[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] testing danielpclark/faster_path against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielpclark%2Ffaster_path" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danielpclark/faster_path on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-0/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" "+1.60.0" "fetch" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", 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] 0022c5a221bc7346d27fb0effb3ec851269ab441d55508055bf84c3267e2c834
[INFO] running `Command { std: "docker" "start" "-a" "0022c5a221bc7346d27fb0effb3ec851269ab441d55508055bf84c3267e2c834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0022c5a221bc7346d27fb0effb3ec851269ab441d55508055bf84c3267e2c834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0022c5a221bc7346d27fb0effb3ec851269ab441d55508055bf84c3267e2c834", kill_on_drop: false }`
[INFO] [stdout] 0022c5a221bc7346d27fb0effb3ec851269ab441d55508055bf84c3267e2c834
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] 3c26852bdeb9f54bcd19101b74290857b1e5ca0fbd93836362df32117107031d
[INFO] running `Command { std: "docker" "start" "-a" "3c26852bdeb9f54bcd19101b74290857b1e5ca0fbd93836362df32117107031d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rutie v0.6.0
[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-4c9578b1e3befaca/build-script-build` (exit status: 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: ReadOnlyFilesystem, 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:     0x56150a06a65d - std::backtrace_rs::backtrace::libunwind::trace::hee598835bc88d35b
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x56150a06a65d - std::backtrace_rs::backtrace::trace_unsynchronized::h9cdc730ba5cf5d72
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x56150a06a65d - std::sys_common::backtrace::_print_fmt::h75aeaf7ed30e43fa
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:66:5
[INFO] [stderr]      3:     0x56150a06a65d - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h606862f787600875
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:45:22
[INFO] [stderr]      4:     0x56150a08b51c - core::fmt::write::he803f0f418caf762
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/fmt/mod.rs:1190:17
[INFO] [stderr]      5:     0x56150a066908 - std::io::Write::write_fmt::h70bc45872f37e7bb
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/io/mod.rs:1657:15
[INFO] [stderr]      6:     0x56150a06c557 - std::sys_common::backtrace::_print::h64d038cf8ac3e13e
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:48:5
[INFO] [stderr]      7:     0x56150a06c557 - std::sys_common::backtrace::print::h359300b4a7fccf65
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:35:9
[INFO] [stderr]      8:     0x56150a06c557 - std::panicking::default_hook::{{closure}}::hf51be35e2f510149
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:295:22
[INFO] [stderr]      9:     0x56150a06c220 - std::panicking::default_hook::h03ca0f22e1d2d25e
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:314:9
[INFO] [stderr]     10:     0x56150a06cca9 - std::panicking::rust_panic_with_hook::h3b7380e99b825b63
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:698:17
[INFO] [stderr]     11:     0x56150a06c997 - std::panicking::begin_panic_handler::{{closure}}::h8e849d0710154ce0
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:588:13
[INFO] [stderr]     12:     0x56150a06ab24 - std::sys_common::backtrace::__rust_end_short_backtrace::hedcdaddbd4c46cc5
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:138:18
[INFO] [stderr]     13:     0x56150a06c6a9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:584:5
[INFO] [stderr]     14:     0x56150a02e423 - core::panicking::panic_fmt::he1bbc7336d49a357
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/panicking.rs:143:14
[INFO] [stderr]     15:     0x56150a02e4b3 - core::result::unwrap_failed::h719f957ed74f93fd
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/result.rs:1749:5
[INFO] [stderr]     16:     0x56150a04907b - core::result::Result<T,E>::expect::h18bd9762c3e52682
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/result.rs:1022:23
[INFO] [stderr]     17:     0x56150a03f996 - build_script_build::ruby_lib_link_name::hbd673b31dfb8b37e
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:179:13
[INFO] [stderr]     18:     0x56150a03fec3 - build_script_build::dynamic_linker_args::h0d9ce82ead9375e6
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:208:47
[INFO] [stderr]     19:     0x56150a03f52c - build_script_build::use_dylib::hcde127f59a0ab81d
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:97:5
[INFO] [stderr]     20:     0x56150a041eba - build_script_build::main::h2fa47ce0d04c8d16
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:359:26
[INFO] [stderr]     21:     0x56150a04341b - core::ops::function::FnOnce::call_once::h69fd1d39b086980a
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     22:     0x56150a03af5e - std::sys_common::backtrace::__rust_begin_short_backtrace::h830ad14b7625b59e
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/sys_common/backtrace.rs:122:18
[INFO] [stderr]     23:     0x56150a0386d1 - std::rt::lang_start::{{closure}}::heae8d4a09bfc7bf8
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:145:18
[INFO] [stderr]     24:     0x56150a069d41 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hb7014f43484a8b4e
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     25:     0x56150a069d41 - std::panicking::try::do_call::h7bc9dc436daeb8c7
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:492:40
[INFO] [stderr]     26:     0x56150a069d41 - std::panicking::try::h653d68a27ff5f175
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:456:19
[INFO] [stderr]     27:     0x56150a069d41 - std::panic::catch_unwind::h9d739f9f59895e68
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panic.rs:137:14
[INFO] [stderr]     28:     0x56150a069d41 - std::rt::lang_start_internal::{{closure}}::hf006f2bc7ce22bbe
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:128:48
[INFO] [stderr]     29:     0x56150a069d41 - std::panicking::try::do_call::hfb39d6df61a2e69f
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:492:40
[INFO] [stderr]     30:     0x56150a069d41 - std::panicking::try::h13e2d225134958ac
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panicking.rs:456:19
[INFO] [stderr]     31:     0x56150a069d41 - std::panic::catch_unwind::h3bd49b5a5dfb1a50
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/panic.rs:137:14
[INFO] [stderr]     32:     0x56150a069d41 - std::rt::lang_start_internal::h2ba92edce36c035e
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:128:20
[INFO] [stderr]     33:     0x56150a0386a0 - std::rt::lang_start::h3d51fe419b78cf4d
[INFO] [stderr]                                  at /rustc/7737e0b5c4103216d6fd8cf941b7ab9bdbaace7c/library/std/src/rt.rs:144:17
[INFO] [stderr]     34:     0x56150a04328c - main
[INFO] [stderr]     35:     0x7efc1f39a0b3 - __libc_start_main
[INFO] [stderr]     36:     0x56150a02ebae - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "3c26852bdeb9f54bcd19101b74290857b1e5ca0fbd93836362df32117107031d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c26852bdeb9f54bcd19101b74290857b1e5ca0fbd93836362df32117107031d", kill_on_drop: false }`
[INFO] [stdout] 3c26852bdeb9f54bcd19101b74290857b1e5ca0fbd93836362df32117107031d