[INFO] cloning repository https://github.com/matthewsanetra/gravitas
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matthewsanetra/gravitas" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewsanetra%2Fgravitas", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewsanetra%2Fgravitas'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 095eb507bd4acefb9b8d3441c242d8c9620df5a3
[INFO] checking matthewsanetra/gravitas against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthewsanetra%2Fgravitas" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matthewsanetra/gravitas on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matthewsanetra/gravitas
[INFO] finished tweaking git repo https://github.com/matthewsanetra/gravitas
[INFO] tweaked toml for git repo https://github.com/matthewsanetra/gravitas written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/matthewsanetra/gravitas already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded diff v0.1.12
[INFO] [stderr]   Downloaded bit-vec v0.6.2
[INFO] [stderr]   Downloaded bit-set v0.5.2
[INFO] [stderr]   Downloaded lalrpop-util v0.19.1
[INFO] [stderr]   Downloaded petgraph v0.5.1
[INFO] [stderr]   Downloaded ena v0.14.0
[INFO] [stderr]   Downloaded fixedbitset v0.2.0
[INFO] [stderr]   Downloaded lalrpop v0.19.1
[INFO] [stderr]   Downloaded string_cache v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b52c55fcd08722e5a104f2ed473fc45b955939989060b345a593dbdad2c1e99
[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" "3b52c55fcd08722e5a104f2ed473fc45b955939989060b345a593dbdad2c1e99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b52c55fcd08722e5a104f2ed473fc45b955939989060b345a593dbdad2c1e99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b52c55fcd08722e5a104f2ed473fc45b955939989060b345a593dbdad2c1e99", kill_on_drop: false }`
[INFO] [stdout] 3b52c55fcd08722e5a104f2ed473fc45b955939989060b345a593dbdad2c1e99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83dde5da71063bca66e435d8c8d8d011af7fce578a13ed32023f4237cd80b588
[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" "83dde5da71063bca66e435d8c8d8d011af7fce578a13ed32023f4237cd80b588", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking memchr v2.3.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking lalrpop-util v0.19.1
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling string_cache v0.8.0
[INFO] [stderr]    Compiling lalrpop v0.19.1
[INFO] [stderr]    Compiling gravitas v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `gravitas v0.0.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/gravitas-411bc8209e9c9cbe/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   processing file `./src/parser/language.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" }', build.rs:5:10
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55a7c275a090 - std::backtrace_rs::backtrace::libunwind::trace::h448c56741b6011d3
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/../../backtrace/src/backtrace/libunwind.rs:100:5
[INFO] [stderr]      1:     0x55a7c275a090 - std::backtrace_rs::backtrace::trace_unsynchronized::h881b9d30a8a89a0c
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55a7c275a090 - std::sys_common::backtrace::_print_fmt::h720a2f61f75b9f58
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55a7c275a090 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h8d62bbfda6d5c836
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55a7c27793dc - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/core/src/fmt/mod.rs:1076:17
[INFO] [stderr]      5:     0x55a7c2756f62 - std::io::Write::write_fmt::h16a9fe7680ac245c
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/io/mod.rs:1516:15
[INFO] [stderr]      6:     0x55a7c275c465 - std::sys_common::backtrace::_print::h9ba51a6db618de7d
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55a7c275c465 - std::sys_common::backtrace::print::h5f20e41c85e91716
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55a7c275c465 - std::panicking::default_hook::{{closure}}::h8d48653392f3b04c
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55a7c275c108 - std::panicking::default_hook::hb3948d1f74b6ff4c
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/panicking.rs:227:9
[INFO] [stderr]     10:     0x55a7c275cc01 - std::panicking::rust_panic_with_hook::h55d23fef0ad751bc
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/panicking.rs:593:17
[INFO] [stderr]     11:     0x55a7c275c747 - std::panicking::begin_panic_handler::{{closure}}::h56ae74c6dea6e141
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/panicking.rs:499:13
[INFO] [stderr]     12:     0x55a7c275a52c - std::sys_common::backtrace::__rust_end_short_backtrace::h3c4721f56689fae4
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55a7c275c6a9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/panicking.rs:495:5
[INFO] [stderr]     14:     0x55a7c27779d1 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x55a7c27777f3 - core::option::expect_none_failed::he492a18657d97593
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/core/src/option.rs:1268:5
[INFO] [stderr]     16:     0x55a7c1edc7f3 - core::result::Result<T,E>::unwrap::h4dd206230dfeba1c
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/core/src/result.rs:973:23
[INFO] [stderr]     17:     0x55a7c1edc5e5 - build_script_build::main::h3ec4a30d65f5ce65
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:2:5
[INFO] [stderr]     18:     0x55a7c1edc29b - core::ops::function::FnOnce::call_once::h452199e7a8c398ff
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x55a7c1edc72e - std::sys_common::backtrace::__rust_begin_short_backtrace::hdcde7674eed6f973
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x55a7c1edc701 - std::rt::lang_start::{{closure}}::h6fb2dc3d50f1370a
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/rt.rs:66:18
[INFO] [stderr]     21:     0x55a7c275d027 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h3f3ba5d1e0ce8d49
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x55a7c275d027 - std::panicking::try::do_call::hd7a374fc87b951e7
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/panicking.rs:381:40
[INFO] [stderr]     23:     0x55a7c275d027 - std::panicking::try::hcc68eba0f7d51b82
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/panicking.rs:345:19
[INFO] [stderr]     24:     0x55a7c275d027 - std::panic::catch_unwind::h2e8cfcfcf4f9eb6d
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/panic.rs:382:14
[INFO] [stderr]     25:     0x55a7c275d027 - std::rt::lang_start_internal::h8ff82302dd620b52
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/rt.rs:51:25
[INFO] [stderr]     26:     0x55a7c1edc6d7 - std::rt::lang_start::h8c498218e8af1c7d
[INFO] [stderr]                                  at /rustc/b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8/library/std/src/rt.rs:65:5
[INFO] [stderr]     27:     0x55a7c1edc65a - main
[INFO] [stderr]     28:     0x7f7a0d03a0b3 - __libc_start_main
[INFO] [stderr]     29:     0x55a7c1edc0ce - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "83dde5da71063bca66e435d8c8d8d011af7fce578a13ed32023f4237cd80b588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83dde5da71063bca66e435d8c8d8d011af7fce578a13ed32023f4237cd80b588", kill_on_drop: false }`
[INFO] [stdout] 83dde5da71063bca66e435d8c8d8d011af7fce578a13ed32023f4237cd80b588