956b535da7ff07f0b9ea41b23cfec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ca4a9dbe85aca2261f5038e2b84c86679956b535da7ff07f0b9ea41b23cfec9", kill_on_drop: false }`
[INFO] [stdout] 0ca4a9dbe85aca2261f5038e2b84c86679956b535da7ff07f0b9ea41b23cfec9