[INFO] cloning repository https://github.com/cadet-robotics/mkprop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cadet-robotics/mkprop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcadet-robotics%2Fmkprop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcadet-robotics%2Fmkprop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4103a3b0a8bbe667f84c458c0f7b439aed234ce4
[INFO] checking cadet-robotics/mkprop against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcadet-robotics%2Fmkprop" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cadet-robotics/mkprop on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cadet-robotics/mkprop
[INFO] finished tweaking git repo https://github.com/cadet-robotics/mkprop
[INFO] tweaked toml for git repo https://github.com/cadet-robotics/mkprop written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/cadet-robotics/mkprop already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f844a086bda7384f9a57832471a7739658e3407ca4ff78ed186395d58974989
[INFO] running `Command { std: "docker" "start" "-a" "7f844a086bda7384f9a57832471a7739658e3407ca4ff78ed186395d58974989", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f844a086bda7384f9a57832471a7739658e3407ca4ff78ed186395d58974989", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f844a086bda7384f9a57832471a7739658e3407ca4ff78ed186395d58974989", kill_on_drop: false }`
[INFO] [stdout] 7f844a086bda7384f9a57832471a7739658e3407ca4ff78ed186395d58974989
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b64aec72363bb9d715fc500188a6c39103fde3904f988802cd28ee31ded74681
[INFO] running `Command { std: "docker" "start" "-a" "b64aec72363bb9d715fc500188a6c39103fde3904f988802cd28ee31ded74681", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling hashbrown v0.8.1
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling lalrpop-util v0.19.0
[INFO] [stderr]    Compiling string_cache v0.8.0
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.19.0
[INFO] [stderr]    Compiling mkprop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `mkprop v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mkprop-fbdb06244d56f9bb/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   processing file `./src/parse/parse_inner.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:7:10
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x555a33e094e0 - std::backtrace_rs::backtrace::libunwind::trace::hfa838fc631229987
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x555a33e094e0 - std::backtrace_rs::backtrace::trace_unsynchronized::h93a23e36ec026219
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x555a33e094e0 - std::sys_common::backtrace::_print_fmt::hba56c7f796a4152f
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x555a33e094e0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h214637f1e26310e1
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x555a33e28f1c - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]      5:     0x555a33e06e25 - std::io::Write::write_fmt::heb07fc0616bbd06d
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/io/mod.rs:1588:15
[INFO] [stderr]      6:     0x555a33e0b45b - std::sys_common::backtrace::_print::h2c2441c37e894fb5
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x555a33e0b45b - std::sys_common::backtrace::print::h4fb679ac439362ea
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x555a33e0b45b - std::panicking::default_hook::{{closure}}::h56bbadec2356e5d2
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x555a33e0af31 - std::panicking::default_hook::hb25822b45f6fdc4e
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x555a33e0bb24 - std::panicking::rust_panic_with_hook::h4da5578e7277d2d4
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x555a33e0b607 - std::panicking::begin_panic_handler::{{closure}}::h003783ddb3cba4e8
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x555a33e099bc - std::sys_common::backtrace::__rust_end_short_backtrace::hd138d2032731ed21
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x555a33e0b569 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x555a335b6751 - core::panicking::panic_fmt::hbe99dddd3092ba3c
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x555a335b6843 - core::result::unwrap_failed::hf79563fef9d11ab8
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x555a335b7139 - core::result::Result<T,E>::unwrap::ha747d14869f58479
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/core/src/result.rs:1037:23
[INFO] [stderr]     17:     0x555a335b7681 - build_script_build::main::h1a1326ab553bbd45
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:4:5
[INFO] [stderr]     18:     0x555a335b750b - core::ops::function::FnOnce::call_once::hbe4665676055bc7f
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x555a335b76de - std::sys_common::backtrace::__rust_begin_short_backtrace::h8c9256c5e24215b1
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x555a335b7461 - std::rt::lang_start::{{closure}}::h2dc0364a3d3c4fa4
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/rt.rs:49:18
[INFO] [stderr]     21:     0x555a33e0c029 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd933294140eb11aa
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x555a33e0c029 - std::panicking::try::do_call::h8342fe3d9218b807
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/panicking.rs:401:40
[INFO] [stderr]     23:     0x555a33e0c029 - std::panicking::try::hcbd73d6d0d58a8f0
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/panicking.rs:365:19
[INFO] [stderr]     24:     0x555a33e0c029 - std::panic::catch_unwind::hde9cf73f810acfcc
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/panic.rs:434:14
[INFO] [stderr]     25:     0x555a33e0c029 - std::rt::lang_start_internal::heb39e7ea6e5d6f6f
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/rt.rs:34:21
[INFO] [stderr]     26:     0x555a335b7440 - std::rt::lang_start::h854310688316a8d4
[INFO] [stderr]                                  at /rustc/8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346/library/std/src/rt.rs:48:5
[INFO] [stderr]     27:     0x555a335b76cc - main
[INFO] [stderr]     28:     0x7f6a965350b3 - __libc_start_main
[INFO] [stderr]     29:     0x555a335b6f4e - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "b64aec72363bb9d715fc500188a6c39103fde3904f988802cd28ee31ded74681", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b64aec72363bb9d715fc500188a6c39103fde3904f988802cd28ee31ded74681", kill_on_drop: false }`
[INFO] [stdout] b64aec72363bb9d715fc500188a6c39103fde3904f988802cd28ee31ded74681