[INFO] cloning repository https://github.com/Sreyas-Sreelal/writing-compilers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sreyas-Sreelal/writing-compilers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSreyas-Sreelal%2Fwriting-compilers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSreyas-Sreelal%2Fwriting-compilers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43bcc8b572573e166f3ef49d7b0b6a7fe85eaa77
[INFO] checking Sreyas-Sreelal/writing-compilers against try#afeffcd090fe6cee35c99f8b5539d74aa443fe34 for pr-140956
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSreyas-Sreelal%2Fwriting-compilers" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Sreyas-Sreelal/writing-compilers
[INFO] finished tweaking git repo https://github.com/Sreyas-Sreelal/writing-compilers
[INFO] tweaked toml for git repo https://github.com/Sreyas-Sreelal/writing-compilers written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Sreyas-Sreelal/writing-compilers on toolchain afeffcd090fe6cee35c99f8b5539d74aa443fe34
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Sreyas-Sreelal/writing-compilers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "fetch" "--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
[ERROR] error running command: no output for 300 seconds
[INFO] checking Sreyas-Sreelal/writing-compilers against try#afeffcd090fe6cee35c99f8b5539d74aa443fe34 for pr-140956
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSreyas-Sreelal%2Fwriting-compilers" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Sreyas-Sreelal/writing-compilers
[INFO] finished tweaking git repo https://github.com/Sreyas-Sreelal/writing-compilers
[INFO] tweaked toml for git repo https://github.com/Sreyas-Sreelal/writing-compilers written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Sreyas-Sreelal/writing-compilers on toolchain afeffcd090fe6cee35c99f8b5539d74aa443fe34
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Sreyas-Sreelal/writing-compilers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "fetch" "--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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00d3bc59a8f14954abad243bb7f3dfdc3deff636745dbc4c238ba2d9c3370fd4
[INFO] running `Command { std: "docker" "start" "-a" "00d3bc59a8f14954abad243bb7f3dfdc3deff636745dbc4c238ba2d9c3370fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00d3bc59a8f14954abad243bb7f3dfdc3deff636745dbc4c238ba2d9c3370fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00d3bc59a8f14954abad243bb7f3dfdc3deff636745dbc4c238ba2d9c3370fd4", kill_on_drop: false }`
[INFO] [stdout] 00d3bc59a8f14954abad243bb7f3dfdc3deff636745dbc4c238ba2d9c3370fd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8bb71cad7a12c2c4c5599a51c4fb25afea2a6acb869126d33fd9d53933191ef
[INFO] running `Command { std: "docker" "start" "-a" "c8bb71cad7a12c2c4c5599a51c4fb25afea2a6acb869126d33fd9d53933191ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]     Checking lalrpop-util v0.19.8
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling petgraph v0.6.2
[INFO] [stderr]    Compiling string_cache v0.8.4
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling regex v1.7.0
[INFO] [stderr]    Compiling lalrpop v0.19.8
[INFO] [stderr]    Compiling lalpoptest v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `lalpoptest v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/lalpoptest-6dcd99ca4f74bed6/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   processing file `./src/parser/grammar.lalrpop`
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' panicked at build.rs:5:10:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x61eb8cd13fb2 - std::backtrace_rs::backtrace::libunwind::trace::he4d577cd759ff24f
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x61eb8cd13fb2 - std::backtrace_rs::backtrace::trace_unsynchronized::hec36c532713f48b9
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x61eb8cd13fb2 - std::sys::backtrace::_print_fmt::haf39a78cc1ef6a3e
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x61eb8cd13fb2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h24734dd60b5733a4
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x61eb8cd351a3 - core::fmt::rt::Argument::fmt::hc266dd9608f74ab0
