[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#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielpclark%2Ffaster_path" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danielpclark/faster_path on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "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-4/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lazy_static v1.3.0
[INFO] [stderr]   Downloaded libc v0.2.58
[INFO] [stderr]   Downloaded memchr v2.2.0
[INFO] [stderr]   Downloaded rutie v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c3d7bc47e0a95e97c6ab6d1458d5902cf23558f88b7e9c0cb2416dd6fbb8f48
[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" "4c3d7bc47e0a95e97c6ab6d1458d5902cf23558f88b7e9c0cb2416dd6fbb8f48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c3d7bc47e0a95e97c6ab6d1458d5902cf23558f88b7e9c0cb2416dd6fbb8f48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c3d7bc47e0a95e97c6ab6d1458d5902cf23558f88b7e9c0cb2416dd6fbb8f48", kill_on_drop: false }`
[INFO] [stdout] 4c3d7bc47e0a95e97c6ab6d1458d5902cf23558f88b7e9c0cb2416dd6fbb8f48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 816a35c575478fbeccdfa43e50977035fab3fa61af2a5104d3a774c4a8e58c08
[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" "816a35c575478fbeccdfa43e50977035fab3fa61af2a5104d3a774c4a8e58c08", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling memchr v2.2.0
[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-a6f3691f1b728cc6/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: 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:     0x55c5e2c94bb0 - std::backtrace_rs::backtrace::libunwind::trace::h247d9dc800afe0ad
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55c5e2c94bb0 - std::backtrace_rs::backtrace::trace_unsynchronized::h9a4153306adf486c
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55c5e2c94bb0 - std::sys_common::backtrace::_print_fmt::h1ac8daa5000ee24c
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55c5e2c94bb0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h22a8e55d2cc5363a
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55c5e2cb2e9f - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/core/src/fmt/mod.rs:1094:17
[INFO] [stderr]      5:     0x55c5e2c922c5 - std::io::Write::write_fmt::h441a47830651073b
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/io/mod.rs:1580:15
[INFO] [stderr]      6:     0x55c5e2c9675b - std::sys_common::backtrace::_print::hd1e0ee1c195f9f05
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55c5e2c9675b - std::sys_common::backtrace::print::h7d1098def5c25d20
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55c5e2c9675b - std::panicking::default_hook::{{closure}}::h484b8b15967e42c8
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55c5e2c9623d - std::panicking::default_hook::h82c79ca49716b79d
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55c5e2c96d0d - std::panicking::rust_panic_with_hook::h6df253a3c973d6b6
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x55c5e2c96907 - std::panicking::begin_panic_handler::{{closure}}::hc6a4120674935ea3
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x55c5e2c9506c - std::sys_common::backtrace::__rust_end_short_backtrace::h9b5f057c8351b0b1
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55c5e2c96869 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x55c5e2c5d071 - core::panicking::panic_fmt::hbe99dddd3092ba3c
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x55c5e2c5d103 - core::result::unwrap_failed::hf79563fef9d11ab8
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x55c5e2c74710 - core::result::Result<T,E>::expect::hae0b5ae50fd1992f
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/core/src/result.rs:997:23
[INFO] [stderr]     17:     0x55c5e2c77140 - build_script_build::ruby_lib_link_name::h70ff9e57b37a3593
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:179:13
[INFO] [stderr]     18:     0x55c5e2c7783f - build_script_build::dynamic_linker_args::h55c3033298690556
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:208:47
[INFO] [stderr]     19:     0x55c5e2c76cf8 - build_script_build::use_dylib::h4d29691abd0cbde0
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:97:5
[INFO] [stderr]     20:     0x55c5e2c79a78 - build_script_build::main::hfe20cfb7fcb1f4bd
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rutie-0.6.0/build.rs:359:26
[INFO] [stderr]     21:     0x55c5e2c7bc5b - core::ops::function::FnOnce::call_once::h2f578c6d65bf5d93
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     22:     0x55c5e2c73c1e - std::sys_common::backtrace::__rust_begin_short_backtrace::hcacbb0137e85d891
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     23:     0x55c5e2c6b771 - std::rt::lang_start::{{closure}}::h7355e7be02477b11
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/rt.rs:66:18
[INFO] [stderr]     24:     0x55c5e2c9710a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h98fbc5823393ca6f
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     25:     0x55c5e2c9710a - std::panicking::try::do_call::h210d0709dd1d5fd6
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/panicking.rs:379:40
[INFO] [stderr]     26:     0x55c5e2c9710a - std::panicking::try::hc60c2c01c5cf7473
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/panicking.rs:343:19
[INFO] [stderr]     27:     0x55c5e2c9710a - std::panic::catch_unwind::h7480a56877b30ca9
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/panic.rs:431:14
[INFO] [stderr]     28:     0x55c5e2c9710a - std::rt::lang_start_internal::he77194431b0ee4a2
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/rt.rs:51:25
[INFO] [stderr]     29:     0x55c5e2c6b750 - std::rt::lang_start::h4b01bab96c0ad385
[INFO] [stderr]                                  at /rustc/b0d0ea232bdae12fa8da8491a91ae1db029990ef/library/std/src/rt.rs:65:5
[INFO] [stderr]     30:     0x55c5e2c79c5c - main
[INFO] [stderr]     31:     0x7f3eae5690b3 - __libc_start_main
[INFO] [stderr]     32:     0x55c5e2c5d76e - _start
[INFO] [stderr]     33:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "816a35c575478fbeccdfa43e50977035fab3fa61af2a5104d3a774c4a8e58c08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "816a35c575478fbeccdfa43e50977035fab3fa61af2a5104d3a774c4a8e58c08", kill_on_drop: false }`
[INFO] [stdout] 816a35c575478fbeccdfa43e50977035fab3fa61af2a5104d3a774c4a8e58c08