[INFO] cloning repository https://github.com/danielpclark/faster_path
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danielpclark/faster_path" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielpclark%2Ffaster_path", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielpclark%2Ffaster_path'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 726c7f75de64ec11b75259dff50248b1fc28ef22
[INFO] checking danielpclark/faster_path against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielpclark%2Ffaster_path" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danielpclark/faster_path on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/danielpclark/faster_path
[INFO] finished tweaking git repo https://github.com/danielpclark/faster_path
[INFO] tweaked toml for git repo https://github.com/danielpclark/faster_path written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/danielpclark/faster_path already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rutie v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] daffdc2dc302a23aef26d5313f0d9a10087ced3ce9583ac1e5f6e8a00f5a5ef3
[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" "daffdc2dc302a23aef26d5313f0d9a10087ced3ce9583ac1e5f6e8a00f5a5ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daffdc2dc302a23aef26d5313f0d9a10087ced3ce9583ac1e5f6e8a00f5a5ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daffdc2dc302a23aef26d5313f0d9a10087ced3ce9583ac1e5f6e8a00f5a5ef3", kill_on_drop: false }`
[INFO] [stdout] daffdc2dc302a23aef26d5313f0d9a10087ced3ce9583ac1e5f6e8a00f5a5ef3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c205c6a1c8e15079249937174e4fa357bc037b55bde9c9ddb457f079b514eac
[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" "4c205c6a1c8e15079249937174e4fa357bc037b55bde9c9ddb457f079b514eac", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rutie v0.6.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr] error: failed to run custom build command for `rutie v0.6.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rutie-ffb2693bd779346d/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rustc-link-search=/usr/lib
[INFO] [stderr]   cargo:rustc-link-lib=ruby-2.7
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'create_dir_all fail: Os { code: 30, kind: Other, message: "Read-only file system" }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:179:46
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x56438c9f7ad0 - std::backtrace_rs::backtrace::libunwind::trace::h746c3e9529d524bc
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x56438c9f7ad0 - std::backtrace_rs::backtrace::trace_unsynchronized::h86340908ff889faa
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x56438c9f7ad0 - std::sys_common::backtrace::_print_fmt::h43f85f9b18230404
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x56438c9f7ad0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hc132ae1a5b5aa7cd
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x56438ca1611c - core::fmt::write::hdf023a0036d2a25f
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/core/src/fmt/mod.rs:1078:17
[INFO] [stderr]      5:     0x56438c9f48d2 - std::io::Write::write_fmt::h8580846154bcb66a
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/io/mod.rs:1519:15
[INFO] [stderr]      6:     0x56438c9f9805 - std::sys_common::backtrace::_print::h7ee55fed88d107a3
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x56438c9f9805 - std::sys_common::backtrace::print::h54a7d3e52a524177
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x56438c9f9805 - std::panicking::default_hook::{{closure}}::h60921e857bf55a40
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x56438c9f935a - std::panicking::default_hook::hf0f9afb1017317fc
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x56438c9f9fa1 - std::panicking::rust_panic_with_hook::h8d66bf42b407aaea
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x56438c9f9ae7 - std::panicking::begin_panic_handler::{{closure}}::hde71edcd925d0c5e
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x56438c9f7f8c - std::sys_common::backtrace::__rust_end_short_backtrace::h8a3c7d6cea578919
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x56438c9f9a49 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x56438ca154f1 - core::panicking::panic_fmt::h20225113c4a2f8fd
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x56438ca15313 - core::option::expect_none_failed::hc6d6d4cea4fdc285
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/core/src/option.rs:1268:5
[INFO] [stderr]     16:     0x56438c9df6df - core::result::Result<T,E>::expect::hb31649821f434066
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/core/src/result.rs:933:23
[INFO] [stderr]     17:     0x56438c9c138f - build_script_build::ruby_lib_link_name::h4a1c4c94b4a7cd05
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:179:13
[INFO] [stderr]     18:     0x56438c9c1a29 - build_script_build::dynamic_linker_args::h05ae8b773fbdccfd
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:208:47
[INFO] [stderr]     19:     0x56438c9c0f68 - build_script_build::use_dylib::h4ca5aa4406e5a693
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:97:5
[INFO] [stderr]     20:     0x56438c9c3be6 - build_script_build::main::h949bcfd3dbef6118
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:359:26
[INFO] [stderr]     21:     0x56438c9c7b0b - core::ops::function::FnOnce::call_once::h215e0c3eab1b4c96
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     22:     0x56438c9d867e - std::sys_common::backtrace::__rust_begin_short_backtrace::haa458f4f18d0358b
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     23:     0x56438c9d3d01 - std::rt::lang_start::{{closure}}::h54c7e277acbbb446
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/rt.rs:66:18
[INFO] [stderr]     24:     0x56438c9fa3c7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h54c39b9b8451875a
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     25:     0x56438c9fa3c7 - std::panicking::try::do_call::hcdfba51a06e21b42
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/panicking.rs:379:40
[INFO] [stderr]     26:     0x56438c9fa3c7 - std::panicking::try::hb36953ccd24f930d
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/panicking.rs:343:19
[INFO] [stderr]     27:     0x56438c9fa3c7 - std::panic::catch_unwind::hbb374cd03beb3824
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/panic.rs:396:14
[INFO] [stderr]     28:     0x56438c9fa3c7 - std::rt::lang_start_internal::h97dca9624db2aa85
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/rt.rs:51:25
[INFO] [stderr]     29:     0x56438c9d3cd7 - std::rt::lang_start::h442fe551e8d8ee61
[INFO] [stderr]                                  at /rustc/b2f80f6008cdafc35b4472bd46afa16cc6b0cd63/library/std/src/rt.rs:65:5
[INFO] [stderr]     30:     0x56438c9c3dca - main
[INFO] [stderr]     31:     0x7f17266720b3 - __libc_start_main
[INFO] [stderr]     32:     0x56438c9b90be - _start
[INFO] [stderr]     33:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "4c205c6a1c8e15079249937174e4fa357bc037b55bde9c9ddb457f079b514eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c205c6a1c8e15079249937174e4fa357bc037b55bde9c9ddb457f079b514eac", kill_on_drop: false }`
[INFO] [stdout] 4c205c6a1c8e15079249937174e4fa357bc037b55bde9c9ddb457f079b514eac