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x61eb8cd351a3 - core::fmt::write::h81255f7a45aaf6d5
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/core/src/fmt/mod.rs:1446:25
[INFO] [stderr]      6:     0x61eb8cd11193 - std::io::default_write_fmt::h9692bec303e500ce
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x61eb8cd11193 - std::io::Write::write_fmt::h313a1de9fb5660a2
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/io/mod.rs:1914:13
[INFO] [stderr]      8:     0x61eb8cd13e02 - std::sys::backtrace::BacktraceLock::print::hb052e07088cf3248
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x61eb8cd15132 - std::panicking::default_hook::{{closure}}::h1becccf7d7f9a93d
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/panicking.rs:300:22
[INFO] [stderr]     10:     0x61eb8cd14f35 - std::panicking::default_hook::h17d0db184f41cd2e
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/panicking.rs:327:9
[INFO] [stderr]     11:     0x61eb8cd15b12 - std::panicking::rust_panic_with_hook::h877755bf7f0f7e4d
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/panicking.rs:833:13
[INFO] [stderr]     12:     0x61eb8cd1589a - std::panicking::begin_panic_handler::{{closure}}::hc4c2795248d26426
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/panicking.rs:706:13
[INFO] [stderr]     13:     0x61eb8cd144a9 - std::sys::backtrace::__rust_end_short_backtrace::h635a5e1a3c4befea
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     14:     0x61eb8cd1552d - __rustc[c3d9e160f0aa352b]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/panicking.rs:697:5
[INFO] [stderr]     15:     0x61eb8cd33900 - core::panicking::panic_fmt::h90eea92dbdac1196
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x61eb8cd33d66 - core::result::unwrap_failed::hd523af1ae41d1a62
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/core/src/result.rs:1732:5
[INFO] [stderr]     17:     0x61eb8c791e9e - build_script_build::main::h6b09f7502f6e4078
[INFO] [stderr]     18:     0x61eb8c791bb3 - core::ops::function::FnOnce::call_once::hc32cb4e5bc6440d2
[INFO] [stderr]     19:     0x61eb8c791b56 - std::sys::backtrace::__rust_begin_short_backtrace::he568d3561b578b2f
[INFO] [stderr]     20:     0x61eb8c791b39 - std::rt::lang_start::{{closure}}::hc227637df9ec2542
[INFO] [stderr]     21:     0x61eb8cd0b544 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h6554d0c5d90fc26c
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     22:     0x61eb8cd0b544 - std::panicking::try::do_call::h6038491d67666856
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/panicking.rs:589:40
[INFO] [stderr]     23:     0x61eb8cd0b544 - std::panicking::try::h669092893a9543b0
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/panicking.rs:552:19
[INFO] [stderr]     24:     0x61eb8cd0b544 - std::panic::catch_unwind::hf5dfe6efb9592368
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x61eb8cd0b544 - std::rt::lang_start_internal::{{closure}}::h20feba5efe91b746
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x61eb8cd0b544 - std::panicking::try::do_call::h62b9b62842ffdc80
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/panicking.rs:589:40
[INFO] [stderr]     27:     0x61eb8cd0b544 - std::panicking::try::h25d9b989c8b0c83a
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/panicking.rs:552:19
[INFO] [stderr]     28:     0x61eb8cd0b544 - std::panic::catch_unwind::h7b325a58bafcf891
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x61eb8cd0b544 - std::rt::lang_start_internal::he51d31b9a4da0e5a
[INFO] [stderr]                                  at /rustc/afeffcd090fe6cee35c99f8b5539d74aa443fe34/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x61eb8c791b21 - std::rt::lang_start::h949d0315fe2f0845
[INFO] [stderr]     31:     0x61eb8c791f25 - main
[INFO] [stderr]     32:     0x7bb70ee781ca - <unknown>
[INFO] [stderr]     33:     0x7bb70ee7828b - __libc_start_main
[INFO] [stderr]     34:     0x61eb8c791a35 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "c8bb71cad7a12c2c4c5599a51c4fb25afea2a6acb869126d33fd9d53933191ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8bb71cad7a12c2c4c5599a51c4fb25afea2a6acb869126d33fd9d53933191ef", kill_on_drop: false }`
[INFO] [stdout] c8bb71cad7a12c2c4c5599a51c4fb25afea2a6acb869126d33fd9d53933191ef