[INFO] updating cached repository rasviitanen/valency
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rasviitanen/valency
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rasviitanen/valency" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/rasviitanen/valency"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/rasviitanen/valency'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rasviitanen/valency" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/rasviitanen/valency"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/rasviitanen/valency'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 029c3bdc827c33871aaf79bd7d6344c4f0e1a31c
[INFO] sha for GitHub repo rasviitanen/valency: 029c3bdc827c33871aaf79bd7d6344c4f0e1a31c
[INFO] validating manifest of rasviitanen/valency on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rasviitanen/valency on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rasviitanen/valency
[INFO] finished frobbing rasviitanen/valency
[INFO] frobbed toml for rasviitanen/valency written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/rasviitanen/valency/Cargo.toml
[INFO] started frobbing rasviitanen/valency
[INFO] finished frobbing rasviitanen/valency
[INFO] frobbed toml for rasviitanen/valency written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/rasviitanen/valency/Cargo.toml
[INFO] crate rasviitanen/valency already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking rasviitanen/valency against master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-2/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/rasviitanen/valency:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8aa8867a2254ab4024862f1d0ada4cff270a2c9cc5aa828c433db364b949e4f4
[INFO] running `"docker" "start" "-a" "8aa8867a2254ab4024862f1d0ada4cff270a2c9cc5aa828c433db364b949e4f4"`
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling atom v0.3.5
[INFO] [stderr]    Compiling mopa v0.2.2
[INFO] [stderr]    Compiling crossbeam v0.3.2
[INFO] [stderr]    Compiling tuple_utils v0.2.0
[INFO] [stderr]    Compiling approx v0.1.1
[INFO] [stderr]    Compiling mint v0.5.1
[INFO] [stderr]    Compiling minimp3-sys v0.3.0
[INFO] [stderr]     Checking slice-deque v0.1.14
[INFO] [stderr]     Checking dirs v1.0.4
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling xcb v0.8.2
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.4
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking euclid v0.19.2
[INFO] [stderr]     Checking num-complex v0.2.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling syn v0.15.15
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]     Checking crossbeam-epoch v0.6.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling rustc_version_runtime v0.1.5
[INFO] [stderr]    Compiling glsl-layout-derive v0.1.1
[INFO] [stderr] error: failed to run custom build command for `rustc_version_runtime v0.1.5`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/rustc_version_runtime-6cdb5ca536f137eb/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:999:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5601005704a3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hccbe8d45d7484fda
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x56010056c28b - std::sys_common::backtrace::_print::h59087b8c7775eb90
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x56010056f336 - std::panicking::default_hook::{{closure}}::h32749f0e2c293c0c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x56010056f0cb - std::panicking::default_hook::h550715cdd86b36ad
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x56010056f98f - std::panicking::rust_panic_with_hook::hcf0daecbf39921f5
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x56010056f511 - std::panicking::continue_panic_fmt::ha5d9448e58fe5b5c
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x56010056f3f5 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:308
[INFO] [stderr]    7:     0x56010058488c - core::panicking::panic_fmt::h3e51accd26be5a40
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x56010053d662 - core::result::unwrap_failed::h315573d0969800a7
[INFO] [stderr]                                at /rustc/8869ee03d7f258e1b76a11c6fbb01b5708a9f504/src/libcore/macros.rs:18
[INFO] [stderr]    9:     0x56010053ddc7 - core::result::Result<T,E>::unwrap::had7da146b6cdc2c3
[INFO] [stderr]                                at /rustc/8869ee03d7f258e1b76a11c6fbb01b5708a9f504/src/libcore/result.rs:800
[INFO] [stderr]   10:     0x56010053b47a - build_script_build::main::h2a637b435e7d0d67
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc_version_runtime-0.1.5/build.rs:27
[INFO] [stderr]   11:     0x56010053cc2f - std::rt::lang_start::{{closure}}::hf5fe0460dbf93e13
[INFO] [stderr]                                at /rustc/8869ee03d7f258e1b76a11c6fbb01b5708a9f504/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x56010056f3e2 - std::panicking::try::do_call::h8c864a5f35670176
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   13:     0x560100575d19 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   14:     0x56010056fe9c - std::rt::lang_start_internal::h763af17830f82761
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   15:     0x56010053cc08 - std::rt::lang_start::hfa5148bfe3f09aea
[INFO] [stderr]                                at /rustc/8869ee03d7f258e1b76a11c6fbb01b5708a9f504/src/libstd/rt.rs:64
[INFO] [stderr]   16:     0x56010053c479 - main
[INFO] [stderr]   17:     0x7f4cb9a022e0 - __libc_start_main
[INFO] [stderr]   18:     0x56010053adf9 - _start
[INFO] [stderr]   19:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "8aa8867a2254ab4024862f1d0ada4cff270a2c9cc5aa828c433db364b949e4f4"`
[INFO] running `"docker" "rm" "-f" "8aa8867a2254ab4024862f1d0ada4cff270a2c9cc5aa828c433db364b949e4f4"`
[INFO] [stdout] 8aa8867a2254ab4024862f1d0ada4cff270a2c9cc5aa828c433db364b949e4f4