[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#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcadet-robotics%2Fmkprop" "/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/cadet-robotics/mkprop on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", 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-8/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" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded string_cache v0.8.0
[INFO] [stderr]   Downloaded cesu8 v1.1.0
[INFO] [stderr]   Downloaded lalrpop-util v0.19.0
[INFO] [stderr]   Downloaded petgraph v0.5.1
[INFO] [stderr]   Downloaded ena v0.14.0
[INFO] [stderr]   Downloaded diff v0.1.12
[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.4
[INFO] [stderr]   Downloaded lalrpop v0.19.0
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d72a56542b65be0e2a48310d2181f00e0ae6727fb9e45ca6e63b7688df15e61
[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" "4d72a56542b65be0e2a48310d2181f00e0ae6727fb9e45ca6e63b7688df15e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d72a56542b65be0e2a48310d2181f00e0ae6727fb9e45ca6e63b7688df15e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d72a56542b65be0e2a48310d2181f00e0ae6727fb9e45ca6e63b7688df15e61", kill_on_drop: false }`
[INFO] [stdout] 4d72a56542b65be0e2a48310d2181f00e0ae6727fb9e45ca6e63b7688df15e61
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "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] 0c3aee294460866e31decc6608bf0aa51ceacddaead5775f0bb75979eef80bc5
[INFO] running `Command { std: "docker" "start" "-a" "0c3aee294460866e31decc6608bf0aa51ceacddaead5775f0bb75979eef80bc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[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 quote v1.0.7
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]     Checking lalrpop-util v0.19.0
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling string_cache v0.8.0
[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-51cb47afcf75d21e/build-script-build` (exit code: 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:     0x563eb3f7b8c0 - std::backtrace_rs::backtrace::libunwind::trace::ha1eabb142084ea37
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x563eb3f7b8c0 - std::backtrace_rs::backtrace::trace_unsynchronized::hbb8825661d997281
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x563eb3f7b8c0 - std::sys_common::backtrace::_print_fmt::h26d850e2f7183914
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x563eb3f7b8c0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3834b06f68a2b012
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x563eb3f9b0fc - core::fmt::write::h3a043650ba7bf668
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/fmt/mod.rs:1117
[INFO] [stderr]      5:     0x563eb3f79075 - std::io::Write::write_fmt::h9c0c8944a1898139
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/io/mod.rs:1510
[INFO] [stderr]      6:     0x563eb3f7dac0 - std::sys_common::backtrace::_print::h693c0c2cc41d4d10
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x563eb3f7dac0 - std::sys_common::backtrace::print::h213be73e5670b8ea
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x563eb3f7dac0 - std::panicking::default_hook::{{closure}}::h2d49a3361cc4e7ea
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:200
[INFO] [stderr]      9:     0x563eb3f7d80c - std::panicking::default_hook::hd41fbdeba93207ba
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:219
[INFO] [stderr]     10:     0x563eb3f7e123 - std::panicking::rust_panic_with_hook::hcab398664b4bd473
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:569
[INFO] [stderr]     11:     0x563eb3f7dcf9 - std::panicking::begin_panic_handler::{{closure}}::h7512c6f2998ba93d
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:476
[INFO] [stderr]     12:     0x563eb3f7bd2c - std::sys_common::backtrace::__rust_end_short_backtrace::h1a25d7e7e1864d3d
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x563eb3f7dcb9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:475
[INFO] [stderr]     14:     0x563eb3f997b1 - core::panicking::panic_fmt::h019ad16a92ccd092
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/panicking.rs:85
[INFO] [stderr]     15:     0x563eb3f995d3 - core::option::expect_none_failed::h7135ba2fdb185931
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/option.rs:1274
[INFO] [stderr]     16:     0x563eb36d67f3 - core::result::Result<T,E>::unwrap::hefa6e96141064f47
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/result.rs:1005
[INFO] [stderr]     17:     0x563eb36d6583 - build_script_build::main::hfc1c56ed51f15d56
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:4
[INFO] [stderr]     18:     0x563eb36d66db - core::ops::function::FnOnce::call_once::h4a1c27e33b8a170e
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/ops/function.rs:233
[INFO] [stderr]     19:     0x563eb36d637e - std::sys_common::backtrace::__rust_begin_short_backtrace::hb3b67d0f9ec1a9cf
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     20:     0x563eb36d6691 - std::rt::lang_start::{{closure}}::h7f5b0aca0f9ddd42
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/rt.rs:66
[INFO] [stderr]     21:     0x563eb3f7e532 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hde9814ae740a85dc
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/ops/function.rs:265
[INFO] [stderr]     22:     0x563eb3f7e532 - std::panicking::try::do_call::h3026bab8cd7540d7
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:373
[INFO] [stderr]     23:     0x563eb3f7e532 - std::panicking::try::h852bb5e5a66f7f84
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:337
[INFO] [stderr]     24:     0x563eb3f7e532 - std::panic::catch_unwind::hfeb0f3dddf7c6a72
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panic.rs:394
[INFO] [stderr]     25:     0x563eb3f7e532 - std::rt::lang_start_internal::h32f0ac6e87476559
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/rt.rs:51
[INFO] [stderr]     26:     0x563eb36d6667 - std::rt::lang_start::h36180323bee5a15b
[INFO] [stderr]                                  at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/rt.rs:65
[INFO] [stderr]     27:     0x563eb36d65da - main
[INFO] [stderr]     28:     0x7f82d55200b3 - __libc_start_main
[INFO] [stderr]     29:     0x563eb36d60ce - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "0c3aee294460866e31decc6608bf0aa51ceacddaead5775f0bb75979eef80bc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c3aee294460866e31decc6608bf0aa51ceacddaead5775f0bb75979eef80bc5", kill_on_drop: false }`
[INFO] [stdout] 0c3aee294460866e31decc6608bf0aa51ceacddaead5775f0bb75979eef80bc5