[INFO] updating cached repository osoco/osoco-xmas2018-wasm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/osoco/osoco-xmas2018-wasm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/osoco/osoco-xmas2018-wasm" "work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/osoco/osoco-xmas2018-wasm"`
[INFO] [stderr] Cloning into 'work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/osoco/osoco-xmas2018-wasm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/osoco/osoco-xmas2018-wasm" "work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/gh/osoco/osoco-xmas2018-wasm"`
[INFO] [stderr] Cloning into 'work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/gh/osoco/osoco-xmas2018-wasm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 895b44235c5f10b09cbf7c51a8a6b984eeaaada9
[INFO] sha for GitHub repo osoco/osoco-xmas2018-wasm: 895b44235c5f10b09cbf7c51a8a6b984eeaaada9
[INFO] validating manifest of osoco/osoco-xmas2018-wasm on toolchain master#df25d79a33b0c82b716699a75a41bfdc6089850a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of osoco/osoco-xmas2018-wasm on toolchain try#424a4ae163d6517f301cd4048a4b5dd785be5b2f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing osoco/osoco-xmas2018-wasm
[INFO] finished frobbing osoco/osoco-xmas2018-wasm
[INFO] frobbed toml for osoco/osoco-xmas2018-wasm written to work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/osoco/osoco-xmas2018-wasm/Cargo.toml
[INFO] started frobbing osoco/osoco-xmas2018-wasm
[INFO] finished frobbing osoco/osoco-xmas2018-wasm
[INFO] frobbed toml for osoco/osoco-xmas2018-wasm written to work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/gh/osoco/osoco-xmas2018-wasm/Cargo.toml
[INFO] crate osoco/osoco-xmas2018-wasm already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking osoco/osoco-xmas2018-wasm against master#df25d79a33b0c82b716699a75a41bfdc6089850a for pr-59928
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-59928/worker-1/master#df25d79a33b0c82b716699a75a41bfdc6089850a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/osoco/osoco-xmas2018-wasm:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] defc0afe0a2cb4f488e26b42a05d6a9f3fb4e20175e19833ce5c2ad4ccf947fd
[INFO] running `"docker" "start" "-a" "defc0afe0a2cb4f488e26b42a05d6a9f3fb4e20175e19833ce5c2ad4ccf947fd"`
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling inflate v0.2.0
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling sdl2-sys v0.27.3
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]     Checking collider v0.3.1
[INFO] [stderr]    Compiling arrayvec v0.4.8
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling gl_generator v0.6.1
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]     Checking sdl2 v0.29.1
[INFO] [stderr]    Compiling gl v0.6.5
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling png v0.9.0
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling image v0.15.0
[INFO] [stderr]     Checking gate v0.6.2
[INFO] [stderr]    Compiling gate_build v0.6.2
[INFO] [stderr]    Compiling osoco_xmas2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: failed to run custom build command for `osoco_xmas2018 v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/osoco_xmas2018-de098683802f83b0/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'failed to create assets directory: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:997:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x555b5f823423 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h998473333b6173fd
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x555b5f81ee7b - std::sys_common::backtrace::_print::h7319fdc7898c609c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x555b5f822076 - std::panicking::default_hook::{{closure}}::he0ea18480832534c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x555b5f821e09 - std::panicking::default_hook::h5860d8261b6f7347
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x555b5f82277f - std::panicking::rust_panic_with_hook::h4edf41dc8786027d
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x555b5f822301 - std::panicking::continue_panic_fmt::hac7094691b749a9f
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x555b5f8221e5 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:308
[INFO] [stderr]    7:     0x555b5f83667c - core::panicking::panic_fmt::h56f12d13ec8a0d94
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x555b5f789617 - core::result::unwrap_failed::he8001ffcac40e89e
[INFO] [stderr]                                at /rustc/df25d79a33b0c82b716699a75a41bfdc6089850a/src/libcore/macros.rs:18
[INFO] [stderr]    9:     0x555b5f78ab39 - core::result::Result<T,E>::expect::hd5c9a82f5b2282ba
[INFO] [stderr]                                at /rustc/df25d79a33b0c82b716699a75a41bfdc6089850a/src/libcore/result.rs:825
[INFO] [stderr]   10:     0x555b5f34b95f - gate_build::asset_packer::AssetPacker::new::h533dbf4da67ab8f2
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gate_build-0.6.2/src/asset_packer.rs:49
[INFO] [stderr]   11:     0x555b5f34b388 - build_script_build::main::h26a6f0f39f8c1c96
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:32
[INFO] [stderr]   12:     0x555b5f34b87f - std::rt::lang_start::{{closure}}::h50e418ce1b1222fe
[INFO] [stderr]                                at /rustc/df25d79a33b0c82b716699a75a41bfdc6089850a/src/libstd/rt.rs:64
[INFO] [stderr]   13:     0x555b5f822182 - std::panicking::try::do_call::hc4555bf6034eaeaa
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   14:     0x555b5f826989 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:87
[INFO] [stderr]   15:     0x555b5f822d4c - std::rt::lang_start_internal::h4d7765d05754457a
[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]   16:     0x555b5f34b858 - std::rt::lang_start::hef4316cd13dc6413
[INFO] [stderr]                                at /rustc/df25d79a33b0c82b716699a75a41bfdc6089850a/src/libstd/rt.rs:64
[INFO] [stderr]   17:     0x555b5f34b6e9 - main
[INFO] [stderr]   18:     0x7f6e294432e0 - __libc_start_main
[INFO] [stderr]   19:     0x555b5f34a739 - _start
[INFO] [stderr]   20:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "defc0afe0a2cb4f488e26b42a05d6a9f3fb4e20175e19833ce5c2ad4ccf947fd"`
[INFO] running `"docker" "rm" "-f" "defc0afe0a2cb4f488e26b42a05d6a9f3fb4e20175e19833ce5c2ad4ccf947fd"`
[INFO] [stdout] defc0afe0a2cb4f488e26b42a05d6a9f3fb4e20175e19833ce5c2ad4ccf947fd