[INFO] updating cached repository https://github.com/Temeez/ra-state-walker
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 99bd62fe7c0378dab9f183163c0019c60c9c209a
[INFO] checking Temeez/ra-state-walker against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTemeez%2Fra-state-walker" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Temeez/ra-state-walker on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Temeez/ra-state-walker
[INFO] finished tweaking git repo https://github.com/Temeez/ra-state-walker
[INFO] tweaked toml for git repo https://github.com/Temeez/ra-state-walker written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Temeez/ra-state-walker already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0dda857667fc75bb0e1d0770b38c512268b9e6d88fb144012e81ac5d46a98b24
[INFO] running `"docker" "start" "-a" "0dda857667fc75bb0e1d0770b38c512268b9e6d88fb144012e81ac5d46a98b24"`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking byteorder v1.2.4
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.13
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking mint v0.5.1
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking downcast-rs v1.0.3
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]     Checking tuple_utils v0.2.0
[INFO] [stderr]     Checking futures v0.1.23
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]     Checking hetseq v0.1.5
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]     Checking wavefront_obj v5.1.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking claxon v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking fluent-locale v0.3.2
[INFO] [stderr]     Checking xi-unicode v0.1.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking semver v0.1.20
[INFO] [stderr]     Checking unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking log v0.4.4
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]     Checking itertools v0.7.8
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking ogg v0.4.1
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]     Checking stb_truetype v0.2.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking slice-deque v0.1.11
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking rustc_version v0.1.7
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling rustc_version_runtime v0.1.3
[INFO] [stderr]    Compiling xcb v0.8.2
[INFO] [stderr]     Checking lewton v0.5.2
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]     Checking fluent v0.2.0
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr] error: failed to run custom build command for `rustc_version_runtime v0.1.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rustc_version_runtime-b3af3b500238255c/build-script-build` (exit code: 101)
[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" }', src/libcore/result.rs:1189:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x563f140bd2e4 - backtrace::backtrace::libunwind::trace::hc586f95f659e6084
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x563f140bd2e4 - backtrace::backtrace::trace_unsynchronized::ha9827fdb593fd967
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x563f140bd2e4 - std::sys_common::backtrace::_print_fmt::h00c888c95e07165a
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:84
[INFO] [stderr]    3:     0x563f140bd2e4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h8407ffb2d059bc74
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:61
[INFO] [stderr]    4:     0x563f140dab4c - core::fmt::write::h4165a12a3856465f
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1024
[INFO] [stderr]    5:     0x563f140bae47 - std::io::Write::write_fmt::h499a0566ceaa0048
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x563f140bf2ce - std::sys_common::backtrace::_print::h05fbb11587298e2b
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:65
[INFO] [stderr]    7:     0x563f140bf2ce - std::sys_common::backtrace::print::h8021a3ed2b5ff07e
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:50
[INFO] [stderr]    8:     0x563f140bf2ce - std::panicking::default_hook::{{closure}}::hd3a6326f5c6c149f
[INFO] [stderr]                                at src/libstd/panicking.rs:193
[INFO] [stderr]    9:     0x563f140befc1 - std::panicking::default_hook::h7088fb00a0cb1faf
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x563f140bf8fb - std::panicking::rust_panic_with_hook::h6b223bff7721d4c1
[INFO] [stderr]                                at src/libstd/panicking.rs:471
[INFO] [stderr]   11:     0x563f140bf4ae - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:375
[INFO] [stderr]   12:     0x563f140d835e - core::panicking::panic_fmt::hed15e18c2b62a00c
[INFO] [stderr]                                at src/libcore/panicking.rs:82
[INFO] [stderr]   13:     0x563f140d8457 - core::result::unwrap_failed::h0c21f552c0eecb97
[INFO] [stderr]                                at src/libcore/result.rs:1189
[INFO] [stderr]   14:     0x563f1409a0a0 - core::result::Result<T,E>::unwrap::h7755fbaad2a48dc3
[INFO] [stderr]                                at /rustc/fdc0011561c6365c596dfd8fa1ef388162bc89c7/src/libcore/result.rs:957
[INFO] [stderr]   15:     0x563f1409661b - build_script_build::main::hea316d6961caffa7
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc_version_runtime-0.1.3/build.rs:27
[INFO] [stderr]   16:     0x563f14097df0 - std::rt::lang_start::{{closure}}::h5cbcd4cf663d2705
[INFO] [stderr]                                at /rustc/fdc0011561c6365c596dfd8fa1ef388162bc89c7/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x563f140bf393 - std::rt::lang_start_internal::{{closure}}::h1595fe6caeecd9df
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x563f140bf393 - std::panicking::try::do_call::he30f1dd3074e47c0
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   19:     0x563f140c573a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:78
[INFO] [stderr]   20:     0x563f140bfd90 - std::panicking::try::hf96e32b9e974850c
[INFO] [stderr]                                at src/libstd/panicking.rs:270
[INFO] [stderr]   21:     0x563f140bfd90 - std::panic::catch_unwind::h6019fde5b359e726
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x563f140bfd90 - std::rt::lang_start_internal::he1a167fa2ebf85bc
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x563f14097dc9 - std::rt::lang_start::h5e1e29eda07ac438
[INFO] [stderr]                                at /rustc/fdc0011561c6365c596dfd8fa1ef388162bc89c7/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x563f1409761a - main
[INFO] [stderr]   25:     0x7f341e96db97 - __libc_start_main
[INFO] [stderr]   26:     0x563f14095faa - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "0dda857667fc75bb0e1d0770b38c512268b9e6d88fb144012e81ac5d46a98b24"`
[INFO] running `"docker" "rm" "-f" "0dda857667fc75bb0e1d0770b38c512268b9e6d88fb144012e81ac5d46a98b24"`
[INFO] [stdout] 0dda857667fc75bb0e1d0770b38c512268b9e6d88fb144012e81ac5d46a98b24